Novel chilling block for casting

A cold iron, a new type of technology, applied in the field of casting, can solve the problems of casting scrap, increase casting welding repair rate, looseness, etc., to achieve the effect of improving heat conduction, improving chilling effect, and increasing heat dissipation area
CN112743059AInactive Publication Date: 2021-05-04SHANGHAI HULIN HEAVY IND
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI HULIN HEAVY IND
Publication Date
2021-05-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a novel chilling block for casting. The chilling block is provided with a bottom surface, a top surface and side surfaces, wherein the bottom surface is used for being in contact (including direct contact and indirect contact) with the surface of a casting, the bottom surface and the top surface are connected (including direct connection and indirect connection) through the side surfaces, and the cross section area of the chilling block is gradually reduced from the bottom surface to the top surface. The novel chilling block is simple and ingenious in structure and easy to machine, the corresponding technical effect can be effectively achieved, the chilling effect at the edge junction is gently transited, and the situation that the casting cracks at the edge of the chilling block is effectively avoided. Besides, due to a polygon structure, the heat dissipation area is enlarged, the conduction of heat energy is improved, the chilling effect of the chilling block is improved, the product quality of the casting is ensured, and the quality of the casting is improved.
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Description

technical field

[0001] The invention relates to a novel cold iron for casting, which belongs to the technical field of casting. Background technique

[0002] In the casting production process, due to the different complexity of the casting parts and the uneven wall thickness, the cooling rate of each part during the solidification process is inconsistent, and casting defects are easily generated. In order to ensure the quality of castings, chill iron is usually placed inside or on the surface of the cavity to be chilled to control shrinkage and obtain directional solidification to improve feeder feeding efficiency and prevent casting defects such as shrinkage cavities and porosity.

[0003] At present, cold iron is usually cast from carbon steel or cut from steel plate. In terms of size, except for the conformal cold iron, the square regular cold iron is basically used and placed on the working surface to be chilled. However, in the process of use, cracks occasionally appe...

Claims

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