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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>?山東硬度計網(wǎng)站值得信賴上海尚材試驗機供應</p><div id="3btldfm" class="leftbox clearfix"><h1>山東硬度計網(wǎng)站值得信賴上海尚材試驗機供應</h1><div id="tdahjac" class="proBig"><div id="xce3qhj" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776459306640/7296460.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="33hsu8e" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776459306640/7296460.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="etf3wel" 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>山東硬度計網(wǎng)站</p><p><span>***更新：</span>2020-06-05 10:19:08</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="a22su9h" 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="vc8mtiu" class="page-proshow02"><p class="title">詳細說明</p><div id="mw83kmj" class="box"><p><p style="text-indent:25px"> MHB-3000數(shù)顯布氏硬度計是精密的機械結(jié)構(gòu)和微機控制閉環(huán)系統(tǒng)的機電一體化產(chǎn)品，儀器取消了砝碼，采用電動加卸試驗力，由‰精度的壓力傳感器進行反饋，CPU控制并能對試驗中損失的試驗力進行自動補償。儀器外接數(shù)顯測微目鏡，不用查表，也不用鍵入壓痕長度，在液晶屏上直接能顯示硬度值和試驗力、保荷時間、壓痕長度等，山東硬度計網(wǎng)站，操作時只要測量完壓痕按目鏡按鈕，即可自動計算出硬度值并顯示在屏幕上，讀數(shù)精確，操作方便。應用范圍：適用于鑄鐵，山東硬度計網(wǎng)站、鋼材、有色金屬及軟合金等材料的硬度測定，山東硬度計網(wǎng)站，也適用于硬質(zhì)的塑料、電木等某些非金屬材料硬度的測定。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東硬度計網(wǎng)站" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776459306640/7296460.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;" alt="山東硬度計網(wǎng)站" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776467089843/4201506.jpg"></div><p style="text-indent:25px">560RSSZ自動全洛氏硬度計外形新穎、功能齊全、操作方便、顯示清晰直觀、性能穩(wěn)定，是集機電于一體的高新技術(shù)產(chǎn)品。儀器取消了砝碼，采用電動加卸試驗力，可進行洛氏、表面洛氏全部標尺的硬度測試。1.支持洛氏及表面洛氏硬度全部標尺的選用；2.硬度標尺轉(zhuǎn)換一值多換；3.具備圓弧修正補償功能；4.觸摸屏顯示及操作，配備動態(tài)曲線圖，實時監(jiān)控力值傳感器與位移傳感器運作狀態(tài)；5.工作臺點動操作，快速上升或下降；6.一鍵完成工件上升，壓頭加荷、保荷、卸荷，顯示硬度值，試臺回到初始位置；7.具備數(shù)據(jù)存儲，自動計算大、**小、平均值，測試結(jié)果可選擇性刪除，支持打印輸出，并配有RS232接口供用戶連接電腦輸出。應用范圍：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。也適用于表面淬火鋼，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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東硬度計網(wǎng)站" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776404941406/5970398.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/155663.html</p></div></div></div></div></div><div id="te87ifm" class="page-right twoColRt"><div id="eyvc7sz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8w2cetp" class="recomPic likePro"><a 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