PS (Polystyrene) kev txhaj tshuaj molding yog txheej txheem ntawm kev txhaj tshuaj molten polystyrene rau hauv pwm nyob rau hauv siab los tsim cov yas xav tau. Nws yog ib txoj hauv kev zoo thiab ntau yam vim yog polystyrene cov khoom muaj txiaj ntsig, nrog rau cov dej ntws zoo, qhov ruaj khov, thiab yooj yim ntawm cov xim.
PS Yas yog dab tsi?
Polystyrene, feem ntau hu ua PS, yog cov khoom siv yas dav siv hauv kev txhaj tshuaj molding. Nws yog tus nqi -zoo thiab ntau yam thermoplastic uas tuaj yeem ua rau ntau yam duab thiab ntau thiab tsawg.Nws muaj nyob rau hauv ntau hom, suav nrog General Purpose Polystyrene (GPPS) thiab High Impact Polystyrene (HIPS):
GPPS (General Purpose Polystyrene): Paub txog nws qhov pom tseeb, nruj, thiab du nto.
HIPS (High Impact Polystyrene): Hloov kho kom muaj kev cuam tshuam ntau ntxiv, ua rau nws tawv thiab ruaj khov dua li GPPS.
Polystyrene qhov sib npaug ntawm lub zog, nruj, thiab pom tseeb ua rau nws zoo tagnrho rau cov khoom uas xav tau kev pom kev pom thiab kev ruaj ntseg.
Cov Khoom Tseem Ceeb ntawm Polystyrene (PS)
Polystyrene qhov tshwj xeeb ua ke ntawm cov khoom siv kho tshuab thiab zoo nkauj ua rau nws muaj kev xaiv zoo rau ntau yam kev siv:
1. Siab Rigidity thiab muaj zog
Polystyrene muaj qhov nruj nruj thiab lub zog ntawm cov qauv, ua rau nws tsim nyog rau qhov chaw uas tswj cov duab thiab tiv taus lub teeb pom kev zoo. Nws rigidity ua rau molding rau hauv cov duab meej thiab tuav qhov ntev npaum li cas yooj yim.
2. Clarity thiab Glossy tiav
GPPS paub txog nws cov siv lead ua- pom meej, tso cai rau lub teeb kis tau zoo, zoo ib yam li iav. Qhov no optical clarity thiab glossy tiav yog zoo tagnrho rau cov ntaub ntawv pob tshab xws li cov ntaub ntawv thiab npog.
3. Tus nqi qis
Polystyrene yog ib qho ntawm cov thermoplastics uas pheej yig tshaj plaws, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau siab - ntim ntau lawm thiab nqi- cov haujlwm tseem ceeb. Nws cov nqi qis, ua ke nrog kev ua haujlwm tau zoo, pab cov tuam ntxhab nyob hauv cov peev nyiaj tsis muaj kev cuam tshuam rau qhov zoo.
4. Kev ua haujlwm yooj yim
Polystyrene cov yam ntxwv ntws ua rau nws yooj yim rau pwm, tso cai rau lub sijhawm nrawm nrawm thiab muaj peev xwm nkag siab. Qhov kev ua tau zoo no tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv kev txhaj tshuaj molding, qhov ntau lawm ceev tuaj yeem cuam tshuam rau tus nqi -kev ua tau zoo.
5. Zoo Dimensional Stability
Polystyrene tus nqi qis qis thiab siab ruaj khov kom ntseeg tau tias cov khoom muaj qhov loj thiab zoo ib yam, txawm tias nyob rau hauv siab - daim ntawv thov precision. Qhov kev sib xws no yog qhov tseem ceeb rau cov khoom lag luam uas yuav tsum tau ua kom nruj nruj.
6. Lub teeb hnyav
Polystyrene qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ua rau nws lub teeb yuag thiab zoo tagnrho rau cov ntawv thov xws li ntim khoom, qhov txo qhov hnyav thauj khoom tuaj yeem ua rau txuag nqi.
PS Txhaj Molding yog dab tsi?
PS (Polystyrene) kev txhaj tshuaj molding yog qhov ua tau zoo thiab tus nqi - cov txheej txheem tsim tau zoo siv los tsim cov khoom siv siab- cov khoom yas nrog qhov pom tseeb zoo, qhov ruaj khov, thiab rigidity. Nws yog tshwj xeeb tshaj yog haum rau cov khoom uas yuav tsum tau ib tug huv si nto tag, nruj tolerances, thiab optical kev ua tau zoo.
Pwm Tsim: PS molding tsim qhia txog cov phab ntsa tuab thiab cov ntsiab lus ntse kom tsis txhob muaj cov cim dab dej thiab ua kom pom qhov sib xws.
PS Txhaj Txheej Txheem: Polystyrene pellets yog yaj thiab txhaj rau hauv cov pwm kev cai ntawm qhov kub ua haujlwm qis, tso cai rau kev sib tw thiab lub sijhawm nrawm.
