Heat treatment with utilization of residual casting heat makes it possible to shorten the heat-treatment time, reduce the cooling time of the castings in the molds, improve the operating characteristics of castings, and combine melting, casting, and heat treatment in one automatic production line.
High homogeneity of austenite in steel 110G13L is ensured by the following treatment: Knockout at 1100–1180°, transfer to a furnace heated to 1050–1080°, holding 3–5 h, and water quenching. The castings should not be allowed to cool below Arm on the Fe−Mn−C phase diagram during knockout, cleaning, and transfer to the furnace.
The introduction of heat treatment of steel 110G13L utilizing residual casting heat in the foundry of the Kostroma Strommashina Plant is expected to produce savings of ∼80 rubles per ton of castings.
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L. I. Parfenov, G. A. Sorokin, and A. É. Matyuk, "Effect of the shape and location of carbides on the wear resistance and mechanical properties of steel G13L," Liteinoe Proizvod., No. 8, 28 (1968).
Karavaevo Kostroma Agricultural Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 1, pp. 16–21, January, 1980.
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Shikolaev, V.P. Heat treatment of steel 110G13L with utilization of residual casting heat. Met Sci Heat Treat 22, 19–25 (1980). https://doi.org/10.1007/BF00699466
- Heat Treatment
- Phase Diagram