無論是(shi)機械部(bu)件(jian)還是(shi)金(jin)屬部(bu)件(jian)，突出(chu)的(de)(de)問題是(shi)表面(mian)(mian)磨損(sun)(sun)或腐蝕，或者(zhe)(zhe)兩者(zhe)(zhe)兼而有之。下面(mian)(mian)簡(jian)要介紹涂(tu)(tu)層(ceng)(ceng)(ceng)(ceng)應用(yong)指南：1.耐磨-高溫(wen)和低溫(wen)技(ji)術的(de)(de)應用(yong)領域。這些涂(tu)(tu)層(ceng)(ceng)(ceng)(ceng)可分為(wei)以(yi)下幾類：(1)抗粘著磨損(sun)(sun)或劃痕-當兩個表面(mian)(mian)相對滑(hua)動(dong)，碎片從一個表面(mian)(mian)向另一個表面(mian)(mian)滑(hua)動(dong)時，就會(hui)產生(sheng)(sheng)粘著磨損(sun)(sun)或劃痕。典型的(de)(de)涂(tu)(tu)層(ceng)(ceng)(ceng)(ceng)是(shi)鈷基碳化(hua)鎢、鎳(nie)鉻(ge)/鉻(ge)碳化(hua)物涂(tu)(tu)層(ceng)(ceng)(ceng)(ceng)。(2)磨料磨損(sun)(sun)-磨粒(li)磨損(sun)(sun)發生(sheng)(sheng)在較軟的(de)(de)表面(mian)(mian)上，兩面(mian)(mian)之間有磨損(sun)(sun)。纖維和絲線(xian)高速穿過表面(mian)(mian)時也(ye)會(hui)發生(sheng)(sheng)磨粒(li)磨損(sun)(sun)。專有的(de)(de)典型涂(tu)(tu)層(ceng)(ceng)(ceng)(ceng)是(shi)鈷基鎳(nie)鉻(ge)合金(jin)、自熔(rong)合金(jin)混合鉬、氧化(hua)鉻(ge)涂(tu)(tu)層(ceng)(ceng)(ceng)(ceng)。

技術優(you)點優(you)勢(shi)1.設備(bei)簡(jian)單，可(ke)(ke)(ke)就(jiu)地施(shi)工(gong)。2.工(gong)藝靈活，操作程序少(shao)，可(ke)(ke)(ke)快速修復，縮短加(jia)工(gong)時間。3.適應性(xing)強，一(yi)般不受工(gong)件大小(xiao)和(he)位置的(de)限制(zhi)。4.可(ke)(ke)(ke)操作涂(tu)層(ceng)(ceng)厚(hou)度。5.除噴(pen)焊外(wai)(wai)，基(ji)體加(jia)熱(re)(re)溫(wen)度低，工(gong)件變形(xing)小(xiao)，金相(xiang)組(zu)(zu)織和(he)功能(neng)變化小(xiao)。6.可(ke)(ke)(ke)根據各種(zhong)固(gu)體材料的(de)外(wai)(wai)觀制(zhi)備(bei)各種(zhong)防護涂(tu)層(ceng)(ceng)和(he)功能(neng)涂(tu)層(ceng)(ceng)，適用于(yu)各種(zhong)基(ji)體材料。特(te)點從熱(re)(re)噴(pen)涂(tu)技術的(de)原理和(he)過程分(fen)析(xi)，熱(re)(re)噴(pen)涂(tu)技術具有以下特(te)點。由(you)于(yu)熱(re)(re)源的(de)溫(wen)度范圍很廣，可(ke)(ke)(ke)噴(pen)涂(tu)的(de)涂(tu)層(ceng)(ceng)數(shu)據幾乎包含了所有的(de)固(gu)體工(gong)程數(shu)據，如(ru)金屬(shu)(shu)、合金、陶(tao)瓷、金屬(shu)(shu)陶(tao)瓷、塑料以及由(you)它(ta)們組(zu)(zu)成的(de)復合材料。因此(ci)，可(ke)(ke)(ke)以賦(fu)予基(ji)體各種(zhong)功能(neng)(如(ru)耐磨，耐蝕，耐高溫(wen)，抗(kang)氧化，絕緣，隔熱(re)(re)，生(sheng)物相(xiang)容(rong)，紅外(wai)(wai)吸(xi)收等)。

