MP-SONIC Technology

MP-SONICMP-SONIC is devoted in R&D technology for welding & cutting, including ultrasonic plastic welding,ultrasonic metal welding, ultrasonic cutting & punching, vibration plastic welding, infrared plastic welding,laser plastic welding, hot plate plastic welding, spin plastic welding, as well as technique to realize industrialproduction in mechanization, intelligence & automation.

I. Plastic welding:

II. Ultrasonic Technology:

Thermoplastic jointing normally including thermal type, mechanical type & electromagnetic type. Thermal typeplastic welding is kinds of external methods, consists of hot gas welding, hot wedge welding, extrusion welding,hot plate welding, infrared welding and laser welding. Mechanical type is a kinds of internal plastic weldingmethods, which consists of ultrasonic welding, vibration welding and stir welding. Electromagnetic type is aother kinds of internal plastic method, which mainly consists of resistance / implant / electrofusion welding,induction welding, dielectric welding, microwave welding, etc. Read More››

PLASTICPLASTIC WELDINGWELDING, as a method of plastic parts assembling, applying the common thermoplasticjointing principle，by which two molten thermoplastic parts become re-solidified to achieve jointingunder pressure. Comparing to screw fixing assembling, thermoplastic welding is in advantage ofair-tightness, and comparing glue sticking, it is in advantage of high joining strength and highproduction ratio, etc.

What is ultrasonic?Normally, the audible frequency of sound to human is from 16KHz to 20KHz, thuswe name sound in frequency over than 20KHz as ultrasonic (or ultrasound).However, most animals is more sensitive to sound than human, such as cat whichcan hear sound in about 64KHz. Reported by “Biology Report”on internet, mostkinds of moth can hear sound in frequency as high as 300KHz, then it says thatmoth has the most sensitive ear. So far as we know that the bat can make sound infrequency about 212KHz,which is more than ten times of that human can hear.The sound made by bat is in ultrasound frequency area. Read More››

III. Vibration Plastic Welding Technology：VibrationVibration welderwelder use the friction between two thermoplastic connecting parts to melt the plastic, thisheat energy comes from the back and forth movement at a certain displacement or amplitude of one Parton another parts’ surface. Once the expected welding extend is reached, the vibration stops with certainpressure still on two Parts, which can cool and solidify the welding part and bond firmly in the end. Duringvibration welding, one part half is held stationary in a holding fixture while the other part half is frictionallyvibrated against it on a linear plane at 150-250Hz under carefully controlled pressure, creating frictional heatat the joining surfaces.

Some of the vibration welding advantages are: Ability to weld parts in big measurement . short cycle times. Compatible with most thermoplastics. Ability to weld several dissimilar materials. No consumables, fumes or emissions. Low cost, quick change tooling.Read More››

IV. Laser Plastic Welding Technology：LaserLaser plasticplastic joiningjoining is a kind of transmission welding technology, which applies laser beam with highenergy to melt two plastic parts to finish joining under pressure. For laser plastic welding, one parts must bewith at least 17% IR (infra-red light) transmittance while the other one must be IR absorptive or coating atthe interface to be IR absorptive. During laser plastic welding, the two parts are close under pressure whilethe laser beam is moving along the joining line in fixed speed. The laser beam passes the transmissible partand be absorbed by the other parts at the welding interface to generate heat and soften the two parts atthe interface, then permanent plasticLaser systems have the following advantages in joining of plasticmaterials: Cleaner than adhesive bonding No micro-nozzles to get clogged No liquid or fumes to affect surface finish No consumables Higher throughput Can access work-piece in challenging geometry High level of process controlRead More››

V. Infrared Plastic welding technology;InfraredInfrared weldingwelding, as a thermal type plastic joining, is a non-contactthermal welding technique achieving strong and air-tight welding tothermoplastic parts. It realizes thermoplastic welding applying infraredradiation, which is a kind of electromagnetic radiation transmittedultra-high energy in light speed. During infrared plastic joining, twoplastic halves are held by jigs and move to be molten by infraredradiation heating, after which the two plastic halves becomere-solidified to achieve joining under high pressure.For thermoplastic joining, the infrared wavelengths reaching plasticwelding mostly is medium wavelength (approximately 2.0-2.5uM peak)

or short wavelength (approximately 1.0-1.2uM peak).Comparing to hot plate welding, infrared plastic welding is with advantages of:1. Cleaning: non-contacting welding, no sticking to tooling by molten plastic material, which is especiallygood for low temperature plastic joining;2. Lower power consumption: heating power is on only when plastic melting, while no power consumptionfor heating during other action steps of cycle time;3. Higher capacity: infrared can reach heating temperature very soon once power is on, no need to spenttime in pre-heating tooling;4. Can be applied for some thermoplastic material which hot platen welding can not, such as nylon ofothers material with GF.Read More››

VI. Hot Plastic Welding Technology;HotHot plateplate weldingwelding is a kinds of thermal plastic weldingtechnique capable of high welding strength and perfectair-tightness plastic joining. It is mostly applied forchallenge welding plastic joining in large size and complexgeometric design.During hot platen plastic welding, twoplastic halves are held by jigs and move to be molten byheating by hot platen, after which the two plastic halvesbecome re-solidified to achieve joining under highpressure.Mainly advantages of hot platen plastic welding: Ability to weld parts in big measurement and complex

geometric shapes and compound contours with little regard to part and joint geometry. High jointing strength especially to welding PP,PE, TPE and EPDM materials. Compatible with most thermoplastics. High strength, hermetic welds are typical. Multiple parts can be welded per cycle time. Relatively low equipment cost. Nature of the process is simple and highly forgiving of part tolerances when compared with other

assembly processes. Read More››

VII. Spin Plastic Welding;SpinSpin PlasticPlastic weldingwelding is a kinds of mechanical type welding, apply rotation friction to weld two roundthermoplastic Parts, during welding, a Part is fixed on the bottom die, another Part is fixed in rotation of the

Part surface motion. Because there is a certain pressure on the two parts,the heat generated by friction between the Parts can melt the surfaces ofthe two Parts and form a confined and sealed binding. Wherein thepositioning rotary melting is rotating at a set time, and instantly stoppedat the set position on a permanent fusion. Advantages of spin welding: High welding precision; Fast welding cycle time; Low cost in equipment and tooling; Easy welding operation;Read More››