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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="zy2olfr" class="twoCol"><div id="fz8ogyf" 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>?國內(nèi)質(zhì)量好的硬度機上海尚材試驗機供應</p><div id="wliuwda" class="leftbox clearfix"><h1>國內(nèi)質(zhì)量好的硬度機上海尚材試驗機供應</h1><div id="82um2xp" class="proBig"><div id="ztvxeqx" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776461728515/549013.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="2jnaceg" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776461728515/549013.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="dhewdfh" 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>國內(nèi)質(zhì)量好的硬度機,硬度機</p><p><span>***更新：</span>2021-01-05 12:05:45</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="l2fs7yl" 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="8ypbdk3" class="page-proshow02"><p class="title">詳細說明</p><div id="cw8lnur" class="box"><p><p> 或回火溫度325~375℃，回火次數(shù)2~3次，國內(nèi)質(zhì)量好的硬度機。CR12MOV模具鋼材加工工藝編輯冷擠壓摸?坯軟化規(guī)范：使??鐵屑保護加熱,溫度760~780°C,時間10h,爐冷,硬度l96HBW,可順利實現(xiàn)冷擠壓成形普通等溫球化退?規(guī)范：850~870℃×3~4h,隨爐冷卻到740~760℃×4~5h等溫,出爐空冷硬度≤241HBW，國內(nèi)質(zhì)量好的硬度機,共晶碳化物等級≤3級好等溫溫度740~76o°C,時間≥4~5h球化退?規(guī)范(860±1ü)°C×2~4h,以30°C/h冷速爐冷,(740±10)°cx4-6h,隨爐緩慢冷卻到500~600°C,出爐空冷.硬度207~255HBW。普通淬?、回?規(guī)范淬?溫度1000~1050°c,油淬或?淬,硬度260HRC;回?溫度160~180，國內(nèi)質(zhì)量好的硬度機,回?時間2h,或回?溫度325~375°C,回?2~3次CR12MOV模具鋼材典型應?舉例編輯1)該鋼可?于制作材料厚度>3mm的沖裁模具復雜形狀的凸摸、凹摸、鑲塊.制作凸摸時建議硬度58~62HRC,制作凹模時建議硬度60~64HRC。2)?于制作沖裁模具中要求?耐磨的凸模、凹摸。制作凸模時建議硬度為60~62HRC,制作凹模時建議硬度為62~64HRC。3)?于制作拉深模中要求?耐的凹模,建議硬度為62~)?于制作彎曲模中要求?耐磨、形狀復雜的凸模、凹模及鑲塊。制作凸模時建議硬度60~64HRC,制作凹模時議硬度60~64HRC5)?于制作鋁件冷擠壓摸的凸模、凹模。在更換壓頭或砧座時，注意接觸部位要擦干凈。國內(nèi)質(zhì)量好的硬度機</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="國內(nèi)質(zhì)量好的硬度機,硬度機" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776461728515/549013.jpg"></div><p> 維氏硬度計原理應用以及優(yōu)缺點維氏硬度計（GB/—1999）相關硬度計介紹:HV-5型數(shù)顯小負荷維氏硬度計維氏硬度計原理采用正四棱錐體金剛石壓頭，在試驗力作用下壓入試樣表面，保持規(guī)定時間后，卸除試驗力，測量試樣表面壓痕對角線長度。