Titanium alloy forging sib tsoo tshuab
1. Nyuaj hauv kev sib tsoo thiab polishing titanium alloys
Kev npaj ntawm metallographic qauv ntawm titanium thiab titanium alloys yog nyuaj dua li cov hlau. Nws kev sib tsoo thiab polishing efficiency yog tsawg. Kev txiav thiab polishing ntau dhau yuav ua rau deformation ntxaib hauv theem. Tom qab deformation ntxaib yog generated, lub microstructure ntawm titanium yuav hloov. Kev tshuaj xyuas yuav cuam tshuam.
Txias mounting ntawm ntshiab titanium yog tsim nyog tshaj li kub siab mounting. Kub siab mounting tej zaum yuav hloov cov ntsiab lus thiab faib ntawm hydrogen nyob rau hauv ntshiab titanium. Nws yog ib qho nyuaj heev kom tshem tawm khawb thiab yas rheology los ntawm ntshiab titanium thaum lub sij hawm ua qauv.
2. Taw qhia txog cov yam ntxwv metallographic ntawm titanium thiab titanium alloys
Titanium thiab titanium alloys tau ua lag luam siv ntau tshaj 50 xyoo. Lawv muaj qhov zoo ntawm qhov ceev qis, lub zog zoo rau qhov hnyav piv, zoo corrosion tsis kam thiab muaj zog dua. Qhov tsis zoo yog tias titanium thiab titanium alloys kim heev los tsim.
Titanium, zoo li hlau, muaj kev hloov pauv ntawm allotropic. Zoo li cov hlau, titanium kuj tuaj yeem kho cua sov, thiab cov ntsiab lus alloying muaj qee yam cuam tshuam rau kev ruaj ntseg ntawm cov theem qis thiab qhov kub thiab txias.
Nyob rau hauv chav tsev kub, cov theem ruaj khov ntawm titanium thiab titanium alloys muaj xws li alloy-muaj , - thiab theem. Lwm ob theem yog: nyob ze thiab ze rau theem.
3. Kev tsim kho ntawm titanium alloy polishing tshuab
Thaum ntxov, cov txheej txheem polishing tshuab tau siv sijhawm ntev heev, thiab yuav luag txhua txoj kev siv tshuab polishing siv polishing cov kev daws teeb meem uas muaj cov tshuaj erosive hauv cov kauj ruam kawg lossis ob kauj ruam polishing.
Txoj kev polishing electrolytic feem ntau tuaj yeem tau txais qhov zoo dua polished nto, tab sis muaj qee yam kev phom sij hauv cov tshuaj electrolytic thaum lub sij hawm electrolytic polishing txheej txheem. Cov kev daws teeb meem electrolytic no kuj muaj qee cov tshuaj polishing los.
Nyob rau xyoo 1970 thiab 1980s, cov txheej txheem polishing ntawm titanium thiab titanium alloys tseem txuas ntxiv cov txheej txheem polishing qub. Springer thiab Ahmed thawj zaug luam tawm ib tsab xov xwm ntawm txoj kev polishing ntawm titanium thiab titanium alloys hauv xyoo 1984.
Qhov no yog peb-kauj ruam qauv polishing txoj kev, xav tias 320grit sandpaper yog siv los ua kom tiav cov qauv kev sib tsoo, tab sis qhov no yuav tsis yog ib txwm. Yog hais tias ib tug ultra-nyias txiav disc los yog ib tug sib tsoo log txiav disc uas tsim nyog lub zog yog siv thaum txiav cov qauv, txiav nto yog du thiab cov txheej puas yog tsawg, ces 320grit sandpaper tuaj yeem siv los ua kom tiav cov txheej txheem sib tsoo ntawm cov qauv. . Yog tias qhov chaw tom qab txiav yog ntxhib thiab txheej txheej puas loj. Piv txwv li, txiav nrog band saws tuaj yeem tsim cov txiaj ntsig zoo li no. Hauv qhov no, koj yuav tsum siv cov ntawv xuab zeb coarser thiab siv sijhawm qee lub sijhawm kom tshem tawm cov txheej puas.
4. Springer thiab Ahmed titanium alloy peb-kauj ruam polishing tshuab
1) Sib tsoo du, siv 320grit sandpaper kom txias nrog dej, thiab zom rau 2 mus rau 3 feeb kom tshem tawm cov txheej puas los ntawm kev txiav thiab ua rau saum npoo ntawm cov qauv tiaj tus. Siv 320gritSiC sandpaper, dej-txias, rotating ceev 240RPM, rotating tib yam kev taw qhia *, siab: 27N (6lbs) / txhua tus qauv kom txog thaum tus qauv yog av du.
Lus Cim: Tshem tawm cov txheej txheem kev puas tsuaj yog txoj haujlwm yooj yim ntawm polishing. Yog tias nws tsis raug tshem tawm tag nrho, qhov tshwm sim ncaj qha yog tias qhov tshwm sim pom yuav yog ib qho khoom cuav.
