How to check the appearance quality of electronic components

There are many electronic components, such as resistors, capacitors, chips, diodes, transistors and so on. Electronic components are also used in a wide range of fields, such as thyristors (SCR), inductor coils, transformers, crystal oscillators, earphones, resistors, capacitors, etc., all of which use electronic components. Any product in production will produce some bad appearance, electronic components are certainly no exception. So, how to check the appearance quality of electronic components?

How to check the appearance quality of electronic components?

When identifying and testing electronic components, the following operations shall be carried out:

1. The model, specification, manufacturer and origin of the components must meet the design requirements, and the outer package must be intact.

2, the electrode lead of electronic components should be free from pressure folding and bending, and the coating should be intact and smooth, without oxidation corrosion.

3, check the appearance of electronic components must be intact, the surface has no dents, scratches, cracks and other defects, such as coated components must not fall off and scratch.

How to check the appearance quality of electronic components

4. The model and specification marks on the electronic components should be clear and complete, and the color position and color should meet the standards. The characters on the integrated circuit should be carefully checked.

5. The size of the components of the mechanical structure should be qualified, the thread should be flexible, and the rotation feel should be appropriate.

6, switch components flexible operation, feel good; Connectors should be suitable for tightness and good contact.

Components in various electronic products have their own characteristics, and the inspection content should be determined according to the specific requirements of each component.

Ii. Recommendation of appearance testing equipment for electronic components

General electronic components need to detect various external concave and convex, especially the so-called coign, burrs, etc. The concave and convex, if is the human eye detection, can appear all sorts of problems, such as a person's state of mind, emotion has a direct influence on later appearance test the accuracy of the result in product defective rate rise, or is some defects in the human eye detection not to come out, Therefore, it is necessary to use appearance inspection equipment to achieve this. The following is the recommendation of appearance inspection equipment for electronic components.

1, CCD automatic vision detection equipment

CCD automatic visual inspection equipment, in the detection of inductance, the detection efficiency is very high, the detection accuracy is also very high. CCD automated visual inspection equipment, the appearance of the electronic components can be directly extracted, when judging appearance image available, from the appearance of the image to identify the first area, according to the first region to test the appearance of the image, a key generation, test results of electronic components, good product and bad product separated automatically, solve the problem of product quality to a great extent.

2. One-key measuring instrument

The one-key measuring instrument is also independently developed by Ruizhi Optoelectronics, mainly for sampling detection of electronic components, which can achieve large quantities of small range sampling, and is also a reduced version of CCD automatic detection equipment.

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