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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>自動(dòng)硬度機(jī)配件,硬度機(jī)</p><p><span>***更新：</span>2021-01-28 05:04:52</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="dtlard7" 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(huà): </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(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="lwyi3ce" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="yugdse2" class="box"><p><p> 在工業(yè)生產(chǎn)中，模具鋼是模具工業(yè)的主體材料，模具的使用壽命和制成零件的精度、質(zhì)量、外觀性能，除與模具的設(shè)計(jì)技術(shù)、制造精度，以及機(jī)床精度和制造操作有關(guān)外，正確地選用模具材料和正確地執(zhí)行熱處理工藝也是至關(guān)重要的，自動(dòng)硬度機(jī)配件。模具的熱處理質(zhì)量和使用性能通常都以硬度作為判斷的依據(jù)硬度是模具材料和成品模具的重要性能指標(biāo)。模具在工作時(shí)的受力狀態(tài)是復(fù)雜的，如熱作模具通常是在交變的溫度場(chǎng)下承受交變應(yīng)力作用，因此它應(yīng)具有良好的阻止模具轉(zhuǎn)變成較軟或塑性狀態(tài)的能力，并且在長(zhǎng)期工作環(huán)境下仍保持模具的形狀和尺寸精度不變。一般成品模具的硬度，冷作模具常選擇在59-60HRC，熱作模具常選擇在48HRC左右。耐磨性也是成品模具的重要性能指標(biāo)。零件成形時(shí)金屬和模具型腔表面發(fā)生相對(duì)運(yùn)動(dòng)，磨損了型腔表面，至使模具的尺寸形狀、精度和表面粗糙度發(fā)生變化而失效。模具的耐磨性是由模具的熱處理，特別是表面熱處理決定的，評(píng)估模具耐磨性好壞的主要依據(jù)也是硬度。模具鋼用硬度計(jì)測(cè)試主要針對(duì)三種情況，即模具鋼材料的硬度檢測(cè)，經(jīng)過(guò)熱處理的半成品模具的檢測(cè)硬度，自動(dòng)硬度機(jī)配件，要求高耐磨性的模具表面熱處理后的表面硬度檢測(cè)，自動(dòng)硬度機(jī)配件。模具鋼材料主要是經(jīng)過(guò)鍛造的鋼板、鋼塊或鋼棒，一般以退火狀態(tài)供貨。韋氏硬度計(jì)（HW）適用于鋁合金類(lèi)產(chǎn)品的韋氏硬度值測(cè)量。自動(dòng)硬度機(jī)配件</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="自動(dòng)硬度機(jī)配件,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776448945312/1604205.jpg"></div><p> 金屬硬度材料分選儀，多能存儲(chǔ)20個(gè)不同的檢測(cè)參數(shù)。硬度檢測(cè)方法選用對(duì)于HBSlt;450的金屬材料，包括退火、正火、調(diào)質(zhì)鋼，金屬硬度材料分選儀價(jià)格，各種鑄鐵以及多種有色金屬及其合金（包括鋁、銅、鎂、鉛、鋅、錫等）用布氏硬度檢測(cè)方法比較合理。因?yàn)椴际戏ㄓ卸喾N檢測(cè)力和壓頭選擇，金屬硬度材料分選儀出售，壓痕直徑大，能測(cè)出較大范圍內(nèi)金屬各組成部分的綜合性能，而不易受個(gè)別相或局部組織的影響，數(shù)據(jù)較準(zhǔn)確穩(wěn)定，復(fù)現(xiàn)性較好。用洛氏硬度檢測(cè)法測(cè)得的金屬材料硬度值與布氏和維氏法的結(jié)果比較，精度較低，這是因?yàn)槁迨蠙z測(cè)法是以測(cè)量壓痕深度間接反映硬度值的高低，檢測(cè)點(diǎn)很小，金屬硬度材料分選儀報(bào)價(jià)，且每一洛氏單位*為，易于出現(xiàn)誤差。但洛氏檢測(cè)法方便、迅速，特別適用于鋼鐵材料的熱處理工藝過(guò)程和終產(chǎn)品檢測(cè)。自動(dòng)硬度機(jī)配件洛氏硬度（HR）當(dāng)HB>450或者試樣過(guò)小時(shí)，不能采用布氏硬度試驗(yàn)而改用洛氏硬度計(jì)量。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="自動(dòng)硬度機(jī)配件,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776406357422/7324439.jpg"></div><p> 里氏硬度是由瑞士LEEB博士1978年***提出的全新的硬度測(cè)量方法，它的定義是：用規(guī)定質(zhì)量的沖擊體在彈力作用下以一定速度沖擊試樣表面，用沖頭在距離試樣表面1mm處的回彈速度與沖擊速度之比計(jì)算出的數(shù)值，因LEEB博士提出而得名，故而叫里氏硬度。