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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="lvmlnzw" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/ynmaoxuan/637203121509335937/2071263.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="l8qpmjl" 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>云南省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>昆明質(zhì)量鍍鋅方管批發(fā),鍍鋅方管</p><p><span>***更新：</span>2020-07-05 01:16:05</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="jln9ikr" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">云南貿(mào)軒商貿(mào)有限公司</a></p><p><span>聯(lián)系人：</span>謝經(jīng)理</p><p><span>郵箱: </span>1339843057@qq.com</p><p><span>電話: </span>13888426708</p><p><span>傳真: </span>138_</p><p><span>網(wǎng)址: </span>http://www.maoxuan666.com</p><p><span>手機: </span>138-88426708</p><p><span>地址: </span>云南省昆明經(jīng)開區(qū)宏錫路4-1-2號鐵公雞物流園二號寫字樓408號</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="mwod3am" class="page-proshow02"><p class="title">詳細說明</p><div id="xhodv33" class="box"><p><p> 熱鍍鋅方管和冷鍍鋅方管的不同之處（2） </p> <p> 而冷鍍鋅方管是在所用的方管上利用冷鍍鋅的原理來使方管具有防腐蝕的性能。與熱鍍鋅不同，冷鍍鋅涂料主要通過電化學(xué)原理來進行防腐，因此必須保證鋅粉與鋼材的充分接觸，產(chǎn)生電極電位差，所以鋼材表面處理很重要。 </p> <p> 方管生產(chǎn)廠家有熱鍍鋅方管和電鍍鋅方管兩大類。熱鍍鋅方管有濕法、干法、鉛鋅法、氧化還原法等。不同熱鍍鋅方法的主要區(qū)別在鋼管酸浸清洗后，用什么方法活化管體表面提高鍍鋅質(zhì)量。現(xiàn)生產(chǎn)中主要采用干法和氧化還原法，其特點見表，昆明質(zhì)量鍍鋅方管批發(fā)。電鍍鋅的鋅層表面十分光滑致密，昆明質(zhì)量鍍鋅方管批發(fā)，昆明質(zhì)量鍍鋅方管批發(fā)、組織均勻；具有良好的力學(xué)性能和抗腐蝕能力;鋅耗比熱鍍鋅低60%～75%。電鍍鋅在技術(shù)上有一定的復(fù)雜性，但對單面鍍層，內(nèi)外表面鍍層厚度不同的雙面鍍層，以及薄壁管鍍鋅等皆須采用此法。昆明鍍鋅方管，云南貿(mào)軒商貿(mào)有限公司。昆明質(zhì)量鍍鋅方管批發(fā)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明質(zhì)量鍍鋅方管批發(fā),鍍鋅方管" src="http://tyunfile.71360.com/UploadFile/ynmaoxuan/637203121509335937/2071263.jpg"></div><p> 熱鍍鋅鋼管和不銹鋼管顏色上是怎么區(qū)分？ </p> <p> 熱鍍鋅鋼管和不銹鋼管通過顏色是無法區(qū)別的 </p> <p> 鍍鋅鋼管分為冷鍍鋅鋼管、熱鍍鋅鋼管，冷鍍鋅鋼管已被禁用，后者還被國家提倡暫時能使用。六七十年代，國際上發(fā)達國家開始開發(fā)新型管材，并陸續(xù)禁用鍍鋅管。 </p> <p> 鋼管類從材質(zhì)上一般分為不銹鋼管、焊接鋼管、螺旋鋼管、低合金鋼管等。而鍍鋅鋼管是焊接鋼管的一種，其實質(zhì)是在焊接鋼管內(nèi)外表面熱鍍的鍍鋅層。 </p> <p> 熱鍍鋅鋼管和不銹鋼管通過顏色是無法區(qū)別的 </p> <p> 不銹鋼鋼管是一種中空的長條圓形鋼材，主要普遍用于石油、化工、醫(yī)療、食品、輕工、機械儀表等工業(yè)輸送管道以及機械結(jié)構(gòu)部件等。昆明質(zhì)量鍍鋅方管批發(fā)越南鍍鋅方管，云南貿(mào)軒商貿(mào)有限公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明質(zhì)量鍍鋅方管批發(fā),鍍鋅方管" src="http://tyunfile.71360.com/UploadFile/ynmaoxuan/637203121507216797/9049259.jpg"></div><p> 熱鍍鋅層對鍍鋅鋼管有防腐作用。 </p> <p> 鍍鋅鋼管防腐鋅比鐵有還負的電極電位，當鋅和鐵構(gòu)成微電池時，鋅為陽極，鐵為陰極，在遭到腐蝕時，鋅溶解而鐵不受危害。鍍鋅層有小的裂紋或損壞時，鋅將以獻身陽極的形式以免繼續(xù)裂紋或損壞處的鋼鐵生銹，這是鍍鋅層比其他涂鍍層不錯的主要特點。熱鍍鋅鋼管浸鍍鋅時，鋅鐵合金層與鋼鐵基體、鋅層之間均為冶金結(jié)合，比漆類與鋼鐵的結(jié)合還結(jié)實。 </p> <p> 鍍鋅鋼管防腐鋅層對鋼鐵有屏蔽保護作用。鋅在大氣或其它環(huán)境下在鋼鐵基體外表形成屏蔽層。鋅的腐蝕過程增加了其形成屏蔽層的能力，這是因為鋅和空氣中的氧、二氧化碳、潮氣等反應(yīng)，生成一種抗腐蝕副產(chǎn)物堿式碳酸鋅膜。 </p> <p> 介于基體與純鋅層之間的鋅鐵合金層含鋅在90%，對鋼有與鋅近似的電化學(xué)保護作用;鍍層越厚，經(jīng)用年限也越長，經(jīng)用年限與厚度基本成正比。 </p><p> <span style="font-size:14px;"> 鋼材力學(xué)性能是保證鋼材**終使用性能（機械性能）的重要指標，它取決于鋼的化學(xué)成分和熱處理制度。在鋼管標準中，根據(jù)不同的使用要求，規(guī)定了拉伸性能（抗拉強度、屈服強度或屈服點、伸長率）以及硬度、韌性指標，還有用戶要求的高、低溫性能等。</span> </p> <p> <span style="font-size:14px;"> 1、鍍鋅層的均勻性：鋼管試樣在硫酸銅溶液中連續(xù)浸漬5次不得變紅（鍍銅色）。</span> </p> <p> <span style="font-size:14px;"> 2、表面質(zhì)量：鍍鋅鋼管的表面應(yīng)有完整的鍍鋅層，不得有未鍍上的黑斑和氣泡存在，允許有不大的粗糙面和局部鋅瘤存在。</span> </p> <p> <span style="font-size:14px;"> </span><span style="font-size:14px;"> 3、鍍鋅層重量：根據(jù)需方要求，鍍鋅鋼管可作鋅層重量測定，其平均值應(yīng)不小于500g/平方米，其中任何試樣不得小于480g/平方米。</span> 熱鍍鋅方管和冷鍍鋅方管的不同之處.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明質(zhì)量鍍鋅方管批發(fā),鍍鋅方管" src="http://tyunfile.71360.com/UploadFile/ynmaoxuan/637203121504628906/9208929.jpg"></div><p> 鍍鋅方管具體有哪些特點？ </p> <p> 1.防腐功能：因為它是由尋常的焊接方管,在它的表面進行熱鍍鋅或許冷鍍鋅的工藝進行處理的,不妨預(yù)防和空氣直接接觸,如此的話發(fā)生氧化的可能性就會降低很多,耐腐蝕功能就不妨升高很多. </p> <p> 2.強度特點：鍍鋅方管是始末多種工藝進行加工制作的管材,擁有其余的管材不具備的輕度,從強度上面而言,遠遠高于無縫鋼管,所以運用在建筑業(yè)和產(chǎn)業(yè)上面是對照不錯的. </p> <p> 鍍鋅板較大的特點肯定即是它的外觀,通常而言管材都是圓形,可是鍍鋅方管是方形的,運用的場面愈加的獨特,是別的管材無法替代的. 鍍鋅方管具體有哪些特點？昆明質(zhì)量鍍鋅方管批發(fā)</p><p style="text-indent:25px">鍍鋅管常用的除銹方法。昆明質(zhì)量鍍鋅方管批發(fā)</p><p> 鍍鋅方管工藝以及鍍鋅方管分類（2） </p> <p> <br /> </p> <p> 鍍鋅方管工藝分類 </p> <p> 方管按生產(chǎn)工藝分：熱軋無縫方管、冷拔無縫方管、擠壓無縫方管、焊接方管。 </p> <p> 其中焊接方管又分為： </p> <p> (a)按工藝分——電弧焊方管、電阻焊方管(高頻、低頻)、氣焊方管、爐焊方管 </p> <p> (b)按焊縫分——直縫焊方管、螺旋焊方管 </p> <p> 鍍鋅方管材質(zhì)分類 </p> <p> 方管按材質(zhì)分：普碳鋼方管、低合金方管。普碳鋼分為：Q195、Q215、Q235、SS400、20#鋼、45#鋼等；低合金鋼分為Q345、16Mn、Q390、ST52-3等。 </p> <p> 生產(chǎn)標準分類 </p> <p> 方管按生產(chǎn)標準分：國標方管，日標方管，英制方管，美標方管，歐標方管，非標方管。昆明質(zhì)量鍍鋅方管批發(fā)</p><p style="text-indent:25px">云南貿(mào)軒商貿(mào)有限公司位于云南省昆明市，創(chuàng)立于2018-01-16。貿(mào)軒鋼材致力于為客戶提供質(zhì)量的[ "鍍鋅管", "工字鋼", "槽鋼", "角鋼" ]，一切以用戶需求為中心,深受廣大客戶的歡迎。公司從事冶金礦產(chǎn)多年，有著創(chuàng)新的設(shè)計、強大的技術(shù)，還有一批**的專業(yè)化的隊伍，確保為客戶提供質(zhì)量的產(chǎn)品及服務(wù)。公司憑借深厚技術(shù)支持，年營業(yè)額度達到2000-3000萬元，并與多家行業(yè)**公司建立了緊密的合作關(guān)系。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/496750.html</p></div></div></div></div></div><div id="aewgceq" class="page-right twoColRt"><div id="zjb4s3p" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lvx4yac" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="fk7zbdf" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" 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