Los ntawm Andy los ntawm Baiyear Hoobkas
Tshaj tawm rau lub Kaum Ib Hlis 2, 2022
Ntawm no yog lub chaw xov xwm ntawm Baiyear txoj kev txhaj tshuaj molding kev lag luam.Tom ntej no, Baiyear yuav faib cov txheej txheem txhaj tshuaj molding rau hauv ob peb nqe lus los qhia txog kev txheeb xyuas cov ntaub ntawv raw ntawm cov txheej txheem txhaj tshuaj molding, vim tias muaj ntau cov ntsiab lus.Tom ntej no yog thawj tsab xov xwm.
(1).PS (polystyrene)
1. Kev ua haujlwm ntawm PS:
PS yog amorphous polymer nrog fluidity zoo thiab nqus dej tsawg (tsawg dua 00.2%).Nws yog cov yas pob tshab uas yooj yim rau kev tsim thiab txheej txheem.Nws cov khoom muaj lub teeb xa tawm ntawm 88-92%, muaj zog tinting zog thiab siab hardness.Txawm li cas los xij, PS cov khoom yog nkig, ua rau muaj kev ntxhov siab sab hauv, muaj cov cua sov tsis zoo (60-80 ° C), tsis muaj tshuaj lom, thiab muaj qhov tshwj xeeb nqus ntawm 1.04g \ cm3 (me ntsis loj dua dej).
Moulding shrinkage (tus nqi feem ntau yog 0.004-0.007in / hauv), pob tshab PS - lub npe no tsuas yog qhia qhov pom ntawm cov resin, tsis yog crystallinity.(Cov khoom siv tshuaj lom neeg thiab lub cev: PSs lag luam feem ntau yog pob tshab, cov khoom siv amorphous. PS muaj cov khoom zoo geometric stability, thermal stability, optical transmission zog, hluav taws xob insulating zog, thiab ib tug me me nyiam nqus dej noo. , tab sis tuaj yeem corroded los ntawm muaj zog oxidizing acids xws li concentrated sulfuric acid, thiab tuaj yeem o thiab deform hauv qee cov kuab tshuaj organic.)
2. Txheej txheem nta ntawm PS:
Lub melting point ntawm PS yog 166 ° C, qhov kub thiab txias yog feem ntau 185-215 ° C, thiab melting kub yog 180 ~ 280 ° C.Rau cov khoom siv hluav taws xob hluav taws xob, qhov txwv siab tshaj plaws yog 250 ° C, thiab qhov kub ntawm qhov decomposition yog li 290 ° C, yog li nws qhov kub thiab txias yog qhov dav.
Cov pwm kub yog 40 ~ 50 ℃, qhov kev txhaj tshuaj siab: 200 ~ 600bar, kev txhaj tshuaj nrawm yog pom zoo kom siv cov kev txhaj tshuaj nrawm, thiab cov neeg khiav dej num thiab cov rooj vag tuaj yeem siv txhua hom rooj vag.PS cov ntaub ntawv feem ntau tsis tas yuav qhuav ua ntej ua haujlwm tshwj tsis yog khaws cia tsis raug.Yog tias yuav tsum tau ziab, qhov kev pom zoo kom qhuav yog 80C rau 2 ~ 3 teev.
Vim tias cov cua sov tshwj xeeb ntawm PS, qee cov pwm tuaj yeem ua kom sai sai thiab ruaj khov thaum lawv ua kom cov cua sov dissipate.Qhov txias txias yog nrawm dua li cov khoom siv raw zoo tib yam, thiab lub sijhawm qhib pwm tuaj yeem ua ntej.Lub sijhawm plasticizing thiab lub sijhawm txias yog luv, thiab lub sijhawm molding yuav raug txo;lub gloss ntawm PS cov khoom yog zoo dua li cov pwm kub nce.
