Surface Heat Treatment

Surface heat treatments are a group of metallurgical processes that focus on modifying the properties of a material’s surface layer while leaving the core unchanged. These treatments are applied to enhance surface hardness, wear resistance, corrosion resistance, and other specific characteristics.

Flame Hardening

Flame hardening is a distinguished method in the domain of heat treatments for steel components, including gears. The technique uses an oxy-fuel flame to selectively heat parts to their austenitizing temperature, followed by a quenching process.

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Carbon Restoration

Investment casting is method of production that allows for creation of parts with complex geometries that require little to no machining for them to be put into service. As the castings cool after pouring decarburization can occur at the part surface. Decarburization, frequently truncated to decarb, can lead to a range of negative consequences spanning from reduced wear to premature failure during service. The most common way to remediate this without the need for additional material removal is to perform a specialized form of heat treatment called carbon restoration.

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Carburizing

Welcome to our detailed exploration of the carburizing heat treatment process for machined gears, machined parts, and stampings. This transformative method offers technical benefits, especially for steel components, ensuring they’re primed for high-performance applications.

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Carbonitriding

Carbonitriding is a sought-after heat treatment process due to the significant enhancement to wear resistance, surface hardness, and other pivotal properties of steel components subject to this specialized form of heat treatment. At ThermTech, we leverage this process, especially for plain carbon steels, to ensure gears, machined parts, and stampings stand up to rigorous use.

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Nitriding

ThermTech is a pioneering figure in providing gas nitriding heat treatment for machined parts, stampings, and tooling. Gas nitriding, a heat treatment technique, introduces nitrogen into the surface layer of steel components using an ammonia gas atmosphere at elevated temperatures. It has emerged as an essential process, particularly for case-hardened machined components with wear surfaces.

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ThermTech—Experts in Austempering Stampings, Machined Parts, and Investment Castings

ThermTech, Inc. offers both small and large batch capabilities for austempering steel and iron investment castings. Between our neutral salt bath furnaces and our larger austempering furnaces, we have the capabilities to austemper a wide variety of stamping, machined components, and investment castings. We have run austempering on alloys from 1060 through 4340 to ductile iron machined parts.

Our dedicated team works with you to ensure we meet your specifications. Count on our decades of experience with hardening, tempering, surface heat treatments, vacuum treatments, and annealing. To learn more about our services, please contact us today.

Learn more about austempering and how ThermTech can serve you by watching these videos.

Request a free quote online or call us at 800-752-6917. You can also contact us online for all your austempering and heat treating needs.

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AWARDS & CERTIFICATIONS

ThermTech’s quality policy is ZERO DEFECTS for all customer products and in all quality management system activities. Through our efforts to continually improve the quality of the work we offer, we’ve been recognized as being able to meet the rigorous quality standards required by several of our major customers. ThermTech is certified for ISO 9001 and AS9100 in both Metal Heat Treat and Metal Finishing.