Powder packing forming yog ib kauj ruam tseem ceeb hauv kev ua hmoov, dav siv hauv cov zaub mov, tshuaj, tshuaj, thiab kev lag luam ua liaj ua teb. Lub hom phiaj tseem ceeb ntawm cov txheej txheem no yog los hloov cov hmoov txhuv nplej siab rau hauv cov khoom zoo li cov khoom siv tshwj xeeb, qhov ntom ntom, thiab ruaj khov los ntawm cov txheej txheem tshwj xeeb, thiab thaum kawg muab ntim rau hauv cov hnab ntim khoom kom tau raws li kev khaws cia, kev thauj mus los, thiab kev siv.
Cov hmoov ntim cov txheej txheem feem ntau suav nrog plaub kauj ruam tseem ceeb: raw khoom pretreatment, sib tov, sib sau, thiab ntim. Ua ntej, cov khoom siv raw yuav tsum tau ua ntej ua ntej xws li sieving thiab ziab kom ntseeg tau tias cov khoom me me thiab cov ntsiab lus noo noo raws li cov txheej txheem yuav tsum tau ua, tiv thaiv clumping lossis stratification thaum lub sij hawm tom ntej. Qhov thib ob, nyob ntawm seb cov yam ntxwv ntawm cov khoom lag luam, cov khoom siv raw yuav tsum tau sib xyaw nrog cov khoom siv ntxiv (xws li cov hlua khi thiab cov khoom siv ntws) txhawm rau txhim kho lub cev ntawm cov hmoov.
Cov txheej txheem tsim yog ib kauj ruam tseem ceeb hauv cov txheej txheem; Cov txheej txheem muaj xws li compression molding, granulation, thiab direct filling. Compression molding siv cov tshuab ua kom siab compression hmoov rau hauv flakes lossis blocks, uas yog tom qab ntawd crushed rau hauv cov lus qhia tshwj xeeb. Cov txheej txheem granulation siv cov txheej txheem ntub dej los yog qhuav kom sib sau cov hmoov rau hauv granules, txhim kho flowability thiab solubility. Rau cov hmoov uas tsis tas yuav hloov pauv ntawm daim ntawv, lawv tuaj yeem raug ntim ncaj qha rau hauv lub hnab uas siv cov khoom ntim ntau.
Cov txheej txheem ntim khoom ncaj qha cuam tshuam rau cov khoom txee lub neej thiab cov neeg siv kev paub. Cov hnab ntim khoom niaj hnub no feem ntau siv cov ntaub ntawv nrog cov dej noo- pov thawj thiab oxidation- cov ntaub ntawv pov thawj, xws li txhuas- cov hnab yas sib xyaw thiab ntau- txheej co- cov hnab ntim extruded, thiab raug kaw siv cua sov- kev sib khi lossis kev xaws kom ntseeg tau tias cov hmoov tsis cuam tshuam los ntawm sab nraud ib puag ncig thaum thauj thiab khaws cia.
Optimizing cov txheej txheem bagged hmoov molding yuav tsum muaj kev xav txog cov yam ntxwv ntawm cov khoom siv raw, xaiv cov khoom siv, thiab cov txheej txheem tsis ua kom tiav thiab ruaj khov thiab ua tau raws li cov kev xav tau ntawm cov kev lag luam sib txawv.
