Melting device of 32Cr3Mo1V steel casting roller sleeve and process of producing steel casting roller sleeve through melting device

Abstract

The invention discloses a melting device of a 32Cr3Mo1V steel casting roller sleeve and a process of producing the steel casting roller sleeve through the melting device. By means of the proper temperature at the last phase of melting and the primary phase of oxidizing, high-alkalinity, high-oxidizability and good-flowability slag is created; metal is supplemented between a first electrode and a second electrode through a step-by-step power-reduction and current-reduction and on-off-combined mode, so the minimum shrinkage depth is ensured, and the yield of an electroslag ingot is increased; bymeans of normalizing, the aims of uniform formation and refined grain are realized; since hydrogen is low in solubility, high in diffusing coefficient and good in dehydrogenating effect at the temperature and a forging is subjected to heat preserving and then water quenching and oil cooling, quenching cracks are effectively avoided, the aims of performance stabilizing and stress eliminating are realized, and the purposes of realizing the minimum shrinkage depth and minimum size, increasing the yield of the electroslag ingot, reducing the quenching cracks and improving the poor stability are realized since the performance of the high-speed steel casting roller is not only related to the matrix structure of the roller and carbides, but also has an important effect in the production process.

Description

technical field [0001] The invention relates to the technical field of wear-resistant plate processing technology, in particular to a melting device for a 32Cr3Mo1V steel cast roll sleeve and a production process for the steel cast roll sleeve. Background technique [0002] At present, the process parameters for manufacturing high-speed steel are mainly determined by experience, the process stability is poor, and the roll performance fluctuates greatly. By establishing an artificial neural network model to predict the casting quality of high-speed steel rolls, it can be used to guide production and stabilize the quality of high-speed steel rolls. It is very important to maintain a uniform, continuous and smooth oxide film on the surface of the high-speed steel roll during use. The oxide film is destroyed or cannot form a uniform, continuous and smooth oxide film, which will affect the wear of the roll surface and the quality of the rolled steel plate. The performance of hi...

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Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a melting device for a 32Cr3Mo1V steel casting roll sleeve and its production process for a steel casting roll sleeve, which solves the problem that the performance of the high-speed steel roll is not only related to its matrix structure and carbides, but also during the production process. It plays a pivotal role, in order to achieve the minimum shrinkage cavity depth and volume, improve the yield of electroslag ingots, reduce quenching cracking, and poor stability

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