Orientation casting method for aluminum-nickel-cobalt integral magnetic steel

Abstract

The invention discloses an orientation casting method for aluminum-nickel-cobalt integral magnetic steel. The orientation casting method comprises the following steps that S1, raw materials are obtained, specifically, materials with the grade one to two lower than the material grade are selected as the raw materials according to the material grade; S2, a mold is designed; and S3, molding is conducted by using a sand mold through a double-faced orientation pouring method, specifically, S31, quartz sand is poured into the mold, and compacted and pressed; S32, in the magnetization direction, iron sheets with the thickness being 8-12 mm and the length and the width being 5-8 mm larger than those of mold cores are placed at the two ends of each mold core in the mold; and S33, the mold is removed, the sand mold is dried in a drying oven at the temperature of 200-220 DEG C for 120 + / -20 min, and the sand mold for the double-face orientation pouring method is obtained. According to the orientation casting method for the aluminum-nickel-cobalt integral magnetic steel, a double-sided semi-oriented pouring method is adopted, that is, one iron sheet is placed along the magnetization direction of the product during sand mold molding, after the product is poured, a column crystal which is the same as that of a full-oriented pouring method is obtained, and meanwhile, compared with the full-oriented pouring method, cooling water and heat preservation are not needed, so that consumables are saved.

Description

technical field [0001] The invention relates to the technical field of AlNiCo magnetic steel casting, in particular to an AlNiCo integral magnetic steel orientation casting method. Background technique [0002] Casting AlNiCo to obtain products with properties exceeding LNG52 or above grades must adopt the casting method commonly known as orientation technology to obtain products with a columnar crystal structure, and then the corresponding product properties can be achieved after heat treatment. [0003] In the prior art, omnidirectional casting such as figure 1 As shown, the pouring conditions include heating equipment, product cooling equipment, thermal insulation materials, mold materials, mold equipment and tooling, the cost is relatively high, consumables are used more, and the cooling water circulation cannot be stopped. Therefore, the present invention provides an AlNiCo magnetic The double-sided semi-oriented casting method of ring casting can obtain the same produ...

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Problems solved by technology

[0003] In the prior art, omnidirectional casting such as figure 1 As shown, the pouring conditions include heating equipment, product cooling equipment, thermal insulation materials, mold materials, mold equipment and tooling, the cost is relatively high, consumables are used more, and the cooling water circulation cannot be stopped. Therefore, the present invention provides an AlNiCo magnetic The double-sided semi-oriented casting method of ring casting, while obtaining the same product performance as the full-oriented casting method, does not require cooling water and heat preservation, saving consumables

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