๊ตญ๊ฐ€ : ์ผ๋ณธ

๋ฐœ๋ช…์˜ ๋ช…์นญ : ๊ณ ์†๋„๊ฐ• ๊ฐ€๊ณต ๊ณต์ • ํ๊ธฐ๋ฌผ๋กœ๋ถ€ํ„ฐ ๊ณ ์†๋„๊ฐ• ๋ชจํ•ฉ๊ธˆ์„ ์ œ์กฐํ•˜๋Š” ์žฌํ™œ์šฉ ๋ฐฉ๋ฒ•

(RECYCLING METHOD FOR MANUFACTURING HIGH SPEED STEEL MASTER ALLOY FROM HIGH SPEED STEEL PROCESSING PROCESS WAST)

(ใƒใ‚คใ‚นๅŠ ๅทฅๅทฅ็จ‹ใฎๅปƒๆฃ„็‰ฉใ‹ใ‚‰ใƒใ‚คใ‚นๆฏๅˆ้‡‘ใ‚’่ฃฝ้€ ใ™ใ‚‹ใƒชใ‚ตใ‚คใ‚ฏใƒซๆ–นๆณ•)

์ถœ์›๋ฒˆํ˜ธ : 2023-509368

์ถœ์›์ผ์ž : 2023-02-07

๋“ฑ๋ก๋ฒˆํ˜ธ : 7417341

๋“ฑ๋ก์ผ์ž : 2024-01-03

์š”์•ฝ

A method for recycling HSS processing process waste comprises: a pre-treatment step of pre-treating the HSS processing process waste; a primary melting step of forming a primary melt by primarily melting, at a temperature of 1500-2500 degrees Celsius (ยฐC), the pre-treated HSS processing process waste and at least one from among ferromolybdenum, ferrotungsten, and ferrocobalt; and a manufacturing step of manufacturing a HSS master alloy by performing ingot casting of the primary melt. The pre-treatment step comprises: a separation step of separating the HSS processing process waste according to the composition; and a mixing step of forming a mixture by mixing the separated HSS processing process waste and an oxide including at least one from among K2O, CaO, MgO, SiO2, Al2O3, and Fe2O3, wherein the melting point of the mixture is 800ยฐC to 1700ยฐC.

๏ผจ๏ผณ๏ผณๆฏๅˆ้‡‘ใ‚’่ฃฝ้€ ใ™ใ‚‹ใƒชใ‚ตใ‚คใ‚ฏใƒซๆ–นๆณ•ใฏใ€๏ผจ๏ผณ๏ผณๅŠ ๅทฅๅทฅ็จ‹ใฎๅปƒๆฃ„็‰ฉใ‚’ๅ‰ๅ‡ฆ็†ใ™ใ‚‹ๅ‰ๅ‡ฆ็†ๆฎต้šŽใ€ใƒ•ใ‚งใƒญใƒขใƒชใƒ–ใƒ‡ใƒณใ€ใƒ•ใ‚งใƒญใ‚ฟใƒณใ‚ฐใ‚นใƒ†ใƒณใ€ๅŠใณใƒ•ใ‚งใƒญใ‚ณใƒใƒซใƒˆใฎไธญใงๅฐ‘ใชใใจใ‚‚ไธ€ใคๅŠใณๅ‰่จ˜ๅ‰ๅ‡ฆ็†ใ•ใ‚ŒใŸ๏ผจ๏ผณ๏ผณๅŠ ๅทฅๅทฅ็จ‹ใฎๅปƒๆฃ„็‰ฉใ‚’ใ€๏ผ‘๏ผ•๏ผ๏ผ๏ฝž๏ผ’๏ผ•๏ผ๏ผๆ”ๆฐๆธฉๅบฆ๏ผˆโ„ƒ๏ผ‰ใง๏ผ‘ๆฌกๆบถ่žใ—ใฆ๏ผ‘ๆฌกๆบถ่ž็‰ฉใ‚’ๅฝขๆˆใ™ใ‚‹๏ผ‘ๆฌกๆบถ่žๆฎต้šŽใ€ๅŠใณๅ‰่จ˜๏ผ‘ๆฌกๆบถ่ž็‰ฉใ‚’ใ‚คใƒณใ‚ดใƒƒใƒˆ๏ผˆ๏ฝ‰๏ฝŽ๏ฝ‡๏ฝ๏ฝ”๏ผ‰้‹ณ้€ ใ—ใฆ๏ผจ๏ผณ๏ผณๆฏๅˆ้‡‘ใ‚’่ฃฝ้€ ใ™ใ‚‹่ฃฝ้€ ๆฎต้šŽใ‚’ๅซใฟใ€ๅ‰่จ˜ๅ‰ๅ‡ฆ็†ๆฎต้šŽใฏใ€ๅ‰่จ˜๏ผจ๏ผณ๏ผณๅŠ ๅทฅๅทฅ็จ‹ใฎๅปƒๆฃ„็‰ฉใ‚’็ต„ๆˆใซใ‚ˆใฃใฆๅˆ†้›ขใ™ใ‚‹ๅˆ†้›ขๆฎต้šŽใ€ๅŠใณ๏ผซ๏ผ’๏ผฏใ€๏ผฃ๏ฝ๏ผฏใ€๏ผญ๏ฝ‡๏ผฏใ€๏ผณ๏ฝ‰๏ผฏ๏ผ’ใ€๏ผก๏ฝŒ๏ผ’๏ผฏ๏ผ“ใ€ๅŠใณ๏ผฆ๏ฝ…๏ผ’๏ผฏ๏ผ“ใฎใ†ใกๅฐ‘ใชใใจใ‚‚ไธ€ใคใ‚’ๅซใ‚€้…ธๅŒ–็‰ฉใจใ€ๅ‰่จ˜ๅˆ†้›ขใ—ใŸ๏ผจ๏ผณ๏ผณๅŠ ๅทฅๅทฅ็จ‹ใฎๅปƒๆฃ„็‰ฉใจใ‚’ๆททๅˆใ—ใฆๆททๅˆ็‰ฉใ‚’ๅฝขๆˆใ—ใ€ๅ‰่จ˜ๆททๅˆ็‰ฉใฎ่ž็‚นใฏใ€๏ผ˜๏ผ๏ผ๏ฝž๏ผ‘๏ผ—๏ผ๏ผโ„ƒใงใ‚ใ‚‹ๆททๅˆๆฎต้šŽใ‚’ๅซใ‚€ใ€‚

