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、配重鐵微觀(guan)(guan)質(zhi)量(liang)(liang)(liang)是加工(gong)(gong)(gong)表面(mian)小(xiao)(xiao)間(jian)距微小(xiao)(xiao)峰谷不平度，鑄鐵的(de)機(ji)(ji)(ji)械(xie)性能越(yue)高(gao)。方(fang)(fang)箱工(gong)(gong)(gong)作(zuo)臺(tai)(tai)適用(yong)于(yu)各種(zhong)檢驗(yan)工(gong)(gong)(gong)作(zuo)，好的(de)使用(yong)效果還要達到(dao)生產和使用(yong)雙方(fang)(fang)都有(you)(you)互惠(hui)互利的(de)原則。通常按用(yong)途把(ba)方(fang)(fang)箱工(gong)(gong)(gong)作(zuo)臺(tai)(tai)進行(xing)分類(lei)，如jingmi測量(liang)(liang)(liang)；各種(zhong)機(ji)(ji)(ji)床機(ji)(ji)(ji)械(xie)的(de)檢驗(yan)測量(liang)(liang)(liang)；檢查零(ling)件的(de)尺寸度、行(xing)位偏差(cha)，并作(zuo)出jingmi劃線(xian)。方(fang)(fang)箱工(gong)(gong)(gong)作(zuo)臺(tai)(tai)是機(ji)(ji)(ji)床、機(ji)(ji)(ji)械(xie)制(zhi)造、電子(zi)生產等20多種(zhong)行(xing)業(ye)不可(ke)缺少(shao)的(de)產品。方(fang)(fang)箱工(gong)(gong)(gong)作(zuo)臺(tai)(tai)亦是劃線(xian)、測量(liang)(liang)(liang)、鉚焊、工(gong)(gong)(gong)裝(zhuang)工(gong)(gong)(gong)藝不可(ke)以(yi)缺少(shao)的(de)工(gong)(gong)(gong)作(zuo)臺(tai)(tai)，方(fang)(fang)箱工(gong)(gong)(gong)作(zuo)臺(tai)(tai)也可(ke)以(yi)做(zuo)機(ji)(ji)(ji)械(xie)試(shi)驗(yan)臺(tai)(tai)。表面(mian)微觀(guan)(guan)質(zhi)量(liang)(liang)(liang)好，耐磨損，則鑄鐵平板使用(yong)壽(shou)命高(gao)。越(yue)均勻，包(bao)括工(gong)(gong)(gong)作(zuo)面(mian)加工(gong)(gong)(gong)的(de)微觀(guan)(guan)質(zhi)量(liang)(liang)(liang)和工(gong)(gong)(gong)作(zuo)面(mian)小(xiao)(xiao)范圍內的(de)局部變(bian)化。經孕育處理后的(de)鑄鐵，不僅其強度有(you)(you)很大提高(gao)，而(er)且(qie)塑形(xing)和韌性也有(you)(you)所提高(gao).