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id="yao0yye" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shbairuo/637436655560968453/1304188.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="yuk0ykk" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shbairuo/637436655560968453/1304188.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="imksguy" 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>浙江鋼軌彎曲疲勞試驗(yàn)機(jī),疲勞試驗(yàn)機(jī)</p><p><span>***更新：</span>2020-12-16 12:44:19</p><p><span id="click" >瀏覽次數(shù)：8次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="u0mcgua" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海百若試驗(yàn)儀器有限公司</a></p><p><span>聯(lián)系人：</span>孫富榮</p><p><span>郵箱: </span>xinxi@bairoe.cn</p><p><span>電話: </span>13701715948</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-38181265</p><p><span>地址: </span>浦東新區(qū)川沙新鎮(zhèn)鹿達(dá)路81號(hào)1號(hào)樓、2號(hào)樓</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="osqqoui" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ua8ssg0" class="box"><p><p> 試驗(yàn)設(shè)備：***試驗(yàn)機(jī)沖擊試驗(yàn)：利用擺錘沖擊試樣前后的能量差來確定該試樣的韌性活脆性。特點(diǎn)是沖擊力大、作用時(shí)間短、變化快。硬度試驗(yàn)：是一種迅速、經(jīng)濟(jì)的機(jī)械試驗(yàn)方法，是測定材料機(jī)械性能應(yīng)用*****的方法之一，是***不損壞試件機(jī)械性能的試驗(yàn)。其他試驗(yàn)：扭轉(zhuǎn)試驗(yàn)、測力儀，拉力機(jī)，硫化儀、蠕變試驗(yàn)、松弛試驗(yàn)、持久試驗(yàn)試驗(yàn)機(jī)性能試驗(yàn)編輯金屬材料的室溫拉伸試驗(yàn)材料包括的種類：金屬材料和非金屬材料，不論是哪種材料在外力的作用下，所表現(xiàn)的抵抗變形或破壞的能力，稱做材料的機(jī)械性能。性能包括：強(qiáng)度、塑性、彈性、脆性、韌性、斷裂韌性、硬度等，浙江鋼軌彎曲疲勞試驗(yàn)機(jī)。強(qiáng)度：材料在外力（靜負(fù)荷）的作用下，抵抗其變形或破壞的能力稱做強(qiáng)度。抵抗外力的能力越大，強(qiáng)度越**度的單位Pa或Mpa（N/mm2或MN/m2）。按材料受力作用不同，強(qiáng)度分為抗拉強(qiáng)度、抗壓強(qiáng)度和抗彎強(qiáng)度。塑性：材料在外力作用下，產(chǎn)生長久變形而不被破壞的能力稱做塑性。材料在受外力作用時(shí)，產(chǎn)生的塑性變形程度越大，則塑性越好。彈性：材料在外力作用下，浙江鋼軌彎曲疲勞試驗(yàn)機(jī)，產(chǎn)生變形，當(dāng)外力取消后，仍能恢復(fù)原狀稱為彈性。