Our business
Tamayakin offers heat treatment services on a contract basis at two plant locations; Tokyo (Japan) and Dalian (China).
At both locations, we offer heat treatment for a variety of processes, ranging from general machine parts to aircraft parts, under high-level quality assurance system.
Tamayakin’s plant in Japan deals with a variety of process needs, ranging from small lots and prototype to high-volume production while the plant in China excels at mass production.
What Tamayakin can do
Our business
Tamayakin offers heat treatment services on a contract basis at two plant locations; Tokyo (Japan) and Dalian (China).
At both locations, we offer heat treatment for a variety of processes, ranging from general machine parts to aircraft parts, under high-level quality assurance system.
Tamayakin’s plant in Japan deals with a variety of process needs, ranging from small lots and prototype to high-volume production while the plant in China excels at mass production.
Heat treatment services
offered by Tamayakin
There is a large variety of metals around us to play different roles and support our life and society.
In recent years, Tamayakin has focused on heat treatment on aircraft parts, becoming one of the hard-to-find heat treatment plants in the world that has acquired a number of certificates for aircraft parts, including a worldwide certificate, Nadcap.
By virtue of the sizable human resources in the quality assurance system and R&D departments that are almost comparable with the number of plant workers, we enjoy a favorable reputation of the quality of our products, technology, and an ability in new business development.
Heat treatment services offered by Tamayakin
State-of-the-art Distortion Reduction Processing
At TAMAYAKIN, we not only perform ordinary heat treatment, but also distortion reduction treatment using state-of-the-art technology. Distortion reduction technology is essential to the manufacture of high quality parts, as distortion can change the dimensions and shape of a part, adversely affecting its function and performance.
Nickel alloyed with different metals depending on the purpose, such as corrosion resistance, workability, and heat resistance
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Copper alloy facilitating heat transfer, including yellow brass, bronze, and phosphor copper, and those used as anticorrosion material
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Aluminum alloy added with different types of element to improve the properties
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Titanium alloy added with different types of element to enhance the merit and improve the demerit of titanium
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State-of-the-art Distortion Reduction Processing
At TAMAYAKIN, we not only perform ordinary heat treatment, but also distortion reduction treatment using state-of-the-art technology. Distortion reduction technology is essential to the manufacture of high quality parts, as distortion can change the dimensions and shape of a part, adversely affecting its function and performance.
quenching
A process in which nitrogen is solidly dissolved in place of carbon before quenching, which allows quenching at a lower strain than carburizing or carbonitriding.
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Aiming for low distortion by controlling the optimum quenching rate with varying oscillation conditions.
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A process that allows acetylene gas to adhere to the surface of a product and diffuse through osmosis the carbon in the acetylene gas on the surface of the product.
See more detailnitriding
A treatment in which a sulfurized layer is formed over a nitrided layer. The formation of a lubricating nitrocarburizing layer improves wear resistance, seizure resistance, galling resistance, fatigue resistance, corrosion resistance, and other properties.
See more detailcarburizing
and nitriding
Low temperature allows nitriding at a low temperature range that does not form chromium carbides and hardens without affecting the passive film and maintaining corrosion resistance.
See more detailTamayakin supports
worldwide machine
industry by providing
heat treatment services
Tamayakin is a heat treatment company independent from any particular corporations or industries. In addition, the company has established “multiproduct small-lot production system” to accommodate flexibly our clients’ various needs. This way, we have expanded the scope of our business activities over the years.
Today, Tamayakin is contributing to the business development of companies in main industries, including aviation, space, and defense, as well as precision machinery, electric components, and racing car accessories manufacturers.
ndustrial sectors Tamayakin has been involved
Space
Tamayakin has offered heat treatment to serve in the space development business since the acquisition of the special process certificate of heat treatment on space hardware components in the 2000s. In 2009, the company acquired JIS Q 9100, requirements for aerospace defense quality management system. A high level of quality management capability is demanded for space hardware, such as rockets and satellites, just as it is required for aircrafts. Thus, it is required to provide heat treatment strictly complying with the heat treatment specifications (standard) presented by a manufacturer. Tamayakin is capable of satisfying the standard only because it is a Nadcap-certified company, specializing in special process.
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medical care
Since the 2000s, Tamayakin has offered heat treatment services for medical equipment parts that use metals. The company has made a lot of achievements in heat treatment services, especially for metals implanted in human body. We deal with not only stainless steel, but also various types of materials, including titanium alloy. We have confidence in fulfilling the strict requirements for the quality and traceability since the company has been through many challenges in the aerospace defense industry. We are committed to fulfill our responsibility to take care of people’s lives in the medical industry in the same way as in the aerospace industry. In addition, we are prepared to develop a process design for mass production, as needed, in consultation with a client.
