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當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<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>?昆山GZ60S焊絲廠歡迎咨詢簡(jiǎn)敏精密五金制造供應(yīng)</p><div id="fo8ldkm" class="leftbox clearfix"><h1>昆山GZ60S焊絲廠歡迎咨詢簡(jiǎn)敏精密五金制造供應(yīng)</h1><div id="etvcelc" class="proBig"><div id="qfczwdf" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265671318359/8288159.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="wbd8pbi" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265671318359/8288159.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="y8fmj23" 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>昆山GZ60S焊絲廠,焊絲</p><p><span>***更新：</span>2020-11-20 00:16:53</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="bpm7dfr" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">簡(jiǎn)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="fproq49" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="v7pm3xp" 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)，發(fā)出腥臭味；高濃度臭氧還略帶酸味。臭氧對(duì)人體的主要危害是對(duì)呼吸道及肺有強(qiáng)烈刺激作用。往往引起咳嗽、胸悶、食欲不振、疲勞無(wú)力、頭暈、全身疼痛等，昆山GZ60S焊絲廠，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(duì)人體的危害主要是對(duì)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(duì)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(wú)力等癥狀。氮氧化物對(duì)人體的作用也是可逆的，隨著脫離作業(yè)時(shí)間的增長(zhǎng)，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(guò)衛(wèi)生標(biāo)準(zhǔn)十幾倍，甚至幾十倍。我國(guó)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(guò)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。?自保護(hù)藥芯焊絲，昆山GZ60S焊絲廠，是在氣保護(hù)藥芯焊絲問(wèn)市不久，昆山GZ60S焊絲廠，便被發(fā)展出來(lái)，也很快的被工業(yè)界廣為認(rèn)同于特定的用途上。昆山GZ60S焊絲廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆山GZ60S焊絲廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265671318359/8288159.jpg"></div><p> 放射性氣溶膠是造成人體內(nèi)照射的主要威脅。強(qiáng)電弧光的危害焊接弧光輻射主要有可見(jiàn)光、紅外線和紫外線。它們作用到人體上，被人體組.織吸收，引起組.織的熱作用、光化學(xué)作用或電離作用，使人體組.織受到損傷。可見(jiàn)光線的光度比肉眼正常承受的光度大約大到一萬(wàn)倍左右，當(dāng)可見(jiàn)光線輻射人的眼睛時(shí)，會(huì)產(chǎn)生疼痛感，看不清東西，通常叫“晃眼”，在短時(shí)間內(nèi)失去勞動(dòng)能力。紅外線對(duì)人體的危害主要是引起組.織的熱作用。在焊接過(guò)程中，眼部受到強(qiáng)烈的紅外線輻射，會(huì)立即感到強(qiáng)烈的灼傷和灼痛，發(fā)生閃光幻覺(jué)。長(zhǎng)期接觸可能造成紅外線白內(nèi)障、視力減退，嚴(yán)重時(shí)可導(dǎo)致失明。紫外輻射(ultravioletradiation，UV)又稱紫外線，是指波長(zhǎng)在100—400nm的電磁波。適量的紫外線照射可以對(duì)人體產(chǎn)生有益的作用，但是過(guò)量照射會(huì)對(duì)人體造成不良的影響(如電焊紫外輻射)。