2) Rau polishing ntxhib, thov 9μm metaDI? pob zeb diamond polishing muab tshuaj txhuam rau ntawm qhov TEXMET? polishing daim ntaub ua ntej, siv dej distilled li txias lubricant, thiab polish rau 10 mus rau 15 feeb. Rough polishing txheej txheem: 9μmmetaDI pob zeb diamond polishing kua + metaDI polishing lubricant, siv ULTRA-PAD? polishing nto, ceev 120RPM, rov qab tig **, siab: 27N (6lbs) / txhua tus qauv, lub sijhawm 10min.
3) Rau polishing kawg, siv MICROCLOTH? los yog MASTERTEX? polishing ntaub, ntxiv MASTERMET? silica suspension polishing kua, thiab polish rau 10 mus rau 15 feeb. Cov txheej txheem polishing kawg: Siv MASTERMET silica polishing kua ntawm MICROCLOTH polished nto, rotating ceev 120RPM, thim rov qab, siab: 27N (6lbs) / txhua tus qauv, sij hawm 10min.
Lus Cim: Thaum lub sij hawm polishing, cov qauv yuav tsum tau tig tsis tu ncua. Muaj ib theem nyuaj hauv feem ntau cov hlau alloys. Yog hais tias qhov kev taw qhia tsis tig, cov qauv polished yuav muaj ib tug dub "ntev Tail" nyob rau theem nyuaj, uas cuam tshuam rau metallographic zoo. Kev daws Tus yuam sij rau qhov teeb meem "ntev Tail" nyob rau hauv cov kev taw qhia uas tus qauv tig. Nws tuaj yeem tig 90 degrees lossis 180 degrees txhua lub sijhawm.
5. Müller titanium alloy peb-kauj ruam polishing tshuab
1) P500 sandpaper yog dej-txias, kev sib hloov ceev yog 300rpm, lub siab ntawm txhua tus qauv yog 16.7N (3.75lb), thiab lub sij hawm npaj yog kom txog thaum tag nrho cov qauv yog smoothed.
2) P1200 sandpaper yog dej-txias, kev sib hloov ceev yog 300RPM, lub siab ntawm txhua tus qauv yog 16.7N (3.75lb), thiab lub sijhawm npaj yog 30S.
Nco tseg: Lub sijhawm tshwj xeeb yog txiav txim siab los ntawm tus kheej polishing. Lub sij hawm parameter tsuas yog siv. Feem ntau phau ntawv polishing yog siv. Tsis muaj cov cuab yeej zoo li no, yog li cov kev txwv yuav txawv.
3) Siv hluavtaws lint-dawb polishing daim ntaub + silica ncua kev polishing kua uas muaj tshuaj corrosives, polishing tshuab ceev 150RPM, polishing lub sij hawm: siab ntawm txhua tus qauv yog 33N (7.5lb) rau 10 feeb, siab ntawm txhua tus qauv yog 16.7N (3.75lb. ) rau 2 feeb thiab lub siab ntawm 8N (2lb) ntawm txhua tus qauv rau 1 feeb.
4) Polishing agent cov khoom xyaw: 260mlSiO2+40mlH2O2 (concentration 30%), 1mlHNO3+0.5mLHF. FEPA standard P500 thiab P1200 sandpaper grits sib haum rau ANSI / CAMI txuj 320/360 thiab 600grit sandpaper feem.
6. Qhov txawv ntawm phau ntawv polishing thiab tshuab polishing
1) Kev tuav polishing yuav tsum muaj kev paub. Lub zog ntawm tes, lub sijhawm, thiab kev sib hloov ceev txhua qhov yuav tsum tau muaj kev paub dhau los thiab kev ua haujlwm ntev los ua tus tswv ntawm cov ntsiab lus tseem ceeb no, thaum lub tshuab polishing tsuas yog yuav tsum tau teeb tsa qhov ntsuas. Rau cov novices, lawv feem ntau ua siab ntev thiab muaj teeb meem xws li tsis muaj polishing lossis over polishing.
2) Lub hauv paus ntsiab lus ntawm tshuab polishing thiab phau ntawv polishing yog tib yam. Feem ntau metallographic ua hauj lwm nyob rau hauv Tuam Tshoj yog tseem dominated los ntawm phau ntawv polishing. Kev tuav polishing yuav tsum tau ua siab ntev los ntawm cov neeg ua haujlwm metallographic. Over-polishing yuav tsum rov polishing. Txawm li cas los xij, tsuav koj muaj kev ua siab ntev, sim ntau dua thiab xaus, koj tuaj yeem tau txais kev zoo metallographic polishing. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum ua tib zoo sau cov kev paub dhau los, thiab tawm hws thaum kawg yuav tau txais txiaj ntsig.
