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Latest update: 27/04/2017 14:11:28

KAMIJIMA HEAT TREATMENT CO., LTD.

As a metal heat treatment professional, we have also entered the aeronautical field.

We conduct metal heat treatment, metal surface modification treatment, and friction welding. We are a group of professionals, including four “Contemporary Master Craftsmen” and 10 expert metal heat treatment engineers as the leading technicians. We were the first in Japan to obtain JIS quenching/tempering certification. We obtained ISO 9001 and ISO 14001 certification in the very early days as a heat treatment specialist. Currently, we are qualified to receive orders for aerospace components as we have obtained JIS Q 9100 (Aerospace Quality Management System) and Nadcap (global certification for special processes of aerospace components).

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Other presentation

[Company strength]
A group of professionals, we have four “Contemporary Master Craftsmen,” who have received awards from the Ministry of Health, Labour, and Welfare, and 10 expert metal heat treatment engineers as the leading technicians. We provide customers with performance and quality that makes them proud of using our plant for heat treatment (JIS Q 9100 Quality Policy). We were the first in Japan to acquire JIS quenching/tempering certification and the first and second heat treatment company to acquire ISO 90001 and ISO 14001, respectively. Currently we are qualified to receive orders for aerospace components as we have obtained JIS Q 9100 (Aerospace Quality Management System) and Nadcap (global certification for special processes of aerospace components). We introduced a vacuum furnace for aerospace components in 2010.

[Business description]
Our scope of business includes:
1. Metal heat treatment (quenching and tempering of high-speed steel and martensitic stainless steel, spring steel, bearing steel, structural steel, carbon tool steel, and alloy tool steel; solution treatment of austenitic stainless steel; and aging treatment, subzero treatment and cryogenic treatment of age-hardened steel) and precision heat treatment testing
2. Metal surface modification treatment (TiN and TiCN coating treatment by ion plating, WPC treatment, gas soft nitriding treatment, stream treatment, and composite treatment)
3. Friction welding (friction welding of tool materials and mechanical components)


[Industry]
Metal heat treatment, metal surface modification treatment, and friction welding

[Strength of products/technologies]
While the tempering temperature for ordinary steels ranges from 800 to 1050°C, we excel at conducting special heat treatment that requires high-temperature heating at around 1,200°C. While unevenness in heating and cooling tends to occur for large products, our veteran workers have excellent know-how in high-precision heating and cooling to ensure longer service life than by other methods. Our salt bath heat treatment technique can accept materials as heavy as 500 kg in our largest furnace of 450 x 450 x 1,500 mm (depth). Our heat treatment by vacuum furnace can accept processed items having dimensions of 600 x 1,000 x 600 mm (height) in up to 6 bar nitrogen gas cooling.

[Representative's message]
We have highly skilled staff including “Contemporary Master Craftsmen” and constantly provide outstanding quality that fully satisfies the strict demands of customers. We have actively acquired various certifications ahead of competitors to ensure constant quality improvement, shorter delivery period and environmental response. Under the principle of never refusing an order, we do our best so that customers will turn to us for advice on any problems regarding steel, heat treatment, surface modification treatment or friction welding.

[Company structure for market development/overseas expansion]
Since 2007, we have employed five excellent skilled workers who used to work for major companies. Our specialties cover a wide range, from steel materials to automobiles and aircraft, and we have improved our ability to do business in English. Our internal organization allows us to handle inquiries in various fields from in and outside of Japan.



[Market share/Ranking]
We are the only company in Japan capable of conducting salt bath heat treatment of large products and thus we receive orders from all over the country.

[Awards and media coverage]
[Awards]
Excellent Award of the 3rd Monozukuri Japan Award and 2014 Diversity Management Selection 100

[Media]
“Japanese companies leading the world,” Airview, July 2013, Seibido Shuppan Co., Ltd.


[Authorization/Certification]
JIS Q 9100 (JIS Q 9001), ISO 14001, JIS B 6913
Nadcap


[Main Clients / Business History (domestic)]
OSG Corp. (cutting tools), NSK Ltd. (heat-resistant bearing components), KYB (aerospace components), Kobe Steel (heat treatment testing), JFE Steel (heat treatment testing), Nippon Steel & Sumitomo Metal (heat treatment testing), Daido Steel (test pieces), Nissan Motor (mold components), NHK Spring (heat treatment testing), Hitachi Metals (rolling rolls), Nachi-Fujikoshi Corp. (heat treatment testing), Honda Motor (heat treatment testing), Honda R&D (heat treatment testing), Mitsui Miike Machinery (mold components)

[Main Clients / Business History (overseas)]
DTR (South Korea, cutting tools)

This company is recommended by the following support organizations.

Kanto Head Office, SMRJ
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