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href="http://www.cdcfah.com/cp/third-shiyanji_yingduji/">硬度計(jì)</a>?品質(zhì)硬度機(jī)對照表上海尚材試驗(yàn)機(jī)供應(yīng)</p><div id="j28hk7s" class="leftbox clearfix"><h1>品質(zhì)硬度機(jī)對照表上海尚材試驗(yàn)機(jī)供應(yīng)</h1><div id="hlxe3ug" class="proBig"><div id="qpriulh" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776425839843/286410.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="82ulctk" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776425839843/286410.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8bxea2o" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>品質(zhì)硬度機(jī)對照表,硬度機(jī)</p><p><span>***更新：</span>2021-01-29 08:04:40</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="kakbxyz" 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(yàn)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="t8yasub" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="f7zwn7k" class="box"><p><p> 硬度是一個(gè)專業(yè)的物理術(shù)語，材料局部抵抗硬物壓入其表面的能力稱為硬度，品質(zhì)硬度機(jī)對照表。由于規(guī)定了不同的測試方法，所以有不同的硬度標(biāo)準(zhǔn)。各種硬度標(biāo)準(zhǔn)的力學(xué)含義不同，品質(zhì)硬度機(jī)對照表，相互不能直接換算，但可通過試驗(yàn)加以對比。彈簧鋼砍粗鐵小意思硬度一般分為三種：①劃痕硬度。主要用于比較不同礦物的軟硬程度，方法是選一根一端硬一端軟的棒，將被測材料沿棒劃過，根據(jù)出現(xiàn)劃痕的位置確定被測材料的軟硬。定性地說，硬物體劃出的劃痕長，軟物體劃出的劃痕短。②壓入硬度。主要用于金屬材料，方法是用一定的載荷將規(guī)定的壓頭壓入被測材料，以材料表面局部塑性變形的大小比較被測材料的軟硬，品質(zhì)硬度機(jī)對照表。由于壓頭、載荷以及載荷持續(xù)時(shí)間的不同，壓入硬度有多種，主要是布氏硬度、洛氏硬度、維氏硬度和顯微硬度等幾種。③回跳硬度。主要用于金屬材料，方法是使一特制的小錘從一定高度自由下落沖擊被測材料的試樣，并以試樣在沖擊過程中儲(chǔ)存（繼而釋放）應(yīng)變能的多少（通過小錘的回跳高度測定）確定材料的硬度。凌空削發(fā)不是神話在刀劍硬度的測試上，我們通常采用的是洛氏硬度測試中的HRC標(biāo)尺，通常用于測試淬火鋼、回火鋼、調(diào)質(zhì)鋼和部分不銹鋼。這是金屬加工行業(yè)應(yīng)用**多的硬度試驗(yàn)方法。HRC適用范圍HRC20－67。觸屏技術(shù)的出現(xiàn)徹底打破了硬度測試儀器在獲取和分析試驗(yàn)結(jié)果及相關(guān)數(shù)據(jù)方面的限制。品質(zhì)硬度機(jī)對照表</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="品質(zhì)硬度機(jī)對照表,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776425839843/286410.jpg"></div><p> 冷軋板，也稱作冷軋鋼板、冷軋薄板、冷板。包括不銹鋼板、彈簧鋼板、硅鋼片、鍍鋅板、鍍錫板、鍍鋁板等。冷軋板主要用于零件的沖壓加工，而冷軋板的力學(xué)性能十分重要，它直接關(guān)系到板材的沖壓性能。冷軋板是以不同的熱處理狀態(tài)分級的，不同硬度的材料，用于不同的加工方法。國家標(biāo)準(zhǔn)GB/T13237-1991《優(yōu)質(zhì)碳素結(jié)構(gòu)鋼冷軋薄鋼板和鋼帶》將冷軋薄板大致分為三級，P級用于普通沖壓，S級用于深度沖壓，Z級用于**深度沖壓。中國冶金標(biāo)準(zhǔn)YB/T5059-1993《低碳鋼冷軋鋼帶》將冷軋板帶按硬度分為五級，即：TR（特軟）、R（軟）、BR（半軟）、DY（低硬）和Y（冷硬）。