噴焊(han)和(he)噴焊(han)沒有根本(ben)區別(bie)。關(guan)鍵是(shi)(shi)(shi)噴涂(tu)主(zhu)要(yao)(yao)用于(yu)(yu)提高工件(jian)(jian)(jian)表(biao)(biao)面(mian)(mian)(mian)的耐(nai)蝕(shi)性和(he)硬度。噴焊(han)主(zhu)要(yao)(yao)用于(yu)(yu)焊(han)接(jie)(jie)，因為(wei)(wei)焊(han)料(liao)的使用不(bu)(bu)(bu)(bu)同(tong)(tong)。這種(zhong)裝置是(shi)(shi)(shi)通用的。主(zhu)要(yao)(yao)結(jie)(jie)果(guo)如下(xia)(xia)：1)在(zai)不(bu)(bu)(bu)(bu)同(tong)(tong)噴涂(tu)條件(jian)(jian)(jian)下(xia)(xia)加熱工件(jian)(jian)(jian)時(shi)，工件(jian)(jian)(jian)表(biao)(biao)面(mian)(mian)(mian)溫度始終可(ke)以控制(zhi)在(zai)250℃以下(xia)(xia)，工件(jian)(jian)(jian)的原有結(jie)(jie)構不(bu)(bu)(bu)(bu)會發(fa)生(sheng)變(bian)(bian)化，不(bu)(bu)(bu)(bu)會發(fa)生(sheng)變(bian)(bian)形(xing)。這有利(li)于(yu)(yu)復(fu)雜的形(xing)狀，薄(bo)壁，長袖和(he)一(yi)(yi)些重(zhong)要(yao)(yao)的零(ling)件(jian)(jian)(jian)噴出的工件(jian)(jian)(jian)。為(wei)(wei)了使粉(fen)(fen)末(mo)層熔化，燒結(jie)(jie)件(jian)(jian)(jian)的重(zhong)熔溫度可(ke)達900℃，容(rong)易產生(sheng)應(ying)力(li)和(he)變(bian)(bian)形(xing)，大部分工件(jian)(jian)(jian)將進行退火和(he)不(bu)(bu)(bu)(bu)完全退火。2)不(bu)(bu)(bu)(bu)同(tong)(tong)粘結(jie)(jie)狀態下(xia)(xia)噴涂(tu)與基體表(biao)(biao)面(mian)(mian)(mian)的結(jie)(jie)合(he)主(zhu)要(yao)(yao)是(shi)(shi)(shi)機械咬合(he)，但也存在(zai)微焊(han)接(jie)(jie)，結(jie)(jie)合(he)強(qiang)度不(bu)(bu)(bu)(bu)高，一(yi)(yi)般(ban)為(wei)(wei)20 MPa~65 MPa，噴焊(han)是(shi)(shi)(shi)粉(fen)(fen)末(mo)層熔化與基體表(biao)(biao)面(mian)(mian)(mian)形(xing)成的冶金(jin)結(jie)(jie)合(he)，結(jie)(jie)合(he)強(qiang)度一(yi)(yi)般(ban)高達343 MPa~441 MPa。3)用于(yu)(yu)不(bu)(bu)(bu)(bu)同(tong)(tong)噴射熔煉的粉(fen)(fen)末(mo)須是(shi)(shi)(shi)自熔合(he)金(jin)粉(fen)(fen)末(mo)，用于(yu)(yu)噴涂(tu)的粉(fen)(fen)末(mo)不(bu)(bu)(bu)(bu)受限(xian)制(zhi)。4)不(bu)(bu)(bu)(bu)同(tong)(tong)結(jie)(jie)構的噴涂(tu)層均勻致密(mi)，一(yi)(yi)般(ban)認為(wei)(wei)無(wu)氣孔(kong)，噴涂(tu)層有一(yi)(yi)些的孔(kong)洞(dong)。5)不(bu)(bu)(bu)(bu)同(tong)(tong)噴涂(tu)層不(bu)(bu)(bu)(bu)能承(cheng)受沖擊載荷(he)和(he)高接(jie)(jie)觸應(ying)力(li)，適用于(yu)(yu)各種(zhong)表(biao)(biao)面(mian)(mian)(mian)接(jie)(jie)觸配合(he)，噴涂(tu)層結(jie)(jie)合(he)強(qiang)大，能承(cheng)受沖擊載荷(he)，可(ke)用于(yu)(yu)線接(jie)(jie)觸等場合(he)，可(ke)承(cheng)受較高的接(jie)(jie)觸應(ying)力(li)。

