Main components of the anti static chair and test methods


Anti-static chair has the characteristics of comfortabl […]

Anti-static chair has the characteristics of comfortable texture, breathable heat dissipation, impact resistance, corrosion resistance, wear resistance and fission resistance. It is widely used in laboratories, electronic production workshops and dust-free workshops. It is an essential tool for working in static sensitive areas. Today, I will introduce you to the test method of the anti-static chair.
The anti-static chair is mainly composed of three parts, namely a backrest, an ESD seat cushion and a metal fitting, etc., which not only has very good electrostatic discharge performance, but also can effectively discharge static electricity to the ground. In order to ensure that the dust-free studio meets the standard requirements, strict anti-static chair materials should be tested for dust and ionic contamination. The test standards for anti-static chairs are based on the application of electronic products and the anti-static testing specifications of the manufacturing system. The test methods are as follows:
1. The test position between the backrest and the seat surface should be correct. The point-to-point resistance test method should meet the corresponding specifications.
2, the system resistance test between the caster and the chair surface should also meet the corresponding requirements. When testing the anti-static chair, a conductive plate with a certain size should be placed under the caster, and the contact is good; one seat is in good contact, another One electrode is in contact with the conductive plate.
3. Point-to-point resistance and system resistance test. The electrode material used should be copper or stainless steel. The electrode structure used should meet the size requirements. The hardness, thickness and volume of the material at the contact end of the electrode should meet the requirements.
When testing the resistance of the anti-static chair point-to-point, place the material in actual use or on the insulating surface. The volume resistance and surface resistance of the countertop must meet the requirements, and the distance between the electrodes should also meet the requirements.
The test method of the anti-static chair is introduced here. If the anti-static chair meets the requirements of the standard after the test, it can be used. If it does not meet the relevant requirements after the test, it cannot be applied. In the event of an accident, reproduce the product that does not meet the requirements.

Views: 797