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  • 202010-3
    等離子清洗機的表面改性方法及應用制約因素

    等離(li)(li)子體(ti)表(biao)(biao)(biao)面活(huo)化使許(xu)多(duo)聚合物(wu)能夠接受粘合劑和(he)涂層。氧(yang)氣(qi)通常用作工(gong)藝氣(qi)體(ti),然(ran)而,許(xu)多(duo)等離(li)(li)子體(ti)激活(huo)也可以用環境(jing)空氣(qi)進行。零件保持活(huo)動數分(fen)鐘至幾個月,具體(ti)取決于等離(li)(li)子體(ti)處(chu)理(li)(li)(li)的(de)(de)(de)特定材料。等離(li)(li)子清(qing)洗(xi)機(ji)材料表(biao)(biao)(biao)面改性(xing)(xing)(xing)(xing)的(de)(de)(de)方(fang)法通常可分(fen)為化學(xue)改性(xing)(xing)(xing)(xing)和(he)物(wu)理(li)(li)(li)改性(xing)(xing)(xing)(xing)。化學(xue)改性(xing)(xing)(xing)(xing)是指(zhi)用化學(xue)試劑處(chu)理(li)(li)(li)材料表(biao)(biao)(biao)面,使其表(biao)(biao)(biao)面性(xing)(xing)(xing)(xing)質得(de)到改善的(de)(de)(de)方(fang)法,包(bao)括(kuo)(kuo)酸洗(xi)、堿(jian)洗(xi)、過氧(yang)化物(wu)或臭氧(yang)處(chu)理(li)(li)(li)等。物(wu)理(li)(li)(li)改性(xing)(xing)(xing)(xing)指(zhi)用物(wu)理(li)(li)(li)技術處(chu)理(li)(li)(li)材料表(biao)(biao)(biao)面,使其表(biao)(biao)(biao)面性(xing)(xing)(xing)(xing)質得(de)到改善的(de)(de)(de)方(fang)法,包(bao)括(kuo)(kuo)等離(li)(li)子體(ti)表(biao)(biao)(biao)面處(chu)理(li)(li)(li)、光(guang)輻射處(chu)理(li)(li)(li)、火焰(yan)處(chu)理(li)(li)(li)、力化學(xue)處(chu)理(li)(li)(li)、涂覆處(chu)理(li)(li)(li)及加入(ru)表(biao)(biao)(biao)面改性(xing)(xing)(xing)(xing)...

  • 20209-4
    淺述半導體制冷臺的歷史發展

    半(ban)導(dao)(dao)(dao)體(ti)(ti)制冷(leng)又稱(cheng)(cheng)電子(zi)制冷(leng),或者溫差電制冷(leng),是從(cong)50年(nian)代(dai)發(fa)展起來的(de)一門介(jie)于(yu)制冷(leng)技(ji)術和(he)半(ban)導(dao)(dao)(dao)體(ti)(ti)技(ji)術邊緣的(de)學(xue)科(ke),它利用特種半(ban)導(dao)(dao)(dao)體(ti)(ti)材料構成(cheng)的(de)P-N結,形成(cheng)熱電偶對(dui),產生珀爾(er)(er)帖(tie)效(xiao)應,即(ji)通(tong)過直流電制冷(leng)的(de)一種新型制冷(leng)方法,與壓(ya)縮式制冷(leng)和(he)吸(xi)收式制冷(leng)并稱(cheng)(cheng)為(wei)世(shi)界三大制冷(leng)方式。帕爾(er)(er)帖(tie)效(xiao)應的(de)物理原理為(wei):電荷載體(ti)(ti)在導(dao)(dao)(dao)體(ti)(ti)中運(yun)動形成(cheng)電流,由于(yu)電荷載體(ti)(ti)在不同的(de)材料中處于(yu)不同的(de)能級,當它從(cong)高能級向低能級運(yun)動時(shi),就會釋放(fang)出多余的(de)熱量。反之,就需要(yao)從(cong)外界吸(xi)收熱量(即(ji)表(biao)現為(wei)制冷(leng))。所(suo)以(yi),半(ban)導(dao)(dao)(dao)體(ti)(ti)制冷(leng)的(de)效(xiao)果(guo)就主要(yao)取(qu)決于(yu)電荷...

