中遠熱処理技研 List of Products and Services

In aluminum heat treatment, many engineers may be troubled by distortion and deformation. Our company's designed aluminum air-cooling solution heat treatment furnace cools the material with air after solution treatment, significantly reducing the amount of distortion. However, this means that "less distortion = slower cooling speed compared to water cooling," which can result in a slight decrease in hardness compared to water cooling. If hardness equivalent to that of water cooling is required even with air cooling, it is possible to prevent the decrease in hardness by increasing the amount of alloying elements such as Mg within the standard range.

• Vehicle body parts

Chuo Thermal Treatment Technology Co., Ltd. (Kakegawa City, Shizuoka Prefecture) obtained certification for the IATF16949 automotive industry quality management system in May 2024. IATF16949 is an international standard for quality management systems specifically tailored for the automotive industry, and in recent years, obtaining IATF16949 certification has been required for the manufacturing of automotive parts. The requirements are strict, and understanding the standard is challenging, making it difficult for small and medium-sized enterprises to achieve certification. However, we have managed to obtain the certification. We look forward to your requests for new quotations and changes to the processes of current flowing products.

• Engine parts

A metal heat treatment technician is a type of national certification under the skills certification system, with levels ranging from Grade 3, Grade 2, Grade 1, to Special Grade. To obtain the Special Grade, a minimum of 10 years of practical experience is required, and our company has 6 Special Grade metal heat treatment technicians. Our company offers a wide range of heat treatment services for non-ferrous metals such as steel, stainless steel, and aluminum, including carburizing quenching, vacuum heat treatment, nitriding, bright annealing and tempering, and aluminum heat treatment. A total of 30 metal heat treatment technicians are engaged in heat treatment operations on a daily basis. Based on the practical knowledge cultivated through our diverse heat treatment services and the advanced specialized knowledge supported by our heat treatment technicians, we can assist in solving the heat treatment issues faced by our customers. 【Heat Treatment Services】 ■ Carburizing Quenching ■ Vacuum Heat Treatment ■ Nitriding ■ Bright Annealing and Tempering ■ Aluminum Heat Treatment *For more details, please refer to the PDF document or feel free to contact us.

• Non-ferrous metals

Our company offers a wide range of heat treatment services for non-ferrous metals such as steel, stainless steel, and aluminum, including carburizing hardening, vacuum heat treatment, nitriding, bright annealing and tempering, and aluminum heat treatment. A number of skilled metal heat treatment technicians respond to heat treatment needs on a daily basis. We effectively utilize five ISO standards to provide better heat treatment processing for our customers, employees, and the global environment. We are currently working towards obtaining IATF16949 certification. 【ISO】 ■ISO9001: Quality Management System ■ISO14001: Environmental Management System ■JIS Q 9100: Aerospace Defense Quality Management System ■ISO45001: Occupational Health and Safety Management System ■ISO/IEC17025: Laboratory Accreditation *For more details, please refer to the PDF document or feel free to contact us.

• Non-ferrous metals

This document introduces metal heat treatment and is suitable for beginners, making it useful for new employee training. It includes sections such as "What is heat treatment?", "Basic conditions for heat treatment", "What is steel?", and "What are alloy elements?". It provides clear explanations using diagrams and tables. [Contents] ■ What is heat treatment? ■ Basic conditions for heat treatment ■ What is steel? ■ What are alloy elements? *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Heating device

Our company, a specialist in metal heat treatment processing, offers a "Heat Treatment Outsourcing Selection Service" to help companies that cannot find suitable outsourcing partners for heat treatment. Even when existing partners decline requests or urgent heat treatment is needed, we leverage our on-site experience and network to select the perfect company from nationwide providers for each project. We can also accommodate requests for processing under special conditions. 【Selection Examples】 - Selecting a provider skilled in mixed processing of small quantity parts - Handling processing requests in a one-stop manner and selecting a suitable provider for each product - Selecting providers capable of special condition heat treatments such as SCM × carburizing, SNCM × residual γ, A7050 × solution aging, and aluminum × air-cooled solution treatment *For more details, please refer to the materials. Feel free to contact us with any inquiries.

