Quick cooling device for precision investment casting shell and punching method of quick cooling device
An investment precision casting and rapid cooling technology, which is applied in the direction of casting molding equipment, casting molds, and casting mold components, can solve the problems of slow cooling speed of castings, so as to increase the cooling speed, improve the pinhole situation of castings, and eliminate pinholes The effect of defects
Inactive Publication Date: 2019-02-15
GUIZHOU ANJI AVIATION PRECISION CASTING
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Problems solved by technology
At present, the cooling speed of ordinary aluminum alloy investment castings is very slow when they are solidified in the air.
Method used
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[0025] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.
[0026] like Figure 1-4 As shown, a rapid cooling device for investment casting mold shells includes an air storage box 2, and the air storage box 2 is provided with an air inlet pipe 3 and an air outlet 1; the air inlet pipe 3 is located on the side of the air storage box 2; The air outlets 1 are located on the front of the air storage box 2; the air outlets 1 include a hole A4, a hole B5 and a hole C6; the hole A4 is located in the hole B5; the hole B5 is located between the hole A4 and the hole C6.
[0027] The air outlets 1 are provided with four groups, all of which are respectively located in the middle of the four sides of the air storage box 2 .
[0028] Described air storage box 2 is made as square, and side length is 360mm, and thickness is 50mm.
[0029] The distance between each group of air outlets 1 is 250mm.
[00...
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Abstract
The invention discloses a quick cooling device for a precision investment casting shell and a punching method of the quick cooling device. The quick cooling device comprises an air storage box, wherein the air storage box is provided with an air inlet pipe and air outlets. The air inlet pipe is positioned on the side surface of the air storage box. The air outlets are positioned on the front surface of the air storage box. The air outlets comprise holes A, holes B and holes C. The holes A are positioned in the holes B. The holes B are located between the holes A and the holes C. According to the quick cooling device for the precision investment casting shell and the punching method of the quick cooling device, by testing a casting, the structure of the casting is that a plurality of bladesare arranged between two layers of rings, and the gaps of the blades are blocked by a mold shell after coating, so that pinhole defects are reduced, and the pinhole defects of the casting are eliminated, the cooling speed of the casting is effectively improved, and pinhole conditions of the casting is improved.
Description
technical field [0001] The invention belongs to the technical field of investment mold cooling devices, and relates to a rapid cooling device for investment mold precision casting shells and a drilling method thereof. Background technique [0002] The "pinhole" defect is one of the common defects in investment precision castings, and the heat dissipation condition of the casting is the key factor leading to the formation of pinholes in the casting. Aluminum alloy investment castings have different shapes, and different casting structures lead to large differences in the solidification time of castings after pouring. Since investment casting is a hot shell casting, castings cast in the same furnace have good heat dissipation conditions, that is, castings with short solidification time and heat dissipation Castings with poor conditions, that is, castings with long solidification time have large differences in pinholes. Some tests have shown that different castings of the same ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B22D27/04B22C9/04
CPCB22C9/04B22D27/04
Inventor 刘彦鑫曹建
Owner GUIZHOU ANJI AVIATION PRECISION CASTING