Magnesium alloy for hub, hub and manufacturing method of hub
A manufacturing method, magnesium alloy technology, applied in the direction of wheel hub, transportation and packaging, vehicle parts, etc., can solve the problems of wheel matrix corrosion, insufficient corrosion resistance, and influence on wide use, achieve good corrosion resistance, reduce corrosion efficiency, The effect of excellent mechanical properties
Inactive Publication Date: 2021-07-20
BAOSHAN IRON & STEEL CO LTD
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the magnesium alloy wheel is easy to collide with hard objects such as road stones during the driving process of the car, resulting in many scratches on the surface of the wheel hub and destroying the coating protection layer on the surface of the parts, so that the magnesium alloy of the wheel hub matrix is exposed to the air and causes wheel damage. Severe corrosion of the substrate will adversely affect the service life of magnesium alloy wheel parts and vehicle safety
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 1-6 and comparative example 1
[0082] The wheel hub of Examples 1-6 and the comparative wheel hub of Comparative Example 1 were prepared by the following steps:
[0083](1) Casting: SF can be used in casting 6 and CO 2 Mix gas, heat up to completely melt pure magnesium, add other alloy raw materials according to the chemical composition ratio shown in Table 1, for example, pure Al, Zn, Mg-Mn master alloy, Mg-Ca master alloy can be added until all raw materials are completely melted, Then lower the temperature to 700-730°C, stir and remove the slag, then lower the temperature to 660-690°C and let it stand for 20-60 minutes, so that the Mn in the alloy liquid combines with Fe elements to form Fe-Mn intermetallic compounds deposited in the alloy liquid The bottom of the bottom; remove the Fe-Mn intermetallic compound deposited at the bottom, and use semi-continuous casting or mold casting to obtain magnesium alloy ingots. The structure of the obtained magnesium alloy ingots is discontinuously distributed on t...
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 |
|---|---|---|
| Yield strength | aaaaa | aaaaa |
| Tensile strength | aaaaa | aaaaa |
| Corrosion rate | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a magnesium alloy for a hub. The magnesium alloy is prepared from the following chemical elements in percentage by mass: 4.5-9.5 weight percent of Al, 0.2-0.9 weight percent of Mn, 0.2-1.9 weight percent of Ca, 0.2-1.0 weight percent of Zn, more than 0 and less than or equal to 0.007 weight percent of Fe, less than or equal to 0.007 weight percent of Ni, less than or equal to 0.007 weight percent of Cu and the balance of Mg and other inevitable impurities. Each chemical element further satisfies at least one of the following elements: more than 40 of Mn / Fe; 0.03-0.2 of Ca / Al; and less than or equal to 150ppm of Fe + Ni + Cu. In addition, the invention further discloses the hub which is made of the magnesium alloy for the hub. In addition, the invention further discloses a manufacturing method of the hub, the manufacturing method of the hub comprises the following steps of (1) casting, (2) heat treatment, (3) forging, and (4) finish machining and coating.
Description
technical field [0001] The invention relates to an alloy material, a product made of the alloy material and a manufacturing method thereof, in particular to a magnesium alloy, a magnesium alloy product and a manufacturing method thereof. Background technique [0002] Automobile hubs are important parts connecting brake discs, wheel discs and axle shafts, and play an important role in the quality and driving safety of automobiles. At present, the mainstream materials for automobile hubs are mainly made of steel, cast aluminum alloy, and forged aluminum alloy. and other materials. With the development of science and technology and people's higher and higher requirements for automobiles, new requirements have been put forward for automobile wheels in terms of quality, performance, appearance, energy saving and emission reduction. As the lightest structural metal material, magnesium alloy has a density of 2 / 3 that of aluminum alloy and only 1 / 4 of steel. Therefore, the use of m...
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 IPC IPC(8): C22C23/02C22C1/03C22F1/06B60B27/00
CPCB60B27/00C22C1/03C22C23/02C22F1/06
Inventor 王成全徐世伟唐伟能谢玉
Owner BAOSHAN IRON & STEEL CO LTD