Tsiaj yog crystalline, hygroscopic thiab kub nkag siab. Txij li tus tsiaj yog hygroscopic, cov ntaub ntawv raw yuav tsum tau nruj me ntsis qhuav ua ntej molding kom tsis txhob muaj cov tshuaj kho hniav thiab kev poob qis. Nyob rau tib lub sijhawm, cov txwv tsis pub sov thiab puab thiab kub yuav tsum tau tswj kom raug yog. Kev ntsuas kub kub tuaj yeem txhawb kev txhim kho ntawm crystallinity, tab sis overheating yuav tsum zam kom ua molecular chart breakage. Nws cov yam ntxwv sai sai ua tau yooj yim tsim cov qauv amorphous. Nws yog ib qho tsim nyog kom sib npaug pob tw thiab cov khoom siv tshuab los ntawm kev tswj qhov kub thiab kev txhaj tshuaj kom txo qis kev ntxhov siab thiab shrinkage deformation.
Lub sij hawm ua: <15 hnub
Kev Ua Phem: ± {0. 01 hli
Max feem loj: 1500 * 1500 * 1000mm
Lub sijhawm coj mus kuaj: <3 hnub
Deg tas: Thov hu rau peb
Nais phoo
Xuas
Cov tsiaj dav dav (polyethylene terephthalate) txhaj tshuaj molding yuav tsum tau tshem tawm cov kev ziab uas yuav tsum tau ua ntej hygroscopicity, thiab kev ua ntej kom zam dhau hydrolysis thiab kev txwv. Nws cov melt viscosity yog qhov siab, thiab kev txhaj tshuaj kub siab dua thiab lub siab yuav tsum ua kom muaj pwm tiav. Nyob rau tib lub sijhawm, cov pwm kub yuav tsum tau tswj hwm kom sib npaug ntawm cov crystallinity thiab cov khoom lag luam pob tshab thiab cov khoom siv hlwb. Qhov kev ua kom txaus siab tom qab molding yog tsawg, tab sis nws yog rhiab rau tus nqi txias, thiab cov cua txias yuav tsum tau ua kom tsis txhob muaj kev ntxhov siab sab hauv lossis warping deformation.
Cov Khoom Tsiaj Dav
|
Lub zog tensile, tawm los (mpa) |
Elongation thaum so (%) |
Hardness (Rockwell R) |
Thaum tshav kub kub deflection kub (kev kawm tiav) |
Melting taw tes (kev kawm tiav) |
|
50-80 |
50-300 |
100-110 |
70-240 |
250-260 |