  • 20207-20
    了解真空探針臺具備的特點才能更好的使用它

    真(zhen)空(kong)探針(zhen)臺(tai)(tai)(tai)是(shi)一個低成(cheng)本不(bu)需(xu)要(yao)低溫(wen)(wen)制冷(leng)劑(ji)的(de)探針(zhen)臺(tai)(tai)(tai),它可(ke)(ke)以對器(qi)件(jian)進行(xing)非破壞性(xing)的(de)測(ce)(ce)試,器(qi)件(jian)的(de)尺寸可(ke)(ke)達到51mm,可(ke)(ke)以對材料或器(qi)件(jian)的(de)電學特性(xing)測(ce)(ce)量(liang)、光電特性(xing)測(ce)(ce)量(liang)、參數測(ce)(ce)量(liang)、highZ測(ce)(ce)量(liang)、DC測(ce)(ce)量(liang)、RF測(ce)(ce)量(liang)和(he)微波(bo)特性(xing)測(ce)(ce)量(liang)提(ti)供一個測(ce)(ce)試平臺(tai)(tai)(tai)。真(zhen)空(kong)探針(zhen)臺(tai)(tai)(tai)主(zhu)要(yao)用于為(wei)被測(ce)(ce)芯(xin)片(pian)提(ti)供一個低溫(wen)(wen)或者高溫(wen)(wen)的(de)變(bian)溫(wen)(wen)測(ce)(ce)量(liang)環境(jing)(jing),以便測(ce)(ce)量(liang)分析溫(wen)(wen)度變(bian)化(hua)時芯(xin)片(pian)性(xing)能參數的(de)變(bian)化(hua)。腔體內被測(ce)(ce)芯(xin)片(pian)在(zai)真(zhen)空(kong)環境(jing)(jing)中(zhong)有效避(bi)免易受氧(yang)化(hua)半導體器(qi)件(jian)接觸空(kong)氣(qi)所帶來的(de)測(ce)(ce)試結(jie)果誤(wu)差(cha)。因為(wei)晶圓在(zai)低溫(wen)(wen)大氣(qi)環境(jing)(jing)測(ce)(ce)試時,空(kong)氣(qi)中(zhong)的(de)水汽(qi)會(hui)凝結(jie)在(zai)晶圓上,會(hui)導致...

  • 20207-10
    恭喜鄭州科探儀器設備有限公司喜添石英管真空封管機證書

    科(ke)探儀器設(she)備自主研發的(de)(de)(de)真(zhen)空(kong)(kong)(kong)(kong)封(feng)(feng)(feng)(feng)管(guan)(guan)(guan)系(xi)統(tong),操作簡單快捷,并且采用(yong)了*的(de)(de)(de)旋轉(zhuan)密(mi)(mi)封(feng)(feng)(feng)(feng)法蘭,可(ke)以隨(sui)意調(diao)節試管(guan)(guan)(guan)的(de)(de)(de)密(mi)(mi)封(feng)(feng)(feng)(feng)速度,同時無需手動(dong)轉(zhuan)動(dong)試管(guan)(guan)(guan)便可(ke)密(mi)(mi)封(feng)(feng)(feng)(feng),大大提(ti)升了試管(guan)(guan)(guan)密(mi)(mi)封(feng)(feng)(feng)(feng)效(xiao)率。多種(zhong)型(xing)號可(ke)選,咨詢(xun)選購!真(zhen)空(kong)(kong)(kong)(kong)封(feng)(feng)(feng)(feng)樣機(ji)(ji)-真(zhen)空(kong)(kong)(kong)(kong)封(feng)(feng)(feng)(feng)管(guan)(guan)(guan)系(xi)統(tong)產品真(zhen)空(kong)(kong)(kong)(kong)封(feng)(feng)(feng)(feng)樣機(ji)(ji)-真(zhen)空(kong)(kong)(kong)(kong)封(feng)(feng)(feng)(feng)管(guan)(guan)(guan)系(xi)統(tong)供(gong)應,科(ke)探儀器自主研發的(de)(de)(de)真(zhen)空(kong)(kong)(kong)(kong)封(feng)(feng)(feng)(feng)管(guan)(guan)(guan)設(she)備主要用(yong)于對硼(peng)硅(gui)酸鹽、石(shi)英等各(ge)種(zhong)材質(zhi)的(de)(de)(de)玻(bo)璃管(guan)(guan)(guan)進行真(zhen)空(kong)(kong)(kong)(kong)密(mi)(mi)封(feng)(feng)(feng)(feng),同時,提(ti)供(gong)適應各(ge)種(zhong)試管(guan)(guan)(guan)外徑的(de)(de)(de)卡套定制。真(zhen)空(kong)(kong)(kong)(kong)封(feng)(feng)(feng)(feng)管(guan)(guan)(guan)設(she)備的(de)(de)(de)半(ban)自動(dong)化(hua)設(she)計(ji),實現試管(guan)(guan)(guan)在真(zhen)空(kong)(kong)(kong)(kong)密(mi)(mi)封(feng)(feng)(feng)(feng)過程中可(ke)以自動(dong)旋轉(zhuan)。

