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Metal Heat Treatment Product List and Ranking from 20 Manufacturers, Suppliers and Companies | IPROS GMS

Last Updated： Aggregation Period:Feb 11, 2026～Mar 10, 2026
This ranking is based on the number of page views on our site.

Metal Heat Treatment Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Feb 11, 2026～Mar 10, 2026
This ranking is based on the number of page views on our site.

  1. 丸眞熱処理工業 Yamanashi//Manufacturing and processing contract
  2. ダイネツ Osaka//Manufacturing and processing contract
  3. 美加川製作所 Kumamoto//Manufacturing and processing contract
  4. 江新エンジニアリング Tokyo//Industrial Machinery
  5. 5 丸眞製作所 Nagano//Ferrous/Non-ferrous metals
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Metal Heat Treatment Product ranking

Last Updated： Aggregation Period:Feb 11, 2026～Mar 10, 2026
This ranking is based on the number of page views on our site.

  1. Marushin Heat Treatment Co., Ltd. Business Introduction: "Metal Heat Treatment" 丸眞熱処理工業
  2. Mikagawa Manufacturing Co., Ltd. Business Introduction 美加川製作所
  3. Dainetsu Co., Ltd. Company Profile ダイネツ
  4. Metal heat treatment (from small to large items, from single pieces to mass production) 江新エンジニアリング
  5. 4 Metal Heat Treatment: Heating Treatment of SUJ2 Round Bars by μ High-Frequency Quenching 丸眞熱処理工業

Metal Heat Treatment Product List

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Metal heat treatment (from small to large items, from single pieces to mass production)

Metal heat treatment (from small to large items, from single pieces to mass production)

Metal heat treatment such as stress relief annealing.

Metals are diverse and each has different characteristics, requiring different appropriate heat treatment methods (such as temperature and time) for each material. Additionally, when some processing is applied to the metal (the processed material), factors like processing heat can cause the metal structure to become unbalanced, leading to internal stress that accumulates, known as residual stress. As a countermeasure, heat treatments such as "stress relief annealing" are used to uniform the stress distribution. The question of "how to reduce residual stress" greatly influences the precision of the product. Issues such as lack of precision during machining or deterioration of precision due to aging distortions can often be resolved through a planned heat treatment process. Our company, well-versed in metal heat treatment, responds to various customer demands.

  • Surface treatment contract service
  • Metal Heat Treatment

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Introduction to Sekisarma Thermal Processing Technology

Introduction to Sekisarma Thermal Processing Technology

High-quality pursuit through high technology / Diverse heat treatment processing techniques born from advanced equipment.

At Sekisarmal Co., Ltd., we prioritize the enhancement of our facilities above all else to meet the diverse needs of our customers. A variety of technologies born from various machines, and high quality produced by advanced technology. We will continue to strive forward, carrying the great expectations of the metal products industry.

  • others
  • Metal Heat Treatment

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Metal Heat Treatment "Vacuum Heat Treatment"

Metal Heat Treatment "Vacuum Heat Treatment"

Clean working environment! We carry out stainless steel solid solution treatment, vacuum magnetic annealing, and more.

"Vacuum heat treatment" refers to a general term for heat treatment conducted in a vacuum furnace. Unlike in the atmosphere, it does not cause oxidation or decarburization, making it a technology that allows for a highly lustrous finish. It is adopted for the heat treatment of many components and products, typically performed in a vacuum with a pressure of 1 to 10^−3 Pa or in an inert gas atmosphere. Our company maintains a stable and high production capacity from single items to mass production, performing processes such as quenching of various tools and parts, solid solution treatment of stainless steel, and vacuum magnetic annealing. [Features] ■ Reduction of heat treatment distortion through vacuum heating and gas cooling ■ Clean working environment ■ Processing possible with heat cycles and vacuum levels set according to purpose ■ High lustrous finish achievable due to the absence of oxidation and decarburization ■ Stable and high production capacity maintained from single items to mass production *For more details, please refer to the external link page or feel free to contact us.

