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An unmanned flexible magnetic field forming method

A magnetic field forming and flexible technology, which is applied in the manufacture of inductors/transformers/magnets, electrical components, circuits, etc., can solve the problems of heavy manual operations, reduce difficulty, realize the effect of unmanned and flexible production

Active Publication Date: 2021-07-27
赣州诚正稀土新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] It can be seen from the above process that the oil stripping process is all completed by manual operation, and it needs to be protected by a closed and inert environment. It needs to be isolated and operated. The operation is relatively delicate, it is difficult to complete it automatically by manipulators, and it is heavy to rely on manual operation.

Method used

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  • An unmanned flexible magnetic field forming method
  • An unmanned flexible magnetic field forming method
  • An unmanned flexible magnetic field forming method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] An unmanned flexible magnetic field forming method, comprising the following steps:

[0048] Step 1, smelting after batching to obtain steel ingots;

[0049] Step 2. The steel ingot smelted in step 1 is subjected to hydrogen crushing, and dehydrogenation is carried out after hydrogen crushing;

[0050] Step 3, performing intermediate crushing on the dehydrogenated alloy, then fully mixing the intermediate crushed coarse powder, and then passing the jet mill after the coarse powder is fully mixed to obtain alloy fine powder;

[0051] Step 4, mixing the alloy fine powder in step 3 and adding an antioxidant to obtain a mixed fine powder;

[0052] Step 5, placing the mixed fine powder in step 4 for orientation in a magnetic field, and pressing into a green body;

[0053] Step 6, coating the surface of the green body in step 5 with a pyrolysis agent, then putting on a film bag, then putting on a vacuum bag and then vacuuming, and packing the green body;

[0054] Step 7, car...

Embodiment 2

[0063] Such as Figure 1-3 As shown, the present application provides a bag stripping device for the forming method of each embodiment. The bag stripping device includes a bag stripping device 1 and a driving mechanism 2. The bag stripping device 1 includes several vertical rods distributed in a uniform circular array 101, the lower end of the vertical rod 101 is provided with a tapered tip portion, and several broken pieces 102 are arranged near the tapered tip portion; the upper end of the vertical rod 101 is connected to the power output shaft 202 of the drive mechanism 2, and the drive mechanism 2 includes a drive box , the drive box 201 is provided with a first sheave 204, a first toggle unit 205, a second sheave 206 and a second toggle unit 207, the first toggle unit 205 is in the shape of a circle as a whole, with one side protruding outward. A sharp corner is formed, the top of the sharp corner is provided with a first dial 208, and the outer periphery of the first tog...

Embodiment 3

[0074] An unmanned flexible magnetic field forming method, comprising the following steps:

[0075] Step 1, smelting after batching to obtain steel ingots;

[0076] Step 2. The steel ingot smelted in step 1 is subjected to hydrogen crushing, and dehydrogenation is carried out after hydrogen crushing;

[0077] Step 3, performing intermediate crushing on the dehydrogenated alloy, then fully mixing the intermediate crushed coarse powder, and then passing the jet mill after the coarse powder is fully mixed to obtain alloy fine powder;

[0078] Step 4, mixing the alloy fine powder in step 3 and adding an antioxidant to obtain a mixed fine powder;

[0079] Step 5, placing the mixed fine powder in step 4 for orientation in a magnetic field, and pressing into a green body;

[0080] Step 6, coating the surface of the green body in step 5 with a pyrolysis agent, then putting on a film bag, then putting on a vacuum bag and then vacuuming, and packing the green body;

[0081] Step 7. P...

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Abstract

The invention relates to an unmanned flexible magnetic field molding method. In the unmanned flexible magnetic field molding method, a green body is obtained through smelting, hydrogen crushing, intermediate crushing, and orientation molding, and the surface of the green body is coated with a pyrolysis agent, and then covered with a film. Then put on the vacuum bag and vacuumize to pack the green body; carry out isostatic pressing on the packaged green body; heat the green body after isostatic pressing, the pyrolysis agent pyrolyzes to generate gas, and the gas expands to open the film bag and vacuum bag, and then use the bag peeling device to peel off the film bag and vacuum bag, and take out the green body; the taken out green body is sent to the sintering furnace for sintering; the present invention coats a layer of pyrolysis agent when packaging the green body before cold pressing , the pyrolysis agent can be decomposed by heating after the cold pressing is completed, generating gas, swelling the coated film bag and vacuum bag, and separating the film bag and vacuum bag from the green body, which greatly reduces the difficulty of peeling the bag. The bag peeling device automatically peels bags to realize unmanned and flexible production.

Description

technical field [0001] The invention belongs to the technical field of rare earth permanent magnet material production, and in particular relates to an unmanned flexible magnetic field forming method. Background technique [0002] Neodymium magnet (Neodymium magnet), also known as NdFeB magnet (NdFeB magnet), is a tetragonal crystal formed by neodymium, iron, and boron (Nd2Fe14B). In 1982, Masato Sagawa of Sumitomo Special Metals discovered neodymium magnets. The magnetic energy product (BHmax) of this magnet is greater than that of the samarium cobalt magnet, and it is the material with the largest magnetic energy product in the world at that time. Later, Sumitomo Special Metals successfully developed the powder metallurgy process, and General Motors successfully developed the melt-spinning process, which was able to prepare NdFeB magnets. This kind of magnet is the second most magnetic permanent magnet after the absolute zero holmium magnet, and it is also the most commo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/02
CPCH01F41/0266
Inventor 赖正泷赖耀星彭邦平肖武孙朱芷慧
Owner 赣州诚正稀土新材料股份有限公司