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clearfix"><div id="vmi784q" class="twoCol"><div id="rjzijcs" 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H13焊絲供應(yīng)商歡迎咨詢簡敏精密五金制造供應(yīng)</p><div id="dvriouo" class="leftbox clearfix"><h1>南京H13焊絲供應(yīng)商歡迎咨詢簡敏精密五金制造供應(yīng)</h1><div id="egrgwhx" class="proBig"><div id="jbrmh8w" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265685117187/5944643.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="woj3t8y" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265685117187/5944643.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="c8duozz" 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H13焊絲供應(yīng)商,焊絲</p><p><span>***更新：</span>2020-10-29 06:10:50</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="bte8hfk" 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(hào)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="pstj3x2" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="yff8wgb" class="box"><p><p> 電弧周圍形成多種有害氣體，其中主要有臭氧、氮氧化物、一氧化碳和氟化氫等。臭氧是一種刺激性氣體，呈淡藍(lán)色。濃度較高時(shí)，南京H13焊絲供應(yīng)商，發(fā)出腥臭味；高濃度臭氧還略帶酸味。臭氧對人體的主要危害是對呼吸道及肺有強(qiáng)烈刺激作用，南京H13焊絲供應(yīng)商。往往引起咳嗽、胸悶、食欲不振、疲勞無力、頭暈、全身疼痛等，嚴(yán)重時(shí)還會(huì)引起***和肺水腫等。氮氧化物是刺激性氣體。二氧化氮呈紅褐色，具有特殊臭味。氮氧化物對人體的危害主要是對肺組.織的刺激作用。其被吸人呼吸道后，在肺泡內(nèi)逐漸與水作用形成硝酸和亞硝酸，對肺組.織產(chǎn)生強(qiáng)烈刺激和腐蝕作用，引起中毒。慢性中毒的主要癥狀是神經(jīng)衰弱，如***、***、食欲不振、體重下降。濃度高的氮氧化物能引起急性中毒，其中毒輕者，*發(fā)生急性***；重度中毒時(shí)，引發(fā)咳嗽激烈、呼吸困難、虛脫、全身軟弱無力等癥狀，南京H13焊絲供應(yīng)商。氮氧化物對人體的作用也是可逆的，隨著脫離作業(yè)時(shí)間的增長，其不良影響逐漸減少或消除。在鎢極氬弧焊時(shí)，如果不采取通風(fēng)措施，其濃度往往超過衛(wèi)生標(biāo)準(zhǔn)十幾倍，甚至幾十倍。我國規(guī)定的氮氧化物(換算成二氧化氮)的衛(wèi)生標(biāo)準(zhǔn)為5mg／m3。在焊接過程中，通常臭氧和氮氧化物同時(shí)存在，因此它們的毒性更大。一般情況下。存取及搬運(yùn)焊絲時(shí)小心不要弄破包裝，特別是內(nèi)包裝“熱收縮膜”。南京H13焊絲供應(yīng)商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京H13焊絲供應(yīng)商,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265685117187/5944643.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?？山恢绷鲀捎?。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。可交直流兩用，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。南京H13焊絲供應(yīng)商?自保護(hù)藥芯焊絲，是在氣保護(hù)藥芯焊絲問市不久，便被發(fā)展出來，也很快的被工業(yè)界廣為認(rèn)同于特定的用途上。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京H13焊絲供應(yīng)商,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265685263672/7237309.png"></div><p> 主回路斷電。同時(shí)Jc-2斷開，控制回路斷電，焊機(jī)全部停止工作。焊接電流的調(diào)節(jié)依靠面板上的電流調(diào)節(jié)控制器，來改變磁放大器控制或線圈中直流電大小使鐵芯中的磁通發(fā)生相應(yīng)變化，從而調(diào)整了焊接電流的大小。熱將接線板燒毀或使由焊鉗過熱而無法工作。三、負(fù)載持續(xù)率焊接設(shè)備銘牌中都標(biāo)有負(fù)載持續(xù)率。負(fù)載持續(xù)率是用來表示焊接設(shè)備工作狀態(tài)的參數(shù)，它是在選定的工作時(shí)間周期內(nèi)允許焊接設(shè)備連續(xù)負(fù)載的時(shí)間。眾所周知，焊接設(shè)備工作時(shí)會(huì)發(fā)熱，溫升過高會(huì)把焊接設(shè)備的線包絕緣燒毀(一般焊接設(shè)備的溫度不得超過60～80℃)。溫升與焊接電流大小有關(guān)，同時(shí)也與焊機(jī)使用狀態(tài)有關(guān)，連續(xù)運(yùn)轉(zhuǎn)與斷續(xù)使用時(shí)溫升情況不一樣。負(fù)載持續(xù)率計(jì)算方法如下：標(biāo)準(zhǔn)規(guī)定：500A以下的焊接設(shè)備選定的工作時(shí)間周期為5分鐘。計(jì)算時(shí)，每個(gè)5分鐘內(nèi)測出電弧燃燒時(shí)間，代入式中即得出焊機(jī)負(fù)載持續(xù)率。