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href="http://www.cdcfah.com/cp/third-dzyqj_ylbsq/">壓力變送器</a>?全國(guó)豪華螺桿泵深圳市群勛科技供應(yīng)</p><div id="adzvbc8" class="leftbox clearfix"><h1>全國(guó)豪華螺桿泵深圳市群勛科技供應(yīng)</h1><div id="h7rekgh" class="proBig"><div id="pyzlw3p" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/qunxun/637211876900322265/6521222.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="atkgm3j" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/qunxun/637211876900322265/6521222.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="wfghx8s" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>全國(guó)豪華螺桿泵,螺桿泵</p><p><span>***更新：</span>2020-10-19 04:08:04</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="jrso3tu" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市群勛科技有限公司</a></p><p><span>聯(lián)系人：</span>張華</p><p><span>郵箱: </span>zh@qxunad.com</p><p><span>電話: </span>18603057926</p><p><span>傳真: </span>0755_23156458</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0755-33075040</p><p><span>地址: </span>光明新區(qū)公明街道民生路70號(hào)銘源商務(wù)大廈808室</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="bj2hlrs" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="phijfgc" class="box"><p><p> 應(yīng)力腐蝕是指拉應(yīng)力和腐蝕環(huán)境的聯(lián)合作用而引起的金屬腐蝕破裂，應(yīng)力和腐蝕是相互促進(jìn)的。一方面腐蝕使金屬有效截面積減小和表面形成缺口產(chǎn)生應(yīng)力集中，另一方面應(yīng)力的增大使材料產(chǎn)生大的變形又加速了腐蝕的進(jìn)展，使表面缺口向深處擴(kuò)展，往往在沒(méi)有任何預(yù)兆的情況下導(dǎo)致設(shè)備的破壞，因此應(yīng)力腐蝕破裂也是一種很危險(xiǎn)的腐蝕損壞，全國(guó)豪華螺桿泵。 </p> <p> <br /> </p> <p> 腐蝕疲勞又稱疲勞腐蝕，是指金屬材料或結(jié)構(gòu)在交變載荷和腐蝕介質(zhì)共同作用下引起的疲勞強(qiáng)度或疲勞壽命降低的現(xiàn)象。材料在長(zhǎng)時(shí)間的交變載荷作用下，應(yīng)力值達(dá)到或超過(guò)材私的疲勞極限時(shí)就會(huì)使金屬表面產(chǎn)生微小裂紋，腐蝕介質(zhì)進(jìn)人微裂紋加速了裂紋向深處擴(kuò)展:***可能造成金屬構(gòu)件突然斷裂，從宏觀上看，全國(guó)豪華螺桿泵，斷口有兩個(gè)明顯不同的區(qū)域：一是腐蝕疲勞裂紋的產(chǎn)生和擴(kuò)展區(qū)，二是截面嶄新的***斷裂區(qū)，全國(guó)豪華螺桿泵。在石油化工生產(chǎn)行業(yè)的設(shè)備當(dāng)中，螺桿泵轱等均有可能發(fā)生腐蝕疲勞。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 單螺桿泵正是基于這種結(jié)構(gòu)研發(fā)的新型泵種。