Tom qab cov nplej refining master alloy yog ntxiv rau cov yaj, ntau cov heterogeneous nucleation cores raug tso tawm, uas tuaj yeem siv los ua cov nucleation sab nraud thaum lub sij hawm yaj solidification, cuam tshuam cov txheej txheem nucleation ntawm yaj crystallization, thiab yog li ua lub luag haujlwm ntawm refining alloy. nplej. Lub ntsiab aluminium alloy grain refining master alloy khoom nyob rau hauv tsev thiab txawv teb chaws yog Al-Ti, Al-Ti-B, al-ti-b-re, Al-Ti-C, al-ti-bc, thiab lwm yam. Copper alloy grain refining master alloy khoom feem ntau suav nrog cu-b, Cu Fe thiab Cu Zr. Cu-b master alloy yuav siv tau rau cov nplej refining ntawm tooj dag, Cu Fe master alloy yuav siv tau rau grain refining ntawm txhuas bronze thiab Cu Zr master alloy yuav siv tau rau grain refining ntawm tooj dag.
Al-Ti thiab Al-Ti-B Master alloys muaj tus nqi siab ua haujlwm hauv cov nplej ua kom zoo ntawm aluminium alloys. Lawv tau siv dav hauv kev lag luam. Vim yog biphasic nucleation ntawm TiAl3 thiab TiB2, cov nyhuv refining ntawm Al-Ti-B Master Alloy zoo dua li ntawm Al Ti master alloy. Txawm li cas los xij, TiB2 hais hauv Al-Ti-B Master Alloy muaj kev sib sau ua ke. Nyob rau tib lub sijhawm, thaum aluminium alloy muaj cov ntsiab lus alloying xws li Zr, Cr, V thiab Mn, nws yuav txeeb B hauv TiB2 hais thiab tsim cov boride sib xws, uas yuav "tshuaj lom" TiB2 hais, kom tsis muaj zog lossis poob cov nyhuv. ntawm refiner. Al-ti-b-re, Al-Ti-C thiab al-ti-bc yog cov tshiab nplej refiners, uas kov yeej (los yog ib nrab kov yeej) cov shortcomings saum toj no ntawm Al-Ti-B Master Alloy. Al-ti-b-re master alloy yog qhov sib ntxiv ntawm qhov sib xyaw tsis tshua muaj ntiaj teb raws li Al-Ti-B Master Alloy. Tsis tshua muaj lub ntiaj teb yog lub ntsiab active nto, uas yuav ua rau kom lub wetting lub kaum sab xis ntawm txhuas yaj thiab altire, TiAl thiab TiB2 hais, txhim kho cov khoom sib kis, thiab zoo tsis txhob particle aggregation los yog nag lossis daus. Txawm li cas los xij, kev sib cais loj ntawm TiB2 thiab lwm cov khoom tuaj yeem tsuas yog txo qis rau qee qhov, yog li tag nrho cov txheej txheem npaj tseem xav tau kev sib zog ua kom muaj zog. Al-Ti-C grain refiner overcomes lub shortcomings ntawm Al-Ti-B mus rau ib qho twg. Nws cov nucleation tseem ceeb TIC muaj qhov sib xyaw me dua li TiB2 thiab tiv thaiv kab mob Zr, Cr, V, Mn thiab lwm yam. Txawm li cas los xij, hom kev lag luam ntxiv ntawm C lub ntsiab lus, kev ruaj ntseg ntawm kev ua kom zoo dua qub thiab kev tsim khoom lag luam tseem yuav tsum tau kawm ntxiv.
Hunan Oriental Scandium Co., Ltd. yog tsim nyob rau xyoo 2011. Yuav kom ua tiav cov neeg siv khoom xav tau, peb muab cov khoom lag luam zoo thiab kev pabcuam customized los ntawm cov khoom siv raw khoom rau cov khoom siv scandium. Tsis tas li ntawd, kev tsim kho tshiab thiab kev tiv thaiv ib puag ncig yog peb tus kheej nruj.
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