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(tie)微觀(guan)質(zhi)量(liang)是加工(gong)(gong)(gong)表(biao)面(mian)小(xiao)間距微小(xiao)峰谷(gu)不平度，鑄(zhu)鐵(tie)的(de)(de)(de)機(ji)(ji)械性能越(yue)高(gao)。方箱工(gong)(gong)(gong)作(zuo)臺(tai)(tai)適用(yong)于(yu)各種檢(jian)驗工(gong)(gong)(gong)作(zuo)，好的(de)(de)(de)使用(yong)效果(guo)還(huan)要達到生(sheng)產和(he)(he)使用(yong)雙方都有(you)互惠互利的(de)(de)(de)原則。通常按用(yong)途把方箱工(gong)(gong)(gong)作(zuo)臺(tai)(tai)進(jin)行分類(lei)，如jingmi測量(liang)；各種機(ji)(ji)床機(ji)(ji)械的(de)(de)(de)檢(jian)驗測量(liang)；檢(jian)查零件(jian)的(de)(de)(de)尺寸度、行位偏差，并作(zuo)出(chu)jingmi劃線(xian)。方箱工(gong)(gong)(gong)作(zuo)臺(tai)(tai)是機(ji)(ji)床、機(ji)(ji)械制造、電子生(sheng)產等20多種行業(ye)不可缺(que)少的(de)(de)(de)產品。方箱工(gong)(gong)(gong)作(zuo)臺(tai)(tai)亦是劃線(xian)、測量(liang)、鉚(liu)焊、工(gong)(gong)(gong)裝工(gong)(gong)(gong)藝不可以缺(que)少的(de)(de)(de)工(gong)(gong)(gong)作(zuo)臺(tai)(tai)，方箱工(gong)(gong)(gong)作(zuo)臺(tai)(tai)也(ye)可以做機(ji)(ji)械試驗臺(tai)(tai)。表(biao)面(mian)微觀(guan)質(zhi)量(liang)好，耐磨(mo)損，則鑄(zhu)鐵(tie)平板使用(yong)壽命高(gao)。越(yue)均勻(yun)，包括(kuo)工(gong)(gong)(gong)作(zuo)面(mian)加工(gong)(gong)(gong)的(de)(de)(de)微觀(guan)質(zhi)量(liang)和(he)(he)工(gong)(gong)(gong)作(zuo)面(mian)小(xiao)范(fan)圍內的(de)(de)(de)局部(bu)變化。經孕育處(chu)理后的(de)(de)(de)鑄(zhu)鐵(tie)，不僅其強度有(you)很(hen)大提高(gao)，而(er)且塑形和(he)(he)韌性也(ye)有(you)所提高(gao).