• 2021-05-26

The ultrasonic metal welding machine was discovered by accident in the 1930s. At that time, during the current spot welding and ultrasonic vibration test, it was found that the electrode could be welded without current, so the ultrasonic metal cold welding technology was developed. Although ultrasonic welding was discovered earlier, its mechanism is still not very clear. Ultrasonic metal welding a...

• 2021-05-26

As the name suggests, the operating principle of the ultrasonic metal welding machine is to use the high-frequency vibration of the ultrasonic wave to transfer the welding metal surface, and apply a certain pressure to make the metal surface rub against each other to form the fusion between the molecular layers, so as to achieve the purpose of welding. Since the design of ultrasonic metal welding ...

• 2021-05-26

Ø Ultrasonic welding The welding head (HORN) vibrating with ultrasonic ultra-high frequency, under moderate pressure, causes the joint surfaces of the two plastics to generate frictional heat and instantaneously melt and join. The welding strength is comparable to that of the main body. Suitable workpieces and reasonable interface design are adopted. It can achieve water tightness and air tightnes...

• 2021-05-26

The effect of an ultrasonic welding machine is inversely proportional to the modulus of elasticity, coefficient of friction, and thermal conductivity, and inversely proportional to density, specific heat capacity, and melting point. The welding effect of the ultrasonic welder is mainly related to the melting point of the material and the surface friction coefficient. These parameters vary with mat...

• 2021-04-30

Ultrasonic preparation of graphene As the special properties of graphite are already known, several graphite preparation methods have been developed. In addition to chemically producing graphene from graphene oxide in a multi-step process, very strong oxidizing and reducing agents are also required. In addition, compared with graphene obtained from other methods, graphene prepared under these hars...

• 2021-04-30

Ultrasonic energy acts on the medium, which will cause high-speed and subtle vibrations of the particles, resulting in changes in mechanical quantities such as speed, acceleration, sound pressure, and sound intensity, which will cause mechanical effects. Ultrasound is the propagation form of mechanical energy, which is related to the wave process and will produce a linear effect of vibration. When...

• 2021-04-30

Ultrasonic food processing involves an ultrasonic food cutting knife (guillotine) that produces an almost frictionless surface where the food will not stick or deform. Products are cut cleanly on the surface, including fillings such as nuts, raisins, dried fruits or chocolate chips, without shifting or ploughing. Many of the most prestigious food manufacturers in the world are using ultrasonic foo...

• 2021-04-30

Ultrasonic extraction is widely used to release valuable intracellular substances from plant materials. Target extracts include lipids/fatty acids, proteins, vitamins, polyphenols and other biologically active compounds. As a process enhancement technology, ultrasonic extraction of edible oils, such as extra virgin olive oil, avocado oil, sunflower oil, linseed oil, etc., can increase the output o...