工藝方法中應用(yong)(yong)(yong)較廣泛的(de)有火焰(yan)噴涂、電弧噴涂、等(deng)(deng)離(li)子噴涂、爆炸(zha)噴涂和(he)超音速(su)噴涂技術。而大(da)多數陶(tao)瓷(ci)(ci)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)都具有離(li)子鍵(jian)(jian)或共價鍵(jian)(jian)結(jie)(jie)構，鍵(jian)(jian)能(neng)高(gao)，原子間(jian)結(jie)(jie)合(he)(he)力(li)(li)強，表面自由能(neng)低，從而賦予了陶(tao)瓷(ci)(ci)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)高(gao)熔點(dian)、高(gao)剛度(du)、高(gao)化(hua)學(xue)穩(wen)定性、高(gao)絕(jue)緣絕(jue)熱能(neng)力(li)(li)、熱膨脹系數小(xiao)、摩擦系數小(xiao)等(deng)(deng)特性。但與金(jin)(jin)屬材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)相比，其塑(su)性變形能(neng)力(li)(li)差、對應力(li)(li)集中和(he)裂紋敏(min)感(gan)。顯然(ran)，用(yong)(yong)(yong)陶(tao)瓷(ci)(ci)作為機械(xie)(xie)結(jie)(jie)構材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)，其可靠性比金(jin)(jin)屬材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)差，機械(xie)(xie)加工困難(nan)，成本高(gao)。然(ran)而，采(cai)用(yong)(yong)(yong)技術，在金(jin)(jin)屬基(ji)體上制備陶(tao)瓷(ci)(ci)涂層，能(neng)把金(jin)(jin)屬材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)的(de)特點(dian)和(he)陶(tao)瓷(ci)(ci)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)的(de)特點(dian)有機地結(jie)(jie)合(he)(he)起(qi)來，獲得復合(he)(he)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)結(jie)(jie)構。由于(yu)這(zhe)種復合(he)(he)材(cai)(cai)(cai)(cai)料(liao)(liao)(liao)結(jie)(jie)構具有異(yi)常優越的(de)綜合(he)(he)性能(neng)，使(shi)得熱噴涂技術迅速(su)從高(gao)尖領域擴展(zhan)應用(yong)(yong)(yong)到(dao)能(neng)源、交通、冶金(jin)(jin)、輕紡、石化(hua)、機械(xie)(xie)等(deng)(deng)民用(yong)(yong)(yong)工業領域。

宜春優質金屬噴涂用優質金屬噴涂增(zeng)強(qiang)涂(tu)(tu)(tu)層(ceng)(ceng)與工(gong)件(jian)(jian)結合強(qiang)度熱(re)噴(pen)(pen)(pen)(pen)(pen)(pen)涂(tu)(tu)(tu)工(gong)藝是噴(pen)(pen)(pen)(pen)(pen)(pen)涂(tu)(tu)(tu)手(shou)法當中的(de)一種(zhong)(zhong)，金屬噴(pen)(pen)(pen)(pen)(pen)(pen)涂(tu)(tu)(tu)采(cai)用(yong)這種(zhong)(zhong)手(shou)法能夠根據受熱(re)情況(kuang)的(de)不(bu)同得(de)到相應可以呈現出來的(de)效(xiao)果。熱(re)噴(pen)(pen)(pen)(pen)(pen)(pen)涂(tu)(tu)(tu)加(jia)工(gong)是將(jiang)熔融狀態的(de)噴(pen)(pen)(pen)(pen)(pen)(pen)涂(tu)(tu)(tu)材料，通過高速氣(qi)流使其霧化噴(pen)(pen)(pen)(pen)(pen)(pen)射在零件(jian)(jian)表(biao)面上，形(xing)成噴(pen)(pen)(pen)(pen)(pen)(pen)涂(tu)(tu)(tu)層(ceng)(ceng)的(de)一種(zhong)(zhong)金屬表(biao)面加(jia)工(gong)方法。我們把(ba)特殊的(de)工(gong)作表(biao)面叫(jiao) “涂(tu)(tu)(tu)層(ceng)(ceng)”，把(ba)制造(zao)涂(tu)(tu)(tu)層(ceng)(ceng)的(de)工(gong)作方法叫(jiao)“熱(re)噴(pen)(pen)(pen)(pen)(pen)(pen)涂(tu)(tu)(tu)”，它是采(cai)用(yong)各種(zhong)(zhong)熱(re)源(yuan)進行噴(pen)(pen)(pen)(pen)(pen)(pen)涂(tu)(tu)(tu)和噴(pen)(pen)(pen)(pen)(pen)(pen)焊(han)的(de)總稱。熱(re)噴(pen)(pen)(pen)(pen)(pen)(pen)涂(tu)(tu)(tu)加(jia)工(gong)的(de)涂(tu)(tu)(tu)層(ceng)(ceng)有(you)兩種(zhong)(zhong)，分別(bie)(bie)為噴(pen)(pen)(pen)(pen)(pen)(pen)涂(tu)(tu)(tu)層(ceng)(ceng)和噴(pen)(pen)(pen)(pen)(pen)(pen)熔層(ceng)(ceng)。那么(me)，這兩種(zhong)(zhong)熱(re)噴(pen)(pen)(pen)(pen)(pen)(pen)涂(tu)(tu)(tu)技術之間(jian)有(you)什么(me)區別(bie)(bie)呢(ni)? 1、工(gong)件(jian)(jian)受熱(re)情況(kuang)的(de)不(bu)同