  • Vacuum forming machine
  • Heating device
  • Other metal materials
  • Metal Heat Treatment

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Metal heat treatment "quenching and tempering"

Metal heat treatment "quenching and tempering"

We respond to various needs with the technology and know-how cultivated in the precision manufacturing area of the Suwa region!

"Quenching" is a process in which steel is heated to a temperature that transforms it into austenite and then rapidly cooled. While quenching increases hardness, it also makes the material brittle and prone to cracking, so tempering is always performed to adjust hardness and add toughness. "Tempering" refers to the process of reheating the material to a temperature lower than that used during quenching, holding it for a certain period, and then gradually cooling it. Our company is equipped with batch-type and continuous-type quenching furnaces, as well as various tempering furnaces, allowing us to meet a wide range of customer needs. [Features] ■ Stable processing enabled by the use of diverse equipment ■ Use of dedicated furnaces for small items prevents product loss ■ Expertise and know-how cultivated in the Suwa region, a hub for precision manufacturing, to meet various needs *For more details, please refer to the external link page or feel free to contact us.

  • Heating device
  • Processing Contract
  • Other metal materials
  • Metal Heat Treatment

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Metal Heat Treatment: Heating Treatment of SUJ2 Round Bars by μ High-Frequency Quenching

Metal Heat Treatment: Heating Treatment of SUJ2 Round Bars by μ High-Frequency Quenching

The original characteristics of high-frequency quenching treatment can also be achieved with small diameter round bars such as φ3.

When high-frequency hardening is applied to φ3SUJ2 (bearing steel), it is very difficult to achieve the characteristics of high-frequency hardening, where the surface is hard and the core remains tough, using existing equipment. This is because the small diameter allows heat to affect the core, resulting in full hardening. However, with the 'μ high-frequency hardening treatment' developed by Marushin Heat Treatment Industry, it is possible to achieve the original characteristics of high-frequency hardening, where the surface is hard and the core remains tough, even for small diameter round bars like φ3. 【Test Piece Measurement Results】 ○ Hardness Comparison → Oil-quenched product: Hardened to the core → μ high-frequency hardened: Forms a hard layer of about 0.5mm, core remains tough ○ Bending Test Results → Oil-quenched: Fractured at 500N → μ high-frequency product: No fracture ○ Product Characteristics (※ Runout at product acceptance: approximately 0.02-0.04mm) → Oil-quenched product: Runout of about 0.3-0.4mm → μ high-frequency product: Runout of about 0.15-0.3mm For more details, please contact us or download the catalog.

  • Processing Contract
  • Metal Heat Treatment

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[Helpful Material Provided] Metal Heat Treatment Guide

[Helpful Material Provided] Metal Heat Treatment Guide

Introduction to metal heat treatment such as "high-frequency hardening" and "shot peening"!

"Heat treatment" refers to a method that enhances the quality of materials, similar to shape processing, and involves changing the properties of materials through heating and cooling. It also involves altering the hardness and properties of metals and other materials through heating and cooling. This includes processes such as "quenching," "high-frequency quenching," "shot peening," and "surface treatment," which are all part of metal heat treatment. 【Metal Heat Treatment (Excerpt)】 ■ What is heat treatment ■ Quenching ■ Tempering ■ Annealing ■ Normalizing *For more details, please refer to the external link page or feel free to contact us.

  • Heating device
  • Metal Heat Treatment

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Technical Introduction: "Vacuum Carburizing and Quenching"

Technical Introduction: "Vacuum Carburizing and Quenching"

We provide surface modification technology capable of mixed processing of various works.

Vacuum carburizing hardening is a surface hardening treatment that involves heating the workpiece under reduced pressure, allowing the necessary amount of carbon to diffuse and penetrate for the formation of the specified hardened layer, and then hardening it in cooling oil. It eliminates grain boundary oxidation and incomplete hardening structures, making it possible to improve mechanical strength. 【Features】 ■ Capable of forming a deep hardened layer in a relatively short time ■ Environmentally friendly ■ Easy to operate with simple controls *For more details, please download the PDF or feel free to contact us.

