INFLUENCE OF GRAPHITE FORM ON HYDRAULIC SOUNDNESS OF CAST IRON.

被引：0
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作者：
Chernyshova, N.V.
Ezhov, G.I.
Boiko, G.G.
机构：
来源：
Soviet Castings Technology (English Translation of Liteinoe Proizvodstvo) | 1986年 / 02期
关键词：
CASTINGS - Physical Properties - STEEL TESTING - Fracture;
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摘要：
Comparative hydraulic soundness tests have been carried out on iron castings with different graphite forms, produced by the in-mold treatment process using 0. 2-1% of master alloy ZhKMK-4R, which contains 8. 3% Mg, 9. 2% Ca, 6. 7% REM, 47% Si, and remainder Fe. The original steelmaking pig iron contained 4. 13% C, 1. 05% Si, 1. 04% Mn, 0. 087% P, 0. 031% S, and melts were made in an acid-lined induction furnace of capacity 60 kg. The bath was heated to 1500 degree C and the molds were poured at 1450 degree C. The cylindrical castings - 30-mm diameter test bars of length 200 mm - were made in baked clay-bonded sand molds. The nodular graphite form ensures maximum hydraulic soundness.
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页码：31 / 32
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