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Amorphous alloy thermoforming apparatus and technique

An amorphous alloy, hot-press forming technology, applied in forging/pressing/hammer devices, forming tools, metal processing equipment, etc., can solve the problems of easy crystallization, low deformation rate and low processing efficiency of amorphous alloys

Active Publication Date: 2009-07-01
BYD CO LTD
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Problems solved by technology

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a hot-press forming device for amorphous alloys, which aims to solve the problem of long heating time, low deformation rate and low processing efficiency of existing amorphous alloy forming equipment, which lead to the deformation of amorphous alloys during the deformation process. The problem of easy crystallization in

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Embodiment Construction

[0014] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the 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.

[0015] figure 1 It shows an amorphous alloy hot press forming device provided by an embodiment of the present invention, including a closed chamber 1, and a mold set 2 located in the closed chamber 1. The mold set 2 includes an upper mold 21, a lower mold 22 and an upper mold and a lower mold. The forming die 23 between the dies 21, 22, the blank 100 is placed in the forming die 23. A valve body 3 is arranged on the airtight chamber 1, and the valve body 3 is connected with a vacuum system or a gas supply system (not shown in the figure), which can ensure that the entire hot pressing proce...

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Abstract

The invention provides a device and a process for the hot pressing and molding of an amorphous alloy. The device is provided with a vacuum, inert gas or nitrogen gas protective environment, and a mould set and an induction heating coil positioned in the environment; the mould set comprises an upper mould, a lower mould and a molding mould; the induction heating coil is at least wound in a peripheral space of the molding mould and is not contacted with the molding mould; and the process sequentially comprises the following steps in the vacuum, inert gas or nitrogen gas protective environment: blank placement, induction heating, hot pressing and molding, cooling, and mould extraction. By adopting an induction heating mode, the process can rapidly concentrate on heating a molded blank to Tg temperature above, and carry out the hot pressing and molding within the temperature range between Tg and Tm or the Tm temperature above; a molding strain rate can reach between 10 and 10S; and the process has high processing efficiency and can effectively prevent crystallization of the amorphous alloy in the molding process within shorter temperature rise time.

Description

technical field [0001] The invention belongs to the technical field of amorphous alloy forming, and in particular relates to an amorphous alloy hot-press forming device and process. Background technique [0002] In recent years, with the deepening of research on the composition, structure and performance of bulk amorphous alloys, people have increasingly realized that the excellent physical, chemical, mechanical properties and precision formability of bulk amorphous alloys will make It has become a key material supporting high and new technologies such as precision machinery, information, aerospace devices, and national defense industries in the future. [0003] Compared with traditional crystalline alloy materials, bulk amorphous alloy materials have obvious advantages in many aspects of performance, and have more excellent mechanical properties. They are not only greatly superior in strength, elasticity, toughness, hardness, etc. Traditional metal materials are not inferi...

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Application Information

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IPC IPC(8): B21D22/00B21D37/16B21D37/10B21D37/01B21J5/00B21J1/06B21J13/02
Inventor 马志军张法亮
Owner BYD CO LTD
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