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clearfix"><div id="zl55tzf" class="twoCol"><div id="nzdzpd5" 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>?浙江模具焊絲廠歡迎來電簡(jiǎn)敏精密五金制造供應(yīng)</p><div id="thnjhlz" class="leftbox clearfix"><h1>浙江模具焊絲廠歡迎來電簡(jiǎn)敏精密五金制造供應(yīng)</h1><div id="jbfdzvb" class="proBig"><div id="dr53t53" 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="brp37fr" 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="v5jd5hp" 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>浙江模具焊絲廠,焊絲</p><p><span>***更新：</span>2020-08-17 22:14:12</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="hv3dtrv" 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="ptxdfzn" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="bdbzfjx" class="box"><p><p> 對(duì)電焊鉗的要求是：在任何斜度都能夾緊焊條；具有可靠的絕緣和良好的隔熱性能；電纜的橡膠包皮應(yīng)伸入到鉗柄內(nèi)部，使導(dǎo)體不外露，起到屏護(hù)作用；輕便、易于操作。電焊鉗的規(guī)格和主要技術(shù)數(shù)據(jù)見表3—5。表3—5電焊鉗的規(guī)格和主要技術(shù)數(shù)據(jù)規(guī)格(A)額定值適用焊條直徑(mm)耐電壓性能(V／min)能連接的比較大電纜截面(mm2)負(fù)載持續(xù)率(％)工作電壓(V)工作電流(A)～32300～26160～100035(二)焊接電纜焊條電弧焊在工作中除焊接設(shè)備外，還必須有焊接電纜。焊接電纜應(yīng)采用橡皮絕緣多股軟電纜，根據(jù)焊機(jī)的容量，選取適當(dāng)?shù)碾娎|截面，選取時(shí)可參考表3—6。如果焊機(jī)距焊接工作點(diǎn)較遠(yuǎn)，需要較長(zhǎng)電纜時(shí)，應(yīng)當(dāng)加大電纜截面積使在焊接電纜上的電壓降不超過4V，以保證引弧容易及電弧燃燒穩(wěn)定。不允許用扁鐵搭接或其它辦法來代替連接焊接的電纜，以免因接觸不良而使回路上的壓降過大，浙江模具焊絲廠，造成引弧困難和焊接電弧的不穩(wěn)定。表3—6焊接電纜選用表比較大焊接電流(A)0焊接電纜截面積(mm2)25507095焊機(jī)和焊接手柄與焊接電纜的接頭必須擰緊，表面應(yīng)保持清潔，以保證其良好的導(dǎo)電性能。不良的接觸會(huì)損耗電能，還會(huì)導(dǎo)致焊機(jī)過熱將接線板燒毀或使電焊鉗過熱而無法工作。。焊材內(nèi)部空間受到限制，焊劑顆粒的大小愈顯得重要，浙江模具焊絲廠，顆粒間形成類似鳥，浙江模具焊絲廠.巢般結(jié)合，焊劑成份元素不均勻。浙江模具焊絲廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江模具焊絲廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265669208984/3318362.png"></div><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(chǎng)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(jí)（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(guó)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）。蘇州SKD-11焊絲批發(fā)焊接時(shí)，送絲較實(shí)心焊絲困難。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江模具焊絲廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265666699219/955806.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(cè)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> 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。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，避免出現(xiàn)夾渣。填充層以2層為宜，較薄的焊層。制造/生產(chǎn)過程中如何不使焊絲內(nèi)因管制不良而造成部分線材形成中空（沒有焊劑）是藥芯焊絲生產(chǎn)品質(zhì)的關(guān)鍵。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江模具焊絲廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265669218750/3372736.png"></div><p> 分別是焊條的送進(jìn)運(yùn)動(dòng)、焊條的橫向擺動(dòng)運(yùn)動(dòng)和焊條的沿焊縫移動(dòng)運(yùn)動(dòng)，詳見圖3—16。