Alloy modificator for preparing metal semi-solid slurry

Abstract

The invention discloses an alloy modificator for preparing metal semi-solid slurry, an alloy modificator preparation method and an alloy modificator use method. After the alloy modificator is added into the molten semi-solid slurry, the solid-to-liquid ratio of the semi-solid slurry and the content of globular crystals can be greatly increased, the preparation efficiency and the quality of the semi-solid slurry can be improved, and the quality of final die-cast products is ensured. The preparation method is simple and easy to operate, and the alloy modificator can be prepared on a large scale in simple equipment. The alloy modificator has excellent use effect and popularization significance.

Description

[0001] technical field [0002] The invention relates to an alloy modifier and a preparation method thereof, in particular to an alloy modifier for preparing metal semi-solid slurry, a preparation method and a use method of the alloy modifier. Background technique [0003] The semi-solid die-casting technology developed in the early 1970s brought profound changes to the traditional die-casting method. Scholars at home and abroad have proposed many semi-solid metal slurry preparation methods, such as mechanical stirring method, electromagnetic stirring method, controlled solidification method, strain activation process, powder metallurgy method and other methods. At present, many semi-solid metal slurrying methods have the following disadvantages: the solid-liquid ratio of semi-solid slurry is difficult to control, and the proportion of spherical grain structure of the prepared semi-solid slurry is small; semi-solid castings for die-casting are prone to defects such as col...

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Problems solved by technology

At present, many semi-solid metal slurrying methods have the following disadvantages: the solid-liquid ratio of semi-solid slurry is difficult to control, and the proportion of spherical grain structure of the prepared semi-solid slurry is small; semi-solid castings for die-casting are prone to defects such as cold shut and insufficient pouring, especially It is the low spheroidized aluminum of the casting structure, which affects the molding of the casting

These deficiencies make the product quality of semi-solid die casting process poor

[0004] At present, the research on the semi-solid pulping process in the industry focuses on the equipment and methods for the preparation of semi-solid pulp. There are few studies on the addition of alloy modifiers to improve the quality and product performance of semi-solid pulp. Moreover, the existing alloy modifiers are all Can not effectively increase the solid-liquid ratio and spherical crystal content of semi-solid slurry

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