Fanmetal yog tus xa khoom ntawm cov khoom lag luam hlau uas muaj nqis nrog ntau tshaj 20 xyoo ntawm kev paub. Peb tuaj yeem muab cov xov hlau nrog cov xov hlau, platinum cov ntaub ntawv lossis cov ntaub ntawv pob hluav taws xob ua los ntawm palladium-iridium alloy, Iridium alloy, khib nyiab-Rhodium alloy. Cov khoom lag luam zoo no tau raug xa tawm rau cov teb chaws txawv teb chaws xws li Tebchaws Meskas, Tebchaws Canada, Mexico, thiab tau txais kev qhuas los ntawm cov neeg siv khoom. Txawm hais tias platinum-iridium alloy thiab Iridium-Rhodium alloy yog ob qho tib si hlau, lawv tau hloov maj mam sib txawv ntawm cov yam ntxwv thiab kev siv.
1. Ua
Platinum-iridium alloy: kev ua kev ua tau zoo nthuav tawm nrog kev nce ntawm iRidium cov ntsiab lus, thiab nws yuav tsum tau ua tiav los ntawm kev kub kub ua ntej nws tuaj yeem ua kom txias rau hauv cov ntaub ntawv.
Iridium-Rhodium Alloy: Nws yog feem ntau Melted los ntawm kev tiv thaiv argon nyob rau hauv ib tug high fais fab rolled thiab ua kom txias zoo.
1. Tshuaj lom neeg sib xyaw
Platinum-iridium alloy: nws yog binary alloy raws li platinum, feem ntau yog ntxiv iridium ntsiab. Cov uas muaj ntau yam muaj xws li Ptir10, Ptir17.5, Ptir25, Ptir30, thiab lwm yam.
Iridium-Rhodium Alloy: Nws yog ib qho binary alloy muaj los ntawm Iridium thiab rhodium. Muaj alloys xws li irh10, irh40, irrh50, thiab irrh70.
2. Lub zog lub cev
Ntws: lub ntom ntawm platinum-iridium alloy feem ntau ntawm cov ntshiab platinum (21.45 g / cm3) thiab ntshiab iridium (22.56 g / cm3); Qhov ceev ntawm iridium-rhodium alloy yog li 22 g / cm3.
Melting taw tes: lub ntsiab lus melting ntawm platinum-iridium alloy feem ntau yog nruab nrab ntawm platinum 1772 degree thiab melting point ntawm iridium 2446 degree; Lub ntsiab lus melting ntawm iridium-rhodium alloy yog siab li txog 2450 degree.
3. Tshuaj lom neeg
Corrosion Kuj: ntawm platinum alloys, alloys muaj ntau tshaj 30% Iridium tsis xeb los ntawm boiling aqua regia; Iridium-Rhodium Alloy muaj cov tsis muaj zog thiab tuaj yeem ua rau muaj nyob rau hauv ib puag ncig hnyav xws li kub thiab muaj zog thiab muaj zog.
Oxidation tsis kam: Platinum alloy muaj qee qhov kub oxidation tiv thaiv iridium alloy muaj zog dua li iridium ntshiab. Thaum 2000 degree, irrh60 poob txog 5% ntawm nws qhov hnyav los ntawm oxidation, thaum ntshiab iridium poob ntau npaum li 27%.
4. Daim ntawv thov teb
Platinum-iridium alloy: nws yog cov khoom siv hluav taws xob hauv tshuab hluav taws xob siv rau cov dav hlau cav, thiab cov neeg sib tw hluav taws xob, thiab lwm yam .; Nws kuj tseem siv tau los tsim cov khoom siv kho mob xws li cov kws kho mob thiab kev cog hniav, cov khoom tseem ceeb hauv cov tshuab hluav taws xob lossis tshuaj lom neeg, thiab lwm yam.
Iridium-Rhodium Alloy: feem ntau yog siv raws li high-olidation anti-oxidation thermocoidles nrog kev ua haujlwm kub ntawm ntau tshaj 2000 degree. Nws tseem tuaj yeem tsim cov kev pab cuam hluav taws xob, cov hluav taws xob, cov khoom siv hluav taws xob, cov hloov hluav taws xob, cov hloov hluav taws xob hauv petrochemicals lossis tsheb tso pa tawm, thiab lwm yam.
