Titanium Phaj Life Extension Guide For Harsh Service Conditions

Titanium plate has the features of low density, high specific strength and excellent corrosion resistance. Nws yog ib qho yooj yim los ua tsis tau zoo nyob rau hauv huab ib puag ncig xws li kub siab, muaj zog corrosion, siab hnav thiab alternating load. Cov tsis ua haujlwm muaj xws li pitting corrosion, crevice corrosion, hydrogen embrittlement, hnav qaug zog thiab lwm yam. Nws yuav ua rau nws lub neej ua haujlwm luv. Yuav kom ua tiav lub neej ua haujlwm ntev rau titanium daim hlau, kev ua tsis tiav yuav tsum raug tiv thaiv los ntawm qhov chaw.

 

 

1.Corrosion-Txoj Kev Pabcuam Tseem Ceeb

Ntshiab titaniumNws muaj kev tiv thaiv corrosion zoo heev thiab nws yog ib qho yooj yim los tsim ib daim ntawv tuab TiO₂ passivation zaj duab xis rau saum npoo, tiv taus corrosive media xws li oxidizing acids thiab seawater. Haum rau qis- kub, qis- hnav thiab muaj zog corrosion scenarios, tab sis nrog nruab nrab lub zog thiab hnav tsis kam.

 

Titanium{0}}palladium alloy nrog palladium muaj kev tiv thaiv zoo heev rau crevice corrosion thiab txo cov kua qaub. Nws tuaj yeem daws qhov teeb meem pitting ntawm ntshiab titanium hauv siab -kub halide ion thiab dilute acid ib puag ncig.

 

Ti-6Al-4Vmuaj li ntawm ob zaug lub zog ntawm ntshiab titanium nrog zoo corrosion kuj. Haum rau kev sib xyaw corrosion thiab nruab nrab- tsis tshua muaj load, tab sis tsis tiv taus siab -kub concentrated hydrochloric acid thiab hydrofluoric acid.

 

2.Combined Wear thiab Corrosion Conditions

Ti-3Al-2.5Vmuajbalanced zog, formability thiab corrosion kuj, zoo erosion thiab abrasion tsis kam tshaj titanium ntshiab.

Titanium{0}}molybdenum-nickel alloy muaj resistant rau dilute sulfuric acid thiab hydrochloric acid corrosion, nrog zoo hnav tsis kam thiab qaug zog kuj.

 

3.Siab -Tsuas Kev Pabcuam Kub

Ti-6Al-2Sn-4Zr-2Mo muaj qhov zoo siab - kub lub zog thiab oxidation tsis kam .

 

Titanium aluminide hlau qhia tau qhov kub thiab txias, zoo heev -kub oxidation kuj thiab creep kuj.

 

Ua ntej tshaj qhov sib txuam corrosion, ces coj lub zog thiab hnav tsis kam rau hauv tus account. Cov titanium ntshiab tsis tuaj yeem siv los txo cov kua qaub thiab siab -kub halogen ib puag ncig kom tsis txhob muaj kev xeb.

 

 

1.Tus Qauv Tsim

Txo cov laps thiab cov ces kaum tuag, txais yuav tag nrho - nkag mus rau lub taub qab vuam, ua kom cov fillets, thiab xaiv qhov sib khi du kom tsis txhob muaj qhov nruab nrab.

Zam cov ces kaum ntse thiab ntu hloov pauv sai; txais yuav arc hloov ntawm cov npoo qhib. Tswj qhov roughness nyob rau hauv alternating loads kom txo tau microcracks.

Cais titanium los ntawm carbon steel, stainless hlau, tooj liab thiab lwm yam hlau nrog insulating gaskets, coatings los yog siv titanium clad daim hlau.

 

2.Kev tsim khoom

Txais VAR thiab electron beam txias hearth melting los tswj cov pa oxygen, nitrogen, hydrogen thiab suav nrog. Ua qhov kub thiab txias-tswj dov los ua kom cov nplej thiab homogenize microstructure.

Siv TIG vuam thiab plasma vuam nrog tag nrho argon tiv thaiv. Pickle thiab passivate tom qab vuam los kho cov zaj duab xis passivation thiab tshem tawm vuam slag thiab spatter.