3.Cov ntawv thov: ntim cov khoom (cov thawv, lub kaus mom, lub raj mis), cov khoom siv kho mob pov tseg, cov khoom ua si, khob, riam, daim kab xev reels, cua daj cua dub qhov rais thiab ntau yam khoom ua npuas ncauj - qe cartons.Nqaij thiab nqaij qaib ntim cov tais, lub raj mis daim ntawv lo thiab foamed PS cushioning cov ntaub ntawv, cov khoom ntim, cov khoom siv hauv tsev (cov tais diav, tais, thiab lwm yam), hluav taws xob (pob tshab ntim, lub teeb diffusers, insulating films, thiab lwm yam).
(2).HIPS (hloov polystyrene)
1. Kev ua haujlwm ntawm HIPS:
HIPS yog cov khoom hloov kho ntawm PS.Nws muaj 5-15% roj hmab tivthaiv hauv cov molecule.Nws cov tawv tawv yog li plaub npaug siab dua li ntawm PS, thiab nws lub zog cuam tshuam tau zoo heev (siab cuam tshuam polystyrene).Nws muaj nplaim retardant qib thiab kev nyuaj siab tawg kuj.qib, qib siab gloss, qib siab cuam tshuam lub zog, qib iav fiber reinforced, thiab qib qis residual volatile.
Lwm yam khoom tseem ceeb ntawm tus qauv HIPS: khoov lub zog 13.8-55.1MPa;tensile zog 13.8-41.4MPa;elongation ntawm so 15-75%;ceev 1.035-1.04 g / ml;Qhov zoo.HIPS cov khoom yog opaque.HIPS muaj qhov nqus dej tsawg thiab tuaj yeem ua tiav yam tsis muaj kev ziab ua ntej.
2. Txheej txheem nta ntawm HIPS:
Vim tias HIPS molecule muaj 5-15% roj hmab, uas cuam tshuam rau nws cov fluidity rau qee qhov, qhov kev txhaj tshuaj thiab molding kub yuav tsum siab dua.Nws qhov txias txias yog qeeb dua li ntawm PS, yog li kev tuav kom txaus, tuav lub sijhawm thiab lub sijhawm txias yog xav tau.Lub voj voog molding yuav ntev dua me ntsis ntawm PS, thiab kev ua haujlwm kub feem ntau yog 190-240 ° C.
HIPS resins nqus noo noo maj mam, yog li ziab feem ntau tsis tas yuav tsum tau.Qee zaum cov dej noo ntau dhau ntawm cov khoom tuaj yeem nqus tau, cuam tshuam rau qhov zoo ntawm cov khoom kawg.Cov dej noo ntau tuaj yeem raug tshem tawm los ntawm ziab ntawm 160 ° F rau 2-3 teev.Muaj qhov tshwj xeeb "dawb ntug" teeb meem hauv HIPS qhov chaw, uas tuaj yeem txhim kho los ntawm kev nce pwm kub thiab clamping quab yuam, txo qhov tuav lub siab thiab lub sijhawm, thiab lwm yam, thiab cov qauv dej hauv cov khoom yuav pom tseeb dua.
4.Tseem siv cov cheeb tsam: Cov chaw thov tseem ceeb yog cov ntim khoom thiab cov khoom siv pov tseg, cov cuab yeej siv, cov khoom siv hauv tsev, cov khoom ua si thiab cov khoom lom zem, thiab kev tsim kho kev lag luam.Nplaim hluav taws kub qib (UL V-0 thiab UL 5-V), cuam tshuam-resistant polystyrene tau tsim thiab dav siv hauv TV casings, cov tshuab ua lag luam thiab cov khoom siv hluav taws xob.
Txhawm rau txuas ntxiv, yog tias koj xav paub ntau ntxiv, thov koj xav tiv tauj peb.Baiyear yog lub koom haum loj loj ua ke nrog cov yas pwm tsim, txhaj tshuaj molding thiab cov ntawv hlau ua.Lossis koj tuaj yeem ua tib zoo mloog mus rau lub chaw xov xwm ntawm peb lub vev xaib official: www.baidasy.com , peb tseem yuav hloov kho cov xov xwm kev paub txog kev txhaj tshuaj molding kev lag luam.
Hu rau: Andy Yang
Dab tsi yog app: +86 13968705428
Email: Andy@baidasy.com
Post lub sij hawm: Nov-29-2022
