Vim nws lub zog tshwj xeeb zoo heev, kev tiv thaiv corrosion, kev ua haujlwm siab kub thiab biocompatibility, titanium alloys tau siv dav hauv aerospace, tub rog kev lag luam, kev lag luam hauv pej xeem thiab lwm yam. Txawm li cas los xij, qhov nyuaj ntawm titanium alloy yog qhov tsawg thiab qhov hnav tsis txaus, uas txwv nws daim ntawv thov hauv qee qhov chaw tshwj xeeb. Txhawm rau txhim kho cov khoom no, cov kws tshawb fawb tau tsim ntau yam txheej txheem kho saum npoo los txhim kho cov khoom nto ntawm titanium alloys.
1. Kev kho deg oxidation
Ib qho oxide zaj duab xis tau tsim los txhim kho lubricity ntawm titanium alloy nto thiab txo qhov adhesion thaum lub sij hawm kos duab.
2. Txheej kev kho mob
- Graphite emulsion txheej
Kev siv graphite emulsion ua ntej kub kub tsis tsuas yog muab lubrication tab sis kuj tiv thaiv qhov chaw ntawm qhov khoob ntawm oxidation. Cov kev xav tau rau graphite emulsion suav nrog cov ntsiab lus graphite ntawm 20%-25%, qhov loj me ntawm 1-3um, thiab ib qho kev sib txuas rau saum npoo ntawm qhov khoob.
- Ntsev lime txheej
Ib qho kev tsim tshwj xeeb ntawm cov kua qaub kua qaub txheej, xws li 12% Na2SO4, 12% CaO, 0.3% Na3PO4, 0.2% NaCl thiab cov npoo dej, ntxiv los ntawm kev sib xyaw ntawm 75% xab npum hmoov thiab 25% sulfur hmoov tau siv los ua cov hmoov nplej zoo.
- Kev kho mob fluorophosphate
Tom qab ntxuav qhov saum npoo ntawm cov hlau dawb paug los ntawm kev siv lub cev, cov txheej txheem hloov kho yog tsim rau ntawm qhov chaw los ntawm dipping txheej txheej, thiab tom qab ntawd cov roj nplua nyeem yog coated kom tau txais cov nyhuv lubrication ntawm kev sib txhuam coefficient thiab hnav tsis kam.
3. Plating hlau zaj duab xis
Cov yeeb yaj kiab hlau xws li tooj liab, chromium, npib tsib xee lossis tin yog plated rau saum npoo ntawm titanium alloy kom txo tau cov hlau ncaj qha thaum lub sij hawm kos duab, yog li txo qhov adhesion.
4. Kev kho mob Borylation
Muab cov titanium alloy xaim rau hauv cov tshuaj tov uas muaj KFB4, BaCl2 thiab NH4NO3, kub kom npau npau, ces tsau nws, tshem nws, ntxuav thiab qhuav nws, thiab tsim ib txheej ntawm fluoroborate rau saum npoo ntawm cov hlau. Nws tseem yog ib qho tsim nyog yuav tsum tau siv ib txheej ntawm aluminium disulfide rau saum npoo ntawm cov hlau ua cov roj nplua nyeem nyob rau hauv qhov chaw txias.
5. Kev kho tshuaj hloov pauv
Ib tug ntom tshuaj hloov dua siab tshiab zaj duab xis yog tsim nyob rau saum npoo ntawm titanium alloy los ntawm kev kho tshuaj hloov dua siab tshiab. Cov yeeb yaj kiab no tuaj yeem siv los ua cov txheej txheem lubricating rau adsorb lubricant, kom lub ntsej muag ntawm cov hlau yog du tom qab ntau dhau ntawm kev kos duab, tsis muaj adhesion thiab plam cov cim.
6. Lubricant xaiv
Xaiv cov roj nplua nyeem uas tsim nyog, xws li cov xab npum muaj hmoov, graphite emulsion thiab sib tov ntawm xab npum hmoov thiab lwm yam ntaub ntawv, yuav tsum muaj qhov zoo infiltration nrog txheej, zoo thermal stability.
7. Laser nto kho
Laser kho technologies, xws li laser cladding, laser nto alloying thiab laser nto quenching, tuaj yeem txhim kho cov hnav tsis kam, corrosion kuj thiab hardness los ntawm kev hloov cov microstructure ntawm txheej txheej. Qhov kom zoo dua ntawm kev kho laser yog tias cov khoom nto tuaj yeem txhim kho tau zoo yam tsis tau hloov cov khoom ntawm titanium alloy matrix.
8. Micro-arc oxidation
Qhov no yog ib qho kev siv tshuab ntawm kev loj hlob ntawm cov yeeb yaj kiab ceramic rau ntawm qhov chaw ntawm titanium alloy, uas tuaj yeem tsim cov txheej txheem ntawm cov yeeb yaj kiab ceramic nrog zoo heev corrosion kuj thiab hnav tsis kam ntawm titanium alloy. Micro-arc oxidation thev naus laus zis muaj cov yam ntxwv ntawm kev tiv thaiv ib puag ncig ntsuab, nyob rau hauv txoj kab nrog kev txhim kho kom ruaj khov.
9. Ion implantation
Los ntawm kev txhaj tshuaj nitrogen, oxygen, carbon thiab lwm yam khoom rau hauv qhov chaw ntawm titanium alloys, qhov tawv tawv thiab hnav tsis kam tuaj yeem txhim kho. Lub thickness ntawm ion implantation txheej feem ntau yog nyob rau theem nanometer, uas tuaj yeem txhim kho cov khoom nto ntawm titanium alloys.
10. Thermal diffusion txoj kev
Los ntawm kis cov ntsiab lus alloying rau saum npoo ntawm titanium alloy ntawm qhov kub thiab txias, txheej txheej txheej txheej yog tsim, yog li txhim kho hardness thiab hnav tsis kam ntawm qhov chaw.
