汽車(che)的(de)(de)車(che)門下部外飾板(ban)是(shi)通(tong)過卡扣與鈑(ban)金件卡接在一(yi)起,外飾板(ban)的(de)(de)邊緣位置與鈑(ban)金貼合,通(tong)過雙(shuang)面膠粘接固定。
1、汽車(che)(che)覆(fu)蓋(gai)件(jian)(簡稱覆(fu)蓋(gai)件(jian))是指(zhi)構成汽車(che)(che)車(che)(che)身或駕(jia)駛室、覆(fu)蓋(gai)發動(dong)機(ji)和(he)底盤(pan)的異形體表(biao)面和(he)內(nei)部的汽車(che)(che)零(ling)(ling)件(jian)。汽車(che)(che)覆(fu)蓋(gai)件(jian)既是外觀裝飾(shi)性的零(ling)(ling)件(jian),又是封(feng)閉薄殼(ke)狀的受(shou)力零(ling)(ling)件(jian);
2、覆蓋(gai)件(jian)表面(mian)上任何微小的(de)(de)缺陷都會在涂漆后引(yin)起(qi)光(guang)線的(de)(de)漫反射(she)而損(sun)壞外形的(de)(de)美觀,因此(ci)覆蓋(gai)件(jian)表面(mian)不允許有(you)波(bo)紋、皺折、邊緣拉痕和其他破壞表面(mian)美感的(de)(de)缺陷。歐、美、日(ri)等發達國家(jia)生(sheng)產(chan)的(de)(de)A級表面(mian)精度的(de)(de)汽車覆蓋(gai)件(jian)有(you)引(yin)擎蓋(gai)板(ban);
3、車(che)(che)頂蓋(gai),左(zuo)、右(you)車(che)(che)側圍(wei),前(qian)(qian)(qian)(qian)(qian)(qian)、后(hou)(hou)(hou)車(che)(che)門,前(qian)(qian)(qian)(qian)(qian)(qian)、后(hou)(hou)(hou)、左(zuo)、右(you)翼子(zi)板(ban)(ban)(ban),行(xing)禮箱蓋(gai)板(ban)(ban)(ban),發動機前(qian)(qian)(qian)(qian)(qian)(qian)支撐板(ban)(ban)(ban),發動機前(qian)(qian)(qian)(qian)(qian)(qian)裙板(ban)(ban)(ban),前(qian)(qian)(qian)(qian)(qian)(qian)圍(wei)上蓋(gai)板(ban)(ban)(ban),后(hou)(hou)(hou)圍(wei)板(ban)(ban)(ban),后(hou)(hou)(hou)圍(wei)上蓋(gai)板(ban)(ban)(ban),前(qian)(qian)(qian)(qian)(qian)(qian)裙板(ban)(ban)(ban),前(qian)(qian)(qian)(qian)(qian)(qian)框架,前(qian)(qian)(qian)(qian)(qian)(qian)翼子(zi)板(ban)(ban)(ban),車(che)(che)輪擋泥板(ban)(ban)(ban)、后(hou)(hou)(hou)翼子(zi)板(ban)(ban)(ban)、后(hou)(hou)(hou)圍(wei)板(ban)(ban)(ban)、行(xing)李倉蓋(gai),后(hou)(hou)(hou)圍(wei)上蓋(gai)板(ban)(ban)(ban)、頂蓋(gai)、前(qian)(qian)(qian)(qian)(qian)(qian)圍(wei)側板(ban)(ban)(ban)、前(qian)(qian)(qian)(qian)(qian)(qian)圍(wei)板(ban)(ban)(ban)、前(qian)(qian)(qian)(qian)(qian)(qian)圍(wei)上蓋(gai)板(ban)(ban)(ban)、前(qian)(qian)(qian)(qian)(qian)(qian)擋泥板(ban)(ban)(ban)、發動機罩。覆(fu)蓋(gai)件的制造是汽車(che)(che)車(che)(che)身制造的關鍵環節。
前(qian)圍板(ban)(ban)是指發(fa)(fa)動機(ji)艙(cang)與車廂(xiang)之間的(de)(de)隔板(ban)(ban),它和(he)地(di)板(ban)(ban)、前(qian)立柱(zhu)(zhu)聯(lian)接,安裝在(zai)前(qian)圍上蓋板(ban)(ban)之下。前(qian)圍板(ban)(ban)上有許(xu)多孔(kong)口,作(zuo)為(wei)操(cao)縱用的(de)(de)拉線(xian)、拉桿、管(guan)路和(he)電線(xian)束通過之用,還(huan)要配(pei)合踏板(ban)(ban)、方向機(ji)柱(zhu)(zhu)等機(ji)件安裝位置。為(wei)防止發(fa)(fa)動機(ji)艙(cang)里的(de)(de)廢氣、高溫、噪聲竄入車廂(xiang),前(qian)圍板(ban)(ban)上要有密封(feng)措施和(he)隔熱裝置。在(zai)發(fa)(fa)生意(yi)外事故時,它應具(ju)有足(zu)夠的(de)(de)強度和(he)剛度。對比車身其它部(bu)件而言,前(qian)圍板(ban)(ban)裝配(pei)最重要的(de)(de)工藝(yi)技術是密封(feng)和(he)隔熱,它的(de)(de)優劣往往反映了車輛運行的(de)(de)質(zhi)量。
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