High aluminum alloy furnace roller and preparation process thereof

Abstract

The invention relates to a high aluminum alloy furnace roller and a preparation process thereof. The preparation process comprises the following steps: (1) coating spraying: firstly, baking a mold cylinder, and uniformly heating the mold cylinder to 220 DEG C, wherein the rotating speed of the mold cylinder is 400 revolutions per minute during spraying, the rotating speed of a spraying trolley speed regulating motor is 500 revolutions per minute, and the thickness of a coating to be 0.8-1.0 mm, checking that the coating does not have defects after spraying, and controlling pits on the surface of the coating to be normal; (2) smelting: firstly, uniformly putting carbon powder into the bottom of a furnace, then putting pure iron, chromium metal and a nickel plate, electrifying for smelting, then heating to melting, raising the temperature to 1620 DEG C until the color of molten steel is white, performing slagging by using a common slagging constituent and removing slag once, adding tungsten metal into the middle of the furnace, raising the temperature to 1680 DEG C until the color of the molten steel is white, and performing stirring for 10 minutes at high power. The high aluminum alloy furnace roller has the beneficial effects that through the smelting and casting process, the heat resistance of the furnace roller during operation in a high-temperature furnace is improved, the service life is prolonged, the safety performance is improved, and the replacement cost of the furnace roller is reduced.

Description

technical field [0001] The invention discloses a high aluminum alloy furnace roll and a preparation process thereof, belonging to the technical field of alloy furnace roll preparation. Background technique [0002] The furnace roll is an important part in various heat treatment furnaces. When the furnace roll is running, it needs to rotate under high temperature conditions, so the heat resistance of the furnace roll is very important. [0003] Under the existing technology, when the furnace roll is prepared, it is mostly made of steel. When it is operated in a high-temperature furnace, its heat resistance is not good, its safety performance is difficult to be guaranteed, its service life is short, and its replacement is very costly. Contents of the invention [0004] The purpose of the present invention is to provide a high aluminum alloy furnace roll and its preparation process. [0005] In order to solve the problems of the technologies described above, the present inve...

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Problems solved by technology

[0003] Under the existing technology, when the furnace roll is prepared, it is mostly made of steel. When it is operated in a high-temperature furnace, its heat resistance is not good, its safety performance is difficult to be guaranteed, its service life is short, and its replacement is very costly.

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