Kev sib piv ntawm iav iav sib tsoo txheej txheem thiab Sandblasting txheej txheem
Sandblasting yog ib txoj haujlwm uas siv cov cua compressed ua lub zog los thawb cov abrasives rau saum npoo ntawm lub workpiece rau kev kho mob. Qhov no yog hu ua sandblasting, los yog qhov peb feem ntau hu ua txhaj tshuaj peening. Vim hais tias nyob rau hauv thaum ntxov hnub ntawm kev txhaj tshuaj peening, xuab zeb yog tsuas yog abrasive uas yuav siv tau, txhaj tshuaj peening yog hu ua grit blasting nyob rau hauv lub sij hawm thiab ntev tom qab ntawd. Sandblasting tuaj yeem ua tiav qhov kev xav tau huv thiab qee qhov roughness ntawm qhov chaw yuav tsum tau ntxuav, thiab txhim kho cov adhesion ntawm txheej ntawm lub hauv paus nto. Txawm hais tias cov txheej txheej zoo npaum li cas, nws tsis tuaj yeem ua raws li qhov chaw ua haujlwm yam tsis muaj kev kho deg ntev. Lub hom phiaj ntawm kev kho deg yog los ntxuav qhov chaw thiab tsim cov roughness yuav tsum tau "lock" txheej rau saum npoo. Tom qab lub npoo ntawm lub workpiece tom qab sandblasting yog coated nrog ib tug muaj txheej txheej nrog kev ua tau zoo, lub neej kev pab cuam ntawm lub txheej yog 3.5 lub sij hawm ntev tshaj li qhov zoo tib yam txheej rau saum npoo kho los ntawm lwm txoj kev. Lwm qhov zoo dua ntawm sandblasting (steev peening) yog qhov roughness ntawm qhov chaw tuaj yeem txiav txim siab ua ntej ntawm kev thov thiab tuaj yeem ua tiav thaum lub sijhawm ntxuav.
Frosting yog txheej txheem uas cov iav fwj ua kom du thiab matte, thiab lub teeb ci rau saum npoo los ua ib qho kev xav. Hauv tshuaj sanding, iav yog mechanically los yog tes-hauv av nrog emery, silica xuab zeb, pomegranate hmoov, thiab lwm yam abrasives los tsim ib tug uniformly ntxhib saum npoo, los yog iav thiab lwm yam khoom yuav kho nrog ib tug hydrofluoric acid tov los tsim frosted iav.
Ob qho tib si frosting thiab sandblasting yog siv los npog cov iav saum npoo kom lub teeb hla dhau lub teeb ci los ua ib qho kev sib txawv. Nws yog qhov nyuaj rau cov neeg siv nruab nrab kom paub qhov txawv ntawm ob lub thev naus laus zis. Cov txheej txheem tsim khoom rau txhua tus ntawm ob lub thev naus laus zis no thiab yuav ua li cas txheeb xyuas lawv tau piav qhia hauv qab no.
1. txheej txheem txhuam
Frosting yog hais txog immersing lub iav nyob rau hauv ib tug npaj acidic kua (los yog siv ib tug acidic muab tshuaj txhuam), etching iav nto nrog muaj zog acid, thiab ammonium hydrogen fluoride nyob rau hauv cov kua qaub muaj zog ua rau lub iav nto los ua crystals. Yog li ntawd, yog tias cov txheej txheem frosting ua tiav zoo, qhov saum npoo ntawm cov iav frosted yog du heev, thiab cov muaju tsim los ntawm kev tawg ua rau cov nyhuv hazy. Yog hais tias qhov saum npoo yog qhov ntxhib, qhov no qhia tau hais tias cov kua qaub ua rau lub khob hnyav heev, lossis qee qhov ntawm lawv tseem tsis muaj crystal. Cov txheej txheem yog tus cwj pwm los ntawm cov tsos ntawm ci ntsa iab crystals ntawm qhov chaw ntawm cov iav tsim nyob rau hauv cov xwm txheej tseem ceeb. Qhov laj thawj tseem ceeb yog tias ammonium hydrogen fluoride tau mus txog qhov uas nws yuav luag noj. Yuav kom ua tiav lub xeev no, ntau lub tuam txhab tau ua ntau yam kev sim thiab kev tshawb fawb, tab sis tsis muaj peev xwm kov yeej qhov nyuaj no.
2. Sandblasting tshuab
Nws siv cov xuab zeb hais tawm ntawm kev kub ceev los ntawm rab phom tsuag los tsoo lub iav nto los ua ib qho zoo concave-convex nto, thiaj li ua tiav cov nyhuv ntawm tawg lub teeb, tsim kom muaj kev ntxhov siab thaum lub teeb hla. Qhov saum npoo ntawm cov khoom iav tsim los ntawm cov txheej txheem sandblasting yog ntxhib. Vim hais tias cov iav nto puas lawm, nws zoo li iav dawb ntawm photosensitivity ntawm thawj iav ntshiab.
Ob txheej txheem sib txawv kiag li. Frosted iav yog kim dua li cov iav sandblasted, thiab cov nyhuv feem ntau yog nyob ntawm qhov xav tau ntawm tus neeg siv. Qee cov tsom iav tshwj xeeb tsis haum rau frosting. Los ntawm qhov pom ntawm kev ua siab zoo, koj yuav tsum xaiv frosted. Cov txheej txheem sandblasting tuaj yeem ua tiav hauv cov chaw tsim khoom, tab sis cov txheej txheem sandblasting tsis yooj yim ua kom zoo.
