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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="e7fjgnh" class="twoCol"><div id="iugd32s" 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NH45R焊絲廠家歡迎來電簡敏精密五金制造供應(yīng)</p><div id="aewdary" class="leftbox clearfix"><h1>南京NH45R焊絲廠家歡迎來電簡敏精密五金制造供應(yīng)</h1><div id="etfc2r2" class="proBig"><div id="sln28ba" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265669208984/3318362.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="x7pgdkm" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265669208984/3318362.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="povi7fh" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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NH45R焊絲廠家,焊絲</p><p><span>***更新：</span>2020-09-07 09:16:17</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="aur3evm" 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(jī): </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="wqn3yvm" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="jdv23wt" class="box"><p><p> 黃銅焊接黃銅焊接是修鋪，南京NH45R焊絲廠家、加工銅材時(shí)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(diǎn)較低，*為907℃，故焊接過程中極容易蒸發(fā)，這一點(diǎn)成為黃銅焊接的比較大問題。在焊接高溫作用下，南京NH45R焊絲廠家，焊條電弧焊時(shí)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(qiáng)通風(fēng)等防護(hù)措施。黃銅的焊接性不良，南京NH45R焊絲廠家，焊接時(shí)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(shí)常用含硅的焊絲，因?yàn)楣柙谌鄢乇砻鏁纬梢粚又旅艿难趸璞∧?，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。在相同焊接電流下藥芯焊絲的電流密度大，熔化速度快，其熔敷率約為85%-90%，生產(chǎn)率比焊條電弧焊高約3-5倍。南京NH45R焊絲廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京NH45R焊絲廠家,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265669208984/3318362.png"></div><p> 1954年哈爾濱鍋爐廠從德國引進(jìn)氬弧焊是在普通電弧焊的原理的基礎(chǔ)上,利用氬氣對金屬焊材的保護(hù),通過高電流使焊材在被焊基材上熔化成液態(tài)形成熔池,使被焊金屬和焊材達(dá)到冶金結(jié)合的一種焊接技術(shù),由于在高溫熔融焊接中不斷送上氬氣,使焊材不能和空氣中的氧氣接觸,從而防止了焊材的氧化。手工鎢極氬弧焊時(shí)選擇電源的種類和極性的方法手工鎢極氬弧焊的電源有直流電源和交流電源,直流電源有直流正接法和直流反接法。直流正接法:焊件接正極,鎢極接負(fù)極,這樣焊接時(shí),電子高速沖向焊件,焊接溫度高,熔池深而窄。正離子沖向鎢極,鎢極熱量低損耗小。該方法適用于耐熱鋼、合金鋼、不銹鋼、銅、鈦等金屬的焊接。直流反接法:焊件接負(fù)極,鎢極接正極,焊接時(shí)電子高速沖向鎢極,鎢極熱量高,消耗快,故一般不使用。用于焊接高熔點(diǎn)氧化膜的鋁、鎂及其合金。交流電源由于極**替變化,它既有“陰極霧化”作用,又有鎢極消耗比直流反接法少的特點(diǎn),適用于鋁、鎂及其合金的焊接。手工鎢極氬弧焊時(shí)噴嘴的選擇方法噴嘴大小和形狀直接影響氬氣保護(hù)區(qū)的保護(hù)范圍和效果,常用的噴嘴有6號,7號,8號,10號。噴嘴直徑的選擇不宜過大,否則會妨礙操作,浪費(fèi)氬氣;但也不宜過小,否則熔池保護(hù)不好,容易產(chǎn)生缺點(diǎn)。山東NH45R焊絲價(jià)格氟石、石灰石等需添加在自保護(hù)藥芯焊絲中使燃燒產(chǎn)生保護(hù)氣體。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京NH45R焊絲廠家,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265669218750/3372736.png"></div><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(shí)藥皮具有不發(fā)紅、不開裂的特點(diǎn)，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(diǎn)蝕有好處。