試驗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）計算：HV=常數(shù)×試驗力/壓痕表面積≈F／d2…………（3－1）式中：HV————維氏硬度符號；F――――試驗力，N；d————壓痕兩對角線d1、d2的算術平均值，mm實用中是根據(jù)對角線長度d通過查表得到維氏硬度值。國家標準規(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，后面為試驗力值。標準的試驗保持時間為10～15S。如果選用的時間超出這一范圍，在力值后面還要注上保持時間。例如：600HV30—表示采用（30kg）的試驗力，保持時間10～15S時得到的硬度值為600。600HV30/20—表示采用（30kg）的試驗力，保持時間20S時得到的硬度值為600。維氏硬度試驗的分類和試驗力選擇維氏硬度試驗按試驗力大小的不同，細分為三種試驗，即：維氏硬度試驗、小負荷維氏硬度試驗和顯微維氏硬度試驗。全自動維氏硬度機整體實驗室石膏硬度計適用于建筑石膏硬度測量，測量在固定荷載作用下球痕的深度，經(jīng)計算得出試件的石膏硬度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="國內(nèi)質(zhì)量好的硬度機,硬度機" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776514687500/5677335.jpg"></div><p> 表3-1維氏硬度試驗的三種方法維氏硬度試驗可選用的試驗力值很多，見表3-2。表3-2推薦的維氏硬度試驗力試驗力的選擇要根據(jù)試樣種類、試樣厚度和預期的硬度范圍而定。標準規(guī)定，試樣或試驗層的厚度至少為壓痕對角線長度的。試驗后試樣背面不應出現(xiàn)可見的變形痕跡。維氏硬度試驗的優(yōu)點維氏硬度試驗的壓痕是正方形，輕廓清晰，對角線測量準確，因此，維氏硬度試驗是常用硬度試驗方法中精度高的，同時它的重復性也很好，這一點比布氏硬度計優(yōu)越。維氏硬度試驗測量范圍寬廣，可以測量目前工業(yè)上所用到的幾乎全部金屬材料，從很軟的材料（幾個維氏硬度單位）到很硬的材料（3000個維氏硬度單位）都可測量。維氏硬度試驗大的優(yōu)點在于其硬度值與試驗力的大小無關，只要是硬度均勻的材料，可以任意選擇試驗力，其硬度值不變。這就相當于在一個很寬廣的硬度范圍內(nèi)具有一個統(tǒng)一的標尺。這一點又比洛氏硬度試驗來得優(yōu)越。在中、低硬度值范圍內(nèi)，在同一均勻材料上，維氏硬度試驗和布氏硬度試驗結(jié)果會得到近似的硬度值。例如，當硬度值為400以下時，HV≈HB，如圖3-2所示。維氏硬度試驗的試驗力可以小到10gF，壓痕非常小，特別適合測試薄小材料。維氏硬度試驗的缺點維氏硬度試驗效率低。</p><p> 4按實驗原理分類可分為布氏、洛氏、肖氏、維氏、里氏、努普、巴氏和劃痕、銼刀以及其他物理檢測方法，如超聲波、磁矯頑力等等。11種常見硬度試驗方法1洛氏硬度（HR）用一個金剛石圓錐（HRC）或經(jīng)硬化的（鎢）鋼球壓頭（HRB等），以10kgf的預載荷和60,100,或150kgf的主試驗力壓入被測材料表面。2表面洛氏硬度（HR）依據(jù)設定的標尺，用一個金剛石圓錐或經(jīng)硬化的（鎢）鋼球壓頭壓入被測材料表面。表面洛氏測量應用的力值較小，產(chǎn)生的壓痕較淺，多用于相對易碎和很薄的材料中。預載荷為3kgf，主試驗力為15,30,或45kgf。3維氏硬度（HV）以1-120kgf的試驗力，將相對面夾角為136°的方錐形金剛石壓頭壓入被測材料表面。壓痕則應用顯微鏡或USB攝像頭來進行視頻觀測及測量。4顯微維氏硬度（HV）通常以不超過1kgf的試驗力，將相對面夾角為136°的方錐形金剛石壓頭壓入被測材料表面。壓痕則應用精密顯微鏡或**辨率的USB攝像頭來進行視頻觀測及測量。600x的放大倍數(shù)是**常見的，1000x的放大倍數(shù)正愈加被***的應用。5努氏硬度（HK）通常以不超過1kgf的試驗力，將細長的金剛石椎體壓入被測材料表面。壓痕則應用精密顯微鏡或**辨率的USB攝像頭來進行視頻觀測及測量。洛氏硬度各標度有一事實上的適用范圍，要根據(jù)規(guī)定正確選用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="國內(nèi)質(zhì)量好的硬度機,硬度機" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776485175781/9117417.jpg"></div><p> 1、45——優(yōu)質(zhì)碳素結(jié)構(gòu)鋼，是**常用中碳調(diào)質(zhì)鋼。