Kev nqus tshwj xeeb: 0.94-0.96g / cm3
Molding shrinkage: 1.5-3.6%
Kub pwm: 140-220 ℃
Kev ua tau zoo ntawm cov khoom siv
Kev tiv thaiv xeb, hluav taws xob rwb thaiv tsev (tshwj xeeb tshaj yog kev rwb thaiv tsev zaus siab) zoo heev, tuaj yeem chlorinated, hloov kho irradiation, muaj cov iav fiber ntxiv. Polyethylene qis siab muaj qhov kub siab melting, rigidity, hardness thiab lub zog, nqus dej tsawg, cov khoom hluav taws xob zoo thiab tiv thaiv hluav taws xob; polyethylene siab muaj kev ywj pheej zoo, elongation, cuam tshuam lub zog thiab permeability; polyethylene hnyav molecular siab heev muaj lub zog cuam tshuam siab, tiv taus qaug zog thiab hnav tsis kam.
Polyethylene siab qis yog qhov tsim nyog rau kev ua cov khoom tiv taus corrosion thiab cov khoom rwb thaiv tsev; polyethylene siab siab yog qhov tsim nyog rau kev ua cov yeeb yaj kiab, thiab lwm yam.; UHMWPE yog qhov tsim nyog rau kev ua cov khoom nqus dej poob siab, hnav tsis kam thiab kis tau tus mob.
Kev ua tau zoo ntawm kev pwm
1. Khoom siv Crystalline, nqus dej me me, tsis tas yuav qhuav tag, zoo heev, thiab yooj yim rau kev ntxhov siab. Kev txhaj tshuaj siab yog qhov tsim nyog rau kev txhaj tshuaj, qhov kub ntawm cov khoom sib xws, kev sau sai thiab tuav lub siab txaus. Nws tsis tsim nyog siv qhov rooj vag ncaj qha kom tiv thaiv kev ntsws tsis sib xws thiab kev ntxhov siab sab hauv. Ua tib zoo xaiv qhov chaw ntawm lub rooj vag kom tiv thaiv kev ntsws thiab kev hloov pauv.
2. Qhov ntau thiab tsawg ntawm qhov ntsws thiab qhov ntsws loj heev, qhov kev taw qhia pom tseeb, yooj yim rau kev hloov pauv thiab khoov. Qhov ceev txias yuav tsum qeeb, thiab pwm yuav tsum muaj qhov txias thiab lub kaw lus txias.
3. Lub sijhawm ua kom sov yuav tsum tsis txhob ntev dhau, txwv tsis pub yuav lwj thiab kub hnyiab.
4. Thaum cov khoom yas mos mos muaj cov qhov me me, cov pwm tuaj yeem raug yuam kom tawm.
5, Tej zaum yuav muaj kev tawg ntawm cov yaj thiab yuav tsum tsis txhob sib cuag nrog cov kuab tshuaj organic kom tiv thaiv kev tawg.
Lub ntiajteb txawj nqus tshwj xeeb: 1.18-1.20g / cm3
Molding shrinkage: 0.5-0.8%
Kub pwm: 230-320 ℃
Qhov mob qhuav: 110-120 ℃ 8 teev
Kev ua tau zoo ntawm cov khoom siv
Muaj zog cuam tshuam siab, ruaj khov zoo, tsis muaj xim thiab pob tshab, xim zoo, rwb thaiv hluav taws xob zoo, tiv taus corrosion thiab abrasion tsis kam, tab sis tsis muaj lubrication tus kheej, kev ntxhov siab tawg, yooj yim hydrolysis ntawm qhov kub siab, tsis sib xws nrog lwm cov resins.
Nws yog qhov tsim nyog rau kev ua cov khoom me me insulating thiab pob tshab ntawm cov twj paj nruag thiab cov khoom tiv taus kev cuam tshuam.
Kev ua tau zoo ntawm kev pwm
1, cov khoom siv amorphous, zoo thermal stability, ntau yam molding kub, tsis fluidity. Me me noo noo nqus, tab sis rhiab heev rau dej, yuav tsum tau qhuav. Molding shrinkage yog me me, yooj yim yaj tawg thiab kev ntxhov siab concentration, yog li cov pwm mob yuav tsum tau tswj hwm nruj me ntsis, thiab cov khoom yas yuav tsum tau annealed.
