Pressure difference injection moulding method and equipment for amorphous magnesium alloy
A forming method and forming equipment technology, which are applied in the field of amorphous magnesium alloy preparation engineering and equipment, can solve problems that have not been reported and are limited to the experimental research stage, and achieve the effects of good adaptability, easy operation, stable and reliable work
Inactive Publication Date: 2010-06-02
TSINGHUA UNIV
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Problems solved by technology
Domestic research on bulk amorphous is still in its infancy, most of which are limited to the experimental research stage, and there is no report on the preparation method similar to the die-casting process.
Method used
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Embodiment Construction
[0018] The present invention will be further described below in conjunction with the accompanying drawings.
[0019] figure 1 It is a schematic diagram of the device structure of the present invention. Such as figure 1 As shown, an amorphous magnesium alloy differential pressure injection molding equipment includes an upper hydraulic cylinder (1), a lower hydraulic cylinder (2), an upper punch (3), a lower punch (4), an induction power supply, Heating coil (6), pressure chamber (7), pressure chamber inlet (8), mold inlet (9), cooling device (11), mold (10), working cavity, vacuum port (13), protection Gas inlet, furnace door, vacuum pump (16), protective gas cylinder, negative pressure tank (18), quick opening valve, negative pressure valve; The upper hydraulic cylinder (1) and the lower hydraulic cylinder (2) are respectively connected to the upper punch (3) is connected with the lower punch (4) to provide injection operation power; the upper punch (3) and the lower punch ...
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Abstract
The invention provides an amorphous magnesium alloy differential pressure injection molding method and equipment thereof and pertains to the technical field of alloy preparation engineering and equipment. A mould (10) is cooled; a mother alloy is added in from the upper end of a compression chamber (7); an upper compression bar (3) goes down to the place over the compression chamber (7); a workingcavity (12) is vacuumized by a vacuum pump (16); the compression chamber (7) is heated by a heater coil (6) so as to cause the mother alloy to be melted; a quick-opening valve (19) is opened, the upper compression bar (3) and a lower compression bar (4) go down for carrying out the injection, and the liquid alloy is injected into a die cavity of a mould (10); the liquid ally is solidified and theamorphous magnesium alloy is obtained; the operation of injection is finished. The equipment includes the upper compression bar (3), the lower compression bar (4), the heater coil (6) and a working chamber (12), etc. The method and the equipment of the invention have high heating efficiency; the molten bath of magnesium alloy can be cooled quickly; the operation of differential pressure injectionis simple, the applicability is better, the working is stable and reliable, and the process is easy to be controlled, thus being very suitable for preparing bulk amorphous magnesium alloy.
Description
technical field [0001] The invention relates to a differential pressure injection molding method and equipment suitable for preparing bulk amorphous magnesium alloys, which can be applied to preparing bulk amorphous alloys and belongs to the technical field of amorphous magnesium alloy preparation engineering and equipment. Background technique [0002] Amorphous alloys with disordered structures have attracted widespread attention for their unique physical, chemical and mechanical properties. For example, many binary and ternary magnesium-based amorphous alloys have been found [3-6], which have good corrosion resistance and high hydrogen storage performance. For a long time, amorphous magnesium alloys have been mainly prepared by rapidly solidifying alloy melts, and the obtained samples have a size smaller than 100 μm in at least one dimension, such as thin strips, filaments, or micropowders. Due to the limitation of their own size, many excellent properties of amorphous a...
Claims
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IPC IPC(8): B22D17/12B22D17/14C22C45/00
Inventor 彭浩李双寿汤彬李生录陈均林
Owner TSINGHUA UNIV