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src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238611794599609/522082.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="k000g0g" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238611794599609/522082.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="mmcsies" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>重慶高溫升液管零售</p><p><span>***更新：</span>2020-06-02 20:03:28</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="ua0ygus" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">鄒平縣奧翔硅碳制品有限公司</a></p><p><span>聯(lián)系人：</span>張洪恩</p><p><span>郵箱: </span>13884861614@163.com</p><p><span>電話: </span>13884861614</p><p><span>傳真: </span>0543_4534117</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0543-4533667</p><p><span>地址: </span>山東省鄒平市臨池鎮(zhèn)望京村</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="kiomcsi" class="page-proshow02"><p class="title">詳細說明</p><div id="weu0iyw" class="box"><p><p> 隨著國內(nèi)高鐵市場的快速發(fā)展，高鐵齒輪箱作為動車組傳動系統(tǒng)的部件之一，齒輪箱鑄件的化學(xué)元素要求之高近乎苛刻，低壓鑄造齒輪箱鑄件通常采用鐵質(zhì)升液管，特定的鑄造工藝決定了升液管必須在鋁液中長時間浸泡，在生產(chǎn)制造過程中，F(xiàn)e（鐵）元素與Al（鋁）元素極易發(fā)生反應(yīng)，鐵質(zhì)升液管很容易被腐蝕，污染鋁液，時而伴隨著齒輪箱鑄件的化學(xué)元素Fe超標，另外，在使用過程中，若鐵質(zhì)升液管發(fā)生局部被腐蝕導(dǎo)致漏氣，現(xiàn)場很難發(fā)現(xiàn)，澆注時極易造成批量質(zhì)量問題。Fe元素在鋁合金中是一種雜質(zhì)元素，重慶高溫升液管零售，重慶高溫升液管零售，這種雜質(zhì)相主要以一種板條狀或針狀形成的AlFeSi相存在于合金基體中，嚴重割裂基體，對齒輪箱鑄件的疲勞性能、沖擊韌性、延伸率等性能指標產(chǎn)生極大的影響，齒輪箱鑄件Fe含量要求≤，然而，重慶高溫升液管零售，在實際生產(chǎn)過程中增Fe不可避免，受制于原材料成本的原因，原材料Fe含量一般在，本身增Fe空間就極其狹窄，一旦控制不當，極易發(fā)生Fe元素超標。傳統(tǒng)的齒輪箱鑄造過程中會在升液管壁涂覆一種涂料，但*通過涂料方式阻止增Fe效果不夠理想，因為在低壓鑄造生產(chǎn)過程中，每生產(chǎn)一件毛坯均需周期性增壓與泄壓一次，周期性的沖刷，涂料很難維持，因此**采用傳統(tǒng)的涂料保護方法無法阻礙鋁液增Fe。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶高溫升液管零售" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238611794599609/522082.jpg"></div><p> 在車輪生產(chǎn)中的作用舉足輕重。依據(jù)生產(chǎn)經(jīng)驗，一個質(zhì)量的升液管應(yīng)該具備以下特點:良好的保溫性，比較大限度的減少鋁液在進入型腔前的熱量損失，以防止發(fā)生鋁液凍死；具備較強的鋁液過濾能力，不可以將保溫爐內(nèi)的氧化膜等雜質(zhì)帶入模具型腔，形成鑄件夾渣廢品；具有良好的耐腐蝕性、耐高溫性，保證升液管有較長的使用壽命；價格經(jīng)濟，節(jié)約生產(chǎn)成本。然而，現(xiàn)有技術(shù)中的升液管很難兼具上述幾種特質(zhì)，也因此會造成生產(chǎn)中工藝控制困難，鑄件夾渣缺點頻發(fā)，產(chǎn)品外觀不達標導(dǎo)致客戶抱怨等等問題，這些問題都嚴重的制約著車輪的成品率，并明顯提高了企業(yè)的制造成本。本實用新型的目的是提供一種有良好保溫性、很強鋁液撇渣過濾能力、較高耐蝕性、較長的使用壽命以及優(yōu)良的經(jīng)濟性的車輪低壓鑄造用升液管。[0004]本實用新型的技術(shù)方案是:升液管，包括升液管本體、連接螺栓、定位圓銷、密封墊、過濾片。升液管本體包括升液管本體a、升液管本體b，二者通過連接螺栓緊固。升液管本體a設(shè)置法蘭，借助螺栓將本實用新型連接在機臺底板上。升液管本體a在上端，不浸入鋁液，選用普通的鐵質(zhì)材料制作。下端的升液管本體b始終與高溫鋁液接觸，工作狀況相對惡劣。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶高溫升液管零售" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238611793261719/1330015.jpg"></div><p> 低壓鑄造的原理是在一密封的容器中，通入干燥的壓縮空氣或惰性氣體，使容器內(nèi)的金屬液在氣體壓力下，自下而上地通過陶瓷升液管和澆注系統(tǒng)，平穩(wěn)地進入鑄型中去，保持容器內(nèi)氣體壓力至鑄件完全凝固為止，然后解除液面上的壓力，使陶瓷升液管和澆道中沒有凝固的金屬液由于重力而回到容器中，這樣在上面的鑄型中就形成所需要的鑄件。由此可見，其凝固順序是由上而下的，所以在鑄型設(shè)計時，都需人為地造成遠離澆口的部分首先凝固，因為低壓鑄造對“順序凝固”的要求是非常突出的。熱電偶保護管主要起到保護作用，而接下來，我們就要一起認識一下它的具體用途。一起前來認識看看吧。熱電偶保護管主要有兩種用途：一是防止遭受機械損壞；二是保護熱電偶免受被測介質(zhì)化學(xué)腐蝕、不受氧化氣氛或還原氣氛的有害影響，使熱電偶盡可能處于接近其比較好氣氛中。因此熱電偶必須加以保護，使之不受不良氣氛的侵害。低壓鑄造的原理是在一密封的容器中，通入干燥的壓縮空氣或惰性氣體，使容器內(nèi)的金屬液在氣體壓力下，自下而上地通過陶瓷升液管和澆注系統(tǒng)，平穩(wěn)地進入鑄型中去，保持容器內(nèi)氣體壓力至鑄件完全凝固為止，然后解除液面上的壓力。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶高溫升液管零售" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998404504441736_zbwuzi_2531527.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/122098.html</p></div></div></div></div></div><div id="u80msye" class="page-right twoColRt"><div id="o2cygca" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div 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