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燃(ran)料電(dian)池(chi)汽車(che)冷(leng)卻液是以防凍(dong)劑、緩(huan)蝕(shi)劑(ji)等(deng)原(yuan)料復(fu)配而(er)成(cheng)的,用於燃(ran)料電(dian)池(chi)汽車(che)電(dian)堆(dui)熱(re)管(guan)理系統(tong)中的功能性液體,具(ju)有(you)冷(leng)卻、絕緣(yuan)、防腐及(ji)防(fang)凍(dong)等(deng)作(zuo)用。檢(jian)測原(yuan)理方(fang)法(fa)根(gen)據(ju)《GB29743.3-2025機(ji)動車(che)冷(leng)卻液第(di)3部分(fen)燃(ran)料電(dian)池(chi)汽車(che)冷(leng)卻液》標(biao)準(zhun),采(cai)用(yong)山東(dong)盛泰(tai)儀器有限公(gong)司提供的SH0085B燃(ran)料電(dian)池(chi)汽車(che)冷(leng)卻液腐蝕(shi)儀來檢(jian)測。將燃(ran)料電(dian)池(chi)汽車(che)熱管(guan)理系(xi)統(tong)使用的典型(xing)材(cai)料制成(cheng)試片(pian),打磨(mo)、清洗(xi)及(ji)稱(cheng)重(zhong)後(hou),按(an)規定(ding)順序組(zu)裝(zhuang)成(cheng)試片(pian)束。放(fang)入試驗杯(bei)中,倒(dao)人750ml.燃(ran)電(dian)冷(leng)卻液試樣(yang),移至加(jia)熱設(she)備(bei)上(shang),在(zai)試(shi)驗溫(wen)度(du)90℃士(shi)2℃、...
油(you)離度(du)是影(ying)響(xiang)耐(nai)用(yong)性(xing)的關鍵,是指(zhi)產(chan)品(pin)在(zai)200℃下(xia)保持(chi)24小(xiao)時(shi)後(hou)矽(gui)油(you)析(xi)出量,數值(zhi)越(yue)低(di)越(yue)耐(nai)用(yong)。5201-1優(you)質(zhi)矽(gui)脂的油(you)離度(du)會(hui)控(kong)制在(zai)≤6%(200℃/24h測試標(biao)準(zhun)),基(ji)礎油(you)與填(tian)料結(jie)合緊密,不(bu)易揮(hui)發(fa)析(xi)出,能長期保持(chi)細膩(ni)膏狀(zhuang)。SH12網分油(you)器按照(zhao)國(guo)家石(shi)油(you)化工行(xing)業(ye)標(biao)準(zhun)SH/T0324-92、ASTMD6184《潤滑脂鋼網分油(you)測定(ding)法(fa)(靜(jing)態法(fa))》的規定(ding)設計制(zhi)造(zao),用(yong)於測定(ding)潤滑脂在(zai)高(gao)溫下(xia)的分油(you)傾(qing)向(xiang)。實(shi)驗步(bu)驟1.稱(cheng)量已(yi)恒(heng)重的燒(shao)杯(bei),精(jing)確(que)至0.01g,裝(zhuang)上掛(gua)桿(gan)2.稱(cheng)取10g試(shi)樣(yang),精(jing)確(que)至0.01g,置(zhi)於...
能源汽車(che)冷(leng)卻液冰點自(zi)動測定(ding)試驗方(fang)法(fa)防(fang)凍(dong)液冷(leng)卻液是以乙二醇(chun)為(wei)主(zhu)要(yao)成(cheng)分的冷(leng)卻劑,包(bao)含(han)降冰點劑、緩(huan)蝕(shi)劑(ji)、消(xiao)泡(pao)劑等(deng)添(tian)加(jia)劑,具(ju)備(bei)防(fang)凍(dong)、防沸、防(fang)腐(fu)蝕(shi)及(ji)防(fang)水(shui)垢(gou)功(gong)能。其冰點可降至(zhi)-60℃,沸點(dian)可(ke)達110℃以上,需(xu)全年(nian)使用以保護(hu)發(fa)動機(ji)冷(leng)卻系統(tong)。乙二醇(chun)型(xing)防(fang)凍(dong)液占市場95%以上,需(xu)每兩(liang)年更換壹次。國際標(biao)準(zhun)ASTMD3306、D4985及(ji)D4340為(wei)品(pin)質(zhi)檢(jian)測依據,新壹代產品(pin)已(yi)取代(dai)易(yi)結(jie)膠(jiao)的矽(gui)酸鹽(yan)和(he)易形(xing)成(cheng)水(shui)垢(gou)的磷酸鹽(yan)成(cheng)分。冰點是衡(heng)量(liang)冷(leng)卻液質(zhi)量的重要(yao)指標(biao)之壹,冷(leng)卻液冰點的測定(ding)可以采(cai)用(yong)SH128全(quan)自(zi)動冰點測...
