Device and method for preparing large-sized high-quality aluminium alloy ingot
a technology of aluminium alloy and ingot, which is applied in the field of metal material processing, can solve the problems of poor surface quality, poor uniformity of internal structures, and the inability of gas film casting methods to prepare large-sized aluminium alloy ingots, and achieve the effects of improving the uniformity of temperature and component fields, improving cooling intensity, and improving the uniformity of initial solidification shells
Inactive Publication Date: 2019-01-10
GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
View PDF0 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The present invention provides a new device and method for preparing a large-sized high-quality aluminium alloy ingot. By using a mold with a partitioned gas supply structure and a combination of intra-mold uniform cooling and extra-mold electromagnetic stirring, the melt is cooled and three-dimensional convectioned during solidification, improving the uniformity of temperature and component fields for the bulky alloy melt. This invention can prepare large-sized aluminum alloy ingots with excellent surface quality and internal quality.
Problems solved by technology
The prior gas film casting method can't be used to prepare large-sized aluminium alloy ingots, as it has the disadvantage that the ingots prepared thereby are featured by poor surface quality, and coarse and non-uniform internal structures.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029]The present invention may be implemented based on the following embodiments, but not limited thereto. These embodiments are merely for the purpose of illustrating the implementation process of the present invention, and not intended to limit the scope of the present invention in any way. In the following embodiments, various processes and methods that have not been described in detail are conventional methods known in the art.
[0030]As shown in FIG. 1, the device of the present invention comprises a uniform cooler 1, a hot top 2, a melt 3, an oil-gas lubrication mold 4, a magnet yoke 5, a coil 6, a graphite ring 7, water spraying holes 8, an ingot 9, a dummy ingot 10, etc. The hot top 2 is arranged above the oil-gas lubrication mold 4, the coil 6 and the magnet yoke 5 are arranged outside the oil-gas lubrication mold 4, the uniform cooler 1 is arranged inside the oil-gas lubrication mold 4, and the dummy ingot 10 is arranged below the oil-gas lubrication mold 4.
[0031]The oil-ga...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Login to View More
Abstract
Provided is a device for preparing a large-sized high-quality aluminium alloy ingot, which is mainly composed of a uniform cooler, a hot top, an oil-gas lubrication mold, an induction coil and a dummy ingot, wherein the hot top is arranged above the oil-gas lubrication mold, the induction coil is arranged outside the oil-gas lubrication mold, the uniform cooler is arranged inside the oil-gas lubrication mold, and the dummy ingot is arranged below the oil-gas lubrication mold. Further provided is a method for preparing a large-sized high-quality aluminium alloy ingot. The device combines a partitioned gas supply mold with the uniform cooler and an electromagnetic stirrer, and the effective coupling of the three achieves forced and uniform solidification forming of a melt under gas pressure contact conditions, such that a stable and continuous gas film is formed between the melt and the mold. The ingot has a smooth surface, and a fine and uniform internal structure.
Description
TECHNICAL FIELD[0001]The present invention belongs to the field of metal material processing, and more particularly, to a device and method for preparing a large-sized high-quality aluminium alloy ingot.BACKGROUND OF THE INVENTION[0002]As improved operational performances have been achieved for large-sized whole-set equipment in the manufacturing industry, it has become an inevitable trend that large-sized integrated structures will be used more and more widely in such fields as aerospace, rail transportation and shipbuilding. For example, large-sized integrated aluminium materials and high-performance thick plates are widely employed to develop large-sized transport aircrafts, high-performance combat aircrafts and high-speed trains. Moreover, as these materials are prepared by large-sized high-quality aluminium alloy ingots, the preparation of the latter is of great significance to improving the equipment capability of the manufacturing industry.[0003]The semi-continuous casting pr...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(United States)
IPC IPC(8): B22D11/07B22D11/112B22D11/115
CPCB22D11/07B22D11/115B22D11/112B22D11/0401B22D11/049B22D11/114
Inventor ZHANG, ZHIFENGXU, JUNZHANG, SHAOMINGBAI, YUELONGGAO, MINGWEILIU, JIANCHAOYANG, YUJIE
Owner GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG