將一(yi)(yi)個(ge)(ge)理想(xiang)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)按實際(ji)表面(mian)(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)趨向，置于(yu)(yu)(yu)實際(ji)表面(mian)(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)中部(bu)，并使(shi)實際(ji)表面(mian)(mian)(mian)(mian)(mian)(mian)(mian)上(shang)(shang)各(ge)點(dian)到理想(xiang)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)距離平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)方(fang)和為(wei)_小(xiao)，以這個(ge)(ge)_小(xiao)二(er)乘方(fang)中心平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)作(zuo)為(wei)評定基(ji)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)，各(ge)測(ce)(ce)點(dian)對此(ci)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)偏(pian)差(cha)(cha)中大(da)(da)(da)數值(zhi)與(yu)小(xiao)數值(zhi)之(zhi)差(cha)(cha)為(wei)被(bei)(bei)測(ce)(ce)表面(mian)(mian)(mian)(mian)(mian)(mian)(mian)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)度(du)誤差(cha)(cha)值(zhi)。 對角線(xian)原則 以通過(guo)被(bei)(bei)測(ce)(ce)表面(mian)(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)條(tiao)對角線(xian)而平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)行于(yu)(yu)(yu)另一(yi)(yi)條(tiao)對角線(xian)的(de)(de)(de)(de)(de)(de)(de)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)作(zuo)為(wei)評定基(ji)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)，各(ge)測(ce)(ce)點(dian)對此(ci)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)偏(pian)差(cha)(cha)中大(da)(da)(da)數值(zhi)與(yu)小(xiao)數值(zhi)之(zhi)差(cha)(cha)為(wei)被(bei)(bei)測(ce)(ce)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)度(du)誤差(cha)(cha)值(zhi)。
鑄鐵(tie)(tie)(tie)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)_要(yao)(yao)(yao)(yao)有(you)(you)精度(du)準確的(de)(de)(de)(de)(de)(de)(de)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)度(du)，要(yao)(yao)(yao)(yao)想(xiang)有(you)(you)精度(du)準確的(de)(de)(de)(de)(de)(de)(de)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)度(du)_具備(bei)一(yi)(yi)以下幾個(ge)(ge)條(tiao)件(jian)：
一(yi)(yi)、厚(hou)度(du)要(yao)(yao)(yao)(yao)求(qiu)：主要(yao)(yao)(yao)(yao)包(bao)括平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)上(shang)(shang)工(gong)(gong)作(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)厚(hou)度(du)，側(ce)(ce)圍(wei)(wei)(wei)厚(hou)度(du)和高度(du)，以及底面(mian)(mian)(mian)(mian)(mian)(mian)(mian)筋板(ban)的(de)(de)(de)(de)(de)(de)(de)厚(hou)度(du)、高度(du)和密(mi)度(du)。
二(er)、材(cai)質要(yao)(yao)(yao)(yao)求(qiu)：高強(qiang)度(du)鑄鐵(tie)(tie)(tie)HT200-300,硬(ying)度(du):HB170-240。
三、人工(gong)(gong)退火：在(zai)(zai)回火窯經過(guo)600-700度(du)高溫退火時(shi)(shi)(shi)效處理。
四、自然時(shi)(shi)(shi)效：按國標(biao)(biao)標(biao)(biao)準應該(gai)是(shi)2-3年自然時(shi)(shi)(shi)效，由于(yu)(yu)(yu)此(ci)工(gong)(gong)序時(shi)(shi)(shi)間(jian)太長，企業受資金周轉影響已(yi)不(bu)(bu)可能等待那么長時(shi)(shi)(shi)間(jian)，多以激振(zhen)器(qi)通過(guo)振(zhen)動(dong)時(shi)(shi)(shi)效代替。雖然這種工(gong)(gong)藝(yi)的(de)(de)(de)(de)(de)(de)(de)效果(guo)尚未明(ming)確，但在(zai)(zai)_上(shang)(shang)已(yi)普遍使(shi)用(yong)(yong)(yong)。
五、沙眼(yan)與(yu)氣孔：0級(ji)(ji)與(yu)1級(ji)(ji)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)不(bu)(bu)允許有(you)(you)氣孔與(yu)沙眼(yan)，2級(ji)(ji)和3級(ji)(ji)可以用(yong)(yong)(yong)與(yu)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)同材(cai)質固(gu)體填(tian)充氣孔沙眼(yan)。注意：填(tian)充物的(de)(de)(de)(de)(de)(de)(de)的(de)(de)(de)(de)(de)(de)(de)硬(ying)度(du)_要(yao)(yao)(yao)(yao)低于(yu)(yu)(yu)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)本身的(de)(de)(de)(de)(de)(de)(de)硬(ying)度(du)。