表3—3和表3—4給出了交流弧焊機(jī)BX3一300的負(fù)載持續(xù)率和硅整流弧焊機(jī)ZXG一300的負(fù)載持續(xù)率及相應(yīng)的工作電流。表3—3BX3—300交流弧焊機(jī)負(fù)載持續(xù)率負(fù)載持續(xù)率(％)焊接電流(A)表3—4ZXG—300硅整流弧焊機(jī)負(fù)載持續(xù)率負(fù)載持續(xù)率(％)焊接電流(A)四、焊機(jī)的外特性在規(guī)定范圍內(nèi)。</p><p> 去渣容易，不易產(chǎn)生氣孔和夾渣。但藥皮氧化性強(qiáng)使合金元素?zé)龘p大,機(jī)械性能（沖擊韌性）比較低。酸性焊條一般均可用交直流電源。典型的酸性焊條是J422。堿性焊條焊接的焊縫機(jī)械性能良好，特別是沖擊韌性比較高，主要用于重要結(jié)構(gòu)的焊接。氟化物粉塵有害，應(yīng)加強(qiáng)現(xiàn)場的通風(fēng)排氣，以改善勞動(dòng)條件。典型的堿性焊條有J507。按焊條藥皮主要成分分類當(dāng)藥皮中含有30％以上的二氧化鈦及20％以下的鈣、鎂的碳酸鹽時(shí)，就稱為鈦鈣型。結(jié)構(gòu)鋼焊條牌號(hào)J422，中“J”表示結(jié)構(gòu)鋼焊條,按用途分***、二位數(shù)字“42”表示焊縫金屬的抗拉強(qiáng)度等級（用MPa值的1/10表示），末位數(shù)字“2”表示藥皮類型及焊接電源的種類奧氏體鉻鎳不銹鋼焊條牌號(hào)A132中“A”表示奧氏體不銹鋼焊條；***、第二位數(shù)字表示焊縫金屬主要化學(xué)成分組成。末位數(shù)字表示藥皮類型和焊接電源種類焊條型號(hào)：是以焊條國家標(biāo)準(zhǔn)為依據(jù)、反映焊條主要特性的一種表示方法。焊條型號(hào)根據(jù)焊縫金屬的力學(xué)性能、藥皮類型、焊接位置和焊接電流種類劃分。碳鋼焊條型號(hào)E4315中“E”表示焊條；前兩位數(shù)字表示熔敷金屬抗拉強(qiáng)度的最小值，單位為MPa值的1/10；第三位數(shù)字表示焊條焊接位置，“0”及“1”表示用于全位置焊接（平、立、仰、橫）。為了防止焊絲生銹,須對焊絲(除不銹鋼焊絲外)表面進(jìn)行特殊處理。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京H13焊絲供應(yīng)商,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265671406250/559850.png"></div><p> 兩種氣體同時(shí)存在比單一氣體的危害作用高15--20倍。防護(hù)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(jī)集中的地方，安裝幾臺(tái)軸流風(fēng)機(jī)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(jī)等。（2）防護(hù)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(shí)，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(gè)人防護(hù)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(hù)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(shí)間。（4）其它個(gè)人防護(hù)措施氬弧焊時(shí)，由于臭氧和紫外線作用強(qiáng)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(gè)人防護(hù)措施?！珰寤『副仨氉⒁獾膸讉€(gè)細(xì)節(jié)。。。1930年美國發(fā)明惰性氣體保護(hù)焊。若外觀顏色匹配是重要指標(biāo)時(shí)，選擇焊絲時(shí)必須考慮所形成焊縫組.織的成分及組.織。南京H13焊絲供應(yīng)商</p><p style="text-indent:25px">藥芯焊絲的制造過程控制非常嚴(yán)謹(jǐn)，由于熔填金屬來自鋼片皮材及焊劑所含的成份。南京H13焊絲供應(yīng)商</p><p> 其癥狀是出現(xiàn)兩眼高度羞明、流淚、異物感、刺痛、眼瞼***、痙攣、并伴有***和視物模糊。焊接煙塵的危害焊接過程中會(huì)產(chǎn)生大量的金屬焊接粉塵，焊接產(chǎn)生的金屬粉直徑很小，較容易吸肺部，因直徑很小很難排出體外，故發(fā)生病變。焊接電流強(qiáng)度越大粉塵濃度越高。在焊接粉塵濃度較大的情況下，又沒有相應(yīng)的排塵措施時(shí)，長期接觸焊接粉塵能引起焊工塵肺、錳中毒和金屬熱等職業(yè)疾病。生殖毒性，近10年來國內(nèi)外開展了一些關(guān)于電焊作業(yè)生殖毒性的研究，主要涉及男工**質(zhì)量、女工生殖結(jié)局及損害機(jī)制。研究表明：電焊女工月經(jīng)的經(jīng)量增加、周期縮短、經(jīng)期延長、白帶增加，自然流產(chǎn)、早產(chǎn)、痛經(jīng)、均較對照組高。錳中毒男工**外觀呈均勻灰白色，PH值正常，平均液化時(shí)間比對照組延長。檢驗(yàn)結(jié)果證明，錳中毒男工平均一次**量、精子總數(shù)、精子存活率及活動(dòng)精子率均比對照組下降，錳中毒男工精子畸形率明顯高于對照組。認(rèn)為金屬錳能夠影響男工生精系統(tǒng)，對精子的發(fā)育有直接毒作用，并能殺傷精子，從而引起男性**質(zhì)量的改變。國外也有報(bào)道電焊作業(yè)工人性***分泌改變，精子質(zhì)量下降，但對子代的性別比例沒有影響有害氣體的危害在焊接電弧高溫和強(qiáng)烈紫外線的作用下。南京H13焊絲供應(yīng)商</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)型的公司。公司業(yè)務(wù)涵蓋模具焊條，模具焊絲，特種焊絲，特種焊條等，價(jià)格合理，品質(zhì)有保證。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。簡敏五金制造立足于全國市場，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: 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