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  • Garage Kit, anime, daim duab, 3D Printed Figure

Garage Kit, anime, daim duab, 3D Printed Figure

Kev piav qhia yooj yim:

Txhaj tshuaj molding txheej txheem yog txheej txheem txheej txheem uas muaj ntau yam, xws li pwm tsim, pwm tsim, raw khoom yam ntxwv thiab raw khoom pretreatment txoj kev, molding txheej txheem, txhaj molding tshuab ua hauj lwm, thiab yog ze ze rau kev ua ib puag ncig tej yam kev mob, khoom txias lub sij hawm thiab txheej txheem tom qab kho.


Yam khoom xav tau

Khoom nplooj

Kev ua haujlwm

Siv tus nqi 0.5-5USD
Ua kom tsawg dua 500 pcs
Hnub xa khoom 5 hnub xa khoom
OEM OK
Qhov chaw tsim khoom ua nyob rau hauv Suav teb
lwm yam Nrog rau kev ntim khoom

Txhaj tshuaj molding txheej txheem yog txheej txheem txheej txheem uas muaj ntau yam, xws li pwm tsim, pwm tsim, raw khoom yam ntxwv thiab raw khoom pretreatment txoj kev, molding txheej txheem, txhaj molding tshuab ua hauj lwm, thiab yog ze ze rau kev ua ib puag ncig tej yam kev mob, khoom txias lub sij hawm thiab txheej txheem tom qab kho.

Niaj hnub no, cia peb tham txog cov khoom thiab cov txheej txheem ntawm cov khoom siv raw rau kev txhaj tshuaj molding:

ABS (super tsis tawg kua nplaum)

ABS kev ua haujlwm:

ABS yog tsim los ntawm butadiene, acrylonitrile thiab styrene.Txhua monomer muaj cov yam ntxwv sib txawv: butadiene muaj toughness thiab cuam tshuam tsis kam;High thermal thiab tshuaj stability ntawm acrylonitrile;Styrene muaj kev ua haujlwm yooj yim, ua tiav thiab siab zog.Nyob rau hauv cov nqe lus ntawm morphology, ABS yog cov khoom siv amorphous nrog cov neeg kho tshuab siab thiab cov khoom zoo ntawm "hardness, toughness thiab steel".Nws yog amorphous polymer.ABS yog lub hom phiaj dav dav engineering yas nrog ntau yam thiab siv dav.Nws tseem yog hu ua "general-purpose plastic" (MBS hu ua pob tshab ABS).ABS yog ib qho yooj yim los nqus dej noo, nrog lub ntiajteb txawj nqus ntawm 1.05g / cm3 (me ntsis hnyav dua li dej), qis shrinkage (0.60%), ruaj khov loj thiab yooj yim rau kev tsim thiab txheej txheem.Cov yam ntxwv ntawm ABS feem ntau yog nyob ntawm qhov piv ntawm peb lub monomers thiab cov qauv molecular hauv ob theem.Qhov no tuaj yeem muaj kev hloov pauv zoo hauv cov khoom tsim, thiab yog li tsim ntau pua ntawm ABS cov ntaub ntawv sib txawv hauv kev ua lag luam.Cov ntaub ntawv zoo sib txawv no muab cov yam ntxwv sib txawv, xws li nruab nrab mus rau qhov cuam tshuam siab, qis rau siab tiav thiab kub distortion.ABS cov khoom muaj super ua haujlwm, zoo li tus yam ntxwv, tsis tshua muaj creep, zoo heev dimension stability thiab siab muaj zog.ABS yog lub teeb daj daj lossis cov hlaws opaque resin, tsis muaj tshuaj lom, tsis qab thiab nqus dej tsawg.Nws muaj cov khoom zoo ntawm lub cev thiab cov khoom siv kho tshuab, xws li cov khoom siv hluav taws xob zoo, hnav tsis kam, qhov ruaj khov, tshuaj lom neeg tsis kam thiab nto gloss, thiab yooj yim rau kev ua thiab cov duab.Qhov tsis zoo yog huab cua tsis kam, tsis zoo cua sov ua haujlwm thiab flammability.

