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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>智能硬度測試儀整體實驗室,硬度測試儀</p><p><span>***更新：</span>2021-01-14 15:07:25</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="zjgyqnz" 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="zol29vx" class="page-proshow02"><p class="title">詳細說明</p><div id="i7nuwyf" class="box"><p><p style="text-indent:25px">5. 試驗原理及試驗裝置 5.1 維氏硬度和努氏硬度的試驗原理—維氏壓痕硬度試驗和努氏壓痕硬度試驗的一般原理包括兩個步驟。 5.1.1 步驟1—在垂直于表面的方向使規(guī)定的合適壓頭壓到試樣上面并施加試驗力F。將試驗力保持一定時間后卸除，智能硬度測試儀整體實驗室。 5.1.2 步驟2—對于維氏硬度試驗，測量兩條對角線的長度并計算平均對角線長度(其可被用于推導(dǎo)維氏硬度值)。對于努氏硬度試驗，測量長對角線的長度(其可被用于推導(dǎo)努氏硬度值)。 5.1.3 當在加載循環(huán)結(jié)束后移走壓頭時，大多數(shù)材料都將展現(xiàn)出一些彈性恢復(fù)。但如果要利用壓痕的對角線長度計算硬度值，則應(yīng)假設(shè)壓痕仍保持卸除試驗力之后的壓頭形狀，智能硬度測試儀整體實驗室，智能硬度測試儀整體實驗室。在努氏試驗中，則應(yīng)假設(shè)壓痕的長對角線與短對角線之比壓頭的相同。 5.2 試驗機—試驗機應(yīng)能支撐試樣并控制壓頭以預(yù)先設(shè)定的試驗力壓入試樣，并且應(yīng)配備有一個光學(xué)顯微鏡，以選擇期望的試驗位置并測量試驗中所產(chǎn)生的壓痕尺寸。試樣表面的平面宜垂直于壓頭的軸線(即施加力的方向)。 5.2.1 試驗機的特征、限制和各種操作程序的描述見設(shè)備制造商的使用手冊。硬度測試儀主要有布氏、洛氏和維氏硬度測試儀。智能硬度測試儀整體實驗室</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="智能硬度測試儀整體實驗室,硬度測試儀" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776623388672/4448171.jpg"></div><p style="text-indent:25px">A.2 硬度計的直接檢驗 A.2.1 試驗力的檢測試驗力校準的相對合成標準不確定度按公式（A.1）計算： …………………………………（A.1）式中： uF RS——標準測力儀的相對標準不確定度（在校準證書中給出），其包含因子k=1； uF HTM——硬度計產(chǎn)生的試驗力的相對標準不確定度。標準測力儀的測量不確定度在相應(yīng)的校準證書中給出。對于重要的應(yīng)用宜考慮下列影響量： ——溫度相關(guān)性； ——長期穩(wěn)定度； ——內(nèi)插法誤差。根據(jù)標準測力儀力傳感器的結(jié)構(gòu)設(shè)計，在校準過程中還宜考慮將傳感器相對硬度計的壓頭軸線轉(zhuǎn)位。測量不確定度評定的示例如下：標準測力儀的擴展測量不確定度（由校準證書給出）： UF RS=0.12%（k=2）標準測力儀的標準力值： FRS=1 839 N 金屬硬度測試儀規(guī)格洛氏硬度計用于客戶生產(chǎn)現(xiàn)場快速測量，示值穩(wěn)定、重復(fù)性強。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="智能硬度測試儀整體實驗室,硬度測試儀" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776425576172/2585125.jpg"></div><p style="text-indent:25px">XHBT-3000ZIII全自動布氏硬度計殼體鑄造而成，剛性強，測量精度高；采用精密結(jié)構(gòu)設(shè)計，試驗力施加由力傳感器直接控制，使整機結(jié)構(gòu)緊湊，加卸試驗力平穩(wěn)、準確。在電氣上由CPU控制試驗過程，物鏡和壓頭間采用自動切換，切換定位采用機械與電子雙重配合，使定位精度提高。內(nèi)置觸摸屏，微型電腦，使參數(shù)設(shè)定、結(jié)果顯示更加直觀，操作更加便捷，也避免了光源給眼睛帶來的刺激和視覺疲勞，減少了測量誤差。選擇相應(yīng)的標尺開始后，硬度計將自動選擇壓頭及物鏡，平臺自動上升，施加完試驗力后自動回到聚焦面，壓痕清晰顯示并自動測量，實現(xiàn)了布氏測量的全自動化。l本儀器具備10級試驗力，13種布氏硬度的測試標尺，適用于測試各種金屬和非金屬材料；l同時具備了3個球壓頭及兩組物鏡，測量不同的試樣時，不再有頻繁更換壓頭的煩惱，也不會因為壓頭和試驗力不匹配造成壓頭損壞，光學(xué)結(jié)構(gòu)嚴密、放大倍率高，使所需觀察的表面非常清晰；l依據(jù)選擇的標尺，物鏡和壓頭自動切換，儀器會根據(jù)設(shè)定的壓頭及物鏡進行測量和觀察；l自動升降平臺采用精密結(jié)構(gòu)，平穩(wěn)性高，開始測量后自動上升，施加完試驗力后自動回到聚焦面，直接進行測量，實現(xiàn)了一鍵自動化的功能。