dung d ch ị r n c a nhi u nguyên t kim ắ � ề ố lo i ho c gi a nguyên t kim lo i

Dung d ch ị r n c a nhi u nguyên t kim ắ ? ề

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dung d ch r n c a nhi u nguyên t kim lo i ho c gi a nguyên t kim lo i v i nguyên t phi kim. + H p kim mang tính kim lo i (d n nhi t cao, d n đi n, d o, d bi n d ng, có ánh kim...). ế
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Gang Thép Thành ph n Gang là h p kim c a s t và cacbon ( C t 2-5% ) và m t s ng/t khác Si, Mn, S ... Thép là h p kim c a s t và cacbon ( C < 2%) và m t s ng/t khác Si, Mn, S ...... Tính ch t Có tính c ng, giòn Có tính đàn h i, c ng ít b ăn mòn - Phân lo i - Gang tr ng - Gang xám - Gang c u - Gang d o e - Thép Cacbon (C 2,1%) Thép Silic - Thép không g – Inox (h p kim hóa v i Cr i 10%) - Thép h p kim th p (h p kim hóa v i W, Mo) - Thép d ng c (W, Co...) u u - ng d ng + Gang tr ng: dùng đ luy n thép + Gang xám : dùng đ ch t o máy móc ế ạ thi t b ế đ ch t o chi ti t máy v t d ng, d ng c , ế ế u u u v t li u xây d ng - nguyên li u Qu ng s t( Fe 2 O 3 ; Fe 3 O 4 ) , than c c, không khí giàu oxi, CaCO 3 . gang tr ng, s t ph li u, không khí ế nóng. Quá trình s n xu t gang trong lò cao: C + O 2 CO 2 CO 2 + C 2CO 3CO + Fe 2 O 3 2Fe + 3CO 2 s n xu t: FeO + C Fe + CO S n ph m thu đ c là thép ượ
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Ch o gang
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