  • Processing Contract
  • Other machine elements
  • Metal Heat Treatment

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Long-life technology for hot work tool steel 'FCD-H treatment'

Long-life technology for hot work tool steel 'FCD-H treatment'

Achieving a lifespan 3 to 5 times longer than conventional industrial blades! Introduction of technology for extending the lifespan of hot work tool steel.

Introducing Kunitomo Thermal Engineering's unique development technology, "FCD-H Treatment." It is resistant to thermal fatigue and reduces the occurrence of heat cracks. Since no special processes are required, it can be performed simultaneously with vacuum hardening, thereby reducing labor costs. Additionally, it achieves high durability and long lifespan for hot work tool steels. 【Features】 ■ Minimal plastic deformation ■ Strong against thermal fatigue ■ No special processes required ■ Improved wear resistance and durability *For more details, please refer to the PDF document or feel free to contact us.

  • Other surface treatment equipment
  • Metal Heat Treatment

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Mikagawa Manufacturing Co., Ltd. Business Introduction

Mikagawa Manufacturing Co., Ltd. Business Introduction

Support for mass-produced items such as bright annealing of small products using continuous annealing furnaces and solution treatment of stainless steel!

Mikagawa Manufacturing Co., Ltd. delivers excellent products with high quality and reliability, based on established production technologies for commissioned metal heat treatment, surface treatment, bright annealing, vacuum hardening, ion nitriding, and more, utilizing new equipment such as three-chamber pressure cooling vacuum treatment furnaces. We specialize in bright heat treatment of electromagnetic relay components and can also handle copper brazing. Additionally, we have obtained ISO 9001 and Eco Action 21 certifications, so please feel free to contact us if you have any requests. 【Features】 - We possess a continuous furnace capable of magnetic annealing and brazing for small parts, which is rare in Kyushu. - We ensure a clean factory environment by avoiding oil hardening and carburizing hardening processes. - We excel in bright heat treatment processes such as vacuum hardening. *For more details, please download the PDF or feel free to contact us.

  • Electric furnace
  • Surface treatment contract service
  • Metal Heat Treatment

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[Proposal / Solution Case] Quality Variation

[Proposal / Solution Case] Quality Variation

Case Study 4: "I would like to minimize the variation in quality as much as possible."

We would like to introduce a case study of metal heat treatment solutions proposed by our company. The consultation was regarding the desire to reduce quality variation within the same lot and between different lots. Due to the lack of uniform temperature for each product, the microstructure and hardness after heat treatment vary, and the shape (distortion) also changes. Our company ensures consistent manufacturing without variation by implementing equipment and personnel responses, creating heat treatment condition documents and QC process charts, and maintaining an accurate work management system through internal quality patrols and customer process audits. [Case Study] ■ Issues - Quality variation within the same lot and between different lots ■ Responses - Regular measurement and assurance of temperature measurement accuracy and temperature distribution within the furnace - Creation of treatment condition documents and QC process charts - Accurate work management system through internal quality patrols and customer process audits - Participation in various training sessions, including skills qualification education and heat treatment challenger courses *Please feel free to contact us for more details.

  • Processing Contract
  • Other machine elements
  • Metal Heat Treatment

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Onex Corporation Company Profile

Onex Corporation Company Profile

Connect passion to a more advanced crystallization of "technology" and grow and leap even further.

The global landscape is changing significantly with the advancement of globalization, including the rise of the EU, China, and India, among other Asian countries. In the midst of these changes, we are not allowed to remain complacent in our current situation; we are constantly required to undergo self-transformation to adapt to change. Ohnex, as a specialized company in metal heat treatment that supports the industrial foundation, has been engaged in heat treatment across a wide range of fields, including automotive, industrial machinery, machine tools, and construction machinery-related parts, earning high trust from our customers regarding quality. Utilizing our know-how based on over half a century of heat treatment technology, we are committed to improving quality and productivity while fulfilling our social responsibilities, including addressing environmental issues, and boldly challenging new heat treatment technologies and fields. Additionally, the Ohnex Group provides services in cargo transportation and information system development, in addition to heat treatment, to meet the diverse needs of our customers. We will continue to do our utmost to respond to our customers' requests. We sincerely ask for your exceptional support and patronage. For more details, please contact us or refer to our catalog.

