Xav txog cov yas shrinkage hauv kev txhaj tshuaj pwm yog qhov yuav tsum tau ua kom ntseeg tau qhov tseeb, kev ua haujlwm thiab cov tsos zoo ntawm cov khoom kawg. Nov yog cov laj thawj tseem ceeb vim li cas nws tseem ceeb kom tsom rau shrinkage:
1. Qhov xam cov yam ntxwv ntawm cov ntaub ntawv yas
Cua txias theem hloov chaw: Thaum lub molten yas txias yog txias thiab kho cov molecular hloov pauv los ntawm cov kev hloov pauv ntawm lub xeev (tshwj xeeb yog rau kev txo qis hauv ntim. Cov cuab yeej lub cev no yog lub hauv paus ua rau cov yas tawg.
Cov ntaub ntawv sib txawv: tus nqi shrinkage ntawm txawv plastics yog txawv heev (xws li pa66 shrinkage tus nqi yuav tsum tau them nyiaj raws li cov yam ntxwv.
2. Zam cov khoom lag luam sib txawv
Kev ua tsis tiav: Yog tias cov pwm kab noj hniav tsis nthuav dav raws li qhov qis dua, qhov tseeb ntawm cov khoom yuav tsawg dua li cov qauv tsim. Piv txwv li, tus qauv tsim ntawm 100 hli ntu, yog tias cov khoom shrinkage tus nqi yog 1%, qhov loj me tsuas yog 99mm, ua rau kev ua tsis tiav lossis tsis muaj kev cuam tshuam.
Yuav tsum muaj nqis: precision seem (xws li lub zog, txuas) tau raug mob nruj me me (tsis pub dhau.
3. Tiv thaiv cov tsos mob tsis xws luag thiab cov teeb meem kev teeb tsa
Lub Cim Cov Cim: Thaj av tuab-walled kom txias maj mam, thiab tsis sib xws yuav tsim kev cuam tshuam rau saum npoo av, uas yuav tsum tau muaj kev tiv thaiv kom zoo thiab tsim kev txhim kho pwm tsim.
Warping deformation: anisotropic shrinkage (xws li fiber ntau cov ntaub ntawv cog lus tsawg hauv cov khoom lag luam kom khoov thiab ntswj, cuam tshuam nrog cov tiaj tus neeg ncaj ncees.
Kev ntxhov siab tawg: Kev ntxhov siab sab hauv los ntawm qhov tsis sib xws shrinkage tej zaum yuav ua rau cov micro-nrum thiab txo cov tshuab ua kom muaj zog ntawm cov khoom.
4. Synergy ntawm cov txheej txheem thiab pwm tsim
Kev Hloov Hloov Hloov: Pwm Rooj Vag thiab Tus Ntaus Ntaus Cov Qauv Tsim Tshuaj yuav tsum ua kom cov siab tuav theem siab tuaj yeem muab cov kab ke shrinkage thiab tsis txhob muaj kab noj hniav sab hauv (shrinkage qhov).
Cua txias system: sib txawv rau cov nqi txias tuaj yeem ua rau hauv zos shrinkage hloov. Piv txwv li, cov chaw tuab tuab-walled kom txias dua, ntsws ntau dua, thiab yuav tsum tau sib npaug ntsuas kub los ntawm cov pwm channel los ntawm cov pwm channel.
5. Kev lag luam thiab ntau lawm ua tau zoo
Txo cov nqi kev sib tw pwm: tsis quav ntsej shrinkage tuaj yeem ua rau ntau yam kev kho pwm (xws li vuam, polishing), nce sijhawm thiab siv nyiaj.
Zam kev ntsuas pob: Yog tias qhov loj me yog qhov txawv txav vim muaj kev sib txawv thaum ntau cov khoom lag luam ntau lawm, cov khoom lag luam tag nrho tej zaum yuav tsis muaj peev xwm tsis tsim nyog, ua rau muaj cov khoom pov tseg.
6. Cov ntaub ntawv tshwj xeeb thiab cov teeb meem nyuaj
Cov Khoom Siv Fiber Fiber: Cov Fiber Ntau Siv Fiber Reastcred Dastics (xws li GF-PA) muaj qis shrinkage, tab sis qhov tseem ceeb anisrotropy thiab yuav tsum tau them nyiaj cais.
Txoj kev nyuaj geometric nta: lub shrinkage tus nqi ntawm cov qauv hauv zej zog xws li lub zog ntawm lub cev, thiab cov pwm loj yuav tsum tau muab kho kom sib cais.