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id="5kg7jny" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會</a></div><div id="s8hbvht" class="clearfix searchWrap"><div id="x42inzq" class="searchInput"><input type="text" name="keywords" placeholder="請輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="sie4cne" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = "index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="22g8xmd" class="twoCol"><div id="vblp4xo" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_yiqiyibiao/">儀器儀表</a>?<a href="http://www.cdcfah.com/cp/second-yiqiyibiao_shiyanji/">試驗機</a>?<a href="http://www.cdcfah.com/cp/third-shiyanji_yingduji/">硬度計</a>?洛氏硬度計真誠推薦上海尚材試驗機供應(yīng)</p><div id="atzi4ag" class="leftbox clearfix"><h1>洛氏硬度計真誠推薦上海尚材試驗機供應(yīng)</h1><div id="xv2b7bn" class="proBig"><div id="24bfnoa" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776424902343/7910524.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="guqcvgm" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776424902343/7910524.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="gykgkab" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>洛氏硬度計</p><p><span>***更新：</span>2020-05-28 05:17:25</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="fq833nz" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海尚材試驗機有限公司</a></p><p><span>聯(lián)系人：</span>衛(wèi)志清</p><p><span>郵箱: </span>shangcaisy@163.com</p><p><span>電話: </span>17765160728</p><p><span>傳真: </span>021_57520236</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>021-50393010</p><p><span>地址: </span>奉城鎮(zhèn)奉旺路373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="or2cw7h" class="page-proshow02"><p class="title">詳細說明</p><div id="sf3t7j3" class="box"><p><p> 操作使用時注意事項——正確使用設(shè)備，保護人員安全 </p> <p> 1. 實驗室環(huán)境需具備三防（防震、防潮，洛氏硬度計、防塵）。 </p> <p> 2. 放置儀器平臺，做到平整、穩(wěn)固和無晃動。 </p> <p> 3. 測試試樣要求表面上下平整、無油膩和保持干燥。對于用金剛石圓錐壓頭進行的試驗，試樣的厚度不小于殘余壓痕深度的10倍，對于用球壓頭進行的試驗，試樣的厚度不小于殘余壓痕深度的15倍，測試后試樣背面不得有可見的變形痕跡。 </p> <p> 4. 操作設(shè)備時必須嚴格按標準作業(yè)的規(guī)定和步驟進行作業(yè)。不經(jīng)常使用的硬度計，開機后要進行多次的硬度測定，穩(wěn)定后，再進行試件的硬度測試。 </p> <p> 5. 硬度計搬運時應(yīng)托底，不準橫倒。搬運前應(yīng)先拔去電源插頭，固定傳感器接長桿和主負荷杠桿，并取下砝碼，防止內(nèi)部結(jié)構(gòu)損壞。 </p> <p> 6. 操作時注意不準側(cè)擊壓頭，洛氏硬度計，防止損壞壓頭。 </p> <p> 7. 硬度塊的使用只能在工作面上進行，洛氏硬度計，兩相鄰壓痕中心距離不小于壓痕直徑的3倍，壓痕中心至試樣邊緣距離不小于壓痕直徑的2.5倍。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="洛氏硬度計" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776424902343/7910524.jpg"></div><p style="text-indent:25px">HRM-45DT電動表面洛氏硬度計采用自動加卸試驗力機構(gòu)，試驗力變換由變荷手輪的旋轉(zhuǎn)而獲得，可選擇保荷時間，操作簡便迅速，除表盤對零外，沒有人為的操作誤差，具有很高的靈敏度、穩(wěn)定性。應(yīng)用范圍：適用于表面淬火鋼，材料表面熱處理和化學處理層，銅、鋁合金，薄板、鍍鋅、鍍鉻、鍍錫材料，軸承鋼，冷硬鑄件等。技術(shù)參數(shù)：型號HRM-45DT初試驗力3kgf()總試驗力15kgf(),30kgf(),45kgf()壓頭規(guī)格金剛石洛氏壓頭，Φ試驗力施加方法自動（加載/保荷/卸載）硬度讀取表面洛氏表盤讀取硬度值。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="洛氏硬度計" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776514736328/7872239.jpg"></div><p> 6. 試樣 </p> <p> 6.1 為了獲得好的結(jié)果，試樣測試面和底面都應(yīng)光滑平坦，無氧化物、雜質(zhì)和潤滑劑。某些材料 </p> <p> 例外，例如會附著在壓頭上的活性金屬。在這種情況下，可以使用合適的潤滑劑，例如煤油。潤滑 </p> <p> 劑的使用應(yīng)在測試報告中作出規(guī)定。 </p> <p> 6.2 制備試樣應(yīng)選擇對測試面的表面硬度影響（例如由于熱或冷加工）**小的工藝。 </p> <p> 6.3 試樣或被測層厚度應(yīng)符合附錄A5 表中的規(guī)定和圖表中的示意。這些表是通過對碳鋼帶材的研究 </p> <p> 而得到，并且已被證實為可靠的結(jié)果。對所有的其他材料，建議厚度應(yīng)不超過壓痕深度的10 倍。一 </p> <p> 般來說，測試后試樣的背面不應(yīng)出現(xiàn)可見的變形，盡管并非所有的此類痕跡都被作為無效的測試的 </p> <p> 標志。 </p> <p> 6.3.1 當測試零件存在硬度梯度時，應(yīng)給予特殊考慮，例如經(jīng)過滲碳、碳氮共滲、滲氮和感應(yīng)等工藝 </p> <p> 進行表面淬火的零件。附錄A5 給出的**小厚度原則只適用于硬度均勻的材料，不應(yīng)在測量具有硬 </p> <p> 度梯度的零件時被用于確定合適標尺。對于具有硬度梯度的零件，合適洛氏標尺的選取應(yīng)在特殊協(xié) </p> <p> 議規(guī)定。 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="洛氏硬度計" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776393359375/4906819.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/63638.html</p></div></div></div></div></div><div id="q37ei7u" class="page-right twoColRt"><div id="fgspoov" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="s3ofwhd" class="recomPic likePro"><a href="http://www.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" 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