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<meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u 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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(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="f8g93gc" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="vkcel9g" class="box"><p><p>扁鋼廠為您講解-縱剪扁鋼的馬氏體轉(zhuǎn)變<p>縱剪扁鋼在進(jìn)行工作的時候，為了讓縱剪扁鋼更好的為使用單位服務(wù)，我廠一般會將其馬氏體轉(zhuǎn)變來進(jìn)行強化，主要原因是過飽和碳原子引起的晶格畸變，即固溶強化，這樣的操作有什么作用呢？<p>①無擴散性——馬氏體轉(zhuǎn)變是非擴散性轉(zhuǎn)變，因而轉(zhuǎn)變過程中沒有成分變化，扁鋼的含碳量和原來的相同；<p>②變溫形成——只有在不斷降低溫度的條件下，轉(zhuǎn)變才能繼續(xù)進(jìn)行；<p>③切變共格和表面浮凸現(xiàn)象——由于原子不能進(jìn)行擴散，因而晶格轉(zhuǎn)變只能以切變的機制進(jìn)行；<p>④高速長大——馬氏體生長速度極快，片間相撞容易在馬氏體片內(nèi)產(chǎn)生顯微裂紋，昆明鍍鋅扁鋼哪家好。<p>縱剪扁鋼的馬氏體轉(zhuǎn)變還告訴我們，它的工作溫度與冷卻速度無關(guān)，主要取決于含碳量與合金元素的含量，昆明鍍鋅扁鋼哪家好，轉(zhuǎn)變類型主要取決于轉(zhuǎn)變溫度，但轉(zhuǎn)變量和速度又與時間密切相關(guān)，昆明鍍鋅扁鋼哪家好。<p><br/>越南鍍鋅扁鋼，云南貿(mào)軒商貿(mào)有限公司。昆明鍍鋅扁鋼哪家好<div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明鍍鋅扁鋼哪家好,鍍鋅扁鋼" src="http://tyunfile.71360.com/UploadFile/ynmaoxuan/637203297972509766/3573398.jpg"></div><p> 7)酸槽加溫時，先將蒸汽管固定牢固后再打開蒸汽閥門。 </p> <p> 8)天車吊管進(jìn)、出酸槽時，不得撞擊槽壁，防止損壞酸槽。 </p> <p> 9)鋼管的欠酸洗的主要原因： </p> <p> (1)鋼管在進(jìn)料時要嚴(yán)格檢查，要做到不合格鋼管不投入酸洗。。 </p> <p> (2)鋼管在振動時不認(rèn)真操作。 </p> <p> (3)酸洗時間及鹽酸含量不足。 </p> <p> 10)鋼管過酸洗的主要原因： </p> <p> (1)鹽酸含量過高。 </p> <p> (2)酸洗時間過長。 </p> <p> 11)酸洗后檢查鋼管外表面是否光滑、有無殘留氧化鐵皮、有無油垢污染鋼管表面。昆明鍍鋅扁鋼哪家好扁鋼的重量怎么計算??？每米質(zhì)量=0.00785*厚度*邊寬。</p> <span style="display:none;"></span><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明鍍鋅扁鋼哪家好,鍍鋅扁鋼" src="http://tyunfile.71360.com/UpLoadFile/2019/4/23/2/636915851423280397_ynmaoxuan_2692758.jpg"></div><p style="text-indent:25px">鍍鋅扁鋼，這里主要指熱吹鍍扁鋼。先將普通扁鋼進(jìn)行酸洗除銹除油后，酸洗后，通過氯化銨或氯化鋅水溶液或氯化銨和氯化鋅混合水溶液槽中進(jìn)行清洗，然后浸入460℃左右融化的鋅液中，使普通扁鋼表面附著30-50um鋅層，從而達(dá)到防腐的目的。云南貿(mào)軒商貿(mào)有限公司經(jīng)銷昆鋼，柳鋼，鞍鋼，重鋼，攀鋼，萊鋼，匯鋼，玉昆，仙福，方圓等各大鋼廠鋼材，年銷售量達(dá)8萬噸以上。公司有大量的鍍鋅型材現(xiàn)貨庫存。鍍鋅型材庫存型號涵蓋了市場常用型號規(guī)格，客戶多種需求；熱鍍鋅扁鋼批發(fā)價銷售，下游用戶利益。</p><p> 熱軋扁鋼的使用壽命是多少？ </p> <p> 經(jīng)驗表明，大氣的腐蝕程度因地區(qū)而異，國家基本上是無污染地區(qū)。在這樣一個環(huán)境下熱軋扁鋼的使用，壽命一般在20-30年。 </p> <p> 所以為了延長熱軋扁鋼的壽命，良好的貯存環(huán)境。 </p> <p> 熱軋扁鋼的存儲要求 </p> <p> 1，熱軋扁鋼儲存注意防潮，防腐蝕酸等。 </p> <p> 2，存儲空間或倉儲方，應(yīng)選擇在清潔干凈，無障礙的排水區(qū)域，遠(yuǎn)離有害氣體或粉塵的工廠和礦山。 </p> <p> 3，在清理雜草和所有碎片網(wǎng)站，清潔維護(hù)方。 </p> <p> 4，倉庫不得有腐蝕性的材料堆放在一起與酸，堿，鹽，水泥等鋼的另一邊。 </p> <p> 5，不同品種的鋼材應(yīng)分別堆放，避免混淆，防止接觸腐蝕。 </p> <p> 6，應(yīng)根據(jù)地理條件選擇，一般封閉的倉庫一般使用，即屋頂墻壁，門窗嚴(yán)密，設(shè)有通風(fēng)裝置庫。倉儲要求晴天注意通風(fēng)，雨天注意去除水分，經(jīng)常保持適宜的儲存環(huán)境。通過調(diào)整氣壓大小調(diào)整涂層的厚度，決不能有多余液珠附在鋅管表面上。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明鍍鋅扁鋼哪家好,鍍鋅扁鋼" src="http://tyunfile.71360.com/UploadFile/ynmaoxuan/637203297975712891/797309.jpg"></div><p> 烘干： </p> <p> 1、溶劑處理合格后的鋼管放在烘干受料臺架上，將鋼管齊頭一側(cè)放在鋅鍋前側(cè)和第二個磁力輥前側(cè)成直角擺平;彎度較大的管放在后面或者矯直后放在受料架上。 </p> <p> 2、烘干炕主要作用是把鋼管表面的水份烘干，另一方面是提升鋼管本身的溫度，防止濺鋅傷人，也不帶走鋅鍋內(nèi)的熱能，促使鋅鐵合金層的加快生成。 </p> <p> 3、烘干炕溫度為80℃～180℃，鋼管的干燥時間為3～7分鐘，也可根據(jù)鋼管的規(guī)格、壁厚不同掌握烘干溫度;干燥工要隨時檢查鋼管的干燥程度，防止時間不足進(jìn)入鋅液中濺鋅傷人;烘干時不要超溫，防止把溶劑烘焦。鍍鋅扁鋼板的生產(chǎn)工序主要包括：原板準(zhǔn)備→鍍前處理→熱浸鍍→鍍后處理→成品檢。昆明鍍鋅扁鋼哪家好</p><p style="text-indent:25px">熱鍍鋅扁鋼種類及規(guī)格？昆明鍍鋅扁鋼哪家好</p><p> q235扁鋼的退火處理是什么 </p> <p> q235扁鋼的退火既為了消除和改善前道工序遺留的組織缺點和殘余應(yīng)力，防止工件變形、開裂;軟化鋼材以便進(jìn)行切削加工，細(xì)化晶粒，改善組織以提高工件的機械性能;又為后續(xù)工序作好預(yù)備。所以退火是屬于半成品熱處理，又叫做預(yù)先熱處理。正火是將鋼加熱到臨界溫度以上，使鋼全部轉(zhuǎn)變?yōu)槠骄膴W氏體，然后在空氣中天然冷卻的熱處理方法。云南貿(mào)軒商貿(mào)有限公司經(jīng)銷昆鋼，柳鋼，鞍鋼，重鋼，攀鋼，萊鋼，匯鋼，玉昆，仙福，方圓等各大鋼廠鋼材，年銷售量達(dá)8萬噸以上，包含各種材質(zhì)、型號的剛才。昆明鍍鋅扁鋼哪家好</p><p style="text-indent:25px">云南貿(mào)軒商貿(mào)有限公司是一家公司主要經(jīng)營各種規(guī)格：H型鋼、工字鋼、槽鋼、鋼板、方管、螺旋管、鍍鋅管、無縫管、圓鋼、C型鋼、彩瓦、鋼軌、角鋼、螺紋鋼、線材等系列產(chǎn)品的鋼材。常年經(jīng)銷昆鋼、柳鋼、鞍鋼、重鋼、攀鋼、萊鋼、匯鋼、玉昆、仙福、方圓等各大鋼廠鋼材。的公司，是一家集研發(fā)、設(shè)計、生產(chǎn)和銷售為一體的專業(yè)化公司。貿(mào)軒鋼材作為公司主要經(jīng)營各種規(guī)格：H型鋼、工字鋼、槽鋼、鋼板、方管、螺旋管、鍍鋅管、無縫管、圓鋼、C型鋼、彩瓦、鋼軌、角鋼、螺紋鋼、線材等系列產(chǎn)品的鋼材。常年經(jīng)銷昆鋼、柳鋼、鞍鋼、重鋼、攀鋼、萊鋼、匯鋼、玉昆、仙福、方圓等各大鋼廠鋼材。的企業(yè)之一，為客戶提供良好的鍍鋅管，工字鋼，槽鋼，角鋼。貿(mào)軒鋼材繼續(xù)堅定不移地走高質(zhì)量發(fā)展道路，既要實現(xiàn)基本面穩(wěn)定增長，又要聚焦關(guān)鍵領(lǐng)域，實現(xiàn)轉(zhuǎn)型再突破。貿(mào)軒鋼材創(chuàng)始人謝春貴，始終關(guān)注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1536475.html</p></div></div></div></div></div><div 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