2, qhov kub yaj siab, viscosity siab, ntau dua 200g yas qhov chaw, nws yog qhov tsim nyog siv lub tshuab cua sov hom txuas ntxiv nozzle.
3. Kev txias ceev ceev, lub kaw lus nchuav pwm kom ntxhib, luv luv raws li lub hauv paus ntsiab lus, yuav tsum teeb tsa cov khoom txias kom zoo, lub rooj vag yuav tsum tau loj, pwm yuav tsum tau cua sov.
4, qhov kub ntawm cov khoom siv qis dhau yuav ua rau cov khoom tsis muaj zog, cov khoom yas tsis ci ntsa iab, qhov kub ntawm cov khoom siv siab dhau yooj yim ntws tawm ntawm ntug, cov khoom yas yuav tawg. Thaum qhov kub ntawm cov pwm qis, qhov kev ntswj, kev ncab thiab kev cuam tshuam muaj zog siab, thaum qhov kev khoov, kev nias thiab kev sib zog tensile qis. Thaum qhov kub ntawm cov pwm siab tshaj 120 degrees, cov khoom yas qeeb qeeb kom txias thiab yooj yim rau deform thiab lo rau cov pwm.
3. Yas ABS (acrylonitrile butadiene styrene)
Lub zog tshwj xeeb: 1.05g / cm3
Kev txhaj tshuaj molding shrinkage: 0.4-0.7%
Kub pwm: 200-240 ℃
Qhov chaw qhuav: 80-90 ℃ 2 teev
Kev ua tau zoo ntawm cov khoom siv
1, Kev ua tau zoo dua qub, lub zog cuam tshuam siab dua, kev ruaj khov tshuaj lom neeg, cov khoom hluav taws xob zoo.
2 、 Kev sib xyaw zoo nrog 372 iav organic, ua los ntawm ob-xim yas qhov chaw, thiab qhov chaw tuaj yeem ua chrome-plated, tshuaj tsuag xim kho.
3, muaj kev cuam tshuam siab, tiv taus kub siab, nplaim taws retardant, txhim kho, pob tshab thiab lwm yam theem.
4, qhov fluidity yog qhov phem dua li HIPS, zoo dua li PMMA, PC, thiab lwm yam, thiab qhov yooj ywm zoo.
Haum rau kev ua cov khoom siv kho tshuab dav dav, cov khoom siv tiv taus kev hnav, cov khoom sib kis thiab cov khoom siv sib txuas lus.
Kev ua tau zoo ntawm kev pwm
1, cov khoom siv amorphous, nruab nrab fluidity, nqus dej noo, yuav tsum tau qhuav tag, qhov yuav tsum tau ua ntawm cov yas ci ntsa iab yuav tsum tau ua ntej kom qhuav 80-90 degrees, 3 teev.
2. Yuav tsum siv cov khoom kub thiab pwm kub, tiam sis cov khoom kub dhau thiab yooj yim lwj. Rau cov khoom yas uas raug siab, qhov kub pwm yuav tsum yog 50-60 degrees, thiab rau cov khoom yas uas tiv taus kub thiab ci ntsa iab, qhov kub pwm yuav tsum yog 60-80 degrees.
3, Yog tias koj xav daws qhov teeb meem ntawm kev clamping dej, koj yuav tsum txhim kho qhov fluidity ntawm cov khoom, coj cov khoom kub siab, pwm kub siab, lossis hloov cov dej thiab lwm txoj kev.
4, xws li kev tsim cov khoom siv tiv taus cua sov lossis nplaim taws, qhov chaw ntawm pwm tom qab 3-7 hnub ntawm kev tsim khoom yuav tseem yog cov yas lwj, ua rau qhov chaw pwm ci ntsa iab, pwm yuav tsum tau ntxuav raws sijhawm, thaum qhov chaw pwm yuav tsum tau nce qhov chaw tso pa tawm.
