High energy beam heat treatment of roller seals is a local surface modification technology. The heat sources used include laser, electron beam, ion beam, electric spark, ultra-high frequency induction shock, solar energy and synchrotron radiation. Improve the fatigue strength of the workpiece.
一.高能束加熱屬非接觸加熱。熱影響區極小州苗木 保定通風管道 絲網立柱模具 尼龍輸送帶 保定空壓機 高碑店養老院；高能束的加熱和冷卻速度很快，熱應力很小，因此工件變形小。奧氏體長大及碳原子和合金原子的擴散受到抑制，
1、 High energy beam heating belongs to non-contact heating. The Heat-affected zone is very small; The heating and cooling speed of high-energy beams is very fast, and the thermal stress is very small, so the deformation of the workpiece is small. Austenite growth and diffusion of carbon and alloy atoms are inhibited,
2、 Due to the fast heating speed. An overview of refined and ultra refined organizations can be obtained. Due to the small interaction area of high-energy beams,
3、 The punishment for high-energy beam heat treatment relies on the workpiece's own cooling and quenching. The heat capacity of the metal itself is enough to quench the treated profile, ensure the completion of martensite transformation, and obtain cryptocrystalline martensite. Quenching can also suppress the precipitation of carbides, thereby reducing the impact of brittle phases.
4、 High energy beam heat treatment causes residual compressive stress in the metal profile. Therefore, the heating speed is fast and the cooling speed is also fast,
High power density and short action time. Its superheat and undercooling are greater than those of conventional heat treatment, and the overall hardness after treatment is 5-10HRC higher than that of conventional treatment without mechanical stress effect; Small beam spot of high-energy beam