可交直流兩用。用途:用于焊接在有機(jī)和無機(jī)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(jìn)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(diǎn)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(jī)和無機(jī)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。</p><p> A237不銹鋼焊條符合GBE318V-15說明:A237是堿***皮的低碳Cr18Ni12Mo2V不銹鋼焊條，由于熔敷金屬含有V，故具有良好的耐熱性能和抗裂性能。采用直流反接，可進(jìn)行全位置焊接。用途:用于要求一般耐熱而又有一定耐蝕性的Cr19Ni10及0Cr18Ni12Mo2不銹鋼結(jié)構(gòu)的多層焊接。A242不銹鋼焊條符合GBE317-16相當(dāng)AWSE317-16說明:A242是鈦鈣型藥皮的低碳Cr19Ni13Mo3不銹鋼焊條，其熔敷金屬含Mo量比A202更高，對非氧化性酸（如硫.酸、亞硫.酸、磷酸）以及有機(jī)酸具有較好的耐腐蝕性能。對于抗點(diǎn)蝕也有良好的作用，可交直流兩用。用途:用于相同類型的不銹鋼材料及復(fù)合鋼、異種鋼的焊接。特色A302不銹鋼焊條特色符合GBE309-16相當(dāng)AWSE309-16說明:A302是鈦鈣型藥皮的Cr23Ni13不銹鋼焊條，熔敷金屬具有良好的抗裂性能及抗氧化性能?？山恢绷鲀捎?，有良好的操作工藝性能。為了提高熔敷金屬的抗裂性和耐蝕性，適當(dāng)提高了Mo含量，比GB/T983-1995E309-16中的Mo含量高1%左右，其它成分均符合國標(biāo)。用途:用于焊接相同類型的不銹鋼、不銹鋼襯里、異種鋼（Cr19Ni9同低碳鋼）以及高鉻鋼、高錳鋼等。A307不銹鋼焊條符合GBE309-15相當(dāng)AWSE309-15說明:A307是堿***皮的Cr23Ni13不銹鋼焊條。?線材表面亦需光滑平順且清潔否則將影響送絲的順暢及焊接電流的傳迅。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京NH45R焊絲廠家,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265668525390/8688498.png"></div><p> 也可用于硬化性大的鉻鋼（如Cr5Mo、Cr9Mo、Cr13、Cr28等）以及異種鋼的焊接。A407不銹鋼焊條符合GBE310-15相當(dāng)AWSE310-15說明:A407是堿***皮的Cr26Ni21純奧氏體不銹鋼焊條。熔敷金屬900~1100℃高溫條件下具有優(yōu)良的抗氧化性。采用直流反接，可進(jìn)行全位置焊接。由于焊縫為純奧氏體，抗熱裂性能不及雙相組.織的好。用途:用于同類型的耐熱不銹鋼，不銹鋼襯里以及異種鋼的焊接，也可用來焊接硬化性大的Cr5Mo、Cr9Mo、Cr13及Cr28鋼等的焊接。A412不銹鋼焊條符合GBE310Mo-16相當(dāng)AWSE310Mo-16說明:A412是鈦鈣型藥皮的Cr26Ni21Mo2純奧氏體不銹鋼焊條。由于熔敷金屬中添加了Mo，故耐蝕性、耐熱性、抗裂性能均比A402、A407有所改善。交直流兩用，操作工藝性能良好。用途:用于焊接在高溫下工作的耐熱不銹鋼，也可用來焊接不銹鋼襯里、異種鋼等。在焊接淬硬性高的碳鋼、低合金鋼時(shí)韌性極好。A422不銹鋼焊條說明:A422是鈦鈣型藥皮的Cr25Ni18Mn8不銹鋼焊條,交直流兩用。由于焊縫中加入了較多的Mn，因而提高了焊縫的抗熱裂性能。用途:用于補(bǔ)焊爐卷軌機(jī)上的Cr25Ni20Si2奧氏體耐熱鋼卷筒，也可用于焊接異種鋼等。鉬、鉻、碳、錳、鎳及釩等合金元素的添加，可以提高（改善）熔填金屬的強(qiáng)度、延性、硬度及韌性等。山東NH45R焊絲價(jià)格</p><p style="text-indent:25px">用合金含量高于母材的焊絲作填充金屬，通?？煞乐购缚p金屬裂紋。南京NH45R焊絲廠家</p><p> 也可用于焊后不能進(jìn)行熱處理的鉻不銹鋼及復(fù)合鋼、異種鋼等A022Mo不銹鋼焊條符合GBE317L-16相當(dāng)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、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(qiáng)度好?？山恢绷鲀捎?。用途:用于**碳00Cr18Ni12Mo3不銹鋼，也可用于焊后不能進(jìn)行熱處理的鉻不銹鋼及復(fù)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?。用途: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(dāng)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。南京NH45R焊絲廠家</p><p style="text-indent:25px">簡敏精密五金制造(上海)有限公司主要經(jīng)營范圍是五金、工具，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場口碑。簡敏五金制造致力于為客戶提供良好的模具焊條，模具焊絲，特種焊絲，特種焊條，一切以用戶需求為中心，深受廣大客戶的歡迎。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(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來源地址: 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