Kusankhidwa kwa chisindikizo cha valve ya mpira ndikofunikira kuti ntchito yake ikhale yopambana.Mu positi iyi, tiwona zina mwazinthu zazikulu zisanu ndi chimodzi zomwe zimagwiritsidwa ntchito kwambiri pazisindikizo za polima mu mavavu a mpira.
Nazi zina zowonjezera pa Mipando ya Polima ndi Mayankho Osindikiza:
- Mipando ya Vavu ya Mpira - Zosankha 9 Zofunikira Zogula
- Advanced EMC Technologies High Performance Selling Solutions Guides
- PTFE Rotary Lip Zisindikizo - 6 Opikisana nawo Sakufuna Kuti Mudziwe!
Nkhani Yofunika #1:Namwali PTFE
Virgin PTFE (dzina la malonda polima) ndi abwino ngati zida zosindikizira za mpira pazovuta zosakwana 5 ksi ndi kutentha pakati pa -20 F ndi 400 F;komabe, kutentha kwake kumadalira kupanikizika.Kulankhula za kukakamizidwa, PTFE sidecompress bwino pambuyo pa kupsyinjika.Dziwani kuti polima sichita bwino pamene kutentha kusinthasintha kuposa 167 F. Imodzi mwa mphamvu zake zazikulu ndi kukana mankhwala, kukhala pafupi ndi insoluble;mphamvu ina ndi yotsika kwambiri kukangana.Komanso imalimbana ndi moto.
Nkhani Yofunika #2:Galasi Yolimbitsa PTFE
Kulimbitsa PTFE monga momwe amagwiritsidwira ntchito muzitsulo zosindikizira za mpira nthawi zambiri zimakhala 15% zamagalasi, kuonjezera kutentha ndi kupanikizika komwe kulipo ndi namwali PTFE.Monga polima wosakhazikika, galasi lolimbitsa PTFE likadali ndi kukana kwamankhwala abwino kwambiri kupatula ma caustics otentha ndi ma hydroflourics.Izi, nazonso, ndizosagwirizana ndi moto ndipo zimakhala ndi mikangano yochepa, ngakhale osati yotsika ngati PTFE.
Nkhani Yofunika #3:Chitsulo Chosapanga dzimbiri Cholimbitsa PTFE
Pali njira ina yolimbikitsira PTFE yomwe nthawi zina imagwiritsidwa ntchito posindikiza ma valve: chitsulo chosapanga dzimbiri cholimbitsa PTFE.Chisindikizo chophatikizika ichi chimapangidwa ndi 50% polima ndi 50% ufa 316 chitsulo chosapanga dzimbiri.Kutentha kwake ndi -20 F mpaka 550 F (pang'ono kuposa PTFE virgin) ndipo ili ndi mphamvu zowonjezera kuposa namwali kapena galasi fiber reinforced PTFE.Nayonso, imalimbana ndi moto, komabe kugundana kwake ndikwapamwamba kuposa PTFE.
Nkhani Yofunika #4:PEEK
PEEK ndi njira ina pamene zofunikira zili kunja kwa kutentha kwa PTFE.PEEK imagwira ntchito bwino m'malo omwe kutentha kumakhala pakati pa -70 F mpaka 600 F, ndipo sikukhudzidwa ndi kuwonetsedwa kosalekeza kwa nthunzi ndi madzi otentha.Ndi yolimba kuposa polima, komanso yolimba.Cholepheretsa chake chachikulu, kuwonjezera pa kulimba kwake, ndi khalidwe lake losasunthika pa kutentha kochepa.
Nkhani Yofunika #5:UMHW Polyethylene
UHMW Polyethylene ikuwoneka ngati yosankha pamapulogalamu apadera, kuphatikiza omwe padzakhala kuwonekera kwa radiation yotsika kapena yapakatikati.Kuthamanga kwake ndi 1.5 ksi ndipo kutentha kwake ndi -70 F mpaka 200 F 1500 psi -57C mpaka 93C.UHMW Polyethylene ilinso ndi kukana kwabwino kwambiri kwa abrasion.
Nkhani Yofunika #6:Polyether ya Chlorinated
Chlorinated polyether nthawi zina amagwiritsidwa ntchito ngati zida zosindikizira mpira, zimagwira ntchito pa kutentha mpaka 257 F. Zimagwira ntchito bwino pamaso pa ma asidi ndi zosungunulira ngati kufewetsa kungathe kulekerera, ndipo kumagwirizana ndi mankhwala oposa 300.Simakwawa, ndipo samakonda kuyamwa madzi.
Zisindikizo Zimangosintha:
Zida zosindikizira ndi gawo lomwe likusintha mosalekeza, koma zida zisanu ndi chimodzizi zikuwoneka kuti ndizo zitsogola pazisankho zosindikizira za mpira wa thermoplastic.Makhalidwe awo akuluakulu amawoneka ngati kuthamanga ndi kutentha, kuthamanga kochepa, kukana kwa mankhwala.
Tags:polymer ptfe,uhmw,zisindikizo za mpira
Nthawi yotumiza: Jul-10-2018