、花(hua)(hua)崗(gang)(gang)(gang)(gang)石(shi)(shi)(shi)構(gou)(gou)件(jian)(jian)(jian)、花(hua)(hua)崗(gang)(gang)(gang)(gang)石(shi)(shi)(shi)構(gou)(gou)件(jian)(jian)(jian)、大型(xing)花(hua)(hua)崗(gang)(gang)(gang)(gang)石(shi)(shi)(shi)構(gou)(gou)件(jian)(jian)(jian)是(shi)(shi)(shi)在原有花(hua)(hua)崗(gang)(gang)(gang)(gang)石(shi)(shi)(shi)平(ping)(ping)(ping)臺(tai)的基礎上根據客戶的實(shi)際需(xu)要(yao)打孔(kong)(鑲嵌鋼(gang)套),開槽;找平(ping)(ping)(ping)行度,平(ping)(ping)(ping)面度,整(zheng)體(ti)的技術要(yao)求要(yao)比(bi)普通(tong)花(hua)(hua)崗(gang)(gang)(gang)(gang)石(shi)(shi)(shi)平(ping)(ping)(ping)臺(tai)嚴格的多(duo),生產(chan)制作工藝(yi)與花(hua)(hua)崗(gang)(gang)(gang)(gang)石(shi)(shi)(shi)平(ping)(ping)(ping)臺(tai)一樣,都是(shi)(shi)(shi)機(ji)械(xie)(xie)(xie)加(jia)工和手工研磨而成(cheng),只是(shi)(shi)(shi)花(hua)(hua)崗(gang)(gang)(gang)(gang)石(shi)(shi)(shi)機(ji)械(xie)(xie)(xie)構(gou)(gou)件(jian)(jian)(jian)的工藝(yi)要(yao)復(fu)雜很多(duo)。花(hua)(hua)崗(gang)(gang)(gang)(gang)石(shi)(shi)(shi)機(ji)械(xie)(xie)(xie)構(gou)(gou)件(jian)(jian)(jian)多(duo)用于機(ji)械(xie)(xie)(xie)行業(ye)的工裝,因(yin)此稱之(zhi)為花(hua)(hua)崗(gang)(gang)(gang)(gang)石(shi)(shi)(shi)機(ji)械(xie)(xie)(xie)構(gou)(gou)件(jian)(jian)(jian)或者(zhe)花(hua)(hua)崗(gang)(gang)(gang)(gang)石(shi)(shi)(shi)構(gou)(gou)件(jian)(jian)(jian),花(hua)(hua)崗(gang)(gang)(gang)(gang)石(shi)(shi)(shi)機(ji)械(xie)(xie)(xie)構(gou)(gou)件(jian)(jian)(jian)的特點與花(hua)(hua)崗(gang)(gang)(gang)(gang)石(shi)(shi)(shi)平(ping)(ping)(ping)臺(tai)基本相同。
花崗石(shi)機械構件的(de)特點主要是精度(du)穩定、維護(hu)方便。這是因為(wei):
①花崗石機械構(gou)件(jian)組織結(jie)構(gou)稠密、表面光滑、粗(cu)糙度(du)數值小;
②花崗(gang)石經(jing)長(chang)期 時效,內(nei)應力 消(xiao)失,材質穩定,不會變形;
③耐(nai)酸、耐(nai)堿、、抗磁;
④不會受(shou)潮生銹,使用、維護方(fang)便;
⑤線脹系數小(xiao),受溫度影響(xiang)小(xiao);
⑥工作(zuo)面(mian)受碰(peng)撞或劃傷后,只(zhi)會產生凹坑,不產生凸紋、毛(mao)刺,對(dui)測量精度(du)無影響。
花崗石(shi)機(ji)械構(gou)件主(zhu)要缺點是(shi),不能承受(shou)過大的撞(zhuang)擊、敲打,濕度高會變(bian)形,吸(xi)濕性(xing)為1%
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