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class="searchbox"><div id="dn8g8tv" class="searchLt"><div id="txzw4c3" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會</a></div><div id="bk877gn" class="clearfix searchWrap"><div id="bzl24q7" class="searchInput"><input type="text" name="keywords" placeholder="請輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="edkhra7" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = "index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="aub2dpr" class="twoCol"><div id="mld7rda" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_wjgj/">五金、工具</a>?<a href="http://www.cdcfah.com/cp/second-wjgj_hjclyfjqh/">焊接材料與附件</a>?<a href="http://www.cdcfah.com/cp/third-hjclyfjqh_hansi/">焊絲</a>?南京SM2R焊絲工廠歡迎來電簡敏精密五金制造供應(yīng)</p><div id="8xzgipb" class="leftbox clearfix"><h1>南京SM2R焊絲工廠歡迎來電簡敏精密五金制造供應(yīng)</h1><div id="8tvcj7i" class="proBig"><div id="odacj83" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265666699219/955806.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dcu87z7" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265666699219/955806.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="b8hskne" 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>南京SM2R焊絲工廠,焊絲</p><p><span>***更新：</span>2020-10-09 18:06:56</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="3f27v8n" 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(dāng)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="tfr8ixj" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ap2hlhj" class="box"><p><p> 不銹鋼焊條可分為鉻不銹鋼焊條和鉻鎳不銹鋼焊條。鉻不銹鋼具有一定的耐蝕（氧化性酸、有機酸、氣蝕）耐熱和耐蝕性能。通常被選作電站、化工、石油等設(shè)備材料。但鉻不銹鋼一般情況下可焊性較差，應(yīng)注意焊接工藝、熱處理條件及選用合適的電焊條。鉻鎳不銹鋼焊條具有良好耐腐蝕性和抗氧化性，廣泛應(yīng)用于化工、化肥、石油、醫(yī)療機械制造。為防止由于加熱而產(chǎn)生晶間腐蝕，焊接電流不宜太大，比碳鋼焊條較少20%左右，電弧不宜過長，層間快冷，以窄焊道為宜。不銹鋼焊接要點與注意事項一、采用垂直外特性的電源，直流時采用正極性(焊絲接負(fù)極)1、一般適合于6mm以下薄板的焊接，具有焊縫成型美觀，焊接變形量小的特點。2、保護氣體為氬氣，純度為。當(dāng)焊接電流為50~150A時，氬氣流量為8~10L/min，當(dāng)電流為150~250A時，氬氣流量為12~15L/min。3，南京SM2R焊絲工廠、鎢極從氣體噴嘴突出的長度，以4~5mm為佳，在角焊等遮蔽性差的地方是2~3mm，在開槽深的地方是5~6mm，噴嘴至工作的距離一般不超過15mm。4、為防止焊接氣孔之出現(xiàn)，焊接部位如有鐵銹，南京SM2R焊絲工廠、油污等務(wù)必清理干凈，南京SM2R焊絲工廠。