sintered hlau hmoov porous khoom yog cov khoom ntxeem tau nrog cov qauv nruj uas yog tsim los ntawm kev sib sau thiab sintering ntawm qhov kub siab siv hlau los yog alloy hmoov ua raw khoom. Nws yog characterized los ntawm ib tug loj tus naj npawb ntawm kev cob cog rua los yog semi-txuas pores nyob rau hauv. Cov qauv pore yog tsim los ntawm stacking tsis tu ncua thiab tsis tu ncua hmoov hais. Qhov loj, kev faib tawm thiab qhov porosity ntawm qhov pores nyob ntawm qhov muaj pes tsawg leeg ntawm cov hmoov particle loj thiab cov txheej txheem npaj.
Vim tias muaj ntau cov pores sab hauv, cov khoom siv hlau ntxeem tau nthuav tawm ntau yam khoom zoo, xws li lub teeb yuag, thaj chaw loj tshwj xeeb, lub zog nqus tau zoo, tsis tshua muaj thermal conductivity (kaw-pore lub cev), kub hloov pauv thiab kub dissipation. muaj peev xwm (los ntawm lub cev), nqus tau zoo acoustic kev ua tau zoo (los ntawm-lub qhov lub cev), zoo permeability (los ntawm-qhov lub cev), zoo electromagnetic yoj nqus (los ntawm-lub cev), nplaim kuj, tshav kub thiab hluav taws tsis kam, thermal shock resistance , roj rhiab heev, rov tsim dua tshiab, kev ua haujlwm zoo, thiab lwm yam. Nws yog dav siv hauv kev pom, kev sib cais, kev tswj cov dej ntws, tus kheej lubricating bearings, distributors, nto combustion, theem hloov tshav kub, suab nqus, roj teeb electrodes thiab lwm yam.
Cov sintered hlau hmoov porous cov ntaub ntawv muaj xws li tooj liab, stainless hlau, hlau, npib tsib xee, titanium, tungsten, molybdenum, thiab refractory hlau tebchaw. Sintered hlau hmoov porous cov ntaub ntawv ntawm cov ntaub ntawv sib txawv yog haum rau txawv siv ib puag ncig.
Corrosion ib puag ncig haum rau sintered hlau hmoov porous cov ntaub ntawv
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Khoom siv |
Tso cai kub hauv huab cua |
Siv tau corrosive ib puag ncig |
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Stainless hlau |
<500 |
Nitric acid, 96% sulfuric acid, acetic acid, boric acid, nitrous acid, oxalic acid, alkali, hydrogen sulfide, acetylene, chav dej, dej hiav txwv, molten sodium kua ammonia, kua helium, kua hydrogen, phosphoric acid, 5% hydrochloric acid. , huab cua, hydrogen |
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Nickel |
<400 |
molten sodium, sodium hydroxide, gaseous hydrogen fluoride, qhuav hydrogen fluoride, cua, hydrogen |
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Titanium |
<300 |
Tsawg concentration (qis dua 3 feem pua) hydrochloric acid, tsawg concentration (qis dua 5 feem pua) sulfuric acid, nitric acid (fuming nitric acid yog txwv tsis pub), sodium hydroxide, dej hiav txwv, aqua regia, thiab hlau, tooj liab, mercury, chromium, nickel, manganese, sodium, calcium, magnesium, barium, zinc chloride tov |
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Nickel tooj liab alloy |
<400 |
Alkaline tov, sodium hydroxide, hydrogen fluoride, nruab nrab ntsev, dej hiav txwv, huab cua qhuav |
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