9. Kev tswj hwm ntawm kev txhaj tshuaj ceev (Kev Txhaj Tshuaj Molding Technical Information

Qhov kev tswj hwm ntawm kev txhaj tshuaj nrawm yog faib cov kev txhaj tshuaj ntawm cov ntsia hlau rau hauv 3 mus rau 4 theem, thiab siv cov kev txhaj tshuaj kom haum rau txhua theem. Piv txwv li, maj mam txo qhov kev txhaj tshuaj sai thaum cov yas molten thawj zaug dhau los ntawm lub rooj vag, siv kev txhaj tshuaj ceev ceev thaum lub sij hawm pwm filling, thiab qeeb ntawm qhov kawg ntawm pwm filling. Siv txoj kev no tuaj yeem tiv thaiv kev nchuav, tshem tawm cov cim ntws, thiab txo cov kev ntxhov siab nyob hauv cov khoom.
Thaum lub sij hawm tsawg ceev pwm filling, tus nqi ntws yog ruaj khov, cov khoom loj yog qhov ruaj khov, thiab qhov hloov pauv me me. Cov kev ntxhov siab sab hauv ntawm cov khoom yog tsawg, thiab sab hauv thiab sab nraud anisotropic kev nyuaj siab ntawm cov khoom yuav zoo ib yam (piv txwv li, thaum ib tug polycarbonate khoom yog immersed nyob rau hauv carbon tetrachloride, cov khoom molded los ntawm kev kub ceev txhaj molding muaj ib tug nyiam tawg. , thiab cov khoom tsis tawg ntawm tsawg ceev).
Nyob rau hauv cov pwm qeeb qeeb, qhov kub sib txawv ntawm cov khoom ntws, tshwj xeeb tshaj yog nruab nrab ntawm cov khoom ua ntej thiab tom qab lub qhov rooj, yog qhov loj, pab kom tsis txhob shrinkage thiab pitting. Txawm li cas los xij, vim lub sijhawm ua haujlwm ntev dua, nws yooj yim ua rau delamination thiab kev sib txuas tsis zoo ntawm cov khoom ua haujlwm, uas tsis tsuas yog cuam tshuam rau cov tsos, tab sis kuj txo cov neeg kho tshuab lub zog.
Thaum lub sij hawm high-speed txhaj, cov khoom ntws ceev ceev. Thaum lub siab ceev pwm filling yog du, cov khoom molten sai sai ua rau pwm kab noj hniav, ua rau cov khoom kub thiab viscosity tsawg. Kev txhaj tshuaj qis dua tuaj yeem siv tau, uas yog cov khoom siv kub pwm filling qhov xwm txheej. Kev kub ceev pwm filling tuaj yeem txhim kho qhov glossiness thiab smoothness ntawm lub workpiece, tshem tawm qhov tshwm sim ntawm seam koom thiab delamination, txo shrinkage indentation, thiab xyuas kom meej xim xim, kom ntseeg tau tias plumpness rau feem ntau ntawm cov workpiece.
Txawm li cas los xij, nws yog ib qho yooj yim ua rau cov khoom ua rog thiab blistered, los yog qhov chaw ua daj, los yog hlawv thiab ua focal, los yog ua rau nyuaj rau demoulding, los yog tsis sib xws pwm filling. Rau siab viscosity plastics, nws muaj peev xwm ua rau yaj tawg, ua rau huab thiab huab cua ntawm qhov chaw ntawm lub workpiece.