• Other contract services

Our company, a specialist in metal heat treatment processing, offers a "Heat Treatment Outsourcing Selection Service" that leverages our on-site experience and extensive network. "We've lost our heat treatment outsourcing partner due to business closure." "Our outsourcing partner has requested an increase in unit prices due to rising electricity and gas costs." "We want to supplement our production capacity temporarily due to increased production." "We've lost a technician knowledgeable in heat treatment due to retirement." We can address various challenges like these. 【Features】 ■ Proposals from professionals with extensive experience and know-how ■ Selection of heat treatment companies nationwide on behalf of processing manufacturers ■ Support for all types of heat treatment, including carburizing, vacuum, annealing, high-frequency, and aluminum *We are currently offering case studies for problem-solving! For more details, please check the PDF download. Feel free to contact us as well.

• Other contract services

At Chuo Thermal Treatment Research Institute Co., Ltd., we solve problems such as "I want to acquire knowledge of heat treatment as a technical professional" and "I would like to hold study sessions." We are currently offering a handbook that includes common issues encountered when requesting heat treatment and examples of solutions, free of charge! This is a must-see for those in the parts manufacturing field or engineers who are outsourcing heat treatment. 【Do you have any of these concerns?】 ■ Due to customer delivery deadlines, heat treatment is absolutely necessary on weekends or during long holidays... ■ I want to acquire knowledge of heat treatment as a technical professional and would like to hold study sessions... *Please download the PDF document to view the solutions.

• Other surface treatment equipment
• Processing Contract
• Other metal materials

At Chuoen Heat Treatment Research Institute Co., Ltd., we solve issues related to "heat treatment on-site and technology," such as "we want to incorporate heat treatment processes in-house in the future as a comprehensive manufacturer..." We are currently offering a handbook that includes common issues encountered when requesting heat treatment and case studies for free! This is a must-see for those in parts manufacturing and engineers who are outsourcing heat treatment. 【Do you have any of these concerns?】 ■ There is a product we want to launch overseas, but trying it out overseas takes time and costs... ■ We want to incorporate heat treatment processes in-house in the future as a comprehensive manufacturer... *Please download the PDF document to view the solutions.

• Other surface treatment equipment
• Processing Contract
• Other metal materials

At Chuo Thermal Treatment Research Institute Co., Ltd., we solve problems related to "production and manufacturing sites," such as "the lifespan of cutting tools is short..." We are currently offering a handbook that includes common issues encountered when requesting heat treatment and examples of solutions, free of charge! This is a must-see for those in parts manufacturing sites or engineers who outsource heat treatment. 【Do you have any of these concerns?】 ■ The lifespan of cutting tools is short... ■ I want to add partial processing to carburized parts, but they are too hard to work with... *Please download the PDF document to view the solutions.

• Other surface treatment equipment
• Processing Contract
• Other metal materials

At Chuo Thermal Treatment Research Institute Co., Ltd., we solve problems related to "inspection and microstructure observation," such as "microstructure observation takes about a week to complete..." We are currently offering a handbook for free that includes common issues encountered when requesting heat treatment and examples of solutions! This is a must-see for those in parts manufacturing and engineers who outsource heat treatment. 【Do you have any of these concerns?】 ■ Microstructure observation takes about a week to complete... ■ It's not heat treatment (like drying), but heat treatment manufacturers won't handle it... *Please download the PDF document to view the solutions.

• Other surface treatment equipment
• Processing Contract
• Other metal materials

At Chuoen Heat Treatment Research Institute Co., Ltd., we solve problems related to shot blasting, table shot processing, and barrel polishing, such as "It's aerospace parts, but if we don't process them at a low price, we won't make a profit..." We are currently offering a handbook for free that includes common issues encountered when requesting heat treatment and case studies of solutions! This is a must-see for those in the parts manufacturing field or engineers who outsource heat treatment. 【Do you have any of these problems?】 ■ The price of shot blasting and table shot processing is high, and the delivery time including heat treatment takes more than a week... ■ It's aerospace parts, but if we don't process them at a low price, we won't make a profit... *Please download the PDF document to see the solutions.

• Other surface treatment equipment
• Processing Contract
• Other metal materials

At Chuoen Heat Treatment Research Institute Co., Ltd., we solve problems such as "the production volume of parts requiring vacuum heat treatment has increased, but heat treatment costs have not decreased..." We are currently offering a handbook for free that includes common issues faced when requesting heat treatment and examples of solutions! This is a must-see for those in the parts manufacturing field or engineers who outsource heat treatment. 【Do you have any of these concerns?】 ■ SKD11 requires vacuum hardening... ■ Standards for hardening stainless steel SUS420J2 with hardness HRC40-50... ■ The production volume of parts requiring vacuum heat treatment has increased, but heat treatment costs have not decreased... *Please download the PDF document to view the solutions.

