Lub zog, hardness thiab lub zog ntawm PTFE cov khoom, kuj me me.Nws lub zog tensile yog 21-28 MPa, khoov lub zog yog 11-14 MPa thiab elongation yog 250% -300%.Nws yuav deform nyob rau hauv lub sij hawm ntev kev nyuaj siab thiab yog nquag mus creep thaum overloaded.Cov yam ntxwv ua haujlwm saum toj no ntawm PTFE, ua rau cov txheej txheem tshwj xeeb thaum sivPTFE zaj duab xis skiving tshuabtxiav.
1. Me me txiav quab yuam.Vim yog qhov nruj, lub zog, thiab hardness ntawm PTFE yog tsawg, nyob rau hauv tib txoj kev txiav, lub ntsiab txiav quab yuam ntawm txiav 45 steel yog 14-20 npaug ntawmzaj duab xis skivingPTFE khoom.
2. PTFE zaj duab xis muaj ib tug me me thermal conductivity, tsuas yog 0.27W / MK-1, ua ke nrog ib tug qis kub-resistant kub, nws kub-resistant kub tsuas yog 250 ℃.Yog hais tias zaj duab xis skiving ntim loj heev, txiav ceev yog siab, thiab txiav kub ntawm lub workpiece yuav nce, uas yuav soften cov khoom PTFE, thiab txawm yaj, coking, thiab "nplaum riam" tshwm sim.Ua ntej cov txheej txheem txiav, qhov khoob yog kho nrog cov txheej txheem ntawm 30-50 degrees Celsius siab tshaj qhov ua haujlwm kub thiab lub sijhawm kho ntawm 24h lossis ntau dua, kom ruaj khov qhov tseeb qhov tseeb ntawm cov txheej txheem skiving.
3. Teflon muaj cov coefficient loj ntawm thermal expansion.Yog li ntawd, PTFE cov ntaub ntawv nyob rau hauv cov zaj duab xis skiving txheej txheem yuav ua rau ib tug loj npaum li cas ntawm tshav kub vim kev sib txhuam, yooj yim-rau-toj, thiab workpiece hauv zos overheating.Qhov no ua rau elastic deformation ntawm PTFE workpiece vim tshav kub, uas nws thiaj li cuam tshuam rau qhov zoo ntawm qhov chaw thiab qhov tseeb qhov tseeb ntawm PTFE workpiece.
4. Muab piv rau cov khoom siv hlau, qhov modulus ntawm elasticity ntawm PTFE yog tsawg heev.Thaum txiav cov khoom noj loj dhau los yog qhov ceev nrawm dhau, qhov kev sib txhuam loj dua thiab lub zog siv rau lub workpiece los ntawm cov cuab yeej ua ke.Qhov tshwm sim yog qhov loj deformation ntawm PTFE workpiece, uas cuam tshuam rau qhov tseeb machining ntawm PTFE workpiece.
5 Rau cov yeeb yaj kiab txiav cov kua dej kom ua haujlwm zoo, yuav tsum tau ua raws li cov hauv qab no: kev siv cov dej mos, kev tshuaj xyuas ntau zaus, kev sib ntxiv ntawm biocides, ntxuav cov cuab yeej siv tshuab, tshem tawm cov sludge thiab nplai, premixing ntawm cov dej txiav.
Post lub sij hawm: Nov-25-2022