防(fang)護(hu)(hu)期(qi)長(chang)(chang)：噴(pen)(pen)鋅(xin)(xin)(xin)(xin)(xin)、噴(pen)(pen)鋁(lv)(lv)(lv)復(fu)合(he)(he)涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)、防(fang)護(hu)(hu)有(you)(you)(you)(you)效期(qi)一(yi)般可(ke)達２０－３０年(nian)，在大氣(qi)中(zhong)最長(chang)(chang)有(you)(you)(you)(you)效期(qi)國(guo)外達６０年(nian)之久(jiu)的(de)(de)(de)記錄，而有(you)(you)(you)(you)機涂(tu)(tu)(tu)裝的(de)(de)(de)防(fang)護(hu)(hu)期(qi)一(yi)般為３－８年(nian)。（２）結合(he)(he)強度(du)比(bi)有(you)(you)(you)(you)機涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)高(gao)，達到(dao)２－３kgf/mm2。（３）耐高(gao)溫：噴(pen)(pen)鋁(lv)(lv)(lv)涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)經擴散處(chu)理(li)，可(ke)在９００℃高(gao)溫下抗(kang)氧化(hua)；鋅(xin)(xin)(xin)(xin)(xin)涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)亦可(ke)承受４５０℃（４）不(bu)存在老化(hua)變質問題（５）耐磨、耐沖刷、抗(kang)擦(ca)傷性(xing)能好。噴(pen)(pen)鋅(xin)(xin)(xin)(xin)(xin)、噴(pen)(pen)鋁(lv)(lv)(lv)涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)比(bi)較噴(pen)(pen)鋅(xin)(xin)(xin)(xin)(xin)涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)是(shi)(shi)國(guo)外應用(yong)最早的(de)(de)(de)一(yi)種陰(yin)極(ji)保護(hu)(hu)涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)，６０年(nian)代以前長(chang)(chang)效防(fang)護(hu)(hu)大部(bu)分采用(yong)噴(pen)(pen)鋅(xin)(xin)(xin)(xin)(xin)涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)。但是(shi)(shi)由(you)于(yu)(yu)鋅(xin)(xin)(xin)(xin)(xin)層(ceng)(ceng)(ceng)(ceng)是(shi)(shi)一(yi)種犧(xi)牲陽極(ji)材料，因此(ci)噴(pen)(pen)鋅(xin)(xin)(xin)(xin)(xin)涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)防(fang)腐速率(lv)比(bi)噴(pen)(pen)鋁(lv)(lv)(lv)涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)高(gao)，其耐蝕(shi)(shi)期(qi)與(yu)厚(hou)(hou)度(du)成(cheng)正(zheng)比(bi)，要達到(dao)長(chang)(chang)效防(fang)蝕(shi)(shi)、噴(pen)(pen)鋅(xin)(xin)(xin)(xin)(xin)涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)應有(you)(you)(you)(you)一(yi)定厚(hou)(hou)度(du)；（２）鋅(xin)(xin)(xin)(xin)(xin)的(de)(de)(de)密度(du)（7.09/cm3）。比(bi)鋁(lv)(lv)(lv)（2.7cm3）高(gao)2.6倍，因此(ci)噴(pen)(pen)涂(tu)(tu)(tu)相同厚(hou)(hou)度(du)的(de)(de)(de)涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)，鋅(xin)(xin)(xin)(xin)(xin)的(de)(de)(de)消耗量是(shi)(shi)鋁(lv)(lv)(lv)的(de)(de)(de)2.6倍。國(guo)外資料報道(dao)，噴(pen)(pen)涂(tu)(tu)(tu)等效涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)厚(hou)(hou)度(du)的(de)(de)(de)情況下，鋅(xin)(xin)(xin)(xin)(xin)比(bi)鋁(lv)(lv)(lv)涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)成(cheng)本貴一(yi)倍；（３）噴(pen)(pen)鋅(xin)(xin)(xin)(xin)(xin)所(suo)形成(cheng)的(de)(de)(de)ZnO粉塵對(dui)人體呼吸(xi)道(dao)有(you)(you)(you)(you)危(wei)害；（４）噴(pen)(pen)鋅(xin)(xin)(xin)(xin)(xin)時由(you)于(yu)(yu)空(kong)氣(qi)中(zhong)CO含(han)量不(bu)足，不(bu)能形成(cheng)穩定的(de)(de)(de)ZnCO3保護(hu)(hu)膜，而易疏(shu)松的(de)(de)(de)Zn(OH)2，在鋅(xin)(xin)(xin)(xin)(xin)涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)上產生許多“白銹(xiu)”，腐蝕(shi)(shi)率(lv)升高(gao)；（５）由(you)于(yu)(yu)工業區大氣(qi)、城市大氣(qi)中(zhong)SO2含(han)量較高(gao)，使(shi)雨水酸度(du)增加(jia)(jia)，也(ye)能破壞ZnCO3膜的(de)(de)(de)穩定性(xing)，使(shi)鋅(xin)(xin)(xin)(xin)(xin)涂(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)腐蝕(shi)(shi)速率(lv)加(jia)(jia)快。

