There is static in the production workshop, I have a good way to help you solve it
While developing business, we often receive consulting services from many customers. They encounter high static voltage during the production process. Although some customers have taken protective measures, they have not been able to solve the problem of static electricity. It is found that the customers are all guilty of something in common, but only one-sided electrostatic protection measures, or short-term persistence.
From the current production workshops in the electronics industry, it appears that many companies have continuously improved their anti-static requirements and formulated many anti-static measures. To achieve anti-static standards, companies must pass continuous inspections and monitoring, and take targeted precautions. Identify and quantify those areas that really need ESD protection, focus the investment of manpower and material resources on eliminating the source of static electricity, and at the same time confirm which areas are static safe areas, saving unnecessary expenses. Ensure the electrostatic safety of all people, turnover containers and equipment entering the EPA environment; ensure the normal and effective operation of ESD equipment.
According to years of work experience, most customers use ion fans, ion bars and other equipment to eliminate static electricity (partial elimination is a good choice), but neglect the economical electrostatic grounding. Although some factories and workshops have anti-static floors, the floors are Without grounding, workers wear cordless wrist straps, which means that static electricity is generated in the workshop and cannot be discharged. For some special work types and enterprises with high requirements for static electricity, once static electricity cannot be discharged, the consequences will be unimaginable.
The electrostatic parameters concerned in the production process include electric field strength, electrostatic potential, charge and resistivity. The amount of electric charge is an essential physical quantity of static electricity, but on-site measurement is not convenient. It is usually used to measure the electrostatic potential on the surface of the object. The measurement often uses a non-contact electrostatic voltmeter, which does not contact the object under test, so the electrostatic effect on the object under test Very small. The anti-static performance of an object can be identified by detecting its surface resistivity or volume resistivity, and the electric field strength represents the energy accumulated by static electricity in the working environment, which is very important for the determination of EPA. Commonly used testing instruments include field strength meter (also known as electrostatic voltage tester), human body comprehensive tester, surface resistance tester, etc. The *new comprehensive monitoring equipment can monitor the static electricity in the area**, and any parameter exceeds the standard That is, automatic alarm.
Detection is a necessary means of ESD control and should be carried out in real time in all links of production. Operators must test the performance of hand/ankle straps, anti-static shoes, and anti-static work clothes each time before entering the EPA; a special person must be responsible for EPA inspection and maintenance, and regularly check whether various ESD equipment, turnover containers, and grounding devices meet the requirements of anti-static equipment. The requirements of static electricity; management personnel should regularly check the anti-static grounding conditions of each work station, and if they find that they do not meet the requirements, they should make real-time rectification; the test results should be sorted and archived and checked as part of the quality management system certification.
Static protection and static elimination is a systematic project. Only by perseverance can the expected effect be achieved. The overall protection concept must be implemented, and the technologies of equalization, grounding, venting, shielding and clamping must be comprehensively used to form a complete protection system. Obvious effect.