潤滑脂,俗稱黃(huang)油(you),是由(you)基(ji)礎油(you)(礦物(wu)油(you)或合成(cheng)油(you))、稠化劑(皂(zao)基(ji)或非(fei)皂(zao)基(ji))及(ji)添(tian)加(jia)劑組(zu)成(cheng)的三(san)元半(ban)固(gu)體潤滑劑。按稠化劑可(ke)分(fen)為皂(zao)基(ji)脂(zhi)和(he)非皂(zao)基(ji)脂(zhi),其(qi)中(zhong)鋰基(ji)脂(zhi)占(zhan)中(zhong)國(guo)總產量81.08%。性(xing)能指標(biao)包(bao)括(kuo)滴(di)點(dian)、針(zhen)入(ru)度(du)及(ji)分(fen)油(you)試(shi)驗,常(chang)溫下呈(cheng)固(gu)態,受壓時(shi)釋(shi)放油(you)膜,適(shi)用(yong)於軸承(cheng)、齒(chi)輪(lun)等(deng)機(ji)械潤滑。滴點是指(zhi)其(qi)在(zai)規(gui)定(ding)條件(jian)下達到(dao)壹定(ding)流動性(xing)時(shi)的ZUI低(di)溫度(du),以°C表示(shi)(用攝氏(shi)度(du)表示(shi))。滴點(dian)是在(zai)標(biao)準(zhun)條(tiao)件下(xia)潤滑脂從半固(gu)體(ti)變(bian)成(cheng)液體狀(zhuang)態的溫度(du)。測定(ding)滴點(dian)的方(fang)法(fa)有(you)三(san)種(zhong):潤滑脂和(he)固體(ti)烴滴(di)點測定(ding)法(fa)SH/T0115-92、潤滑脂滴點測...
在(zai)粉(fen)體材(cai)料、礦業冶(ye)金、生物(wu)醫藥等(deng)領(ling)域(yu),顆(ke)粒物(wu)料的硬度(du)特(te)性(xing)是影(ying)響(xiang)產(chan)品(pin)加(jia)工性(xing)能、使用效(xiao)果與使用壽(shou)命的核心指標(biao)。自(zi)動顆(ke)粒硬度(du)計依托精(jing)密力(li)學傳(chuan)感(gan)與智(zhi)能自(zi)動定(ding)位技(ji)術(shu),可(ke)實現單顆(ke)粒及(ji)批(pi)量(liang)顆(ke)粒的硬度(du)精(jing)準(zhun)檢(jian)測,具(ju)備(bei)測量精(jing)度(du)高(gao)(載(zai)荷精(jing)度(du)≤±0.1%FS)、粒徑(jing)適(shi)配廣(10μm-10mm)、自(zi)動化程度(du)高(gao)的核心優勢。設備(bei)支(zhi)持(chi)壓痕(hen)法(fa)、抗(kang)壓法(fa)等(deng)多(duo)種測試模式,可(ke)自(zi)動完(wan)成(cheng)顆(ke)粒定(ding)位、施(shi)壓、數據(ju)采(cai)集與分(fen)析(xi),具(ju)備(bei)數據(ju)追(zhui)溯與報(bao)告(gao)生成(cheng)功能,覆蓋(gai)實(shi)驗室(shi)研(yan)發(fa)、生產線(xian)質(zhi)控(kong)等(deng)全(quan)系列機型(xing),符(fu)合相關(guan)行業(ye)檢(jian)測標(biao)準(zhun),...