• Other surface treatment equipment
• Processing Contract
• Other metal materials

At Chuo Thermal Treatment Research Institute Co., Ltd., we solve problems related to "carburizing quenching," such as "there are few conditions for carburizing quenching" and "the price is high..." We are currently offering a handbook that includes common issues encountered when requesting heat treatment and examples of solutions, free of charge! This is a must-see for those in the parts manufacturing field or engineers who outsource heat treatment. 【Do you have any of these problems? (Some examples)】 ■ We are pressing SK85 plates and quenching them, but we want to improve the efficiency of the pressing process and reduce material costs... ■ We want to stand out even if the hardness of our carburizing quenching is the same as other companies... ■ After quenching and tempering S45C, we want to change the material from high-frequency quenching to S25C-S35C... *Please download the PDF document to see the solutions.

• Other surface treatment equipment
• Processing Contract
• Other metal materials

At Chuo Thermal Treatment Research Institute Co., Ltd., we solve issues related to "large variations in hardness during quenching and tempering..." and "bright quenching and bright tempering." We are currently offering a handbook for free that includes common issues encountered when requesting heat treatment and examples of solutions! This is a must-see for those in manufacturing and engineering who outsource heat treatment. 【Do you have any of these issues? (Some examples)】 ■ When carburizing and quenching cold-forged products, the grain size has coarsened and they cannot be used as products... ■ Although it is a material heat treatment for quenching and tempering, the quality does not allow for scratches or dents... ■ A 35 mm diameter shaft that was quenched and tempered has bent... *Please download the PDF document to view the solutions.

• Other surface treatment equipment
• Processing Contract
• Other metal materials

At Chuo Thermal Treatment Research Institute Co., Ltd., we solve your problems related to "aluminum heat treatment," such as "I only have a very small amount, but I want proper heat treatment that is inexpensive, quick, and suitable for the material..." We are currently offering a handbook that includes common issues encountered when requesting heat treatment and case studies, free of charge! This is a must-see for those in manufacturing sites or engineers who outsource heat treatment. 【Do you have any of these problems? (Some examples)】 ■ The aluminum product cover is thin, and when heat treated to T6, it warps significantly and goes out of tolerance... ■ I requested a temperature distribution measurement of 9 points for the aluminum heat treatment furnace, but it takes too long to deliver... ■ There is a large volume of aluminum heat treatment work, and I am concerned about the production capacity of specialized heat treatment companies... *Please download the PDF document to see the solutions.

• Other surface treatment equipment
• Processing Contract
• Other metal materials

The Heat Treatment Cost Reduction & Quality Improvement Handbook is a resource that addresses common issues encountered when requesting heat treatment, along with case studies for solutions. It features a total of 33 case studies across eight heat treatment patterns! This technical material is suitable for those in parts manufacturing and engineers who outsource heat treatment. 【Are you facing any of these issues? (Some examples)】 ■ You are pressing sheet metal and hardening it, but you want to make the pressing process more efficient and reduce material costs... ■ There is significant variation in hardness during quenching and tempering... ■ Due to the thinness of the product, heat treatment causes significant warping, resulting in deviations from tolerances... ★ The 2018 edition has been updated with additional photos and graph data, making it even easier to understand! *Please view the handbook via the "PDF Download" link below.

• Other surface treatment equipment
• Processing Contract
• Other metal materials

The "Vacuum Heat Treatment Technology" of Zhongyuan Heat Treatment Research Institute complies with AMS2750 and can meet the advanced quality requirements of the aerospace industry. With a workpiece capacity of 1400mm, we can handle long items that other companies cannot. 【Strengths / Benefits of Our Equipment】 ■ Introduction of a vacuum heat treatment furnace compliant with AMS2750! ■ The internal dimensions can accommodate lengths of "1400mm," which is outside the catalog specifications! ■ Heat treatment furnace class: 2 ■ Instrumentation type: A ■ Argon gas cooling support ■ Materials: Inconel 625/718/825, Stainless Steel 304/316/321/347, and others If you are looking for high-quality vacuum heat treatment technology, please feel free to contact us first. *You can download our equipment and company information from the link below.

