Kev pab tsim polymer yog qhov chaw sib piv rau kev tsim kho tshuab uas tsim cov dundeeb thermoplastic thiab thermoset mus rau hauv cov khoom siv dav thiab zoo ib yam. Nws yog qhov tseemceeb tshaj plaws hauv kev lag luam ntawm cov dundeeb, pab tau rau kev tsim kho ntau nrog kev nyab xeeb. Qhov kev tsim kho no muaj peev xwm siv ntau yam khoom siv, los ntawm cov polyolefins zoo li polyethylene thiab polypropylene mus rau cov dundeeb siv tshuab zoo dua zoo li PEEK thiab PVDF. Txoj kev kho mob ntawm kev tsim kho polymer txhawj xeeb ntau rau kev paub txog kev sib hloov ntawm polymer—yog li cas cov dundeeb hlav hluas sib npaug thiab txawj ua haujlwm saum kub thiab zog. Cov ntaub ntawv tseemceeb hauv kev tsim kho muaj feem cuab tus neeg sau npe, uas tswj qhov muag; daim ntawv cai kub ntawm barrel, uas tswj kev hlav thiab kub ntawm dundeeb hlav; thiab zog ntawm die head, uas yuav tsum nyob deb kom muaj qhov sib xws rau cov khoom siv. Qhov kev pab tshuab no tsis yog tsuas yog rau cov dundeeb ruaj ruaj, nws kuj muaj kev tsim kho sheet rau tsim cov dundeeb flat, kev tsim kho film hlav rau tsim cov duab dundeeb thiab kev siv khoom, thiab co-extrusion rau kev sib xyeeb ntau lub hauv qab ntawm ntau yam polymer sib txawv rau hauv ib qhov chaw kom muaj kev tshwm sim uas tsis tuaj yeem muaj los ntawm ib yam khoom siv. Kev tsim kho polymer yog ib qhov kev lag luam tshiab, uas hlo tshuaj nrog kev pab pawg tshiab hauv kev tsim kho tshuab, kev tswj hwm kev tsim kho tshuab, thiab kev tsim kho tshiab ntawm cov dundeeb thiab cov dundeeb sib xyeeb, uas txiav txim siab nws txoj haujlwm tshaj tawm tias yog ib qhov kev tsim kho tseemceeb thiab muaj kev tswj hwm.