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(pei)重鐵微(wei)觀質(zhi)量(liang)(liang)(liang)是(shi)加工(gong)(gong)(gong)(gong)表面(mian)(mian)小間距微(wei)小峰(feng)谷(gu)不平度，鑄(zhu)(zhu)鐵的(de)(de)機械(xie)性(xing)能越(yue)高(gao)。方箱(xiang)(xiang)工(gong)(gong)(gong)(gong)作(zuo)臺(tai)適用(yong)于各種檢(jian)驗(yan)(yan)(yan)工(gong)(gong)(gong)(gong)作(zuo)，好的(de)(de)使用(yong)效果還要達到生產(chan)和(he)(he)使用(yong)雙方都有互惠互利的(de)(de)原則。通(tong)常按用(yong)途把方箱(xiang)(xiang)工(gong)(gong)(gong)(gong)作(zuo)臺(tai)進(jin)行分類(lei)，如jingmi測量(liang)(liang)(liang)；各種機床機械(xie)的(de)(de)檢(jian)驗(yan)(yan)(yan)測量(liang)(liang)(liang)；檢(jian)查零件的(de)(de)尺寸(cun)度、行位偏差(cha)，并作(zuo)出jingmi劃線(xian)。方箱(xiang)(xiang)工(gong)(gong)(gong)(gong)作(zuo)臺(tai)是(shi)機床、機械(xie)制造、電子生產(chan)等20多種行業不可缺少(shao)的(de)(de)產(chan)品。方箱(xiang)(xiang)工(gong)(gong)(gong)(gong)作(zuo)臺(tai)亦是(shi)劃線(xian)、測量(liang)(liang)(liang)、鉚焊(han)、工(gong)(gong)(gong)(gong)裝工(gong)(gong)(gong)(gong)藝不可以缺少(shao)的(de)(de)工(gong)(gong)(gong)(gong)作(zuo)臺(tai)，方箱(xiang)(xiang)工(gong)(gong)(gong)(gong)作(zuo)臺(tai)也(ye)(ye)可以做(zuo)機械(xie)試驗(yan)(yan)(yan)臺(tai)。表面(mian)(mian)微(wei)觀質(zhi)量(liang)(liang)(liang)好，耐磨損，則鑄(zhu)(zhu)鐵平板使用(yong)壽命高(gao)。越(yue)均(jun)勻(yun)，包括工(gong)(gong)(gong)(gong)作(zuo)面(mian)(mian)加工(gong)(gong)(gong)(gong)的(de)(de)微(wei)觀質(zhi)量(liang)(liang)(liang)和(he)(he)工(gong)(gong)(gong)(gong)作(zuo)面(mian)(mian)小范圍內的(de)(de)局(ju)部(bu)變(bian)化。經孕育處理(li)后(hou)的(de)(de)鑄(zhu)(zhu)鐵，不僅其(qi)強度有很(hen)大(da)提(ti)高(gao)，而且塑形和(he)(he)韌性(xing)也(ye)(ye)有所提(ti)高(gao).