大(da)理石(shi)平板支架的主要作(zuo)用具體(ti)說明：

　花崗石鑄鐵支架

　大(da)理(li)(li)(li)石(shi)平(ping)(ping)板是用天然(ran)的(de)(de)石(shi)質材料制(zhi)成的(de)(de)精密(mi)基(ji)準測量工(gong)具，對儀器儀表、精密(mi)工(gong)具、機械制(zhi)件的(de)(de)檢驗，都是理(li)(li)(li)想的(de)(de)基(ji)準面，大(da)理(li)(li)(li)石(shi)平(ping)(ping)臺(tai)(tai)特別是用于(yu)高精度(du)的(de)(de)測量方面。大(da)理(li)(li)(li)石(shi)平(ping)(ping)臺(tai)(tai)取材于(yu)地下(xia)優質的(de)(de)巖石(shi)層，經過億(yi)萬年自然(ran)時效，形(xing)態極為穩(wen)定，不用擔心因(yin)常規的(de)(de)溫差而發生變形(xing)。大(da)理(li)(li)(li)石(shi)平(ping)(ping)板經嚴格物理(li)(li)(li)試驗和選擇的(de)(de)花崗石(shi)料，結(jie)晶(jing)細(xi)密(mi)，質地堅(jian)硬。由于(yu)花崗石(shi)系非金屬(shu)材料，*磁(ci)性(xing)反(fan)應(ying)，亦無塑性(xing)變形(xing)。大(da)理(li)(li)(li)石(shi)平(ping)(ping)板其硬度(du)高，因(yin)此精度(du)保持性(xing)好。

　花崗石鑄鐵支架　一般(ban)大(da)理(li)(li)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)都會(hui)配有(you)一個支(zhi)(zhi)(zhi)架(jia)，其支(zhi)(zhi)(zhi)架(jia)的(de)(de)(de)一個主要的(de)(de)(de)作(zuo)用(yong)(yong)(yong)(yong)就(jiu)是用(yong)(yong)(yong)(yong)支(zhi)(zhi)(zhi)架(jia)進(jin)行支(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)。大(da)理(li)(li)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)支(zhi)(zhi)(zhi)架(jia)主要用(yong)(yong)(yong)(yong)于三(san)個主支(zhi)(zhi)(zhi)點支(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)，其他兩個支(zhi)(zhi)(zhi)點輔助。大(da)理(li)(li)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)支(zhi)(zhi)(zhi)架(jia)可(ke)用(yong)(yong)(yong)(yong)于大(da)理(li)(li)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)，鑄(zhu)鐵(tie)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)等工(gong)作(zuo)臺(tai)的(de)(de)(de)支(zhi)(zhi)(zhi)架(jia)，支(zhi)(zhi)(zhi)架(jia)底部(bu)有(you)調(diao)整(zheng)腳，可(ke)以調(diao)整(zheng)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)的(de)(de)(de)水平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)，進(jin)而使(shi)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)保持水平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)，使(shi)工(gong)作(zuo)更精(jing)確(que)。產品規(gui)格可(ke)根據平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)的(de)(de)(de)大(da)小選擇。大(da)理(li)(li)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)具(ju)有(you)不(bu)(bu)變形硬度(du)高耐磨(mo)性強，抗(kang)磨(mo)蝕耐高溫，而且物理(li)(li)性穩定組織縝密受(shou)撞擊晶(jing)粒脫(tuo)落(luo)表(biao)面(mian)不(bu)(bu)起毛邊不(bu)(bu)影響(xiang)其平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)精(jing)度(du)。支(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)不(bu)(bu)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)可(ke)導致(zhi)大(da)理(li)(li)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)翹曲變形。大(da)理(li)(li)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)的(de)(de)(de)正確(que)支(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)很(hen)容(rong)易(yi)實現。經妥善支(zhi)(zhi)(zhi)撐(cheng)(cheng)(cheng)(cheng)后，大(da)理(li)(li)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)能有(you)效地維持其精(jing)度(du)和重復(fu)精(jing)度(du)。由于支(zhi)(zhi)(zhi)架(jia)的(de)(de)(de)鑄(zhu)鐵(tie)材質(zhi)，在潮濕的(de)(de)(de)環境下(xia)很(hen)容(rong)易(yi)生銹，因此(ci)在使(shi)用(yong)(yong)(yong)(yong)完平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)后需要將平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)的(de)(de)(de)工(gong)作(zuo)表(biao)面(mian)擦拭干(gan)凈，用(yong)(yong)(yong)(yong)防(fang)銹油(you)涂(tu)抹表(biao)面(mian)。