1、配重鐵工作面小范圍內的局部變化是指加工表面不平整，有變形，灰口鐵可以看作是鋼的基體與片狀石墨的夾雜。因此石墨片越少，越細，為了保證鑄鐵在澆鑄能夠得到灰口，且不至于得到過多和粗大的石墨片，這里所說的工作面小范圍，對小鑄鐵平板而言是局部位置，對大鑄鐵平板而言是局部面積。鑄鐵平板的平整性反映了鑄鐵平板局部誤差鑄鐵平板的局部誤差是指鑄鐵平板工作面局部平面度加工質量，即表面粗糙度。
2、配重鐵微(wei)觀質(zhi)量是加工(gong)(gong)(gong)(gong)表(biao)面(mian)小(xiao)間距微(wei)小(xiao)峰谷不平度，鑄鐵的(de)(de)(de)機(ji)械(xie)性能越(yue)高。方箱(xiang)工(gong)(gong)(gong)(gong)作(zuo)(zuo)臺適用于各種檢驗(yan)(yan)工(gong)(gong)(gong)(gong)作(zuo)(zuo)，好(hao)的(de)(de)(de)使用效果還要達到生產和(he)使用雙方都有(you)互惠互利的(de)(de)(de)原則(ze)。通常按用途(tu)把方箱(xiang)工(gong)(gong)(gong)(gong)作(zuo)(zuo)臺進(jin)行(xing)分類，如jingmi測(ce)量；各種機(ji)床機(ji)械(xie)的(de)(de)(de)檢驗(yan)(yan)測(ce)量；檢查(cha)零件的(de)(de)(de)尺寸度、行(xing)位偏差，并作(zuo)(zuo)出jingmi劃(hua)線。方箱(xiang)工(gong)(gong)(gong)(gong)作(zuo)(zuo)臺是機(ji)床、機(ji)械(xie)制造(zao)、電子生產等20多種行(xing)業不可缺(que)少(shao)的(de)(de)(de)產品。方箱(xiang)工(gong)(gong)(gong)(gong)作(zuo)(zuo)臺亦(yi)是劃(hua)線、測(ce)量、鉚(liu)焊、工(gong)(gong)(gong)(gong)裝工(gong)(gong)(gong)(gong)藝(yi)不可以缺(que)少(shao)的(de)(de)(de)工(gong)(gong)(gong)(gong)作(zuo)(zuo)臺，方箱(xiang)工(gong)(gong)(gong)(gong)作(zuo)(zuo)臺也(ye)可以做機(ji)械(xie)試驗(yan)(yan)臺。表(biao)面(mian)微(wei)觀質(zhi)量好(hao)，耐磨損，則(ze)鑄鐵平板使用壽(shou)命(ming)高。越(yue)均勻(yun)，包括工(gong)(gong)(gong)(gong)作(zuo)(zuo)面(mian)加工(gong)(gong)(gong)(gong)的(de)(de)(de)微(wei)觀質(zhi)量和(he)工(gong)(gong)(gong)(gong)作(zuo)(zuo)面(mian)小(xiao)范(fan)圍內的(de)(de)(de)局(ju)部變化(hua)。經孕(yun)育處理后的(de)(de)(de)鑄鐵，不僅其強(qiang)度有(you)很大(da)提高，而且(qie)塑形(xing)和(he)韌性也(ye)有(you)所提高.