Ultrasonic metal welding machine description
Ultrasonic metal welding is eighteen thirties discovered by accident.It is similar to the friction welding, but differentiated, ultrasonic welding time is very short, below the recrystallization temperature and pressure welding; it is not the same, because the static pressure pressure welding is much smaller than.The ultrasonic welding process in the initial stage, the tangential vibration out surface of metal oxides, and the protruding part is a rough surface produced by repeated micro welding and the destruction process and make the contact area is increased, while the welding temperature, welding interface in plastic deformation.In the contact pressure, close to atomic attraction can occur when the distance, i.e. to form the solder joint.Welding time is too long, or ultrasonic amplitude Congress to make the welding strength decreased, and even the destruction of.Ultrasonic metal welding development today, ultrasonic metal welding machines include: ultrasonic metal spot welder, ultrasonic metal welding machines, ultrasonic metal wire roller welder, ultrasonic metal sealing and cutting / sealing machine four major categories.Believe that, with the advancement of technology will have more new ultrasonic metal welding technology!
Ultrasonic metal welding machine principle of work
Ultrasonic metal welding machine is a mechanical process, the high frequency electric energy through a transducer device converts the mechanical vibration effects on two to be soldered to the metal surface, under pressure, so that the two metal surfaces are frequency caused by friction heat and weld pool.In the process of welding current in no process through, no welding mode of the welding arc and ultrasonic welding, because there is no thermal conductivity and resistivity etc, so the non-ferrous metal materials, is an ideal metal welding system.Especially for aluminum, nickel, copper, silver and other fine, thin material for a single point, multipoint, square, strip, monolayer, multilayer, composite welding to the ideal effect.The utility model has the advantages of fast, energy-saving, fusion high strength, good conductivity, no spark, close to the cold processing; disadvantage is the welding of metal parts can not be too thick (generally less than or equal to 5mm), not too big, need joint pressure.In short, is to use the amount of tens of thousands of times per second high frequency vibration wave is delivered to the two welding metal surface of the workpiece, with certain pressure, so that the metal surface friction between the molecular layer formed between the fusion welding, achieve the purpose.
Ultrasonic metal welding machine welding
1, welding material does not melt, not fragile metal properties;
In 2, after welding, good conductivity, resistance coefficient is very low or almost zero;
In 3, weld metal surface requirements low, oxidation or electroplating can be welded;
4, short welding time, without any gas, flux, solder;
In 5, metal welding without spark, environmental safety;
6, easy realization of dissimilar metal connection between the control and automation.
Ultrasonic metal welding machine welding characteristics
1, two are welded by ultrasonic vibration objects overlap, pressurized by synthetic solid form, engagement time is short, and the joint part does not produce casting organization (rough surface defect).
2, ultrasonic welding and resistance welding method, long service life of the mold, mold repair and replacement of less time, and being easy to realize automatization.
In 3, the same metal in different kinds of metal are for ultrasonic welding, welding and electrical energy consumption is less than.
4, ultrasonic welding and other welding compared to less pressure, requirements, and variant volume below 10%, while the cold pressure welding and its deformation of workpiece 40%-90%.
Unlike the other 5, ultrasonic welding welding as requirements for welded surface pretreatment and post treatment after welding.
6, processing ultrasonic welding without filler metal, external heat flux, and other external factors.
7, ultrasonic welding can make the temperature of the material effect to a minimum (welding zone temperature less than the metal to be welded absolute melting temperature 50%), thereby not allowing metal structure changes, so it is suitable for electronics in the field of welding application.
Ultrasonic metal welding machine equipment specifications
1, using PLL PLL frequency automatic tracking technology, without the need for fm;
2, Germany piezoelectric ceramic transducer, large power, high conversion efficiency;
3, advanced 20KHZ ultrasonic control box, which can ensure the realization of the microprocessor control module;
4, independent intellectual property rights of the welding head, the world famous brand, to reduce the use of cost;
5, energy detection mode, ensure the welding quality consistency;
In 6, a stepless adjusting amplitude, without frequent replacement of amplifier;
In 7, the compact design, key components of light, beautiful appearance;
In 8, the welding strength is high, the contact resistance is very small, the thicker metal has good welding performance.
Ultrasonic metal welding machine applications
1, nickel-metal hydride battery nickel and nickel plate nickel sheet melt each other with mutual fusion.
2, lithium-ion battery, polymer battery copper and nickel sheet mutually melt, aluminum foil and aluminum melt each other.
3, wire mutual fusion, partial form a plurality of melt each other.
In 4, the wire and a kind of electronic component, connector contact, mutual fusion.
In 5, a kind of home appliances, automotive supplies a large heat sink, heat exchange fin, honeycomb core of melt each other.
In 6, an electromagnetic switch, no fuse switch and other large current contact, the mutual fusion of dissimilar metal.
In 7, a metal tube sealing, cutting off water, airtight.
In 8, the amorphous silicon solar battery plate positive and negative polarity current lead wire welding, a welding junction box.
Applied to copper, aluminum, tin, nickel, gold, silver, molybdenum, stainless steel non-ferrous materials such as sheet, rod, wire, sheet, strip and other materials to implement instant welding, the total thickness of up to 2-4mm; widely used in auto parts, electronics, electrical appliances, electrical, refrigeration equipment, metal products, batteries, solar, transport equipment, toys and other industries.