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src="http://tyunfile.71360.com/UploadFile/shangcai/637127776392939453/6623374.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="loiutpb" 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>維式硬度機(jī)推薦,硬度機(jī)</p><p><span>***更新：</span>2021-01-21 00:14:27</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ym8co7n" 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="7vfmbtf" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="2a77elc" class="box"><p><p> 鋼材的硬度:金屬硬度(Hardness)的代號(hào)為H。按硬度試驗(yàn)方法的不同，維式硬度機(jī)推薦，●常規(guī)表示有布氏(HB)、洛氏(HRC)、維氏(HV)、里氏(HL)硬度等，其中以HB及HRC較為常用。●HB應(yīng)用范圍較廣，HRC適用于表面高硬度材料，如熱處理硬度等。兩者區(qū)別在于硬度計(jì)之測(cè)頭不同，布氏硬度計(jì)之測(cè)頭為鋼球，而洛氏硬度計(jì)之測(cè)頭為金剛石。●HV-適用于顯微鏡分析。維氏硬度(HV)以120kg以內(nèi)的載荷和頂角為136°的金剛石方形錐壓入器壓入材料表面，用材料壓痕凹坑的表面積除以載荷值，即為維氏硬度值(HV)。●HL手提式硬度計(jì)，測(cè)量方便，利用沖擊球頭沖擊硬度表面后，產(chǎn)生彈跳;利用沖頭在距試樣表面1mm處的回彈速度與沖擊速度的比值計(jì)算硬度，公式:里氏硬度HL=1000×VB(回彈速度)/VA(沖擊速度)?！衲壳?*常用的便攜式里氏硬度計(jì)用里氏(HL)測(cè)量后可以轉(zhuǎn)化為:布氏(HB)、洛氏(HRC)、維氏(HV)、肖氏(HS)硬度?；蛴美锸显碇苯佑貌际?HB)、洛氏(HRC)、維氏(HV)、里氏(HL)、肖氏(HS)測(cè)量硬度值。時(shí)代公司生產(chǎn)的TH系列里氏硬度計(jì)就有此功能，維式硬度機(jī)推薦，是傳統(tǒng)臺(tái)式硬度機(jī)的有益補(bǔ)充!"1，維式硬度機(jī)推薦、HB-布氏硬度:布氏硬度(HB)一般用于材料較軟的時(shí)候，如有色金屬、熱處理之前或退火后的鋼鐵。洛氏硬度(HRC)一般用于硬度較高的材料。硬度計(jì)是一種硬度測(cè)試儀器。維式硬度機(jī)推薦</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="維式硬度機(jī)推薦,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776392939453/6623374.jpg"></div><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(zhǎng)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。端淬硬度機(jī)哪里定制使壓頭或砧座與試驗(yàn)機(jī)接觸部分壓緊，接觸良好，以免影響試驗(yàn)結(jié)果的準(zhǔn)確性。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="維式硬度機(jī)推薦,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776623515625/1562834.jpg"></div><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(zhǎng)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(zhǎng)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,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,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。</p><p> 或回火溫度325~375℃，回火次數(shù)2~3次。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(hù)加熱,溫度760~780°C,時(shí)間10h,爐冷,硬度l96HBW,可順利實(shí)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,共晶碳化物等級(jí)≤3級(jí)好等溫溫度740~76o°C,時(shí)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,回?時(shí)間2h,或回?溫度325~375°C,回?2~3次CR12MOV模具鋼材典型應(yīng)?舉例編輯1)該鋼可?于制作材料厚度>3mm的沖裁模具復(fù)雜形狀的凸摸、凹摸、鑲塊.制作凸摸時(shí)建議硬度58~62HRC,制作凹模時(shí)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(shí)建議硬度為60~62HRC,制作凹模時(shí)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(fù)雜的凸模、凹模及鑲塊。制作凸模時(shí)建議硬度60~64HRC,制作凹模時(shí)議硬度60~64HRC5)?于制作鋁件冷擠壓摸的凸模、凹模。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="維式硬度機(jī)推薦,硬度機(jī)" src="http://tyunfile.71360.com/UploadFile/shangcai/637127776434951172/5750740.jpg"></div><p> CR12MOV模具鋼材淬透性、淬火回火后的硬度、強(qiáng)度、韌性比CR12高，直徑300~400mm以下的工作可完全淬透，淬火變形小，但高溫塑性較差。Cr12MoV多用于制造截面較大、形狀復(fù)雜、工作負(fù)荷較重的合種模具和工具。中文名CR12MOV模具鋼材磷P≤錳Mn≤硫S≤目錄1材料的特性2供貨狀態(tài)3適用范圍4化學(xué)成份5硬度6深冷處理7加硬處理8回火9淬火10對(duì)應(yīng)牌號(hào)11淬火規(guī)范12加工工藝13典型應(yīng)?舉例CR12MOV模具鋼材材料的特性編輯Cr12MoV鋼是碳鉬萊體鋼，其碳含量比Crl2鋼低很多,且加了鉬、釩元素,使鋼的熱加工性能、沖擊韌度和碳化物分布都得到了明顯改善。該鋼具有較好的耐磨性、淬透性、淬硬性、強(qiáng)韌性、熱穩(wěn)定性、抗壓強(qiáng)度,以及微變形、綜臺(tái)性能優(yōu)良和***的適應(yīng)性。受熱軟化溫度為520℃。截面尺寸在4mm以下可以完全淬透,該鋼的耐磨性能是低合金模具鋼的3~4倍,淬火體積變形小。淬硬深度:油淬200~300mm。在結(jié)晶過程中形成的共晶網(wǎng)狀碳化物(其中碳化物質(zhì)分?jǐn)?shù)為20%左右,共晶溫度約為1150°C),這些碳化物都很硬、很脆。雖經(jīng)開坯軋制,碳化物有一定程度的破碎,但碳化物沿軋制方向呈帶狀、?狀、塊狀、堆集狀分布。對(duì)洛氏硬度計(jì)校正結(jié)果，差值在±1之內(nèi)合格。維式硬度機(jī)推薦</p><p style="text-indent:25px">邵氏硬度計(jì)本硬度計(jì)（橡膠硬度計(jì)）能快速測(cè)定塑料、橡膠、合成樹脂等的邵氏硬度。維式硬度機(jī)推薦</p><p> 在強(qiáng)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(jìn)步了運(yùn)用壽數(shù).剩余應(yīng)力小.經(jīng)高溫回頭減少剩余應(yīng)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(xì)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(jī),鉆頭,鉸刀,沖頭號(hào)。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(zhǎng)壽數(shù)之切削東西。17、P20——一般要求的巨細(xì)塑膠模具,美國產(chǎn).可電蝕操作.出廠狀況預(yù)硬HB270-300.淬火硬度HRC52。18、718——高要求的巨細(xì)塑膠模具,瑞典產(chǎn).特別電蝕操作.出廠狀況預(yù)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(yù)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(yù)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(yùn)用壽數(shù)上比H13有顯著的進(jìn)步.熱沖壓模,鋁揉捏模。維式硬度機(jī)推薦</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(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(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>文章來源地址: 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