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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ca8ubtq" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776423134765/8820352.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="cuokbsz" 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>洛式硬度機(jī)生產(chǎn)廠家,硬度機(jī)</p><p><span>***更新：</span>2021-01-04 16:07:35</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="uczqxzq" 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="3ycelht" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="l3l74iu" class="box"><p><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，洛式硬度機(jī)生產(chǎn)廠家，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，洛式硬度機(jī)生產(chǎn)廠家。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，洛式硬度機(jī)生產(chǎn)廠家。這時(shí)就可在測(cè)微目鏡中測(cè)量對(duì)角線長(zhǎng)度。(14)先將測(cè)微目鏡右邊的鼓輪順時(shí)針旋轉(zhuǎn)。在更換壓頭或砧座時(shí)，注意接觸部位要擦干凈。洛式硬度機(jī)生產(chǎn)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="洛式硬度機(jī)生產(chǎn)廠家,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776423134765/8820352.jpg"></div><p> 相當(dāng)于HB225－650，若硬度高于此范圍則用洛氏硬度A標(biāo)尺HRA；若硬度低于此范圍則用洛氏硬度B標(biāo)尺HRB。一般來(lái)說(shuō)，現(xiàn)在實(shí)用的鋼材硬度都在HRC50-60之間，超過(guò)60的***雖然硬，但是太脆，容易在砍硬物時(shí)繃斷。那么問(wèn)題來(lái)了，為什么有的鋼材硬度可以達(dá)到HRC60以上？這是因?yàn)楹饬康秳Φ男阅艹擞捕冗€有韌性，適當(dāng)?shù)南鳒p韌性，可以增加硬度。比如火車彈簧鋼，這種鋼材本身硬度就很高，經(jīng)過(guò)淬火處理之后，硬度就可以高達(dá)62，同時(shí)增加一定的厚度，就可以增加一定的韌性，使其性能出眾，鋒利無(wú)比。但它也有其短處，比如火車彈簧鋼只能做短刀，不能做長(zhǎng)刀，不然就“過(guò)剛易折”了。切豬皮一點(diǎn)不費(fèi)勁這么厚的豬肉直接見(jiàn)底擋風(fēng)玻璃有啥用一起來(lái)見(jiàn)證這邊超高硬度的熱血獵刀吧！加高型硬度機(jī)使用方法硬度低于HRC20時(shí)應(yīng)用HRB標(biāo)度進(jìn)行測(cè)試。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="洛式硬度機(jī)生產(chǎn)廠家,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776448945312/1604205.jpg"></div><p> 4按實(shí)驗(yàn)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(cè)方法，如超聲波、磁矯頑力等等。11種常見(jiàn)硬度試驗(yàn)方法1洛氏硬度（HR）用一個(gè)金剛石圓錐（HRC）或經(jīng)硬化的（鎢）鋼球壓頭（HRB等），以10kgf的預(yù)載荷和60,100,或150kgf的主試驗(yàn)力壓入被測(cè)材料表面。2表面洛氏硬度（HR）依據(jù)設(shè)定的標(biāo)尺，用一個(gè)金剛石圓錐或經(jīng)硬化的（鎢）鋼球壓頭壓入被測(cè)材料表面。表面洛氏測(cè)量應(yīng)用的力值較小，產(chǎn)生的壓痕較淺，多用于相對(duì)易碎和很薄的材料中。預(yù)載荷為3kgf，主試驗(yàn)力為15,30,或45kgf。3維氏硬度（HV）以1-120kgf的試驗(yàn)力，將相對(duì)面夾角為136°的方錐形金剛石壓頭壓入被測(cè)材料表面。壓痕則應(yīng)用顯微鏡或USB攝像頭來(lái)進(jìn)行視頻觀測(cè)及測(cè)量。4顯微維氏硬度（HV）通常以不超過(guò)1kgf的試驗(yàn)力，將相對(duì)面夾角為136°的方錐形金剛石壓頭壓入被測(cè)材料表面。壓痕則應(yīng)用精密顯微鏡或**辨率的USB攝像頭來(lái)進(jìn)行視頻觀測(cè)及測(cè)量。600x的放大倍數(shù)是**常見(jiàn)的，1000x的放大倍數(shù)正愈加被***的應(yīng)用。5努氏硬度（HK）通常以不超過(guò)1kgf的試驗(yàn)力，將細(xì)長(zhǎng)的金剛石椎體壓入被測(cè)材料表面。壓痕則應(yīng)用精密顯微鏡或**辨率的USB攝像頭來(lái)進(jìn)行視頻觀測(cè)及測(cè)量。</p><p> HRC）介質(zhì)介質(zhì)溫度/℃在介質(zhì)中冷卻隨后ⅠⅡⅢⅣⅤ550~660840~860950~10001020~10401020~10401115~11301115~1130油油熔融硝鹽油熔融硝鹽20~6020~60400~55020~60400~450至室溫至油溫5~10min至油溫5~10min空冷空冷空冷空冷空冷58~6262~6362~6342~5042~50注：1.