Device for preparing monotectic alloy through laser-strong magnetic field composite fusion casting

A monotectic alloy and strong magnetic field technology, which is applied in the field of laser-strong magnetic field composite melting and casting, can solve the problems of monotectic alloy macro-segregation, low production efficiency, and uneven structure, so as to reduce the movement speed, suppress convection, reduce The effect of tissue segregation

Inactive Publication Date: 2015-05-06
NANCHANG HANGKONG UNIVERSITY
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  • Claims
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Problems solved by technology

However, the vacuum heating furnace device is required in the process of preparing monotectic alloys by the strong magnetic field method, which leads to complicated operations and low production efficiency. The prepared monotectic alloys still have problems such as macrosegregation and uneven structure.

Method used

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  • Device for preparing monotectic alloy through laser-strong magnetic field composite fusion casting
  • Device for preparing monotectic alloy through laser-strong magnetic field composite fusion casting

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Embodiment Construction

[0009] Below in conjunction with accompanying drawing and example the present invention is described in further detail.

[0010] Such as figure 1 and figure 2 As shown, the present invention mainly includes CO 2 Laser, side-axis automatic powder feeder 9, strong magnetic field device 14, copper casting mold 16, processing machine tool 15, and numerical control system 1. Wherein, copper mold 16 is made of left half copper mold 22 and right half copper mold 22 '. When working, the specific implementation method and steps are as follows:

[0011] The first step: according to the chemical composition of the monotectic alloy, the metal powder of each component is mixed according to the mass percentage, and added to the film-forming material and mechanically stirred to prepare a slurry;

[0012] Step 2: After mixing the prepared slurry evenly with a planetary ball mill, place it in a drying box and dry it at a temperature of 120~250°C, and then mechanically grind it into a mono...

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Abstract

The invention discloses a device for preparing monotectic alloy through laser-strong magnetic field composite fusion casting. A strong magnetic field device is fixedly arranged on a processing machine tool, a copper casting mold is placed in the center position of the strong magnetic field device and is fixedly arranged on the processing machine tool, and in addition, in the laser-strong magnetic field composite fusion casting process, the copper casting mold with a circulation cooling water system can further accelerate the cooling solidification speed of the melt monotectic alloy power, so the tissue segregation and the structure layering of the monotectic alloy are eliminated, the efficiency, the quality and the performance of the monotectic alloy preparation are improved, the preparation cost is reduced, and the problem that the monotectic alloy with large size, uniform tissue and high performance cannot be prepared by the ordinary casting method under the effect of the gravity field is solved.

Description

technical field [0001] The invention relates to a laser-strong magnetic field composite melting and casting device, which is especially suitable for preparing monotectic alloys. Background technique [0002] Monotectic alloys, also known as immiscible alloys, have many unique physical, chemical and mechanical properties. When the softer second phase particles are evenly dispersed and distributed on the matrix with higher hardness, the monotectic alloy has excellent self-lubricating characteristics and can be used as an automobile bearing material. When the second phase particles are uniformly dispersed and distributed on the substrate with good electrical conductivity, the monotectic alloy has both high electrical conductivity and high wear resistance, and can be used as an electrical contact material. When the second phase particles are uniformly dispersed and distributed on the matrix with good thermal conductivity, although the dispersed particles are separated from each...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D27/02C22F3/02C21D10/00
Inventor 周圣丰戴晓琴
Owner NANCHANG HANGKONG UNIVERSITY
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