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id="lj3hyah" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265668525390/8688498.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8tfbc8g" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265668525390/8688498.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="0hbbiuq" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>福建GZ60S焊絲價格</p><p><span>***更新：</span>2020-06-24 07:20:06</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="hzaw33p" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">簡敏精密五金制造(上海)有限公司</a></p><p><span>聯(lián)系人：</span>龔先生</p><p><span>郵箱: </span></p><p><span>電話: </span>13818473006</p><p><span>傳真: </span>021_69726282</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>021-69726282</p><p><span>地址: </span>顧北東路365號C區(qū)1101</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="aijeqrc" class="page-proshow02"><p class="title">詳細說明</p><div id="7o7ok3e" class="box"><p><p> 也可用于焊后不能進行熱處理的鉻不銹鋼及復合鋼、異種鋼等A022Mo不銹鋼焊條符合GBE317L-16相當AWSE317L-16說明:A022Mo是鈦鈣型藥皮的**碳Cr18Ni12Mo3不銹鋼焊條，其熔敷金屬含碳量≤，具有良好的耐熱，福建GZ60S焊絲價格，福建GZ60S焊絲價格、耐腐蝕及抗裂、抗氣孔性能，尤其耐腐蝕性能優(yōu)于A022，有良好的操作工藝性能，藥皮耐紅，強度好，福建GZ60S焊絲價格。可交直流兩用。用途:用于**碳00Cr18Ni12Mo3不銹鋼，也可用于焊后不能進行熱處理的鉻不銹鋼及復合鋼和異種鋼的焊接。A032不銹鋼焊條符合GBE317MoCuL-16說明:A032是鈦鈣型藥皮的**碳Cr19Ni13Mo2Cu不銹鋼焊條，具有良好的耐熱、耐腐蝕及抗裂、抗氣孔性能，有優(yōu)良的焊接工藝性能?？山恢绷鲀捎谩Ｓ猛?由于焊縫中含有Mo和Cu，在硫.酸介質(zhì)中具有較高的抗腐蝕性能，用于焊接合成纖維等設(shè)備在稀、中濃度硫.酸介質(zhì)中工作的同類型低碳不銹鋼結(jié)構(gòu)，也可焊接Cr10Si3耐酸鋼。A042不銹鋼焊條符合GBE309MoL-16相當AWSE309MoL-16到說明:A042是鈦鈣型藥皮的**碳Cr23Ni13Mo2不銹鋼焊條，可交直流兩用。由于焊縫中加入適量的Mo，故提高了焊縫金屬的抗裂性及耐腐蝕性能。用途:用于相同類型的**碳不銹鋼材料（如尿素合成塔襯里）及異種鋼焊接等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建GZ60S焊絲價格" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265668525390/8688498.png"></div><p> 焊機穩(wěn)態(tài)輸出電流和輸出電壓的關(guān)系稱為焊機的外特性。焊機的外特性如圖3—12所示。焊機外特性有三種形式：即下降特性(陡降、緩降)、平特性和上升特性。由于熔滴過渡和熱慣性以及操作等原因，焊接時電弧長度總是在不斷的變化，因而電弧電壓和焊接電流也在不斷地變化。為保證焊接質(zhì)量穩(wěn)定，總希望焊接過程中焊接電流變動越小越好。從圖3—13可以看出，具有陡降外特性的焊機和緩降外特性的焊機，當焊接電流發(fā)生相應的變化值△I時，陡降外特性曲線引起的電壓變化值△U2大于緩降外特性曲線引起的電壓變化值△U1。換句話說，對于相同的弧長變化，陡降外特性焊機所引起的電流變化要比緩降外特性焊機所引起的焊接電流變化小得多。焊條電弧焊過程中，弧長變化是經(jīng)常發(fā)生的，為了保證焊接電流穩(wěn)定，顯然要求焊機具有陡降的外特性。圖3—12焊機外特性曲線1—陡降外特性曲線2—緩降外特性曲線3—上升特性曲線4—乎特性曲線圖3—13兩種不同下降程度的外特性曲線1—緩降外特性曲線2—陡降外特性曲線五、焊條電弧焊輔助設(shè)備和工具焊條電弧焊輔助設(shè)備和工具包括電焊鉗、焊接電纜、面罩及其它防護用具。(一)電焊鉗電焊鉗是夾持焊條并傳導焊接電流的操作器具。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建GZ60S焊絲價格" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265666699219/955806.png"></div><p> 電焊條由內(nèi)部鋼芯和外側(cè)藥皮兩部分構(gòu)成。1.鋼芯主要作用導電，并在焊條端部形成具有一定成分的熔敷金屬。要求焊芯盡量減少有害元素的含量，限制S、P，有些焊條要求焊芯控制As（砷）、Sb（銻）、Sn（錫）等元素。2.藥皮又稱為涂料，保證熔敷金屬具有一定的成分和性能。采用氧化物、碳酸鹽、硅酸鹽、有機物、氟化物、鐵合金及化工產(chǎn)品等上百種原料粉末，按照一定的配方比例混合而成。藥皮中各種組分作用1）穩(wěn)弧劑：凡易電離的物質(zhì)均能穩(wěn)弧。用堿金屬及堿土金屬化合物，碳酸鉀、碳酸鈉、大理石等。2）造渣劑：形成溶渣，覆蓋熔化金屬表面，保護熔池及改善焊縫成形。3）脫氧劑：降低含氧量，提高機械性能。主要脫氧劑有錳鐵、硅鐵、鈦鐵。4）造氣劑：高溫下分解出氣體，保護電弧及熔池，防止空氣中氧和氮侵入。5）合金劑：補償合金元素的燒損及向焊縫過渡合金元素，以保證焊縫的化學成分及性能等。6）增塑潤滑劑：增加藥皮粉料在焊條壓涂過程的塑性、滑性及流動性，以提高焊條的壓涂質(zhì)量，減小偏心度。7）粘接劑：使藥皮粉料在壓涂過程中有一定粘性，與焊芯牢，并使之在烘干后具有一定的強度。焊條用途按熔渣的堿度分類酸性焊條和堿性焊條。酸性焊條焊接工藝性好，成形整潔。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/371585.html</p></div></div></div></div></div><div id="gokqr8r" class="page-right twoColRt"><div id="8fija8g" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="websekg" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" 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