  • Surface treatment contract service
  • Metal Heat Treatment

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Metal heat treatment "Annealing"

Metal heat treatment "Annealing"

Annealing tailored to steel materials, quantity, and application is possible! We have a non-oxidizing furnace, vacuum furnace, and continuous furnace.

"Annealing" is a technique that softens metal, removes internal stress, and homogenizes the metal structure through heating and cooling. At our company, we perform various types of annealing using different equipment tailored to specific purposes, accommodating everything from large components to extremely small precision parts. 【Features】 ■ Equipped with oxidation-free furnaces, vacuum furnaces, and continuous furnaces ■ Capable of annealing steel materials according to quantity and application ■ Can also measure magnetic remanence after magnetic annealing using an automatic remanence meter (HC meter) *For more details, please refer to the external link page or feel free to contact us.

  • Heating device
  • Processing Contract
  • Other metal materials
  • Metal Heat Treatment

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Metal heat treatment "Carburizing quenching treatment"

Metal heat treatment "Carburizing quenching treatment"

Stable high production capacity! It is applied to various machine parts, including automotive components.

"Carburizing hardening treatment" is a heat treatment method that hardens the surface of steel by allowing carbon to permeate it. The hardness of steel after hardening is influenced by the carbon content; therefore, steel with a low carbon content increases in hardness through carburizing hardening. Our company is equipped with fully automatic carburizing furnaces and continuous gas carburizing furnaces, providing stable and high production capacity for thin, small, large, single items, and mass production. [Features] - Utilizing the characteristics of each facility, we can accommodate very shallow carburizing for thin and small items. - Carburizing nitriding treatment is also performed depending on the type of steel. *For more details, please refer to the external link page or feel free to contact us.

  • Heating device
  • Processing Contract
  • Other metal materials
  • Metal Heat Treatment

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Business activities

Business activities

Minami Shin Netsuren Kogyo creates reliable products from the customer's perspective.

Our company contributes to improving mechanical properties by performing heat treatment on automotive parts, construction machinery, electronic devices, equipment parts, molds, and tools. Since these products are used in critical components, their quality assurance requires that defects be as close to zero as possible, and we strive for continuous improvement every day. Following our quality policy of "creating reliable products from the customer's perspective," we are committed not only to traditional heat treatment technologies but also to new technologies, aiming to be of service to our customers. For more details, please download our catalog.

  • Other assembly machines
  • Other processing machines
  • Other electronic parts
  • Metal Heat Treatment

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Marushin Heat Treatment Co., Ltd. Business Introduction: "Metal Heat Treatment"

Marushin Heat Treatment Co., Ltd. Business Introduction: "Metal Heat Treatment"

We are a comprehensive manufacturer of metal heat treatment capable of meeting all heat treatment needs.

Marushin Heat Treatment Co., Ltd. is a comprehensive manufacturer of metal heat treatment that can meet all heat treatment needs, from mass production of products using large-scale heat treatment equipment for carburizing, quenching, and tempering batch processing, to individual heat treatment of molds using vacuum furnaces. We can provide heat treatment tailored to your requirements, from large items and mass production capable of 1,000 kg/batch for carburizing, quenching, and tempering, to precision parts using continuous furnaces. Additionally, to support researchers and developers who are conducting daily research, testing, and prototyping to create mass-produced products, we have established the "Prototyping Convenience Workshop" to offer suggestions and cooperation in heat treatment. If you are a development manager facing challenges such as having too small a quantity or too many conditions to receive heat treatment, please feel free to consult with us. 【Sales Items】 ○ Metal Heat Treatment → Vacuum Heat Treatment → Atmosphere Heat Treatment → High-Frequency Quenching and Tempering, Gas Nitriding → μ High-Frequency Quenching and Tempering ○ Prototyping Convenience Workshop → The concept is "We respond casually to anything, no matter how many." For more details, please contact us or download the catalog.

