Ultrasonic welding machine quality appraisal

ultrasonic welding machine uses a high-frequency oscillator to convert electrical energy into mechanical vibration, forming a small amplitude vibration on the contact surface between the welding head and the workpiece, putting the workpiece under high stress. This will cause the molecular layer on the surface of the workpiece to separate and form physical and chemical effects, thereby achieving an efficient and precise technology for metal welding.
ultrasonic welding machine is a device that uses heat generated by high-frequency vibration to weld two plastic or metal parts together. It can be used on different types of materials, such as plastics, metals, glass and ceramics, etc., and is widely used in automobile manufacturing, electronic equipment, packaging industry and other fields.
In the case of ultrasonic welding machine quality appraisal, Zhongke Testing can provide ultrasonic welding machine quality appraisal services.

1, divided according to the use: single-sided, double-sided and three-sided;
2, divided according to the structure: desktop, vertical, portable, fixed and other types.

GB/T 25776-2010 Welding material welding process performance evaluation method
GB 9448-1999 Welding and cutting safety
GB/T 37778-2019 Recommended process specifications for stainless steel laser welding
GB/T 23570-2009 Metal cutting machine tool weldments General technical conditions
GB/T 25313-2010 Welding equipment electromagnetic field detection and evaluation criteria
GB/T 19866-2005 General principles for welding process regulations and evaluation
GB/T 40371-2021 Gas welding equipment Materials for welding, cutting and related process equipment

After the components of 200 ultrasonic welding machines purchased by a heavy industry company were installed into the KN95 mask machine production line, they were unable to produce KN95 masks continuously, stably, and normally. They did not meet the technical requirements agreed in the agreement, and a dispute arose with the equipment manufacturer.
was entrusted by the court to conduct an appraisal and analysis on "whether the components of the ultrasonic welding machine involved in the case can continuously, efficiently and stably produce qualified N95 masks (the ear straps of the mask can withstand a tensile force of two kilograms; the welded part is equivalent to the strength of the original material)."
identification analysis results: The
identification analysis expert group discussed the relevant information and on-site investigation of the ultrasonic welding machine involved and conducted a comprehensive quality and technical analysis, and made the following suggestions and conclusions:
1, all three production lines can produce continuously and stably;
2, the production efficiency of production line 1 is 26% lower than that of production line 3, and the production efficiency of production line 2 is 22% lower than that of production line 3;
3, production lines 1 and 2 are The knurling and edge pressing of the N95 masks produced do not meet the process requirements of N95 masks. The knurling and edge pressing of the N95 masks produced by production line 3 meet the process requirements of N95 masks. The ear strap tension of
4 and the N95 masks produced by production lines 1 and 2 do not meet the requirements. It complies with the requirements of Article 5.9 of GB2626-2019 "Respiratory Protection Self-priming Filtering Anti-Particulate Respirator"; the ear strap tension of the N95 masks produced by production line 3 meets the requirements of Article 5.9 of GB2626-2019 "Respiratory Protection Self-priming Filtering Anti-Particulate Respirator".