Kuti mugwiritse ntchito bwino PTFE mu a pampu ya axial split case , m'pofunika kumvetsa makhalidwe a nkhaniyi. Zina mwazinthu zapadera za PTFE zimapanga kukhala chinthu chabwino kwambiri chopangira zida zoluka:

1. Wabwino kukana mankhwala. Chifukwa chachikulu chogwiritsira ntchito PTFE ponyamula ndi chakuti sichimakhudzidwa ndi madzi osiyanasiyana owononga, kuphatikizapo ma acid amphamvu, maziko, ndi zosungunulira. Mwina chofunika kwambiri, PTFE imatha kupirira ma oxidizing amphamvu monga nitric acid, chlorine dioxide, ndi sulfuric acid (oleum).

2. Kutsika kocheperako kwa kukangana mukakumana ndi malo ambiri. PTFE imadziwika kuti ili ndi zinthu zosanyowetsa, zosalala, komanso zocheperako. Izi zimathandizira kuchepetsa kugwiritsa ntchito mphamvu komanso kutulutsa kutentha pamawonekedwe onyamula-shaft.

Ngakhale PTFE ili ndi zabwino zake, zina mwazinthu zake sizabwino pamapulogalamu ambiri apampopi. Mavuto omwe amakumana ndi kulongedza kwa PTFE nthawi zambiri amakhala chifukwa cha kutentha kwake komanso makina ake:

1. Cold deformation kapena kukwawa pansi pa kukakamizidwa. Kutentha kumawonjezeka ndi kuwonjezeka kwa kutentha. Pamene kuthamanga ntchito kwa 100% PTFE kulongedza katundu kwa nthawi, kulongedza akhoza kukhala wandiweyani olimba ndipo amafuna kusintha pafupipafupi kukhalabe chisindikizo. Ilinso ndi chizolowezi kufinya pamwamba ndi pansi mipata ya stuffing bokosi a pampu ya axial split case.

2. Low matenthedwe madutsidwe. Pamene kutentha kwapakati kumapangidwa pokhudzana ndi tsinde lothamanga kwambiri, PTFE yoyera imakhala ndi chizolowezi chotengera kutentha ndipo sichikhoza kuutaya kumalo ozungulira. Kuti mupewe kulongedza kwa PTFE kuti zisawotche kapena kuwotcha, kutayikira kwakukulu kumafunika pamtunda wolongedza.

3. Kukula kwamphamvu kowonjezera kutentha. Pamene kutentha kumawonjezeka, PTFE imakula mofulumira kuposa zitsulo zozungulira. Kukula uku kumawonjezera kukakamiza kwa kulongedza pa axial split case pampu shaft ndi bore.

PTFE Fiber Packing

Opanga ambiri amatulutsa zonyamula zomwe zimagwiritsa ntchito PTFE ngati ulusi woyambira. Izi zitha kuperekedwa ngati ulusi wouma, ulusi wokutidwa ndi PTFE dispersions, kapena ulusi wokutidwa ndi mafuta osiyanasiyana. Ndibwino kugwiritsa ntchito mankhwalawa pokhapokha ngati palibe njira ina ya PTFE, kuphatikizapo kugwiritsa ntchito mankhwala owononga monga oxidizer amphamvu, kapena chakudya kapena mankhwala.

Pakuti PTFE CHIKWANGWANI kulongedza katundu, m'pofunika makamaka kutsatira malire Mlengi pa kutentha, liwiro, ndi kuthamanga. Zolongedza izi zimakhala zovuta kwambiri kusintha zikagwiritsidwa ntchito pazida zozungulira. Kawirikawiri, kupanikizika kwa glands ndi kutsika kwakukulu kumafunika kusiyana ndi kunyamula kwina.

Zowonjezera Polytetrafluoroethylene (ePTFE) Packing

Ulusi wa ePTFE ndi wofanana ndi mawonekedwe a PTFE tepi. Mawonekedwe odziwika kwambiri ndi ePTFE ophatikizidwa ndi graphite kuti apititse patsogolo matenthedwe ake komanso kuthamanga kwake. Ma ePTFE malungo samva kutentha kwambiri kuposa PTFE fiber packing. ePTFE kulongedza akhoza kukhala ozizira deformation ndi extrusion pa zovuta kwambiri.

PTFE coated kulongedza

Pamene kwambiri mankhwala kukana koyera PTFE si chofunika, PTFE akhoza TACHIMATA pa ambiri CHIKWANGWANI zipangizo kusintha kulongedza katundu ndi kutenga mwayi ubwino PTFE. Ulusiwu ungathandizenso kuchepetsa kapena kuthetsa zina mwa zofooka zazitsulo zoyera za PTFE.

Ulusi wopangidwa ndi magalasi opangidwa ndi magalasi amatha kukutidwa ndi PTFE kuti apange zotengera zachuma, zosunthika zomwe zimakhala zolimba kwambiri, kukana kwambiri kutulutsa, komanso kukhudzika kocheperako kuposa ma PTFE fiber braids. Athanso yokutidwa ndi osakaniza omwazika a PTFE ndi graphite kupititsa patsogolo luso kuluka ndi liwiro dissipation makhalidwe.

Aramid fiber kulongedza ndi zokutira PTFE zitha kugwiritsidwa ntchito pomwe kukana kwambiri kumafunikira. Novoid CHIKWANGWANI kulongedza ndi PTFE zokutira angagwiritsidwe ntchito ntchito pang'ono dzimbiri ntchito ndipo ali bwino kulimba mtima ndi extrusion kukana kuposa PTFE CHIKWANGWANI zoluka.

PTFE- TACHIMATA mpweya ndi graphite CHIKWANGWANI zoluka ndi m'gulu la zinthu zosunthika kulongedza katundu. Amakhala ndi kukana kwamphamvu kwamankhwala (kupatulapo oxidizing amphamvu), kuthamanga kwambiri, kutentha kwambiri, komanso kulimba mtima kwambiri. Samakonda kufewetsa kapena kutulutsa kutentha kwambiri komanso amawonetsa kukana bwino kwa abrasion.

Pomvetsetsa ubwino ndi malire a mitundu yosiyanasiyana ya kulongedza kwa PTFE, mukhoza kusankha mankhwala omwe angagwirizane bwino ndi mpope wanu wa axial split kesi kapena valve process kusindikiza zofunika.