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src="http://tyunfile.71360.com/UploadFile/shangcai/637127776515878906/8922474.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="zg4g337" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shangcai/637127776515878906/8922474.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="o70dpj3" 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>便攜式硬度機(jī)整體實(shí)驗(yàn)室,硬度機(jī)</p><p><span>***更新：</span>2021-02-04 13:05:55</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="bd4ngfe" 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="tfzyxmr" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="joi3t2f" class="box"><p><p> 其中尤以鹽浴硫氰共滲好。CR12MOV模具鋼材制不銹鋼器皿拉伸模經(jīng)氣體氮碳共滲處理后,使用壽命達(dá)3萬件以上,較常規(guī)淬火、回火處理的同類模具壽命提高10倍以上。CR12MOV模具鋼材加硬處理編輯為提高模具壽命達(dá)到80萬模次以上，可對(duì)預(yù)硬鋼實(shí)施淬火加低溫回火的加硬方式來實(shí)現(xiàn)。淬火時(shí)先在500-600℃預(yù)熱2-4小時(shí)，便攜式硬度機(jī)整體實(shí)驗(yàn)室，然后在850-880℃保溫一定時(shí)間（至少2小時(shí)），放入油中冷卻至50-100℃出油空冷，淬火后硬度可達(dá)50-52HRC，為防止開裂應(yīng)立即進(jìn)行200℃低溫回火處理，回火后，便攜式硬度機(jī)整體實(shí)驗(yàn)室，硬度可保持48HRC以上CR12MOV模具鋼材回火編輯Cr12MoV鋼推薦的回火規(guī)范方案淬火溫度/℃回火用途加熱溫度/℃介質(zhì)硬度HRCⅠⅡⅢ1020~1040消除應(yīng)力去除應(yīng)力，降低硬度去除應(yīng)力，降低硬度150~170200~275400~425油或硝鹽——61~6357~5955~57ⅣⅤⅥ1115~1130去除應(yīng)力及形成二次硬化去除應(yīng)力及形成二次硬化去除應(yīng)力及形成二次硬化510~520℃多次回火-78℃冷處理加510~520℃一次回火-78℃冷處理加一次510~520℃回火，便攜式硬度機(jī)整體實(shí)驗(yàn)室，再-78℃冷處理———60~6160~6161~6CR12MOV模具鋼材淬火編輯方案***次預(yù)熱/℃第二次預(yù)熱/℃淬火溫度/℃冷卻硬度。硬度高于HRB100時(shí)，應(yīng)采用HRC標(biāo)度進(jìn)行測(cè)試。便攜式硬度機(jī)整體實(shí)驗(yàn)室</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="便攜式硬度機(jī)整體實(shí)驗(yàn)室,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776515878906/8922474.jpg"></div><p> 原于能工業(yè)用設(shè)備8、Cr12——常用的冷作模具鋼（美國鋼號(hào)D3，日本鋼號(hào)SKD1)特性和運(yùn)用:Cr12鋼是一種運(yùn)用***的冷作模具鋼，屬高碳高鉻類型的萊氏體鋼。該鋼具有較好的淬透性和杰出的耐磨性；由于Cr12鋼碳含量高達(dá)，所以沖擊韌度較差、易脆裂，并且容易形成不均勻的共晶碳化物；Cr12鋼由于具有杰出的耐磨性，多用于制作受沖擊負(fù)荷較小的要求高耐磨的冷沖模、沖頭、下料模、冷鐓模、冷揉捏模的沖頭和凹模、鉆套、量規(guī)、拉絲模、壓印模、搓絲板、拉深模以及粉末冶金用冷壓模等9、DC53——常用的日本進(jìn)口冷作模具鋼特性和運(yùn)用:**耐性冷作模具鋼，日本大同特殊鋼（株）廠家鋼號(hào)。高溫回火后具有高硬度、高耐性，線切割性杰出。用于精細(xì)冷沖壓模、拉伸模、搓絲模、冷沖裁模、沖頭號(hào)10、SM45——一般碳素塑料模具鋼（日本鋼號(hào)S45C）10、DCCr12MoV——耐磨鉻鋼國產(chǎn).