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A kind of equipment and method for preparing annular hot extrusion material

A technology of hot extrusion and equipment, which is applied in the manufacture of motor generators, stator/rotor bodies, inductors/transformers/magnets, etc. It can solve problems such as low efficiency and difficulties in large-scale production of molds, and achieve efficiency improvement and replacement simple effect

Active Publication Date: 2020-06-23
GRIREM ADVANCED MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These ways of replacing the punch mold cause low efficiency in the preparation process and cause great difficulties to the large-scale production of the mold

Method used

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  • A kind of equipment and method for preparing annular hot extrusion material
  • A kind of equipment and method for preparing annular hot extrusion material
  • A kind of equipment and method for preparing annular hot extrusion material

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0025] The equipment of the present invention such as figure 1 Described, specifically include die system, punch system, hydraulic system, die system includes die 4, and around the heating device 8 outside die; A rotary rod 5 that rotates the punch 3 and the fixed part 6, the punch system can move up and down with the hydraulic punch 1; the hydraulic system includes a hydraulic punch 1, and the punch 1 moves up and down along the positioning device 2. The concave mold system is mainly used to hold the powder, form the outer diameter of the final magnet, and use the heating device 8 to heat the concave mold 4 and the materials in it. The heating method of the heating device 8 is resistance and induction heating. Resistance heating is preferred. Its advantages The reason is that the temperature of the material in the die 4 can be precisely cont...

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Abstract

The invention relates to hot-press thermal extrusion equipment and a method for preparing a thermal-extrusion ring with the equipment. The equipment comprises a concave die system, a convex die system and a hydraulic system, wherein the concave system comprises a convex dies (4) and a heating device (8) surrounding a concave die; and the convex die system can move up and down with the hydraulic system. The equipment is characterized in that the convex die system comprises a convex die (3) and a convex die (7), a convex die fixation component (6), as well as a rotation rod (5) which can make the convex die (3) and the fixation component (6) rotate. Through use of the equipment and the method, switching of the whole hot-press thermal-extrusion course is convenient and easy; and production efficiency is increased greatly.

Description

technical field [0001] The invention relates to a device and method for preparing ring-shaped hot-extruded magnetic materials. Background technique [0002] With the development of economy and society, the demand for motors with high efficiency, energy saving, high control accuracy and stability is increasing, and the requirements for permanent magnet materials that provide magnetic fields in motors are also increasing. In order to obtain a uniform magnetic field, rare earth Ring magnets made of permanent magnets have been applied in fields such as servo motors. At present, there are mainly two methods for preparing annular permanent magnets, one is the traditional powder metallurgy method, and the other is the hot extrusion method. Among them, the hot extrusion method can produce high aspect ratio and thin-walled permanent magnet rings, so it has obvious advantages over the powder metallurgy method, and has also been developed rapidly. [0003] The preparation process of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/02B22F3/14B22F3/20H02K15/03
CPCB22F3/14B22F3/20B22F2003/145B22F2003/208H01F41/0266H02K15/03
Inventor 罗阳于敦波闫文龙李扩社李红卫孙亮毛永军权宁涛
Owner GRIREM ADVANCED MATERIALS CO LTD
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