紫外線對(duì)人體的危害主要是光化學(xué)作用，對(duì)人體皮膚和眼睛造成損害。皮膚受到強(qiáng)烈的紫外線輻射后，可引起皮炎，彌漫性紅斑，有時(shí)出現(xiàn)小水泡、滲出液，有燒灼感，發(fā)癢；作用強(qiáng)烈時(shí)伴有全身癥狀：***、頭暈、易疲勞、神經(jīng)興奮、發(fā)燒、***等。紫外線過(guò)度照射人的眼睛，可引起眼睛急性角膜和結(jié)膜炎，即電光眼炎。上海SM2R焊絲銷售廠自保護(hù)藥芯焊絲，是在氣保護(hù)藥芯焊絲問(wèn)市不久，便被發(fā)展出來(lái)，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="昆山GZ60S焊絲廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265671406250/559850.png"></div><p> 因接觸面很小，溫度急劇上升，在未熔化前，將焊條提起，產(chǎn)生電弧的引弧方法。此種方法易于掌握，但容易沾污坡口，影響焊接質(zhì)量。上述兩種引弧方法應(yīng)根據(jù)具體情況靈活應(yīng)用。擦劃法引弧雖比較容易，但這種方法使用不當(dāng)時(shí)，會(huì)擦傷焊件表面。為盡量減少焊件表面的損傷，應(yīng)在焊接坡口處擦劃，擦劃長(zhǎng)度以20～25mm為宜。在狹窄的地方焊接或焊件表面不允許有劃傷時(shí)，應(yīng)采用碰擊法引弧。碰擊法引弧較難掌握，焊條的提起動(dòng)作太快并且焊條提得過(guò)高，電弧易熄滅；動(dòng)作太慢，會(huì)使焊條粘在工件上。當(dāng)焊條一旦粘在工件上時(shí)，應(yīng)迅速將焊條左右擺動(dòng)，使之與焊件分離；若仍不能分離時(shí)，應(yīng)立即松開(kāi)焊鉗切斷電源，以免短路時(shí)間過(guò)長(zhǎng)而損壞電焊機(jī)。(3)引弧的技術(shù)要求。在引弧處，由于鋼板溫度較低，焊條藥皮還沒(méi)有充分發(fā)揮作用，會(huì)使引弧點(diǎn)處的焊縫較高，熔深較淺，易產(chǎn)生氣孔，所以通常應(yīng)在焊縫起始點(diǎn)后面10mm處引弧，如圖3—15。引燃電弧后拉長(zhǎng)電弧，并迅速將電弧移至焊縫起點(diǎn)進(jìn)行預(yù)熱。預(yù)熱后將電弧壓短，酸性焊條的弧長(zhǎng)約等于焊條直徑，堿性焊條的弧長(zhǎng)應(yīng)為焊條直徑的一半左右，進(jìn)行正常焊接。采用上述引弧方法即使在引弧處產(chǎn)生氣孔，也能在電弧第二次經(jīng)過(guò)時(shí)，將這部分金屬重新熔化。</p><p> 且焊縫寬度較窄。在正常的焊接速度下，焊波飽滿平整。此法適用于板厚3～5mm的不開(kāi)坡口的對(duì)接平焊、多層焊的***層焊道和多層多道焊。2)直線往返形運(yùn)條法。此法是焊條末端沿焊縫的縱向作來(lái)回直線形擺動(dòng)，如圖3—18所示，主要適用于薄板焊接和接頭間隙較大的焊縫。其特點(diǎn)是焊接速度快，焊縫窄，散熱快。直線往返形運(yùn)條法3)鋸齒形運(yùn)條法。此法是將焊條末端作鋸齒形連續(xù)擺動(dòng)并向前移動(dòng)，如圖3—19所示，在兩邊稍停片刻，以防產(chǎn)生咬邊缺點(diǎn)。這種手法操作容易、應(yīng)用較廣，多用于比較厚的鋼板的焊接，適用于平焊、立焊、仰焊的對(duì)接接頭和立焊的角接接頭。鋸齒形運(yùn)條法4)月牙形運(yùn)條法。如圖3—20所示，此法是使焊條末端沿著焊接方向作月牙形的左右擺動(dòng)，并在兩邊的適當(dāng)位置作片刻停留，以使焊縫邊緣有足夠的熔深，防止產(chǎn)生咬邊缺點(diǎn)。此法適用于仰、立、平焊位置以及需要比較飽滿焊縫的地方。其適用范圍和鋸齒形運(yùn)條法基本相同，但用此法焊出來(lái)的焊縫余高較大。其優(yōu)點(diǎn)是，能使金屬熔化良好，而且有較長(zhǎng)的保溫時(shí)間，熔池中的氣體和熔渣容易上浮到焊縫表面，有利于獲得高質(zhì)量的焊縫。月牙形運(yùn)條法5)三角形運(yùn)條法。如圖3—21所示，此法是使焊條末端作連續(xù)三角形運(yùn)動(dòng)，并不斷向前移動(dòng)。焊劑為堿性系統(tǒng)的焊材可使熔填金屬獲得非常優(yōu)良的延性與韌性，但作業(yè)性遠(yuǎn)較酸性系為差。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆山GZ60S焊絲廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265666699219/955806.png"></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(shí)，臭氧的濃度可增大到危險(xiǎn)程度，在焊接過(guò)程中，還會(huì)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(duì)焊工產(chǎn)生一定的危害。所以我們?cè)诤附舆^(guò)程中要做好防護(hù)，選用電極的材料，要盡量選用放射性小的鈰鎢。