里氏硬度計(jì)的計(jì)算公式如下：HL=1000×Vb/Va,式中：HL————里氏硬度符號(hào)Va————球頭的沖擊速度，m/s；Vb————球頭的反彈速度，m/s?！静际嫌捕取坎际嫌捕龋˙rinellHardness）的測(cè)定原理是用一定大小的試驗(yàn)力F(N)（力的單位通常為公斤力kgf，注：1kgf=，kgf即一千克的力的意思），把直徑為D（mm）的淬火鋼球或硬質(zhì)合金球壓入被測(cè)金屬的表面（圖1），保持規(guī)定時(shí)間后卸除試驗(yàn)力，用讀數(shù)顯微鏡測(cè)出壓痕平均直徑d(mm)，然后按公式求出布氏硬度HB值，或者根據(jù)d從已備好的布氏硬度表中查出HB值。</p><p> 什么是洛氏硬度（HRCHRBHRA）洛氏硬度計(jì)洛氏硬度計(jì)（臺(tái)式硬度計(jì)）為在規(guī)定條件下，將壓頭（金剛石圓錐、鋼球或硬質(zhì)合金球）分2個(gè)步驟壓入試樣表面。卸除主試驗(yàn)力后，在初試驗(yàn)力下測(cè)量壓痕殘余深度h。以壓痕殘余深度ｈ**硬度的高低。洛氏硬度試驗(yàn)機(jī)采用洛氏(ROCKWELL)測(cè)量原理，用于碳鋼、合金鋼、鑄鐵、有色金屬及工程塑料等材料的硬度檢測(cè)，具有測(cè)試精度高，測(cè)量范圍寬，主試驗(yàn)力自動(dòng)加卸載，測(cè)量結(jié)果數(shù)字顯示并自動(dòng)打印或與外部計(jì)算機(jī)通訊等特點(diǎn)?？蓮V泛應(yīng)用于計(jì)量、機(jī)械制造、冶金、化工、建材等行業(yè)的檢測(cè)、科研與生產(chǎn)。洛氏硬度計(jì)原理在規(guī)定條件下，將壓頭（金剛石圓錐、鋼球或硬質(zhì)合金球）分2個(gè)步驟壓入試樣表面。卸除主試驗(yàn)力后，在初試驗(yàn)力下測(cè)量壓痕殘余深度h。以壓痕殘余深度ｈ**硬度的高低。洛氏硬度試驗(yàn)原理如圖２－１所示。1—在初始試驗(yàn)力F0下的壓入深度；2—在總試驗(yàn)力F0+F1下的壓入深度；3—去除主試驗(yàn)力F1后的彈性回復(fù)深度；4—?dú)堄鄩喝肷疃萮；5—試樣表面；6—測(cè)量基準(zhǔn)面；7—壓頭位置圖２－１洛氏硬度試驗(yàn)原理圖洛氏硬度值按下式計(jì)算：N－常數(shù)，對(duì)于A、C、D、N、T標(biāo)尺，N=100；其他標(biāo)尺，N=130；h－殘余壓痕深度，mm；S－常數(shù)，對(duì)于洛氏硬度，S=。加載完畢加載手柄應(yīng)放在卸載位置，以免儀器長(zhǎng)期處于負(fù)荷狀態(tài)，發(fā)生塑性變形，影響測(cè)量精確度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="自動(dòng)硬度機(jī)配件,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776484013672/8680701.jpg"></div><p> 7)如果在目鏡中觀察到的成像呈模糊狀或一半清晰一半模糊，則說(shuō)明光源中心偏離系統(tǒng)光路中心，需調(diào)節(jié)燈泡的中心位置。如果視場(chǎng)太暗或太亮可通過(guò)操作面板(6)上的軟鍵調(diào)節(jié)光源強(qiáng)弱。(8)如果想觀察試塊或試樣上的較大視場(chǎng)范圍，可將物鏡壓頭轉(zhuǎn)換手柄逆時(shí)針轉(zhuǎn)至主體前方，此時(shí)，光學(xué)系統(tǒng)總放大倍率為100X，處于觀察狀態(tài)。當(dāng)轉(zhuǎn)換1OX和40X物鏡時(shí)聚焦面有微量變化，可微調(diào)升降絲桿進(jìn)行聚焦。(9)將轉(zhuǎn)換手柄逆時(shí)針轉(zhuǎn)動(dòng)，使壓頭主軸處于主體前方，此時(shí)壓頭前列(1)與聚焦好的平面之間間隙約為～。當(dāng)測(cè)量不規(guī)則的試樣時(shí)要小心，防止壓頭碰及試樣，損壞壓頭。(10)根據(jù)試驗(yàn)要求在操作面板上鍵入試驗(yàn)力延時(shí)保荷時(shí)間，每鍵入一次變化為五秒，[十]為加，[－]為減。(11)按下操作面板(6)上的[START]鍵，此時(shí)加試驗(yàn)力，[LOADING]LED指示燈亮。(12)試驗(yàn)力保持階段時(shí)，延時(shí)[DWELL]LED亮，此時(shí)LCD屏上T按所選擇時(shí)間倒計(jì)數(shù)，延時(shí)時(shí)間到，試驗(yàn)力卸除，卸試驗(yàn)力(UNLOADING)LED亮。在LED未滅前，不要轉(zhuǎn)動(dòng)壓頭測(cè)量轉(zhuǎn)換手柄，否則會(huì)影響壓痕測(cè)量精度，甚至損壞儀器。(13)將轉(zhuǎn)換手柄順時(shí)針轉(zhuǎn)動(dòng)，使40X物鏡處于主體前方。這時(shí)就可在測(cè)微目鏡中測(cè)量對(duì)角線(xiàn)長(zhǎng)度。