用(yong)(yong)增強涂(tu)(tu)(tu)層(ceng)與工(gong)(gong)(gong)(gong)件結合強度熱(re)噴涂(tu)(tu)(tu)工(gong)(gong)(gong)(gong)藝是噴涂(tu)(tu)(tu)手法當中的一種，金屬(shu)噴涂(tu)(tu)(tu)采用(yong)(yong)這種手法能夠(gou)根據受(shou)熱(re)情況的不(bu)同得到相應可(ke)以呈現出來的效果(guo)。熱(re)噴涂(tu)(tu)(tu)加工(gong)(gong)(gong)(gong)是將熔(rong)融狀態的噴涂(tu)(tu)(tu)材(cai)料(liao)，通過高速氣流使(shi)其霧化噴射在(zai)零件表面(mian)上，形成噴涂(tu)(tu)(tu)層(ceng)的一種金屬(shu)表面(mian)加工(gong)(gong)(gong)(gong)方(fang)法。我們把(ba)特殊的工(gong)(gong)(gong)(gong)作表面(mian)叫(jiao) “涂(tu)(tu)(tu)層(ceng)”，把(ba)制造涂(tu)(tu)(tu)層(ceng)的工(gong)(gong)(gong)(gong)作方(fang)法叫(jiao)“熱(re)噴涂(tu)(tu)(tu)”，它(ta)是采用(yong)(yong)各種熱(re)源進行噴涂(tu)(tu)(tu)和噴焊的總稱。熱(re)噴涂(tu)(tu)(tu)加工(gong)(gong)(gong)(gong)的涂(tu)(tu)(tu)層(ceng)有兩(liang)種，分(fen)別(bie)為(wei)噴涂(tu)(tu)(tu)層(ceng)和噴熔(rong)層(ceng)。那么(me)，這兩(liang)種熱(re)噴涂(tu)(tu)(tu)技術之(zhi)間有什么(me)區別(bie)呢? 1、工(gong)(gong)(gong)(gong)件受(shou)熱(re)情況的不(bu)同

舟山生產熱噴涂廠哪家好特征(1)噴涂材料須是導電的。(2)電弧溫度低于等離子體，但高于氧乙炔火焰，霧化絲的壓縮空氣壓力較高，噴涂層更致密。(3)同時送兩根線，噴涂效率高。舟山生產熱噴涂廠哪家好使用適(shi)用于(yu)噴施大(da)型軸、輥及(ji)大(da)型結構件的長期(qi)防護。

噴(pen)(pen)涂層不能(neng)承(cheng)(cheng)(cheng)受沖(chong)擊(ji)載荷和較(jiao)高(gao)(gao)的(de)(de)接觸應(ying)力，適用(yong)于各種面接觸配合(he)。噴(pen)(pen)熔層結(jie)合(he)強度大，可承(cheng)(cheng)(cheng)受沖(chong)擊(ji)載荷，可用(yong)于線接觸等場合(he)，能(neng)承(cheng)(cheng)(cheng)受較(jiao)高(gao)(gao)的(de)(de)接觸應(ying)力。 工(gong)件(jian)承(cheng)(cheng)(cheng)載負載的(de)(de)能(neng)力也是考驗噴(pen)(pen)涂手(shou)法的(de)(de)一個影響(xiang)因素(su)，使(shi)用(yong)涂層應(ying)和工(gong)件(jian)有較(jiao)高(gao)(gao)的(de)(de)結(jie)合(he)強度，這樣能(neng)夠不影響(xiang)工(gong)件(jian)使(shi)用(yong)。

基(ji)(ji)(ji)(ji)體(ti)(ti)(ti)材(cai)(cai)料(liao)(liao)(liao)不(bu)受(shou)限(xian)(xian)制(zhi)。工(gong)藝好(hao)處優點多多，且基(ji)(ji)(ji)(ji)體(ti)(ti)(ti)材(cai)(cai)料(liao)(liao)(liao)不(bu)受(shou)限(xian)(xian)制(zhi)，為(wei)我(wo)們(men)施工(gong)帶來(lai)了(le)及(ji)大方便，效果一流(liu)。1．涂(tu)層(ceng)(ceng)(ceng)厚(hou)度可(ke)以(yi)從0.01至幾毫米；2．涂(tu)層(ceng)(ceng)(ceng)性能(neng)多種多樣，可(ke)以(yi)形成耐(nai)磨、耐(nai)蝕、隔熱(re)、抗氧(yang)化、絕緣、導電(dian)、防輻射等(deng)具有(you)各種特殊(shu)功能(neng)的涂(tu)層(ceng)(ceng)(ceng)；3．適應性強及(ji)經濟效益好(hao)等(deng)優點；4．基(ji)(ji)(ji)(ji)體(ti)(ti)(ti)材(cai)(cai)料(liao)(liao)(liao)不(bu)受(shou)限(xian)(xian)制(zhi)，可(ke)以(yi)是(shi)金(jin)(jin)屬和非(fei)金(jin)(jin)屬，可(ke)以(yi)在(zai)各種基(ji)(ji)(ji)(ji)體(ti)(ti)(ti)材(cai)(cai)料(liao)(liao)(liao)上噴(pen)涂(tu)； 5．可(ke)噴(pen)涂(tu)的涂(tu)層(ceng)(ceng)(ceng)材(cai)(cai)料(liao)(liao)(liao)極為(wei)廣泛，山(shan)東熱(re)噴(pen)涂(tu)技術可(ke)用來(lai)噴(pen)涂(tu)幾乎所有(you)的固(gu)體(ti)(ti)(ti)工(gong)程材(cai)(cai)料(liao)(liao)(liao),如(ru)硬質合金(jin)(jin)、陶(tao)瓷、金(jin)(jin)屬、石墨(mo)等(deng)；6．噴(pen)涂(tu)過程中(zhong)基(ji)(ji)(ji)(ji)體(ti)(ti)(ti)材(cai)(cai)料(liao)(liao)(liao)溫升小(xiao)，不(bu)產生應力和變形；7．操作工(gong)藝靈活方便，不(bu)受(shou)工(gong)件形狀限(xian)(xian)制(zhi)，施工(gong)方便；