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src="http://tyunfile.71360.com/UpLoadFile/suzhouanjia/2020/1/637140711437070354/6371407114370703549033763.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="cmol8ya" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/suzhouanjia/2020/1/637140711437070354/6371407114370703549033763.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="hwyqspg" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>鋁合金點(diǎn)焊機(jī)廠家</p><p><span>***更新：</span>2020-06-19 10:28:16</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="eqifctq" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">蘇州安嘉自動化設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>周小姐</p><p><span>郵箱: </span>2207676482@qq.com</p><p><span>電話: </span>13348011036</p><p><span>傳真: </span>0512_68386652</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0512-68383108</p><p><span>地址: </span>蘇州市相城區(qū)渭塘鎮(zhèn)澄陽路3691號</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="8kb7bip" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="fzgi8fr" class="box"><p><p style="text-indent:25px">中頻點(diǎn)焊機(jī)使用時(shí)如發(fā)現(xiàn)交流接觸器吸合不實(shí)，說明電網(wǎng)電壓過低，用戶應(yīng)該首先解決電源問題，電源正常后方可使用。需要指出的是，新購買的中頻點(diǎn)焊機(jī)半個(gè)月內(nèi)如出現(xiàn)主件質(zhì)量問題，可以更換新的中頻點(diǎn)焊機(jī)或者更換主件。中頻點(diǎn)焊機(jī)主機(jī)部分保修一年，長期提供維修服務(wù)。一般情況下用戶通知廠方后，根據(jù)路程遠(yuǎn)近三到七天內(nèi)服務(wù)到位。由于用戶原因而造成的中頻點(diǎn)焊機(jī)損壞不在保修范圍內(nèi)。易損件、消耗件不在保修范圍內(nèi)。由于電極的接觸面積決定著電流密度，電極材料的電阻率和導(dǎo)熱性關(guān)系著熱量的產(chǎn)生和散失，因此，電極的形狀和材料對熔核的形成有***影響。隨著電極端頭的變形和磨損，接觸面積增大，焊點(diǎn)強(qiáng)度將降低。工件表面的氧化物、污垢，鋁合金點(diǎn)焊機(jī)廠家、油和其他雜質(zhì)增大了接觸電阻。過厚的氧化物層甚至?xí)闺娏鞑荒芡ㄟ^。局部的導(dǎo)通，鋁合金點(diǎn)焊機(jī)廠家，由于電流密度過大，則會產(chǎn)生飛濺和表面燒損。氧化物層的存在還會影響各個(gè)焊點(diǎn)加熱的不均勻性，鋁合金點(diǎn)焊機(jī)廠家，引起焊接質(zhì)量波動。因此徹底清理工件表面是保證獲得質(zhì)量接頭的必要條件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鋁合金點(diǎn)焊機(jī)廠家" src="http://tyunfile.71360.com/UpLoadFile/suzhouanjia/2020/1/637140711437070354/6371407114370703549033763.jpg"></div><p> 中頻點(diǎn)焊機(jī)和交流焊接的不同： </p> <p> 1、焊接質(zhì)量 </p> <p> 工頻交流焊機(jī)的調(diào)節(jié)周期較長，對50Hz的電網(wǎng)，焊接時(shí)間調(diào)節(jié)分辨率為20ms。逆變直流點(diǎn)焊機(jī)時(shí)間調(diào)節(jié)分辨率可達(dá)0.25ms(4kHz逆變頻率)，控制精度高。逆變焊機(jī)的反饋控制的響應(yīng)速度明顯加快，輸出穩(wěn)定性好。 </p> <p> 工頻交流焊機(jī)由于電流過零的影響，熱效率低，用晶閘管調(diào)節(jié)電流，當(dāng)電流百分比偏小時(shí)，過零時(shí)間長，影響更大；逆變直流點(diǎn)焊機(jī)輸出電流為脈動直流，在回路電感的作用下為連續(xù)直流輸出，熱效率高，焊接熱輸入穩(wěn)定。 </p> <p> 2、焊接速度 </p> <p> 工頻交流焊機(jī)由于電流過零的影響，加熱時(shí)間相對較長。逆變電阻點(diǎn)焊機(jī)為直流輸出，加熱集中，焊接時(shí)間縮短。 </p> <p> 3、節(jié)能效果 </p> <p> 工頻交流點(diǎn)焊機(jī)工作在50Hz，變壓器損耗大，焊機(jī)功率因素低，回路損耗大。逆變焊機(jī)變壓器工作在較高的頻率(1-4kHz)，損耗很小，直流輸出改善功率因素，節(jié)能效果明顯。 </p> <p> 4、設(shè)備體積與重量 </p> <p> 工頻交流焊機(jī)的變壓器鐵心較大，同樣功率條件下設(shè)備較笨重。逆變直流電阻點(diǎn)焊機(jī)變壓器大大減小，設(shè)備較輕巧。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鋁合金點(diǎn)焊機(jī)廠家" src="http://tyunfile.71360.com/UpLoadFile/2019/7/16/8/636988643806462222_suzhouanjia_5163236.jpg"></div><p style="text-indent:25px">點(diǎn)焊機(jī)的具體使用流程：點(diǎn)焊是焊件拆卸接接頭，并壓緊在兩電極之間，應(yīng)用電阻熱熔化母材金屬，構(gòu)成焊點(diǎn)的電阻焊辦法。點(diǎn)焊多用于薄板的銜接，如飛機(jī)蒙皮、航空發(fā)起機(jī)的火煙筒、汽車駕駛室外殼等。點(diǎn)焊機(jī)焊接變壓器的次級只要一圈回路。上、下電極與電極臂既用于傳導(dǎo)焊接電流，又用于傳遞動力。冷卻旱路經(jīng)過變壓器、電極等局部，以免發(fā)熱焊接時(shí)，應(yīng)先通冷卻水，然后接通電源開關(guān)。電極的質(zhì)量直接影響焊接進(jìn)程、焊接質(zhì)量和消費(fèi)率。電極資料常用紫銅、鎘青銅、鉻青銅等制成;電極的外形多種多樣，次要依據(jù)焊件外形確定。裝置電極時(shí)，要留意上、下電極外表堅(jiān)持平行;電極立體要堅(jiān)持清潔，常用砂布或銼刀修整。焊接循環(huán)點(diǎn)焊和凸焊的焊接循環(huán)由四個(gè)根本階段(點(diǎn)焊進(jìn)程)。預(yù)壓階段——電極下降到電流接通階段，確保電極壓緊工件，使工件間有適當(dāng)壓力。焊接工夫——焊接電流經(jīng)過工件，產(chǎn)熱構(gòu)成熔核。維持工夫——切斷焊接電流，電極壓力持續(xù)維持至熔核凝結(jié)到足夠強(qiáng)度。休止工夫——電極開端提起到電極再次開端下降，開端下一個(gè)焊接循環(huán)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/312320.html</p></div></div></div></div></div><div id="d8ak7sk" class="page-right twoColRt"><div id="uebprya" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="kzbdkr7" class="recomPic likePro"><a 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