汽車(che)的車(che)門(men)下部外(wai)飾板(ban)(ban)是通過卡扣與(yu)鈑金件卡接在一起,外(wai)飾板(ban)(ban)的邊(bian)緣位(wei)置與(yu)鈑金貼合,通過雙面膠粘接固定。
1、汽(qi)(qi)(qi)車覆蓋(gai)件(jian)(簡稱覆蓋(gai)件(jian))是指構成汽(qi)(qi)(qi)車車身或駕駛室(shi)、覆蓋(gai)發動機和底盤的(de)異(yi)形(xing)體(ti)表(biao)面和內部(bu)的(de)汽(qi)(qi)(qi)車零(ling)(ling)(ling)件(jian)。汽(qi)(qi)(qi)車覆蓋(gai)件(jian)既是外觀裝(zhuang)飾性的(de)零(ling)(ling)(ling)件(jian),又是封閉(bi)薄殼狀的(de)受力零(ling)(ling)(ling)件(jian);
2、覆(fu)蓋(gai)件(jian)(jian)表面(mian)(mian)上任何微小(xiao)的缺陷(xian)都會(hui)在涂(tu)漆后引起光線的漫反射而損壞外形(xing)的美(mei)(mei)觀,因此覆(fu)蓋(gai)件(jian)(jian)表面(mian)(mian)不(bu)允許有波紋(wen)、皺折、邊緣拉(la)痕(hen)和其他破壞表面(mian)(mian)美(mei)(mei)感(gan)的缺陷(xian)。歐(ou)、美(mei)(mei)、日(ri)等發達國家生產的A級表面(mian)(mian)精度的汽車覆(fu)蓋(gai)件(jian)(jian)有引擎蓋(gai)板(ban);
3、車(che)頂(ding)蓋(gai),左、右車(che)側圍(wei)(wei)(wei),前(qian)、后(hou)(hou)車(che)門,前(qian)、后(hou)(hou)、左、右翼(yi)子(zi)板(ban)(ban)(ban)(ban),行禮(li)箱蓋(gai)板(ban)(ban)(ban)(ban),發(fa)動(dong)機前(qian)支(zhi)撐板(ban)(ban)(ban)(ban),發(fa)動(dong)機前(qian)裙板(ban)(ban)(ban)(ban),前(qian)圍(wei)(wei)(wei)上蓋(gai)板(ban)(ban)(ban)(ban),后(hou)(hou)圍(wei)(wei)(wei)板(ban)(ban)(ban)(ban),后(hou)(hou)圍(wei)(wei)(wei)上蓋(gai)板(ban)(ban)(ban)(ban),前(qian)裙板(ban)(ban)(ban)(ban),前(qian)框(kuang)架,前(qian)翼(yi)子(zi)板(ban)(ban)(ban)(ban),車(che)輪擋(dang)(dang)泥(ni)板(ban)(ban)(ban)(ban)、后(hou)(hou)翼(yi)子(zi)板(ban)(ban)(ban)(ban)、后(hou)(hou)圍(wei)(wei)(wei)板(ban)(ban)(ban)(ban)、行李倉蓋(gai),后(hou)(hou)圍(wei)(wei)(wei)上蓋(gai)板(ban)(ban)(ban)(ban)、頂(ding)蓋(gai)、前(qian)圍(wei)(wei)(wei)側板(ban)(ban)(ban)(ban)、前(qian)圍(wei)(wei)(wei)板(ban)(ban)(ban)(ban)、前(qian)圍(wei)(wei)(wei)上蓋(gai)板(ban)(ban)(ban)(ban)、前(qian)擋(dang)(dang)泥(ni)板(ban)(ban)(ban)(ban)、發(fa)動(dong)機罩。覆蓋(gai)件的(de)制(zhi)造是(shi)汽車(che)車(che)身制(zhi)造的(de)關鍵環節。
前圍(wei)板(ban)是指發(fa)動機艙與車廂之間的隔(ge)(ge)板(ban),它(ta)和地(di)板(ban)、前立柱(zhu)聯接,安裝(zhuang)在前圍(wei)上蓋(gai)板(ban)之下。前圍(wei)板(ban)上有(you)許多孔(kong)口,作為(wei)操(cao)縱(zong)用的拉線、拉桿、管路和電線束(shu)通過(guo)之用,還要(yao)配合踏(ta)板(ban)、方向(xiang)機柱(zhu)等機件安裝(zhuang)位置。為(wei)防止發(fa)動機艙里(li)的廢氣、高(gao)溫、噪聲(sheng)竄入車廂,前圍(wei)板(ban)上要(yao)有(you)密封措施(shi)和隔(ge)(ge)熱(re)裝(zhuang)置。在發(fa)生意外事故時,它(ta)應(ying)具有(you)足夠的強度和剛度。對比(bi)車身其它(ta)部(bu)件而(er)言,前圍(wei)板(ban)裝(zhuang)配最重要(yao)的工藝技術(shu)是密封和隔(ge)(ge)熱(re),它(ta)的優劣往(wang)往(wang)反映(ying)了(le)車輛運行(xing)的質量。
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