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石墨復合墊片在選購時應該注意哪些條件?
來源:濱州雙峰石墨密封材料有限公司    網址://www.bz-graphite.com

       石(shi)(shi)墨(mo)復(fu)合(he)墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)又叫(jiao)增強(qiang)(qiang)(qiang)(qiang)石(shi)(shi)墨(mo)墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)或高強(qiang)(qiang)(qiang)(qiang)石(shi)(shi)墨(mo)墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)是由沖(chong)刺的金屬齒板(ban)或金屬網(wang)板(ban)與(yu)膨脹石(shi)(shi)墨(mo)粒子復(fu)合(he)壓制的一種墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)。它通常(chang)通過專業墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)切(qie)割(ge)設備從增強(qiang)(qiang)(qiang)(qiang)石(shi)(shi)墨(mo)板(ban)沖(chong)壓或切(qie)割(ge)而(er)成(cheng)的。增強(qiang)(qiang)(qiang)(qiang)石(shi)(shi)墨(mo)墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)常(chang)用的內層增強(qiang)(qiang)(qiang)(qiang)材(cai)料有(you)(you)ss304,ss316或馬口鐵等(deng),厚度0.05~0.2mm,形式有(you)(you)沖(chong)刺板(ban)增強(qiang)(qiang)(qiang)(qiang)復(fu)合(he)墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian),網(wang)板(ban)增強(qiang)(qiang)(qiang)(qiang)復(fu)合(he)墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian),平板(ban)增強(qiang)(qiang)(qiang)(qiang)復(fu)合(he)墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)。
在(zai)選購石墨(mo)復(fu)合墊(dian)片時(shi),應該注(zhu)意以(yi)下幾(ji)點(dian):
(1)根據工況條件、法蘭密封面型式選(xuan)擇增強石墨墊片。
(2)在(zai)選(xuan)購(gou)時看它(ta)(ta)是(shi)否具備一定柔性(xing)的(de)(de)石墨有(you)非常(chang)(chang)好的(de)(de)耐溫性(xing),可以(yi)在(zai)零下260度到1500度的(de)(de)范圍內使用,而且(qie)有(you)非常(chang)(chang)好的(de)(de)抗腐蝕能力,應力松(song)弛(chi)率不是(shi)非常(chang)(chang)大,利(li)用它(ta)(ta)加工而成的(de)(de)密(mi)封件有(you)非常(chang)(chang)優秀的(de)(de)密(mi)封效果。
(3)壓(ya)縮(suo)率(lv)、回(hui)彈(dan)(dan)(dan)率(lv)和密封(feng)(feng)性能(neng)是密封(feng)(feng)增強(qiang)石(shi)墨墊片的重(zhong)要性能(neng)指標(biao),一般來說,在滿足壓(ya)縮(suo)率(lv)要求(qiu)的前提(ti)下,回(hui)彈(dan)(dan)(dan)率(lv)越(yue)高越(yue)好(hao);而(er)在滿足回(hui)彈(dan)(dan)(dan)率(lv)標(biao)準(zhun)要求(qiu)的前提(ti)下,壓(ya)縮(suo)率(lv)的測試值(zhi)也是大些為(wei)好(hao)。應選擇密封(feng)(feng)性能(neng)好(hao)、壓(ya)縮(suo)率(lv)適度且(qie)高水基盤板(ban)價格(ge)回(hui)彈(dan)(dan)(dan)率(lv)盡可(ke)能(neng)大的產品。
(4)選用質量管(guan)理(li)體系健全且有效(xiao)運行的(de)生產企業的(de)產品,最好選用持(chi)有特種設備(bei)(壓力(li)管(guan)道元件)制(zhi)造許可(ke)證書及有效(xiao)型(xing)式芳綸(lun)纖(xian)維盤根試驗報告的(de)企業的(de)產品。

本文標簽:石墨復合墊片在選購時應該注意哪些條件?
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