Cov yam ntxwv ntawm ABS txheej txheem:

a: ABS muaj qhov nqus dej siab thiab cov av noo rhiab heev.Ua ntej molding, nws yuav tsum tau qhuav tag thiab preheated (tsawg kawg 2 teev ntawm 80 ~ 90C) kom tswj cov dej noo hauv qab 0.03%.

b: Lub melting viscosity ntawm ABS resin yog tsawg rhiab rau qhov kub thiab txias (sib txawv los ntawm lwm yam amorphous resins).Txawm hais tias qhov kev txhaj tshuaj kub ntawm ABS yog me ntsis siab dua li ntawm PS, nws tsis tuaj yeem muaj cua sov xoob xws li PS.txoj kev ntawm qhov muag tsis pom cua sov tsis tuaj yeem siv los txo nws cov viscosity.Lub fluidity tuaj yeem txhim kho los ntawm kev ua kom cov ntsia hlau nrawm lossis txhaj tshuaj.Feem ntau, kev ua haujlwm kub yuav tsum yog 190-235 ℃

c: Lub melting viscosity ntawm ABS yog nruab nrab, siab dua li ntawm PS, lub duav thiab raws li, yog li nws yuav tsum tau siv npias nrog kev txhaj tshuaj siab dua (500 ~ 1000bar)

d: ABS cov khoom siv nruab nrab thiab siab txhaj tshuaj ceev, thiab cov nyhuv ntawm npias yog zoo dua.(tshwj tsis yog tias cov duab yog qhov nyuaj thiab nyias-walled qhov xav tau kev txhaj tshuaj nrawm), cov roj kab yooj yim tshwm sim ntawm lub nozzle ntawm cov khoom.

e: ABS molding kub yog qhov siab, thiab nws cov pwm kub feem ntau yog hloov kho ntawm 25-70 ℃.Thaum tsim cov khoom loj, qhov kub ntawm cov pwm ruaj khov (pem hauv ntej pwm) feem ntau yog li 5 ℃ siab tshaj qhov txav pwm (rov qab pwm).(pwm kub yuav cuam tshuam rau qhov kawg ntawm cov khoom yas, thiab qhov kub qis dua yuav ua rau qis dua)

f: ABS yuav tsum tsis txhob nyob twj ywm hauv qhov kub kub ntev dhau (tsawg dua 30 feeb), txwv tsis pub nws yooj yim rau decompose thiab tig daj.

PS (polystyrene)

1. PS kev ua haujlwm:

PS yog amorphous polymer nrog fluidity zoo thiab tsis tshua muaj dej nqus (tsawg dua 00.2%), uas yog cov yas pob tshab yooj yim rau kev tsim thiab txheej txheem.Nws cov khoom muaj lub teeb transmittance ntawm 88-92%, muaj zog xim muaj zog thiab siab hardness.Txawm li cas los xij, PS cov khoom yog nkig, ua rau muaj kev ntxhov siab sab hauv, tsis zoo thaum tshav kub kub tsis kam (60-80 ℃), tsis muaj tshuaj lom, thiab qhov tshwj xeeb lub ntiajteb txawj nqus yog li 1.04g \ cm3 (me ntsis loj dua dej).Moulding shrinkage (nws tus nqi feem ntau yog 0.004-0.007in / hauv), pob tshab PS - lub npe tsuas yog qhia qhov pob tshab ntawm cov resin, tsis yog crystallinity.(cov khoom siv tshuaj lom neeg thiab lub cev: PS feem ntau cov khoom lag luam yog pob tshab thiab cov khoom siv amorphous. PS muaj cov khoom zoo geometric stability, thermal stability, optical kis tau tus yam ntxwv, hluav taws xob rwb thaiv tsev yam ntxwv thiab me ntsis nyiam nqus noo noo. yuav corroded los ntawm muaj zog oxidizing acids xws li concentrated sulfuric acid, thiab tuaj yeem nthuav thiab deform hauv qee cov kuab tshuaj organic.)