5、焊接電弧長度，焊接普通鋼時，以2~4mm為佳，而焊接不銹鋼時，以1~3mm為佳，過長則保護效果不好。6、對接打底時。焊絲焊補時熱影響區(qū)非常小，不會產(chǎn)生內(nèi)應(yīng)力。南京SM2R焊絲工廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京SM2R焊絲工廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265666699219/955806.png"></div><p> 兩種氣體同時存在比單一氣體的危害作用高15--20倍。防護措施（1）通風(fēng)措施氬弧焊工作現(xiàn)場要有良好的通風(fēng)裝置，以排出有害氣體及煙塵。除廠房通風(fēng)外，可在焊接工作量大，焊機集中的地方，安裝幾臺軸流風(fēng)機向外排風(fēng)。此外，還可采用局部通風(fēng)的措施將電弧周圍的有害氣體抽走，例如采用明弧排煙罩、排煙焊、輕便小風(fēng)機等。（2）防護射線措施盡可能采用放射劑量極低的鈰鎢極。釷鎢極和鈰鎢極加工時，應(yīng)采用密封式或抽風(fēng)式砂輪磨削，操作者應(yīng)配戴口罩、手套等個人防護用品，加工后要洗凈手臉。釷鎢極和鈰鎢極應(yīng)放在鋁盒內(nèi)保存。（3）防護高頻的措施為了防備和削弱高頻電磁場的影響，采取的措施有：1）工件良好接地，焊電纜和地線要用金屬編織線屏蔽；2）適當(dāng)降低頻率；3）盡量不要使用高頻振蕩器做為穩(wěn)弧裝置，減小高頻電作用時間。（4）其它個人防護措施氬弧焊時，由于臭氧和紫外線作用強烈，宜穿戴非棉布工作服（如耐酸呢、柞絲綢等）。在容器內(nèi)焊接又不能采用局部通風(fēng)的情況下，可以采用送風(fēng)式頭盔、送風(fēng)口罩或防毒口罩等個人防護措施。～～～～～～～～～～～～氬弧焊必須注意的幾個細(xì)節(jié)。。。1930年美國發(fā)明惰性氣體保護焊。南京SM2R焊絲工廠含有造渣、造氣和穩(wěn)弧成分的藥芯焊絲焊接時不需要保護氣體，稱自保護藥芯焊絲。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京SM2R焊絲工廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265669208984/3318362.png"></div><p> 黃銅焊接黃銅焊接是修鋪、加工銅材時候必不可少的加工技術(shù)。焊接，也叫作熔接、镕接，是一種常見的以加熱方式接合金屬或其他熱塑性材料如塑料的制造工藝及技術(shù)。下面將介紹黃銅的焊接性和黃銅焊接方法。黃銅焊接性黃銅是銅鋅合金，由于鋅的沸點較低，*為907℃，故焊接過程中極容易蒸發(fā)，這一點成為黃銅焊接的比較大問題。在焊接高溫作用下，焊條電弧焊時鋅的蒸發(fā)量高達(dá)40%，鋅的大量蒸發(fā)，導(dǎo)致焊接接頭的力學(xué)性能和耐蝕性能下降，還使之對應(yīng)力腐蝕的敏感性增大。蒸發(fā)的鋅在空氣中立即被氧化成氧化鋅，形成白色的煙霧，給操作帶來很大困難，而且影響焊工身體健康，因此，焊接黃銅的場所，應(yīng)加強通風(fēng)等防護措施。黃銅的焊接性不良，焊接時會產(chǎn)生氣孔、裂紋、鋅的蒸發(fā)和氧化等問題。為了解決這些問題，在焊接時常用含硅的焊絲，因為硅在熔池表面會形成一層致密的氧化硅薄膜，阻礙鋅的蒸發(fā)和氧化，并防止氫的入侵。焊后可經(jīng)470～560℃的退火處理，以消除應(yīng)力防止“自裂”現(xiàn)象。黃銅焊接的方法：氣焊、碳弧焊、焊條電弧焊和氬弧焊。1．黃銅的氣焊（1）焊絲和焊粉：焊絲采用絲221、絲224。這些焊絲中的硅、錫、鐵元素既是脫氧劑，防止焊縫產(chǎn)生氣孔，又能防止和減少鋅的蒸發(fā)和燒損。</p><p> 焊條電弧焊從焊接電弧的基礎(chǔ)講起，按“有認(rèn)知、易學(xué)會、好掌握、能操作”的原則，由淺入深、循序漸進地講解了焊條電弧焊的工藝?yán)碚摵蛯嵅偌寄?。本書主要?nèi)容包括：焊接技術(shù)基礎(chǔ)知識、焊條電弧焊設(shè)備、焊條的組成和分類、焊條的型號與牌號、常用焊條焊接工藝性能及選用原則、焊條的正確保管與貯存、焊條電弧焊基本工藝知識、焊接冶金基本知識、焊接接頭的組.織與性能、焊條電弧焊常見焊接缺點及其防止、典型管類和管板類焊接技術(shù)、碳弧氣刨。一、焊條電弧焊的操作焊條電弧焊**基本的操作是引弧、運條和收尾(一)引弧引弧即產(chǎn)生電弧。焊條電弧焊是采用低電壓、大電流放電產(chǎn)生電弧，依靠電焊條瞬時接觸工件實現(xiàn)。引弧時必須將焊條末端與焊件表面接觸形成短路，然后迅速將焊條向上提起2～4mm的距離，此時電弧即引燃。引弧的方法有兩種：碰擊法和擦劃法，詳見圖3—14引弧方法(1)碰擊法。