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Tungsten alloy shielding plate and electronic information card provided with tungsten alloy shielding plate

An electronic information card and tungsten alloy technology, applied in the field of electronic information cards, can solve problems such as illegal reading of magnetic track information, bank card information leakage, cardholder fund theft, etc., to prevent illegal reading or interference, thin thickness , Avoid the effect of funds being stolen

Active Publication Date: 2019-01-25
GUANGDONG HUASITE ALLOY PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For electronic information cards, such as bank cards, especially bank cards with magnetic stripe media, the magnetic track information is easy to be illegally read, resulting in bank card information leakage and bringing the risk of fund theft to cardholders

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The tungsten alloy shielding plate in this embodiment includes components by mass percentage: 90% tungsten, 6% nickel, 3% copper, 0.5% cobalt, and 0.5% rare earth. Among them, tungsten, nickel, copper, and cobalt are respectively tungsten powder, nickel powder, copper powder, and cobalt powder.

[0019] The preparation method of the above-mentioned tungsten alloy shielding plate is as follows: in terms of mass percentage, pour 90% tungsten, 6% nickel, 3% copper, 0.5% cobalt, and 0.5% rare earth into the container, and then place it in a vacuum heating furnace for drying treatment , the drying temperature was 75°C, the vacuum degree was 5 Pa, and the drying time was 30 minutes to obtain a dry powder; the prepared dry powder was mixed in a ball mill for 10 hours to obtain a mixed powder; the prepared mixed powder was poured into In the compression mold, flatten, perform compression molding treatment, demould, and obtain a tungsten alloy powder metallurgy green body; put t...

Embodiment 2

[0028] The tungsten alloy shielding plate in this embodiment includes components by mass percentage: 94% tungsten, 3% nickel, 2% copper, 0.5% cobalt, and 0.5% rare earth. Among them, tungsten, nickel, copper, and cobalt are respectively tungsten powder, nickel powder, copper powder, and cobalt powder.

[0029] The preparation method of the above-mentioned tungsten alloy shielding plate is: in terms of mass percentage, pour 94% tungsten, 3% nickel, 2% copper, 0.5% cobalt, and 0.5% rare earth into a container, and then place it in a vacuum heating furnace for drying treatment , the drying temperature was 75°C, the vacuum degree was 5 Pa, and the drying time was 30 minutes to obtain a dry powder; the prepared dry powder was mixed in a ball mill for 10 hours to obtain a mixed powder; the prepared mixed powder was poured into In the compression mold, flatten, perform compression molding treatment, demould, and obtain a tungsten alloy powder metallurgy green body; put the prepared g...

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Abstract

The invention discloses an electronic information card provided with a tungsten alloy shield plate. The electronic information card comprises an electronic information card substrate and the tungsten alloy shield plate arranged in the electronic information card substrate; the electronic information card substrate comprises a chip and / or a magnetic strip; the tungsten alloy shield plate comprises the following components in mass percentage: 30%-98% of tungsten, 1.23%-40% of nickel, 0.53%-27% of copper, 0.24%-3% of cobalt and 0.1%-1.0% of rare earth. The invention further discloses the tungsten alloy shield plate. According to the tungsten alloy shield plate and the electronic information card provided with the same, the tungsten alloy shield plate with an excellent radiation-proof property is arranged in the electronic information card, so that information in the electronic information card can be prevented from being read or interfered.

Description

technical field [0001] The invention relates to a tungsten alloy shielding plate and an electronic information card provided with the tungsten alloy shielding plate. Background technique [0002] Tungsten alloys are alloys composed of tungsten-based alloys and other elements, including molybdenum-tungsten alloys, niobium-tungsten alloys, and tungsten-cobalt alloys. Among metals, tungsten has the highest melting point, high specific gravity, good high temperature strength, creep resistance, thermal conductivity, and electrical conductivity. Tungsten and its alloys are widely used in electronics, electric light sources, aerospace, weapons and other industries. For tungsten alloy products, powder metallurgy is the main method for manufacturing tungsten alloy products. [0003] For electronic information cards, such as bank cards, especially bank cards with magnetic stripe media, the magnetic track information is easily read illegally, resulting in bank card information leakage...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C27/04C22C30/02G06K19/073G06K19/077G06K19/06
CPCC22C27/04C22C30/02G06K19/06187G06K19/07318G06K19/0772
Inventor 温浩月
Owner GUANGDONG HUASITE ALLOY PROD CO LTD
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