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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="ck432x3" class="twoCol"><div id="zx9vju9" class="page-proshow clearfix"><p class="current"> 當(dāng)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(jī)</a>?<a href="http://www.cdcfah.com/cp/third-shiyanji_yingduji/">硬度計</a>?湖南洛氏硬度計真誠推薦上海尚材試驗機(jī)供應(yīng)</p><div id="3o3c37m" class="leftbox clearfix"><h1>湖南洛氏硬度計真誠推薦上海尚材試驗機(jī)供應(yīng)</h1><div id="ziri79b" class="proBig"><div id="tcb2c7l" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776514687500/5677335.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ivpqzay" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776514687500/5677335.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="nvjgx3c" 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>湖南洛氏硬度計</p><p><span>***更新：</span>2020-05-30 09:19:36</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="e7kjfma" 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(jī)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(jī): </span>021-50393010</p><p><span>地址: </span>奉城鎮(zhèn)奉旺路373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="mfahtzk" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="wzqhdzk" class="box"><p><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(jī)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(xué)處理層，銅、鋁合金，湖南洛氏硬度計，薄板、鍍鋅、鍍鉻、鍍錫材料，湖南洛氏硬度計，軸承鋼，冷硬鑄件等，湖南洛氏硬度計。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="湖南洛氏硬度計" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776514687500/5677335.jpg"></div><p style="text-indent:25px">HR-150A洛氏硬度計是一種普及型的洛氏硬度測試儀器。適用于材料的洛氏硬度試驗，無需電源，其施加試驗力的速度由液壓緩沖器來調(diào)節(jié)，試驗力變換通過變荷手輪的旋轉(zhuǎn)獲得。本儀器操作簡便，性能穩(wěn)定，使用普遍。應(yīng)用范圍：適用于淬火、調(diào)質(zhì)、退火、冷硬鑄件，可鍛鑄件，硬質(zhì)合金鋼、鋁合金、銅合金、軸承鋼等硬度測定。技術(shù)參數(shù)：型號HR-150A初試驗力10kgf()總試驗力60kgf(),100kgf(),150kgf(1471N)壓頭規(guī)格金剛石洛氏壓頭，Φ試驗力施加方法手動硬度讀取洛氏表盤讀取硬度值硬度值分辨率試樣比較大高度185mm壓頭中心至機(jī)壁距離165mm執(zhí)行標(biāo)準(zhǔn)ISO6508，ASTME18，JISZ2245，GB/T外形尺寸520×245×700mm，外箱尺寸650×370×950mm重量凈重78kg，毛重100kg。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南洛氏硬度計" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776515566406/4753302.jpg"></div><p> 5. 試驗原理和設(shè)備 </p> <p> 5.1 洛氏硬度試驗原理——洛氏壓痕硬度試驗的基本原理見圖1，該試驗按力的施加和卸除分為三個 </p> <p> 步驟。 </p> <p> 第1 步——使壓頭接觸試樣，并施加初試驗力Fo。按規(guī)定的保壓時間保持初試驗力，然后測量壓痕的基準(zhǔn)深度。 </p> <p> 第2 步——壓頭上的力按受控的速率增加附加試驗力F1，達(dá)到總試驗力F，并按規(guī)定的保壓時間保持總試驗力。 </p> <p> ASTM E18-2017?1 金屬材料洛氏硬度的標(biāo)準(zhǔn)試驗方法 </p> <p> 5 </p> <p> 第3 步——卸除附加試驗力，返回到初試驗力。按規(guī)定的保壓時間保持初試驗力，然后測量**終的壓痕深度。 </p> <p> 通過初試驗力下的**終和基準(zhǔn)壓痕深度的差值h 得到洛氏硬度值。卸除初試驗力后，將壓頭從試樣上移開。 </p> <p> 5.1.1 洛氏試驗總體上分為兩類：洛氏硬度試驗和表面洛氏硬度試驗。兩種試驗分類的明顯差異在于 </p> <p> 所使用的試驗力的不同。對于洛氏硬度試驗，初試驗力為10kgf(98N)，總試驗力為60 kgf(589N)， </p> <p> 100 kgf(981N)和150kgf(1471N)。而對于表面洛氏硬度試驗，初試驗力為3kgf(29N)，總試驗力為15 </p> <p> kgf(147N)，30 kgf(294N)和45 kgf(441N)。 </p> <p> 5.1.2 洛氏硬度試驗的壓頭包括金剛石球頂圓錐壓頭和規(guī)定直徑的碳化鎢球壓頭。 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南洛氏硬度計" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776465742187/9618532.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/87164.html</p></div></div></div></div></div><div id="8nqhdph" class="page-right twoColRt"><div id="mp8d3mz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8mdplcy" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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