螺(luo)紋(wen)脂是壹種用於螺(luo)紋(wen)連接部件的潤滑劑,廣泛應用於(yu)機(ji)械、汽車(che)、航(hang)空等(deng)行(xing)業。不僅在(zai)減(jian)少摩擦(ca)、降低(di)扭矩(ju)要(yao)求方(fang)面(mian)發(fa)揮(hui)重(zhong)要(yao)作(zuo)用,還直(zhi)接關系到(dao)螺(luo)紋(wen)連接的密封(feng)效(xiao)果和(he)防腐(fu)能力。在(zai)暴(bao)露作(zuo)業情(qing)況(kuang)下,尤(you)其是海(hai)洋平(ping)臺,酸性氣(qi)體環(huan)境的服役(yi)條(tiao)件下,需(xu)要(yao)進行(xing)腐蝕(shi)防(fang)護(hu)與治(zhi)理(li)。因此(ci),螺(luo)紋(wen)脂還應提供(gong)有(you)效(xiao)的防護(hu)以阻(zu)止(和(he)不促使)對螺(luo)紋(wen)接頭的腐蝕(shi)侵(qin)蝕(shi)。檢(jian)測螺(luo)紋(wen)脂的防腐蝕(shi)能力可(ke)以通(tong)過(guo)在(zai)濕(shi)熱環(huan)境下進(jin)行長時(shi)間(jian)暴(bao)露,觀(guan)察螺(luo)紋(wen)樣(yang)品(pin)的腐蝕(shi)情(qing)況(kuang),評(ping)估其防(fang)腐蝕(shi)性(xing)能。SY5018B潤滑脂防腐蝕(shi)性(xing)測定(ding)儀是按(an)照(zhao)GB/T5018-2008...
螺(luo)紋(wen)脂是壹種用於螺(luo)紋(wen)連接部件的潤滑劑,廣泛應用於(yu)機(ji)械、汽車(che)、航(hang)空等(deng)行(xing)業。應按照(zhao)ASTMD4048完(wan)成(cheng)螺(luo)紋(wen)脂銅(tong)片(pian)腐蝕(shi)試(shi)驗,以判(pan)斷(duan)其(qi)中是否(fou)存在(zai)潛(qian)在(zai)的腐蝕(shi)性(xing)物(wu)質(zhi)。雖然在(zai)產(chan)品(pin)連(lian)接中不使用銅(tong)(除(chu)作(zuo)為螺(luo)紋(wen)表面(mian)鍍層(ceng)外(wai)),但(dan)它(ta)能迅速地(di)同所(suo)存在(zai)的活性物(wu)質(zhi)如硫(liu)、氯等(deng)發(fa)生反應,這些(xie)活性物(wu)質(zhi)同樣(yang)也損壞(huai)鋼。SY7326潤滑脂銅(tong)片(pian)腐蝕(shi)測定(ding)器符合GB/T7326試驗方(fang)法(fa)的要(yao)求,適(shi)用(yong)於測定(ding)潤滑脂對銅(tong)的腐蝕(shi)性(xing)。方(fang)法(fa)概(gai)要(yao)把壹塊準(zhun)備(bei)好(hao)的銅(tong)片(pian)全部(bu)浸(jin)入到(dao)潤滑脂試樣(yang)中,在(zai)烘箱(xiang)或液體浴中(zhong)加(jia)熱壹定(ding)的時(shi)間(jian)。壹般采(cai)用(yong)的條件是1...
選(xuan)擇(ze)冷(leng)卻液時(shi),關(guan)鍵要(yao)選擇(ze)自(zi)燃(ran)點)遠(yuan)高(gao)於設(she)備(bei)ZUI高(gao)工作(zuo)溫度(du)的液體,確(que)保其閃(shan)點(dian)和(he)燃(ran)點高(gao),不易(yi)燃(ran),同時(shi)兼(jian)顧熱(re)特性、電(dian)氣(qi)性能和(he)材(cai)料兼(jian)容(rong)性(xing),以保證(zheng)浸(jin)沒式(shi)冷(leng)卻液(的安全、高(gao)效(xiao)運(yun)行和(he)長壽(shou)命,避免易(yi)燃(ran)的醇類、礦物(wu)油(you)等(deng),傾(qing)向於高(gao)閃點(dian)、高(gao)自(zi)燃(ran)點的特殊液體(如(ru)氟化液、矽(gui)油(you)等(deng))。冷(leng)卻液自(zi)燃(ran)點為(wei)什(shen)麽重(zhong)要(yao)?安全(quan)DI壹:冷(leng)卻液在(zai)高(gao)溫(如(ru)服務器)下可能霧化或接觸高(gao)溫表面(mian),自(zi)燃(ran)點低(di)意味(wei)著(zhe)更(geng)容(rong)易(yi)自(zi)燃(ran)起火(huo),造(zao)成(cheng)火(huo)災和(he)設備(bei)損(sun)失(shi)。遠(yuan)離風險(xian):浸(jin)沒式(shi)冷(leng)卻液的自(zi)燃(ran)點需(xu)要(yao)遠(yuan)高(gao)於其(qi)工(gong)作(zuo)溫度(du)(如(ru)服務器通(tong)常(chang)如何選擇(ze)高(gao)自(zi)燃(ran)點冷(leng)卻液...
