Muaj ntau txoj kev kho saum npoo rau titanium, suav nrog ion nitriding (lossis plasma nitriding), deg deposition ntawm titanium nitride, ion implantation, nto alloying thiab nto txau ntawm ceramic coatings.
1. Kev kub siab thiab hnav-tiv taus txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej rau titanium alloy Cheebtsam
1) Hnav-resistant txheej npaj technology
Hnav yog ib qho ntawm cov laj thawj tseem ceeb ntawm cov khoom siv tshuab tsis ua haujlwm, suav txog kwv yees li 60% mus rau 80% ntawm cov khoom siv tshuab tsis ua haujlwm, thiab muaj kev cuam tshuam zoo rau lub neej thiab kev ntseeg siab ntawm cov khoom siv tshuab. Kev hnav tsis kam ntawm titanium thiab titanium alloys yog qhov tsis zoo, kev sib txhuam coefficient loj, thiab hnav tsis ua haujlwm yog qhov tshwm sim. Hnav-resistant txheej txheej txheej txheej txheej txheem yog ib qho tseem ceeb txhais tau tias los txhim kho cov hnav tsis kam ntawm titanium thiab nws cov alloys. Tam sim no, cov txheej txheem tshawb fawb ntau ntxiv suav nrog kev siv tshuaj thermal, electroplating thiab tshuaj plating, vapor deposition, ion implantation technology, nitriding, thiab 170 marine nitriding. Engineering titanium hlau cov ntaub ntawv carbon, boronization, micro-arc oxidation thiab composite nto kho tshuab, thiab lwm yam.
2) Kub resistant txheej txheej txheej txheej txheej txheej txheem
Nrog rau kev siv cov titanium alloys hauv nkoj roj turbines, cov kev xav tau siab dua tau muab tso rau ntawm lawv qhov kub-kub oxidation tsis kam. Thaum titanium siv los ua cov roj turbine hniav, thiab lwm yam, nws muaj qhov tsis zoo rau qhov kub-kub oxidation thiab ua rau "oxygen embrittlement". Uas yog, tom qab lub sij hawm ntev raug rau high-kub huab cua, ib tug brittle oxide txheej yuav tsim nyob rau saum npoo ntawm titanium, uas yuav embrittle lub titanium alloy thiab txo lub elongation. Nws tuaj yeem ncav cuag li 50%. Txawm li cas los xij, nws yog ib qho nyuaj rau kev txhim kho oxidation tsis kam ntawm titanium alloys los ntawm alloy muaj pes tsawg leeg optimization tsim los yog microstructure tswj txoj kev. Kev hloov kho deg thiab txheej txheej txheej txheem yuav tsum tau siv los txhim kho nws.
3) Kub hnav-tiv taus txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej
Nkoj roj turbine hniav yuav raug hnav nyob rau hauv high-temperature. Vim yog ob qho kev cuam tshuam ntawm hnav thiab kub siab, qhov kev puas tsuaj ntawm cov khoom yog nrawm. Yog li ntawd, nws yog ib qho tseem ceeb heev uas yuav tsum tau kawm txog qhov kub-kub hnav mechanism, tsim cov khaub ncaws hnav-tiv taus, thiab txhim kho qhov kub thiab txias hnav. lub ntsiab lus. Cov ntaub ntawv ceramic feem ntau yog ua ke nrog ionic bonds thiab covalent bonds. Lawv muaj cov khoom siv hluav taws xob siab thiab muaj zog sib cuam tshuam ntawm lub zog sib txuas, uas ua rau cov ntaub ntawv ceramic muaj qhov zoo ntawm cov ntsiab lus melting siab, siab hardness, siab tshuaj stability thiab tsis tshua muaj kev sib txhuam coefficient. Los ntawm plasma spraying thiab laser cladding Lub tshuab tuaj yeem npaj cov txheej txheem ceramic rau saum npoo ntawm titanium alloy los tsim cov ceramic titanium alloy composite. Cov txheej txheem kev npaj tam sim no suav nrog plasma txau nano-ceramic txheej, txias txau nano-TiO2 txheej, laser txau thiab laser cladding.
