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class="home-main container clearfix"><div id="atactah" class="twoCol"><div id="wpmyqh7" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</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(yàn)機(jī)</a>?<a href="http://www.cdcfah.com/cp/third-shiyanji_yingduji/">硬度計(jì)</a>?布氏硬度機(jī)現(xiàn)貨上海尚材試驗(yàn)機(jī)供應(yīng)</p><div id="bzryqhe" class="leftbox clearfix"><h1>布氏硬度機(jī)現(xiàn)貨上海尚材試驗(yàn)機(jī)供應(yīng)</h1><div id="88bijls" class="proBig"><div id="dmjlszb" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776393359375/4906819.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="2bngdkb" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776393359375/4906819.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="edfvxe3" 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>布氏硬度機(jī)現(xiàn)貨,硬度機(jī)</p><p><span>***更新：</span>2021-01-17 20:07:51</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="ra27rcz" 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(hào)</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="kjqnu82" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="tnprdxd" class="box"><p><p> 飽嘗較大沖擊的各種模具,例如一般拉伸模,沖孔凹模,沖模,落料模,切邊模,滾邊模,拉絲模,冷揉捏模,冷切剪刀,圓鋸,規(guī)范東西,量具等。11、SKD11——耐性鉻鋼.日本日立株式出產(chǎn).在技能上改進(jìn)鋼中的鑄造安排,細(xì)化了晶粒.較Cr12mov的耐性和耐磨性有所進(jìn)步.延長了模具的運(yùn)用壽數(shù).12、D2——高碳高鉻冷作鋼,美國產(chǎn).具有高的淬透性,淬硬性,耐磨性,高溫抗氧化功能好,淬火和拋光后抗銹蝕才能好,熱處理變形小,宜制作各種要求高精度,長壽數(shù)的冷作模具,***和量具,例如拉伸模,冷揉捏模,冷剪切刀等。13、SKD11(SLD)——不變形耐性高鉻鋼.日本日立株式出產(chǎn).由于鋼中MO,V含量添加，布氏硬度機(jī)現(xiàn)貨,改進(jìn)鋼中的鑄造安排,細(xì)化了晶粒,改進(jìn)了碳化物描摹,因此此鋼的強(qiáng)耐性(抗彎強(qiáng)度,撓度,沖擊韌度等)比SKD1,D2高,耐磨性也有所添加,并且具有更高的耐回火性.實(shí)踐證明此鋼模具壽數(shù)比Cr12mov有所進(jìn)步.常制作要求高的模具,如拉伸模，布氏硬度機(jī)現(xiàn)貨，布氏硬度機(jī)現(xiàn)貨,沖擊砂輪片的模等。14、DC53——高耐性高鉻鋼,日本大同株式出產(chǎn).熱處理硬度高于SKD11.高溫(520-530)回火后可達(dá)62-63HRC高硬度。自動(dòng)轉(zhuǎn)塔數(shù)顯布氏硬度計(jì)，采用獨(dú)特的雙核雙芯片，改變以往的錘壓式加荷方法。布氏硬度機(jī)現(xiàn)貨</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="布氏硬度機(jī)現(xiàn)貨,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776393359375/4906819.jpg"></div><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(cè)量試樣表面壓痕對(duì)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(hào)；F――――試驗(yàn)力，N；d————壓痕兩對(duì)角線d1、d2的算術(shù)平均值，mm實(shí)用中是根據(jù)對(duì)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(duì)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(hào)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)。微型硬度機(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(duì)照表換算。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="布氏硬度機(jī)現(xiàn)貨,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776459804687/5915541.jpg"></div><p> 將其壓入材料表面，通過觀察其表面凹坑的大小，來得到其主要參數(shù)(kgf/mm2)。雖然表達(dá)材料硬度的種類有多種，而且每種材料的檢測(cè)方式不同，但是其實(shí)各種硬度之間是可以進(jìn)行相互換算的，具體如下：洛氏硬度與維氏硬度的換算(1)洛氏硬度與維氏硬度的換算公式是通過對(duì)Hans·Qvarnstorm提出的TheQvarnstorm總結(jié)得到的：而且，此公式用我國公布的黑色金屬硬度標(biāo)準(zhǔn)數(shù)據(jù)進(jìn)行換算，其HRC誤差大約保持在±HRC范圍內(nèi)，而且就算差別很大也就士。