Dab tsi yog qhov ceev ntawm POM? Kev tsom xam ntawm cov khoom ntawm POM cov ntaub ntawv
Dab tsi yog qhov ceev ntawm POM? Qhov no yog cov lus nug tseem ceeb rau cov kws tshaj lij kev lag luam tshuaj thiab cov khoom siv engineers, POM (Polyoxymethylene) yog cov khoom siv dav siv hauv cov khoom siv hauv kev lag luam, thiab nws qhov ntom ntom muaj qhov cuam tshuam ncaj qha rau nws cov ntawv thov scenarios thiab kev ua tau zoo. Daim ntawv no yuav tshuaj xyuas kom meej qhov ceev ntawm POM, nws cov yam ntxwv cuam tshuam thiab nws qhov tseem ceeb hauv kev siv tswv yim.
1. Kev taw qhia txog cov khoom siv POM
POM (polyoxymethylene) yog cov thermoplastic crystalline heev nrog lub zog siab, hnav tsis kam thiab qis coefficient ntawm kev sib txhuam. Vim tias cov khoom zoo ntawm lub cev no, POM tau siv dav hauv kev tsim cov iav, bearings, slides, fasteners thiab lwm yam khoom siv. Ua ntej sib tham txog "dab tsi yog qhov ceev ntawm POM", nws yog ib qho tsim nyog yuav tsum nkag siab txog cov yam ntxwv ntawm POM, uas yuav pab kom nkag siab zoo dua cov txiaj ntsig ntawm nws qhov ntom ntawm nws qhov kev ua tau zoo. 2.
2. Cov lej ntau ntawm POM ntom ntom
Feem ntau, qhov ceev ntawm POM yog li ntawm 1.41 g / cm³ txog 1.43 g / cm³. Tshwj xeeb, qhov ceev ntawm POM feem ntau cuam tshuam los ntawm cov qauv ntawm nws cov saw hlau polymer thiab cov txheej txheem tsis siv thaum lub sijhawm tsim khoom. Vim tias pom muaj qib siab ntawm crystallinity, qhov no ua rau muaj kev kub ntxhov siab, uas yog nyob rau hauv nruab nrab sab saud ntawm cov kev lag luam plastics. Qhov ntom ntom no tso cai rau POM kom ua tau zoo hauv kev puas tsuaj thiab qhov ruaj khov.
3. Yam cuam tshuam rau POM ntom ntom
Thaum lub sijhawm ntawm cov pom kev tsis sib xws yog qhov ceev dua, qhov ceev ntawm pom me ntsis los ntawm chaw tsim khoom thiab kev ua yeeb yam rau cov xwm txheej. Cov yam ntxwv cuam tshuam rau POM ntom ntom muaj xws li:

Crystallinity: qhov siab dua qhov crystallinity ntawm POM cov khoom, qhov siab dua nws qhov ntom. Ntau dua crystallinity feem ntau txhais tau hais tias cov khoom siv muaj zog zoo dua qub thiab hnav tsis kam.
Fillers thiab additives: Hauv qee daim ntawv thov tshwj xeeb, cov khoom siv los yog cov khoom ntxiv tuaj yeem raug ntxiv los txhim kho cov cua sov los yog cov khoom hluav taws xob ntawm POM. Qhov sib ntxiv ntawm cov ntaub ntawv no yuav hloov me ntsis qhov ntom ntawm POM.
Kev Ua: Cov txheej txheem sib txawv, xws li kev txhaj tshuaj molding, extrusion molding, thiab lwm yam, yuav ua rau muaj kev hloov me ntsis ntawm qhov ntom ntawm POM.

4. POM ntom ntom ntawm kev siv tswv yim ntawm qhov tseem ceeb ntawm
Hauv kev siv tswv yim, kev nkag siab "dab tsi yog qhov ntom ntawm POM" tuaj yeem pab cov engineers xaiv cov khoom tsim nyog. Kev ceev ntau dua feem ntau txhais tau hais tias cov khoom siv muaj cov khoom siv kho tshuab zoo dua, tab sis kuj tseem tuaj yeem ua rau muaj qhov hnyav ntxiv. Hauv qee qhov kev siv qhov hnyav-rhiab, xws li kev tsim khoom siv tsheb, qhov sib npaug ntawm kev ua tau zoo thiab qhov ceev yuav tsum tau pom.
Qhov ntom ntawm POM tseem cuam tshuam rau nws cov yam ntxwv ua haujlwm thiab qhov ruaj khov ntawm cov khoom tiav. Cov khoom siv ntom ntom ntom ntom ntau dua yuav muaj kev tawm hws nyob hauv lub sijhawm siv cov txheej txheem moulding, thaum cov khoom siv ntom ntom ntom ntom nti yuav ua rau muaj qee qhov yuav tsum tau ua.
5. Cov ntsiab lus
Dab tsi qhov ntom ntawm POM yog nyob ntawm ntau yam, suav nrog crystallinity, fillers thiab ua. Feem ntau, POM qhov ntom ntom ntawm 1.41 g / cm³ mus rau 1.43 g / cm³, qhov ntom ntom uas ua rau POM cov ntaub ntawv zoo tshaj hauv ntau daim ntawv thov kev lag luam. Kev nkag siab thiab siv cov yam ntxwv ntom ntom ntawm POM yog qhov tseem ceeb rau kev txhim kho cov khoom lag luam thiab ua kom zoo dua cov txheej txheem tsim khoom.
Peb cia siab tias los ntawm cov kab lus no, koj muaj kev nkag siab tob txog "dab tsi yog qhov ntom ntawm POM". Rau cov engineers uas nrhiav qhov tseeb thiab kev ua tau zoo hauv kev xaiv cov khoom siv thiab daim ntawv thov, qhov kev paub no yuav pab tau zoo siv POM cov ntaub ntawv.