較Cr12鋼含碳量低,且加入了Mo和V,碳化物不均勻有所改進(jìn),MO能減輕碳化物偏析并進(jìn)步淬透性,V能細(xì)化晶粒添加耐性.此鋼有高淬透性,截面在400mm以下能夠徹底淬透,在300~400℃仍可堅(jiān)持杰出的硬度和耐磨性,較Cr12有高的耐性,淬火時(shí)體積改變小,又有高的耐磨性和杰出的歸納機(jī)械功能.所以能夠制作截面大,形狀雜亂。便攜式硬度機(jī)整體實(shí)驗(yàn)室水果硬度計(jì)通過測(cè)量水果的硬度來判斷水果的成熟度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="便攜式硬度機(jī)整體實(shí)驗(yàn)室,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776411250000/3892454.jpg"></div><p> 否則應(yīng)將吊環(huán)掛于重點(diǎn)刀刃上，校直吊架吊桿；（5）主軸與試臺(tái)平臺(tái)垂直度，主軸軸線與升降絲桿軸線同軸度超差，應(yīng)分析視其情況進(jìn)行主軸與試臺(tái)平臺(tái)垂直度、主軸軸線與升降絲桿軸線同軸度的調(diào)整。4、硬度計(jì)反復(fù)加卸載荷造成這種故障的原因及排除方法：（1）按鍵開關(guān)頂桿過長，轉(zhuǎn)向開關(guān)A、B觸點(diǎn)與A1、B1觸點(diǎn)不能脫開，應(yīng)調(diào)節(jié)頂桿長度并固定之；（2）換向開關(guān)安裝位置不當(dāng)，活動(dòng)擋板不能觸動(dòng)換向開關(guān)上的銷子，造成換向開關(guān)不換向，應(yīng)調(diào)整換向開關(guān)的安裝位置。5、硬度計(jì)載荷全部加上時(shí)停機(jī)此種故障原因?yàn)閾Q向開關(guān)接觸點(diǎn)有燒傷、燒蝕現(xiàn)象，造成接觸點(diǎn)接觸不良，應(yīng)對(duì)接觸點(diǎn)加以清理打磨或更換新的換向開關(guān)。6、按鍵開關(guān)按下，硬度計(jì)不動(dòng)作，但有嗡嗡的電流聲此種故障原因?yàn)殡姍C(jī)缺相，應(yīng)檢查電源是否正常，電源插頭是否插好，電纜線是否有斷路，電源開關(guān)是否完好，電機(jī)接線是否接牢，電機(jī)線圈是否燒壞一組以及換向開關(guān)觸點(diǎn)接觸是否良好等，應(yīng)視其情況分別予以排除。</p><p> 表3-1維氏硬度試驗(yàn)的三種方法維氏硬度試驗(yàn)可選用的試驗(yàn)力值很多，見表3-2。表3-2推薦的維氏硬度試驗(yàn)力試驗(yàn)力的選擇要根據(jù)試樣種類、試樣厚度和預(yù)期的硬度范圍而定。標(biāo)準(zhǔn)規(guī)定，試樣或試驗(yàn)層的厚度至少為壓痕對(duì)角線長度的。試驗(yàn)后試樣背面不應(yīng)出現(xiàn)可見的變形痕跡。維氏硬度試驗(yàn)的優(yōu)點(diǎn)維氏硬度試驗(yàn)的壓痕是正方形，輕廓清晰，對(duì)角線測(cè)量準(zhǔn)確，因此，維氏硬度試驗(yàn)是常用硬度試驗(yàn)方法中精度高的，同時(shí)它的重復(fù)性也很好，這一點(diǎn)比布氏硬度計(jì)優(yōu)越。維氏硬度試驗(yàn)測(cè)量范圍寬廣，可以測(cè)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(gè)維氏硬度單位）到很硬的材料（3000個(gè)維氏硬度單位）都可測(cè)量。維氏硬度試驗(yàn)大的優(yōu)點(diǎn)在于其硬度值與試驗(yàn)力的大小無關(guān)，只要是硬度均勻的材料，可以任意選擇試驗(yàn)力，其硬度值不變。這就相當(dāng)于在一個(gè)很寬廣的硬度范圍內(nèi)具有一個(gè)統(tǒng)一的標(biāo)尺。這一點(diǎn)又比洛氏硬度試驗(yàn)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(yàn)和布氏硬度試驗(yàn)結(jié)果會(huì)得到近似的硬度值。例如，當(dāng)硬度值為400以下時(shí)，HV≈HB，如圖3-2所示。維氏硬度試驗(yàn)的試驗(yàn)力可以小到10gF，壓痕非常小，特別適合測(cè)試薄小材料。維氏硬度試驗(yàn)的缺點(diǎn)維氏硬度試驗(yàn)效率低。