cryogenic defiashing thev naus laus zis tau tsim thawj zaug hauv xyoo 1950.Nyob rau hauv txoj kev loj hlob ntawm cryogenic defiashingmachines, nws tau dhau los ntawm peb lub sijhawm tseem ceeb.Ua raws li hauv kab lus no kom nkag siab tag nrho.
(1) Ua ntej cryogenic deflashing tshuab
Lub nruas khov yog siv los ua lub thawv ua haujlwm rau khov edging, thiab cov dej khov qhuav tau pib xaiv ua cov tub yees.Cov khoom yuav tsum tau kho yog loaded rau hauv lub nruas, tejzaum nws nrog ntxiv ntawm ib co tsis sib haum xeeb ua hauj lwm xov xwm.Qhov kub hauv lub nruas yog tswj kom ncav cuag lub xeev uas cov npoo yog nkig thaum cov khoom nws tus kheej tseem tsis cuam tshuam.Yuav kom ua tiav lub hom phiaj no, lub thickness ntawm cov npoo yuav tsum yog ≤0.15mm.Lub nruas yog qhov tseem ceeb ntawm cov khoom siv thiab yog octagonal hauv cov duab.Qhov tseem ceeb yog los tswj qhov cuam tshuam qhov taw tes ntawm cov xov xwm ejected, tso cai rau lub voj voog ncig ua rau rov tshwm sim dua.
Lub nruas rotates counterclockwise rau tumble, thiab tom qab ib lub sij hawm ntawm lub sij hawm, lub flash edges ua nkig thiab cov txheej txheem edging tiav.Qhov tsis xws luag ntawm thawj tiam khov edging yog tsis tiav edging, tshwj xeeb tshaj yog residual flash npoo ntawm qhov kawg ntawm txoj kab parting.Qhov no yog tshwm sim los ntawm kev tsim pwm tsis txaus lossis ntau dhau ntawm cov roj hmab txheej ntawm txoj kab sib cais (ntau dua 0.2 hli).
(2) Qhov thib ob cryogenic deflashing tshuab
Qhov thib ob cryogenic deflashing tshuab tau ua peb txoj kev txhim kho raws li thawj tiam.Ua ntej, cov tub yees hloov mus rau cov kua nitrogen.Cov dej khov qhuav, nrog rau qhov taw tes sublimation ntawm -78.5 ° C, tsis haum rau qee cov roj hmab uas tsis tshua muaj kub, xws li roj hmab silicone.Cov kua nitrogen, nrog rau qhov kub ntawm -195.8 ° C, yog haum rau txhua hom roj hmab.Qhov thib ob, kev txhim kho tau ua rau lub thawv uas tuav cov khoom yuav tsum tau txiav.Nws yog hloov los ntawm lub nruas rotating mus rau ib tug trough-shaped conveyor siv raws li tus cab kuj.Qhov no tso cai rau cov khoom mus rau hauv qhov zawj, txo qhov tshwm sim ntawm qhov chaw tuag.Qhov no tsis tsuas yog txhim kho kev ua tau zoo tab sis kuj txhim kho qhov tseeb ntawm edging.Thib peb, es tsis txhob cia siab rau kev sib tsoo ntawm qhov chaw kom tshem tawm cov npoo flash, nplua-grained blasting media yog qhia.Hlau lossis tawv yas pellets nrog qhov loj me ntawm 0.5 ~ 2mm raug tua ntawm qhov chaw ntawm qhov nrawm ntawm 2555m / s, tsim kom muaj kev cuam tshuam loj.Qhov kev txhim kho no ua rau lub sij hawm voj voog luv luv.
(3) Qhov thib peb cryogenic deflashing tshuab
Qhov thib peb cryogenic deflashing tshuab yog kev txhim kho raws li qhov thib ob tiam.Lub thawv rau qhov yuav tsum tau txiav yog hloov mus rau ib lub pob tawb nrog perforated phab ntsa.Cov qhov no npog cov phab ntsa ntawm lub pob tawb nrog ib txoj kab uas hla ntawm 5 hli (loj tshaj li txoj kab uas hla ntawm qhov projectiles) kom cov projectiles hla lub qhov kom du thiab poob rov qab rau saum cov khoom siv rov qab siv dua.Qhov no tsis tsuas yog nthuav tawm lub peev xwm zoo ntawm lub thawv tab sis kuj txo qhov ntim ntawm qhov cuam tshuam kev tshaj tawm (projectiles).Lub pob tawb tsis yog vertically positioned nyob rau hauv lub trimming tshuab, tab sis muaj ib tug tej yam inclination (40 ° ~ 60 °).Lub kaum sab xis inclination no ua rau lub pob tawb tig rau lub sijhawm ua haujlwm vim yog kev sib xyaw ntawm ob lub zog: ib qho yog lub zog tig los ntawm lub pob tawb nws tus kheej tumbling, thiab lwm yam yog lub zog centrifugal tsim los ntawm qhov projectile.Thaum ob lub zog sib xyaw ua ke, 360 ° omnidirectional txav tshwm sim, tso cai rau cov khoom kom tshem tawm cov npoo flash sib npaug thiab tag nrho ntawm txhua qhov kev qhia.
Post lub sij hawm: Aug-08-2023