  • Processing Contract
  • Prototype Services
  • Metal Heat Treatment

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Dainetsu Co., Ltd. Company Profile

Dainetsu Co., Ltd. Company Profile

We provide quality that meets your needs and reliable heat treatment technology!

Dainetsu Co., Ltd. is a metal heat treatment processing company with three factories: the headquarters factory and Minato factory in Sakai City, Osaka Prefecture, and the Kochi factory in Kochi Prefecture. At our headquarters factory, we handle a wide range of heat treatment processes for steel materials, including quenching and tempering, annealing, normalizing, and solution treatment, accommodating items from small parts to those exceeding 15 tons. Additionally, at the Minato factory, we perform surface heat treatments such as oxidation-free quenching and tempering using an all-case atmosphere furnace, gas carburizing, and carburizing nitriding, as well as shot blasting. At the Kochi factory, we can handle general heat treatment processes for steel materials, including quenching and tempering, annealing, normalizing, and solution treatment, accommodating large diameter rings up to φ2700. [Business Activities] ■ General metal heat treatment processing [ISO Certification] ■ ISO 9002 certification obtained ■ ISO 9001 certification obtained *For more details, please download the PDF or feel free to contact us.

  • Other Auto Parts
  • Processing Contract
  • Other machine elements
  • Metal Heat Treatment

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Glossary of Terms for Metal Heat Treatment: Explanation of 7 Types of Metal Heat Treatment!

Glossary of Terms for Metal Heat Treatment: Explanation of 7 Types of Metal Heat Treatment!

"Annealing," also known as "softening," will unravel the "mystery" of heat treatment when you read this!

Our company explains seven types of metal heat treatment. We introduce processes such as "quenching and tempering," "sub-zero treatment," "high-temperature tempering," and "aging treatment." Reading this will unravel the "mysteries" of heat treatment. Please take a moment to read it. 【Contents (partial)】 ■ Quenching and tempering ■ High-temperature tempering ■ Sub-zero treatment ■ High-temperature tempering ■ Stress relief *For more details, please refer to the PDF document or feel free to contact us.

  • Other surface treatment equipment
  • Contract manufacturing
  • Metal Heat Treatment

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[Case Study] Development of Special Material Quenching Technology 'DF Quench'

[Case Study] Development of Special Material Quenching Technology 'DF Quench'

Newly developed heat treatment method "DF Quench"! It has been commercialized after undergoing various mechanical tests.

Here is a case study solved by Kuniyu Thermal Engineering. For the steel materials used in seismic reinforcement hardware for large buildings, simply applying standard heat treatment was insufficient to balance the mechanical properties at a high level. Additionally, considering the carbon equivalent from the perspective of welding and construction, the available steel materials were limited, and we received a request asking if we could find a solution. Since the customer had already considered various means, our company designed a microstructure that could meet the requirements. We newly developed a heat treatment method called "DF Quench" to realize that microstructure, and after various mechanical tests, we were able to commercialize the product. [Case Study] ■ Solution Points - Improved strength of seismic reinforcement hardware for large buildings - Developed new technology that could not be solved with standard heat treatment! ■ Technology Used - Dual-phase quenching "DF Quench" *For more details, please refer to the PDF document or feel free to contact us.

  • Other surface treatment equipment
  • Surface treatment contract service
  • Metal Heat Treatment

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Comparison of test results between carburized and untreated pure titanium products.

Comparison of test results between carburized and untreated pure titanium products.

Introduction of changes in the metal structure of pure titanium due to carbonitriding treatment and X-ray diffraction results.

At Kyowa Heat Treatment Co., Ltd., we perform "metal heat treatment using vacuum carburizing," which achieves stable surface hardness in a short time. In addition to improving product lifespan, we can also realize processing that is difficult with gas carburizing. This document includes a comparison of test results between carburized pure titanium and untreated samples. [Test Contents] ■ Pure titanium was cut, resin-embedded, polished to a mirror finish, and etched. → A 0.5% hydrofluoric acid solution was used to reveal the metal structure, which was then observed and photographed using a metallurgical microscope. ■ Pure titanium was subjected to ultrasonic cleaning with acetone before testing. → X-ray diffraction measurements were conducted using an X-ray diffraction device (XRD). *For more details, please refer to the PDF document or feel free to contact us.

