平(ping)(ping)(ping)(ping)板(ban)(ban)在(zai)(zai)使(shi)(shi)(shi)用(yong)時要(yao)_行安(an)裝調試。然后,把平(ping)(ping)(ping)(ping)板(ban)(ban)的(de)(de)(de)工(gong)(gong)(gong)(gong)作(zuo)(zuo)面(mian)擦拭干凈,在(zai)(zai)確認(ren)沒有(you)(you)問題的(de)(de)(de)情況(kuang)下使(shi)(shi)(shi)用(yong),使(shi)(shi)(shi)用(yong)過(guo)程中(zhong)(zhong),要(yao)注意避免工(gong)(gong)(gong)(gong)件(jian)和平(ping)(ping)(ping)(ping)板(ban)(ban)的(de)(de)(de)工(gong)(gong)(gong)(gong)作(zuo)(zuo)面(mian)有(you)(you)過(guo)激的(de)(de)(de)碰撞,防止(zhi)損(sun)壞(huai)(huai)平(ping)(ping)(ping)(ping)板(ban)(ban)的(de)(de)(de)工(gong)(gong)(gong)(gong)作(zuo)(zuo)面(mian);工(gong)(gong)(gong)(gong)件(jian)的(de)(de)(de)重量(liang)更(geng)不可(ke)以_過(guo)平(ping)(ping)(ping)(ping)板(ban)(ban)的(de)(de)(de)額定(ding)載(zai)(zai)荷,否(fou)則會造成(cheng)工(gong)(gong)(gong)(gong)作(zuo)(zuo)質(zhi)量(liang)降低(di),還有(you)(you)可(ke)能損(sun)壞(huai)(huai)平(ping)(ping)(ping)(ping)板(ban)(ban)的(de)(de)(de)結構,甚至(zhi)會造成(cheng)平(ping)(ping)(ping)(ping)板(ban)(ban)變(bian)形,使(shi)(shi)(shi)之損(sun)壞(huai)(huai),無法使(shi)(shi)(shi)用(yong)。 平(ping)(ping)(ping)(ping)板(ban)(ban)在(zai)(zai)使(shi)(shi)(shi)用(yong)時要(yao)_行安(an)裝調試。然后,把平(ping)(ping)(ping)(ping)板(ban)(ban)的(de)(de)(de)工(gong)(gong)(gong)(gong)作(zuo)(zuo)面(mian)擦拭干凈,在(zai)(zai)確認(ren)沒有(you)(you)問題的(de)(de)(de)情況(kuang)下使(shi)(shi)(shi)用(yong),使(shi)(shi)(shi)用(yong)過(guo)程中(zhong)(zhong),要(yao)注意避免工(gong)(gong)(gong)(gong)件(jian)和平(ping)(ping)(ping)(ping)板(ban)(ban)的(de)(de)(de)工(gong)(gong)(gong)(gong)作(zuo)(zuo)面(mian)有(you)(you)過(guo)激的(de)(de)(de)碰撞,防止(zhi)損(sun)壞(huai)(huai)平(ping)(ping)(ping)(ping)板(ban)(ban)的(de)(de)(de)工(gong)(gong)(gong)(gong)作(zuo)(zuo)面(mian);工(gong)(gong)(gong)(gong)件(jian)的(de)(de)(de)重量(liang)更(geng)不可(ke)以_過(guo)平(ping)(ping)(ping)(ping)板(ban)(ban)的(de)(de)(de)額定(ding)載(zai)(zai)荷,否(fou)則會造成(cheng)工(gong)(gong)(gong)(gong)作(zuo)(zuo)質(zhi)量(liang)降低(di),還有(you)(you)可(ke)能損(sun)壞(huai)(huai)平(ping)(ping)(ping)(ping)板(ban)(ban)的(de)(de)(de)結構,甚至(zhi)會造成(cheng)平(ping)(ping)(ping)(ping)板(ban)(ban)變(bian)形,使(shi)(shi)(shi)之損(sun)壞(huai)(huai),無法使(shi)(shi)(shi)用(yong)。
