Inkqubo yemvelisoItyhubhu ye-PTFEyi: PTFE, uncedo lokukhupha izinto → ukuxuba → ukucinezela → ukomisa → ukuthulula → ukupholisa → imveliso
Inkqubo yokubumba iityhubhu zePTFE ibandakanya indlela yokutyhala, indlela yokukhupha, indlela ye-hydraulic, indlela yokuwelda, indlela yokujija, njl.njl., apho indlela yokutyhala iyeyona ndlela iphambili. Ngokubanzi, kusetyenziswa i-resin yePTFE esasazekileyo enobukhulu besuntswana obuyi-500μm kunye noxinano olubonakalayo lwe-0.45gml ~ 0.55gml. Kwiityhubhu ezincinci zobubanzi, sebenzisa i-resin enoxinzelelo olukhulu, kwaye kwiityhubhu ezinkulu zobubanzi, sebenzisa i-resin enoxinzelelo oluncinci. I-squeeze aid idla ngokukhetha i-200 kunye ne-260 mineral spirits. Ukucubungula okwesibini kweetyhubhu zePTFE kunokuvelisa iityhubhu zePTFE ezinciphayo ngobushushu, iityhubhu zePTFE ezijikelezayo, iityhubhu zePTFE ezimanzi, njl.njl.
Ityhubhu yePolytetrafluoroethylene yenziwe nge-resin esasazekileyo ye-polytetrafluoroethylene kubushushu begumbi kusetyenziswa i-organic solvent njengoncedo lokukhupha, ize yomiswe ize itshiswe. Ngokwe-diameter yetyhubhu, inokwahlulwa ibe ziintlobo ezimbini: ityhubhu eqhelekileyo kunye netyhubhu encinci. Ububanzi bangaphakathi betyhubhu eqhelekileyo yi-4mm, kwaye ububanzi bangaphakathi betyhubhu encinci bungaphantsi okanye bulingana ne-4mm.
Inkqubo yokuvelisa ityhubhu ye-PTFE yile: i-PTFE, uncedo lokukhupha izinto → ukuxuba → ukucinezela → ukomisa → ukuthulula izinto → ukupholisa → imveliso.
Iityhubhu zePolytetrafluoroethylene zinamandla amahle oomatshini. Iigasket ziigasket ezisicaba, iigasket ezimile okwe-V, iiringi zepiston, iigasket zevalvu yebhola, njl.njl., ezenziwe ngeentonga zePTFE, iityhubhu, kunye neeplate ngokujika okanye ukusika ngoomatshini, ezimelana nokugqwala, ezixhathisayo kwaye ezingaqhubi kakuhle.
1. Iityhubhu zeTeflon zihlala zisebenzisa indlela yokubumba ucinezelo, kwaye ukubumba ulwelo lwe-plunger extrusion nako kungasetyenziswa. I-resin efunyenwe ngendlela ye-dispersion polymerization inokwenziwa ngokucola ulwelo kunye ne-calendering.
2. I-PTFE inexabiso le-pH eliphakathi kwe-0-14 (ngaphandle kweentsimbi ze-alkali ezinyibilikisiweyo kunye ne-fluorine phantsi kobushushu obuphezulu kunye noxinzelelo oluphezulu), ezinokuba namandla afanelekileyo oomatshini phakathi kwe-100°C kunye ne-100°C.
3. Iimeko ezithile zenkqubo kukuba uxinzelelo lwangaphambi kokwenza luyahluka ngokwemilo kunye nobukhulu bemveliso. Kodwa idla ngokusetyenziswa. Ukupakisha okulukiweyo kweTeflon yi-8-34.3MPa, kwaye i-resin ene-filler yi-29.4-93MPa. Kwiboya obukhulu obunobukhulu obumalunga ne-600mm kwicala lokucinezela, kusekho ixesha lokubamba uxinzelelo le-20-30min. Qaphela ukuba xa ubushushu buphantsi kwe-185°C. Iityhubhu zeTeflon ziya kuba buthathaka. I-PTFE gasket ecocekileyo yimveliso yokutywina ecocekileyo engayi kungcolisa nayiphi na into edibana nayo kwaye ingasetyenziswa kakhulu ekutyeni, kumayeza nakwamanye amashishini.
Ixesha lokuthumela: Okthobha-13-2023