Local heating for processing complex shapes. Suitable for small-batch production of various types.
By applying high-temperature flames such as oxy-acetylene flames to locally heat the surface of steel parts, it is less affected by the shape of the workpiece. Skilled craftsmen accurately control the temperature using the color of the flame. Additionally, it is economical because it does not require fixtures or coils like high-frequency heat treatment (quenching) for the same localized heating process. ● It is used for processing complex machined parts that cannot be handled by high-frequency quenching. ● We conduct thorough prior discussions and perform heat treatment suitable for the material. ● It is economical because it does not require the cost of manufacturing special fixtures.
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basic information
Flame hardening is a heat treatment process that uses a burner to blow flames onto the surface of a workpiece, heating it and then rapidly cooling it to harden it. The flames used can be from an oxygen-acetylene flame, among others. The heating methods include the stationary method, which involves fixing the position and overheating a specific area; the rotary method, which heats the workpiece along its circumference while rotating; and the progressive rotary method, which heats the entire workpiece gradually without moving the nozzle in a straight line.
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Applications/Examples of results
Benefits of Flame Hardening ● Improved Wear Resistance Only the necessary parts or surfaces can be hardened. ● Improved Fatigue Resistance Since the center (inner part) is not hardened, high fatigue strength is achieved due to the distribution of compressive stress.
Detailed information
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Frame Hard
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Frame hard
Company information
Heat treatment deals with natural phenomena and imparts the desired functions to steel. Since we cannot change the natural phenomena themselves, the success of heat treatment relies entirely on what happens "before heat treatment." At Mutou Industries, we emphasize education based on "knowledge-based experience," demonstrating our capabilities in hypothesis formulation, proposal-making, and responsiveness. Headquarters and Factory: Yamato City, Kanagawa Prefecture Tokai Office: Fuji City, Shizuoka Prefecture Tohoku Office: Kitakami City, Iwate Prefecture Special Class Metal Heat Treatment Technicians: 2 First Class Metal Heat Treatment Technicians: 15 Second Class Metal Heat Treatment Technicians: 8 Third Class Metal Heat Treatment Technicians: 2 Second Class Metal Materials Testing Technicians: 2 (as of February 2024) We collaborate with processing partner companies to provide consistent support from machining to heat treatment. If you provide us with the drawings, we will ensure the quality after heat treatment in collaboration with the machining industry. We will enter into a Non-Disclosure Agreement (NDA) as necessary.
