Extrusion casting method of particle reinforced magnesium matrix composites
A composite material and squeeze casting technology, which is applied in the field of preparation of magnesium-based composite materials, can solve problems such as poor comprehensive performance, and achieve the effects of increasing elongation, reducing cutting amount, and improving wettability.
Inactive Publication Date: 2014-12-10
ZHONGBEI UNIV
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Problems solved by technology
[0004] In order to solve the problem of poor comprehensive performance in the preparation of existing magnesium-based composite materials, the present invention provides a method for preparing particle-reinforced magnesium-based composite materials by squeeze casting
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Embodiment Construction
[0008] A preparation method for extrusion casting of particle-reinforced magnesium-based composite materials, which is realized by the following steps: a. Weigh 50 g of zinc oxide, measure 415 ml of deionized water, add it to a mixer and stir for 20 minutes; b. Weigh 10 g of water glass Add to the mixer and continue to stir for 10 minutes to form a sodium-based zinc oxide suspension; c. Weigh 25g of graphite powder and stir for 30min to prepare a release agent for later use; d. Take 40g of reinforced particle silicon carbide and add it to a beaker, then soak it in 50ml of industrial alcohol for 2h After cleaning, after dumping the turbid liquid, add 50ml of industrial alcohol again to soak and wash, and let it stand for 1h; e, add 100ml of deionized water to the beaker, stir and wash for 5min, pour off the deionized water, and repeat the operation five times; f, Put the washed silicon carbide into a quartz container and dry and bake it at 250°C for 4 hours before use; Inject t...
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Abstract
The invention relates to an extrusion casting method of particle reinforced magnesium matrix composites. The extrusion casting method includes steps of a, weighting zinc oxide and stirring deionized water; b, weighing water glass for stirring continuously; c, weighing graphite powder to stir and obtain mold release agent in reserve; d, soaking silicon carbide by industrial alcohol and washing; e, adding the deionized water for stirring and washing and then pouring out the deionized water; f, drying and baking for reserve; g, weighing AZ91D magnesium allow to completely fuse and preserving heat at the temperature of 720 DEG C; h, pressing the silicon carbide into the AZ91D magnesium melt to stir; i, opening a mold and taking out of a sample after combing the mold and casting; j, solidly dissolving and cooling by air after heat preservation. Via extrusion and thermal treatment, tensile strength of the magnesium matrix composites is 231MPa, and ductility is 3.21%.
Description
technical field [0001] The invention relates to a preparation method of a magnesium-based composite material, in particular to a method for preparing a particle-reinforced magnesium-based composite material by extrusion casting. Background technique [0002] With the shortage of energy sources, people pay more and more attention to lightweight and green manufacturing. As a new type of lightweight and environmentally friendly material, magnesium alloys have increasingly attracted people's attention. Magnesium alloy has excellent specific strength, specific stiffness and shock absorption performance, is an ideal structural material, and is rich in resources, so its research and application have been developed rapidly. However, magnesium alloy has low strength, low hardness, and poor corrosion resistance, so its application in the industrial field has been greatly limited. [0003] In order to improve these limitations of magnesium alloys, scholars at home and abroad have star...
Claims
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IPC IPC(8): B22D18/02C22C1/02
Inventor 赵宇宏侯华靳玉春田园
Owner ZHONGBEI UNIV