2. Txheej txheem yam ntxwv ntawm PS:

Lub melting point ntawm PS yog 166 ℃, qhov kub ua haujlwm feem ntau yog 185-215 ℃, thiab melting kub yog 180 ~ 280 ℃.Rau cov khoom siv hluav taws xob hluav taws xob, qhov txwv sab saud yog 250 ℃, thiab qhov kub ntawm qhov decomposition yog li 290 ℃, yog li nws qhov kev ua haujlwm kub ntau yog dav.Cov pwm kub yog 40 ~ 50 ℃, thiab kev txhaj tshuaj siab yog 200 ~ 600bar.Nws raug nquahu kom siv kev txhaj tshuaj nrawm rau kev txhaj tshuaj nrawm.Txhua hom rooj vag tuaj yeem siv rau kev khiav thiab rooj vag.PS cov ntaub ntawv feem ntau tsis xav tau kev kho kom qhuav ua ntej ua haujlwm tshwj tsis yog nws 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, nws tuaj yeem ua kom khov thiab khov sai thaum ua qee cov pwm.Nws cov cua txias nrawm 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 zoo dua nrog qhov nce ntawm pwm kub.

PE (polyethylene)

1. PE kev ua haujlwm:

PE yog ib hom yas uas muaj ntau tshaj plaws ntawm cov yas.Nws yog tus cwj pwm los ntawm cov mos mos, tsis muaj tshuaj lom, tus nqi qis, kev ua haujlwm yooj yim, tshuaj lom neeg zoo, tsis yooj yim rau corrosion thiab nyuaj luam ntawv.PE yog ib yam crystalline polymer.Nws muaj ntau yam.LDPE (tsawg ntom polyethylene) thiab HDPE (siab ntom polyethylene) feem ntau yog siv.Lawv yog cov yas translucent uas tsis muaj zog thiab lub ntiajteb txawj nqus ntawm 0.94g / cm3 (me dua dej);LLDPE resin tsawg heev (qhov ceev yog qis dua 0.910g / cc, thiab qhov ceev ntawm LLDPE thiab LDPE yog nyob nruab nrab ntawm 0.91-0.925).LDPE yog mos, (feem ntau hu ua mos kua nplaum) HDPE feem ntau hu ua tawv mos kua nplaum.Nws nyuaj dua li LDPE.Nws yog cov khoom siv semi crystalline nrog siab shrinkage tus nqi tom qab molding.Nws muaj qhov tsis zoo ntawm lub teeb xa hluav taws xob ntawm 1.5% thiab 4%, crystallinity loj, thiab nws yooj yim rau kev ntxhov siab ib puag ncig.Cov ntaub ntawv uas muaj cov yam ntxwv ntws qis tuaj yeem siv los txo cov kev ntxhov siab sab hauv thiab txo qhov tawg.Thaum qhov kub siab tshaj 60 ℃, nws yooj yim rau yaj hauv cov kuab tshuaj hydrocarbon, tab sis nws cov solubility kuj zoo dua li LDPE.

Lub siab crystallinity ntawm HDPE ua rau nws qhov siab ceev, tensile lub zog, siab kub distortion kub, viscosity thiab tshuaj stability.Nws muaj zog impermeability dua li LDPE.PE-HD muaj qhov cuam tshuam tsis zoo.Cov khoom yog tsuas yog tswj los ntawm qhov ceev thiab molecular phaus faib.Qhov hnyav molecular faib ntawm HDPE yog nqaim heev.Rau qhov ceev ntawm 0.91 ~ 0.925g / cm3, peb hu nws thawj hom PE-HD;Rau qhov ceev ntawm 0.926 ~ 0.94g / cm3, nws yog hu ua ob hom HDPE;Rau qhov ceev ntawm 0.94 ~ 0.965g / cm3, nws yog hu ua peb hom HDPE.Cov khoom muaj cov yam ntxwv zoo ntws nrog MFR ntawm 0.1 thiab 28. Qhov siab dua qhov hnyav molecular, cov yam ntxwv ntws ntawm LDPE yog qhov tsis zoo, tab sis nws muaj kev cuam tshuam zoo zog.HDPE yog qhov yooj yim rau kev ntxhov siab ib puag ncig.

