鑄鐵平臺DIN876標準設計特點
2017年06月14日
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國外生產的鑄鐵平臺及國內外銷出口的平臺、使用國外設備的汽車鑄鐵平臺等產品常常會接觸到DIN標準,我公司長期為國外汽車試驗設備配套鑄鐵平臺產品, 將DIN標準的具體要求講述: DIN876設計 點在于測量表面的度,底部具備至少三個支撐點。鑄鐵平臺的設計將是例如允許作用在表面上的力朝著所述支撐點,以小化失真被引導的。
FLATNESS測量(liang)在20°C(68°F)標準溫度(du)。測量(liang)表面(mian)的(de)(de)允(yun)許變化到的(de)(de)平面(mian)以(yi)微米(μ)或密耳= 0.001英寸(cun),其中(zhong)L是(shi)該板的(de)(de)長邊的(de)(de)長度(du)。
泊鑄(zhu)DIN標準鑄(zhu)鐵平臺加工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝(yi)流程及設備(bei)(bei):一、鑄(zhu)造:采用(yong)(yong)樹脂砂(sha)消(xiao)失模,沖天(tian)爐(lu)熔煉(lian);結合(he)實際情況取加工(gong)(gong)(gong)(gong)量;制造鑄(zhu)造工(gong)(gong)(gong)(gong)藝(yi)收縮率0.8,反(fan)變(bian)形量為3mm/m;模型(xing)——檢驗——造型(xing)——檢驗——烘干——合(he)箱——澆(jiao)注——測(ce)(ce)試——清理——檢驗——鑄(zhu)造毛坯成型(xing)。所需(xu)設備(bei)(bei):4mX8m烘干窯、10T/n、15T/n、熔煉(lian)用(yong)(yong)沖天(tian)爐(lu)10T、5T、8T。鐵水包QI-2GAJF、碳(tan)硫聯合(he)測(ce)(ce)定儀、100T拉力實驗機。一次去除內應力、時(shi)效溫(wen)度(du)550度(du)、所需(xu)設備(bei)(bei)4mX8m退火窯。粗加工(gong)(gong)(gong)(gong):劃線、粗加工(gong)(gong)(gong)(gong)留(liu)余量5mm。二次去除內應力與(yu)一次相(xiang)同。加工(gong)(gong)(gong)(gong):加工(gong)(gong)(gong)(gong)上下(xia)面,留(liu)余量0.2-0.3mm。并加工(gong)(gong)(gong)(gong)周邊(bian)四(si)面達到要求。后加工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)作面,倒角。