脆性：材料在外力作用下，沒有明顯的長久變形抗斷裂稱做脆性。疲勞試驗(yàn)機(jī)根據(jù)試驗(yàn)頻率可分為低頻疲勞試驗(yàn)機(jī)、中頻疲勞試驗(yàn)機(jī)，浙江鋼軌彎曲疲勞試驗(yàn)機(jī)、高頻疲勞試驗(yàn)機(jī)、超高頻疲勞試驗(yàn)機(jī)8。浙江鋼軌彎曲疲勞試驗(yàn)機(jī)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江鋼軌彎曲疲勞試驗(yàn)機(jī),疲勞試驗(yàn)機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/shbairuo/637436655560968453/1304188.png"></div><p> 它是一種由2D激振閥控對稱缸構(gòu)成的新型電液激振器，在2D激振閥的驅(qū)動(dòng)下可實(shí)現(xiàn)高達(dá)2500Hz的激振頻率。通過控制雙邊閥控單出桿的同步運(yùn)動(dòng)，調(diào)節(jié)上夾頭高度以適應(yīng)長短不一的各疲勞試驗(yàn)材料。當(dāng)試驗(yàn)材料被上下夾頭固定后，2D電液激振器開始工作。2D激振閥連續(xù)旋轉(zhuǎn)驅(qū)動(dòng)電液激振器實(shí)現(xiàn)往復(fù)振動(dòng)，從而帶動(dòng)試件進(jìn)行疲勞試驗(yàn)，激振頻率與2D激振閥閥芯的轉(zhuǎn)速成正比。通過控制2D激振閥的軸向運(yùn)動(dòng)實(shí)現(xiàn)激振幅值的變化。為了測量試件在拉應(yīng)力、壓應(yīng)力以及拉壓交變應(yīng)力下的疲勞特性，需要對激振器的激振中心平衡位置進(jìn)行偏置控制從而改變電液激振器輸出的載荷力性質(zhì)，而由于2D激振閥的轉(zhuǎn)閥特性，無法加入偏置信號(hào)，因此在對稱液壓缸上并聯(lián)一個(gè)數(shù)字伺服閥，其結(jié)構(gòu)與控制單出桿液壓缸的2D數(shù)字閥相同。改變數(shù)字伺服閥的開口大小和方向就可以實(shí)現(xiàn)激振器振動(dòng)中心位置的偏置，偏置量與數(shù)字伺服閥的閥口開度成正比。當(dāng)需要對試件進(jìn)行拉伸或壓縮試驗(yàn)時(shí)，只需改變并聯(lián)數(shù)字閥的閥口方向和開口大小即可實(shí)現(xiàn)拉應(yīng)力和壓應(yīng)力的變化，也可實(shí)現(xiàn)拉壓交變載荷的應(yīng)力輸出。單出桿液壓缸所用油源與電液激振器的油源相互單一，以免油壓波動(dòng)造成橫梁高度發(fā)生變化。上海元件疲勞試驗(yàn)機(jī)疲勞試驗(yàn)機(jī)根據(jù)試驗(yàn)頻率可分為低頻疲勞試驗(yàn)機(jī)、中頻疲勞試驗(yàn)機(jī)、高頻疲勞試驗(yàn)機(jī)、超高頻疲勞試驗(yàn)機(jī)6。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江鋼軌彎曲疲勞試驗(yàn)機(jī),疲勞試驗(yàn)機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/shbairuo/637436656017840642/5273064.png"></div><p> 可對曲線進(jìn)行再分析,用鼠標(biāo)直接找出試驗(yàn)曲線上各對應(yīng)點(diǎn)的數(shù)據(jù)；9、曲線選擇:可根據(jù)用戶要求選擇應(yīng)力—應(yīng)變、力—時(shí)間等曲線進(jìn)行顯示和打??