全國(guó)豪華螺桿泵</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="全國(guó)豪華螺桿泵,螺桿泵" src="http://tyunfile.71360.com/UploadFile/qunxun/637211876900322265/6521222.jpg"></div><p> 單螺桿泵的嚙合副型線，近十多年來(lái)國(guó)外有些廠商開(kāi)發(fā)雙頭螺旋的轉(zhuǎn)子和三頭內(nèi)嚙合螺旋的定子相嚙合的單螺桿泵進(jìn)展很快，個(gè)別的廠商已發(fā)展到大批量生產(chǎn)和銷(xiāo)售。我國(guó)也有少數(shù)制造廠進(jìn)行研制，目前尚處在開(kāi)發(fā)階段。 </p> <p> 雙頭螺旋轉(zhuǎn)子和三頭內(nèi)螺旋定子構(gòu)成的單螺桿泵與單頭螺旋轉(zhuǎn)子和雙頭內(nèi)螺旋定子構(gòu)成的單螺桿泵相比較，有著如下的優(yōu)點(diǎn)： </p> <p> 1）在相同轉(zhuǎn)速和相同橫向尺寸的螺旋段情況下，有著較大的流量，或在相同激量時(shí)導(dǎo)程T的尺寸較小。 </p> <p> 2）由于轉(zhuǎn)子每轉(zhuǎn)一周，密封腔數(shù)為2×3 =6,而單頭螺旋轉(zhuǎn)子和雙頭內(nèi)螺旋定子的泵，密封腔數(shù)為1×2 =2,因此其流量脈動(dòng)和壓力脈動(dòng)較小。 </p> <p> 3 ）轉(zhuǎn)子的偏心距較小，因此噪聲和振動(dòng)也隨之降低，并允許采用較高的轉(zhuǎn) 速，或在相同的轉(zhuǎn)速和相同流量時(shí)，吸上性能更好。 </p> <p> 4）容積效率和機(jī)械效率也更高。 </p> <p> 5)起動(dòng)力距較小。 </p> <p> 6)壽命更長(zhǎng)。 </p> <p> <br /> 豪華螺桿泵市場(chǎng)前景螺桿泵可以用于高粘度流體的輸送和含有硬質(zhì)懸浮顆粒介質(zhì)或含有纖維介質(zhì)的輸送。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="全國(guó)豪華螺桿泵,螺桿泵" src="http://tyunfile.71360.com/UploadFile/qunxun/637211876900878906/8418485.jpg"></div><p> G型單螺桿泵如何選擇適合型號(hào)? </p> <p> 螺桿泵型號(hào)的選型首先得確定螺桿泵所輸送的液體介質(zhì)具體是什么，里面所含有哪些化學(xué)成分以便確定選擇合適橡膠套滿足工況，列入家具行業(yè)輸送油漆，客戶只提供輸送油漆，得了解清楚油漆里面是否含有甲苯，如含有甲苯得選用氟橡膠材質(zhì)的橡膠套才能滿足工況，不然選擇普通的丁晴橡膠套很容易壞掉，用戶不了解的情況下誤認(rèn)為是廠家質(zhì)量的問(wèn)題所致，還有介質(zhì)的粘度及比重，如粘度大或者介質(zhì)含固量大的物料，要在普通轉(zhuǎn)速的基礎(chǔ)上降低螺桿泵的轉(zhuǎn)速，轉(zhuǎn)速低磨損就會(huì)降低，所以螺桿泵型號(hào)的選型及為重要。1級(jí)螺桿泵：比較高工作壓力為0.6 MPa； </p> <p> 2級(jí)螺桿泵：比較高工作壓力為1.2 MPa； </p> <p> 3級(jí)螺桿泵：比較高工作壓力為1.8Mpa； </p> <p> 4級(jí)螺桿泵：比較高工作壓力為2.4 MPa； </p> <p> 由于螺桿泵輸送介質(zhì)情況不同，對(duì)于含有嚴(yán)重磨損性的介質(zhì)，請(qǐng)參照表一選擇襯套級(jí)數(shù)。 </p> <p> <br /> </p><p> 一、我國(guó)螺桿泵行業(yè)發(fā)展現(xiàn)狀 </p> <p> 我國(guó)螺桿泵**早是從20世紀(jì)60年開(kāi)始引進(jìn)生產(chǎn)的，比起國(guó)外螺桿泵技術(shù)的發(fā)展晚了近20年，但是隨著螺桿泵不斷在各行業(yè)發(fā)揮不可替代的作用，我國(guó)越來(lái)越重視螺桿泵的研制開(kāi)發(fā)，國(guó)內(nèi)螺桿泵在發(fā)展方面也取得了不少的成果。中國(guó)產(chǎn)業(yè)信息網(wǎng)發(fā)布的《2013-2017年中國(guó)螺桿泵市場(chǎng)調(diào)查及前景評(píng)估研究報(bào)告》指出我國(guó)目前螺桿泵生產(chǎn)廠家約40-50家，統(tǒng)計(jì)資料顯示，2012年我國(guó)螺桿泵行業(yè)整體產(chǎn)量達(dá)到21.35萬(wàn)臺(tái)，同比2011年增長(zhǎng)約13.35%。 </p> <p> 二、我國(guó)螺桿泵競(jìng)爭(zhēng)趨勢(shì)分析 </p> <p> 從企業(yè)結(jié)構(gòu)來(lái)看，目前我國(guó)螺桿泵市場(chǎng)價(jià)格分成三個(gè)梯度： </p> <p> <br /> 單螺桿泵的安裝位置可以任意傾斜.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="全國(guó)豪華螺桿泵,螺桿泵" src="http://tyunfile.71360.com/UploadFile/qunxun/637211876900478515/127892.jpg"></div><p> 它的重要事情部件是偏愛(ài)螺旋體的螺桿（稱轉(zhuǎn)子）和內(nèi)外貌呈雙線螺旋面的螺桿襯套（稱定子）。其事情原理是當(dāng)電動(dòng)機(jī)動(dòng)員泵軸轉(zhuǎn)動(dòng)時(shí)，螺桿一方面繞自己的軸線旋轉(zhuǎn)，另一方面它又沿襯套內(nèi)外貌轉(zhuǎn)動(dòng)，于是形成泵的密封腔室。螺桿每轉(zhuǎn)一周，密封腔內(nèi)的液體向前推進(jìn)一個(gè)螺距，隨著螺桿的一連轉(zhuǎn)動(dòng)，液體螺旋形方法從一個(gè)密封腔壓向另一個(gè)密封腔，末了擠出泵體。 </p> <p> 螺桿泵液壓防反轉(zhuǎn)技能是為防備通例螺桿泵井在停機(jī)或卡泵時(shí)出現(xiàn)桿柱反轉(zhuǎn)，造成桿脫、光桿甩彎、地面設(shè)置裝備部署破壞等題目標(biāo)技能。螺桿泵井停機(jī)后常會(huì)出現(xiàn)桿柱反轉(zhuǎn)征象，桿柱內(nèi)部?jī)?chǔ)存的旋轉(zhuǎn)勢(shì)能以及油套壓差都大概導(dǎo)致桿柱反轉(zhuǎn)。卸去鋼絲卡圈或緊定螺釘。退出圓柱銷(xiāo)防落套后，取下圓銷(xiāo)。性能優(yōu)良螺桿泵市場(chǎng)前景</p><p style="text-indent:25px">在泵的吸入口和排出口之間，就會(huì)被分隔成一個(gè)或多個(gè)密封空間。全國(guó)豪華螺桿泵</p><p> 螺桿泵定子磨損的原因有哪些？螺桿泵一般都是用鋼材作轉(zhuǎn)子，橡膠做定子。而制作定子的材料一般是丁腈橡膠，原因是丁腈橡膠具有很好的耐油性。轉(zhuǎn)子因?yàn)槭褂玫氖卿摬乃员认鹉z耐磨，因此注定了螺桿泵的失效形式主要是縣膠套的磨損。也就是說(shuō)，定子的使用壽命和螺桿泵的使用壽命緊密相關(guān)，想要延長(zhǎng)定子的使用壽命就要想辦法解決橡膠的磨損問(wèn)題。濕磨粒磨損 </p> <p> 濕磨粒磨損是顆粒磨損的一種情況，還有一種名為分干磨粒磨損。二者區(qū)分如下：濕磨粒磨損就是在磨粒和橡膠之間存在液體介質(zhì)，而干磨粒磨損就是在磨粒和橡膠之間不存在液體介質(zhì)。因?yàn)槁輻U泵的工作環(huán)境，造成螺桿泵顆粒磨損的主要是濕磨粒磨損。 </p> <p> 疲勞磨損 </p> <p> 疲勞磨損是定子橡膠與轉(zhuǎn)子上圓鈍的對(duì)偶表面之間的摩擦力和接觸應(yīng)力都不太大的條件下產(chǎn)生的。這種磨損和磨粒磨損在很多方面都很相似，有的學(xué)者把疲勞磨損看作磨粒磨損的一種形式，即圓鈍磨粒磨損。但是與磨粒磨損相比，疲勞磨損是一種低強(qiáng)度的磨損。 </p> <p> <br /> 全國(guó)豪華螺桿泵</p><p style="text-indent:25px">深圳市群勛科技有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家貿(mào)易型的公司。群勛科技致力于為客戶提供良好的視覺(jué)噴點(diǎn)膠機(jī)，點(diǎn)膠閥，壓力泵，壓痕檢測(cè)機(jī)，一切以用戶需求為中心，深受廣大客戶的歡迎。公司從事機(jī)械及行業(yè)設(shè)備多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專(zhuān)業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1612295.html</p></div></div></div></div></div><div id="usciuvw" class="page-right twoColRt"><div id="mflhsyz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lu83u27" class="recomPic 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