技(ji)(ji)術(shu)是(shi)表(biao)面(mian)工(gong)(gong)程中的一個(ge)重要分支，它是(shi)通過(guo)火焰、電(dian)弧(hu)或等(deng)離子體等(deng)熱(re)源，將某(mou)種線狀和粉末狀的材料加熱(re)至(zhi)熔融(rong)或半融(rong)化狀態，并(bing)將加速(su)形(xing)成(cheng)的熔滴高速(su)噴向基體形(xing)成(cheng)涂(tu)(tu)層。涂(tu)(tu)層具有(you)耐磨損、而腐蝕、而高溫和隔熱(re)等(deng)優異性能(neng)，并(bing)能(neng)對磨損、腐蝕或加工(gong)(gong)超差引起的零件(jian)尺寸減小進行修復。技(ji)(ji)術(shu)的應(ying)用主要包括：長效防(fang)腐、機械修復及先進制(zhi)造技(ji)(ji)術(shu)、模具制(zhi)作與修復、制(zhi)造特殊的功(gong)能(neng)涂(tu)(tu)層等(deng)四個(ge)方(fang)面(mian)。目前熱(re)噴涂(tu)(tu)技(ji)(ji)術(shu)已應(ying)用于幾乎工(gong)(gong)業領域以及家庭用品（如不粘鍋、紅外線保健電(dian)熱(re)器等(deng)）

三門峽優質熱噴涂用優質熱噴涂增強(qiang)涂(tu)(tu)層(ceng)(ceng)(ceng)與工(gong)(gong)(gong)件結合強(qiang)度熱(re)噴(pen)(pen)(pen)涂(tu)(tu)工(gong)(gong)(gong)藝是(shi)噴(pen)(pen)(pen)涂(tu)(tu)手法(fa)(fa)當(dang)中的(de)(de)一種(zhong)(zhong)，金(jin)屬(shu)噴(pen)(pen)(pen)涂(tu)(tu)采用這種(zhong)(zhong)手法(fa)(fa)能夠根據(ju)受熱(re)情況(kuang)的(de)(de)不同得(de)到相應可以呈現出來(lai)的(de)(de)效果(guo)。熱(re)噴(pen)(pen)(pen)涂(tu)(tu)加工(gong)(gong)(gong)是(shi)將熔融狀態(tai)的(de)(de)噴(pen)(pen)(pen)涂(tu)(tu)材料，通過高速氣流使其霧化噴(pen)(pen)(pen)射(she)在零件表面上，形成噴(pen)(pen)(pen)涂(tu)(tu)層(ceng)(ceng)(ceng)的(de)(de)一種(zhong)(zhong)金(jin)屬(shu)表面加工(gong)(gong)(gong)方法(fa)(fa)。我(wo)們(men)把特殊的(de)(de)工(gong)(gong)(gong)作表面叫(jiao) “涂(tu)(tu)層(ceng)(ceng)(ceng)”，把制造涂(tu)(tu)層(ceng)(ceng)(ceng)的(de)(de)工(gong)(gong)(gong)作方法(fa)(fa)叫(jiao)“熱(re)噴(pen)(pen)(pen)涂(tu)(tu)”，它是(shi)采用各(ge)種(zhong)(zhong)熱(re)源進行(xing)噴(pen)(pen)(pen)涂(tu)(tu)和噴(pen)(pen)(pen)焊的(de)(de)總稱(cheng)。熱(re)噴(pen)(pen)(pen)涂(tu)(tu)加工(gong)(gong)(gong)的(de)(de)涂(tu)(tu)層(ceng)(ceng)(ceng)有兩種(zhong)(zhong)，分別為噴(pen)(pen)(pen)涂(tu)(tu)層(ceng)(ceng)(ceng)和噴(pen)(pen)(pen)熔層(ceng)(ceng)(ceng)。那么(me)，這兩種(zhong)(zhong)熱(re)噴(pen)(pen)(pen)涂(tu)(tu)技(ji)術之(zhi)間(jian)有什么(me)區別呢? 1、工(gong)(gong)(gong)件受熱(re)情況(kuang)的(de)(de)不同

防(fang)(fang)護(hu)(hu)期長：噴(pen)鋅(xin)(xin)(xin)、噴(pen)鋁(lv)復合涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)、防(fang)(fang)護(hu)(hu)有效(xiao)期一般可達２０－３０年(nian)，在(zai)大氣(qi)中(zhong)最長有效(xiao)期國外達６０年(nian)之久的(de)(de)記錄，而有機涂(tu)(tu)(tu)(tu)裝的(de)(de)防(fang)(fang)護(hu)(hu)期一般為３－８年(nian)。（２）結合強度(du)比(bi)有機涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)高，達到２－３kgf/mm2。