Lithium battery shell over welding process and requirements.portable power station 1000w

　　1) The packaging connection of the shell is generally an ultrasonic plastic welding method.

　　2) Working principle: Using ultrasonic waves to generate high -frequency oscillations to friction between the upper and lower shells, the local temperature drama rises to generate high heat. The "plastic flow" of the material generated between the two adhesive parts will be solidified under pressure to form a melt.

　　3) Select the appropriate ultrasonic welding machine.

　　4) Use appropriate welding parameters: power factor: force × speed, pressure (pressure), down speed. The rate has frequency and amplitude, energy = power × time frequency: 20kHz welding time, pressure preservation time

　　5) The design of the shell and the protective board should pay attention to the size of the size to prevent it from being in place or not tight.

　　6) The thickness and component layout of the protective board should fully consider the effects of ultrasonic waves to prevent the components from being shaken.

　　7) The effects of the welding effect are: plastic materials, welding design, molds, etc.

　　8) Super welding quality: no over -injury, no melting gum, no high, uniform welding line, tight melting, the sample fell to the wooden board at a height of 1M, and the X, Y, and Z faces fell once each (six times in total). Require.

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