Oriented solidification casting method and apparatus

A directional solidification and mold technology, applied in the field of casting, can solve the problems of inability to judge the dynamic position, part shape and size restrictions, and no information collection system, etc. It is suitable for mass production, large temperature gradient, and wide application range Effect
CN1268459CInactive Publication Date: 2006-08-09ๅ‘จ็…ง่€€
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
ๅ‘จ็…ง่€€
Publication Date
2006-08-09
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The oriented solidification casting method includes the following steps: pre-heating the mold with controllable local temperature, feeding the molten metal into the mold cavity via the feeding port, controlling the local temperature of the mold to start cooling while maintaining the rest parts of the mold in heat maintaining state, collecting the data via sensors to judge the positions of solidified regions, crystallized regions and liquid phase regions, and controlling the local temperature of the mold part contacting the liquid area to be solidified to make the metal liquid in overheat state while making the mold part contacting the crystallized material disperse heat. The oriented solidification casting apparatus includes mold with hollow cooling channel and heating element. The present invention is simple and controllable and may be used in making large complicated casting, and the product has excellent structure.
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Description

technical field

[0001] The invention belongs to the technical field of casting, and in particular relates to a directional solidification casting method and a device thereof. Background technique

[0002] Since the directional solidification method was first used to study planar and cellular solidification in 1952, directional solidification technology has developed rapidly. This technique was originally used to eliminate the transverse grain boundaries generated during the crystallization process, thereby improving the unidirectional mechanical properties of the material. Because directional solidification technology can obtain some materials with special structure orientation and excellent performance, the main application of current directional solidification technology is to produce castings with uniform columnar crystal or single crystal structure, especially in the aviation field to produce superalloy engine blades Compared with castings obt...

Claims

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