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defence
Tamayakin has offered heat treatment services since it acquired the special process certificate of heat treatment on space hardware components in the 2000s. In 2009, the company acquired JIS Q 9100, requirements of aerospace defense quality management system. A high level of quality management capability is demanded for defense aircrafts, such as fighters, transport aircrafts, and defense helicopter as well as firearms including machine guns, just as it is required for rockets and civilian airplanes. Thus, it is required to provide heat treatment strictly complying with the heat treatment specifications (standard) presented by a manufacturer. Tamayakin is capable of satisfying the standard only because it is a Nadcap-certified company, specializing in special process. Moreover, we are prepared to accept urgent requests with super quick delivery to support the needs of the Japanese government.
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energy
Tamayakin’s heat treatment technologies are used in energy equipment such as steam turbine for power generation, based on our experience in offering superalloy heat treatment applied to aircraft engines. We are proudly supporting the social infrastructure because that is completely consistent with the first in the list of our company’s goals, “We support the basis of the machine industry”. We dedicate all our strength to supporting the Japanese and the worldwide energy infrastructure.
As required, we are prepared to recommend higher quality heat treatment services based on our experience in the aircraft engine parts.
Aviation
Starting with the acquisition of JIS Q 9100 in 2009, our company has more than 10 years of experiences and a lot of achievements in heat treatment in civilian aircrafts business, including the acquisition of Nadcap in 2012 and Rolls-Royce certification in 2017.
Our product line includes the treatment of engine parts (fan case parts, shaft parts, etc.) as well as accessories (hydraulic components, etc.), passenger cabin equipment (galley, lavatory, etc.), and aircraft parts. The materials we deal with include iron, stainless steel, titanium alloy, nickel alloy, and aluminum alloy. We handle a single item for a development project as well as mass production and MRO. There is a variety of sizes we deal with from palm-sized items to large items of over two meters. As seen above, Tamayakin is capable of dealing with many different materials, quantities, and sizes in our heat treatment process.
automobile
Currently, our company offers heat treatment services for mass-produced automobile parts at a plant in China, TAMAYAKIN (Dalian) Co., Ltd. In 2023, when the construction of a new plant (in Musashimurayama City, Tokyo) is completed, we will introduce an automated line to accommodate mass production of automobile parts. In addition, in order to fulfill the carbon neutrality demand in future, we will make it possible to offer technologies, including vacuum carburizing and sulfonitriding, that contribute to create low-carbon society, combined with our original heat treatment technology, aiming to achieve the highest technological level ahead of the worldwide trend. Moreover, we strive to realize low-cost heat treatment services under the mass production system while introducing the quality assurance knowhow developed in our experiences in the aviation industry.
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Others
Since foundation, Tamayakin has offered heat treatment services for parts and components that play important roles in a variety of industries “to support the basis of the machine industry” as our mission. We put great value on “honesty and integrity” that are cleverly expressed in what our founder used to say all the time, “Iron is honest and straightforward”. We are grateful for the requests for consultation, compliments and even complaints from all our clients to give us opportunities to grow together with them as a company.
That is the very reason why Tamayakin has grown to be the company capable of offering the services with high quality assurance, in different volume from single item to mass production, with a variety of sizes from extremely small to very large, with extensive heat treatment processes for many different types of metal.
Reliability of
Tamayakin’s
heat treatment services
Heat treatment is one of the important processes that could adversely affect human life depending on the product quality. Therefore, this process is designated as a “special process” that requires validation of the process. Moreover, acquisition of certificates through process check is demanded in many occasions. Especially in manufacturing of aircraft parts, the certificates are considered as very important part in the evaluation.
Tamayakin has acquired many different certificates that are required in the aircraft industry.
Major certificates acquired from external agencies
Acquired 1999
ISO 9001 quality management system
Obtained in 2009
JIS Q 9100 Quality management system for aerospace
Obtained in 2012
Nadcap International Aerospace Industry Special Process Certification
Obtained in 2016
Heat treatment of Rolls-Royce engine components
Initial acquisition of ISO14001
2015 Environmental management system in 2010
Initial acquisition of ISO9001
2015 Quality management system in 2010
Initial acquisition of IATF16949
16949：2016 Quality management system for automobile industry in 2010
Initial acquisition of AS 9100D
Quality management system for aerospace in 2019Initial acquisition of Nadcap
Heat Treating Special process certificate for international aerospace industry.
