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Method and device for sintering ndfeb cooking material

A cooking and charging technology, applied in the direction of magnetic materials, inorganic material magnetism, electrical components, etc., can solve the problems of high operator's work intensity and surface treatment risks, shorten the cooking time, improve the bonding strength and prevent Corrosion performance, the effect of improving drying efficiency

Active Publication Date: 2016-03-09
SANVAC BEIJING MAGNETICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional cooking process uses a single cooking pot, and then uses clean water to rinse the cooking liquid on the magnet. This method is likely to cause the residual rubber and oil in the cooking liquid to adhere to the inner hole and surface of the magnet (especially Some tubular products with relatively large pore size), which brings potential risks to subsequent surface treatment
At the same time, the magnet needs to be transported back and forth between the cooking pot and the clean water pool, resulting in high work intensity for the operator

Method used

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  • Method and device for sintering ndfeb cooking material

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Effect test

specific Embodiment approach

[0015] The cooking device of the present invention comprises a feeding table 7, a cooking tank 1, an ultrasonic cleaning tank 2, an alcohol dehydration tank 3, a drying table 4 and a charging basket 6; wherein the feeding table 7, the cooking tank 1, and the ultrasonic cleaning tank 2. The alcohol dehydration tank 3 and the drying table 4 are arranged in the above sequence; the drying table 4 also has a blower 5, the cooking tank 1 has a heating device, and the ultrasonic cleaning tank 2 has an ultrasonic device. like figure 1 shown.

[0016] First prepare cooking liquid, the composition and ratio of cooking liquid are: its main components include water, caustic soda (scientific name sodium hydroxide) and phosphorus-free washing powder, and the weight percentages of each component are: water: 94% to 97%, caustic soda : 2~4%, Phosphate-free laundry detergent: 1~2%.

[0017] The prepared cooking liquid is put into the cooking tank 1, and the magnet is put into the charging bas...

Embodiment 1

[0020] Select the finished NdFeB sliced ​​product with a size of Φ3.3xΦ1.5x5mm, and put it into figure 1 Shown in the feed basket 6, and immerse in the boiled cooking tank 1 and cook the material for 40 minutes. After all the boiled products are scattered, take out the basket, put it into the ultrasonic cleaning tank 2, ultrasonically for 20 seconds, then put it into the alcohol dehydration tank 3 and dip it in alcohol for 1 second for dehydration; finally put it on the drying table 4, and blow it with the blower 5 until the surface of the magnet is completely dry.

Embodiment 2

[0022] Select the finished product of NdFeB slice processing with a size of Φ3*1mm, and put it into figure 1 Shown in the feed basket 6, and immerse in the boiled cooking tank 1 and cook the material for 20 minutes. After all the boiled products are scattered, take out the basket, put it into the ultrasonic cleaning tank 2, ultrasonically for 10 seconds, then put it into the alcohol dehydration tank 3 and dip it in alcohol for 2 seconds for dehydration; finally put it on the drying table 4, and blow it with the blower 5 until the surface of the magnet is completely dry.

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Abstract

The invention relates to a boiling method and a boiling device for NdFeB sintering. The boiling device comprises a feeding table 7, a material boiling tank 1, an ultrasonic washing tank 2, an alcohol dehydration tank 3, a drying table 4 and a charging basket 6, wherein the feeding table 7, the material boiling tank 1, the ultrasonic washing tank 2, the alcohol dehydration tank 3 and the drying table 4 are orderly arranged in above order. The boiling method comprises the following steps of 1), immersing a magnet into a boiling liquid in the material boiling tank 1, 2), putting the immersed magnet into the ultrasonic washing tank 2 and carrying out ultrasonic cleaning by clear water, 3), putting the cleaned magnet into the alcohol dehydration tank 3 and carrying out dehydration, and 4), taking out the dehydrated magnet and putting it on the drying table 4 for drying. The boiling method and the boiling device for NdFeB sintering have the advantages of simple processes, easy operation, high boiling efficiency and low energy consumption. The product obtained by the boiling method has a clean surface and no rubber residue.

Description

technical field [0001] The invention relates to a method and device for sintering NdFeB cooking material, in particular to a method and device for removing glue and oil stains attached to the surface during NdFeB processing. technical background [0002] At present, sintered NdFeB magnets are mainly processed into magnets of various sizes and shapes by machining to meet the final use requirements of users. Among them, slicing is a very common processing method for sintered NdFeB magnets. The cooking process involved in the present invention is an important auxiliary process of the slicing process, and its purpose is to remove the glue used to bond the magnet during the slicing process and the greasy dirt attached to the surface of the magnet during the machining process. [0003] The traditional cooking process uses a single cooking pot, and then uses clean water to rinse the cooking liquid on the magnet. This method is likely to cause the residual rubber and oil in the coo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/19C23G3/00H01F1/057H01F1/08
Inventor 胡静刘刚陈明蔡喆伦
Owner SANVAC BEIJING MAGNETICS