Compared with steel shot and stainless steel shot, the diameter of glass beads can be less than 0.15mm.
Steel shots and stainless steel shots are widely used in the surface treatment of metal shot blasting and some larger parts.
Glass beads are more suitable for precision castings and non-ferrous metal devices.
Glass beads can be produced to less than 0.05mm in non-ferrous metal devices of precision casting machines. The appropriate particle size model and the contact area of the parts are small, it is not easy to damage the surface of the parts, the stress relief is more uniform, and the matt treatment effect is better. The steel shot will deform the parts and leave traces and eliminate excessive stress.
Compared with the angular abrasive such as crushed glass, garnet sand and quartz sand, sandblastting glass beads also have the advantage of not being able to replace each other. Because of the smooth surface of the glass beads, after shot peening, few traces are left on the surface of the industrial device, which has a long-term unchanged effect. The angular abrasives are generally irregular or have corners, regardless of the size of the particles, basically have some damage to the sprayed workpiece, and some traces will appear under the microscope, which is easy to cause surface pollution and corrosion, and it is difficult to achieve long-term effects.
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