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<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 id="qgqbi"></u><noframes id="qgqbi"></noframes><menu 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id="lpd55f7" class="proBig"><div id="rxnl3nb" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/chaokuo/637365610864472657/4690766.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3njzfjp" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/chaokuo/637365610864472657/4690766.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="rzpflr7" class="content"><p><span>需求數量：</span>0</p><p><span>價格要求：</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>產品關鍵詞：</span>深圳矩形鋼板廠商,鋼板</p><p><span>***更新：</span>2021-02-05 03:10:37</p><p><span id="click" >瀏覽次數：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="3jzpn5n" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">佛山市順德區(qū)潮闊鋼鐵貿易有限公司</a></p><p><span>聯(lián)系人：</span>江偉生</p><p><span>郵箱: </span>337410700@qq.com</p><p><span>電話: </span>13822178799</p><p><span>傳真: </span>07572_140751</p><p><span>網址: </span>http://chaokuo.shop.88360.com</p><p><span>手機: </span>07572-28974620</p><p><span>地址: </span>樂從鎮(zhèn)路州村樂從大道東B270號星光廣場B座825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="xfnlbzv" class="page-proshow02"><p class="title">詳細說明</p><div id="tb3xtxt" class="box"><p><p style="text-indent:25px">彩鋼板：表面涂油漆的鋼板,一般用熱鍍鋅板作為基板,表面的油漆主要作用是防腐和美觀,一般多用于鋼結構墻板和屋頂瓦,也有用于卷簾門的生產.另外有一種彩鋼板基板是用冷軋板或電鍍鋅板的,這種彩板表面優(yōu)于熱鍍鋅基板的彩涂。彩涂鋼板的構成和分類及應用：彩涂板的基板可以分成冷軋基板、熱鍍鋅基板、電鍍鋅基板。彩涂板的涂層種類可以分成：聚酯、硅改性聚酯、偏聚二氟乙烯、塑料溶膠。彩涂板的顏色可以按用戶的要求分成很多種類如桔黃、奶黃、深天藍、海藍、緋紅、磚紅、象牙，深圳矩形鋼板廠商，深圳矩形鋼板廠商、瓷藍等。彩涂板的表面狀態(tài)可以分成涂層板，深圳矩形鋼板廠商、壓花板、印花板。高強度鋼板是指牌號Q460鋼，強度高，特別是在正火或正火加回火狀態(tài)有較高的綜合力學性能。深圳矩形鋼板廠商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳矩形鋼板廠商,鋼板" src="https://tyunfile.71360.com/UploadFile/chaokuo/637365610864472657/4690766.png"></div><p style="text-indent:25px">冷軋鋼板：冷軋(zhá)是以熱軋板卷為原料，在常溫下在再結晶溫度以下進行軋制而成，冷軋鋼板就是經過冷軋工序生產的鋼板，簡稱冷板。冷軋板的厚度一般是0.1--8.0mm之間，大部份工廠生產的冷軋鋼板厚度是4.5mm以下，冷軋板的厚度、寬度是根據各工廠的設備能力和市場需求而決定。冷軋是在室溫條件下在再結晶溫度以下將鋼板進一步軋薄至為目標厚度的鋼板。和熱軋鋼板比較，冷軋鋼板厚度更加精確，而且表面光滑、漂亮。帶鋼冷連軋一般帶卷重量40 t，個別到60 t，提高30~50%。提高生產率的主要措施，增加帶卷重量，提高軋制速度和作業(yè)率等。