檢(jian)驗(yan)(yan)(yan)彎(wan)(wan)板用(yong)(yong)途：主要(yao)用(yong)(yong)于高(gao)度(du)機械和儀器檢(jian)驗(yan)(yan)(yan)和機床之間不垂直度(du)的(de)(de)檢(jian)查. 檢(jian)驗(yan)(yan)(yan)工(gong)件(jian)的(de)(de)90°角，維修設備時檢(jian)驗(yan)(yan)(yan)零部件(jian)相關表面(mian)的(de)(de)相互垂直度(du)，還(huan)經(jing)常用(yong)(yong)于鉗工(gong)劃線(xian)。檢(jian)驗(yan)(yan)(yan)彎(wan)(wan)板材(cai)質：高(gao)強度(du)鑄鐵HT200-300工(gong)作面(mian)硬(ying)度(du)為HB170-240，經(jing)過兩次人工(gong)處理（人工(gong)退火600度(du)-700度(du)和自然(ran)時效2-3年）使(shi)用(yong)(yong)該產(chan)品(pin) 的(de)(de)度(du)穩定，耐(nai)磨性能好。檢(jian)驗(yan)(yan)(yan)彎(wan)(wan)板一(yi)般(ban)度(du)：可以(yi)分為000級(ji)(ji)(ji)(ji)、00級(ji)(ji)(ji)(ji)、0級(ji)(ji)(ji)(ji)、1級(ji)(ji)(ji)(ji)、2級(ji)(ji)(ji)(ji)、3級(ji)(ji)(ji)(ji)。選用(yong)(yong)度(du)標準時一(yi)般(ban)根據使(shi)用(yong)(yong)情況(kuang)酌情而定。3級(ji)(ji)(ji)(ji)度(du)以(yi)上的(de)(de)彎(wan)(wan)板用(yong)(yong)做檢(jian)驗(yan)(yan)(yan)、劃線(xian)、裝(zhuang)配等(deng)使(shi)用(yong)(yong)，4級(ji)(ji)(ji)(ji)度(du)以(yi)下的(de)(de)彎(wan)(wan)板一(yi)般(ban)用(yong)(yong)做鉚焊等(deng)使(shi)用(yong)(yong)