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href="http://www.cdcfah.com/cp/second-yjkc_gangcai/">鋼材</a>?<a href="http://www.cdcfah.com/cp/third-gangcai_guancai/">管材</a>?昆明質量方管廠家哪家好來電咨詢云南貿軒商貿供應</p><div id="mld2u2v" class="leftbox clearfix"><h1>昆明質量方管廠家哪家好來電咨詢云南貿軒商貿供應</h1><div id="ejqsuby" class="proBig"><div id="dik3wam" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/ynmaoxuan/637203842935429688/5812786.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ds3jqhz" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/ynmaoxuan/637203842935429688/5812786.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="tn3fhyk" 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)品關鍵詞：</span>昆明質量方管廠家哪家好</p><p><span>***更新：</span>2020-05-22 17:25:22</p><p><span id="click" >瀏覽次數(shù)：9次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="3gip728" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">云南貿軒商貿有限公司</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="nmeqfwy" class="page-proshow02"><p class="title">詳細說明</p><div id="e7mnkhz" class="box"><p><p> 方管主要工藝流程包括哪些方面？ </p> <p> 無縫方管，是四方四角的鋼管，由無縫鋼管冷拔擠壓成型的方型鋼管，普遍用于制造結構件和機械零件，昆明質量方管廠家哪家好，如石油鉆桿，昆明質量方管廠家哪家好、汽車傳動軸、自行車架以及建筑施工中用的鋼腳手架等，昆明質量方管廠家哪家好。 </p> <p> 衛(wèi)生級鏡面管工藝流程： </p> <p> 管坯——檢驗——剝皮——檢驗——加熱——穿孔——酸洗——修磨——潤滑風干——焊頭——冷拔——固溶處理——酸洗——酸洗鈍化——檢驗——冷軋——去油——切頭——風干——內拋光——外拋光——檢驗——標識——成品包裝 </p> <p> 2、工業(yè)管工藝流程 </p> <p> 管坯——檢驗——剝皮——檢驗——加熱——穿孔——酸洗——修磨——潤滑風干——焊頭——冷拔——固溶處理——酸洗——酸洗鈍化——檢驗 </p> <p> 3、焊管工藝流程 </p> <p> 開卷——平整——端部剪切及焊接——活套——成形——焊接——內外焊珠去除——預校正——感應熱處理——定徑及校直——渦流檢測——切斷——水壓檢查——酸洗——**終檢查——包裝 </p> <p> 4、無縫方管工藝流程 </p> <p> 圓鋼——管坯——檢驗——加熱——穿孔——定徑——熱軋——平頭——檢驗——酸洗——球型退火——冷拔——成型——齊口——檢驗 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明質量方管廠家哪家好" src="http://tyunfile.71360.com/UploadFile/ynmaoxuan/637203842935429688/5812786.jpg"></div><p> 方管保管方法： </p> <p> <br /> </p> <p> 合理堆碼、先進先放 </p> <p> (1)堆碼的原則要求是在碼垛穩(wěn)固、確保安全的條件下，做到按品種、規(guī)格碼垛，不同品種的材料要分別碼垛，防止混淆和相互腐蝕； </p> <p> (2)禁止在垛位附近存放對鋼管有腐蝕作用的物品； </p> <p> (3)垛底應墊高、堅固、平整，防止材料受潮或變形； </p> <p> (4)同種材料按入庫先后分別堆碼，便于執(zhí)行先進先發(fā)的原則； </p> <p> (5)露天堆放的型鋼，下面必須有木墊或條石，垛面略有傾斜，以利排水，并注意材料安放平直，防止造成彎曲變形； </p> <p> (6)堆垛高度，人工作業(yè)的不超過1.2m，機械作業(yè)的不超過1.5m，垛寬不超過2.5m； </p> <p> (7)垛與垛之間應留有一定的通道，檢查道一般為O．5m，出入通道視材料大小和運輸機械而定，一般為1.5～2．Om； </p> <p> (8)垛底墊高，若倉庫為朝陽的水泥地面，墊高O．1m即可；若為泥地，須墊高O．2～0.5m。若為露天場地，水泥地面墊高O·3～O·5m，沙泥面墊高0.5～O．7m9)露天堆放角鋼和槽鋼應俯放，即口朝下，工字鋼應立放，鋼管的I槽面不能朝上，以免積水生銹 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明質量方管廠家哪家好" src="http://tyunfile.71360.com/UploadFile/ynmaoxuan/637203842937216797/9940397.jpg"></div><p> 方鋼和方管不是同一個概念。 </p> <p> 一、方鋼 </p> <p> 方鋼指的是用方坯熱軋出來的一種方形材料，或者由圓鋼經(jīng)過冷拔工藝，**的方形材料。方鋼理論重量計算公式：邊長Х邊長Х0.00785=kg/m。 </p> <p> 二、方管 </p> <p> 方管是種方形體的管型，很多種材質的物質都可以形成方管體，大多數(shù)方管以鋼管為多數(shù)，經(jīng)過拆包，平整，卷曲，焊接形成圓管，再由圓管軋制成方形管然后剪切成需要的長度。一般是50根每包。方管在現(xiàn)貨方面以大規(guī)格居多，在10*10*0.8-1.5到500*500*10-25的范圍之間，方管按用途分為結構方管，裝飾方管，建筑方管，機械方管等。 </p> <p> 方管，是方形管材的一種稱呼，也就是邊長相等的的鋼管。是帶鋼經(jīng)過工藝處理卷制而成。 <p> 三、方管與方鋼的區(qū)別 </p> <p> 方鋼，實心，屬于棒材。一般是熱軋加工而成，深加工可做成圓鋼，地腳螺栓等。用來做軌道。方管，空心，屬于管材。一般有圓倒角，質量要比方鋼輕多了。小直徑一般是冷軋，大直徑一般焊接拼成。用來做結構。 </p> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; 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