檢(jian)驗(yan)(yan)(yan)彎(wan)(wan)板用(yong)(yong)途：主要用(yong)(yong)于高度(du)(du)(du)機械和(he)儀器(qi)檢(jian)驗(yan)(yan)(yan)和(he)機床之(zhi)間不垂直度(du)(du)(du)的檢(jian)查. 檢(jian)驗(yan)(yan)(yan)工件的90°角，維修(xiu)設(she)備時(shi)檢(jian)驗(yan)(yan)(yan)零部件相關表(biao)面的相互垂直度(du)(du)(du)，還經(jing)(jing)常(chang)用(yong)(yong)于鉗工劃(hua)線(xian)。檢(jian)驗(yan)(yan)(yan)彎(wan)(wan)板材質(zhi)：高強度(du)(du)(du)鑄鐵HT200-300工作面硬度(du)(du)(du)為HB170-240，經(jing)(jing)過兩次人工處理（人工退火600度(du)(du)(du)-700度(du)(du)(du)和(he)自然時(shi)效2-3年）使用(yong)(yong)該產(chan)品 的度(du)(du)(du)穩定，耐(nai)磨(mo)性能(neng)好。檢(jian)驗(yan)(yan)(yan)彎(wan)(wan)板一般度(du)(du)(du)：可以分為000級(ji)(ji)(ji)、00級(ji)(ji)(ji)、0級(ji)(ji)(ji)、1級(ji)(ji)(ji)、2級(ji)(ji)(ji)、3級(ji)(ji)(ji)。選用(yong)(yong)度(du)(du)(du)標準時(shi)一般根(gen)據使用(yong)(yong)情況酌情而定。3級(ji)(ji)(ji)度(du)(du)(du)以上的彎(wan)(wan)板用(yong)(yong)做檢(jian)驗(yan)(yan)(yan)、劃(hua)線(xian)、裝配等(deng)使用(yong)(yong)，4級(ji)(ji)(ji)度(du)(du)(du)以下(xia)的彎(wan)(wan)板一般用(yong)(yong)做鉚焊等(deng)使用(yong)(yong)