HSS ๊ฐ€๊ณต ๊ณต์ • ํ๊ธฐ๋ฌผ์˜ ์žฌํ™œ์šฉ ๋ฐฉ๋ฒ•์€ HSS ๊ฐ€๊ณต ๊ณต์ • ํ๊ธฐ๋ฌผ์„ ์ „์ฒ˜๋ฆฌํ•˜๋Š” ์ „์ฒ˜๋ฆฌ ๋‹จ๊ณ„, ํŽ˜๋กœ ๋ชฐ๋ฆฌ๋ธŒ๋ด, ํŽ˜๋กœ ํ……์Šคํ…, ๋ฐ ํŽ˜๋กœ ์ฝ”๋ฐœํŠธ ์ค‘ ์ ์–ด๋„ ํ•˜๋‚˜ ๋ฐ ์ƒ๊ธฐ ์ „์ฒ˜๋ฆฌ๋œ HSS ๊ฐ€๊ณต ๊ณต์ • ํ๊ธฐ๋ฌผ์„ 1500 ๋‚ด์ง€ 2500 ์„ญ์”จ ์˜จ๋„(โ„ƒ)์—์„œ 1์ฐจ ์šฉ์œตํ•˜์—ฌ 1์ฐจ ์šฉ์œต๋ฌผ์„ ํ˜•์„ฑํ•˜๋Š” 1์ฐจ ์šฉ์œต ๋‹จ๊ณ„, ๋ฐ ์ƒ๊ธฐ 1์ฐจ ์šฉ์œต๋ฌผ์„ ์ž‰๊ณณ(ingot) ์ฃผ์กฐํ•˜์—ฌ HSS ๋ชจํ•ฉ๊ธˆ์„ ์ œ์กฐํ•˜๋Š” ์ œ์กฐ ๋‹จ๊ณ„๋ฅผ ํฌํ•จํ•˜๊ณ , ์ƒ๊ธฐ ์ „์ฒ˜๋ฆฌ ๋‹จ๊ณ„๋Š” ์ƒ๊ธฐ HSS ๊ฐ€๊ณต ๊ณต์ • ํ๊ธฐ๋ฌผ์„ ์กฐ์„ฑ์— ๋”ฐ๋ผ ๋ถ„๋ฆฌํ•˜๋Š” ๋ถ„๋ฆฌ ๋‹จ๊ณ„ ๋ฐ K2O, CaO, MgO, SiO2, Al2O3, ๋ฐ Fe2O3 ์ค‘ ์ ์–ด๋„ ํ•˜๋‚˜๋ฅผ ํฌํ•จํ•˜๋Š” ์‚ฐํ™”๋ฌผ ๋ฐ ์ƒ๊ธฐ ๋ถ„๋ฆฌํ•œ HSS ๊ฐ€๊ณต ๊ณต์ • ํ๊ธฐ๋ฌผ์„ ํ˜ผํ•ฉํ•˜์—ฌ ํ˜ผํ•ฉ๋ฌผ์„ ํ˜•์„ฑํ•˜๊ณ , ์ƒ๊ธฐ ํ˜ผํ•ฉ๋ฌผ์˜ ์œต์ ์€ 800 ๋‚ด์ง€ 1700 โ„ƒ์ธ ํ˜ผํ•ฉ ๋‹จ๊ณ„๋ฅผ ํฌํ•จํ•œ๋‹ค.

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