Tshem tawm burrs, khawb thiab oxide nplai, thiab ua electrolytic lossis tshuaj polishing kom txo tau qhov kev pheej hmoo corrosion.

 

3.Composite Reinforcement

Titanium- steel clad daim hlau yog nyiam rau cov corrosion kuj thiab siab load tej yam kev mob, npaj los ntawm tawg cladding los yog yob cladding. 0.5-5mm titanium txheej ua kom muaj kev tiv thaiv corrosion thiab lub hauv paus steel muab lub zog siab. Tus nqi qis dua cov titanium daim hlau ntshiab.

 

 

1.Passivation thiab Oxidation Treatment

Thickening TiO₂ zaj duab xis los ntawm nitric acid immersion, tus nqi qis thiab cov txheej txheem yooj yim. Tsim nyog rau cov pa corrosion tab sis tsis hnav -resistant.

Tsim cov oxide zaj duab xis, txhim kho corrosion kuj li ntawm 50% thiab xim. Haum rau kev kho mob thiab marine Cheebtsam, tab sis cov zaj duab xis yog nkig.

Ua ib tug tuab ceramic oxide zaj duab xis nrog ua ke corrosion kuj, hnav tsis kam thiab kub tsis kam, muaj zog adhesion. Haum rau kev sib xyaw ua ke, hnav thiab siab - qhov kub thiab txias.

 

2.Hard Txheej Technology

Depositing TiN, TiAlN, DLC thiab lwm yam txheej nrog siab hardness, kev sib txhuam txo, hnav thiab corrosion kuj. Gradient coatings muaj kev tiv thaiv corrosion zoo dua.

Txau cov txheej txheem ceramic rau hnav thiab kub tsis kam, feem ntau yog siv rau cov ntaub ntawv loj thiab cov khoom siv mining, yuav tsum tau kho kev sib khi.

Ua kom siab - hardness reinforced txheej, txhim khu kev hnav tsis kam thiab siab - kub oxidation kuj.

 

3.Advanced Protection Technologies

Inhibiting nruab nrab wetting, muab corrosion thiab fouling kuj nyob rau hauv marine ib puag ncig, zoo heev extending kev pab cuam lub neej.

Tsis siv neeg kho cov yeeb yaj kiab passivation, tsim nyog rau kev kaw, sib sib zog nqus- hiav txwv thiab lwm yam nyuaj- rau- khaws cov khoom siv.

Superior corrosion kuj rau cov tsoos coatings, haum rau siab - kub thiab muaj zog corrosion huab ib puag ncig.

 

 

1.Corrosive Medium Control

Tswj cov pa oxygen thiab halide ion cov ntsiab lus, khaws cov tshuaj chloride ion concentration<200ppm to prevent pitting and crevice corrosion.

Kho nruab nrab pH nqi thiab ntxiv corrosion inhibitors. Cov titanium ntshiab yog nruj me ntsis txwv tsis pub tiv tauj hydrofluoric acid, concentrated hydrochloric acid thiab siab -kub sulfuric acid.

Lim cov khoom impurities kom txo tau yaig thiab hnav.

 

2.Kub thiab Load Control

nruj me ntsis tswj qhov kub thiab txias nyob rau hauv ntshiab titanium, Ti-6Al-4V, titanium aluminide alloy, kom tsis txhob ceev corrosion thiab creep vim kub dhau.

Txo cov kev hloov pauv, cuam tshuam thiab thermal cycling; nruab kev vibration-damping thiab buffer qauv yog tias tsim nyog.

 

3.Kev Tiv Thaiv Hydrogen Embrittlement

nruj me ntsis tswj tsis tau thaum pickling thiab vuam kom txo hydrogen nkag mus.

Ntxiv cov tshuaj tshem tawm hydrogen mus rau qhov nruab nrab lossis txais yuav palladium txheej los txo hydrogen adsorption.

Ua kev kho dehydrogenation tsis tu ncua los ntawm lub tshuab nqus tsev.

 

Yog tias koj muaj kev yuav khoom rau titanium daim hlau, thov xa kuv cov lus nug.. Email:Sam.Rui@bjrh-titanium.com