；10、批量試驗(yàn):對相同規(guī)格試樣,可以一次設(shè)定自動(dòng)完成一批次的試驗(yàn)；11、自動(dòng)打印:試驗(yàn)結(jié)束后,可自動(dòng)打印檢測結(jié)果；12、實(shí)時(shí)顯示:試驗(yàn)力和試驗(yàn)力峰值可實(shí)時(shí)顯示；13、限位保護(hù):具有程控和機(jī)械兩種限位保護(hù)；14、過載保護(hù):當(dāng)負(fù)荷超過**大值的2—5%時(shí),自動(dòng)停機(jī)；15、數(shù)據(jù)處理:試驗(yàn)力峰值和斷裂點(diǎn)的力值可打印記錄；試驗(yàn)機(jī)常見故障編輯常見故障：度盤指針靈敏性差，卸荷后有中途停止現(xiàn)象，或者零點(diǎn)位置經(jīng)常變動(dòng)。此種現(xiàn)象的產(chǎn)生原因是多方面的。1.齒桿上的滑輪及其道軌灰塵過多、銹蝕。此時(shí)需要卸下清洗干凈，再加少許鐘表油。2.指針轉(zhuǎn)動(dòng)軸臟，應(yīng)清洗。3.齒桿壓片和齒桿之間有接觸，應(yīng)調(diào)松。4.緩沖器回油情況不良，應(yīng)加以調(diào)整或清洗。（指彎路有所堵塞）5.測力活塞上的皮帶脫落或太松（使活塞不能勻速運(yùn)轉(zhuǎn)）。6.測力活塞在油缸內(nèi)摩擦力增大或卡死現(xiàn)象，應(yīng)用氧化鉻研磨膏對研，直至正常為止。7.擺錘在揚(yáng)起過程中有阻礙物，或者擺軸太臟或銹蝕，使指針回零變動(dòng)大。常見故障：加載荷時(shí)，有時(shí)加不到**大載荷或者在加載過程中卸載。</p><p> 國外普遍采用全自動(dòng)夾持，對與國內(nèi)試驗(yàn)機(jī)廠家來說，還是個(gè)新的課題5、對與成品及半成品的檢測，需要的夾具則是五花八門，如何個(gè)性化滿足客戶要求，對所有試驗(yàn)機(jī)廠家來說，都是一個(gè)挑戰(zhàn)。系統(tǒng)配置1．試驗(yàn)機(jī)主機(jī)（a）全數(shù)字伺服控制驅(qū)動(dòng)器全數(shù)字伺服控制電機(jī)（b）高精度世銓傳感器10kN(c)高精度絲杠副（c）光電式位移傳感器（d）同步帶減速系統(tǒng)2．Finetest微機(jī)控制控制器3．Finetest試驗(yàn)機(jī)控制軟件4．標(biāo)準(zhǔn)拉伸附具標(biāo)準(zhǔn)壓縮附具5．品牌計(jì)算機(jī)（選配）2、主機(jī)臺(tái)：試驗(yàn)機(jī)橡膠機(jī)測力儀，拉力機(jī)，硫化儀，按照不同層次客戶需求主要分為以下三種：微機(jī)控制單臂電子式拉力試驗(yàn)機(jī)數(shù)顯電子拉力試驗(yàn)機(jī)微機(jī)控制門式電子拉力試驗(yàn)機(jī)那么，我們該選擇一臺(tái)什么樣的橡膠拉力試驗(yàn)機(jī)來做橡膠拉伸試驗(yàn)?zāi)?？一、首先該明白：按照相關(guān)標(biāo)準(zhǔn)，我們需要的數(shù)據(jù)是什么？一般來說，橡膠的拉伸試驗(yàn)需要求取以下幾項(xiàng)或七項(xiàng)的參數(shù)1.試樣拉伸至斷裂過程中出現(xiàn)的**大力值（拉伸強(qiáng)度）；2.試樣斷裂時(shí)的力值（斷裂強(qiáng)度）；3.屈服點(diǎn)對應(yīng)的力值（屈服點(diǎn)拉伸應(yīng)力）；4.試樣拉伸到給定伸長率時(shí)的力值（定伸應(yīng)力）；5.試樣拉伸至給定應(yīng)力時(shí)的伸長率（定應(yīng)力伸長率）；6.屈服點(diǎn)對應(yīng)的伸長率（屈服點(diǎn)伸長率）。疲勞試驗(yàn)機(jī)也將更加的人性化、智能化和功能化6。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江鋼軌彎曲疲勞試驗(yàn)機(jī),疲勞試驗(yàn)機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/shbairuo/637436655894472203/6748303.png"></div><p> 抗拉強(qiáng)度、屈服強(qiáng)度或屈服點(diǎn)、伸長率）以及硬度、韌性指標(biāo)，還有用戶要求的高、低溫性能等?？