Cooling & Ejection: Kev ua kom txias ceev yog tswj kom muaj qhov tseeb ntawm qhov tseeb thiab txo cov kev ntxhov siab sab hauv, tshwj xeeb tshaj yog rau cov pob tshab.
Ncej -Kev Ua Haujlwm: PS molded qhov chaw tuaj yeem ua haujlwm thib ob xws li luam ntawv, txheej, lossis ultrasonic vuam kom ua tau raws li kev tsim thiab kev tsim khoom lag luam.
Qhov zoo ntawm PS Txhaj Moulding
Polystyrene muaj ntau qhov zoo uas ua rau nws yog cov khoom siv zoo tshaj plaws rau kev siv xws li txhaj tshuaj molded automotive qhov chaw mus rau cov khoom kho mob. Cov thermoplastic no muaj cov yam ntxwv hauv qab no:
Pob tshab
Hauv nws daim ntawv ntshiab (GPPS), polystyrene yog pob tshab nrog 90% lub teeb transmissibility. Nws muab lwm txoj kev pheej yig rau lwm cov yas pob tshab, xws li polycarbonate lossis acrylic. GPPS tuaj yeem nkig, txawm li cas los xij, thiab yog vim li cas HIPS qee zaum siv hloov.
Nyuaj thiab Rigid
HIPS polystyrene muaj nyob nruab nrab ntawm 5% thiab 10% butadiene roj hmab kom nws tawv thiab nruj dua. Cov ntawv thov suav nrog cov khoom siv hluav taws xob tsheb thiab cov tsev hauv computer.
Lub teeb
Polystyrene yog cov yas sib sib zog nqus, uas yog vim li cas nws feem ntau siv hauv cov thawv ntim khoom noj, ntim cov neeg siv khoom, thiab txawm tias qab nthab -mounted pa taws detectors.
Moisture Resistant
Polystyrene tiv taus cov dej noo, uas ua rau nws xaiv zoo rau cov yas cutlery, thiab kuaj thiab cov khoom siv tshawb fawb xws li cov raj kuaj thiab cov tais diav petri.
Impact Resistant
Txawm hais tias GPPS muaj qhov cuam tshuam tsis zoo, HIPS muaj zog txaus los siv rau kev tiv thaiv ntim khoom thiab rov ua dua - siv cov ntawv thov xws li cov tais zaub mov hauv tsev noj mov.
Dimensionally ruaj khov
Txhaj molded polystyrene muaj qhov zoo ntawm qhov ruaj khov. Qhov no yog vim, ib feem, rau nws qhov amorphous, uas txo qis shrinkage tom qab txhaj tshuaj molding. Tsis tas li ntawd, vim tias polystyrene tsis nqus dej, nws yuav tsis o thiab loj tuaj.
Radiation Resistant
Polystyrene muaj ib kilogray (kGy) tus nqi ntawm 10,000, uas txhais tau hais tias nws nqus tau hluav taws xob tsawg heev. Qhov kev tiv thaiv hluav taws xob no yog vim lub nplhaib benzene hauv polystyrene cov mis molecular. Yog li ntawd, polystyrene tuaj yeem raug hluav taws xob rau kev ua kom tsis muaj menyuam thiab yuav tsis raug kev puas tsuaj loj ntawm cov khoom siv kho tshuab.
PS txhaj tshuaj molding txheej txheem yog dab tsi?
Txhaj tshuaj molding
Polystyrene muaj fluidity zoo, ua haujlwm zoo, xim yooj yim, thiab zoo qhov ntev. Muaj kev txhaj tshuaj molding, extrusion, tshuab moulding, ua npuas ncauj, thermoforming, bonding, txheej, vuam, machining, luam ntawv thiab lwm yam kev ua rau ntau yam, tshwj xeeb tshaj yog rau kev txhaj tshuaj molding.
Feem ntau, cov khoom siv tuaj yeem siv ncaj qha yam tsis muaj ziab thaum txhaj tshuaj molding. Txawm li cas los xij, txhawm rau txhim kho qhov zoo ntawm cov khoom, nws tuaj yeem ua ntej- ziab hauv qhov cub tawg ntawm 55 ~ 70℃rau 1 ~ 2h.
Cov txheej txheem ua haujlwm tshwj xeeb yog kwv yees li: qhov kub ntawm txog 200 degree, pwm kub ntawm 60-80 degree, txhaj tshuaj molding kub ntawm 170-220 degree, 60-150 MPa, compression piv ntawm 1.6-4.0.
Tom qab molding cov khoom txhawm rau tshem tawm cov kev ntxhov siab sab hauv, tuaj yeem nyob rau hauv lub teeb infrared lossis moj tej tawg qhov cub ntawm 70℃qhov kub thiab txias kho 2 ~ 4h.