  • Surface treatment contract service
  • Metal Heat Treatment

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Marubishi Electronics Co., Ltd. Business Introduction

Marubishi Electronics Co., Ltd. Business Introduction

JISQ9100:2009 certified company! Leave it to the experts in metal heat treatment.

Marubishi Electronics Co., Ltd. offers metal heat treatment processing. We accommodate everything from precision parts to large items over 10 tons. We also handle single items and lot management with short delivery times. While constantly honing our technology, we utilize traditional techniques and advanced technologies to meet our customers' needs, so please feel free to consult us when you have requests. 【Business Items】 ■ High-frequency hardening and carbon hardening ■ Carbon nitriding hardening ■ Gas soft nitriding and gas nitriding ■ Bright hardening ■ Frame hardening and solidification, etc. *For more details, please download the PDF or feel free to contact us.

  • Steel
  • Other metal materials
  • Other machine elements
  • Metal Heat Treatment

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Introduction to the "Heat Treatment Technology" Materials

Introduction to the "Heat Treatment Technology" Materials

A document featuring heat treatment technology that breathes life into metals!

This document provides an overview of heat treatment technology offered by the Japan Metal Heat Treatment Association. Metal heat treatment is a processing technology that improves the properties of metal materials through a combination of heating and cooling without changing the shape of the product. Among the metal materials subjected to heat treatment, iron has been the most widely used, and non-ferrous alloys (such as aluminum alloys and titanium alloys) are also subjected to heat treatment. [Contents] ■ Types of metal heat treatment processes - General heat treatment (heat treating the entire product) - Surface heat treatment (heat treating only the surface) ■ Heat-treated products commonly used in automobiles ■ Everyday heat-treated products *For more details, please download the PDF or feel free to contact us.

  • Contract manufacturing
  • Processing Contract
  • Metal Heat Treatment

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[Proposal / Solution Case] Product Distortion

[Proposal / Solution Case] Product Distortion

Case Study 2: "Improving mechanical properties leads to strain."

We would like to introduce a case study of metal heat treatment that our company proposed. The inquiry was about preventing significant "distortion" in parts with uneven wall thickness, which was causing residual scale during subsequent machining processes. The greater the temperature difference within the product during heating and cooling, the more significant the "distortion" that occurs after heat treatment. Our company ensures that the entire product is uniformly heated and cooled by aligning and setting the products for heat treatment, whether in continuous furnace processing or batch furnace processing. [Case Study] ■ Issue Significant "distortion" in parts, leading to residual scale during subsequent machining processes. ■ Solution Conducting heat treatment by aligning and setting the products to ensure uniform heating and cooling of the entire product. *For more details, please feel free to contact us.

  • Processing Contract
  • Other machine elements
  • Metal Heat Treatment

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Logic processing

Logic processing

It is our unique technology that bridges the gap between "soft nitriding" and "carburizing hardening (carburizing nitriding)."

This technology is an ultra-low temperature carburizing and nitriding quenching process that achieves both low distortion and high strength through our unique atmosphere/temperature control technology. It has lower distortion than carburizing and nitriding and higher strength than soft nitriding. It allows for a significant increase in strength compared to conventional soft nitriding. It addresses issues such as insufficient strength in conventional soft nitriding and excessive thermal distortion in conventional carburizing (carburizing and nitriding). 【Features】 ■ Lower distortion than carburizing quenching ■ Higher strength than soft nitriding ■ Improved internal hardness ■ Capable of bridging the gap between "soft nitriding" and "carburizing quenching (carburizing and nitriding)" ■ Achieves both low distortion and high strength *For more details, please refer to the PDF document or feel free to contact us.

