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Debugging methods of ultrasonic welding machine

发布者： 发布时间：2016/5/12

First, ultrasonic welding, the shift of how to do?

"Solution"
1 reduce the welding pressure.
2 the bottom die heightening, making it more than the weld line more than 2mm.
3 using ultrasonic conductive fusion.
4 upper die (HRON) press to the product to send vibration.
5 modification of plastic products, enhanced positioning.




Two, ultrasonic welding, the production of scars (broken, cracked, burns) how to do?
"Solution"
1 lower pressure.
2 to reduce the delay time (early vibration).
3 reduce the welding time.
4 reference media coverage (such as PE bags).
5 mold surface treatment (hardening or chrome).
6 reduce the number of machine segments or the expansion ratio of the upper die.
7 easy to shatter or broken products, fixture should be made such as buffer, soft resin or covered cork etc. (this refers to does not affect the melting
Bonding strength.
8 easy to break the product at the right angle and R angle.




Three, ultrasonic welding, deformation and distortion found how to do?
"Solution"
1 lower the pressure (preferably below 2kg).
2 reduction of ultrasonic welding time (reduction of strength standard).
3 increase the hardening time (at least 0.8 seconds or more).
4 the analysis of the ultrasonic up and down mode can be partially adjusted (non essential).
5 the main reason for the analysis of the main causes of deformation, to be improved.




Four, ultrasonic welding, internal parts damage how to do?
"Solution"
1 early ultrasonic vibration time (to avoid contact with the vibration).
2 reduce the pressure, reduce the ultrasonic welding time (reduce the intensity of the standard).
3 reduce the number of machine power or small power station.
4 to reduce the ultrasonic mold expansion ratio.
5 bottom mould cushion cushion rubber.
6 bottom mold and products to avoid suspension or clearance.
7.HORN (upper die) escape hole after the test frequency.
8 on the die after the hole is affixed with a flexible material (such as Si Li Kang).




Five, ultrasonic welding, products found how to do flash or flash?
"Solution"
1 reduce the pressure, reduce the ultrasonic welding time (reduce the intensity of the standard).
2 reduce the number of machine power or small power station.
3 to reduce the ultrasonic mold expansion ratio.
4 using ultrasound machine to fine tune positioning and fixing.
5 modified ultrasound-guided fuse.




Six, ultrasonic welding, found that the product size is not stable, how to do?
"Countermeasures"
1 increase the safety factor of welding joint (in order to meet the time, pressure and power).
2 enable fine-tuning of the fixed screw (should be controlled to 0.02mm).
3 check the output power of the ultrasonic mode is enough (enough to increase the number of segments).
4 inspection fixture positioning and product tolerance is stable together.
5 modified ultrasound-guided fuse.




Seven, ultrasonic welding, always one-sided burns how to do?
"Analysis"
Ultrasonic vibration welding is not simply linear longitudinal vibration (bending and lateral vibration is not discussed here), but the formation of cross
The cross type longitudinal down vibration, and the output of the upper mode ultrasonic output is also a certain degree of distribution points, pressure, voltage, machine
Although the stability of the power output energy is determined, the energy distribution points also show a proportional increase or decrease.
The product is always a single point burn, that is, the point of the output energy and the product of the point of the formation of the corresponding stress, at this time if the change of ultrasonic vibration
The contact point of the moving surface can be improved by the heat energy cluster production.
"Solution"
1 this method is only applicable to the plane model.
2 mold surface treatment (chrome plating or hardened anode) - still invalid.
3 covering plastic bags - is still not effective.
4 upper mode rotation 180 degrees.



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