Kev tawg tuaj yeem txo tau los ntawm kev siv cov khoom siv nrog cov yam ntxwv ntws qis heev kom txo qis kev ntxhov siab sab hauv.HDPE yog ib qho yooj yim rau yaj hauv cov kuab tshuaj hydrocarbon thaum qhov kub siab tshaj 60C, tab sis nws cov solubility tsis kam yog zoo dua li LDPE LDPE yog ib qho khoom siv crystalline uas muaj shrinkage siab tom qab molding, xws li 1.5% mus rau 4%.LLDPE (linear low density polyethylene) muaj zog tensile, nkag mus, cuam tshuam thiab tsim kua muag, uas ua rau LLDPE haum rau zaj duab xis.Nws zoo heev ib puag ncig kev ntxhov siab tawg ua haujlwm, tsis tshua muaj kev kub ntxhov thiab kev ua tsov rog ua rau LLDPE txaus nyiam rau cov yeeb nkab, phaj extrusion thiab txhua daim ntawv thov molding.Daim ntawv thov tshiab kawg ntawm LLDPE yog ua ib zaj duab xis yas rau hauv ob sab phlu ntawm cov khib nyiab pov tseg thiab khib nyiab kua tank.

2. Txheej txheem yam ntxwv ntawm PE:

Qhov zoo tshaj plaws ntawm PE qhov chaw yog qhov loj molding shrinkage, uas yog yooj yim rau shrink thiab deform.PE cov khoom muaj me me nqus dej thiab tsis tuaj yeem qhuav.Kev ua haujlwm kub ntawm PE yog qhov dav heev thiab nws tsis yooj yim rau decompose (qhov decomposition kub yog 320 ℃).Yog hais tias lub siab yog siab, cov khoom ceev yog siab thiab lub shrinkage yog me me.PE muaj fluidity nruab nrab.Cov txheej txheem ua haujlwm yuav tsum tau tswj xyuas nruj me ntsis thiab cov pwm kub yuav tsum tau ua kom tas li (40-60 ℃).Lub crystallinity ntawm PE muaj feem xyuam rau cov txheej txheem molding.Nws muaj qhov kub thiab txias txias.Yog tias pwm kub qis, qhov crystallinity tsawg.Nyob rau hauv cov txheej txheem crystallization, vim lub anisotropy ntawm shrinkage, cov kev ntxhov siab sab hauv yog concentrated, thiab PE qhov chaw yog feem ntau deformation thiab tawg.Thaum cov khoom raug muab tso rau hauv dej kub ntawm 80 ℃, lub siab tuaj yeem so kom txaus rau qee yam.Thaum lub sij hawm molding txheej txheem, cov khoom kub thiab pwm kub yuav tsum siab dua.Kev txhaj tshuaj siab yuav tsum qis dua ntawm qhov chaw ntawm kev ua kom cov khoom zoo.Qhov txias ntawm pwm yog tshwj xeeb yog yuav tsum tau ceev ceev thiab sib xws, thiab cov khoom yog kub thaum demoulding.

PP (polypropylene)

