第一鋼業 List of Products and Services

【Machining Equipment】 We have machining equipment capable of producing metal cutting tools up to 6 meters in length, with a weight capacity of approximately 2.5 tons! 【Grinding Equipment】 We possess equipment that can manufacture metal cutting tools longer than 5 meters and side trimmers with a diameter of φ1500, and we can also grind tools exceeding 6 meters! We can perform grinding with dedicated grinding machines or manual polishing. The weight capacity is approximately 2.5 tons. 【Heat Treatment Equipment】 We have various furnaces and devices, including pit furnaces (vertical type), cart furnaces, and batch furnaces (horizontal type). Naturally, we are a group of specialists that can provide the best heat treatment processing, including total solutions that encompass processing methods before and after heat treatment. 【Our Features】 ■ Capable of processing and heat treatment of long items (6000mm) ■ Various heat treatment options available ■ Equipped with salt bath facilities (Ministry of Defense certified factory) ■ Comprehensive support from material procurement to completion * Naturally, we are a group of specialists that can provide the best heat treatment processing, including total solutions that encompass processing methods before and after heat treatment. For more details, please refer to the related link page or feel free to contact us.

• Incinerators and incinerators

In our company, to meet our customers' quality requirements, we have been conducting company-wide activities to study the rationalization and standardization of work, as well as the improvement of processing technology, and have successfully applied these findings to actual on-site operations. Additionally, we regularly hold meetings with steel manufacturers to exchange information on material properties, new theories of heat treatment processing, suitable heat treatment plans, new equipment, and deepen our research. 【Inspection Equipment (Excerpt)】 ■ Rockwell hardness tester ■ Shore hardness tester ■ Vickers hardness test ■ Micro Vickers hardness tester ■ Brinell hardness tester *For more details, please refer to the related links page or feel free to contact us.

• Other inspection equipment and devices
• Semiconductor inspection/test equipment

We would like to introduce our "shearing blades" that we handle. Starting with "block-making blades" such as slab shear knives and hot working build-up blades, we have a rich lineup including "thick plate blades," "hot-rolled blades," and "cold-rolled blades." Please feel free to contact us when you need assistance. 【Product Lineup】 ■ Block-making blades ■ Thick plate blades ■ Hot-rolled blades ■ Cold-rolled blades ■ Shape steel blades ■ Bar steel blades ■ Other blades and machine parts *For more details, please refer to the PDF materials or feel free to contact us.

• Plastic processing machines (cutting and rolling)
• Other cutting tools

Our company has built over half a century of achievements as a specialized manufacturer of cutting tools that support the processing of various materials, starting with the world-leading Japanese steel industry, and has established a strong reputation. Now, we are advancing research and development to open up the future of cutting tools with the theme of "cutting various materials." We are committed to meeting the needs of diverse industries, including the steel industry, non-ferrous metals, environmental equipment, food, paper, and more, by pursuing advanced material selection and creating high-precision, highly reliable products. We are confident that we will provide great satisfaction. *For more details, please refer to the PDF document or feel free to contact us.*

• Plastic processing machines (cutting and rolling)
• Other cutting tools

This document lists the heat treatment equipment of Daiichi Kogyo Co., Ltd. We introduce equipment used for "material heat treatment," as well as "salt heat treatment for tools and high-speed steel," and "product heat treatment." For more details, please download and view the catalog. 【Contents】 ■ Material heat treatment ■ Product heat treatment ■ Salt heat treatment for tools and high-speed steel ■ Auxiliary heat treatment equipment *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

"DS Hard" is a treatment for cutting tools that suppresses the formation of compound layers while maintaining chip resistance. A hard chipping layer exhibits high wear resistance. By adopting a low processing temperature, it is possible to reduce thermal distortion and chipping distortion. In addition, you can choose from options tailored to specific applications, such as "DS Hard-L" for wear resistance and "DS Hard-F" for hot forging molds. 【Features】 ■ Improved wear resistance ■ Enhanced seizure resistance and galling resistance ■ Minimal deformation and dimensional changes ■ Capable of chipping even with difficult-to-chip materials ■ By varying the concentration of N and S, it is possible to form composite surface layers according to application needs *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

Vacuum heat treatment is conducted in a vacuum atmosphere to avoid surface degradation during heating at high temperatures. It is suitable for heat treatment of machined molds, tools, and other items, as it allows for heat treatment with minimal finishing allowance. Our company offers various heat treatment options, including vacuum hardening, salt bath, and DS hard (nitriding treatment). **Features** - **Vacuum Hardening** - Maximum processing weight is 1000 kg for batch furnaces and 1500 kg for pit furnaces. - Heating can reach up to 1300°C. - **Salt Bath** - Items are heated by being immersed in molten salt. - Various treatments can be performed, from small individual items to larger ones. - **DS Hard** - A surface modification furnace that processes items in their final finishing state (sulfur immersion furnace). - Extends the lifespan of molds, tools, and more. *For more details, please refer to the PDF document or feel free to contact us.*

• Processing Contract
• Surface treatment contract service

Heat treatment of materials is conducted in an atmospheric environment. We can perform heat treatment on items weighing up to 10 tons. Typically, we heat treat with a finishing allowance, making it suitable for items such as mold materials and machine parts that require finishing after heat treatment. Correction using a 300-ton press is also possible. There are various types of heat treatment, including quenching and tempering (hardening), normalizing, and annealing. After heating, cooling is done using oil quenching, forced air cooling, or furnace cooling to impart the desired mechanical properties. 【Features】 - Heat treatment of materials is conducted in an atmospheric environment. - Heat treatment can be performed on items weighing up to 10 tons. - Correction using a 300-ton press is also possible. - After heating, cooling is done using oil quenching, forced air cooling, or furnace cooling to impart the desired mechanical properties. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Surface treatment contract service

Heat treatment of tools and molds is a crucial process that affects the performance and lifespan of products. To meet our customers' specifications, we select the most suitable heat treatment methods for the items and provide reliable heat treatment in accordance with the ISO 9001 management system. We will continue to accumulate daily experience and technology as a consulting company for heat treatment, making further efforts. 【Flow of the Heat Treatment System】 ■ Heat Treatment Design ■ Process Design ■ Heat Treatment Work ■ Quality Inspection ■ Shipment *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Surface treatment contract service

"DS Hard" is a general term for the chika treatment conducted by our company aimed at improving product lifespan. The characteristics change depending on the type of gas, concentration, and treatment time, but typically, among the sulfide layer creation treatments, the "DS Hard-L" for wear-resistant parts, "DS Hard" for cutting tools, and "DS Hard-F" for hot forging molds are widely performed. [Overview] ■ Effective treatment dimensions: Φ600×1200 ■ Maximum weight: 500kg *For more details, please download the PDF or contact us.

• Processing Contract
• Surface treatment contract service