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NFC magnetic substrate forming and manufacturing method based on roll forming process

A magnetic substrate and film rolling technology, which is applied in the field of near field communication, can solve the problems of cracking, difficult forming and cracking of the casting sheet, and achieves the effects of low preparation cost, short preparation period and simple process.

Active Publication Date: 2015-03-25
成都佳驰电子科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, tape casting is the most commonly used in the molding of ceramic substrates. During the subsequent drying process of the substrate slurry, due to the volatilization of water, the bridges in the system break, resulting in cracking of the cast sheet, and the higher the solid content of the slurry , the cracking phenomenon is more serious
[0007] The NFC magnetic substrate is a new structure that has just appeared in the ceramic substrate. Because the thickness of the NFC magnetic substrate is required to be very thin, it is difficult to form. At present, the existing domestic patents and related articles have not proposed the forming method of the NFC magnetic substrate.

Method used

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  • NFC magnetic substrate forming and manufacturing method based on roll forming process

Examples

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Comparison scheme
Effect test

Embodiment 1

[0033] A method for forming and preparing NFC magnetic substrates based on rolling film technology, characterized in that: it comprises the following steps:

[0034] S1. Ingredients: Mix the powder and binder evenly according to the weight ratio of 10:1 to form a slurry;

[0035] S2, mixing: using a three-roll mixer for mixing, specifically including the following steps:

[0036] S21, open the three-roll mixer, adjust the rotating speed to be 5r / min, add the slurry obtained in step S1 to the roll of the three-roll mixer in operation with a shovel;

[0037] S22. Place the material receiving barrel at the discharge port, and use a spatula to shovel the slurry on the scraper at the discharge port into the material receiving container;

[0038] S23, rolling 10 times according to steps S21 and S22, so that the binder and powder are fully and evenly distributed;

[0039] S3. Start training: use a two-roll mill to start training, which specifically includes the following steps:

...

Embodiment 2

[0056] A method for forming and preparing NFC magnetic substrates based on rolling film technology, characterized in that: it comprises the following steps:

[0057] S1. Ingredients: mix the powder and binder evenly according to the weight ratio of 10:2 to form a slurry;

[0058] S2, mixing: using a three-roll mixer for mixing, specifically including the following steps:

[0059] S21, open the three-roll mixer, adjust the rotating speed to be 7r / min, add the slurry obtained in step S1 to the roll of the three-roll mixer in operation with a shovel;

[0060] S22. Place the material receiving barrel at the discharge port, and use a spatula to shovel the slurry on the scraper at the discharge port into the material receiving container;

[0061] S23, according to steps S21 and S22, rolling and rolling 8 times, so that the binder and powder are fully and evenly distributed;

[0062] S3. Start training: use a two-roll mill to start training, which specifically includes the followin...

Embodiment 3

[0079] A method for forming and preparing NFC magnetic substrates based on rolling film technology, characterized in that: it comprises the following steps:

[0080] S1. Ingredients: mix the powder and binder evenly according to the weight ratio of 10:2 to form a slurry;

[0081] S2, mixing: using a three-roll mixer for mixing, specifically including the following steps:

[0082] S21, open the three-roll mixer, adjust the rotating speed to be 10r / min, add the slurry obtained in step S1 to the roll of the three-roll mixer in operation with a shovel;

[0083] S22. Place the material receiving barrel at the discharge port, and use a spatula to shovel the slurry on the scraper at the discharge port into the material receiving container;

[0084] S23, according to steps S21 and S22, rolling and rolling 8 times, so that the binder and powder are fully and evenly distributed;

[0085] S3. Start training: use a two-roll mill to start training, which specifically includes the followi...

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Abstract

The invention relates to an NFC magnetic substrate forming and manufacturing method based on a roll forming process. The NFC magnetic substrate forming and manufacturing method based on the roll forming process includes the following steps of S1, burdening, wherein powdery materials and adhesives are mixed evenly according to a proportion, and slurry is formed; S2, mixing which is carried out through a three-roller mixing mill; S3, open milling which is carried out through a two-roller open mill to form a blank; S4, rough rolling, wherein the blank is arranged on a roughing mill, rolling is carried through folding, reversing and repetition, and thick blank pieces are formed; S5, intermediate rolling which is carried out through two cascade connection intermediate rolling mills; S6, finish rolling which is carried out through two two-roller roll forming machines in a cascade connection mode; S7, film cutting; S8, stacking, wherein magnetic substrate semi-finished products are screened, every three magnetic substrate semi-finished products meeting requirements are arranged in a circulation box as a layer, and the layers are separated through foam. The NFC magnetic substrate forming and manufacturing method based on the roll forming process has the advantages of being simple in process, easy to operate, short in manufacturing period and low in manufacturing cost, realizing industrial production, and providing good semi-finished products for the subsequent sintering procedure of NFC magnetic substrates.

Description

technical field [0001] The invention relates to the field of near field communication (NFC, Near Field Communication), in particular to a method for forming and preparing an NFC magnetic substrate based on a rolling film process. Background technique [0002] Since the emergence of near-field communication (NFC) technology, it has attracted wide attention due to its advantages such as wide transmission bandwidth, high security, and low energy consumption. At present, NFC technology is widely used in fields such as mobile payment, electronic access control, electronic tag and wireless charging. During the communication process, the metal parts in the device will interfere with the NFC antenna, causing the electromagnetic waves emitted by the NFC antenna to be absorbed by the metal to generate eddy current loss, thus affecting the normal operation of the NFC antenna. [0003] In order to shield the influence of metal, it is necessary to place a magnetic substrate between the ...

Claims

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Application Information

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IPC IPC(8): B28B3/12B28B17/02
CPCB28B3/12B28B17/026
Inventor 邓龙江谢海岩谢建良梁迪飞张宏亮陈良阙智勇
Owner 成都佳驰电子科技股份有限公司