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Material for shielding sheet and preparation method thereof and shielding sheet

A shielding sheet and formula technology, applied in the field of shielding sheet materials and their preparation, can solve the problems affecting reliability and service life, the mechanical properties of shielding sheets, and the unsatisfactory electromagnetic shielding performance, and achieve the improvement of electromagnetic shielding efficiency and excellent cold working. performance, the effect of improving corrosion resistance

Active Publication Date: 2019-05-10
东莞市时运佳实业投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing shielding sheets often have problems such as unsatisfactory mechanical properties and electromagnetic shielding, which affect their reliability and service life

Method used

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  • Material for shielding sheet and preparation method thereof and shielding sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A shielding sheet material, comprising the following elements by mass percentage: 0.15% phosphorus, 1.2% iron, 4.5% tin, 0.4% aluminum, 0.1-0.15% silicon, 0.025% antimony, 0.025% bismuth, 3% magnesium, Manganese 0.5%, nickel 0.6%, zinc 45%, zirconium 0.6%, the balance is copper and unavoidable impurity elements.

[0031] Further, the mass percentage of the inevitable impurity elements is not more than 0.1%.

[0032] The preparation method of the above-mentioned shielding sheet material comprises the following steps:

[0033] (1) Weigh the copper ingot according to the formula, put it into the smelting furnace, heat it to 1200°C, then add the copper-phosphorus master alloy, stir and keep it warm for 20 minutes;

[0034] (2) Raise the temperature of the smelting furnace to 1550°C, add molten nickel, stir and keep warm for 20 minutes;

[0035] (3) Add beryllium, aluminum, silicon, antimony, bismuth, magnesium, manganese, nickel, zinc, and zirconium according to the formu...

Embodiment 2

[0046] A material for a shielding sheet, comprising the following elements by mass percentage: 0.1% phosphorus, 1.6% iron, 4.0% tin, 0.5% aluminum, 0.1% silicon, 0.03% antimony, 0.02% bismuth, 4% magnesium, and 0.4% manganese %, nickel 0.8%, zinc 4.0%, zirconium 0.7%, and the balance is copper and unavoidable impurity elements.

[0047] Further, the mass percentage of the inevitable impurity elements is not more than 0.1%.

[0048] The preparation method of the above-mentioned shielding sheet material comprises the following steps:

[0049](1) After weighing the copper ingot according to the formula, put it into the smelting furnace, heat it to 1100°C, then add the copper-phosphorus master alloy, stir and keep it warm for 20 minutes;

[0050] (2) Raise the temperature of the smelting furnace to 1500°C, add molten nickel, stir and keep warm for 20 minutes;

[0051] (3) Add beryllium, aluminum, silicon, antimony, bismuth, magnesium, manganese, nickel, zinc, and zirconium accor...

Embodiment 3

[0063] A shielding sheet material, comprising the following elements by mass percentage: 0.2% phosphorus, 1% iron, 5.0% tin, 0.3% aluminum, 0.15% silicon, 0.02% antimony, 0.03% bismuth, 2% magnesium, 0.6% manganese, Nickel 0.58%, zinc 5.0%, zirconium 0.4%, the balance is copper and unavoidable impurity elements.

[0064] The preparation method of the above-mentioned shielding sheet material comprises the following steps:

[0065] (1) After weighing the copper ingot according to the formula, put it into the smelting furnace, heat it to 1250°C, then add the copper-phosphorus master alloy, stir and keep it warm for 15 minutes;

[0066] (2) Raise the temperature of the smelting furnace to 1550°C, add molten nickel, stir and keep warm for 15 minutes;

[0067] (3) Add beryllium, aluminum, silicon, antimony, bismuth, magnesium, manganese, nickel, zinc, and zirconium according to the formula, adjust the temperature of the melting furnace to 1500°C, stir and keep warm for 15 minutes t...

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Abstract

The invention relates to the technical field of shielding sheets, and specifically relates to a material for a shielding sheet and a preparation method thereof and the shielding sheet. The material for the shielding sheet comprises the following elements in percentage by mass: 0.1-0.2% of phosphorus, 1-1.6% of iron, 4.0-5.0% of tin, 0.3-0.5% of aluminum, 0.1-0.15% of silicon, 0.02-0.03% of antimony, 0.02-0.03% of bismuth, 2-4% of magnesium, 0.4-0.6% of manganese, 0.5-0.8% of nickel, 4.0-5.0% of zinc, 0.4-0.7% of zirconium, and the balance copper and inevitable impurity elements. The prepared material for the shielding sheet is outstanding in mechanical performance, corrosion resistance and electromagnetic shielding performance; a good material is supplied to manufacture a high-performanceshielding sheet; the preparation method is simple and efficient; the operation is easy to control; the industrial production can be carried out; and the product quality is stable.

Description

technical field [0001] The invention relates to the technical field of shielding sheets, in particular to a material for shielding sheets and a preparation method thereof. Background technique [0002] With the development of science and technology and the progress of society, electronic products have played a very important role in industrial production and people's daily life. However, during the use of electronic products, the electromagnetic waves generated by electronic products radiate electromagnetic energy to the outside world, which will seriously affect the stable operation of precision instruments and have adverse effects on human health. The most effective way to reduce electromagnetic radiation is to shield electromagnetic waves. At present, electrical connectors, as an important electronic component, have been widely used in aerospace, ships, detection equipment and other fields, and shielding sheets are usually used to shield electromagnetic waves. However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/02C22C9/04C22C1/03C22F1/08
Inventor 陈柳文
Owner 东莞市时运佳实业投资有限公司
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