  • others
  • Metal Heat Treatment

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LODIC (Logic) processing

LODIC (Logic) processing

Lower distortion than carburizing nitriding, higher strength than soft nitriding! Ultra-low temperature carburizing nitriding hardening treatment.

LODIQ (Low Distortion Quenching) is our unique surface heat treatment method that fills the gap between "soft nitriding" and "carburizing hardening (carburizing nitriding)." It addresses issues such as "normal soft nitriding does not provide sufficient strength" and "normal carburizing (carburizing nitriding) results in excessive thermal distortion." Additionally, while maintaining the low distortion characteristics of LODIQ, we have achieved an increase in the strength of alloy steel with "LODIQ-AS," and we also offer "LODIQ-N," which allows for arbitrary changes in the compound layer composition to enable strengthening according to specific objectives. **Characteristics of LODIQ-AS** - Significantly reduces heating distortion and hardening distortion through ultra-low temperature treatment. - Increases resistance to temper softening of the re-surface, improving anti-seizing and anti-pitting properties. - Enhances effective hardened layer depth, internal hardness, and fatigue strength for low carbon steel LODIQ. - Enables the omission of finishing processes due to the suppression of abnormal grain boundary oxidation layers and the low distortion effect. *For more details, please download the PDF or feel free to contact us.*

  • Processing Contract
  • Metal Heat Treatment

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Minimal distortion, maximum material properties! Heat treatment in Osaka! [Vacuum Heat Treatment]

Minimal distortion, maximum material properties! Heat treatment in Osaka! [Vacuum Heat Treatment]

We specialize in the heat treatment of die steel for metal press molds, optimally controlling the heating and cooling processes to accommodate various shapes.

Since our establishment, we have specialized in the heat treatment of die steel for metal press molds, effectively controlling the heating and cooling processes to accommodate various shapes. We offer vacuum hardening that minimizes distortion in complex three-dimensional automotive molds while maximizing the material's properties. Additionally, our vacuum heat treatment furnace can manage the temperature distribution inside the furnace with extremely high precision, making it ideal for heat treatment of precision parts. Please feel free to contact us if you have any requests. If you need heat treatment in Osaka, the Kansai region, or the Kinki region, do not hesitate to reach out! 【Features】 ■ Minimal distortion ■ Achieves traceable heat treatment ■ Supports everything from large molds to precision parts ■ Capable of handling small lots (starting from one piece) ■ Short delivery times *For more details, please download the PDF or feel free to contact us.

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Marushin Manufacturing Co., Ltd.

Marushin Manufacturing Co., Ltd.

Specialized contractor for metal heat treatment and metal surface hardening.

We are specialists in metal heat treatment and metal surface hardening processes. If you have any issues related to metals, please feel free to consult us. Areas of Expertise: Various heat treatments for mass-produced items, heat treatments for precision tools and molds, heat treatments for precision small parts (e.g., 1mm x 1mm x 1mm or smaller), ion plating for high-load molds and low-temperature conditions. Products and Services: Vacuum heat treatment, general heat treatment, carburizing treatment, gas soft nitriding treatment, super nitriding treatment, MX treatment, ion plating treatment, MX-IP treatment, various brazing, machining. Main Processed Products: Automotive parts, precision parts for home appliances, office automation, and IT, tools and molds, welding units for welding robots, torque drivers.

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Okaya Heat Treatment Co., Ltd.

Okaya Heat Treatment Co., Ltd.

Vacuum treatments such as hardening, tempering, and annealing.

Vacuum treatments such as quenching, tempering, and annealing, as well as sub-zero treatments, are available. We also perform vacuum carburizing, vacuum carburizing nitriding, shot peening, and surface treatments like coating (ion plating), assisting in improving the quality and extending the lifespan of various products such as molds, cutting tools, automotive parts, and machine components. Areas of Expertise: - Bright quenching that minimizes dimensional changes - Vacuum carburizing and vacuum carburizing nitriding that enable uniform carburizing of complex shapes without surface grain boundary oxidation or carburizing unevenness - Coatings with rich film properties enhanced by ON lapping treatment for improved smoothness and adhesion - Integrated processing from heat treatment to surface modification and surface treatment, improving toughness, wear resistance, release properties, corrosion resistance, and sliding properties, thereby extending the lifespan of molds and cutting tools through ON treatment Product Offerings: Metal heat treatment (vacuum heat treatment), sub-zero treatment, vacuum carburizing and vacuum carburizing nitriding, coating (ion plating), ON treatment, precision shot peening, lapping treatment.

