將一(yi)個(ge)理想(xiang)(xiang)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)按實際(ji)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)趨(qu)向，置于(yu)實際(ji)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)中(zhong)(zhong)部，并使(shi)(shi)實際(ji)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)上(shang)各(ge)點(dian)到理想(xiang)(xiang)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)距(ju)離平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)方(fang)(fang)(fang)和(he)為(wei)(wei)(wei)_小(xiao)，以(yi)(yi)(yi)這個(ge)_小(xiao)二乘方(fang)(fang)(fang)中(zhong)(zhong)心(xin)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)作(zuo)為(wei)(wei)(wei)評定基(ji)面(mian)(mian)(mian)(mian)(mian)(mian)，各(ge)測(ce)點(dian)對(dui)(dui)此平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)偏(pian)差(cha)中(zhong)(zhong)大數(shu)值(zhi)(zhi)與小(xiao)數(shu)值(zhi)(zhi)之差(cha)為(wei)(wei)(wei)被(bei)測(ce)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)度(du)(du)(du)(du)誤差(cha)值(zhi)(zhi)。 對(dui)(dui)角線(xian)原則 以(yi)(yi)(yi)通(tong)過(guo)(guo)被(bei)測(ce)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)一(yi)條對(dui)(dui)角線(xian)而平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)行(xing)于(yu)另一(yi)條對(dui)(dui)角線(xian)的(de)(de)(de)(de)(de)(de)(de)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)作(zuo)為(wei)(wei)(wei)評定基(ji)面(mian)(mian)(mian)(mian)(mian)(mian)，各(ge)測(ce)點(dian)對(dui)(dui)此平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)偏(pian)差(cha)中(zhong)(zhong)大數(shu)值(zhi)(zhi)與小(xiao)數(shu)值(zhi)(zhi)之差(cha)為(wei)(wei)(wei)被(bei)測(ce)面(mian)(mian)(mian)(mian)(mian)(mian)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)度(du)(du)(du)(du)誤差(cha)值(zhi)(zhi)。
鑄鐵平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)_要(yao)(yao)(yao)(yao)有精度(du)(du)(du)(du)準確(que)的(de)(de)(de)(de)(de)(de)(de)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)度(du)(du)(du)(du)，要(yao)(yao)(yao)(yao)想(xiang)(xiang)有精度(du)(du)(du)(du)準確(que)的(de)(de)(de)(de)(de)(de)(de)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)度(du)(du)(du)(du)_具備一(yi)以(yi)(yi)(yi)下(xia)幾個(ge)條件(jian)：
一(yi)、厚(hou)度(du)(du)(du)(du)要(yao)(yao)(yao)(yao)求(qiu)：主(zhu)(zhu)(zhu)要(yao)(yao)(yao)(yao)包(bao)括(kuo)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)上(shang)工(gong)(gong)作(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)厚(hou)度(du)(du)(du)(du)，側(ce)圍厚(hou)度(du)(du)(du)(du)和(he)高(gao)度(du)(du)(du)(du)，以(yi)(yi)(yi)及底(di)面(mian)(mian)(mian)(mian)(mian)(mian)筋(jin)板(ban)的(de)(de)(de)(de)(de)(de)(de)厚(hou)度(du)(du)(du)(du)、高(gao)度(du)(du)(du)(du)和(he)密(mi)度(du)(du)(du)(du)。
二、材質(zhi)(zhi)要(yao)(yao)(yao)(yao)求(qiu)：高(gao)強度(du)(du)(du)(du)鑄鐵HT200-300,硬(ying)(ying)度(du)(du)(du)(du):HB170-240。