(2)通過使用大小不一的力擠壓被測(cè)材料，然后通過對(duì)洛氏硬度與維氏硬度壓痕深度關(guān)系曲線的分析得出換算公式。本公式與國家標(biāo)準(zhǔn)實(shí)驗(yàn)換算值對(duì)照,通過這種方式得到的換算值之誤差竟只有±。洛氏硬度與布氏硬度的換算(1)對(duì)布氏壓痕和洛氏壓痕深度關(guān)系進(jìn)行分析，通過壓頭的應(yīng)力得出換算公式計(jì)算結(jié)果與國家標(biāo)準(zhǔn)實(shí)驗(yàn)值對(duì)照，且換算誤差為±。(2)根據(jù)實(shí)際實(shí)驗(yàn)數(shù)據(jù)用線性回歸法得到公式，且其公式誤差偏大，正常情況下，可以通過范圍偏小，不過，這種方法一般使用在精度要求不高的情況下可以使用。</p><p> 通過對(duì)洛氏硬度與維氏硬度壓痕深度關(guān)系曲線的分析得出公式本公式與國家標(biāo)準(zhǔn)實(shí)驗(yàn)換算值對(duì)照,換算式計(jì)算結(jié)果與標(biāo)準(zhǔn)實(shí)驗(yàn)值之誤差為±。(3)根據(jù)實(shí)際的實(shí)驗(yàn)數(shù)據(jù)利用線性回歸的方法對(duì)洛氏硬度與維氏硬度的換算進(jìn)行探討，得出公式：本公式使用范圍小，誤差較大，但計(jì)算簡(jiǎn)便，在對(duì)精度要求不高時(shí)可以使用。3.洛氏硬度與布氏硬度的換算(1)對(duì)布氏壓痕和洛氏壓痕深度關(guān)系進(jìn)行分析，根據(jù)壓頭的應(yīng)力σHRC=σHB得出換算公式計(jì)算結(jié)果與國家標(biāo)準(zhǔn)實(shí)驗(yàn)值對(duì)照，換算式計(jì)算結(jié)果與標(biāo)準(zhǔn)實(shí)驗(yàn)值之誤差為±。(2)根據(jù)實(shí)際實(shí)驗(yàn)數(shù)據(jù)用線性回歸法得到公式公式誤差偏大，使用范圍偏小，但計(jì)算簡(jiǎn)便，在對(duì)精度要求不高的情況下可以使用。4.布氏硬度與維氏硬度的換算布氏硬度與維氏硬度的關(guān)系，同樣根據(jù)σHB=σHV得出公式此公式換算結(jié)果與國家標(biāo)準(zhǔn)換算值對(duì)照，換算誤差為±2HV。5.努氏硬度與洛氏硬度的換算因?yàn)榕嫌捕扰c洛氏硬度的對(duì)應(yīng)曲線類似于拋物線，故由曲線得出近似的換算公式為此公式比較精確，可以作為使用參考。因怕試樣與砧座接觸不好，測(cè)得的值不準(zhǔn)確。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="布氏硬度機(jī)現(xiàn)貨,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776461728515/549013.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(xué)功能杰出，淬透性低，水淬時(shí)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(yùn)用舉例:首要用于制作強(qiáng)度高的運(yùn)動(dòng)件，如透平機(jī)葉輪、壓縮機(jī)活塞。軸、齒輪、齒條、蝸桿等。焊接件留意焊前預(yù)熱，焊后消除應(yīng)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(qiáng)度、好的冷彎功能。運(yùn)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(jī)座、建筑結(jié)構(gòu)、橋梁等。3、40Cr——運(yùn)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(xué)功能、低溫沖擊韌度及低的缺口敏感性，淬透性杰出，油冷時(shí)可得到較高的疲勞強(qiáng)度，水冷時(shí)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(yīng)預(yù)熱到100～150℃，一般在調(diào)質(zhì)狀況下運(yùn)用，還能夠進(jìn)行碳氮共滲和高頻外表淬火處理。運(yùn)用舉例:調(diào)質(zhì)處理后用于制作中速、中載的零件，如機(jī)床齒輪、軸、蝸桿、花鍵軸、頂針套等。在更換壓頭或砧座時(shí)，注意接觸部位要擦干凈。全自動(dòng)布氏硬度機(jī)設(shè)備</p><p style="text-indent:25px">對(duì)圓試件一般要放在V形槽中測(cè)試。布氏硬度機(jī)現(xiàn)貨</p><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(jí)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(jí)，P級(jí)用于普通沖壓，S級(jí)用于深度沖壓，Z級(jí)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(jí)，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(jí)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(jí)別。在冷軋板力學(xué)性能的檢測(cè)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)。布氏硬度機(jī)現(xiàn)貨</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(chǎng)，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(shì)，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(tái)，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(chǎng)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: 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