六、鏟刮工(gong)(gong)藝(yi)：人工(gong)(gong)鏟刮在(zai)(zai)鑄鐵(tie)(tie)(tie)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)加工(gong)(gong)過(guo)程中是(shi)重要(yao)(yao)(yao)(yao)的(de)(de)(de)(de)(de)(de)(de)工(gong)(gong)藝(yi)，它決定了鑄鐵(tie)(tie)(tie)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)的(de)(de)(de)(de)(de)(de)(de)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)度(du)誤差(cha)(cha)大(da)(da)(da)小(xiao)，以及工(gong)(gong)作(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)可接觸點(dian)數。0級(ji)(ji)板(ban)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)在(zai)(zai)每(mei)邊(bian)為(wei)25㎜平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)方(fang)的(de)(de)(de)(de)(de)(de)(de)范圍(wei)(wei)(wei)內(nei)不(bu)(bu)少(shao)于(yu)(yu)(yu)25點(dian)；1級(ji)(ji)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)在(zai)(zai)每(mei)邊(bian)為(wei)25㎜平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)方(fang)的(de)(de)(de)(de)(de)(de)(de)范圍(wei)(wei)(wei)內(nei)不(bu)(bu)少(shao)于(yu)(yu)(yu)20點(dian)；2級(ji)(ji)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)在(zai)(zai)每(mei)邊(bian)為(wei)25㎜平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)方(fang)的(de)(de)(de)(de)(de)(de)(de)范圍(wei)(wei)(wei)內(nei)不(bu)(bu)少(shao)于(yu)(yu)(yu)16點(dian)；3級(ji)(ji)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)板(ban)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)在(zai)(zai)每(mei)邊(bian)為(wei)25㎜平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)方(fang)的(de)(de)(de)(de)(de)(de)(de)范圍(wei)(wei)(wei)內(nei)不(bu)(bu)少(shao)于(yu)(yu)(yu)12點(dian)。鏟刮完(wan)(wan)成(cheng)后平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)四個(ge)(ge)邊(bian)棱倒鈍(dun)。
七、清砂(sha)(sha)與(yu)涂(tu)(tu)漆(qi)(qi)(qi)：平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)底面(mian)(mian)(mian)(mian)(mian)(mian)(mian)清砂(sha)(sha)要(yao)(yao)(yao)(yao)_，干凈且噴涂(tu)(tu)紅色防銹(xiu)漆(qi)(qi)(qi)。側(ce)(ce)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)要(yao)(yao)(yao)(yao)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)整(zheng)(zheng)后再(zai)涂(tu)(tu)漆(qi)(qi)(qi)，一(yi)(yi)般涂(tu)(tu)籃(lan)漆(qi)(qi)(qi)或綠漆(qi)(qi)(qi)。
八、包(bao)裝(zhuang)要(yao)(yao)(yao)(yao)求(qiu)：主要(yao)(yao)(yao)(yao)是(shi)木質包(bao)裝(zhuang)，盡(jin)量選用(yong)(yong)(yong)厚(hou)質木材(cai)覆蓋平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)上(shang)(shang)工(gong)(gong)作(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)，必要(yao)(yao)(yao)(yao)時(shi)(shi)(shi)做(zuo)全封閉包(bao)裝(zhuang)。包(bao)裝(zhuang)前平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)工(gong)(gong)作(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)防銹(xiu)措(cuo)施(shi)_要(yao)(yao)(yao)(yao)做(zuo)好。
九、運輸(shu)要(yao)(yao)(yao)(yao)求(qiu)、在(zai)(zai)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)裝(zhuang)車后，檢(jian)查(cha)是(shi)否有(you)(you)懸空(kong)，如有(you)(you)懸空(kong)要(yao)(yao)(yao)(yao)墊實，避(bi)免振(zhen)動(dong)。平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)不(bu)(bu)要(yao)(yao)(yao)(yao)摞放過(guo)高以免擠壓(ya)變形。
十、 配件(jian)選擇：主要(yao)(yao)(yao)(yao)是(shi)支架選擇，支架用(yong)(yong)(yong)材(cai)為(wei)壁厚(hou)1.5-2mm的(de)(de)(de)(de)(de)(de)(de)方(fang)鋼和角鐵(tie)(tie)(tie)，焊接密(mi)度(du)和結構要(yao)(yao)(yao)(yao)合(he)理，調(diao)節(jie)螺栓要(yao)(yao)(yao)(yao)旋(xuan)轉通暢。
十一(yi)(yi)、安裝(zhuang)調(diao)試：一(yi)(yi)般先用(yong)(yong)(yong)用(yong)(yong)(yong)框式水平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)儀調(diao)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)，在(zai)(zai)用(yong)(yong)(yong)光學合(he)像(xiang)水平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)儀或電子合(he)像(xiang)水平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)儀再(zai)進行一(yi)(yi)次(ci)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)度(du)誤差(cha)(cha)測(ce)(ce)量，如有(you)(you)問(wen)題可要(yao)(yao)(yao)(yao)求(qiu)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)生產商來現(xian)場鏟刮修復。
十二(er)、正確使(shi)用(yong)(yong)(yong)：鑄鐵(tie)(tie)(tie)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)在(zai)(zai)調(diao)試完(wan)(wan)成(cheng)后即(ji)可使(shi)用(yong)(yong)(yong)，室溫控制在(zai)(zai)20±5℃使(shi),在(zai)(zai)臺(tai)(tai)(tai)(tai)(tai)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)上(shang)(shang)檢(jian)測(ce)(ce)工(gong)(gong)件(jian)要(yao)(yao)(yao)(yao)輕放輕挪(nuo)，不(bu)(bu)要(yao)(yao)(yao)(yao)集中使(shi)用(yong)(yong)(yong)一(yi)(yi)個(ge)(ge)區域，盡(jin)量均勻(yun)使(shi)用(yong)(yong)(yong)整(zheng)(zheng)個(ge)(ge)鑄鐵(tie)(tie)(tie)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)的(de)(de)(de)(de)(de)(de)(de)有(you)(you)效面(mian)(mian)(mian)(mian)(mian)(mian)(mian)積。