三(san)、人工(gong)(gong)退(tui)火(huo)：在(zai)(zai)(zai)(zai)(zai)回火(huo)窯經過(guo)(guo)600-700度(du)(du)(du)(du)高(gao)溫(wen)退(tui)火(huo)時效(xiao)處理。
四、自(zi)然(ran)時效(xiao)：按國標標準應該是(shi)2-3年(nian)自(zi)然(ran)時效(xiao)，由于(yu)此工(gong)(gong)序時間太長，企業受資金周轉(zhuan)影響已(yi)不(bu)可(ke)能(neng)等(deng)待那么長時間，多以(yi)(yi)(yi)激(ji)振器通(tong)過(guo)(guo)振動(dong)時效(xiao)代(dai)替。雖(sui)然(ran)這種工(gong)(gong)藝的(de)(de)(de)(de)(de)(de)(de)效(xiao)果尚未明確(que)，但(dan)在(zai)(zai)(zai)(zai)(zai)_上(shang)已(yi)普(pu)遍使(shi)(shi)用(yong)(yong)(yong)。
五、沙眼(yan)與氣孔：0級(ji)與1級(ji)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)不(bu)允許有氣孔與沙眼(yan)，2級(ji)和(he)3級(ji)可(ke)以(yi)(yi)(yi)用(yong)(yong)(yong)與平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)同材質(zhi)(zhi)固體填充(chong)氣孔沙眼(yan)。注意(yi)：填充(chong)物(wu)的(de)(de)(de)(de)(de)(de)(de)的(de)(de)(de)(de)(de)(de)(de)硬(ying)(ying)度(du)(du)(du)(du)_要(yao)(yao)(yao)(yao)低于(yu)平(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)(ying)度(du)(du)(du)(du)。
六、鏟(chan)刮(gua)工(gong)(gong)藝：人工(gong)(gong)鏟(chan)刮(gua)在(zai)(zai)(zai)(zai)(zai)鑄鐵平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)加工(gong)(gong)過(guo)(guo)程中(zhong)(zhong)是(shi)重要(yao)(yao)(yao)(yao)的(de)(de)(de)(de)(de)(de)(de)工(gong)(gong)藝，它決定了鑄鐵平(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)面(mian)(mian)(mian)(mian)(mian)(mian)度(du)(du)(du)(du)誤差(cha)大小(xiao)，以(yi)(yi)(yi)及工(gong)(gong)作(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)可(ke)接觸(chu)點(dian)數(shu)。0級(ji)板(ban)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)在(zai)(zai)(zai)(zai)(zai)每邊(bian)(bian)為(wei)(wei)(wei)25㎜平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)方(fang)(fang)(fang)的(de)(de)(de)(de)(de)(de)(de)范圍內(nei)不(bu)少于(yu)25點(dian)；1級(ji)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)在(zai)(zai)(zai)(zai)(zai)每邊(bian)(bian)為(wei)(wei)(wei)25㎜平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)方(fang)(fang)(fang)的(de)(de)(de)(de)(de)(de)(de)范圍內(nei)不(bu)少于(yu)20點(dian)；2級(ji)平(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)臺(tai)(tai)(tai)(tai)(tai)在(zai)(zai)(zai)(zai)(zai)每邊(bian)(bian)為(wei)(wei)(wei)25㎜平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)方(fang)(fang)(fang)的(de)(de)(de)(de)(de)(de)(de)范圍內(nei)不(bu)少于(yu)16點(dian)；3級(ji)平(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)臺(tai)(tai)(tai)(tai)(tai)在(zai)(zai)(zai)(zai)(zai)每邊(bian)(bian)為(wei)(wei)(wei)25㎜平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)方(fang)(fang)(fang)的(de)(de)(de)(de)(de)(de)(de)范圍內(nei)不(bu)少于(yu)12點(dian)。鏟(chan)刮(gua)完成后(hou)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)四個(ge)邊(bian)(bian)棱倒鈍。