也稱點接觸法或稱敲擊法。碰擊法是將焊條與工件保持一定距離，然后垂直落下，使之輕輕敲擊工件，發(fā)生短路，再迅速將焊條提起，產(chǎn)生電弧的引弧方法。此種方法適用于各種位置的焊接。(2)擦劃法。也稱線接觸法或稱摩擦法。擦劃法是將電焊條在坡口上滑動，成一條線，當(dāng)端部接觸時，發(fā)生短路。實芯焊絲的分類及特點實芯焊絲是目前**常用的焊絲,由熱軋線材經(jīng)拉拔加工而成。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京SM2R焊絲工廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265671318359/8288159.jpg"></div><p> 紅外線輻射約為普通焊條電弧焊的1～，氬弧焊電弧產(chǎn)生的紫外線輻射約為焊條電弧焊的5～20倍。在有限空間內(nèi)焊接時，臭氧的濃度可增大到危險程度，在焊接過程中，還會產(chǎn)生二氧化碳，一氧化碳等有害氣體和金屬粉塵，這些都對焊工產(chǎn)生一定的危害。所以我們在焊接過程中要做好防護，選用電極的材料，要盡量選用放射性小的鈰鎢。磨削電極時，要戴好口罩，手套，且工作后要洗手，讓危害降到比較低。高頻電磁場的危害焊接通常使用高頻振蕩器的頻率為200～500kHz，電壓2500～3500V，電場強度140～190V/m。引弧時，產(chǎn)生的高頻電磁場強度在60～110V/m之間，超過參考衛(wèi)生標(biāo)準(zhǔn)(20V/m)數(shù)倍。在非熔化極氬弧焊和等離子弧焊割時，常用高頻振蕩器來激發(fā)引弧，有的交流氬弧焊機還用高頻振蕩器來穩(wěn)定電弧。人體在高頻電磁場作用下，能吸收一定的輻射能量，產(chǎn)生生物學(xué)效應(yīng)，主要是熱作用。高頻電磁場強度受許多因素影響，如距離，振蕩器和振蕩回路越近場強越高，反之則越低。此外，與高頻部分的屏蔽程度等有關(guān)。人體在高頻電磁場作用下會產(chǎn)生生物學(xué)效應(yīng)，焊工長期接觸高頻電磁場能引起植物神經(jīng)功能紊亂和神經(jīng)衰弱。表現(xiàn)為全身不適、頭昏***、疲乏、食欲不振、***及血壓偏低等癥狀。焊絲是作為填充金屬或同時作為導(dǎo)電用的金屬絲焊接材料。福建焊絲批發(fā)</p><p style="text-indent:25px">焊接時，送絲較實心焊絲困難。南京SM2R焊絲工廠</p><p> A172不銹鋼焊條符合GBE307-16相當(dāng)AWSE307-16說明:A172是鈦型藥皮的不銹鋼焊條，交直流兩用。焊縫金屬具有優(yōu)良的抗裂性。用途:適于ASTM307鋼及其它異種鋼焊接，也可用于耐沖擊腐蝕鋼和過渡層堆焊。如高錳鋼、淬硬鋼等。A201不銹鋼焊條符合GBE316-16相當(dāng)AWSE316-16說明:A201是鈦型藥皮的低碳Cr18Ni12Mo2不銹鋼焊條。施焊時藥皮具有不發(fā)紅、不開裂的特點，由于熔敷金屬添加Mo。故具有良好的耐蝕、耐熱及抗裂性能，特別對抗氯離子點蝕有好處?？山恢绷鲀捎?。用途:用于焊接在有機和無機酸（非氧化性酸）介質(zhì)中工作的0Cr18Ni12Mo2不銹鋼設(shè)備。也可用于焊后不能進行熱處理的高鉻鋼或作為異種鋼焊接。A202不銹鋼焊條符合GBE316-16相當(dāng)AWSE316-16說明:A202是鈦鈣型藥皮的低碳Cr18Ni12Mo2不銹鋼焊條。由于焊縫金屬添加Mo，故具有良好的耐蝕、耐熱及抗裂性能，特別對抗氯離子點蝕有好處?？山恢绷鲀捎?，有優(yōu)良的操作工藝性能。用途:用于焊接在有機和無機酸（非氧化性酸）介質(zhì)中工作的0Cr18Ni12Mo2不銹鋼或作為異種鋼焊接。A207不銹鋼焊條符合GBE316-15相當(dāng)AWSE316-15說明:A207是堿***皮的低碳Cr18Ni12Mo2不銹鋼焊條。由于熔敷金屬含有Mo，故具有良好的耐蝕、耐熱及抗裂性能。南京SM2R焊絲工廠</p><p style="text-indent:25px">簡敏精密五金制造(上海)有限公司致力于五金、工具，是一家生產(chǎn)型公司。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細(xì)節(jié)，公司旗下模具焊條，模具焊絲，特種焊絲，特種焊條深受客戶的喜愛。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造五金、工具良好品牌。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗，為客戶成功提供堅實有力的支持。</p></p><br /><p>文章來源地址: 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