Cov txheej txheem tsim khoom ntawmPTFE rajyog: PTFE, extrusion pab → sib tov → nias → ziab → sintering → txias → khoom
Cov txheej txheem molding ntawm PTFE raj muaj xws li txoj kev thawb, txoj kev extrusion, txoj kev hydraulic, txoj kev vuam, txoj kev winding, thiab lwm yam, ntawm cov uas txoj kev thawb yog txoj kev tseem ceeb. Feem ntau, siv cov PTFE resin dispersed nrog cov khoom me me ntawm 500μm thiab qhov ceev pom tseeb ntawm 0.45gml ~ 0.55gml. Rau cov raj me me, siv cov resin nrog kev nias loj, thiab rau cov raj loj, siv cov resin nrog kev nias me me. Cov khoom siv nias feem ntau xaiv 200 thiab 260 cov ntxhia dej. Kev ua tiav theem ob ntawm PTFE raj tuaj yeem tsim cov PTFE cua sov-shrinkable tubing, PTFE spiral tubing, PTFE hydraulic tubing, thiab lwm yam.
Lub raj polytetrafluoroethylene yog ua los ntawm polytetrafluoroethylene dispersed resin ntawm chav tsev kub siv cov organic solvent ua extrusion pab, thiab tom qab ntawd ziab thiab sintered. Raws li lub raj txoj kab uas hla, nws tuaj yeem muab faib ua ob hom: lub raj ib txwm thiab lub raj me me. Lub txoj kab uas hla sab hauv ntawm lub raj ib txwm yog 4 hli, thiab lub txoj kab uas hla sab hauv ntawm lub raj me me yog tsawg dua lossis sib npaug rau 4 hli.
Cov txheej txheem ntau lawm ntawm PTFE raj yog: PTFE, extrusion pab → sib tov → nias → ziab → sintering → txias → khoom.
Cov raj polytetrafluoroethylene muaj lub zog zoo. Cov gaskets yog cov gaskets tiaj tus, V-puab gaskets, piston rings, pob valve gaskets, thiab lwm yam., Uas yog ua los ntawm PTFE rods, raj, thiab phaj los ntawm kev tig lossis txiav tshuab, uas yog corrosion resistant, tsis kam thiab tsis conductivity.
1. Cov raj Teflon feem ntau siv txoj kev molding, thiab plunger extrusion molding kuj siv tau. Cov resin uas tau los ntawm txoj kev dispersion polymerization tuaj yeem tsim los ntawm kev muab tshuaj txhuam extrusion thiab calendering.
2. PTFE muaj tus nqi pH ntawm 0-14 (tshwj tsis yog cov hlau alkali molten thiab fluorine nyob rau hauv qhov kub thiab txias siab), uas tuaj yeem muaj lub zog zoo ntawm 100 ° C thiab 100 ° C.
3. Cov txheej txheem tshwj xeeb yog tias lub siab ua ntej hloov pauv nrog cov duab thiab qhov loj ntawm cov khoom. Tab sis nws feem ntau yog siv. Teflon braided packing yog 8-34.3MPa, thiab cov resin nrog filler yog 29.4-93MPa. Rau cov plaub loj nrog tuab ntawm li 600mm hauv qhov kev taw qhia nias, tseem muaj lub sijhawm tuav siab ntawm 20-30 feeb. Nco ntsoov tias thaum qhov kub qis dua 185 ° C. Teflon tubing yuav dhau los ua brittle. PTFE gasket ntshiab yog cov khoom sib khi huv si uas yuav tsis ua rau muaj kuab paug rau txhua yam khoom uas nws kov thiab tuaj yeem siv dav hauv zaub mov, tshuaj thiab lwm yam lag luam.
Lub sijhawm tshaj tawm: Lub Kaum Hli-13-2023