设备介绍：

高速喷射的弹丸颗粒连续不断撞击齿面的过程，如同无数小锤对齿面进行锤击，使齿面产生极为强烈的塑性形变，使 齿面产生一定厚度的冷作硬化层，这一硬化层即齿面的强化层，由此产生强化及表面压应力，达到提高齿轮疲劳强度和提 高使用寿命的一项表面冷处理强化技术。喷丸强化也称之为强化喷丸或受控喷丸。

齿轮喷丸强化是一种受控的喷丸技术，是将高速的弹丸流连续不断撞击齿面，使齿面在弹丸流的撞击作用下发生塑性 变形(塑性变形层的厚度通常处于0.1-0.8mm之间)。这一影响延伸到齿轮材料的表层，在表层下产生较高的残余压应 力、加工硬化和组织细化等有利的变化，抵消不良的拉应力，该残余压应力延缓了的疲劳断裂的形成，有效的提高了齿轮 的疲劳强度，延长了齿轮的使用寿命。

The high-speed projectile particles continuously impact the tooth surface, just like countless small hammers hitting the tooth surface, so that the tooth surface produces extremely strong plastic deformation, so that the tooth surface produces a certain thickness of cold hardening layer, which is the hardening layer of the tooth surface, resulting in strengthening and surface compressive stress. A surface cold treatment strengthening technology to improve fatigue strength and service life of gears. Shot peening is also known as enhanced shot peening or controlled shot peening.

Gear shot peening is a controlled shot peening technology, which is to continuously impact the high-speed projectile flow on the tooth surface, so that the tooth surface will undergo plastic deformation under the impact of the projectile flow (the thick¬ness of the plastic deformation layer is usually between 0.1-0.8mm). This effect extends to the surface of the gear material, where higher residual compressive stress, work hardening and microstructure refinement and other favorable changes are generated under the surface, which offset the undesirable tensile stress. The residual compressive stress delays the formation of fatigue fracture, effectively improves the fatigue strength of the gear and prolongs the service life of the gear.