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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="便攜式硬度機(jī)整體實(shí)驗(yàn)室,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776404941406/5970398.jpg"></div><p> 表四：1/8硬、1/4硬、1/2硬和全硬材料的拉伸試驗(yàn)值調(diào)質(zhì)區(qū)分符號(hào)抗拉強(qiáng)度/MPa伸長率/%**小試樣1/8硬8290~410255號(hào)試樣軋制方向1/4硬4370~490101/2硬2440~590—硬1≥550—表五：1/8硬、1/4硬、1/2硬和全硬狀態(tài)材料的硬度值調(diào)質(zhì)區(qū)分符號(hào)HRBHV1/8硬1/4硬8450~7165~8095~130115~1501/2硬硬2174~89≥85135~185≥170注：HRB和HV，*用其中之一。英國標(biāo)準(zhǔn)BS1449/《厚板、薄板和鋼帶***部分：碳素鋼和碳錳鋼厚板、薄板和鋼帶——具有成形性能的冷軋窄鋼帶技術(shù)條件》對(duì)冷軋薄板分級(jí)為CS1（鋁***穩(wěn)定化超深沖）、CS2（超深沖）、CS3（深沖）、CS4（沖壓或成形）、CS14（折邊）、CS15（商品級(jí)）。這項(xiàng)標(biāo)準(zhǔn)的力學(xué)性能要求如表六所示：表六：鋼材交貨時(shí)的力學(xué)性能軋制狀態(tài)和級(jí)別退火（A）或平整冷軋（SP）狀態(tài)硬度HV1)2)***屈服強(qiáng)度Re1)/MPa**小抗拉強(qiáng)度Rm1)/MPa**小伸長率A1)/%**小彎心直徑1)（180o彎曲）原始標(biāo)距LO50mm80mmCS1A（36）0aSP（34）0aCS2A（34）0aSP（34）0aCS3A100（140）（280）（34）（32）0aSP110（140）（280）（34）（32）0aCS4A105（140）（280）——0aSP115（140）（280）——0a注：1）窄鋼帶交貨應(yīng)符合，或者硬度和彎曲試驗(yàn)，或者拉伸和彎曲試驗(yàn)。差值在±2之內(nèi)的穩(wěn)定數(shù)值，可以給出修正值。工業(yè)硬度機(jī)技術(shù)參數(shù)</p><p style="text-indent:25px">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。便攜式硬度機(jī)整體實(shí)驗(yàn)室</p><p> 比如食鹽、汗跡、海水、海風(fēng)、土壤等等。不銹鋼在氯離子存在下的環(huán)境中，腐蝕很快，甚至超過普通的低碳鋼。所以對(duì)不銹鋼的使用環(huán)境有要求，而且需要經(jīng)常擦拭，除去灰塵，保持清潔干燥。（這樣就可以給他定個(gè)“使用不當(dāng)”。）美國有一個(gè)例子：某企業(yè)用一橡木容器盛裝某含氯離子的溶液，該容器已使用近百余年，上個(gè)世紀(jì)九十年代計(jì)劃更換，因橡木材料不夠現(xiàn)代，采用不銹鋼更換后16天容器因腐蝕泄漏。2.沒有經(jīng)過固溶處理。合金元素沒有溶入基體，致使基體組織合金含量低，抗蝕性能差。3.這種不含鈦和鈮的材料有天生的晶間腐蝕的傾向。加入鈦和鈮，再配以穩(wěn)定處理，可以減少晶間腐蝕。從金相學(xué)角度分析，因?yàn)椴讳P鋼含有鉻而使表面形成很薄的鉻膜，這個(gè)膜隔離開與鋼內(nèi)侵入的氧氣起耐腐蝕的作用。為了保持不銹鋼所固有的耐腐蝕性，鋼必須含有12%以上的鉻。304是一種通用性的不銹鋼，它***地用于制作要求良好綜合性能（耐腐蝕和成型性）的設(shè)備和機(jī)件。304不銹鋼是按照美國ASTM標(biāo)準(zhǔn)生產(chǎn)出來的不銹鋼的一個(gè)牌號(hào)。304相當(dāng)于我國的0Cr19Ni9(0Cr18Ni9)不銹鋼。304含鉻19%，含鎳9%。便攜式硬度機(jī)整體實(shí)驗(yàn)室</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: http://www.cdcfah.com/cp/3160653.html</p></div></div></div></div></div><div id="2o8mwzy" class="page-right twoColRt"><div id="2hys8ga" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="zudxccf" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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