其實(shí)通過一定的冷軋變形程度和冷軋后熱處理程度的適當(dāng)配合，可以在更***的范圍內(nèi)滿足用戶關(guān)于材料力學(xué)性能方面的要求。冷軋板根據(jù)用戶加工上的要求還可以分成更多的級別。例如：日本工業(yè)標(biāo)準(zhǔn)JISG3141-1996《冷軋?zhí)妓劁撲摪搴弯搸А返姆诸惓譃橐话阌茫╯pcc）、沖壓用(spcd)和深沖壓用（spce）三類外，還細(xì)分為退火、標(biāo)準(zhǔn)調(diào)質(zhì)、1/8硬、1/4硬、1/2硬、全硬等級別。在冷軋板力學(xué)性能的檢測方面，一些標(biāo)準(zhǔn)只規(guī)定了拉伸試驗(yàn)，另一些標(biāo)準(zhǔn)除拉伸試驗(yàn)外還規(guī)定了硬度試驗(yàn)。中國標(biāo)準(zhǔn)GB/T13237-1991就只規(guī)定了冷軋板的拉伸試驗(yàn)。品質(zhì)硬度機(jī)整體實(shí)驗(yàn)室各硬度值相互之間不能直接比較，只能通過硬度對照表換算。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="品質(zhì)硬度機(jī)對照表,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776392939453/6623374.jpg"></div><p> 相當(dāng)于HB225--650若硬度高于此范圍則用洛式硬度A標(biāo)尺HRA。若硬度低于此范圍則用洛式硬度B標(biāo)尺HRB。布式硬度上限值HB650，不能高于此值。(4)洛氏硬度計(jì)C標(biāo)尺之壓頭為頂角120度的金剛石圓錐，試驗(yàn)載荷為一確定值，中國標(biāo)準(zhǔn)是150公斤力。布氏硬度計(jì)之壓頭為淬硬鋼球(HBS)或硬質(zhì)合金球(HBW)，試驗(yàn)載荷隨球直徑不同而不同，從3000到。(5)洛式硬度壓痕很小，測量值有局部性，須測數(shù)點(diǎn)求平均值，適用成品和薄片，歸于無損檢測一類。布式硬度壓痕較大，測量值準(zhǔn)，不適用成品和薄片，一般不歸于無損檢測一類。(6)洛式硬度的硬度值是一無名數(shù)，沒有單位。(因此習(xí)慣稱洛式硬度為多少度是不正確的。)布式硬度的硬度值有單位，且和抗拉強(qiáng)度有一定的近似關(guān)系。(7)洛式硬度直接在表盤上顯示、也可以數(shù)字顯示，操作方便，快捷直觀，適用于大量生產(chǎn)中。布式硬度需要用顯微鏡測量壓痕直徑，然后查表或計(jì)算，操作較繁瑣。</p><p> 里氏硬度計(jì)為成品、半成品模具的硬度測試提供了一個(gè)解決方案，可以先測試模具的里氏硬度，然后再換算成HRC洛氏硬度。里氏硬度計(jì)測量是目前模具行業(yè)應(yīng)用**為普遍的硬度測試方法，而且時(shí)代里氏硬度計(jì)應(yīng)用*****的領(lǐng)域就是模具行業(yè)。如前面所述，成品、半成品模具合理的硬度范圍是比較窄的，里氏硬度計(jì)不能滿足這樣的精度要求。但是這就是目前模具行業(yè)的現(xiàn)狀，沒有更好的解決辦法。對于進(jìn)行了表面的滲碳、滲氮或激光淬火處理，表面硬化處理的模具需要測試模具的表面硬度。滲碳層通常較厚，當(dāng)滲碳層厚度大于，可直接用洛氏硬度計(jì)，測試HRC硬度。當(dāng)滲碳層厚度在，可以采用洛氏硬度計(jì)的A標(biāo)尺。A標(biāo)尺的試驗(yàn)力較小，只有60kg（C標(biāo)尺試驗(yàn)力是150kg），可以在模具表面壓一個(gè)較淺的壓痕，不至于將硬化層壓透，硬度測試更準(zhǔn)確。測得的HRA硬度值可方便地通過查表換算成HRC硬度值。對于較薄的滲碳層或滲氮層，只要厚度大于，都可以采用表面洛氏硬度計(jì)。表面洛氏硬度計(jì)的試驗(yàn)力只有15kg、30kg或45kg。表面洛氏硬度壓痕更小，例如，模具硬度為60HRC時(shí)，表面洛氏硬度值為，壓痕深度等于（），這樣的壓痕肉眼幾乎難于分辨。因此表面洛氏硬度計(jì)還可以測試成品模具。在更換壓頭或砧座時(shí)，注意接觸部位要擦干凈。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="品質(zhì)硬度機(jī)對照表,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776468222656/2992200.jpg"></div><p> 調(diào)質(zhì)并高頻外表淬火后用于制作外表高硬度、耐磨的零件，如齒輪、軸、主軸、曲軸、心軸、套筒、銷子、連桿、螺釘螺母、進(jìn)氣閥等，經(jīng)淬火及中溫回火后用于制作重載、中速?zèng)_擊的零件，如油泵轉(zhuǎn)子、滑塊、齒輪、主軸、套環(huán)等，經(jīng)淬火及低溫回火后用于制作重載、低沖擊、耐磨的零件，如蝸桿、主軸、軸、套環(huán)等，碳氮共滲處即后制作尺度較大、低溫沖擊韌度較高的傳動(dòng)零件，如軸、齒輪等。4、HT150——灰鑄鐵運(yùn)用舉例:齒輪箱體，機(jī)床床身，箱體，液壓缸，泵體，閥體，飛輪，氣缸蓋，帶輪，軸承蓋等5、35——各種規(guī)范件、緊固件的常用資料首要特征:強(qiáng)度恰當(dāng)，塑性較好，冷塑性高，焊接性尚可。