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id="m8pvc2h" 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</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>?山西布洛維硬度計歡迎咨詢上海尚材試驗機供應</p><div id="m8aczbs" class="leftbox clearfix"><h1>山西布洛維硬度計歡迎咨詢上海尚材試驗機供應</h1><div id="z3jlnuw" class="proBig"><div id="tiahjqs" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776482851562/8452452.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hw3rykb" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776482851562/8452452.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="yc3y28l" 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)品關鍵詞：</span>山西布洛維硬度計</p><p><span>***更新：</span>2020-06-08 04:19:09</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="shegizg" 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="q8vnub7" class="page-proshow02"><p class="title">詳細說明</p><div id="wfmelsu" class="box"><p><p style="text-indent:25px">HRS-150L加高型數(shù)顯洛氏硬度計以新穎的大屏幕顯示，具有良好的可靠性、可操作性和直觀性，是集機電于一體的高新技術產(chǎn)品?？娠@示和設置當前測試標尺、試驗力，山西布洛維硬度計、測試壓頭、保荷時間、硬度轉換值、壓頭類型等，其主要功能如下：洛氏硬度標尺的選擇；各硬度標尺之間的換算值；硬度測試結果可保存查看及打印輸出，自動計算大、**小、平均值；配有RS232接口供用戶連接電腦輸出。本設備為加高型，使測量大物件更加方便。應用范圍：適用于淬火、調(diào)質(zhì)、退火，山西布洛維硬度計、冷硬鑄件，可鍛鑄件，山西布洛維硬度計，硬質(zhì)合金鋼、鋁合金、銅合金、軸承鋼等硬度測定。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山西布洛維硬度計" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776482851562/8452452.jpg"></div><p> 5.2 布氏硬度試驗設備——布氏硬度試驗設備一般包括一臺試驗機，用于支承試件，并向與試 </p> <p> 件接觸的一個球體施加產(chǎn)生壓痕的力，同時包含符合布氏硬度試驗原理的測量壓痕直徑平均值 </p> <p> 的系統(tǒng)。試驗機的結構應使壓頭或試樣在施力期間不出現(xiàn)晃動或側向移動。試驗機的結構應確 </p> <p> 保平滑地向壓頭施力。應注意避免由系統(tǒng)的慣性、液壓系統(tǒng)超調(diào)等引起瞬時的高試驗力。 </p> <p> 5.2.1 有關試驗機的特性、極限值和各自的操作規(guī)程，見設備制造商的說明書。 </p> <p> 5.2.2 鐵砧——鐵砧或樣本支撐架應適合用于待測試的樣本。所有鐵砧的固定和支撐表面應干 </p> <p> 凈清潔，同時無外來雜質(zhì)。典型地，只有當鐵砧不能沿著垂直于壓頭方向來支撐試驗表面，或 </p> <p> 者認為鐵砧不安全時，此時務必更換鐵砧。 </p> <p> <br /> </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山西布洛維硬度計" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776485175781/9117417.jpg"></div><p> 5. 試驗原理和設備 </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準試驗方法 </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;" 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