Cov txheej txheem sandblasting ntawmtitanium thiab titanium alloyCov ntaub ntawv yog ib qho tseem ceeb ntawm kev kho deg technology, uas yog lub hom phiaj kom tshem tawm cov oxide txheej thiab cov pa phem rau ntawm qhov chaw, txhim kho qhov roughness ntawm lub substrate, txhim khu lub adhesion ntawm txheej, los yog muab cov txheej txheem ntawm lub cev thiab tshuaj lom neeg, txhim kho cov neeg kho tshuab. cov khoom ntawm cov khoom, thiab lwm yam.
Sandblasting yog siv cov cua compressed los yog dej los txau cov abrasives ntawm kev kub ceev mus rau saum npoo ntawm titanium alloy kom tshem tawm cov oxide txheej, av, thiab impurities ntawm qhov chaw, yog li txhim kho qhov roughness thiab adhesion. Txoj kev no feem ntau yog siv rau kev kho deg ntawm titanium castings thiab forgings kom ntseeg tau tias cov nyhuv adhesion ntawm kev ua tom ntej lossis txheej. Sandblasting tsis yog tsuas yog siv los ntxuav thiab roughen saum npoo, tab sis kuj los txhim kho cov microstructure ntawm cov khoom los ntawm kev kho cov tsis. Piv txwv li, los ntawm sandblasting nrog ib txoj kab uas hla ntawm 0.5 ~ 2 hli, lub grain loj ntawm titanium alloy yuav raug txo kom txog li 44 nanometers, li no pab txhawb nws qaug zog kam rau ua thiab kev nyuaj siab-cracking kuj. Tsis tas li ntawd, ntub txhaj tshuaj blasting tshuab ua ke nrog ultrasonic kev co tuaj yeem txuas lub neej ntawm qhov projectile thiab ua kom lub zog tawm los hauv zos thaum txo qhov roughness.
Sandblasting yog dav siv nyob rau hauv kev kho mob cog, aerospace, thiab lwm yam teb. Piv txwv li, sandblasting rau ntawm qhov chaw cog qoob loo tuaj yeem ua rau thaj chaw saum npoo av, txhawb nqa cell adhesion thiab proliferation, thiab txhim kho pob txha muaj peev xwm. Nyob rau hauv kev sib xyaw molding ntawm cov ntaub ntawv sib xyaw thiab titanium alloys, sandblasting tuaj yeem txhim kho lub zog shear, uas muaj txiaj ntsig zoo rau kev sib txuas ntawm cov ntaub ntawv sib xyaw thiab titanium alloys.
Sandblasting cov ntaub ntawv Cov abrasives siv nyob rau hauv cov txheej txheem sandblasting feem ntau yog dawb corundum los yog quartz xuab zeb, uas yog high-hardness thiab muaj ib tug zoo tu nyhuv. Lub sandblasting siab feem ntau tswj hauv qab no 0.45MPa kom tsis txhob muaj kev puas tsuaj ntau dhau rau titanium nto. Qhov kev ncua deb ntawm lub nozzle thiab casting nto yuav tsum nyob nruab nrab ntawm 20mm thiab 400mm, thiab cov tshuaj tsuag lub kaum sab xis yuav tsum tau tswj ntawm 20 degree thiab 70 degree.
Dawb corundum
Dawb corundum abrasive muaj siab hardness thiab zoo hnav tsis kam, uas ua rau nws muaj zog txiav quab yuam thiab sib tsoo nyhuv thaum sandblasting, tshwj xeeb tshaj yog haum rau saum npoo ntawm cov ntaub ntawv nyuaj xws li titanium thiab titanium alloys. Dawb corundum sandblasting tuaj yeem ntxuav qhov chaw loj ntawm qhov chaw ua haujlwm, txhim kho kev ua haujlwm, thiab txhim kho cov adhesion ntawm txheej los ntawm kev kho roughening, yog li txhim kho qhov zoo ntawm lub workpiece. Tsis tas li ntawd, dawb corundum sandblasting tuaj yeem ua rau muaj qhov ntxhib ntawm qhov chaw ua haujlwm, uas tso cai rau cov txheej txheem ua kom zoo dua rau saum npoo thiab txuas lub neej kev pab cuam ntawm txheej.
Quartz xuab zeb
Quartz xuab zeb feem ntau yog siv rau kev kho mob me me hauv cov txheej txheem sandblasting. Nws hardness thiab hnav tsis kam yog qhov tsawg, yog li nws tsim nyog rau qee lub sijhawm uas qhov kev xav tau saum npoo tsis siab. Txawm li cas los xij, cov khoom ntawm quartz xuab zeb yog cov mos mos thiab tsis tshua muaj zog, yog li lawv yuav tsis muab lub zog txiav thiab sib tsoo zoo li dawb corundum thaum sandblasting.
SiO2 (silicon dioxide) SiO2 kuj yog cov khoom siv sandblasting, thiab nws qhov nyuaj thiab hnav tsis kam yog nruab nrab ntawm cov xuab zeb dawb corundum thiab quartz xuab zeb. Cov nyhuv ntawm SiO2 sandblasting tuaj yeem yog nruab nrab ntawm cov xuab zeb dawb corundum thiab quartz xuab zeb. Nws tuaj yeem muab qee qhov kev ntxhib los mos los txhim kho qhov adhesion ntawm txheej, tab sis nws yuav tsis ua rau muaj kev puas tsuaj ntau dhau rau cov khoom ua haujlwm zoo li dawb corundum. Dawb corundum feem ntau nyiam nyob rau hauv cov txheej txheem sandblasting ntawm titanium thiab titanium alloy cov ntaub ntawv vim nws cov hardness siab thiab muaj zog sib tsoo nyhuv kom ua tiav qhov zoo tshaj plaws kev kho mob nyhuv.
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