(14)先將測(cè)微目鏡右邊的鼓輪順時(shí)針旋轉(zhuǎn)。硬度試驗(yàn)是機(jī)械性能試驗(yàn)中**簡(jiǎn)單易行的一種試驗(yàn)方法。自動(dòng)硬度機(jī)配件</p><p style="text-indent:25px">硬度計(jì)本身會(huì)產(chǎn)生兩種誤差：一是其零件的變形、移動(dòng)造成的誤差；二是硬度參數(shù)超出規(guī)定標(biāo)準(zhǔn)所造成的誤差。自動(dòng)硬度機(jī)配件</p><p> 表面熱處理分為兩大類(lèi)，一類(lèi)是表面淬火回火熱處理，另一類(lèi)是化學(xué)熱處理，其硬度檢驗(yàn)方法如下：1、表面淬火回火熱處理表面淬火，回火熱處理通常用感應(yīng)加熱或火焰加熱的方式進(jìn)行。主要技術(shù)參數(shù)是表面硬度、局部硬度和有效硬化層深度。硬度檢測(cè)可采用維氏硬度計(jì)，也可采用洛氏或表面洛氏硬度計(jì)。試驗(yàn)力（標(biāo)尺）的選擇與有效硬化層深度和工件表面硬度有關(guān)。這里涉及到三種硬度計(jì)。維氏硬度計(jì)是測(cè)試熱處理工件表面硬度的重要手段，它可選用～100KG的試驗(yàn)力，測(cè)試薄至，它的精度是高的，可分辨出熱處理工件表面硬度的微小差別。另外，有效硬化層深度也要由維氏硬度計(jì)來(lái)檢測(cè)，所以，對(duì)于進(jìn)行表面熱處理加工或大量使用表面熱處理工件的單位，配備一臺(tái)維氏硬度計(jì)是有必要的。表面洛氏硬度計(jì)也是十分適于測(cè)試表面淬火工件硬度的，表面洛氏硬度計(jì)有三種標(biāo)尺可以選擇?？梢詼y(cè)試有效硬化深度超過(guò)。盡管表面洛氏硬度計(jì)的精度沒(méi)有維氏硬度計(jì)高，但是作為熱處理工廠(chǎng)質(zhì)量管理和合格檢查的檢測(cè)手段，已經(jīng)能夠滿(mǎn)足要求。況且它還具有操作簡(jiǎn)單、使用方便、價(jià)格較低，測(cè)量迅速、可直接讀取硬度值等特點(diǎn)，利用表面洛氏硬度計(jì)可對(duì)成批的表面熱處理工件進(jìn)行快速無(wú)損的逐件檢測(cè)。自動(dòng)硬度機(jī)配件</p><p> 上海尚材試驗(yàn)機(jī)有限公司是專(zhuān)業(yè)生產(chǎn)各種類(lèi)型金屬、非金屬材料硬度計(jì)的公司，是ISO9001-2015國(guó)際質(zhì)量體系認(rèn)證企業(yè)，是上海市****，是全國(guó)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(guó)家標(biāo)準(zhǔn)的修編。公司主要開(kāi)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(guó)際市場(chǎng)，深受?chē)?guó)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(zhuān)業(yè)顧問(wèn)團(tuán)隊(duì)。20畝生產(chǎn)基地，5棟標(biāo)準(zhǔn)工業(yè)廠(chǎng)房，坐擁長(zhǎng)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(chē)間，CNC、數(shù)控機(jī)床等各類(lèi)加工設(shè)備逾50臺(tái)，專(zhuān)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(yíng)銷(xiāo)、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(guó)制造2025”強(qiáng)國(guó)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(guó)民營(yíng)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(lái)源地址: http://m.cdcfah.com/cp/3043843.html</p></div></div></div></div></div><div id="jsu7v40" class="page-right twoColRt"><div id="azwy2j7" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="t8bkdub" class="recomPic likePro"><a href="http://m.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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="p3p4t9m" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" 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