1. 減(jian)壓器


  減(jian)(jian)壓(ya)(ya)器又(you)稱(cheng)壓(ya)(ya)力調節器，其作用(yong)(yong)是把儲存在氣瓶內的高壓(ya)(ya)氣體減(jian)(jian)壓(ya)(ya)至焊(han)接或切(qie)割所(suo)需的壓(ya)(ya)力，并保持壓(ya)(ya)力穩定(ding)。國產幾種常(chang)用(yong)(yong)氣體減(jian)(jian)壓(ya)(ya)器型號及技術參數見表2-37。


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2. 流量計、氣體配比器


  流(liu)(liu)量(liang)的(de)大小(xiao)將(jiang)對焊接接頭(tou)質量(liang)有很(hen)大影(ying)響(xiang)，轉(zhuan)子流(liu)(liu)量(liang)計是(shi)氣(qi)體(ti)(ti)保(bao)護焊中(zhong)調(diao)節(jie)保(bao)護氣(qi)本流(liu)(liu)量(liang)的(de)一種儀(yi)器。對于混合氣(qi)體(ti)(ti)保(bao)護焊還需(xu)氣(qi)體(ti)(ti)配比器，來控制不同氣(qi)體(ti)(ti)流(liu)(liu)量(liang)的(de)裝置。


  有(you)關轉子流(liu)量(liang)計(ji)和(he)(he)氣體(ti)配(pei)比器的型(xing)號及技術數據見表2-38和(he)(he)表2-39。


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3. 手(shou)工(gong)鎢極(ji)氬弧(hu)焊(han)(han)焊(han)(han)槍


  手(shou)工(gong)(gong)(gong)(gong)(gong)鎢極氬弧(hu)(hu)焊(han)(han)(han)(han)焊(han)(han)(han)(han)槍(qiang)是(shi)手(shou)工(gong)(gong)(gong)(gong)(gong)氣(qi)體保(bao)護焊(han)(han)(han)(han)在(zai)使(shi)用過(guo)程中(zhong)(zhong)不(bu)可(ke)缺少的(de)一(yi)種(zhong)(zhong)工(gong)(gong)(gong)(gong)(gong)具(ju)(ju)。它除(chu)了具(ju)(ju)有(you)焊(han)(han)(han)(han)條電弧(hu)(hu)焊(han)(han)(han)(han)用焊(han)(han)(han)(han)鉗的(de)性能(neng)外，還要(yao)(yao)求焊(han)(han)(han)(han)槍(qiang)輕便、靈活(huo)，便于焊(han)(han)(han)(han)工(gong)(gong)(gong)(gong)(gong)在(zai)不(bu)同位置(zhi)長時間不(bu)間斷地(di)工(gong)(gong)(gong)(gong)(gong)作，以及具(ju)(ju)有(you)良好的(de)絕緣性，保(bao)證使(shi)用者安全(quan)。手(shou)工(gong)(gong)(gong)(gong)(gong)鎢極氬弧(hu)(hu)焊(han)(han)(han)(han)焊(han)(han)(han)(han)槍(qiang)通常(chang)有(you)兩種(zhong)(zhong)：一(yi)種(zhong)(zhong)是(shi)氣(qi)冷式，另一(yi)種(zhong)(zhong)是(shi)水冷式。對(dui)于水冷式焊(han)(han)(han)(han)槍(qiang)要(yao)(yao)保(bao)證水流暢通，不(bu)能(neng)有(you)堵(du)塞和滲漏(lou)現象(xiang)，不(bu)然(ran)(ran)在(zai)施焊(han)(han)(han)(han)過(guo)程中(zhong)(zhong)突然(ran)(ran)中(zhong)(zhong)斷除(chu)會(hui)影響(xiang)正常(chang)施工(gong)(gong)(gong)(gong)(gong)外，還會(hui)對(dui)焊(han)(han)(han)(han)接(jie)質量造(zao)成極大的(de)影響(xiang)。氣(qi)冷式焊(han)(han)(han)(han)槍(qiang)的(de)氣(qi)管同樣要(yao)(yao)保(bao)持氣(qi)流暢通，特別(bie)是(shi)新焊(han)(han)(han)(han)槍(qiang)使(shi)用前，要(yao)(yao)將氣(qi)管中(zhong)(zhong)殘留多余物吹除(chu)干凈，這樣才能(neng)保(bao)證輸送氣(qi)體的(de)純(chun)度，不(bu)然(ran)(ran)將會(hui)直接(jie)影響(xiang)焊(han)(han)(han)(han)接(jie)接(jie)頭質量。


  常用的(de)氣(qi)冷式和水(shui)冷式焊槍型(xing)號和技術數據見表2-40。


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  表(biao)2-40常用的氣冷式和水冷式焊槍型號和技術(shu)數據(ju)