Cov pwm yas yog ib lo lus luv rau cov pwm ua ke siv rau kev nias molding, extrusion molding, txhaj tshuaj molding, tshuab molding thiab ua npuas dej tsawg. Kev hloov pauv sib koom ua ke ntawm cov pwm convex thiab concave pwm thiab cov txheej txheem molding pabcuam tuaj yeem ua tiav ntau yam khoom yas ntawm ntau yam duab thiab ntau qhov ntau thiab tsawg. Cov pwm yas yog leej niam ntawm kev lag luam, thiab cov khoom tshiab tso tawm tam sim no cuam tshuam nrog cov yas.

Nws feem ntau suav nrog cov pwm poj niam nrog lub qhov sib txawv uas muaj cov pwm poj niam ua ke, cov pwm poj niam thiab cov pwm poj niam ua ke daim npav, thiab cov pwm convex ua ke, cov pwm convex, cov pwm txiv neej ua ke daim npav, cov khoom txiav qhov thiab Lub punch nrog lub hauv paus sib txawv uas muaj cov phaj sib xyaw sab.
Yuav kom txhim kho kev ua tau zoo ntawm cov yas, ntau yam khoom siv pabcuam, xws li cov khoom sau, cov khoom siv yas, cov roj nplua nyeem, cov khoom ruaj khov, cov xim, thiab lwm yam, yuav tsum tau ntxiv rau hauv cov polymer kom ua cov yas nrog kev ua tau zoo.

1. Cov roj hmab ua los ntawm cov khoom siv yog cov khoom tseem ceeb tshaj plaws ntawm cov yas, thiab nws cov ntsiab lus hauv cov yas feem ntau yog 40% txog 100%. Vim tias cov ntsiab lus loj, thiab qhov xwm txheej ntawm cov roj hmab feem ntau txiav txim siab qhov xwm txheej ntawm cov yas, tib neeg feem ntau suav tias cov roj hmab ua ib qho lus txhais rau cov yas. Piv txwv li, tsis meej pem polyvinyl chloride resin nrog polyvinyl chloride plastics, thiab phenolic resins nrog phenolic plastics. Qhov tseeb, cov roj hmab thiab yas yog ob lub tswv yim sib txawv. Cov roj hmab yog cov polymer nyoos tsis tau ua tiav uas tsis yog siv los ua cov yas xwb, tab sis kuj yog cov khoom siv raw rau cov txheej, cov nplaum, thiab cov xov hluavtaws. Ntxiv rau ib feem me me ntawm cov yas uas muaj 100% roj hmab, feem ntau cov yas xav tau lwm yam khoom ntxiv rau cov roj hmab tseem ceeb.

2. Cov Khoom Siv Sau Cov khoom siv sau kuj tseem hu ua cov khoom sau, uas tuaj yeem txhim kho lub zog thiab kev tiv taus cua sov ntawm cov yas thiab txo cov nqi. Piv txwv li, kev ntxiv cov hmoov ntoo rau hauv cov phenolic resin tuaj yeem txo cov nqi ntau heev, ua rau cov yas phenolic yog ib qho ntawm cov yas pheej yig tshaj plaws, thaum tseem txhim kho lub zog kho tshuab. Cov khoom sau tuaj yeem muab faib ua ob hom: cov khoom sau organic thiab cov khoom sau inorganic, cov qub xws li hmoov ntoo, ntaub, ntawv thiab ntau yam ntaub fibers, thiab qhov kawg xws li iav fiber, diatomaceous av, asbestos, thiab carbon dub.

3. Cov Khoom Siv Yas Cov khoom siv yas tuaj yeem ua rau cov yas muaj zog thiab yooj ywm dua, txo qhov brittleness, thiab ua rau cov yas yooj yim rau kev ua thiab duab. Cov khoom siv yas feem ntau yog cov organic sib xyaw ua ke uas kub heev uas sib xyaw nrog cov resin, tsis muaj tshuaj lom, tsis muaj ntxhiab, thiab ruaj khov rau lub teeb thiab cua sov. Cov feem ntau siv yog phthalate esters. Piv txwv li, hauv kev tsim cov yas polyvinyl chloride, yog tias ntxiv ntau cov khoom siv yas, cov yas polyvinyl chloride mos tuaj yeem tau txais; yog tias tsis muaj lossis tsawg dua cov khoom siv yas ntxiv (tus nqi <10%), cov yas polyvinyl chloride tawv tuaj yeem tau txais.

4. Cov Khoom Siv Ruaj Khoov Yuav kom tiv thaiv cov yas yas kom tsis txhob lwj thiab puas tsuaj los ntawm lub teeb thiab cua sov thaum lub sijhawm ua thiab siv, thiab kom ntev lub neej kev pabcuam, yuav tsum ntxiv cov khoom siv ruaj khov rau hauv cov yas. Cov khoom siv feem ntau yog stearate thiab epoxy resin.

5. Cov Tshuaj Pleev Xim Cov tshuaj pleev xim tuaj yeem ua rau cov yas muaj ntau yam xim ci thiab zoo nkauj. Feem ntau siv cov xim organic thiab cov xim inorganic ua cov tshuaj pleev xim.

6. Cov roj nplua nyeem Lub luag haujlwm ntawm cov roj nplua nyeem yog los tiv thaiv cov yas kom tsis txhob lo rau cov pwm hlau thaum lub sijhawm molding, thiab tib lub sijhawm ua rau qhov chaw ntawm cov yas du thiab zoo nkauj. Cov roj nplua nyeem feem ntau siv suav nrog stearic acid thiab nws cov ntsev calcium thiab magnesium. Ntxiv rau cov khoom ntxiv saum toj no, cov tshuaj tiv thaiv hluav taws, cov neeg ua npuas dej, cov neeg ua haujlwm tiv thaiv hluav taws xob, thiab lwm yam kuj tuaj yeem ntxiv rau cov yas.