  • 20206-17
    淺述氣體配比器的工藝流程及控制方法

    氣(qi)(qi)體(ti)混(hun)配器(qi)根(gen)據不(bu)同(tong)氣(qi)(qi)體(ti)比(bi)(bi)(bi)例混(hun)合(he)原理,可用于(yu)食品工(gong)業中可與(yu)包(bao)裝(zhuang)(zhuang)(zhuang)機配套使(shi)用,食品包(bao)裝(zhuang)(zhuang)(zhuang)過程中采(cai)用二氧(yang)化(hua)碳(tan)、氧(yang)氣(qi)(qi)、氮氣(qi)(qi)不(bu)同(tong)氣(qi)(qi)體(ti)種類、比(bi)(bi)(bi)例組合(he)進行保鮮包(bao)裝(zhuang)(zhuang)(zhuang)。下(xia)面為您(nin)介(jie)紹氣(qi)(qi)體(ti)配比(bi)(bi)(bi)器(qi)的(de)(de)工(gong)藝(yi)流程及控制(zhi)方法:1、采(cai)用進口質量(liang)(liang)流量(liang)(liang)控制(zhi)器(qi)控制(zhi)器(qi)氣(qi)(qi)體(ti)的(de)(de)體(ti)積流量(liang)(liang)進行二元(yuan)(yuan)或(huo)三(san)(san)元(yuan)(yuan)氣(qi)(qi)體(ti)的(de)(de)混(hun)合(he)配比(bi)(bi)(bi),在設備高精度工(gong)作(zuo)的(de)(de)同(tong)時,保證設備運行的(de)(de)可靠性(xing)和配比(bi)(bi)(bi)穩(wen)定(ding)(ding)性(xing)。(三(san)(san)元(yuan)(yuan)氣(qi)(qi)體(ti)以相應標準氣(qi)(qi)體(ti)做同(tong)比(bi)(bi)(bi)例標定(ding)(ding),實測(ce)氣(qi)(qi)體(ti)顯(xian)示數(shu)據做依據做比(bi)(bi)(bi)對數(shu)據檢測(ce)或(huo)聯機色譜儀在線(xian)監測(ce)微調質量(liang)(liang)流量(liang)(liang)計設備參數(shu),使(shi)其/終混(hun)配比(bi)(bi)(bi)例在0.1%以內(nei),具(ju)體(ti)數(shu)...

  • 20206-2
    淺述等離子清洗機的工藝原理及使用注意事項

    等(deng)離(li)子清洗(xi)機的(de)(de)(de)頻率有40KHZ,13.56MHz,2.45GHz這幾(ji)種,它采用(yong)氣(qi)體(ti)(ti)(ti)(ti)作(zuo)為清洗(xi)介質(zhi),有效地(di)避免(mian)了因液體(ti)(ti)(ti)(ti)清洗(xi)介質(zhi)對被(bei)清洗(xi)物(wu)帶(dai)來(lai)的(de)(de)(de)二次污染。工作(zuo)時清洗(xi)腔中的(de)(de)(de)等(deng)離(li)子體(ti)(ti)(ti)(ti)輕柔沖刷被(bei)清洗(xi)物(wu)的(de)(de)(de)表面,短時間的(de)(de)(de)清洗(xi)就可以使有機污染物(wu)被(bei)*地(di)清洗(xi)掉(diao),同(tong)時污染物(wu)被(bei)真空泵(beng)抽走,其清洗(xi)程度達(da)到(dao)分(fen)子級。等(deng)離(li)子體(ti)(ti)(ti)(ti)裝置(zhi)是在密封容器中設置(zhi)兩個電極形(xing)成電場,用(yong)真空泵(beng)實現一定的(de)(de)(de)真空度,隨著(zhu)氣(qi)體(ti)(ti)(ti)(ti)愈(yu)來(lai)愈(yu)稀薄,分(fen)子間距(ju)及分(fen)子或離(li)子的(de)(de)(de)自由運(yun)動距(ju)離(li)也愈(yu)來(lai)愈(yu)長,受電場作(zuo)用(yong),它們發(fa)生碰撞而形(xing)成等(deng)離(li)子體(ti)(ti)(ti)(ti),這時會發(fa)出(chu)輝光...

