不銹鋼管坯料穿(擴)孔時玻璃潤滑劑的應用
不銹鋼管坯(pi)料在立式穿孔(kong)機上穿(擴)孔(kong)時,玻(bo)璃潤滑劑(ji)按一定的量以(yi)粉狀(zhuang)(zhuang)或(huo)杯(bei)狀(zhuang)(zhuang)制(zhi)品(pin)或(huo)纖維制(zhi)品(pin)拖加到實(shi)心(xin)坯(pi)或(huo)經預鉆孔(kong)坯(pi)料的端面上,用(yong)以(yi)降低坯(pi)料金屬與穿(擴)孔(kong)頭之間的摩擦,并防止變(bian)形工(gong)具的受熱。為了得(de)到優質內表面的穿(擴)孔(kong)空心(xin)坯(pi),減(jian)小穿(擴)孔(kong)頭的磨損,粉狀(zhuang)(zhuang)玻(bo)璃潤滑劑(ji)應以(yi)...