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Hot-press thermal deformation furnace used for preparing anisotropic bonded NdFeB

An anisotropic, NdFeB technology, applied in the direction of magnetic materials, magnetic objects, inorganic materials, etc., can solve the problems of low efficiency, high cost, high energy consumption, reduce energy consumption, save resources, improve production efficiency Effect

Active Publication Date: 2014-08-20
董中天
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the shortcomings of low efficiency, high cost and high energy consumption in the existing vacuum thermal deformation furnace, and provides a continuous hot pressing and thermal deformation for the preparation of anisotropic bonded NdFeB Hot pressing - heat deformation furnace

Method used

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  • Hot-press thermal deformation furnace used for preparing anisotropic bonded NdFeB
  • Hot-press thermal deformation furnace used for preparing anisotropic bonded NdFeB
  • Hot-press thermal deformation furnace used for preparing anisotropic bonded NdFeB

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 , 3 A hot pressing-thermal deformation furnace for preparing anisotropic bonded NdFeB is shown, including a frame 1 and a frame 2. The frame 1 is a fully sealed structure and is fixed on the frame 2. A movable door 11 is arranged on the front plate of the frame 1, and also includes a lower oil cylinder 3, an upper oil cylinder 4, a lower pressure head 5, a mold 6, an induction coil 7, an upper pressure head 8, and a displacement sensor 9; The upper pressure head 8 is fixed, and the induction coil 7 is set under the upper pressure head 8; the lower oil cylinder 3 is installed on the bottom plate of the frame, and the cylinder body of the upper oil cylinder 4 is fixedly connected with the piston rod of the lower oil cylinder 3. The cylinder body of oil cylinder 4 passes through the frame bottom plate and is sealed with the bottom plate; cylinder top; when the piston rod of the upper oil cylinder 4 moves to the upper limit position, the lower pressure h...

Embodiment 2

[0031] Such as figure 2 , 3 A hot pressing-thermal deformation furnace for preparing anisotropic bonded NdFeB is shown, including a frame 1 and a frame 2. The frame 1 is a fully sealed structure and is fixed on the frame 2. Frame 1 front plate is provided with dodge door 11, also comprises lower oil cylinder 3, upper oil cylinder 4. Lower pressure head 5, mold 6, induction coil 7, upper pressure head 8, displacement sensor 9, extension tube 10; upper pressure head 8 is fixed on the top plate of the frame 1, and induction coil 7 is set on the upper pressure head 8 below; the lower oil cylinder 3 is installed on the base plate of the frame, and the cylinder body of the upper oil cylinder 4 is inserted in the cylinder barrel of the lower oil cylinder 3 as the piston rod of the lower cylinder to form a composite oil cylinder structure with a small footprint and a compact structure. The cylinder body of the upper oil cylinder 4 passes through the frame bottom plate and is sealed...

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Abstract

The invention discloses a hot pressing-hot deformation furnace for preparing anisotropic bonded NdFeB. Including frame and machine base, the frame is a fully sealed structure and fixed on the machine base, there is a movable door on the front plate of the frame, and it also includes lower oil cylinder, upper oil cylinder, lower pressure head, mold, induction coil, upper pressure head , displacement sensor; the upper pressure head is fixed on the top plate of the frame, and the induction coil is set under the upper pressure head; the lower oil cylinder is installed on the bottom plate of the frame, and the cylinder body of the upper oil cylinder is fixedly connected with the piston rod of the lower oil cylinder. Pass through the bottom plate of the frame and seal with the bottom plate; the lower pressure head is fixed on the top of the piston rod of the upper cylinder, and the mold is sleeved on the lower pressure head and fixed on the top of the upper cylinder block; when the piston rod of the upper cylinder reaches the upper limit position, The lower pressure head forms a plane with the top of the mold; the displacement sensor is fixed at the bottom of the lower cylinder to measure the progress of the piston rod of the lower cylinder. The invention can reduce energy consumption, improve production efficiency and realize industrialized production.

Description

technical field [0001] The invention belongs to the technical field of anisotropic bonded NdFeB, and relates to a device for preparing anisotropically bonded NdFeB, in particular to a hot pressing-thermal deformation furnace for preparing anisotropically bonded NdFeB. Background technique [0002] The preparation method of anisotropic bonded NdFeB includes HDDR process and hot pressing-hot deformation process. The technology of producing anisotropic bonded NdFeB by HDDR process is relatively mature, and the anisotropic bonded NdFeB prepared by hot pressing-thermal deformation technology has better performance than the anisotropic bonded NdFeB prepared by HDDR process. Good magnetic properties, especially higher coercive force, have a wider range of uses. Therefore, the preparation of anisotropic bonded NdFeB by hot pressing-hot deformation process has attracted everyone's attention in recent years. The main phase Nd of NdFeB magnet 2 Fe 14 B has a tetragonal lattice struc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/057H01F1/08B22F3/03
Inventor 董中天
Owner 董中天