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Shielding coating and vacuum plating

TIME:2019-11-22View:425

I. performance advantages:

 

Shielding coating: stable conductivity, wide coverage, can meet the requirements of customers, can pass the test of testing institutions, many high-end products are shielded by shielding coating.

 

Vacuum plating: poor conductivity, poor coverage, such as corner, column and other places can not be electroplated, so it can not achieve a very ideal shielding effect.

 

2. Technical advantages:

 

Shielding coating: the shielding technology is relatively mature with a history of more than 60 years. It was first introduced from western countries and recognized by western countries. It is widely used in the electronic industry. It has passed ROHS certification, providing guarantee for the export of high-end products.

 

Vacuum plating: relatively weak shielding effect, unable to resist strong electromagnetic wave.

 

III. advantages of operation process:

 

Shielding coating: simple process, simple operation, low initial cost, fast proofing speed, in principle (2 working days) can be submitted to the sample. Generally, the personnel who know the fuel injection technology can operate according to the operation process provided by our company, and the initial investment without spraying equipment is not large.

 

Vacuum plating: the process and operation are relatively complex, and the operators have to go through very professional training. The equipment of vacuum plating is also more expensive, the production cost of fixture is high, and the production cycle is long.

 

4. National policy tendency:

 

Environmental protection products are the international trend, the national policy trend is inclined to environmental protection, shielding coating metal coating, no harmful chemical composition, production and operation safety is harmless to human body, is a kind of scientific and technological environmental protection coating. High end products exported to western countries (especially European and American countries) are generally required to be adopted.

 

Vacuum plating: it is not environmentally friendly, pollution discharge causes damage to the environment, and production operation causes physical injury to workers.

 

V. cost advantages:

 

Shielding coating: it can be opened as many as necessary according to the amount required for production. It can not be saved. There is little waste in operation. The qualified rate is high (the qualified rate is up to 98%). Even if there are defective products, they can be reworked and re sprayed, and they will not be scrapped. The material requirements are not high, so the production cost is low.

 

Vacuum plating: it's a mass production operation. It's difficult to grasp how much material is wasted. With a high scrap rate (up to 15%), defective products can't be reworked and can only be scrapped. The material requirements are high and the comprehensive cost is relatively high.

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