Quality appraisal of automatic wiping equipment

automatic wiping equipment is based on the core principle of high-precision motion control and cleaning media synergy. By optimizing wiping pressure, stroke repeatability and cleaning media supply stability, it achieves synergy between surface cleanliness, damage-free wiping and efficiency. It is widely used in the field of high-cleanliness cleaning of semiconductor wafers, optical lenses, display panels and medical equipment. In wafer manufacturing, it is used to remove nano-sized particles; in OLED screen cleaning, it meets the scratch-free wiping needs of curved screens; in the field of medical devices, it ensures bioburden control on sterile surfaces. Compared with traditional equipment, automatic wiping equipment has the characteristics of multi-axis linkage, intelligent adjustment and environmental compatibility, and is the core equipment of high-precision cleaning process.

Zhongke Testing is a product quality appraisal service organization registered with the court. It can provide quality appraisal services for automatic wiping equipment. It has a professional appraisal team and advanced instruments and equipment to provide fair and accurate appraisal results for the quality appraisal of automatic wiping equipment.

As cleaning standards become stricter, related quality dispute cases have increased significantly. The judicial dispute focuses on:

1, performance index dispute: excessive particle residue, wipe scratch rate;

2, material defects: insufficient hardness of the wiping head material, and failure of the antistatic performance of the conveyor belt;

3, process problems: pressure control fluctuations, visual positioning errors;

4, contract performance disputes: core modules (such as imported servo motors, high-precision flow sensors) are inconsistent with the technical agreement.

1, equipment appearance inspection

conducts a comprehensive inspection of the appearance of the equipment, including the overall structure of the equipment, installation of parts, surface coating, etc. Check for obvious damage, deformation, corrosion, etc., which may affect the performance and service life of the equipment.

2, mechanical performance testing

detects the mechanical properties of the equipment, such as movement accuracy, transmission efficiency, vibration, etc. Through professional testing equipment and methods, evaluate whether the mechanical performance of the equipment meets contract requirements and industry standards.

3, electrical performance testing

A panel factory of the applicant signed an "OLED curved screen wiping machine purchase contract" with an equipment manufacturer of the respondent, and the scratch rate was agreed to be ≤0.5%. After being put into production, the scratch rate reached 3%. The manufacturer argued that it was caused by excessive dust in the operating environment.

Identification analysis results:

The quality analysis expert group discussed and comprehensively analyzed the relevant information of "automatic wiping equipment", contract technical agreements, on-site investigation case materials and other data, and made the following quality analysis opinions:

The wiping head pressure fluctuation of the automatic wiping equipment involved in the case is ±15% (agreement ±5%), and the material hardness is HV 700 (protocol ≥ 1000); visual positioning repeatability accuracy ±0.15mm (protocol ±0.05mm), resulting in local overvoltage.

The appraisal conclusion concluded that equipment control accuracy and material defects are the main causes of scratches.

Automatic wiping equipment quality appraisal report should include:

1, appraisal purpose (such as product defect attribution, technical compliance verification) and reference standards;

2, involved equipment model, control system version, process parameter record;

3, detection method and equipment List (such as particle counters, white light interferometers);

4, analysis of detection data and failure correlation (such as the impact of pressure fluctuations on scratches);