大理石平臺表面的質量和精度介紹

發布時間：2019-10-19

　　下面來(lai)為大家(jia)介紹一下大理石平(ping)臺表面的質(zhi)量和精(jing)度，希望(wang)能夠(gou)幫到大家(jia)。

　　大理(li)石平臺表面的(de)質量和(he)精(jing)度(du)以下分為(wei)三(san)點：

　　1、細刮時(shi)應該留意溫度的變(bian)化，假如鑄(zhu)鐵(tie)(tie)平(ping)臺(tai)(tai)的熱處理做的很(hen)好，室溫變(bian)化不(bu)大，那么鑄(zhu)鐵(tie)(tie)平(ping)臺(tai)(tai)基(ji)本(ben)不(bu)會產(chan)生(sheng)變(bian)形，但假如平(ping)板臺(tai)(tai)的某一部門(men)被太陽(yang)光直接曬著，或者四周有火爐等熱源，那么鑄(zhu)鐵(tie)(tie)平(ping)臺(tai)(tai)就會產(chan)生(sheng)變(bian)形，細刮的目的在于(yu)增加表(biao)面(mian)精度，對尺寸的影響很(hen)小，所(suo)以要(yao)留意刃口(kou)的鋒利光滑(hua)，并跟鑄(zhu)鐵(tie)(tie)平(ping)臺(tai)(tai)傾角成5°。

　　2、刮研(yan)的(de)點越多，刀跡應越小，吃刀也較輕，但(dan)也不(bu)(bu)能(neng)太輕，不(bu)(bu)然刮研(yan)點不(bu)(bu)深，顯示(shi)不(bu)(bu)顯著，而且(qie)點輕易(yi)磨掉，一般在0.003mm左(zuo)右(you)。

　　3、刀(dao)(dao)跡要小(xiao)(xiao)，約3mm寬、6mm長(chang)，每刀(dao)(dao)都應該在點(dian)(dian)(dian)(dian)(dian)上，先在點(dian)(dian)(dian)(dian)(dian)前面落刀(dao)(dao)，在點(dian)(dian)(dian)(dian)(dian)中間(jian)用力下壓，過點(dian)(dian)(dian)(dian)(dian)抬起，刮(gua)時(shi)要按點(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)大(da)(da)(da)小(xiao)(xiao)，亮暗而分輕(qing)重，大(da)(da)(da)的(de)(de)(de)亮點(dian)(dian)(dian)(dian)(dian)全刮(gua)，中等點(dian)(dian)(dian)(dian)(dian)中間(jian)挑開，分成兩(liang)個(ge)小(xiao)(xiao)點(dian)(dian)(dian)(dian)(dian)，小(xiao)(xiao)的(de)(de)(de)斑點(dian)(dian)(dian)(dian)(dian)可以留著(zhu)不刮(gua)，小(xiao)(xiao)的(de)(de)(de)亮點(dian)(dian)(dian)(dian)(dian)輕(qing)輕(qing)刮(gua)掉，這樣大(da)(da)(da)刮(gua)研(yan)點(dian)(dian)(dian)(dian)(dian)變成小(xiao)(xiao)點(dian)(dian)(dian)(dian)(dian)，中刮(gua)研(yan)點(dian)(dian)(dian)(dian)(dian)分成兩(liang)個(ge)小(xiao)(xiao)點(dian)(dian)(dian)(dian)(dian)，原來的(de)(de)(de)小(xiao)(xiao)刮(gua)研(yan)點(dian)(dian)(dian)(dian)(dian)變成大(da)(da)(da)點(dian)(dian)(dian)(dian)(dian)，原來沒有刮(gua)研(yan)點(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)地(di)方(fang)也會(hui)泛起點(dian)(dian)(dian)(dian)(dian)。