鑄鐵平板的質量檢測:
1、鑄鐵平板(鑄鐵平臺)工作表面不(bu)應有銹跡、劃痕、碰傷及(ji)其他影(ying)響使用的外觀缺陷。
2、鑄鐵平(ping)板(鑄鐵平(ping)臺)工(gong)作表面不應(ying)有砂(sha)孔、氣孔、裂(lie)紋、夾渣(zha)及縮松等鑄造缺陷。各種(zhong)鑄造表面應(ying)_型砂(sha)、且表面平(ping)整,涂漆牢固。各棱邊應(ying)修鈍(dun)。在(zai)精度(du)等級低(di)于(yu)(yu)(yu)“00”級的(de)平(ping)板工(gong)作面上,對于(yu)(yu)(yu)直徑小于(yu)(yu)(yu)15mm的(de)砂(sha)孔允許用相(xiang)同的(de)材(cai)料(liao)堵塞,其硬(ying)度(du)應(ying)低(di)于(yu)(yu)(yu)周圍材(cai)料(liao)的(de)硬(ying)度(du)。在(zai)工(gong)作面上堵塞的(de)部(bu)位(wei)應(ying)不多于(yu)(yu)(yu)四處,其相(xiang)互之間的(de)距離應(ying)不小于(yu)(yu)(yu)80mm。
3、在鑄鐵平板(鑄鐵平臺)的相對兩個(ge)側(ce)面(mian)上(shang),應(ying)設置有安裝(zhuang)手柄(bing)、吊(diao)(diao)環等(deng)吊(diao)(diao)裝(zhuang)設施的螺紋孔或圓柱(zhu)孔。設計(ji)吊(diao)(diao)裝(zhuang)位置時應(ying)考(kao)慮盡量減(jian)少因吊(diao)(diao)裝(zhuang)而(er)引起的變動。
4、根據用戶要求,在板工作面上設置(zhi)螺紋孔(kong)或(huo)溝(gou)槽(cao)后(hou),這些(xie)部位(wei)不應(ying)出現高于工作面的凸起現象。
5、鑄(zhu)鐵平板(鑄(zhu)鐵平臺)應采用_細顆料的(de)灰(hui)口鑄(zhu)鐵或合金鑄(zhu)鐵制造。
6、鑄(zhu)鐵(tie)平(ping)板(鑄(zhu)鐵(tie)平(ping)臺(tai))工(gong)作(zuo)面的(de)硬(ying)度應(ying)為HB 170-220。
7、鑄鐵平(ping)(ping)板(鑄鐵平(ping)(ping)臺)工(gong)(gong)作面應采用(yong)刮(gua)削(xue)工(gong)(gong)藝(yi),對于(yu)“3”級平(ping)(ping)板工(gong)(gong)作面也可(ke)以(yi)采用(yong)刨削(xue)工(gong)(gong)藝(yi),刨削(xue)工(gong)(gong)作表面的表面粗糙度按輪廓(kuo)算術平(ping)(ping)均偏差Ra值應不(bu)大于(yu)5um
8、鑄鐵平板(鑄鐵平臺)應經過穩定性處理和去磁。
鑄鐵平(ping)板(ban)的(de)制造標準:
按(an)JB/T7974-1999制造
鑄鐵平板平面度:
1 00級:其平面度(μm)= 1+1.6D2 (D為平臺對角線長或直徑),用於高度精(jing)密 之測(ce)定(ding)之用, 常用於實驗室(shi)。
2. 0級(ji):其平面度(du)為AA級(ji)之兩倍誤差,常用於工具(ju)檢(jian)驗室作精密(mi)量具(ju)之檢(jian)驗之用。
3. 1級(ji):其平面度為AA級(ji)之(zhi)四倍(bei)誤差,常(chang)用於工具檢驗室或(huo)在現場檢驗量具或(huo)劃線之(zhi)用。