Yas Pwm Qauv

Nws feem ntau suav nrog cov pwm concave nrog cov kab noj hniav sib txawv ntawm qhov sib txawv ntawm cov pwm sib xyaw ua ke hauv paus phaj, concave pwm sib dhos thiab concave pwm ua ke daim ntawv phaj. Ib qho punch nrog ib qho tseem ceeb sib txawv ntawm qhov sib txuas ntawm sab-txiav panels.
Txhawm rau txhim kho cov kev ua tau zoo ntawm cov yas, ntau yam khoom siv, xws li muab tub lim, plasticizers, lubricants, stabilizers, colorants, thiab lwm yam, yuav tsum tau ntxiv rau cov khoom siv polymer los ua cov yas nrog kev ua haujlwm zoo.
1. Synthetic resin yog cov khoom tseem ceeb ntawm cov yas, thiab nws cov ntsiab lus hauv plastics feem ntau yog 40% txog 100%. Vim nws cov ntsiab lus loj thiab cov khoom ntawm cov resin feem ntau txiav txim siab cov khoom ntawm cov yas, tib neeg feem ntau suav hais tias resin yog ib lub ntsiab lus ntawm cov yas. Piv txwv li, polyvinyl chloride resin thiab polyvinyl chloride yas, phenolic resin thiab phenolic yas tsis meej pem. Qhov tseeb, resin thiab yas yog ob lub ntsiab lus sib txawv. Resin yog cov khoom siv raw, raw khoom siv tsis tau tsuas yog los ua cov yas, tab sis kuj yog cov khoom siv raw rau txheej, nplaum thiab hluavtaws fibers. Tsuas yog ib feem me me ntawm cov yas uas muaj 100% resin, feem ntau cov yas yuav tsum tau ntxiv lwm cov tshuaj ntxiv rau cov khoom tseem ceeb.
2. Ntim
Fillers, tseem hu ua fillers, tuaj yeem txhim kho lub zog thiab kub tsis kam ntawm cov yas thiab txo cov nqi. Piv txwv li, ntxiv ntoo hmoov rau phenolic resin tuaj yeem txo tus nqi zoo heev, ua phenolic yas yog ib qho ntawm cov yas uas pheej yig tshaj plaws, thiab nws tuaj yeem txhim kho lub zog txhua yam. Fillers tuaj yeem muab faib ua cov organic fillers thiab inorganic fillers, cov qub xws li ntoo hmoov, rags, ntawv thiab ntau yam ntaub fibers, thiab lwm yam, thiab tom kawg xws li iav fiber, diatomaceous ntiaj teb, asbestos, carbon dub, thiab lwm yam.
3. Plasticizer
Plasticizers tuaj yeem ua kom cov yas thiab softness ntawm cov yas, txo cov brittleness, thiab ua kom cov yas yooj yim rau kev ua thiab cov duab. Plasticizers feem ntau yog kub-boiling organic tebchaw uas yog miscible nrog resin, yog non-toxic, ntxhiab tsw, thiab ruaj khov rau lub teeb thiab kub. Feem ntau siv plasticizers yog phthalates. Piv txwv li, thaum tsim cov yas polyvinyl chloride, yog tias ntxiv cov yas yas ntxiv, cov yas mos polyvinyl chloride yuav tau txais. Yog tias tsis muaj lossis tsawg dua cov yas yas ntxiv (tus nqi tsawg dua 10%), cov yas tawv polyvinyl chloride yuav tau txais. .
4. Stabilizer
Txhawm rau tiv thaiv cov khoom siv hluavtaws los ntawm kev decomposed thiab puas los ntawm lub teeb thiab cua sov thaum ua thiab siv, thiab kom ntev nws cov kev pab cuam lub neej, stabilizers yuav tsum tau ntxiv rau cov yas. Feem ntau siv xws li stearate, epoxy resin, thiab lwm yam.
5. Xim xim
Colorants muab yas ntau yam xim ci, zoo nkauj. Organic dyes thiab inorganic pigments feem ntau yog siv los ua cov xim.
6. Lubricant
Lub luag haujlwm ntawm cov roj nplua nyeem yog txhawm rau tiv thaiv cov yas los ntawm kev ua raws li cov hlau pwm thaum lub sij hawm molding thiab ua kom lub ntsej muag ntawm cov yas du thiab zoo nkauj. Feem ntau siv lubricants muaj xws li stearic acid thiab nws cov calcium thiab magnesium ntsev. Ntxiv rau cov tshuaj ntxiv uas tau hais los saum toj no, cov nplaim hluav taws kub hnyiab, cov khoom ua npuas dej, cov tshuaj tiv thaiv kab mob, thiab lwm yam tuaj yeem muab ntxiv rau cov yas.