劃線平臺人工刮研步驟需掌握
2014年02月19日
新聞詳情
劃線(xian)(xian)平臺(tai)聞名(ming)中(zhong)外，一般劃線(xian)(xian)平臺(tai)度都是(shi)(shi)在3級左右。在劃線(xian)(xian)平臺(tai)鑄件(jian)加工(gong)(gong)(gong)(gong)(gong)好后(hou)需要(yao)刨，刨完后(hou)還有一個(ge)重要(yao)的步驟(zou)是(shi)(shi)人工(gong)(gong)(gong)(gong)(gong)利用刮(gua)刀來刮(gua)研出要(yao)求的度。刮(gua)研是(shi)(shi)一個(ge) 重要(yao)的技術步驟(zou)，而且也(ye)是(shi)(shi)很麻煩，下面(mian)介紹(shao)一下劃線(xian)(xian)平臺(tai)粗刮(gua)、細刮(gua)、刮(gua)流程：劃線(xian)(xian)平臺(tai)刮(gua)削前(qian)首先作好準備(bei)工(gong)(gong)(gong)(gong)(gong)作，其(qi)中(zhong)包(bao)括工(gong)(gong)(gong)(gong)(gong)具和(he)涂(tu)料是(shi)(shi)否齊全(quan)，工(gong)(gong)(gong)(gong)(gong)件(jian)的刮(gua)削余量是(shi)(shi)否符合要(yao)求。被刮(gua)削工(gong)(gong)(gong)(gong)(gong)件(jian)的操(cao)作位(wei)置和(he)高度要(yao)合適(shi)，要(yao)牢固穩(wen)定(ding)支架(jia)。
初始(shi)開(kai)始(shi)刮的(de)時候(hou)叫做粗(cu)(cu)刮：劃線平臺粗(cu)(cu)刮可用(yong)連(lian)續推(tui)鏟的(de)方法(fa)，刀(dao)跡能連(lian)成長片。它(ta)能較快的(de)除(chu)掉刀(dao)痕、銹斑或(huo)過多的(de)刮削余量。一(yi)般粗(cu)(cu)刮達到(dao)（每(mei)25mmX25mm內(nei)有2-3研點）標準要求時，可以(yi)開(kai)始(shi)細刮。
粗刮到標準要求時(shi)開始(shi)細刮：劃線平臺(tai)細刮是(shi)在(zai)刮削面上去掉(diao)稀疏的較大(da)研點。細刮時(shi)可用短刮法，這樣(yang)刀痕短而寬(kuan)，刀跡長度即為刀刃寬(kuan)度。隨著研點增多，刀跡開始(shi)縮短。當每刮一遍(bian)，要按(an)同一方向刮削，在(zai)刮二遍(bian)時(shi)采用交(jiao)叉刮削，除掉(diao)原(yuan)方向刀跡。
當研(yan)(yan)(yan)點(dian)(dian)達(da)(da)到25mmX25mm面積上有12-15研(yan)(yan)(yan)點(dian)(dian)時(shi)，可以(yi)開始刮(gua)(gua)。劃線平臺刮(gua)(gua)是在細刮(gua)(gua)的基礎上，進一步(bu)刮(gua)(gua)削(xue)研(yan)(yan)(yan)點(dian)(dian)，使(shi)研(yan)(yan)(yan)增(zeng)加提(ti)高刮(gua)(gua)削(xue)度，達(da)(da)到質量(liang)標準。刮(gua)(gua)時(shi)，提(ti)刀(dao)要(yao)快(kuai)，用力要(yao)輕，每(mei)研(yan)(yan)(yan)點(dian)(dian)只刮(gua)(gua)一刀(dao)，不(bu)要(yao)重復刮(gua)(gua)削(xue)，同時(shi)要(yao)交叉的進行刮(gua)(gua)削(xue)。當研(yan)(yan)(yan)點(dian)(dian)達(da)(da)到25mmX25mm中有20個研(yan)(yan)(yan)點(dian)(dian)以(yi)上時(shi)，刮(gua)(gua)完成(cheng)。
刮完后(hou)即可排(pai)花(hua)，排(pai)花(hua)完后(hou)把(ba)工(gong)作面涂上防銹油。側面上漆。打開包裝，一塊成品劃線平臺 完成了。由于(yu)技術者水(shui)平所限，不妥之處，懇請指(zhi)正。