冷態(tài)下可部分鐓粗和拉絲。淬透性低，正火或調(diào)質(zhì)后運(yùn)用運(yùn)用舉例:適于制作小截面零件，可承受較大載荷的零件：如曲軸、杠桿、連桿、鉤環(huán)等，各種規(guī)范件、緊固件6、65Mn——常用的繃簧鋼運(yùn)用舉例:小尺度各種扁、圓繃簧、座墊繃簧、繃簧發(fā)條，也可制做繃簧環(huán)、氣門簧、離合器簧片、剎車繃簧、冷卷螺旋繃簧，卡簧等。7、0Cr18Ni9——**常用的不銹鋼（美國鋼號304，日本鋼號SUS304）特性和運(yùn)用:作為不銹耐熱鋼運(yùn)用*****，如食品用設(shè)備，一般化工設(shè)備。實(shí)踐證明，金屬材料的各種硬度值之間，硬度值與強(qiáng)度值之間具有近似的相應(yīng)關(guān)系。錘擊式硬度機(jī)</p><p style="text-indent:25px">邵氏硬度計(jì)本硬度計(jì)（橡膠硬度計(jì)）能快速測定塑料、橡膠、合成樹脂等的邵氏硬度。品質(zhì)硬度機(jī)對照表</p><p> 維氏硬度計(jì)原理應(yīng)用以及優(yōu)缺點(diǎn)維氏硬度計(jì)（GB/—1999）相關(guān)硬度計(jì)介紹:HV-5型數(shù)顯小負(fù)荷維氏硬度計(jì)維氏硬度計(jì)原理采用正四棱錐體金剛石壓頭，在試驗(yàn)力作用下壓入試樣表面，保持規(guī)定時(shí)間后，卸除試驗(yàn)力，測量試樣表面壓痕對角線長度。試驗(yàn)力除以壓痕表面積的商就是維氏硬度值。維氏硬度值按式（３－１）計(jì)算：HV=常數(shù)×試驗(yàn)力/壓痕表面積≈F／d2…………（3－1）式中：HV————維氏硬度符號；F――――試驗(yàn)力，N；d————壓痕兩對角線d1、d2的算術(shù)平均值，mm實(shí)用中是根據(jù)對角線長度d通過查表得到維氏硬度值。國家標(biāo)準(zhǔn)規(guī)定維氏硬度壓痕對角線長度范圍為～維氏硬度的表示方法維氏硬度表示為HV，維氏硬度符號HV前面的數(shù)值為硬度值，后面為試驗(yàn)力值。標(biāo)準(zhǔn)的試驗(yàn)保持時(shí)間為10～15S。如果選用的時(shí)間超出這一范圍，在力值后面還要注上保持時(shí)間。例如：600HV30—表示采用（30kg）的試驗(yàn)力，保持時(shí)間10～15S時(shí)得到的硬度值為600。600HV30/20—表示采用（30kg）的試驗(yàn)力，保持時(shí)間20S時(shí)得到的硬度值為600。維氏硬度試驗(yàn)的分類和試驗(yàn)力選擇維氏硬度試驗(yàn)按試驗(yàn)力大小的不同，細(xì)分為三種試驗(yàn)，即：維氏硬度試驗(yàn)、小負(fù)荷維氏硬度試驗(yàn)和顯微維氏硬度試驗(yàn)。品質(zhì)硬度機(jī)對照表</p><p> 上海尚材試驗(yàn)機(jī)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(jì)的公司，是ISO9001-2015國際質(zhì)量體系認(rèn)證企業(yè)，是上海市****，是全國鋼標(biāo)準(zhǔn)化技術(shù)委員會(huì)力學(xué)分會(huì)委員單位之一，并參與了洛氏、布氏和維氏硬度試驗(yàn)國家標(biāo)準(zhǔn)的修編。公司主要開發(fā)布氏、洛氏、顯微、維氏硬度計(jì)，共有30多個(gè)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?dāng)?shù)年穩(wěn)定研發(fā)團(tuán)隊(duì)，業(yè)內(nèi)專業(yè)顧問團(tuán)隊(duì)。20畝生產(chǎn)基地，5棟標(biāo)準(zhǔn)工業(yè)廠房，坐擁長三角地理優(yōu)勢，堅(jiān)持5S管理多年。擁有完備的機(jī)加工車間，CNC、數(shù)控機(jī)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(shí)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(biāo)準(zhǔn)化、科學(xué)化、精細(xì)化”的現(xiàn)代管理方式，目標(biāo)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(jìn)制造企業(yè)。 </p> <p> 在“中國制造2025”強(qiáng)國戰(zhàn)略**下，我們立志為自己在世界硬度計(jì)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/3063646.html</p></div></div></div></div></div><div id="uqhe2ug" 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