1. 減壓器
減壓(ya)器又稱壓(ya)力調(diao)節(jie)器，其作用(yong)是把儲存在氣瓶內(nei)的(de)高(gao)壓(ya)氣體減壓(ya)至焊(han)接或切割所需的(de)壓(ya)力，并保持壓(ya)力穩定。國產(chan)幾(ji)種(zhong)常用(yong)氣體減壓(ya)器型號及技術參數見(jian)表2-37。
2. 流量計(ji)、氣體配比器(qi)
流(liu)量(liang)的(de)大小將對焊(han)接(jie)接(jie)頭質量(liang)有很大影(ying)響，轉(zhuan)子流(liu)量(liang)計是氣體(ti)保護(hu)焊(han)中調節保護(hu)氣本流(liu)量(liang)的(de)一種儀器。對于(yu)混合氣體(ti)保護(hu)焊(han)還需氣體(ti)配比器，來控制不同氣體(ti)流(liu)量(liang)的(de)裝(zhuang)置(zhi)。
有關(guan)轉子流量計(ji)和(he)氣體配比器的(de)型(xing)號及技術數據(ju)見表(biao)(biao)2-38和(he)表(biao)(biao)2-39。
3. 手(shou)工鎢(wu)極(ji)氬弧(hu)焊焊槍
手工(gong)(gong)(gong)鎢(wu)極(ji)氬(ya)弧焊(han)(han)(han)焊(han)(han)(han)槍(qiang)(qiang)是(shi)手工(gong)(gong)(gong)氣(qi)(qi)體保(bao)護焊(han)(han)(han)在使(shi)用(yong)過程(cheng)中不(bu)可缺少(shao)的(de)一(yi)種(zhong)工(gong)(gong)(gong)具(ju)。它(ta)除(chu)了(le)具(ju)有焊(han)(han)(han)條電弧焊(han)(han)(han)用(yong)焊(han)(han)(han)鉗的(de)性(xing)能(neng)外，還(huan)要(yao)(yao)求(qiu)焊(han)(han)(han)槍(qiang)(qiang)輕便(bian)、靈活，便(bian)于焊(han)(han)(han)工(gong)(gong)(gong)在不(bu)同(tong)位置(zhi)長時間不(bu)間斷地工(gong)(gong)(gong)作，以及(ji)具(ju)有良好的(de)絕緣性(xing)，保(bao)證使(shi)用(yong)者安全。手工(gong)(gong)(gong)鎢(wu)極(ji)氬(ya)弧焊(han)(han)(han)焊(han)(han)(han)槍(qiang)(qiang)通(tong)(tong)常(chang)有兩種(zhong)：一(yi)種(zhong)是(shi)氣(qi)(qi)冷(leng)(leng)式(shi)，另一(yi)種(zhong)是(shi)水冷(leng)(leng)式(shi)。對(dui)于水冷(leng)(leng)式(shi)焊(han)(han)(han)槍(qiang)(qiang)要(yao)(yao)保(bao)證水流暢(chang)通(tong)(tong)，不(bu)能(neng)有堵塞和滲漏現象，不(bu)然(ran)在施焊(han)(han)(han)過程(cheng)中突然(ran)中斷除(chu)會影(ying)響正(zheng)常(chang)施工(gong)(gong)(gong)外，還(huan)會對(dui)焊(han)(han)(han)接質量造成極(ji)大的(de)影(ying)響。氣(qi)(qi)冷(leng)(leng)式(shi)焊(han)(han)(han)槍(qiang)(qiang)的(de)氣(qi)(qi)管同(tong)樣要(yao)(yao)保(bao)持氣(qi)(qi)流暢(chang)通(tong)(tong)，特別是(shi)新焊(han)(han)(han)槍(qiang)(qiang)使(shi)用(yong)前，要(yao)(yao)將氣(qi)(qi)管中殘留(liu)多余物吹除(chu)干凈(jing)，這樣才能(neng)保(bao)證輸送(song)氣(qi)(qi)體的(de)純度(du)，不(bu)然(ran)將會直(zhi)接影(ying)響焊(han)(han)(han)接接頭(tou)質量。
常(chang)用的(de)氣冷(leng)式和(he)水冷(leng)式焊(han)槍(qiang)型(xing)號(hao)和(he)技術數據(ju)見表(biao)2-40。
表2-40常用的氣冷(leng)式(shi)和(he)水(shui)冷(leng)式(shi)焊槍型號和(he)技術數據(ju)
