Its principle is adding the metal powder into the resin binder as addition, then electrolyzing after addressing the wheel, so that the metal content can be dissolved and the pinholes are formed.

• 其原理是把金属粉末作为添加剂混入到树脂结合剂中,在修整砂轮后进行电解处理,使其表层的金属成分溶解,形成气孔。