• Heating device

Our company is equipped with 14 aluminum heat treatment furnaces, and we respond to various needs such as T6 solution treatment, aging hardening, and annealing in terms of quality, delivery time, and cost. We also offer intermediate finishing, dimensional inspection, and finishing by 10 skilled craftsmen, and we can perform air cooling and mist cooling for solution treatment, ensuring reduced distortion and handling prototypes. ★ We accept heat treatment work every day, so please feel free to contact us at any time. 【Features】 - One of the leading aluminum heat treatment facilities in Japan, performing AC2B, 4B, AC4C, 7N01, and ADC12 conditions daily. - Evening drop-off and next morning pickup are possible for each heat treatment condition. - We have a track record of 16,000 intermediate distortion corrections per month, handled by 12 craftsmen. - Submersion in water is possible within 15 seconds after solution treatment. - We can also accommodate temperature measurement with a short lead time. - Air cooling for aluminum solution treatment uses 300m3/min at double wind power without using water for cooling. - Mist cooling for aluminum solution treatment can handle aluminum alloy solution treatment with water mist cooling. - Aluminum sand casting is supported with sand casting for aluminum cores. *For more details, please contact us or download the catalog.

• Processing Contract
• Other metal materials

We have introduced a vacuum heat treatment furnace that complies with AMS2750, which has become the standard in the aerospace industry. Our "vacuum heat treatment" at Chuo Thermal Treatment Technology can accommodate furnace dimensions outside the catalog, with a length of up to 1400mm. We can handle various materials, including Inconel 625/718/825, stainless steels 304/316/321/347, and martensitic stainless steels. 【Features】 ■ Introduction of a vacuum heat treatment furnace compliant with AMS2750 ■ Heat treatment furnace class: 2 ■ Instrumentation type: A ■ Argon gas cooling support *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other metal materials

"Gas soft nitriding" is a metal heat treatment process that forms a nitrided layer by heating in an ammonia gas-based atmosphere furnace. With the introduction of nitriding sensors, it enables high-precision soft nitriding treatment through more refined control. For molds and precision parts, we implement heat treatment conditions that minimize dimensional changes every day. Drop-off in the evening and pick-up the next morning is possible. [Features] ■ Daily implementation of heat treatment conditions that minimize dimensional changes for molds and precision parts ■ Drop-off in the evening and pick-up the next morning is possible ■ Capable of handling small parts from 1g to molds ■ Control of NH3 flow with nitriding sensors ■ Heating in an ammonia gas-based atmosphere furnace to form a nitrided layer *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other metal materials

At the Chuo Yondan Heat Treatment Research Institute, there is a carburizing technology that achieves maximum hardness through post-process shot peening. In "Carburizing Quenching/Carburizing Nitriding/Luminescent Quenching," we pursue the appropriate hardness curve to realize the ideal carburizing quenching. By adding ammonia, the "Carburizing Nitriding Quenching," which performs carburizing and nitriding simultaneously, can achieve hardened layers even on raw materials such as SS400 and SPCC, providing excellent wear resistance. 【Features】 ■ Provides carburizing quenching for racing gears ■ Achieves the desired carburizing curve (total hardened layer depth T0.05 to 3.0) ■ Capable of magnetic particle inspection after quenching ■ Capable of masking to prevent carburizing ■ Capable of distortion correction and press tempering for shafts and thin-walled shapes *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Other metal materials

At the Chuoen Heat Treatment Research Institute, "Bright Annealing and Annealing" is achieved by processing in a reducing protective atmosphere, preventing the formation of oxidation scale during annealing and tempering. We can provide prevention of grain coarsening after carburizing of cold-forged products, with processing possible in the specified temperature range of 600°C to 950°C. We have 2 units of equipment, with internal furnace dimensions of height 150mm × width 700mm, and a mesh belt length of 22,500mm. 【Features】 ■ Manual arrangement and retrieval to effectively prevent scratches and dents ■ Processing in a DX-rich atmosphere, resulting in no oxidation scale ■ Processing possible in the specified temperature range of 600°C to 950°C ■ Prevents grain coarsening after carburizing when applied to cold-forged products ■ Capable of magnetic annealing and magnetic removal *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other metal materials