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Metal mixed powder and contact processing method for mobile phone antenna contacts

A technology of mixed powder and mobile phone antenna, applied in metal material coating process, coating, fusion spraying, etc., can solve the problems of high welding difficulty, large difference in melting point, small conduction resistance, etc., and achieve stable mobile phone signal transmission , to meet the effect of stable transmission and small on-resistance

Inactive Publication Date: 2019-04-12
惠州春兴精工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most mobile phone antenna signal contact points on the market are mainly connected by welding gold-plated copper sheets at the antenna contact positions, and then the gold-plated copper sheets are connected to the main board feeder. The main shape of the contacts is spherical, and the contact area of ​​this contact is Smaller, larger on-resistance, more complex processing technology, higher cost, and because of the large difference in melting point of the material, the welding difficulty is higher, and it is easy to cause the risk of gold-plated contacts falling off
At present, there is no process of processing mobile phone antenna contacts by spraying in the market. If you can find a group of metal mixed powders, which have good electrical conductivity and can be well combined with mobile phone antenna materials, you can use spraying. The method of processing mobile phone antenna contacts reduces the processing cost, and because the contact form is surface contact, the conduction resistance is small, which can meet the signal transmission quality requirements

Method used

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  • Metal mixed powder and contact processing method for mobile phone antenna contacts
  • Metal mixed powder and contact processing method for mobile phone antenna contacts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A metal mixed powder used for mobile phone antenna contacts, the parts by weight of the components contained in it are shown in Table 1.

[0028] Table 1

[0029]

[0030] The production method of the metal mixed powder used for mobile phone antenna contacts: (1) mix various metal powder components, and use a drum mixer to stir evenly; (2) dry at 100±2°C for 5 to 6 hours to obtain a metal powder Mix powder. Each component selects metal powder with a particle size of 20-50 microns.

Embodiment 5

[0032] A method for processing a mobile phone antenna contact, comprising the following steps:

[0033] (1) Paste a protective film on the mobile phone case or fix the mobile phone case on a shielding fixture, and the protective film or shielding fixture will cover the area on the mobile phone case that has not been sprayed, exposing the contact pattern area that needs to be sprayed;

[0034] (2) thermally spray the metal mixed powder used for the antenna contact of the mobile phone onto the contact pattern area to form a contact coating; the metal mixed powder used in this example is the metal mixed powder prepared in Example 1;

[0035] (3) Remove the protective film or masking fixture.

[0036] The thermal spraying heating temperature is 1500°C, and the coating thickness is 0.3um.

Embodiment 6

[0038] A method for processing a mobile phone antenna contact, its processing steps and conditions are the same as in Example 5, the difference is that the metal mixed powder used for the mobile phone antenna contact described in this embodiment is the obtained embodiment 2 for the mobile phone antenna contact Dots of mixed metal powder.

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Abstract

The invention discloses metal mixed powder for a mobile phone antenna contact and a contact machining method. The metal mixed powder comprises, by weight, 7-10 parts of copper powder, 0.1-2 parts of aluminum powder, 0.1-1 part of zirconium powder and 0.1-0.5 part of nickel powder. The metal mixed powder is subjected to high-temperature fusing and sprayed to a mobile phone antenna circuit, after being cooled, the metal mixed powder forms a contact coating, the binding force of the contact coating with a mobile phone antenna material is high, the cost is low, excellent conduction is achieved, and stable transmission of mobile phone signals can be met.

Description

technical field [0001] The invention relates to the field of mobile phone processing, in particular, the invention relates to a metal mixed powder used for mobile phone antenna contacts and a contact processing method. Background technique [0002] The mobile phone antenna is the device used to receive and transmit signals on the mobile phone. The radio frequency signal power output by the radio transmitter is transmitted to the antenna through the feeder, and radiated by the antenna in the form of electromagnetic waves. After the electromagnetic wave reaches the receiving location, it is followed by the antenna and sent to the radio receiver through the feeder. It can be seen that the antenna is an important radio device for transmitting and receiving electromagnetic waves, and there is no radio communication without the antenna. There are contacts on the antenna, and the antenna is connected to the feeder of the main board through the contacts. The connection between the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00C22C9/01C22C9/06C22C9/00C23C4/08C23C4/02C23C4/123
CPCB22F1/0003C22C9/00C22C9/01C22C9/06C23C4/02C23C4/08
Inventor 王金鑫
Owner 惠州春兴精工有限公司
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