Large ingot solidification structure thermal simulation method and device based on high-throughput experiment

Abstract

The invention discloses a large ingot solidification structure thermal simulation method and device based on a high-throughput experiment. The method comprises the steps that the temperature gradientand the cooling rate of different areas in the large ingot solidification process reappear by changing the cooling condition, and then the distribution condition of solidification structures and solutes in the different areas of a large ingot is acquired. The device is provided with an outer furnace body and a furnace cover arranged on the top of the outer furnace body in a covering mode, the furnace cover is provided with a deflation valve used for achieving inflation or deflation, a plurality of independent melting chambers containing metal raw materials are arranged in the outer furnace body through heat preservation grooves, the outer furnace body is fixedly arranged on a rotating disc through two or more brackets, and the rotating disc is driven by a motor to rotate and connected witha fixing chassis through a rotating shaft located at the center of the bottom face. According to the large ingot solidification structure thermal simulation method and device based on the high-throughput experiment, the solidification process of hundreds of tons of the ingots reappears through the solidification experiment of dozens of kilograms of small ingots, and the research cost is greatly reduced. Meanwhile, thermal simulation experiments of nine simulation units can be simultaneously completed, the experiment efficiency is greatly improved, and basis and reference are provided for homogenization of large castings.

Description

technical field [0001] The invention relates to a thermal simulation technology for the growth process of metal solidification tissue. In particular, it relates to a thermal simulation method and device for large ingot solidification structure based on high-throughput experiments. Background technique [0002] Large castings and forgings are important components of nuclear power, thermal power and other energy equipment, and are widely used in aerospace, heavy machinery, metallurgy, chemical industry, shipbuilding, military and other industries. The manufacture of large castings and forgings is a systematic thermal processing project, which must go through multiple manufacturing processes such as smelting, pouring, solidification, repeated high-temperature forging, and heat treatment. In the production process of large castings and forgings, casting into ingots is one of the most important links. Its purpose is to obtain homogeneous blanks with uniform grain structure, low ...

AI Technical Summary

Problems solved by technology

The existing experimental methods and equipment cannot reproduce the solidification conditions inside large castings. Therefore, it is difficult to simulate the solidification structure of large castings.

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