2. Kev npaj tshuab rau kev sib txhuam-txo thiab hnav-resistant txheej ntawm titanium alloy Cheebtsam
1) Antifriction txheej npaj technology
Nyob rau hauv kev teb rau kev sib txhuam-txo cov kev xav tau ntawm cov khoom xws li marine gears, pistons, li qub, thiab titanium springs, nws tus kheej-lubricating cov ntaub ntawv xws li graphite, molybdenum disulfide, polytetrafluoroethylene, lead oxide, thiab fluoride yog ntxiv rau tsim ib tug sib txawv ntawm ob. nto. Ib txheej ntawm cov khoom lubricating zaj duab xis tuaj yeem txo qhov kev sib txhuam coefficient thiab ua rau kom hnav tsis kam ntawm cov khoom. Antifriction txheej npaj muaj xws li magnetron sputtering MoS z txheej, plasma txau PTFE txheej, electrodeposition txheej txheem npaj (Ni-P)-graphite composite txheej tshuab, thiab lwm yam.
(2) Kev npaj thev naus laus zis los tiv thaiv kev sib txhuam thiab hnav-resistant txheej
Hauv kev teb rau qhov xav tau tiag tiag rau kev sib txhuam txo thiab hnav tsis kam ntawm titanium cov ntaub ntawv, los ntawm kev kho qhov chaw tsim nyog ntawm titanium thiab titanium alloys, antifriction thiab hnav-resistant coatings yog npaj rau ntawm qhov chaw ntawm titanium thiab titanium alloys los txhim kho kev sib txhuam ntawm ob yam khoom. nyob rau hauv txheeb ze motion, uas yog, kev sib txhuam khub. Hnav tsis kam thiab txo kev sib txhuam poob thaum lub sijhawm txav tuaj yeem ua tiav lub hom phiaj ntawm kev txo qis kev sib txhuam coefficient, txo kev sib txhuam thiab tswj kev hnav. Kev npaj cov txheej txheem los tiv thaiv kev sib txhuam thiab hnav-resistant coatings muaj xws li plasma carbonitriding, sulfur nitriding, sulfur nitrocarburizing, magnetron sputtering Ti/MoS2 txheej, lub cev vapor deposition TiAIN/TiN composite txheej, lub cev vapor theem Deposition ntawm TiN / TiCN multi-layer composite coatings , cathode arc qhov tso tawm ntawm pob zeb diamond-zoo li carbon films, high-power high repetition rate pulse excimer laser npaj ntawm pob zeb diamond zoo li carbon films, thiab lwm yam.
3. Kev npaj technology ntawm insulating txheej rau hlau Cheebtsam
Txawm hais tias titanium alloys muaj kev tiv thaiv zoo heev, thaum titanium alloys siv rau hauv kev sib cuag nrog cov hlau tsis sib xws hauv cov dej hiav txwv thiab dej hiav txwv atmospheric corrosive ib puag ncig, muaj peev xwm sib txawv yog tsim los ntawm lub peev xwm siab ntawm TiO2 zaj duab xis electrode ib txwm tsim nyob rau saum npoo, thiab lub peev xwm. qis dua. Qhov saum npoo ntawm cov hlau tsis sib xws yuav raug oxidized, ua rau cov khoom siv corrosion tsis ua haujlwm. Yog li ntawd, txhawm rau kom tsis txhob muaj kev xeb hauv cov dej hiav txwv ntawm cov kav dej, cov kav dej thiab lwm yam khoom siv hauv nkoj ua los ntawm tooj liab, tooj liab thiab hlau uas muaj kev sib cuag nrog titanium alloy thaum siv, cov txheej txheem kho kom zoo yuav tsum tau siv los tsim cov txheej txheem ntawm qhov chaw. ntawm titanium alloy. Ib qho insulating anti-corrosion txheej los txhim kho corrosion kuj ntawm titanium thiab lwm yam ntaub ntawv hlau. Kev npaj cov txheej txheem ntawm insulating thiab anti-corrosion txheej muaj xws li micro-arc oxidation ceramic insulating txheej, micro-arc oxidation nano-ceramic txheej, anodized insulating txheej, thiab lwm yam.
