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Elastic core support for molding sand

A technology of elastic core and molding sand, which is applied in the direction of mold boxes, casting molding equipment, metal processing equipment, etc., can solve the problems of incomplete melting of core supports, etc., to improve market competitiveness, improve product dimensional accuracy and shape accuracy, reduce The effect of complex grades of craftsmanship

Inactive Publication Date: 2017-08-18
高州市金松铸造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the core supports on the market are "I" type, and generally there is a problem that the molten steel cannot completely melt the core supports.

Method used

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  • Elastic core support for molding sand

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. As shown in the figure, the molding sand elastic core support includes the upper stay 3 and the lower stay 2, and the connecting piece connecting the upper stay 3 and the lower stay 2, the materials used for the upper stay 3 and the lower stay 2 are the same as the casting material Similarly, its melting point is slightly higher than that of the casting metal to ensure that it has sufficient strength to support the sand core before the casting is completely solidified, and at the same time it is well fused with the casting during the solidification process, and the surface is clean, oil-free, rust-free, Without water vapor, it is best to be galvanized or tin-plated, and it must be pickled strictly before electroplating. The connecting piece includes an upper link 5 and a lower link 4, the upper link 5 is connected to the upper brace 3, the lower link 4 is...

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Abstract

The invention relates to a molding sand elastic core support for fixing a sand core, which belongs to the technical field of casting. The molding sand elastic core support includes an upper stay and a lower stay, and a connecting piece connecting the upper stay and the lower stay, and is characterized in that: the connecting piece includes an upper connecting rod and a lower connecting rod, and the upper connecting rod The rod is connected to the upper strut, the lower link is connected to the lower strut, the upper link and the lower link are connected by an elastic block, and the upper strut is provided with a fine hole. The beneficial effects of the present invention are: solving the problem that the molten steel cannot completely melt the core support, solving the problems of folded cores and floating cores of such products, improving the yield of such products; improving product production efficiency, reducing production Cost, improve the market competitiveness of the product.

Description

technical field [0001] The invention relates to a molding sand elastic core support for fixing a sand core, which belongs to the technical field of casting. Background technique [0002] At present, it is a common practice to use special shaped supports, ie core supports, to assist sand cores in casting technology. The shape of the core support is various, such as flat, arc-shaped, U-shaped, etc., and the size and length are different. The core support should be selected according to the position of the core support in the casting, the shape of the cavity, and the wall thickness of the casting. shape, size. However, for complex cavity products with multiple cores, multiple compartments, broken chambers, and broken suspension cores, and products with strict requirements on wall thickness, size, and shape and position accuracy, it is necessary to design and manufacture many core supports with different shapes and sizes. The height of some core supports is very different, and...

Claims

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Application Information

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IPC IPC(8): B22C21/14
CPCB22C21/14
Inventor 邓锦志
Owner 高州市金松铸造有限公司