1. PP kev ua haujlwm:

PP yog crystalline polymer.Ntawm cov khoom siv yas, PP yog lub teeb tshaj plaws, nrog qhov ceev ntawm tsuas yog 0.91g / cm3 (tsawg dua dej).Ntawm cov khoom siv dav dav, PP muaj qhov ua kom sov zoo tshaj plaws, thiab nws cov thermal deformation kub yog 80-100 ℃, uas tuaj yeem ua rau boiling dej.PP muaj qhov zoo ntawm kev ntxhov siab tawg tsis kam thiab siab khoov qaug zog lub neej, feem ntau hu ua "100% kua nplaum".Kev ua tau zoo ntawm PP yog zoo dua li ntawm PE.PP cov khoom muaj lub teeb yuag, zoo toughness thiab zoo tshuaj tiv thaiv.Qhov tsis zoo ntawm PP: tsis tshua muaj qhov tseeb, tsis txaus rigidity, huab cua tsis zoo thiab yooj yim los tsim "tooj liab puas".Nws muaj post shrinkage phenomenon.Tom qab demoulding, nws yog ib qho yooj yim rau hnub nyoog, ua brittle thiab deform.PP yeej ib txwm yog cov khoom siv tseem ceeb rau kev tsim cov fibers vim nws cov xim muaj peev xwm, hnav tsis kam, tshuaj tsis haum thiab kev lag luam zoo.PP yog cov khoom siv semi crystalline.Nws yog ib qho nyuaj tshaj li PE thiab muaj cov ntsiab lus melting ntau dua.Vim tias homopolymer PP yog nkig heev thaum qhov kub siab tshaj 0 ℃, ntau cov khoom lag luam PP yog cov khoom siv tsis tu ncua nrog 1 ~ 4% ethylene lossis clamp copolymer nrog cov ntsiab lus ethylene siab dua.Copolymer PP cov ntaub ntawv muaj qhov kub thiab txias distortion (100 ℃), tsis tshua muaj pob tshab, tsis tshua muaj gloss thiab tsis tshua muaj rigidity, tab sis muaj zog cuam tshuam lub zog.Lub zog ntawm PP nce nrog qhov nce ntawm cov ntsiab lus ethylene.

2. Txheej txheem yam ntxwv ntawm PP:

PP muaj qhov zoo fluidity thiab molding kev ua tau zoo ntawm melting kub.PP muaj ob tus yam ntxwv hauv kev ua haujlwm: ua ntej, qhov viscosity ntawm PP yaj txo qis nrog qhov nce ntawm shear ceev (tsawg cuam tshuam los ntawm kub);Thib ob: high degree ntawm molecular orientation thiab loj shrinkage.Kev ua haujlwm kub ntawm PP yog 220 ~ 275 ℃.Nws yog qhov zoo dua kom tsis pub tshaj 275 ℃.Nws muaj qhov zoo thermal stability (decomposition kub yog 310 ℃), tab sis nyob rau hauv high kub (270-300 ℃), nws yuav degrade yog hais tias nws nyob twj ywm nyob rau hauv lub chim ntev.Vim tias qhov viscosity ntawm PP txo qis pom tseeb nrog qhov nce ntawm shear ceev, nce kev txhaj tshuaj thiab kev txhaj tshuaj ceev yuav txhim kho nws cov fluidity, shrinkage deformation thiab kev nyuaj siab.Pwm kub (40 ~ 80 ℃), 50 ℃ yog pom zoo.Lub crystallization degree yog txiav txim siab los ntawm pwm kub, uas yuav tsum tau tswj nyob rau hauv qhov ntau ntawm 30-50 ℃.PP yaj tuaj yeem dhau los ntawm qhov sib txawv nqaim heev hauv qhov tuag los ua ib qho ntse.Nyob rau hauv lub melting txheej txheem ntawm PP, nws yuav tsum tau nqus ib tug loj npaum li cas ntawm melting kub (qhov loj dua qhov kub), thiab cov khoom yog kub heev tom qab molded.PP tsis tas yuav qhuav thaum ua, thiab qhov shrinkage thiab crystallinity ntawm PP yog qis dua li ntawm PE.Kev txhaj tshuaj ceev feem ntau yog siv high-speed txhaj molding los txo qhov siab sab hauv.Yog tias muaj qhov tsis xws luag ntawm qhov chaw ntawm cov khoom, kev txhaj tshuaj qis qis ntawm qhov kub siab yuav tsum tau siv.

Cov khoom sib txawv ntawm ntau yam khoom siv raw kuj txiav txim siab cov txheej txheem sib txawv, yog li qhov kev thov ntawm kev siv kuj txawv.

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