Extrusion molding
Extrusion molding, kev siv dav dav ntawm cov ntsia hlau L / D piv ntawm 17 ~ 24, cua txias, extrusion kub ntawm 150 ~ 200 degree.
Tshuab molding
Tshuab moulding, txhaj tshuaj molding thiab extrusion tuaj yeem siv los tshuab pwm cov khoom xav tau. Tshuab moulding siab feem ntau yog 0.1 ~ 0.3MPa.
Cov xwm txheej ntawm PS txhaj tshuaj molding yog dab tsi?
1. Kev kho kom qhuav: Feem ntau yuav tsum tsis muaj kev kho kom qhuav. Yog tias yuav tsum tau ziab, qhov kev pom zoo kom qhuav yog 80C, 2 ~ 3 teev.
2. Melting kub: 180 ~ 280C. Rau cov khoom siv hluav taws xob hluav taws xob, qhov txwv siab tshaj yog 250C.
3. Yas Txhaj Mould kub: 40 ~ 50C. Txhaj siab: 200 ~ 600bar.
4. Kev txhaj tshuaj ceev: kev txhaj tshuaj ceev yog pom zoo.
5. Khiav thiab rooj vag: txhua hom rooj vag tuaj yeem siv tau.
6. Cov khoom siv tshuaj lom neeg thiab lub cev: Polystyrene muaj cov tshuaj tsis zoo, tuaj yeem yaj los ntawm ntau yam organic solvents, yuav muaj zog acid thiab alkali corrosion, tsis tiv taus roj, yooj yim hloov xim tom qab raug ultraviolet lub teeb.
7. Polystyrene yog ib qho nyuaj thiab nkig, tsis muaj xim thiab pob tshab, thiab tuaj yeem sib xyaw nrog ntau yam dyes los tsim cov xim sib txawv.
8.Nws yog resistant rau dej, thiab dilutes inorganic acids, tab sis yuav corroded los ntawm muaj zog oxidizing acids xws li concentrated sulfuric acid, thiab yuav o thiab deform nyob rau hauv ib co organic solvents.
Lub Hom Phiaj ntawm PS Txhaj Moulding
Hauv kev tsim cov khoom yas, PS txhaj tshuaj molding yog ib txoj hauv kev nrov tshaj plaws thiab muaj txiaj ntsig zoo. Qhov tseem ceeb ntawm cov txheej txheem no yog tias nws tuaj yeem tsim cov khoom nrog ntau hom duab, qhov ntev, thiab ruaj khov zoo.
Ib lub hom phiaj tseem ceeb ntawm PS txhaj tshuaj molding yog kom muaj peev xwm tsim cov khoom lossis cov khoom lag luam ntau. Polystyrene yog tshwj xeeb tshaj yog haum rau lub hom phiaj no vim nws yog pheej yig thiab yooj yim rau pwm.
Vim yog kev tswj hwm ntawm PS kev txhaj tshuaj molding txheej txheem, nws tuaj yeem tsim cov khoom zoo sib xws. Qhov no yog qhov tseem ceeb hauv ntau qhov kev lag luam nrog cov kev cai nruj rau kev ua tau zoo thiab qhov tseeb.
Nyob rau tib lub sijhawm, PS txhaj tshuaj molding tuaj yeem rov ua cov duab geometric nyuaj, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev tsim cov khoom siv polystyrene. Qhov no yog tshwj xeeb tshaj yog muaj feem xyuam rau kev lag luam xws li hluav taws xob, tsheb, thiab cov khoom siv uas xav tau cov khoom sib txawv thiab siab -cov khoom muaj tseeb.
Kev siv ntawm PS txhaj tshuaj molding
Cov khoom siv hluav taws xob
Connector, hloov qhov chaw, cov khoom siv hauv tsev, cov khoom siv, cov khoom siv hluav taws xob me me los yog (kub tsis kam, nplaim hluav taws xob, hluav taws xob rwb thaiv tsev, molding processability);
Tsheb
Sab nraud qhov chaw: feem ntau yog kaum Gusan, lub cav cua sov tso lub qhov npog, thiab lwm yam .;
Sab hauv qhov chaw: feem ntau yog sab hauv daim iav brace, wiper bracket thiab tswj qhov system valve;
Automotive hluav taws xob qhov chaw: automotive ignition coil stranded raj thiab ntau yam hluav taws xob connectors, thiab lwm yam.
Machinery thiab khoom siv
Videotape recorder belt driveshaft, electronic computer cover, mercury light cover, iron cover, ci machine parts, and a lot of gears, cams, buttons, electronic watch home, camera parts (heat-resistant, nplaim retardant requirements).
Cim npe nrov: Tuam Tshoj ps txhaj tshuaj molding manufacturers, lwm tus neeg, Hoobkas