深圳薄鋼板供應20號鋼板適用于制造汽車、拖拉機及一般機械制造業(yè)中建造不太重要的中小型滲碳碳氮共滲等零件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳矩形鋼板廠商,鋼板" src="https://tyunfile.71360.com/UploadFile/chaokuo/637365610748125000/621883.png"></div><p style="text-indent:25px">合金鋼板的性能：隨著科學技術和工業(yè)的發(fā)展，對材料提出了更高的要求，如更高的強度，抗高溫、高壓、低溫，耐腐蝕、磨損以及其它特殊物理、化學性能的要求，碳鋼已不能完全滿足要求。碳鋼的不足：(1)淬透性低。一般情況下，碳鋼水淬的較大淬透直徑只有10mm-20mm。(2) 強度和屈強比較低。如普通碳鋼Q235鋼的σs為235MPa，而低合金結構鋼16Mn的σs則為360MPa以上。40鋼的 σs /σb*為0.43, 遠低于合金鋼。(3) 回火穩(wěn)定性差。由于回火穩(wěn)定性差，碳鋼在進行調質處理時，為了保證較高的強度需采用較低的回火溫度，這樣鋼的韌性就偏低；為了保證較好的韌性，采用高的回火溫度時強度又偏低，所以碳鋼的綜合機械性能水平不高。(4) 不能滿足特殊性能的要求。碳鋼在抗氧化、耐蝕、耐熱、耐低溫、耐磨損以及特殊電磁性等方面往往較差，不能滿足特殊使用性能的需求。</p><p style="text-indent:25px">合金元素與鐵、碳的相互作用，合金元素加入鋼板中后，主要以三種形式存在鋼中。即：與鐵形成固溶體；與碳形成碳化物；在高合金鋼中還可能形成金屬間化合物。溶于鐵中，幾乎所有的合金元素（除Pb外）都可溶入鐵中, 形成合金鐵素體或合金奧氏體, 按其對α-Fe或γ-Fe的作用, 可將合金元素分為擴大奧氏體相區(qū)和縮小奧氏體相區(qū)兩大類。擴大γ相區(qū)的元素—亦稱奧氏體穩(wěn)定化元素, 主要是Mn、Ni、Co、C、N、Cu等, 它們使A3點(γ-Fe α-Fe的轉變點)下降, A4點( γ-Fe的轉變點)上升, 從而擴大γ-相的存在范圍。其中Ni、Mn等加入到一定量后, 可使γ相區(qū)擴大到室溫以下, 使α相區(qū)消失, 稱為完全擴大γ相區(qū)元素。另外一些元素(如C、N、Cu等), 雖然擴大γ相區(qū), 但不能擴大到室溫, 故稱之為部分擴大γ相區(qū)的元素。20號鋼的抗拉強度和沖擊韌性是要稍高一些的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳矩形鋼板廠商,鋼板" src="https://tyunfile.71360.com/UploadFile/chaokuo/637365610970937500/1921111.png"></div><p style="text-indent:25px">鍍錫薄鋼板的用處是：鍍錫薄鋼板簡稱鍍錫板，俗稱馬口鐵，是兩面鍍有純錫(1號、2號錫錠）的低碳薄鋼板。鍍錫板對空氣、水、水蒸氣等有很好的耐蝕性，且無毒，具有易變形性和可焊性，表面光亮、美觀，罐頭空罐就是用鍍錫板制作的。鍍錫板雖有較高的耐蝕性，但若長期存放，錫也會緩慢氧化而變黃，在潮濕空氣或工業(yè)性氣氛中也會生銹而失去光澤。因此，鍍錫薄鋼板需庫內存放，存放期一般不要超過6-12個月。鍍錫板的結構：鍍錫板是由鋼基、錫鐵合金、錫層、氧化膜和油膜五層構成。耐熱鋼板的性能指的是當它在高溫的情況下，所表現出得力學性能、耐腐蝕性能。深圳矩形鋼板廠商</p><p style="text-indent:25px">冷軋是在室溫條件下在再結晶溫度以下將鋼板進一步軋薄至為目標厚度的鋼板。深圳矩形鋼板廠商</p><p style="text-indent:25px">**鋼板用其用途的漢語拼音字首來標明。如:滾珠軸承鋼,在鋼號前標以“G”。GCr15表示含碳量約1.0%、鉻含量約1.5%(這是一個特例, 鉻含量以千分之一為單位的數字表示)的滾珠軸承鋼。Y40Mn,表示碳含量為0.4%、錳含量少于1.5%的易切削鋼等等。對于比較優(yōu)良的鋼，則在鋼的末尾加“A”字表明，例如20Cr2Ni4A。在鋼中加入合金元素后，鋼的基本組元鐵和碳與加入的合金元素會發(fā)生交互作用。鋼的合金化目的是希望利用合金元素與鐵、碳的相互作用和對鐵碳相圖及對鋼的熱處理的影響來改善鋼的組織和性能。深圳矩形鋼板廠商</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3166460.html</p></div></div></div></div></div><div id="bjxthn3" class="page-right twoColRt"><div id="n3tjz3f" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="p3jzdrp" class="recomPic likePro"><a 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