Inkqubo yemveliso yombhobho we-PTFE yile: PTFE, i-extrusion aid → ukuxuba → ukucinezela → ukomisa → sintering → ukupholisa → imveliso
Inkqubo yokubumba imibhobho ye-PTFE ibandakanya indlela yokutyhala, indlela ye-extrusion, indlela ye-hydraulic, indlela ye-welding, indlela yokujija, njl., phakathi kwayo indlela yokutyhala yeyona ndlela iphambili.Ngokuqhelekileyo, i-resin ye-PTFE ehlakaziweyo kunye nobukhulu be-particle ye-500μm kunye nokuxinana okubonakalayo kwe-0.45gml ~ 0.55gml isetyenziswa.Kwimibhobho edayamitha emincinci, sebenzisa iresin enoxinzelelo olukhulu, kwaye kwimibhobho yobukhulu obukhulu, sebenzisa iresin enoxinzelelo oluncinci.Uncedo lokukhama ludla ngokukhetha i-200 kunye ne-260 ye-mineral spirits.Uqhubekeko lwesibini lweItyhubhu ye-PTFEinokuvelisa PTFE ityhubhu eshwabeneyo ubushushu, PTFE spiral tubing, PTFE hydraulic tubing, njl.
Ityhubhu yePolytetrafluoroethylene yenziwe nge-polytetrafluoroethylene dispersed resin kwiqondo lobushushu begumbi kusetyenziswa isinyibilikisi sezinto eziphilayo njenge-extrusion aid, emva koko yomiswe kwaye ifakwe sintered.Ngokobubanzi bombhobho, inokwahlulwa ibe ziindidi ezimbini: umbhobho oqhelekileyo kunye nombhobho omncinci.Ububanzi bangaphakathi bombhobho oqhelekileyo ngu-4mm, kwaye ububanzi bangaphakathi bombhobho omncinci bungaphantsi okanye bulingana no-4mm.
Inkqubo yemveliso yombhobho we-PTFE yile: PTFE, i-extrusion aid → ukuxuba → ukucofa → ukomisa → ukuthambisa → ukupholisa → imveliso.
Imibhobho yePolytetrafluoroethylene inamandla afanelekileyo omatshini.Iigaskets ziigaskets ezisicaba, iigaskets ezimile okwe-V, amakhonkco episton, iigaskets zevalve yebhola, njl.njl., ezenziwe ngayo.PTFE iintonga, iibhubhu, kunye namacwecwe ngokuguqula oomatshini okanye ukusika, ezixhathisa i-corrosion , Ukumelana kunye nokungaqhubekiyo.
1. Imibhobho yeTeflon ngokubanzi ithatha indlela yokubumba i-compression, kunye nokubumba i-plunger extrusion nayo ingasetyenziswa.I-resin efunyenwe yi-dispersion polymerization method inokuqulunqwa nge-paste extrusion kunye ne-calendering.
2. I-PTFE inexabiso le-pH le-0-14 (ngaphandle kweentsimbi ezinyibilikisiweyo zealkali kunye nefluorine phantsi kobushushu obuphezulu kunye noxinzelelo oluphezulu), enokuba namandla omatshini amahle phakathi kwe-100 ° C kunye ne-100 ° C.
3. Iimeko zenkqubo ethile kukuba uxinzelelo lwe-preforming luyahluka ngokuma kunye nobukhulu bemveliso.Kodwa ngokuqhelekileyo isetyenziswa.I-Teflon braided packing yi-8-34.3MPa, kunye ne-resin ene-filler yi-29.4-93MPa.Kuboya obukhulu obunobunzima obumalunga ne-600mm kwicala elicinezelayo, kusekho ixesha lokubamba uxinzelelo lwe-20-30min.Qaphela ukuba xa ubushushu bungaphantsi kwe-185°C.Ityhubhu yeTeflon iya kuba brittle.Igasket ecocekileyo ye-PTFE yimveliso etywiniweyo ecocekileyo engayi kungcolisa nayiphi na into edibana nayo kwaye inokusetyenziswa ngokubanzi kukutya, amayeza kunye nakwamanye amashishini.
Ixesha lokuposa: Aug-04-2020