Lub zog tshwj xeeb: 0.9-0.91g / cm3
Kev txhaj tshuaj molding shrinkage: 1.0-2.5%
Kub pwm: 160-220 ℃
Cov xwm txheej qhuav: -
Cov khoom siv
Qhov ceev me me, lub zog, kev nruj, kev tawv thiab kev tiv taus cua sov zoo dua li cov polyethylene siab qis, tuaj yeem siv tau ntawm kwv yees li 100 degrees. Cov khoom siv hluav taws xob zoo thiab kev rwb thaiv tsev siab tsis cuam tshuam los ntawm cov av noo, tab sis nws dhau los ua brittle ntawm qhov kub qis thiab tsis tiv taus pwm thiab yooj yim rau laus.
Nws yog tsim rau kev ua cov khoom siv kho tshuab dav dav, cov khoom tiv taus corrosion thiab cov khoom rwb thaiv tsev.
Kev ua tau zoo ntawm kev pwm
1, cov khoom siv crystalline, kev nqus dej me me, yooj yim yaj lub cev tawg, kev sib cuag ntev nrog cov hlau kub yooj yim decomposition.
2, zoo fluidity, tab sis qhov ntau thiab tsawg ntawm shrinkage thiab shrinkage tus nqi loj, yooj yim tshwm sim shrinkage, dent, deformation.
3. Kev txias ceev, lub kaw lus nchuav thiab lub kaw lus txias yuav tsum qeeb qeeb kom yaj cua sov, thiab xyuam xim kom tswj tau qhov kub ntawm lub pwm. Qhov kev taw qhia ntawm qhov kub ntawm cov khoom qis yog qhov pom tseeb, tshwj xeeb tshaj yog thaum kub qis thiab siab. Thaum qhov kub ntawm lub pwm qis dua 50 degrees, cov khoom yas tsis du, yooj yim tsim cov khoom sib xyaw tsis zoo, tawm cov cim, thiab siab dua 90 degrees, yooj yim rau warp thiab deformation.
4, lub phab ntsa yas tuab yuav tsum sib xws, tsis txhob muaj kua nplaum, cov ces kaum ntse, kom tiv thaiv kev ntxhov siab.
Lub zog tshwj xeeb: 1.05g / cm3
Kev txhaj tshuaj molding shrinkage: 0.6-0.8%
Kub pwm: 170-250 ℃
Cov xwm txheej qhuav: -
Kev ua tau zoo ntawm cov khoom siv
Kev rwb thaiv hluav taws xob (tshwj xeeb tshaj yog kev rwb thaiv hluav taws xob siab) zoo heev, tsis muaj xim thiab pob tshab, qhov kis tau lub teeb yog qhov thib ob tsuas yog iav organic, xim, tiv taus dej, thiab tshuaj lom neeg ruaj khov zoo. Lub zog dav dav, tab sis brittle, yooj yim los tsim kev ntxhov siab brittle tawg, tsis tiv taus benzene, roj av thiab lwm yam organic solvents.
Nws yog qhov tsim nyog rau kev ua cov khoom rwb thaiv tsev thiab pob tshab, cov khoom dai kom zoo nkauj thiab cov khoom siv tshuaj lom neeg thiab cov cuab yeej kho qhov muag.
Kev ua tau zoo
1, cov khoom siv amorphous, nqus dej me me, tsis tas yuav qhuav tag, tsis yooj yim rau decompose, tab sis cov coefficient ntawm thermal expansion loj, yooj yim los tsim kev ntxhov siab sab hauv. Zoo flowability, muaj rau ntsia hlau lossis plunger txhaj tshuaj molding tshuab.
2. Qhov kub ntawm cov khoom siv, qhov kub ntawm pwm thiab qhov siab ntawm kev txhaj tshuaj tsawg yog qhov tsim nyog. Kev ncua sijhawm txhaj tshuaj yog qhov zoo rau kev txo qhov kev ntxhov siab sab hauv thiab tiv thaiv kev ntsws thiab kev hloov pauv.
3, muaj ntau hom rooj vag, rooj vag thiab yas arc txuas, kom tsis txhob muaj kev puas tsuaj rau cov khoom yas thaum mus rau lub rooj vag. Lub nqes hav ntawm demoulding yog loj, qhov ejection yog txawm, phab ntsa tuab ntawm cov khoom yas yog txawm, nws zoo dua tsis txhob muaj cov ntxig, yog tias muaj cov ntxig, lawv yuav tsum tau preheated.
Lub sijhawm tshaj tawm: Lub Yim Hli-12-2022