磨削電極時(shí)，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(chǎng)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(chǎng)強(qiáng)度140～190V/m。引弧時(shí)，產(chǎn)生的高頻電磁場(chǎng)強(qiáng)度在60～110V/m之間，超過(guò)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(shí)，常用高頻振蕩器來(lái)激發(fā)引弧，有的交流氬弧焊機(jī)還用高頻振蕩器來(lái)穩(wěn)定電弧。人體在高頻電磁場(chǎng)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(chǎng)強(qiáng)度受許多因素影響，如距離，振蕩器和振蕩回路越近場(chǎng)強(qiáng)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(chǎng)作用下會(huì)產(chǎn)生生物學(xué)效應(yīng)，焊工長(zhǎng)期接觸高頻電磁場(chǎng)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。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。上海SM2R焊絲銷售廠</p><p style="text-indent:25px">通常成卷絲材均以塑膠套包封后并放置干燥劑使避免材料受潮，包封后的材料再放入硬紙盒內(nèi)送出。昆山GZ60S焊絲廠</p><p style="text-indent:25px">五金、工具包括各種手動(dòng)、電動(dòng)、氣動(dòng)、切割工具、汽保工具、農(nóng)用工具、起重工具、測(cè)量工具、工具機(jī)械、切削工具、工夾具、模具、刃具、砂輪、鉆頭、拋光機(jī)、工具配件、量具刃具、磨具磨料等。近幾年隨著全球經(jīng)濟(jì)一體化進(jìn)程的加快，中國(guó)模具焊條，模具焊絲，特種焊絲，特種焊條加工工業(yè)逐步成為世界五金工具產(chǎn)業(yè)的主力軍。無(wú)論在全球工具市場(chǎng)，還是在中國(guó)工具市場(chǎng)，模具焊條，模具焊絲，特種焊絲，特種焊條的應(yīng)用之廣、需求量之大超乎想象?！笆濉逼陂g，有限責(zé)任公司（自然）企業(yè)要繼續(xù)堅(jiān)持由粗放型向集約型轉(zhuǎn)變、由勞動(dòng)密集型向技術(shù)密集型轉(zhuǎn)變、由量的擴(kuò)張向質(zhì)的提升轉(zhuǎn)變、由低成本低價(jià)格向高附加值高收入率提升轉(zhuǎn)變、由以貼牌出口為主向逐步提高自主品牌出口比重轉(zhuǎn)變，樹(shù)立高標(biāo)準(zhǔn)、高質(zhì)量的發(fā)展理念，采用技術(shù)改造傳統(tǒng)產(chǎn)業(yè)，加大科技與研發(fā)，提高產(chǎn)品附加值，真正實(shí)現(xiàn)由大到強(qiáng)的轉(zhuǎn)變。五金行業(yè)正從傳統(tǒng)意義上的工具行業(yè)轉(zhuǎn)向時(shí)尚行業(yè)。消費(fèi)正趨向個(gè)性化、注重質(zhì)量，價(jià)格合理及更多的選擇。順應(yīng)潮流，五金生產(chǎn)型企業(yè)毫無(wú)選擇地要向客戶提供具有創(chuàng)意的工具，滿足他們的個(gè)性化需求。昆山GZ60S焊絲廠</p><p style="text-indent:25px">簡(jiǎn)敏精密五金制造(上海)有限公司致力于五金、工具，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。公司自創(chuàng)立以來(lái)，投身于模具焊條，模具焊絲，特種焊絲，特種焊條，是五金、工具的主力軍。簡(jiǎn)敏五金制造致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶產(chǎn)品上的貼心，為用戶帶來(lái)良好體驗(yàn)。簡(jiǎn)敏五金制造始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使簡(jiǎn)敏五金制造在行業(yè)的從容而自信。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2058453.html</p></div></div></div></div></div><div id="hw7nftk" class="page-right twoColRt"><div id="tik3wyo" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="2mbs3xz" 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" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="bqikrlh" 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