（３）耐(nai)高溫(wen)(wen)：噴(pen)鋁(lv)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)經擴散處理，可在(zai)９００℃高溫(wen)(wen)下(xia)抗(kang)氧(yang)化；鋅(xin)(xin)(xin)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)亦可承受４５０℃（４）不存在(zai)老化變(bian)質問題(ti)（５）耐(nai)磨、耐(nai)沖刷、抗(kang)擦傷性(xing)能(neng)好。噴(pen)鋅(xin)(xin)(xin)、噴(pen)鋁(lv)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)的(de)(de)比(bi)較(jiao)噴(pen)鋅(xin)(xin)(xin)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)是國外應用(yong)最早的(de)(de)一種(zhong)(zhong)陰極保護(hu)(hu)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)，６０年(nian)代以(yi)前長效(xiao)防(fang)(fang)護(hu)(hu)大部分采用(yong)噴(pen)鋅(xin)(xin)(xin)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)。但是由(you)于(yu)(yu)鋅(xin)(xin)(xin)層(ceng)(ceng)(ceng)(ceng)(ceng)是一種(zhong)(zhong)犧牲陽極材(cai)料，因此噴(pen)鋅(xin)(xin)(xin)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)的(de)(de)防(fang)(fang)腐(fu)速(su)率比(bi)噴(pen)鋁(lv)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)高，其耐(nai)蝕(shi)(shi)期與(yu)厚度(du)成(cheng)正比(bi)，要(yao)達到長效(xiao)防(fang)(fang)蝕(shi)(shi)、噴(pen)鋅(xin)(xin)(xin)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)應有一定(ding)(ding)厚度(du)；（２）鋅(xin)(xin)(xin)的(de)(de)密度(du)（7.09/cm3）。比(bi)鋁(lv)（2.7cm3）高2.6倍(bei)，因此噴(pen)涂(tu)(tu)(tu)(tu)相同(tong)厚度(du)的(de)(de)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)，鋅(xin)(xin)(xin)的(de)(de)消耗量是鋁(lv)的(de)(de)2.6倍(bei)。國外資料報道(dao)，噴(pen)涂(tu)(tu)(tu)(tu)等效(xiao)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)厚度(du)的(de)(de)情況下(xia)，鋅(xin)(xin)(xin)比(bi)鋁(lv)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)成(cheng)本貴一倍(bei)；（３）噴(pen)鋅(xin)(xin)(xin)所形成(cheng)的(de)(de)ZnO粉(fen)塵對(dui)人體呼吸道(dao)有危害；（４）噴(pen)鋅(xin)(xin)(xin)時由(you)于(yu)(yu)空氣(qi)中(zhong)CO含(han)量不足，不能(neng)形成(cheng)穩(wen)(wen)定(ding)(ding)的(de)(de)ZnCO3保護(hu)(hu)膜，而易疏松的(de)(de)Zn(OH)2，在(zai)鋅(xin)(xin)(xin)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)上產生(sheng)許多(duo)“白銹(xiu)”，腐(fu)蝕(shi)(shi)率升高；（５）由(you)于(yu)(yu)工業區大氣(qi)、城市大氣(qi)中(zhong)SO2含(han)量較(jiao)高，使雨水酸度(du)增加，也能(neng)破壞(huai)ZnCO3膜的(de)(de)穩(wen)(wen)定(ding)(ding)性(xing)，使鋅(xin)(xin)(xin)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)腐(fu)蝕(shi)(shi)速(su)率加快。