</p><p style="text-indent:25px">HVS-1000Z數(shù)顯顯微維氏硬度計，在機械、光學(xué)、光源上采用獨特精密設(shè)計，使壓痕成像更清晰，測量更精確。配備數(shù)顯測微目鏡，不用查表，也不用輸入壓痕對角線，在屏幕上能顯示試驗方法、試驗力、壓痕長度、保荷時間、測量次數(shù)、轉(zhuǎn)換標尺，操作時只要測量壓痕按目鏡按鈕，即可自動計算出硬度值并顯示在屏幕上。數(shù)據(jù)結(jié)果可通過內(nèi)置打印機輸出，并配有RS232接口供用戶連接電腦輸出。可選配努氏壓頭進行努氏硬度測量，也可選配LCD視屏測量裝置和CCD圖像自動測量系統(tǒng)。應(yīng)用范圍：黑色金屬、有色金屬、IC薄片、表面涂層、層壓金屬；玻璃、陶瓷、瑪瑙、寶石、薄塑料等；碳化層和淬火硬化層的深度及梯度的硬度測試。硬度計搬運時，應(yīng)將接長桿固定，并取下砝碼和吊桿，凡取下砝碼、吊桿前，應(yīng)先拔去電源插頭。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="智能硬度測試儀整體實驗室,硬度測試儀" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776514736328/7872239.jpg"></div><p style="text-indent:25px">GB/T231的本部分規(guī)定了按GB/T 231.1測定布氏硬度用的布氏硬度計（以下簡稱硬度計）的直接檢驗和間接檢驗方法，并規(guī)定了應(yīng)對硬度計進行這兩種方法檢驗的檢驗周期。直接檢驗包括檢查被檢硬度計性能參數(shù)是否處于規(guī)定的限值以內(nèi)，而間接檢驗則是使用按GB/T231.3標定的標準硬度塊進行硬度測量來檢查硬度計的綜合性能。如果硬度計還用于其他方法的硬度試驗，則應(yīng)分別按每一種方法單獨對硬度計進行檢驗。本部分適用于固定安裝的硬度計和便攜式硬度計。對于不能符合按規(guī)定的力/時間配置的硬度計，可按附錄B對硬度計的力和試驗循環(huán)時間進行改進的直接檢驗。根據(jù)布氏硬度的計算公式可知，壓痕測量誤差對硬度值的誤差影響很大。金屬硬度測試儀規(guī)格</p><p style="text-indent:25px">布洛維硬度計即可以打布氏、維氏、洛氏三種硬度的硬度計。比較適合于開發(fā)、研究用。智能硬度測試儀整體實驗室</p><p style="text-indent:25px">4.4 試驗循環(huán)時間的校準與檢驗 4.4.1 試驗循環(huán)時間應(yīng)由硬度計廠商在生產(chǎn)中或在可能會影響試驗循環(huán)時間的維修之后進行檢驗。在其他時間不要求將試驗循環(huán)時間作為直接檢驗的一部分，見表10。 4.4.2 試驗循環(huán)時間應(yīng)符合GB/T 230.1—2018的規(guī)定。 4.4.3 對于自動控制試驗循環(huán)時間的硬度計，用于檢驗試驗循環(huán)時間的計時儀器的擴展不確定度（k = 2）應(yīng)不超過0.2 s。建議試驗循環(huán)時間的測量值，加上或減去校準儀器的擴展不確定度（k = 2），不超過GB/T 230.1—2018規(guī)定的時間限制。 4.4.4 對于需要操作者手動控制試驗循環(huán)時間的硬度計，應(yīng)檢驗硬度計是否能夠?qū)崿F(xiàn)規(guī)定的試驗循環(huán)時間。智能硬度測試儀整體實驗室</p><p> 上海尚材試驗機有限公司是專業(yè)生產(chǎn)各種類型金屬、非金屬材料硬度計的公司，是ISO9001-2015國際質(zhì)量體系認證企業(yè)，是上海市****，是全國鋼標準化技術(shù)委員會力學(xué)分會委員單位之一，并參與了洛氏、布氏和維氏硬度試驗國家標準的修編。公司主要開發(fā)布氏、洛氏、顯微、維氏硬度計，共有30多個品種，產(chǎn)品質(zhì)量穩(wěn)定、功能完善，****各地并出口歐美、中東、亞洲、非洲、澳洲等國際市場，深受國內(nèi)外商客青睞。 </p> <p> 公司擁有十數(shù)年穩(wěn)定研發(fā)團隊，業(yè)內(nèi)專業(yè)顧問團隊。20畝生產(chǎn)基地，5棟標準工業(yè)廠房，坐擁長三角地理優(yōu)勢，堅持5S管理多年。擁有完備的機加工車間，CNC、數(shù)控機床等各類加工設(shè)備逾50臺，專業(yè)技術(shù)工人近80人，制造時間和品質(zhì)掌控在手。公司高度關(guān)注“技術(shù)創(chuàng)新、市場營銷、生產(chǎn)管理、企業(yè)文化”四大領(lǐng)域，將不斷推行“標準化、科學(xué)化、精細化”的現(xiàn)代管理方式，目標將自身打造成“高品位、高效率、高質(zhì)量、優(yōu)服務(wù)”的現(xiàn)代先進制造企業(yè)。 </p> <p> 在“中國制造2025”強國戰(zhàn)略**下，我們立志為自己在世界硬度計行業(yè)占據(jù)一席之地盡全部力量；為振興中國民營制造業(yè)，詮釋“MADE IN CHINA”新概念盡到自己綿薄之力！ </p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2845595.html</p></div></div></div></div></div><div id="ue2oq2g" class="page-right twoColRt"><div id="hr7mtfh" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rgi2vc3" class="recomPic 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