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耐候板寬度-耐候板景觀
耐候板寬度在 500-1400mm 之間。根據不同(tong)的用途(tu),耐(nai)候(hou)板采(cai)用不同(tong)材質鋼(gang)坯軋制(zhi)而成。通常采(cai)用材質有(you)普碳(tan)鋼(gang)、優碳(tan)鋼(gang)、合金結構鋼(gang)、碳(tan)素工(gong)(gong)(gong)具鋼(gang)、不銹(xiu)鋼(gang)、簧鋼(gang)和(he)電工(gong)(gong)(gong)用硅鋼(gang)等。它們主要用于(yu)汽(qi)車工(gong)(gong)(gong)業(ye)、航空工(gong)(gong)(gong)業(ye)、搪瓷工(gong)(gong)(gong)業(ye)、電氣工(gong)(gong)(gong)業(ye)、機械 工(gong)(gong)(gong)業(ye)等部門。耐(nai)候(hou)板除軋制(zhi)后直 接(jie)交貨(huo)之外,還有(you)經過酸洗的、鍍鋅和(he)鍍錫(xi)等種類。
厚(hou)(hou)鋼(gang)板(ban)(ban)(ban)是厚(hou)(hou)度(du)在 4mm 以上的(de)(de)鋼(gang)板(ban)(ban)(ban)的(de)(de)統(tong)稱(cheng),在實(shi)際工(gong)作中,常將厚(hou)(hou) 度(du)小于 20mm的(de)(de)鋼(gang)板(ban)(ban)(ban) 稱(cheng)為(wei)中板(ban)(ban)(ban),厚(hou)(hou)度(du)>20mm 至 60mm 的(de)(de)鋼(gang)板(ban)(ban)(ban)稱(cheng)為(wei)厚(hou)(hou)板(ban)(ban)(ban),厚(hou)(hou)度(du)> 60mm 的(de)(de)鋼(gang)板(ban)(ban)(ban)則需在專門 的(de)(de)特厚(hou)(hou)板(ban)(ban)(ban)軋機(ji)上軋制,故稱(cheng)特厚(hou)(hou)板(ban)(ban)(ban)。厚(hou)(hou)鋼(gang)板(ban)(ban)(ban)的(de)(de)寬度(du)從 0.6mm-3.0mm。
耐候板(ban)淬火是(shi)為(wei)(wei)了進步整體硬度而(er)停止的熱處置。但(dan)有很(hen)多耐候板(ban)用(yong)于制造只請求外表硬而(er)內(nei)部(bu)軟的機械零件。耐候板(ban)就有以此(ci)效果為(wei)(wei)目(mu)的的操作辦法,叫(jiao)做外表硬化。
耐候(hou)板的外(wai)表硬化有以(yi)下(xia)幾種:
(1)高頻(pin)(pin)淬(cui)火(huo):把耐(nai)候(hou)(hou)板放進高頻(pin)(pin)線圈內并接通(tong)高頻(pin)(pin)電流,此時工件內就產(chan)生誘導電流。而高頻(pin)(pin)電流只(zhi)集(ji)中在耐(nai)候(hou)(hou)板的(de)外表,所以只(zhi)要耐(nai)候(hou)(hou)板的(de)外表被加熱(re)。這種方式(shi)加熱(re)并淬(cui)火(huo)的(de)辦法叫做高頻(pin)(pin)感應加熱(re)淬(cui)火(huo)。
(2)火焰淬(cui)火:這是采用氧氣(qi)等氣(qi)體的(de)火焰停止(zhi)加熱(re)的(de)淬(cui)火辦法
(3)滲(shen)(shen)(shen)(shen)碳(tan)(tan)(tan)淬火:為(wei)到達(da)(da)只(zhi)增加耐(nai)(nai)(nai)候(hou)(hou)板(ban)(ban)(ban)(ban)外表含碳(tan)(tan)(tan)量(liang)的(de)目(mu)的(de),把(ba)耐(nai)(nai)(nai)候(hou)(hou)板(ban)(ban)(ban)(ban)放進(jin)滲(shen)(shen)(shen)(shen)碳(tan)(tan)(tan)劑內停(ting)止(zhi)加熱滲(shen)(shen)(shen)(shen)碳(tan)(tan)(tan)和淬火的(de)辦法。用作滲(shen)(shen)(shen)(shen)碳(tan)(tan)(tan)劑的(de)有木(mu)炭(tan)、焦炭(tan)等固體滲(shen)(shen)(shen)(shen)碳(tan)(tan)(tan)劑等液體滲(shen)(shen)(shen)(shen)碳(tan)(tan)(tan)劑和CO等氣體滲(shen)(shen)(shen)(shen)碳(tan)(tan)(tan)劑。在這種滲(shen)(shen)(shen)(shen)碳(tan)(tan)(tan)劑里停(ting)止(zhi)加熱,碳(tan)(tan)(tan)元素就(jiu)滲(shen)(shen)(shen)(shen)入到耐(nai)(nai)(nai)候(hou)(hou)板(ban)(ban)(ban)(ban)的(de)外表內,只(zhi)使(shi)耐(nai)(nai)(nai)候(hou)(hou)板(ban)(ban)(ban)(ban)外表變成高碳(tan)(tan)(tan)耐(nai)(nai)(nai)候(hou)(hou)板(ban)(ban)(ban)(ban)。滲(shen)(shen)(shen)(shen)碳(tan)(tan)(tan)淬火層可到達(da)(da)以毫(hao)米為(wei)單位的(de)深度。
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