Taw qhia rau Kev Tsim
Cov khoom siv tshuab tshuab yog dav siv nyob rau hauv ntau yam lag luam, tshwj xeeb tshaj yog nyob rau hauv cov dej haus thiab tshuaj ntim kev lag luam, thiab kuj nyob rau hauv cov khoom ua si kev lag luam.
Ua R hloov ntawm cov npoo thiab cov ces kaum
Feem ntau, cov ces kaum thiab cov ces kaum ntawm tshuab moulded cov khoom yuav tsum tau ua rau R kev hloov pauv, vim hais tias qhov loj dua tshuab nthuav dav ntawm cov ces kaum yog ib qho yooj yim ua rau cov phab ntsa tsis sib xws, thiab cov ces kaum ntse kuj yooj yim los tsim kev tawg, thiab R hloov. ntawm cov khoom tuaj yeem ua rau phab ntsa thickness ntawm cov khoom sib xws.
Txhim kho cov qauv tsim hauv compression, nro thiab torsion
Nrog rau cov khoom siv sib txawv, qee qhov qauv tsim hauv compression, nro thiab torsion kuj tuaj yeem ntxiv:
1. Yog tias koj xav ua kom qhov ntev ntawm cov khoom lag luam, koj tuaj yeem tsim qee cov stiffeners raws li kev ntxhov siab.
2. Txhawm rau txhim kho qhov kev ua tau zoo los tiv thaiv kev sib tsoo ntawm cov khoom, qhov saum npoo kuj tuaj yeem tsim los rau hauv cov qauv arc uas ua rau muaj kev ntxhov siab thiab ntxiv nrog kev txhawb nqa tav.Lub xub pwg ntawm lub raj mis cov khoom yuav tsum yog inclined, tsis tiaj thiab ncaj.
Feem ntau, lub raj mis hauv qab yog ua rau hauv cov duab concave kom muaj zog thiab kev tso kawm ruaj khov.Piv txwv li, peb feem ntau pom cov fwj uas muaj cov roj uas siv tau nrog qee cov duab concave-convex nyob rau saum npoo, uas tuaj yeem tsis tsuas yog ua kom lub zog ntawm lub raj mis lub cev, tab sis kuj pab txhawb kev sau npe ntawm cov cim lag luam.
Kev xav tau thiab kev qhia txog cov khoom siv tshuab moulding
Kev txhim kho thiab kev siv tshuab tshuab moulding yog qhov dav heev, uas yog ntxiv rau kev tsim cov khoom siv tshuab moulding.Tshuab moulding cov ntaub ntawv tau maj mam tsim los ntawm thawj LDPE, PET, PP thiab PVC cov khoom los tshuab moulding engineering yas, roj hmab thiab qee cov ntaub ntawv sib xyaw.
Cov kev cai tshwj xeeb rau cov khoom siv roj hmab hauv ntau yam ntawm cov tshuab yas
1. Extrusion tshuab molding
Extrusion tshuab moulding yog nqa tawm nyob rau hauv lub viscous flow xeev, yog li thiaj li yuav txo tau parison sag thiab optimize phab ntsa thickness tis, yas nrog loj molecular hnyav feem ntau yog siv.
2. Txhaj tshuaj molding
Txhaj tshuab moulding yog nqa tawm nyob rau hauv lub siab elastic xeev.Yuav kom txo tau lub zog ntawm kev txhaj tshuaj molding parison, qee cov yas uas yooj yim ntws (yas nrog me me molecular hnyav) yog siv.
3. Txhaj stretch tshuab molding
Amorphous yas feem ntau yog siv.Vim yog qhov me me intermolecular entanglement quab yuam ntawm amorphous yas, nws yooj yim dua rau ncab.Txawm hais tias PET tseem yog crystalline, nws tseem yog qhov tseem ceeb tshaj plaws stretch tshuab molding khoom, thiab crystallization tus nqi qeeb heev.Nyob rau hauv luv luv, feem ntau tshuab molding qib plastics muaj nruab nrab mus rau siab molecular hnyav tis.
Hom tshuab moulding khoom
1. Polyolefins
HDPE, LLDPE, LDPE, PP, EVA feem ntau yog siv rau tshuab moulding cov khoom lag luam, ntim khoom thiab cov khoom ua si, cov thawv ntim tshuaj, thiab lwm yam.
2. Thermoplastic polyester
PETG thiab PETP feem ntau yog siv los tshuab lub raj mis carbonated haus thiab lub raj mis cawv, uas tau maj mam hloov PVC thiab tau siv dav.Qhov tsis zoo yog tias lawv cov nqi siab, thiab lawv feem ntau yog siv rau kev txhaj tshuaj-daws tshuab moulding.
3. Engineering plastics (alloy)
ABS, SAN, PS, PA, POM, PMMA, PPO, thiab lwm yam tau maj mam siv rau hauv tsheb, tshuaj, khoom siv hauv tsev, tshuaj lom neeg kev lag luam thiab lwm yam lag luam, tshwj xeeb tshaj yog PC thiab nws cov khoom sib xyaw yas, uas tuaj yeem siv los tshuab qib siab. ntim thiab cov khoom siv tsheb (PC / ABS, thiab lwm yam).
4. Thermoplastic elastomr
Feem ntau, SBS, SEBS, TPU, TPE thiab lwm yam tshuab molding tebchaw yog siv, thaum thermosetting plastics, vulcanized roj hmab thiab crosslinked PE tsis tuaj yeem tshuab molded.
Cov ntsiab lus:
Cov khoom siv dav siv rau kev txhaj tshuaj molding
PE, PET, PVC, PP, PC thiab POM feem ntau yog siv rau cov thawv thiab cov khoom siv nrog cov molding siab raug thiab ntim me me.
Post lub sij hawm: Mar-22-2023