首要特征:**常用中碳調(diào)質(zhì)鋼，歸納力學功能杰出，淬透性低，水淬時易生裂紋。小型件宜選用調(diào)質(zhì)處理，大型件宜選用正火處理。運用舉例:首要用于制作強度高的運動件，如透平機葉輪、壓縮機活塞。軸、齒輪、齒條、蝸桿等。焊接件留意焊前預熱，焊后消除應力退火。2、Q235A（A3鋼）——**常用的碳素結(jié)構(gòu)鋼。首要特征:具有高的塑性、耐性和焊接功能、冷沖壓功能，以及必定的強度、好的冷彎功能。運用舉例:***用于一般要求的零件和焊接結(jié)構(gòu)。如受力不大的拉桿、連桿、銷、軸、螺釘、螺母、套圈、支架、機座、建筑結(jié)構(gòu)、橋梁等。3、40Cr——運用*****的鋼種之一，屬合金結(jié)構(gòu)鋼。首要特征:經(jīng)調(diào)質(zhì)處理后，具有杰出的歸納力學功能、低溫沖擊韌度及低的缺口敏感性，淬透性杰出，油冷時可得到較高的疲勞強度，水冷時雜亂形狀的零件易發(fā)生裂紋，冷彎塑性中等，回火或調(diào)質(zhì)后切削加工性好，但焊接性欠好，易發(fā)生裂紋，焊前應預熱到100～150℃，一般在調(diào)質(zhì)狀況下運用，還能夠進行碳氮共滲和高頻外表淬火處理。運用舉例:調(diào)質(zhì)處理后用于制作中速、中載的零件，如機床齒輪、軸、蝸桿、花鍵軸、頂針套等。使壓頭或砧座與試驗機接觸部分壓緊，接觸良好，以免影響試驗結(jié)果的準確性。邵氏硬度機</p><p style="text-indent:25px">硬度低于HRC20時應用HRB標度進行測試。國內(nèi)質(zhì)量好的硬度機</p><p> 在強度和耐磨性方面DC53超越SKD11.耐性是SKD11的兩倍.DC53的耐性在冷作模具制作很少呈現(xiàn)裂紋和龜裂.**進步了運用壽數(shù).剩余應力小.經(jīng)高溫回頭減少剩余應力.由于線切割加工后的裂痕和變形得到***.切削性和研磨性超越SKD11.用于精細沖壓模,冷鍛,深拉模等.15、SKH-9——耐磨性,耐性大的通用高速鋼.日本日立株式出產(chǎn).用于冷鍛模,切條機,鉆頭,鉸刀,沖頭號。16、ASP-23——粉末冶金高速鋼,瑞典產(chǎn).碳化物散布極均勻,耐磨損,高耐性,易加工,熱處理尺度穩(wěn)定.用于沖頭,深拉伸模,鉆模,銑刀和剪切刀片等各類長壽數(shù)之切削東西。17、P20——一般要求的巨細塑膠模具,美國產(chǎn).可電蝕操作.出廠狀況預硬HB270-300.淬火硬度HRC52。18、718——高要求的巨細塑膠模具,瑞典產(chǎn).特別電蝕操作.出廠狀況預硬HB290-330.淬火硬度HRC5219、Nak80——高鏡面,高精度塑膠模具,日本大同株式產(chǎn).出廠狀況預硬HB370-400.淬火硬度HRC5220、S136——防腐蝕及需鏡面拋光塑膠模具,瑞典產(chǎn).出廠狀況預硬HB＜215.淬火硬度HRC52。21、H13——一般常用壓鑄模,用于鋁,鋅,鎂及合金壓鑄.熱沖壓模,鋁揉捏模,22、SKD61——***壓鑄模,日本日立株式產(chǎn),經(jīng)電碴重溶技能,在運用壽數(shù)上比H13有顯著的進步.熱沖壓模,鋁揉捏模。國內(nèi)質(zhì)量好的硬度機</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委員會力學分會委員單位之一，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備逾50臺，專業(yè)技術工人近80人，制造時間和品質(zhì)掌控在手。公司高度關注“技術創(chuàng)新、市場營銷、生產(chǎn)管理、企業(yè)文化”四大領域，將不斷推行“標準化、科學化、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”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/2715459.html</p></div></div></div></div></div><div id="3oqxliu" class="page-right twoColRt"><div id="hbt8ikb" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="u8pgnub" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" class="vcenter" 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