Cov Kev Ntsuas Ua Tau Txhaj Tshuaj Tiv Thaiv Uas Yuav Tsum Tau

Txhaj tshuaj molds yog ntau txheej tshaj hlau ua pwm. Qee qhov tshwj xeeb ntawm kev txhaj tshuaj pwm yuav tsum tau kho kom zoo dua raws li kev khiav hauj lwm.

1. Yooj yim rau demould

Qhov cuam tshuam ntawm qhov pwm thiab nws cov khoom yog qhov tseem ceeb tshaj plaws uas ua rau pwm tso tawm, uas yog qhov tshwj xeeb tshaj tawm rau cov phom moulds uas tsis tshua muaj teeb meem tawv. Cov teeb meem deg yog tshwm sim los ntawm cov khoom pwm ntawm nws tus kheej (xws li porosity), los yog qhov ua tsis zoo ntawm cov pwm tom qab siv ntev (qhov teeb meem ntawm lub tshuaj).

2. Cov khoom siv kuj zoo kawg nkaus, qhov kev xeb thiab corridors oxidation

Rau cov pwm yas, vim kev moulding txheej txheem yog ua tiav ntawm qhov kub, cov pwm ua hauj lwm feem ntau yog qis dua 250 ° C, thiab qee yam tshuaj (xws li polyolefins PE, PP thiab PB, acetal resin POM, polyamide PA, linear polyester PC, PBT, thiab PET, polarylsulone / polysulfone PPE, PEEK, PAEK / PPS, PSU, thiab PES) decomposes hydrogen chloride los yog hydrogen fluoride roj thaum lub sij hawm muaj cua sov. Cov khoom siv ua rau corrosive ua rau corrosion rau ntawm cov hniav pwm. Tsis tas li ntawd, feem ntau cov khoom uas muaj feem xyuam nrog cov khoom fillers, xws li iav fibers thiab hmoov fillers, uas yuav ua rau hnav ntawm cov pwm yas. Tom qab qhov txhuam, qhov pwm ntawm qhov tuaj pwm yuav nce thiab hnav cov pwm yuav nce mus rau qhov tsis ua haujlwm. Yog li ntawd, yuav ua rau lub neej pwm plastics ntau dua, qee txoj kev tsim nyog los txhim kho nws txoj kev ua haujlwm tsis zoo, kev xoos ntawm qhov ua kom tsis muaj zog, thiab thermal adhesion ua haujlwm yuav tsum tau saws.

3. Ua siab tawv thiab ruaj khov

Cov khoom no zoo tagnrho rau kev txhaj tshuaj yas pwm nrog textured cov hniav thiab kev ua haujlwm ntawm cov tshuab ua haujlwm (xws li polyamides thiab polyarylsulfone / polysulfone).

Cov teeb meem no tau ntsib nyob rau hauv kev txhaj tshuaj tuaj pwm yuav daws tau nrog PVD coatings. Tom qab txheej, cov tshuaj moulds muaj cov nram qab no cov khoom:

◆ Cov khoom hnyav dua, pwm lub neej zoo heev.

◆ Cov khoom siv roj hmab muaj lub sij hawm ntev thiab muaj kev ntxim ntxim zoo dua.

◆ Cov khoom zoo ntawm cov khoom zoo nkauj tuaj lawm thiab tus nqi tsawg dua.

◆ Tshuaj tso tawm yooj yim dua, thiab tso tawm tus neeg muag khoom tawm.

◆ Tiv thaiv kom tsis txhob muaj cov ntaub ntawv txhuam tawm los ntawm kev tawm tsam txheej pwm.

◆ Lub pwm yooj yim los ntxuav thiab lub voj voog tu ntev dua.

Tsis tas li ntawd, cov pwm yas plawg feem ntau yog kub hnyiab tau qis dua. Yog li, feem ntau high-kub PVD coatings tsis haum rau nws. Qhov no, cov txheej txheem PVD txheej txheem uas tsis tshua muaj siab yuav tsum tau siv los xyuas kom meej tias cov pwm ntawm lub puab tsuas tsis yog khuam rau thaum nws muaj coated.

Raws li qhov pom zoo ntawm PVD coatings, ntau zaum thiab cov kws kho mob tau txais qhov kev siv tshuab no hauv kev tuaj pwm. Qee cov neeg tshawb nrhiav tau siv PVD los kho cov pwm yas nrog TIN los txhim kho pwm lub neej. Rau cov hlua khau hauv cov khoom ntawm kev txhaj tshuaj molding, kev siv ntau hom kev arc thiab ntau hom Arc HCDs hauv txoj hauv PVD tau ua rau txo tus nqi seem rau qhov yuav luag xoom. Tom qab kho PVD, lub hau ntswj muaj qhov zoo tshaj plaws, thiab nws kuj txo cov hlawv roj hmab. Tsis tas li ntawd, PVD-coated TIN tau siv rau lub hauv paus tseem ceeb, thiab cov xov xwm txhaj tshuaj yog peb zaug uas tsis kho.