1. Xuab zeb blasting
Titanium hlau castings sandblasting kev kho mob feem ntau xaiv cov tshuaj dawb corundum zoo dua, sandblasting siab kom me dua cov hlau tsis muaj nqi, feem ntau tswj ntawm 0.45MPa hauv qab no. Vim hais tias, thaum lub dav hlau siab loj dhau lawm, cov xuab zeb cuam tshuam rau ntawm qhov chaw ntawm titanium ua rau cov nplaim taws, qhov kub thiab txias tuaj yeem hnov mob nrog rau saum npoo ntawm titanium, tsim cov pa phem thib ob, cuam tshuam rau saum npoo zoo. Lub sij hawm yog 15-30 vib nas this, tsuas yog tshem tawm cov xuab zeb nplaum rau ntawm qhov chaw ntawm cov casting, cov txheej txheej sintered thiab ib feem ntawm oxide txheej tuaj yeem ua tau. Tus so ntawm cov tshuaj tiv thaiv txheej txheej txheej yuav tsum raug tshem tawm sai sai los ntawm cov tshuaj pickling.
2. Acid ntxuav
Acid pickling tuaj yeem tshem tawm cov tshuaj tiv thaiv txheej txheem sai thiab tshem tawm tag nrho, thiab qhov chaw yuav tsis tsim lwm yam kev ua qias tuaj. HF-HCL system thiab HF-HNO3 system pickling tov yuav siv tau rau titanium pickling, tab sis HF-HCL system pickling kua absorbs hydrogen loj dua, thaum lub HF-HNO3 system pickling kua absorbs hydrogen yog me me, koj muaj peev xwm tswj cov concentration ntawm HNO3 kom txo tau qhov nqus ntawm hydrogen, thiab tuaj yeem ua rau saum npoo ntawm kev kho kom ci, feem ntau cov concentration ntawm HF hauv 3% -5% lossis yog li, HNO3 yog hais txog qhov concentration ntawm HF Feem ntau, qhov concentration ntawm HF yog hais txog. 3%-5%, thiab qhov concentration ntawm HNO3 yog li 15%{14}}%. Cov tshuaj tiv thaiv txheej nyob rau saum npoo ntawm titanium phaj thiab bar tuaj yeem raug tshem tawm tag nrho los ntawm txoj kev ntxuav cov kua qaub tom qab xuab zeb blasting.
Ntxiv nrog rau kev siv lub cev polishing ntawm titanium daim hlau thiab cov pas nrig, muaj ob hom tshuaj tiv thaiv txheej txheej, xws li: 1. tshuaj polishing, 2. electrolytic polishing.
1. Tshuaj polishing
Tshuaj polishing los ntawm cov hlau nyob rau hauv cov tshuaj nruab nrab ntawm redox cov tshuaj tiv thaiv thiab ua tiav lub hom phiaj ntawm leveling thiab polishing. Nws qhov zoo dua yog tias cov tshuaj polishing thiab hlau hardness, polishing cheeb tsam thiab cov qauv qauv tsis muaj dab tsi ua, txawm qhov twg hauv kev sib cuag nrog cov tshuaj polishing yog polished, tsis muaj cov cuab yeej tshwj xeeb, yooj yim rau kev khiav lag luam, tsim nyog rau cov qauv ntawm titanium hniav hniav bracket polishing. Tab sis cov txheej txheem tshuaj polishing tsis yooj yim rau kev tswj, qhov yuav tsum tau muaj nyob rau hauv cov ntaub ntawv ntawm cov hniav precision tsis cuam tshuam rau cov hniav hniav tuaj yeem muaj cov nyhuv polishing zoo. Qhov zoo dua titanium tshuaj polishing tov yog HF thiab HNO3 npaj nyob rau hauv ib qho kev faib ua feem, HF yog ib tug txo tus neeg sawv cev, muaj peev xwm yaj titanium hlau, ua si ib tug leveling nyhuv, lub concentration ntawm<10%, HNO3 play an oxidizing role, to prevent excessive dissolution of titanium and absorption of hydrogen, and at the same time, can produce a bright effect. Titanium polishing solution requires high concentration, low temperature, short polishing time (1 ~ 2min).
2. Electrolytic polishing
Kuj tseem hu ua electrochemical polishing lossis anodic dissolution polishing, vim qhov tsis tshua muaj hluav taws xob ntawm titanium alloy raj, oxidation zog muaj zog heev, kev siv cov aqueous acidic electrolyte xws li HF-H3PO4, HF-H2SO4 system electrolyte ntawm titanium yuav luag tsis tuaj yeem polished. , siv cov hluav taws xob sab nraud, titanium anode tam sim ntawd oxidized, thiab kom cov anodic dissolution tsis tuaj yeem nqa tawm. Txawm li cas los xij, kev siv cov tshuaj anhydrous chloride electrolyte ntawm qhov tsis tshua muaj hluav taws xob, titanium muaj cov nyhuv polishing zoo, cov qauv me me tuaj yeem tau txais daim iav polishing, tab sis rau cov kev kho kom zoo dua qub tseem tsis tuaj yeem ua tiav lub hom phiaj ntawm kev ua tiav polishing, tej zaum siv kev hloov pauv cov duab ntawm cov khoom siv. cov cathode thiab ntxiv cathode tuaj yeem daws tau, tab sis kuj yuav tsum tau kawm ntxiv.
