Method for manufacturing bottom shrunk type steel ingot mold
A manufacturing method and technology of steel ingot moulds, which are applied in the field of metallurgical foundry industry, can solve problems such as easy cracks and peeling, waste of process materials, etc., and achieve the effect of convenient operation and ideal practical effect
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[0015] The present invention will be described in detail below in conjunction with the drawings and embodiments.
[0016] See figure 1 with figure 2 , The present invention provides a bottom-retracting steel ingot mold and a manufacturing method thereof. The bottom of the steel ingot mold 1 is closed, and the inner wall at the bottom of the steel ingot mold 2 is provided with two different reduced diameters and heights, which are close to the reduced diameter of the outer opening. It is a small diameter, the inner side of the small diameter is a reduced large diameter, and the height H of the large diameter is greater than the height h of the small diameter to prevent the closing part from being melted too quickly.
[0017] Such as figure 1 As shown in the figure, a smooth transition is formed between the height H of the large diameter and the height h of the small diameter of the closing inner wall of the bottom 2 of the steel ingot mold.
[0018] In the case of reducing the diame...
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