Muaj ntau ntau hom av nkos lub tog raj kheej liner: ib leeg hlau lub tog raj kheej liner, bimetallic lub tog raj kheej liner, ceramic cylinder liner, thiab npib tsib xee alloy lub tog raj kheej liner.
Ib leeg hlau kheej kheej liner
Lub tog raj kheej-hlau liner yog carburized thiab high-frequency kho, thiab nws hardness tuaj yeem ncav cuag HRC58-62. Nws muaj cov yam ntxwv ntawm siab smoothness, hnav tsis kam, corrosion kuj thiab ntev kev pab cuam lub neej. Nws yog haum rau siv nyob rau hauv me me thiab corrosive av nkos.
Bimetallic lub tog raj kheej liner
Bimetallic lub tog raj kheej liner yog siv dav tshaj plaws thiab ib qho ntawm cov khoom siv hydraulic kawg fittings rau cov av nkos. Lub bimetallic lub tog raj kheej liner sib xyaw ua ke qhov zoo ntawm lub tsho kub forged high-wear sab nrauv thiab cov chromium hnav-tiv taus thiab tiv thaiv corrosion sab hauv lub tsho. Lub tsho sab nrauv yog tsim los ntawm kub nias ntawm high-quality carbon steel. Lub zog tensile ntawm 900, 000 psi, lub hardness ntawm lub tes tsho sab hauv tom qab kev kho cua sov mus txog saum HRC62, thiab nws tuaj yeem tiv taus cov av nkos siab ntawm 7, 000 psi.
Ceramic cylinder liner
Nrog rau kev nthuav dav ntxiv ntawm kev siv nyiaj txiag thoob ntiaj teb cov peev txheej roj thiab roj los ntawm tib neeg, thiab nws tau dhau los zuj zus, ntau tus hlau lub tog raj kheej liner tau hloov pauv ntau zaus thiab nws nyuaj rau ua kom tau raws li cov kev xav tau ntawm kev kub siab thiab hnav. drilling rigs, thaum lub tog raj kheej ceramic liner yog ua los ntawm zirconia, oxidized Zirconium toughened alumina (ZTA) thiab high-performance A-99 alumina ceramics yog peb cov khoom loj. Cov ntaub ntawv raw yog ua los ntawm high-purity nano-zirconia thiab alumina hmoov, uas yog tsim los ntawm ib-lub sij hawm siab txias nias txheej txheem, sintered ntawm kub kub, sib sau ua ke, thiab thaum kawg hauv av thiab polished nrog high precision. Fracture toughness thiab acid thiab alkali corrosion kuj.
Nickel puag alloy lub tog raj kheej liner
Nrog rau kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis tsis tu ncua, nickel-based alloy lub tog raj kheej liner tau tsim los ntawm cov ntaub ntawv tshiab. Cov txheej txheem yog txheej txheej cov khoom siv hlau rau ntawm phab ntsa sab hauv ntawm lub tog raj kheej liner thiab siv lub tshuab nqus tsev sintering los tsim ib txheej 1.5mm alloy sintered. sintered txheej Cov khoom yog xaiv los ntawm high-kev ua tau zoo tsis tshua muaj lub ntiaj teb npib tsib xee-raws li alloy hmoov thiab ntxiv nrog ib tug micron-theem cemented carbide cov ntaub ntawv, thiaj li hais tias lub micron-theem siab hnav-resistant hard ntsiab lus yog tusyees faib nyob rau hauv lub sintered txheej, uas. zoo txhim kho tag nrho cov hnav tsis kam ntawm sintered txheej. Nyob rau tib lub sijhawm, vim lub microstructure ntawm alloy, qhov tshwm sim ntawm cov ntaub so ntswg spalling yuav tsis tshwm sim. Vim tias cov hmoov ua ib txheej zoo alloy sintered, lub zog sib txuas yog qhov zoo, thiab Rockwell hardness ntawm sintered txheej mus txog HRC: 60-64.
Piv nrog rau cov ntaub ntawv bimetallic, kev ua haujlwm siab hnav-tiv taus thiab corrosion-resistant tsawg lub ntiaj teb alloy hmoov yog raws li cov nickel raws li matrix. NiB, Cr7C3, Cr23C6 thiab lwm yam zoo, dispersed nyuaj me ntsis yog tsim nyob rau hauv lub matrix, uas zoo txhim kho lub kub kub liab hardness thiab hnav tsis kam thiab corrosion kuj ntawm cov alloy, thiab muaj kev kawm zoo heev. Vim tias cov nyhuv ntawm Yb, Mn, Cu thiab lwm yam khoom, cov nplej refinement, lis ciam teb purification, hnav tsis kam ntawm cov alloy tau zoo heev, thiab thermal shock kuj thiab tawg kuj tau zoo tuaj. Nyob rau tib lub sijhawm, cov khoom siv siab hnav tsis kam alloy kuj tseem ua rau cov txheej txheem siv Lub neej kev pabcuam yog ntau tshaj 2000 teev, thiab qhov siab tshaj plaws yog li 4000 teev, uas yog 5-10 npaug ntawm cov hlau kheej kheej liner thiab piv rau ceramic cylinder liner. Hnav tsis kam, kub tsis kam, siab zog, siab hardness, tsis yooj yim rau tawg, tus nqi yog deb tshaj li ntawm cov ceramic cylinder liner, tus yuam sij yog los txhim kho cov drilling kev vam meej, txo tus nqi ntawm kev thauj mus los drilling, txij nkawm, kev ua haujlwm, cia. thiab lwm yam.