估瓘?qiáng)度（Rm）----試樣在拉伸過程中，在拉斷時(shí)所承受的**大力（Fm），出以試樣原橫截面積（So）所得的應(yīng)力（R），稱為抗拉強(qiáng)度（Rm），單位為N/mm2（MPa）。它表示金屬材料在拉力作用下抵抗破壞的**大能力。計(jì)算公式為：式中：Fm--試樣拉斷時(shí)所承受的**大力，N（牛頓）；So--試樣原始橫截面積，mm2。屈服點(diǎn)（Re）具有屈服現(xiàn)象的金屬材料，試樣在拉伸過程中力不增加（保持恒定）仍能繼續(xù)伸長時(shí)的應(yīng)力，稱屈服點(diǎn)。若力發(fā)生下降時(shí)，則應(yīng)區(qū)分上、下屈服點(diǎn)。屈服點(diǎn)的單位為N/mm2（MPa）。上屈服點(diǎn)（ReH）----試樣發(fā)生屈服而力***下降前的**大應(yīng)力；下屈服點(diǎn)（ReL）----當(dāng)不計(jì)初始瞬時(shí)效應(yīng)時(shí)，屈服階段中的**小應(yīng)力。測力儀，拉力機(jī)，硫化儀試驗(yàn)機(jī)鹽霧機(jī)編輯鹽霧試驗(yàn)機(jī)為人工氣候環(huán)境“三防”(濕熱、鹽霧、霉菌)試驗(yàn)設(shè)備之一，鹽霧試驗(yàn)機(jī)是研究機(jī)械、**工業(yè)、輕工電子、儀表等行業(yè)各種環(huán)境適應(yīng)性和可靠性的一種重要試驗(yàn)設(shè)備。該鹽霧試驗(yàn)箱可按GB/《電子電工產(chǎn)品基本環(huán)境試驗(yàn)規(guī)程試驗(yàn)Ka:鹽霧試驗(yàn)方法》做中性鹽霧試驗(yàn)，同時(shí)也可做醋酸鹽霧試驗(yàn)。疲勞試驗(yàn)機(jī)也將更加的人性化、智能化和功能化。浙江鋼軌彎曲疲勞試驗(yàn)機(jī)</p><p style="text-indent:25px">疲勞試驗(yàn)機(jī)也將更加的人性化、智能化和功能化1。浙江鋼軌彎曲疲勞試驗(yàn)機(jī)</p><p> 收藏查看我的收藏0有用+1已投票0高頻疲勞試驗(yàn)機(jī)編輯鎖定本詞條由“科普中國”科學(xué)百科詞條編寫與應(yīng)用工作項(xiàng)目審核。高頻疲勞試驗(yàn)機(jī)用于進(jìn)行測定金屬、合金材料及其構(gòu)件（如操作關(guān)節(jié)、固接件、螺旋運(yùn)動(dòng)件等）在室溫狀態(tài)下的拉伸、壓縮或拉壓交變負(fù)荷的疲勞特性、疲勞壽命、預(yù)制裂紋及裂紋擴(kuò)展試驗(yàn)?；诓煌膽?yīng)用，高頻疲勞試驗(yàn)機(jī)還可分為電磁式與電機(jī)式兩種。電磁式高頻疲勞試驗(yàn)機(jī)的動(dòng)態(tài)位移相對較小，但是可以提供高達(dá)500Hz的試驗(yàn)頻率。電機(jī)式高頻疲勞試驗(yàn)機(jī)在頻率上不及電磁式但是提供了更大的位移量以滿足結(jié)構(gòu)件試驗(yàn)的需求。中文名高頻疲勞試驗(yàn)機(jī)外文名high-frequencyfatiguetestingmachine別名疲勞機(jī)頻率范圍100-300Hz用途金屬材料耐疲勞強(qiáng)度測試目錄1簡介2國內(nèi)外現(xiàn)狀3原理4電液高頻高頻疲勞試驗(yàn)機(jī)簡介編輯高頻疲勞試驗(yàn)機(jī)在配備相應(yīng)試驗(yàn)夾具后，可進(jìn)行正弦載荷下的三點(diǎn)彎曲試驗(yàn)、四點(diǎn)彎曲試驗(yàn)、薄板材拉伸試驗(yàn)、厚板材拉伸試驗(yàn)、強(qiáng)化鋼條拉伸試驗(yàn)、鏈條拉伸試驗(yàn)、固接件試驗(yàn)、連桿試驗(yàn)、扭轉(zhuǎn)疲勞試驗(yàn)、彎扭復(fù)合疲勞試驗(yàn)、交互彎曲疲勞試驗(yàn)、CT試驗(yàn)、CCT試驗(yàn)、齒輪疲勞試驗(yàn)。除以上的用途外。浙江鋼軌彎曲疲勞試驗(yàn)機(jī)</p><p 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