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This process works through the translation of AC current into mechanical vibrations using piezo-electric ceramics. The vibrations are then passed through the part to the joint at which point they cause stress and strain in the contact area between the two parts which leads to localized heating and melting of the polymer. Ultrasonic welding typically has weld times from one-tenth to two seconds and our ultrasonicwelding equipment can handle parts from approximately one-eighth inch diameter at high frequencies up to twelve inches square at low frequencies. Plastic Welding Machine
1. We have 15 Khz 20 Khz 28 Khz 35 KW 40 Khz ultrasonic plastic welding machine for different welding size and material
2. We have hand held spot welder, rotary model welder and slding table welder if needed.
3. PLS provde us the folliwing:
Size?
Material?
Image?
Main Features
1. True Digital Autotune- Provides fully-automatic tuning
2. Weld by time, energy, peak power, ground detect
3. Available in 2 frequencies – 15 Khz, 20 Khz
4. Increased power levels
5. Amplitude Stepping for optimization of weld strength and appearance
6. Built-in digital amplitude control - for fine tuning of critical applications
7. Various welding modes providing maximum flexibility, A range of welding modes enable
optimum ultrasonic processing of plastic parts.
8. Quick application changeover, high welding seam strength
9. Suitable for high cadences and short cycle times
10. Systems Protection Monitor (SPM) Five levels of power supply protection are provided:
1) phasing, 2) over voltage, 3) over current, 4) over temperature, 5) power.
Process of Ultrasonic Plastic Welding Machine
Step 1 - Parts in fixture
The two thermoplastic parts to be assembled are placed together, one on top of the
other, in a supportive nest called a fixture.
Step 2 - Horn contact
A titanium or aluminum component called a horn is brought into contact with the
upper plastic part.
Step 3 - Pressure applied
A controlled pressure is applied to the parts, clamping them together against the
fixture.
Step 4 - Weld time
The horn is vibrated vertically 20,000 (20 kHz) or 40,000 (40 kHz) times per second, at distances measured in thousandths of an inch (microns), for a predetermined amount of time called weld time. Through careful part design, this vibratory mechanical energy is directed to limited points of contact between the two parts. The mechanical vibrations are transmitted through the thermoplastic materials to the joint interface to create frictional heat. When the temperature at the joint interface reaches the melting point, plastic melts and flows, and the vibration is
stopped. This allows the melted plastic to begin cooling.
Step 5 - Hold time
The clamping force is maintained for a predetermined amount of time to allow the
parts to fuse as the melted plastic cools and solidifies. This is known as hold time.
(Note: Improved joint strength and hermeticity may be achieved by applying a
higher force during the hold time. This is accomplished using dual pressure.)
Step 6 - Horn retracts
Once the melted plastic has solidified, the clamping force is removed and the horn
is retracted. The two plastic parts are now joined as if molded together and are
removed from the fixture as one part.
Adsvantages of Ultrasonic plastic welding machine
Plastics assembly is a fast, clean, efficient, and repeatable process that consumes very little energy. No solvents, adhesives, mechanical fasteners, or other consumables are required, and finished assemblies are strong and clean.
Machine Parts
Name: ultrasonic welding machine for LED flashlight
Brand: Jiazhao
Original: China
Domestic famous engines, strong driving force, low fuel consumption, high economic benefits .
Main Features
Name:ultrasonic welding machine for LED flashlight
Brand: Jiazhao
Original: China
Domestic famous engines, strong driving force, low fuel consumption, high economic benefits .
Machine Parts
Name: ultrasonic welding machine for LED flashlight
Brand: Jiazhao
Original: China
Domestic famous engines, strong driving force, low fuel consumption, high economic benefits .
Main Features
Name: ultrasonic welding machine for LED flashlight
Brand: Jiazhao
Original: China
Domestic famous engines, strong driving force, low fuel consumption, high economic benefits .
Pre-Sales Service
* Inquiry and consulting support.
* Sample testing support.
* View our Factory.
After-Sales Service
* Training how to instal the machine, training how to use the machine.
* Engineers available to service machinery overseas.
Products Name with link
91.8% Response Rate
Products Name with link
91.8% Response Rate
Products Name with link
91.8% Response Rate
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