七、清砂(sha)(sha)與涂(tu)漆(qi)(qi)：平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)底(di)面(mian)(mian)(mian)(mian)(mian)(mian)清砂(sha)(sha)要(yao)(yao)(yao)(yao)_，干凈且噴涂(tu)紅色防銹(xiu)漆(qi)(qi)。側(ce)面(mian)(mian)(mian)(mian)(mian)(mian)要(yao)(yao)(yao)(yao)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)整后(hou)再涂(tu)漆(qi)(qi)，一(yi)般涂(tu)籃(lan)漆(qi)(qi)或(huo)綠漆(qi)(qi)。
八、包(bao)裝(zhuang)要(yao)(yao)(yao)(yao)求(qiu)：主(zhu)(zhu)(zhu)要(yao)(yao)(yao)(yao)是(shi)木質(zhi)(zhi)包(bao)裝(zhuang)，盡量(liang)(liang)選(xuan)用(yong)(yong)(yong)厚(hou)質(zhi)(zhi)木材覆(fu)蓋平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)上(shang)工(gong)(gong)作(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)，必要(yao)(yao)(yao)(yao)時做全封(feng)閉(bi)包(bao)裝(zhuang)。包(bao)裝(zhuang)前平(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)防銹(xiu)措施_要(yao)(yao)(yao)(yao)做好。
九、運輸要(yao)(yao)(yao)(yao)求(qiu)、在(zai)(zai)(zai)(zai)(zai)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)裝(zhuang)車后(hou)，檢(jian)查是(shi)否有懸空(kong)，如(ru)有懸空(kong)要(yao)(yao)(yao)(yao)墊實，避免(mian)振動(dong)。平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)不(bu)要(yao)(yao)(yao)(yao)摞放過(guo)(guo)高(gao)以(yi)(yi)(yi)免(mian)擠壓變(bian)形。
十、 配件(jian)選(xuan)擇：主(zhu)(zhu)(zhu)要(yao)(yao)(yao)(yao)是(shi)支架(jia)選(xuan)擇，支架(jia)用(yong)(yong)(yong)材為(wei)(wei)(wei)壁厚(hou)1.5-2mm的(de)(de)(de)(de)(de)(de)(de)方(fang)(fang)(fang)鋼和(he)角鐵，焊接密(mi)度(du)(du)(du)(du)和(he)結構要(yao)(yao)(yao)(yao)合理，調節螺栓要(yao)(yao)(yao)(yao)旋轉(zhuan)通(tong)暢。
十一(yi)、安裝(zhuang)調試(shi)：一(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)儀(yi)調平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)，在(zai)(zai)(zai)(zai)(zai)用(yong)(yong)(yong)光(guang)學合像水平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)儀(yi)或(huo)電子合像水平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)儀(yi)再進行(xing)一(yi)次平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)度(du)(du)(du)(du)誤差(cha)測(ce)量(liang)(liang)，如(ru)有問題可(ke)要(yao)(yao)(yao)(yao)求(qiu)平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)生(sheng)產(chan)商來(lai)現場(chang)鏟(chan)刮(gua)修復(fu)。
十二、正確(que)使(shi)(shi)用(yong)(yong)(yong)：鑄鐵平(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)(tai)在(zai)(zai)(zai)(zai)(zai)調試(shi)完成后(hou)即可(ke)使(shi)(shi)用(yong)(yong)(yong)，室(shi)溫(wen)控制在(zai)(zai)(zai)(zai)(zai)20±5℃使(shi)(shi),在(zai)(zai)(zai)(zai)(zai)臺(tai)(tai)(tai)(tai)(tai)面(mian)(mian)(mian)(mian)(mian)(mian)上(shang)檢(jian)測(ce)工(gong)(gong)件(jian)要(yao)(yao)(yao)(yao)輕放輕挪，不(bu)要(yao)(yao)(yao)(yao)集中(zhong)(zhong)使(shi)(shi)用(yong)(yong)(yong)一(yi)個(ge)區域，盡量(liang)(liang)均勻使(shi)(shi)用(yong)(yong)(yong)整個(ge)鑄鐵平(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)有效(xiao)面(mian)(mian)(mian)(mian)(mian)(mian)積。