  • 20205-19
    不同的手動氣體配比器適用于不同的場所

    由(you)于混(hun)合(he)氣(qi)(qi)體(ti)(ti)(ti)(ti)(ti)在焊接(jie)保護(hu)上(shang)起(qi)到的(de)不(bu)(bu)可替代(dai)的(de)作用,已經有越(yue)來越(yue)多(duo)的(de)車(che)間選擇使用混(hun)合(he)氣(qi)(qi)體(ti)(ti)(ti)(ti)(ti)作為焊接(jie)保護(hu)氣(qi)(qi),因(yin)此氣(qi)(qi)體(ti)(ti)(ti)(ti)(ti)配(pei)比(bi)器(qi)(qi)(qi)成了(le)不(bu)(bu)少企業的(de)需求。不(bu)(bu)過(guo)配(pei)比(bi)器(qi)(qi)(qi)發展至今天種(zhong)類繁多(duo),工廠實際(ji)選擇時要切合(he)自(zi)身的(de)情況。從輸出流(liu)量的(de)不(bu)(bu)同(tong),氣(qi)(qi)體(ti)(ti)(ti)(ti)(ti)配(pei)比(bi)器(qi)(qi)(qi)可以劃分為30~50Ll/min的(de)小型配(pei)比(bi)器(qi)(qi)(qi),50~150m3/h的(de)中等流(liu)量配(pei)比(bi)柜(ju)(ju)、200~1000m3/h大(da)流(liu)量氣(qi)(qi)體(ti)(ti)(ti)(ti)(ti)配(pei)比(bi)柜(ju)(ju)以及1000m3/h以上(shang)的(de)超大(da)流(liu)量氣(qi)(qi)體(ti)(ti)(ti)(ti)(ti)配(pei)比(bi)柜(ju)(ju);另外根據混(hun)合(he)氣(qi)(qi)體(ti)(ti)(ti)(ti)(ti)種(zhong)類的(de)區(qu)別還有兩(liang)元、三元氣(qi)(qi)體(ti)(ti)(ti)(ti)(ti)配(pei)比(bi)柜(ju)(ju)。不(bu)(bu)過(guo)無論哪一種(zhong)氣(qi)(qi)體(ti)(ti)(ti)(ti)(ti)配(pei)比(bi)器(qi)(qi)(qi),其都有三個(ge)...

  • 20205-6
    半導體制冷臺的工作原理詳解

    到了二十世(shi)紀(ji)五十年代隨著半(ban)導(dao)體材料的(de)迅猛(meng)發展,熱(re)電(dian)(dian)(dian)制(zhi)冷(leng)(leng)器才逐漸從實驗室走向工(gong)程實踐,在國防、工(gong)業、農(nong)業、醫療和日常(chang)(chang)生活等(deng)領域獲(huo)得應用(yong)(yong),大到可以(yi)做核潛(qian)艇的(de)空調,小(xiao)(xiao)到可以(yi)用(yong)(yong)來冷(leng)(leng)卻(que)紅外(wai)線探測器的(de)探頭,因(yin)(yin)此通(tong)常(chang)(chang)又(you)把(ba)熱(re)電(dian)(dian)(dian)制(zhi)冷(leng)(leng)器稱(cheng)為半(ban)導(dao)體制(zhi)冷(leng)(leng)臺。半(ban)導(dao)體制(zhi)冷(leng)(leng)臺是指利用(yong)(yong)半(ban)導(dao)體的(de)熱(re)-電(dian)(dian)(dian)效應制(zhi)取冷(leng)(leng)量(liang)的(de)器件,又(you)稱(cheng)熱(re)電(dian)(dian)(dian)制(zhi)冷(leng)(leng)器。用(yong)(yong)導(dao)體連接兩(liang)塊(kuai)不同的(de)金屬,接通(tong)直流電(dian)(dian)(dian),則一(yi)個(ge)接點處溫(wen)度降(jiang)低,另(ling)一(yi)個(ge)接點處溫(wen)度升高。接通(tong)電(dian)(dian)(dian)源后,上接點附近產生電(dian)(dian)(dian)子空穴對,內能減小(xiao)(xiao),溫(wen)度降(jiang)低,向外(wai)界吸熱(re),稱(cheng)為冷(leng)(leng)端。另(ling)一(yi)端因(yin)(yin)電(dian)(dian)(dian)子空...

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