Vim qhov tsawg ntom ntom ntawm titanium alloy, cov kua dej inertia kuj tsawg, thiab cov fluidity tsawg ntawm molten titanium ua rau qis casting txaus. Titanium castings 'ntws thiab sab hauv qhov chaw muaj qhov pores thiab lwm yam tsis zoo, muaj qhov cuam tshuam tsis zoo rau qhov zoo ntawm titanium castings. Cov lus qhia hauv qab no titanium forging deg kho cov lus qhia tau teem rau hauv kev txiav txim hauv qab no:
tshem tawm cov txheej txheem saum npoo ua ntej
Lub hauv paus tseem ceeb cuam tshuam rau lub cev thiab tshuaj lom neeg cov yam ntxwv ntawm titanium castings yog txheej txheej txheej txheej. Txhawm rau tsim cov nyhuv polishing zoo, txheej txheej txheej txheej yuav tsum raug tshem tawm tag nrho ua ntej kev sib tsoo thiab polishing titanium castings. Pickling tuaj yeem siv kom huv si tshem tawm cov titanium txheej txheej txheej tom qab sandblasting.
1. Sandblasting: Dawb corundum ntxhib blasting ua haujlwm zoo rau kev kho sandblasting ntawm titanium castings, thiab lub siab siv qis dua qhov uas siv rau cov hlau tsis muaj nuj nqis, uas feem ntau khaws cia hauv qab 0.45Mpa. Vim tias thaum txhaj tshuaj siab dhau lawm, cov xuab zeb tsoo lub titanium nto ua rau muaj qhov kub hnyiab, thiab qhov kub thiab txias tuaj yeem ua rau lub ntsej muag titanium, ua rau cov pa phem thiab ua rau lub ntsej muag tsis zoo. Tsuas yog cov xuab zeb nplaum, txheej txheej sintered, thiab ib feem ntawm oxide txheej ntawm qhov chaw casting yuav tsum tau muab tshem tawm thaum lub sijhawm 15-30 thib ob. Nws yog ib qho tseem ceeb kom ceev nrooj tshem tawm cov txheej txheem reactive seem ntawm qhov chaw siv tshuaj tua kab mob.
2. Pickling: Pickling tuaj yeem nrawm nrawm thiab tshem tawm tag nrho cov txheej txheem saum npoo thaum tiv thaiv cov ntaub ntawv ntxiv los ntawm kev sib kis ntawm qhov chaw. Ob lub HF-HCl system thiab HF-HNO3 system tuaj yeem siv los khaws cov titanium, txawm li cas los xij HF-HCl system absorbs hydrogen ntau dua li HF-HNO3 system ua. Yog li ntawd, qhov concentration ntawm HNO3 tuaj yeem hloov kho kom txo qis hydrogen nqus thiab ci ntsa iab. HF feem ntau muaj nyob rau hauv cov concentration ntawm 3 feem pua thiab 5 feem pua. HNO3 yuav tsum muaj nyob rau hauv cov concentration ntawm 15% mus rau 30 feem pua.
ob: Kev kho qhov tsis zoo ntawm casting
Kub isostatic pressing tshuab tuaj yeem tshem tawm cov qhov hauv sab hauv thiab shrinkage flaws, tab sis nws cuam tshuam rau qhov tseeb ntawm cov hniav hniav. Z yuav tom qab siv laser vuam, polishing nto kom tshem tawm cov pores, thiab kuaj X-ray. Laser welding hauv zos tuaj yeem kho qhov chaw porosity tam sim ntawd.
Peb: polishing thiab sib tsoo
1. Kev sib tsoo tshuab: Vim yog titanium cov tshuaj muaj zog heev, tsis tshua muaj thermal conductivity, siab viscosity, thiab tsis tshua muaj kev sib tsoo tshuab, cov khoom siv zoo tib yam yuav tsum tsis txhob siv rau titanium sib tsoo thiab polishing. Hloov chaw, superhard abrasives nrog zoo thermal conductivity, zoo li pob zeb diamond thiab cubic boron nitride, yog qhov zoo tshaj plaws. Polishing linear ceev yog feem ntau 900-1800 m / min. Tsis tas li ntawd, titanium nto yog qhov ua rau microcracks thiab sib tsoo kub.
2. Tshuaj polishing: Yuav kom ua tiav lub hom phiaj ntawm leveling polishing, cov hlau tau dhau los ntawm REDOX cov tshuaj tiv thaiv hauv cov tshuaj nruab nrab. Nws cov txiaj ntsig suav nrog qhov tseeb tias cov tshuaj polishing tsis muaj dab tsi cuam tshuam nrog cov hlau hardness, polishing cheeb tsam, thiab cov qauv zoo, qhov twg cov khoom hauv kev sib cuag nrog cov kua polishing yog polished, tsis muaj cov cuab yeej tshwj xeeb uas xav tau, kev ua haujlwm yooj yim, thiab nws haum rau complex titanium hniav nyiaj hniav kub txhawb cov qauv. Nws yog ib qho tsim nyog kom muaj cov nyhuv polishing zoo yam tsis muaj kev cuam tshuam qhov tseeb ntawm cov hniav hniav vim tias cov txheej txheem tsis zoo ntawm cov tshuaj polishing yog qhov nyuaj rau kev tswj.
Plaub, xim
Nto nitriding kev kho mob, atmospheric oxidation, thiab anodic oxidation nto xim kev kho mob yuav siv tau los tsim ib lub teeb daj los yog golden daj saum npoo, txhim kho cov tsos ntawm titanium hniav hniav thiab tiv thaiv yellowing ntawm titanium hniav nyob rau hauv tej yam kev mob. Cov txheej txheem anodizing tsim cov xim ib txwm siv los ntawm kev siv titanium oxide zaj duab xis cuam tshuam nrog lub teeb. Los ntawm kev hloov lub tank voltage, nws tuaj yeem tsim cov xim vibrant ntawm titanium nto.