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TONEZ Corporation

TONEZ Corporation

Heat treatment specialist

Over a century of dedication to heat treatment. The technology and quality we have built at TONEZ have been pursued since our founding in 1909, specializing in the heat treatment of metals. Utilizing the technical skills we have honed over many years, we are now proud to receive solid evaluations across a wide range of fields, from automotive parts to precision small components, large materials measuring over ten meters in length and weighing several tons, and even aerospace components that require extremely high precision. In terms of quality, we have obtained "ISO 9001" and "JIS Q 9100" certifications, establishing a world-class quality management system.

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Sakurai Kousan Co., Ltd. Company Profile

Sakurai Kousan Co., Ltd. Company Profile

A large furnace capable of handling various shapes and materials for heat treatment has been installed. For finished parts, a vacuum furnace with pressurized gas quenching and a high-performance non-oxidizing furnace are available.

Sakurai Kousan consistently pursues "high precision, high quality, low cost, and short delivery times" based on the heat treatment technology and know-how cultivated over many years of tradition. We respond to increasingly complex and diverse customer needs to the fullest extent. We have installed large furnaces capable of heat treatment for various shapes and materials, including a mass production continuous furnace that accommodates round steel bars up to 12 meters in length, and large items weighing up to 5 tons, as well as small items measured in grams. We are always looking to the future of metal heat treatment and continue to be at the forefront of technology and equipment. Additionally, in 2006, we simultaneously acquired ISO 9001 and ISO 14001 certifications. 【Product Offerings】 ■ General Heat Treatment: Hardening and Tempering, Annealing, Normalizing, Spheroidizing Annealing, Solution Treatment, Carburizing Hardening and Tempering, Gas Nitriding, Carburizing Nitriding, Vacuum Hardening, Vacuum Annealing, Oxidation-Free Annealing and Normalizing ■ Straightening (Distortion Removal) ■ General Materials: Round Steel, Shaped Steel, Pipes, Coils, Cast and Forged Steel Products, High Alloy Steel ■ General Products: Molds, Automotive Parts, Construction Machinery Parts, and Other Machined Parts *For more details, please refer to the related links or feel free to contact us.

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From structural special steel to nuclear-related materials, we can handle a variety of metal heat treatments.

From structural special steel to nuclear-related materials, we can handle a variety of metal heat treatments.

Establishing a processing capacity of 100 tons per day! With over 90 years of experience and our unique heat treatment technology, we can offer proposals and responses tailored to various needs.

At Sakurai Kousan, we conduct general metal heat treatment processing. In our headquarters factory and materials division, we have a wide range of equipment, including continuous quenching furnaces for round bars and tempering furnaces with excellent temperature distribution that use city gas as a heat source, as well as batch-type annealing and normalizing furnaces, quenching furnaces, and solution treatment furnaces for stainless steel. We are capable of handling a variety of heat treatments, from structural special steels to nuclear-related materials, and we also flexibly accommodate heat treatment for not only round bar materials but also small forged items such as screws and bolts. Additionally, we actively promote the rationalization and acceleration of our production system, with advancements in automation. Our Arako factory, which operates 24 hours a day, meets mass production needs and has established a processing capacity of 100 tons per day. With a continuous heat treatment furnace measuring 38 meters in length, we can process round bars up to 8 meters long under various conditions, including annealing, spheroidizing annealing, and normalizing. Furthermore, we utilize state-of-the-art batch-type quenching and tempering furnaces to accommodate products that require very stringent temperature control, such as large molds and forged steel components related to oil drilling. *For more details, please download the PDF or contact us.*

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