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　　一般軟密封球閥(fa)閥(fa)芯材料為不銹鋼，普通加(jia)工(gong)(gong)(gong)方法為圓車(che)或數控(kong)車(che)床車(che)削(xue)，一般尺寸(cun)要(yao)求不高(gao)，車(che)床就可以達(da)到(dao)尺寸(cun)要(yao)求，但是(shi)閥(fa)芯對光潔度要(yao)求較(jiao)高(gao)，一般采用車(che)削(xue)后(hou)(hou)磨(mo)(mo)削(xue)加(jia)工(gong)(gong)(gong)，磨(mo)(mo)削(xue)后(hou)(hou)拋(pao)(pao)光，工(gong)(gong)(gong)序(xu)多(duo)，質(zhi)量難(nan)(nan)以控(kong)制，例如車(che)削(xue)后(hou)(hou)，二次(ci)搬(ban)運，二次(ci)裝夾后(hou)(hou)，磨(mo)(mo)削(xue)，然(ran)后(hou)(hou)再次(ci)搬(ban)運、裝夾，拋(pao)(pao)光，以直(zhi)徑80毫(hao)米球閥(fa)閥(fa)芯為例，車(che)削(xue)耗時2到(dao)3分鐘，磨(mo)(mo)削(xue)耗時2到(dao)3分鐘，拋(pao)(pao)光耗時40分鐘，且拋(pao)(pao)光易造成工(gong)(gong)(gong)件(jian)圓度破壞，并且工(gong)(gong)(gong)件(jian)在不同工(gong)(gong)(gong)序(xu)間需(xu)要(yao)多(duo)次(ci)裝拆搬(ban)運，耗時費力，質(zhi)量難(nan)(nan)以保證(zheng)，同時拋(pao)(pao)光造成工(gong)(gong)(gong)作環境(jing)惡劣。

　　電(dian)致(zhi)(zhi)伸縮精整(zheng)設備加工(gong)(gong)球閥(fa)閥(fa)芯(xin)，在(zai)普(pu)通圓車(che)或者(zhe)數(shu)控車(che)床上(shang)，一次裝(zhuang)夾工(gong)(gong)件(jian)(jian)，就可以(yi)實現從(cong)毛(mao)坯件(jian)(jian)到成品工(gong)(gong)件(jian)(jian)的加工(gong)(gong)，首先用車(che)刀將工(gong)(gong)件(jian)(jian)車(che)到尺寸(cun)，以(yi)直徑80毫米球閥(fa)閥(fa)芯(xin)為例，毛(mao)坯件(jian)(jian)裝(zhuang)夾好后(hou)，粗車(che)與精車(che)可以(yi)一次完成，車(che)削后(hou)粗糙度值為Ra7到8微米左右，耗時2分鐘(zhong)，然(ran)后(hou)用電(dian)致(zhi)(zhi)伸縮精整(zheng)設備加工(gong)(gong)一遍，耗時2分鐘(zhong)，工(gong)(gong)件(jian)(jian)尺寸(cun)符合要求，光潔度達到Ra0.1微米以(yi)下。效率是傳統工(gong)(gong)藝的幾(ji)十(shi)倍。而且加工(gong)(gong)環境好，耗材幾(ji)乎為零，成本(ben)降低，質量明顯提高。