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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="3vx4e7k" 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="b7c2xhy" 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>山東模具焊絲批發(fā),焊絲</p><p><span>***更新：</span>2020-07-19 07:13:24</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="k7zwtax" 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="jipz2wi" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="os7eg3a" class="box"><p><p> 要做到以下要求：一是為了保證試板坡口兩側(cè)有良好的熔合，采用的焊接電流宜稍大，當(dāng)用ф，焊接電流以90A為宜；二是要采用短弧施焊，以利于保護(hù)熔池，同時(shí)利用電弧作用力把熔池鐵液托住，并且把部分熔滴過渡到試件背面（即上面）；三要使后續(xù)熔池覆蓋前一熔池的1/2，并適當(dāng)提高焊接速度，以減小熔深，減小液態(tài)金屬自身重力，避免焊縫金屬下垂上凹；四是保持正確的運(yùn)條方式，使焊條與試板左右兩側(cè)呈90o，并與焊接方向呈70o～80o的夾角。施焊時(shí)，焊件背面應(yīng)保持2/3弧柱，以利于熔滴過渡和熔池保護(hù)。運(yùn)條時(shí)應(yīng)左右輕微擺動(dòng)。當(dāng)焊至接近試板中部時(shí)，因變形使間隙變窄，此時(shí)可不使焊條左右橫向擺動(dòng)，而沿焊接方向連弧焊接；五是更換焊條接頭要迅速，應(yīng)在接頭部位處于紅熱狀態(tài)下迅速引弧，盡快恢復(fù)焊接狀態(tài)，這樣可使接頭處成形良好，也可減少氣孔、夾渣等缺點(diǎn)。填充層的焊接填充層采用左右擺動(dòng)運(yùn)條方式連弧焊接，操作昱應(yīng)注意兩點(diǎn)：一要使焊條與試板在左右方向上處于垂直狀態(tài)，以避免填充層焊縫左右不等厚，影響焊縫成形，山東模具焊絲批發(fā)。為了把握好角度，有的焊工改用雙手握焊鉗施焊，效果不錯(cuò)；二要將道間熔渣清理干凈，山東模具焊絲批發(fā)，避免出現(xiàn)夾渣。填充層以2層為宜，較薄的焊層，山東模具焊絲批發(fā)。?有些合金，如鈷鉻鎢合金，不能鍛、軋和拔絲，而用鑄造方法制成。山東模具焊絲批發(fā)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東模具焊絲批發(fā),焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265668525390/8688498.png"></div><p> 有利于保證焊縫的機(jī)械性能。不重要的焊縫也可用基本金屬切條作焊絲。氣體熔劑：由硼酸甲醇的混合液（沸點(diǎn)55℃）揮發(fā)而成。由乙炔帶入火焰中與氧反應(yīng)生成硼酐（B2O3）、二氧化碳和水蒸氣。硼酐凝結(jié)到基本金屬及焊絲上。焊接時(shí)產(chǎn)生強(qiáng)烈脫氧作用，與氧化物生成硼酸鹽，以鹽膜狀態(tài)浮在熔池表面，能有效地防止鋅的蒸發(fā)。氣體熔劑已成功地應(yīng)用于黃銅的焊接和堆焊上。（2）火焰性質(zhì)：預(yù)熱時(shí)采用中性火焰，以免工件表面氧化。而焊接時(shí)應(yīng)采用輕微氧化焰，這是因?yàn)檩p微氧化焰雖然燒損一部分鋅，使熔池表面形成一層氧化鋅薄膜（熔點(diǎn)1800℃），但它支能防止熔池中的鋅大量蒸發(fā)。輕微氧化焰到何種程度為宜，一般是對(duì)好中性焰后，用手稍微調(diào)一下氧氣調(diào)節(jié)閥，聽到有“吃、吃”聲就可以了。（3）焊粉的使用方法：一般不將焊粉灑在工件上。為了節(jié)省沾焊粉時(shí)間，將焊粉倒入長槽中，再把用焊炬加熱的焊絲橫放在焊粉中滾動(dòng)，使焊絲表面沾上一層焊粉（約為—1毫米厚），然后排列在傾斜的架子上，以備使用。（4）操作要點(diǎn)：焊炬上下跳動(dòng)，不作橫向擺動(dòng)。焊速較快。其它與紫銅氣焊相同。2．黃銅的焊條電弧焊焊條采用青銅芯焊條，如ECuSn-B（T227）、ECuAl-C（T237）。山東模具焊絲批發(fā)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="山東模具焊絲批發(fā),焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265671406250/559850.png"></div><p> 不受阻擋。安裝架13的水平板上方的靠后位置處左右居中安裝有立塊14，立塊14上開有前后貫通的焊條穿孔14a，在立塊14的前方水平安裝有正對(duì)焊條穿孔14a的焊條導(dǎo)向管15。焊條導(dǎo)向管15位于上導(dǎo)向膠輪9與下導(dǎo)向膠輪10圍成的通道的正后方。通過上導(dǎo)向膠輪和下導(dǎo)向膠輪整形的同時(shí)，結(jié)合左、右限位柱和上、下導(dǎo)向膠輪共同確保焊條順利進(jìn)入焊條導(dǎo)向管。安裝架13的上方通過“門”形安裝架16安裝有朝向下方的豎直氣缸6，豎直氣缸6的活塞桿與焊條切斷刀7相連，焊條切斷刀7與立塊14的后壁貼合，并能在豎直氣缸6的帶動(dòng)下上下運(yùn)動(dòng)，從而將經(jīng)焊條導(dǎo)向管15、焊條穿孔14a出來的焊條切斷。比較好是，“門”形安裝架16由兩根立柱16a和一塊支撐板16b組成，兩根立柱16a左右對(duì)稱布置在支撐板16b的下方。安裝架13的豎直板下端帶有兩個(gè)左右間隔布置的條形缺口13a，螺栓8穿過對(duì)應(yīng)的條形缺口13a，將安裝架13固定在工作臺(tái)12上。上導(dǎo)向膠輪9和下導(dǎo)向膠輪10同步轉(zhuǎn)動(dòng)，首先將焊條穿過從左、右限位柱11中間穿過，再從上導(dǎo)向膠輪9和下導(dǎo)向膠輪10圍成的通道中穿過，進(jìn)入焊條導(dǎo)向管15，***穿過焊條穿孔14a，再啟動(dòng)上導(dǎo)向膠輪9和下導(dǎo)向膠輪10各自的驅(qū)動(dòng)電機(jī)。由上導(dǎo)向膠輪9和下導(dǎo)向膠輪10帶動(dòng)焊條向后移動(dòng)。</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(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(duì)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(duì)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。按照“先進(jìn)先出”的原則發(fā)放焊絲，盡量減少產(chǎn)品庫存時(shí)間。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東模具焊絲批發(fā),焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265685117187/5944643.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^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(qiáng)度140～190V/m。引弧時(shí)，產(chǎn)生的高頻電磁場強(qiáng)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(shí)，常用高頻振蕩器來激發(fā)引弧，有的交流氬弧焊機(jī)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(qiáng)度受許多因素影響，如距離，振蕩器和振蕩回路越近場強(qiáng)越高，反之則越低。此外，與高頻部分的屏蔽程度等有關(guān)。人體在高頻電磁場作用下會(huì)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。電弧穩(wěn)定劑鈉及鉀可以使電弧保持柔和順暢而且降低飛濺。山東模具焊絲批發(fā)</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。山東模具焊絲批發(fā)</p><p> 不銹鋼焊條簡介G202不銹鋼焊條符合GBE410-16相當(dāng)AWSE410-16說明:G202是鈦鈣型藥皮的Cr13不銹鋼焊條，可交直流兩用。用途:用于焊接0Cr13和1Cr13不銹鋼結(jié)構(gòu)，也用于耐蝕、耐磨的表面堆焊。G207不銹鋼焊條符合GBE410-15相當(dāng)AWSE410-15說明:G207是堿***皮的鉻不銹鋼焊條，采用直流反接，可進(jìn)行全位置焊接。用途:用于0Cr13及1Cr13不銹鋼結(jié)構(gòu)焊接，也可用于耐蝕堆焊，可全位置焊接。G217不銹鋼焊條符合GBE410-15相當(dāng)AWSE410-15說明:G217是堿***皮的Cr13不銹鋼焊條，采用直流反接，可進(jìn)行全位置焊接。用途:用于焊接0Cr13和1Cr13、2Cr13不銹鋼結(jié)構(gòu)，如汽輪機(jī)葉片的補(bǔ)焊及對(duì)接，也可用于耐蝕、耐磨的表面堆焊。G302不銹鋼焊條符合GBE430-16相當(dāng)AWSE430-16說明:G302是鈦型藥皮的Cr17不銹鋼焊條，可交直流兩用。用途:用于焊接耐硝酸腐蝕、耐熱的Cr17不銹鋼結(jié)構(gòu)。G307不銹鋼焊條符合GBE430-15相當(dāng)AWSE430-15說明:G307是堿***皮的Cr17不銹鋼焊條，采用直流反接，可進(jìn)行全位置焊接。用途:用于焊接耐硝酸腐蝕、耐熱的Cr17不銹鋼結(jié)構(gòu)。山東模具焊絲批發(fā)</p><p style="text-indent:25px">簡敏精密五金制造(上海)有限公司坐落顧北東路365號(hào)C區(qū)1101，交通便利，環(huán)境優(yōu)美，是一家生產(chǎn)型企業(yè)。公司致力于為客戶提供安全、質(zhì)量有保障的質(zhì)量產(chǎn)品及服務(wù)，是一家有限責(zé)任公司（自然）企業(yè)。公司目前擁有***員工51~100人人，具有[ "模具焊條", "模具焊絲", "特種焊絲", "特種焊條" ]等多項(xiàng)業(yè)務(wù)。簡敏五金制造將以真誠的服務(wù)、創(chuàng)新的理念、***的產(chǎn)品，為彼此贏得全新的未來！</p></p><br /><p>文章來源地址: 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