液壓油(you)的空氣(qi)釋放(fang)值是衡(heng)量(liang)其(qi)從受壓狀(zhuang)態中(zhong)分(fen)離微小(xiao)氣(qi)泡(pao)能力的關鍵指(zhi)標(biao),直(zhi)接關系到(dao)液壓系(xi)統(tong)的穩定(ding)性和(he)效(xiao)率(lv)。SH0308B空(kong)氣(qi)釋放(fang)值測定(ding)儀采(cai)用(yong)32位(wei)MCU,7英寸大(da)屏(ping)幕(mu)液晶(jing)顯示(shi),具(ju)有(you)穩(wen)定(ding)可靠(kao)、操(cao)作(zuo)簡便、易於(yu)維(wei)護(hu)的優點。適(shi)用(yong)於SHT0308-1992《潤滑油(you)空(kong)氣(qi)釋放(fang)值測定(ding)法(fa)》。內(nei)置(zhi)壓力(li)控(kong)制器,自(zi)動控(kong)制氣(qi)壓,無(wu)需(xu)手動調(tiao)節。符合ASTMD3427-2007潤滑油(you)空(kong)氣(qi)釋放(fang)值測定(ding)。測試的原(yuan)理是:在(zai)壹定(ding)的條件下(xia),將過量(liang)的壓縮(suo)空氣(qi)吹入(ru)到(dao)潤滑油(you)樣(yang)中,使試樣(yang)劇烈攪動,形(xing)成(cheng)小(xiao)氣(qi)泡(pao)。停(ting)止通(tong)氣(qi)後,記(ji)錄(lu)氣(qi)泡(pao)...
潤滑脂是由(you)基(ji)礎油(you)、稠化劑和(he)添加(jia)劑組(zu)成(cheng)的半固態潤滑劑,其使用性能很(hen)大(da)程度(du)上(shang)取決於(yu)基(ji)礎油(you)從(cong)稠化劑骨架(jia)中(zhong)分離的能力。在(zai)機(ji)械運(yun)轉過程(cheng)中(zhong),潤滑脂需(xu)要(yao)適(shi)度(du)分(fen)油(you)以形(xing)成(cheng)有效(xiao)油(you)膜,但(dan)過(guo)度(du)分(fen)油(you)會(hui)導致稠度(du)變(bian)化、壽(shou)命縮(suo)短,而(er)分油(you)不(bu)足則(ze)可能引(yin)起潤滑不良。壓力(li)分(fen)油(you)檢(jian)測通(tong)過(guo)模擬實(shi)際工(gong)況(kuang)條件(jian),定(ding)量測定(ding)潤滑脂在(zai)規(gui)定(ding)壓力(li)和(he)時(shi)間(jian)下的析油(you)量(liang),為(wei)產(chan)品(pin)研(yan)發(fa)、質(zhi)量控(kong)制和(he)應用選(xuan)型(xing)提(ti)供科學依據。SY392潤滑脂壓力(li)分(fen)油(you)器是按(an)照(zhao)標(biao)準(zhun)GB/T392設(she)計制(zhi)造(zao)的。本儀器是利(li)用(yong)加(jia)壓分(fen)油(you)器將油(you)從(cong)潤滑脂內(nei)壓出,然後(hou)測定(ding)壓出的油(you)量(liang)。試(shi)驗步(bu)驟...
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