方案Ⅱ、Ⅲ用于要求獲得很高的力學(xué)性能及變形較小的工件，如螺紋滾子、搓絲板、形狀復(fù)雜受沖擊負(fù)荷的模具等；2.方案Ⅳ、Ⅴ用于要求獲得紅硬性及耐磨性的工件，但力學(xué)性能較差，尺寸變形較大，如450℃以下工作的熱沖模等；3.這種鋼對(duì)脫碳很敏感，預(yù)熱和加熱用的鹽浴必須經(jīng)過(guò)充分的脫氧后再使用；若在普通電爐中加熱可將工件裝入箱內(nèi)，填充以滲碳劑或生鐵粉（這時(shí)工件可能有少許增碳現(xiàn)象，硬度可提高HRC1~2）。表2-3-7淬火狀態(tài)的組織比例淬火方案冷卻碳化物/%馬氏體/%奧氏體/%Ⅰ、Ⅱ油、硝鹽1273~6820~23CR12MOV模具鋼材對(duì)應(yīng)牌號(hào)編輯國(guó)標(biāo)：cr12mov臺(tái)標(biāo)：skd11德標(biāo)：DIN：x165crmov12日標(biāo)：skd11韓標(biāo)：STD11意大利標(biāo)準(zhǔn)：x165crmow12ku瑞典標(biāo)準(zhǔn)：2310西班牙標(biāo)準(zhǔn)：x160crmov12美標(biāo)：x12mCR12MOV模具鋼材淬火規(guī)范編輯普通淬火、回火規(guī)范：淬火溫度1000~1050℃，淬油或淬氣，硬度≥60HRC；回火溫度160~180℃，回火時(shí)間2h。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="洛式硬度機(jī)生產(chǎn)廠家,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776623203125/5680350.jpg"></div><p> (1)轉(zhuǎn)動(dòng)試驗(yàn)力變換手輪，使試驗(yàn)力符合選擇要求。旋轉(zhuǎn)試驗(yàn)力變換手輪時(shí)，應(yīng)小心緩慢地進(jìn)行，防止過(guò)快產(chǎn)生沖擊。(2)打開(kāi)電源開(kāi)關(guān)(22),指示燈(21)及光源燈(10)亮。LCD屏上顯示此時(shí)試驗(yàn)力變換手輪所指示的試驗(yàn)力，并顯示94年8月8日初始化日期。(3)這時(shí)光標(biāo)在94年下顯示，按下[TIME]或[TIME-]鍵,可遞增或遞減，每按一次遞增或遞減5個(gè)數(shù)字。年份選擇后，按下[SPECI]鍵選擇月份，這時(shí)光標(biāo)在8月下顯示，數(shù)次按下[TIME]或[TIME-]鍵選擇月份.再按下[SPECI]，這時(shí)光標(biāo)在8日下顯示，如上所述選擇日期。當(dāng)測(cè)試結(jié)果輸出打印時(shí)，相應(yīng)打出所鍵入的年月日期。如不需打印日期時(shí)，可連按三次[SPECI]鍵。(4)日期鍵入后，LCD屏上顯示D1、D2、HV、N等字母，即表示儀器己進(jìn)入工作狀態(tài)。(5)轉(zhuǎn)動(dòng)物鏡、壓頭轉(zhuǎn)換手柄(16)，使40X物鏡(18)處于主體前方位置。(光學(xué)系統(tǒng)總放大倍率為400×，處于測(cè)量狀態(tài)。)(6)將標(biāo)準(zhǔn)試塊或試樣安放在試臺(tái)上，轉(zhuǎn)動(dòng)旋輪(20)使試臺(tái)上升。眼睛接近測(cè)微目鏡觀察。當(dāng)試樣離物鏡下端2～3mm時(shí)，在目鏡的視場(chǎng)中心出現(xiàn)明亮光斑，說(shuō)明聚焦面即將來(lái)到，此時(shí)應(yīng)緩慢微量上升，直至在目鏡中觀察到試塊或試樣表面的清晰成像，這時(shí)聚焦過(guò)程完成。。數(shù)顯洛氏硬度計(jì)適用于黑色金屬、有色金屬和非金屬材料的硬度測(cè)定。加高型硬度機(jī)使用方法</p><p style="text-indent:25px">巴柯?tīng)?(Barcol) 硬度 ( 簡(jiǎn)稱巴氏硬度 ) **早由美國(guó)Barber-Colman 公司提出，是近代國(guó)際上***采用的一種硬度計(jì)。洛式硬度機(jī)生產(chǎn)廠家</p><p> 硬度，**常用的指標(biāo)有三種：布氏硬度，洛氏硬度和維氏硬度。布氏硬度的含意：用一定直徑的淬硬鋼球，在一定的載荷（p）作用下，壓入試件表面，停留一段時(shí)間，然后除去載荷，測(cè)量壓痕的面積，壓痕越小表示抵抗塑性變形能力（即硬度）越大，越大硬度越小，用“HB”來(lái)表示。維氏硬度的含意：在規(guī)定的外加載荷下，將鋼球或金剛石壓頭垂直壓入試件表面，產(chǎn)生壓痕，測(cè)試壓痕深度，利用洛氏硬度計(jì)算公式HR=（K-H)/C便可計(jì)算出洛氏硬度。簡(jiǎn)單說(shuō)就是壓痕越淺，HR值越大，材料硬度越高。用"HRC"來(lái)表示。比如HRC60，即**在試驗(yàn)載荷為150kg下，使用頂角為120度的金剛石圓錐壓頭時(shí)，試件的壓痕深度為。布氏硬度的含意：是利用頂角為136度的金剛石四方角錐體作壓頭，在一定的載荷下壓入試件表面，留下方形壓痕，根據(jù)對(duì)角線的長(zhǎng)度，即可查出硬度值，用“HV”來(lái)表示。一般都是用洛氏硬度來(lái)衡量刀刃的硬度，也就是HRC值，通常一把好刀的刀刃硬度應(yīng)在洛氏威爾硬度50s以上，60s以下，簡(jiǎn)而言之，硬度越高，抗磨損能力越高，但脆性也越大。國(guó)外dao具用鋼全集美國(guó)**刀常用不銹鋼性能差不多是BG42（克瑞斯用得**多）約等于VG10>154CM（蝴蝶，微技術(shù)，MOG用得**多）>ATS34。洛式硬度機(jī)生產(chǎn)廠家</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(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)，深受國(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(yíng)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(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: 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