A method for lost foam casting liquid-liquid composite aluminum-magnesium bimetallic casting
A lost foam casting and bimetallic technology, which is applied in the field of bimetallic parts manufacturing, can solve the problems of adverse effects of bimetallic composite effects, difficulty in controlling the bimetallic interface, and difficulty in composite preparation, so as to avoid oxidation, ensure bonding strength, and improve The effect of overall performance
Active Publication Date: 2017-12-12
HUAZHONG UNIV OF SCI & TECH
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The liquid-liquid composite method does not need to prepare the solid part first, and can directly cast bimetallic castings, which reduces the process steps, improves production efficiency, and reduces production costs. However, the current liquid-liquid composite method is mostly used in ferrous metals. Composite preparation of magnesium alloys, while magnesium alloys are more active, easy to burn and oxidize, and its composite preparation is more difficult. The current liquid-liquid composite method is difficult to control the bimetallic interface, and the phenomenon of metal mixed liquid is prone to occur, which affects the bimetallic composite effect. Negative Effects
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
[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0024] see figure 1 and figure 2 , the method for lost foam casting liquid-liquid composite aluminum-magnesium bimetallic castings provided by the preferred embodiment of the present invention is suitable for the manufacture of aluminum-magnesium bimetallic castings with a large connection contact area and complex shapes. The metal interface is easy to control, the bimetal bonding performance...
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 |
|---|---|---|
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a lost-foam casting method of a liquid-liquid composite aluminum-magnesium bimetal casting. The method comprises the following steps: providing a composite model; coating the composite model with a coating; burying sand in the composite model and molding; respectively pouring magnesium alloy pouring liquid and aluminum alloy pouring liquid into the composite model till the composite model is fully poured; and cleaning after the magnesium alloy pouring liquid and the aluminum alloy pouring liquid in a sand box are cooled and coagulated to obtain the aluminum-magnesium bimetal casting, wherein the composite model comprises a casting magnesium alloy part foam model, aluminum sheets, a casting aluminum alloy part foam model, a magnesium alloy pouring system part foam model and an aluminum alloy pouring system part foam model which are successively connected with each other along a vertical direction; the magnesium alloy pouring system part foam model is connected to the casting magnesium alloy part foam model; the aluminum alloy pouring system part foam model is connected to the casting aluminum alloy part foam model.
Description
technical field [0001] The invention belongs to the field related to the manufacture of bimetallic parts, and more specifically relates to a method for lost foam casting liquid-liquid composite aluminum-magnesium bimetallic castings. Background technique [0002] Magnesium and aluminum are important engineering light metals, each with its own advantages and disadvantages. Magnesium alloy is light in weight, has good damping and thermal conductivity, and our country is rich in resources, but has poor plasticity and corrosion resistance; aluminum alloy has good plasticity, good corrosion resistance and low cost, but its density is higher than that of magnesium alloy. If the aluminum alloy and magnesium alloy are combined to form an aluminum-magnesium bimetal, the advantages of the two materials can be combined, and the strengths and weaknesses can be maximized to meet both performance requirements and lightweight requirements. Great application prospects. At present, the met...
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 Patents(China)
IPC IPC(8): B22C9/04B22C9/08B22D19/16
CPCB22C9/04B22C9/082B22D19/16
Inventor 蒋文明李广宇樊自田江再良刘鑫旺刘富初
Owner HUAZHONG UNIV OF SCI & TECH