焊條的三個(gè)基本運(yùn)動(dòng)1—焊條送進(jìn)2—焊條擺動(dòng)3—沿焊縫移動(dòng)(1)焊條的送進(jìn)運(yùn)動(dòng)。主要是用來維持所要求的電弧長(zhǎng)度。由于電弧的熱量熔化了焊條端部，電弧逐漸變長(zhǎng)，有熄弧的傾向。要保持電弧繼續(xù)燃燒，必須將焊條向熔池送進(jìn)，直至整根焊條焊完為止。為保證一定的電弧長(zhǎng)度，焊條的送進(jìn)速度應(yīng)與焊條的熔化速度相等，否則會(huì)引起電弧長(zhǎng)度的變化，影響焊縫的熔寬和熔深。(2)焊條的擺動(dòng)和沿焊縫移動(dòng)。這兩個(gè)動(dòng)作是緊密相聯(lián)的，而且變化較多、較難掌握。通過兩者的聯(lián)合動(dòng)作可獲得一定寬度、高度和一定熔深的焊縫。所謂焊接速度即單位時(shí)間內(nèi)完成的焊縫長(zhǎng)度。如圖3—17，表示焊接速度對(duì)焊縫成形的影響。焊接速度太慢，會(huì)焊成寬而局部隆起的焊縫；太快，會(huì)焊成斷續(xù)細(xì)長(zhǎng)的焊縫；焊接速度適中時(shí)，才能焊成表面平整，焊波細(xì)致而均勻的焊縫。焊接速度對(duì)焊縫成形的影響(3)運(yùn)條手法。為了控制熔池溫度，使焊縫具有一定的寬度和高度，在生產(chǎn)中經(jīng)常采用下面幾種運(yùn)條手法。1)直線形運(yùn)條法。采用直線形運(yùn)條法焊接時(shí)，應(yīng)保持一定的弧長(zhǎng)，焊條不擺動(dòng)并沿焊接方向移動(dòng)。由于此時(shí)焊條不作橫向擺動(dòng)，所以熔深較大。?焊絲包裝成卷或成桶以避免線材相互糾纏或折損。南京特種焊絲批發(fā)</p><p style="text-indent:25px">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。浙江模具焊絲廠</p><p> 特別對(duì)抗氯離子點(diǎn)蝕有好處。采用直流反接，可進(jìn)行全位置焊接。用途:用于低碳的0Cr18Ni12Mo2不銹鋼設(shè)備，也可焊接焊后不進(jìn)行熱處理的高鉻鋼（如Cr13、Cr17）,以及用于焊接異種鋼的焊接。A212不銹鋼焊條符合GBE318-16相當(dāng)AWSE318-16說明:A212是鈦鈣型藥皮的低碳含Nb穩(wěn)定劑的Cr18Ni12Mo2Nb不銹鋼焊條。其熔敷金屬比A202、A207具有更好的抗晶間腐蝕性能。有優(yōu)良的操作工藝性能，可交直流兩用。用途:用于重要的0Cr18Ni12Mo2、00Cr17Ni14Mo2等不銹鋼的焊接，如尿素合成塔、維尼綸設(shè)備等接觸強(qiáng)腐蝕介質(zhì)的工件。A222不銹鋼焊條符合GBE317MoCu-16說明:A222是鈦鈣型藥皮的低碳Cr19Ni13Mo2Cu不銹鋼焊條，由于熔敷金屬含有Cu，在酸性介質(zhì)中具有比其它不銹鋼焊條更好的耐蝕性能。有優(yōu)良的焊接工藝性能，可交直流兩用。用途:用于焊接相同類型的含Cu不銹鋼設(shè)備。A232不銹鋼焊條符合GBE318V-16說明:A232是鈦鈣型藥皮的低碳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。有優(yōu)良的焊接工藝性能，可交直流兩用。用途:焊接一般耐熱及有一定耐蝕性的Cr19Ni10及0Cr18Ni12Mo2不銹鋼結(jié)構(gòu)。浙江模具焊絲廠</p><p style="text-indent:25px">簡(jiǎn)敏精密五金制造(上海)有限公司于2016-12-05成立，注冊(cè)資本100-200萬元元，現(xiàn)有專業(yè)技術(shù)人員51~100人人，各種專業(yè)人員齊備。在簡(jiǎn)敏五金制造近多年發(fā)展歷史，公司旗下現(xiàn)有品牌簡(jiǎn)敏等。我公司擁有強(qiáng)大的技術(shù)實(shí)力，多年來一直專注于精密五金、普通機(jī)械設(shè)備加工(限分支機(jī)構(gòu)經(jīng)營(yíng))、銷售;模具加工(限分支機(jī)構(gòu)經(jīng)營(yíng))及維修;工業(yè)設(shè)備、包裝材料、焊材、五金配件的加工(以上限分支機(jī)構(gòu)經(jīng)營(yíng))、銷售;工業(yè)自動(dòng)化設(shè)備安裝及維修(除特種設(shè)備);自行車及配件(電動(dòng)自行車按本市產(chǎn)品目錄經(jīng)營(yíng))、蓄電池、橡膠制品、電動(dòng)工具、焊接材料、汽車配件、金屬材料、鋼材、建材的批發(fā)兼零售。的發(fā)展和創(chuàng)新，打造高指標(biāo)產(chǎn)品和服務(wù)。簡(jiǎn)敏精密五金制造(上海)有限公司主營(yíng)業(yè)務(wù)涵蓋[ "模具焊條", "模具焊絲", "特種焊絲", "特種焊條" ]，堅(jiān)持“質(zhì)量***、質(zhì)量服務(wù)、顧客滿意”的質(zhì)量方針，贏得廣大客戶的支持和信賴。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/950012.html</p></div></div></div></div></div><div id="pnlz7tp" class="page-right twoColRt"><div id="pxnbxt5" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lxvtzdj" class="recomPic likePro"><a 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