汽車(che)的車(che)門(men)下部外飾(shi)板(ban)是(shi)通(tong)過卡扣與鈑金件卡接在一(yi)起,外飾(shi)板(ban)的邊緣位置(zhi)與鈑金貼合(he),通(tong)過雙(shuang)面膠粘接固(gu)定。
1、汽車(che)覆蓋件(jian)(jian)(簡稱覆蓋件(jian)(jian))是指(zhi)構(gou)成汽車(che)車(che)身(shen)或(huo)駕駛室、覆蓋發動(dong)機和(he)底盤的(de)(de)(de)異形體(ti)表(biao)面和(he)內部的(de)(de)(de)汽車(che)零(ling)件(jian)(jian)。汽車(che)覆蓋件(jian)(jian)既是外觀裝飾性的(de)(de)(de)零(ling)件(jian)(jian),又(you)是封閉薄殼狀的(de)(de)(de)受力零(ling)件(jian)(jian);
2、覆蓋(gai)(gai)件表面(mian)上任何微小的(de)(de)(de)缺(que)陷(xian)都(dou)會在涂(tu)漆后引起光線的(de)(de)(de)漫反射而損壞外形(xing)的(de)(de)(de)美觀,因此(ci)覆蓋(gai)(gai)件表面(mian)不允許有波紋、皺折(zhe)、邊緣拉(la)痕和其他破壞表面(mian)美感的(de)(de)(de)缺(que)陷(xian)。歐、美、日等(deng)發達國家生產的(de)(de)(de)A級表面(mian)精度的(de)(de)(de)汽車覆蓋(gai)(gai)件有引擎(qing)蓋(gai)(gai)板;
3、車(che)頂(ding)蓋(gai)(gai)(gai)(gai),左、右車(che)側(ce)圍,前、后(hou)車(che)門,前、后(hou)、左、右翼(yi)子板(ban)(ban)(ban)(ban)(ban),行禮箱蓋(gai)(gai)(gai)(gai)板(ban)(ban)(ban)(ban)(ban),發(fa)動(dong)機(ji)前支(zhi)撐板(ban)(ban)(ban)(ban)(ban),發(fa)動(dong)機(ji)前裙(qun)板(ban)(ban)(ban)(ban)(ban),前圍上(shang)蓋(gai)(gai)(gai)(gai)板(ban)(ban)(ban)(ban)(ban),后(hou)圍板(ban)(ban)(ban)(ban)(ban),后(hou)圍上(shang)蓋(gai)(gai)(gai)(gai)板(ban)(ban)(ban)(ban)(ban),前裙(qun)板(ban)(ban)(ban)(ban)(ban),前框架,前翼(yi)子板(ban)(ban)(ban)(ban)(ban),車(che)輪擋泥(ni)板(ban)(ban)(ban)(ban)(ban)、后(hou)翼(yi)子板(ban)(ban)(ban)(ban)(ban)、后(hou)圍板(ban)(ban)(ban)(ban)(ban)、行李(li)倉(cang)蓋(gai)(gai)(gai)(gai),后(hou)圍上(shang)蓋(gai)(gai)(gai)(gai)板(ban)(ban)(ban)(ban)(ban)、頂(ding)蓋(gai)(gai)(gai)(gai)、前圍側(ce)板(ban)(ban)(ban)(ban)(ban)、前圍板(ban)(ban)(ban)(ban)(ban)、前圍上(shang)蓋(gai)(gai)(gai)(gai)板(ban)(ban)(ban)(ban)(ban)、前擋泥(ni)板(ban)(ban)(ban)(ban)(ban)、發(fa)動(dong)機(ji)罩(zhao)。覆蓋(gai)(gai)(gai)(gai)件的(de)制造是(shi)汽車(che)車(che)身制造的(de)關(guan)鍵環節。
前(qian)圍(wei)板(ban)是指發(fa)動機艙(cang)與車(che)(che)(che)廂之間的隔(ge)板(ban),它和(he)地板(ban)、前(qian)立柱(zhu)聯接,安(an)裝在前(qian)圍(wei)上蓋板(ban)之下(xia)。前(qian)圍(wei)板(ban)上有許多孔口,作為(wei)操縱(zong)用(yong)的拉(la)線、拉(la)桿、管路和(he)電線束通過之用(yong),還(huan)要配(pei)合踏板(ban)、方向機柱(zhu)等機件(jian)安(an)裝位置。為(wei)防止發(fa)動機艙(cang)里的廢氣(qi)、高溫、噪聲(sheng)竄入車(che)(che)(che)廂,前(qian)圍(wei)板(ban)上要有密封(feng)措施和(he)隔(ge)熱裝置。在發(fa)生(sheng)意(yi)外事故時(shi),它應具有足夠的強度和(he)剛度。對比(bi)車(che)(che)(che)身(shen)其(qi)它部件(jian)而(er)言,前(qian)圍(wei)板(ban)裝配(pei)最重要的工藝技術是密封(feng)和(he)隔(ge)熱,它的優劣往(wang)往(wang)反映了(le)車(che)(che)(che)輛運行(xing)的質量。
康果
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