Common plastic characteristics and ultrasonic welding performance

Update time:11-06-2021

 Ultrasonic welding machine can weld many different mat […]

 Ultrasonic welding machine can weld many different materials of plastic and plastic products. Because different materials require different ultrasonic equipment, we must have a full understanding of the materials before ultrasonic welding to achieve better welding results. Specifically, let's take a look at the characteristics of these materials that can be welded by ultrasonic welding machines.

1. General purpose ps general polystyrene:

Light specific gravity, strong corrosion resistance to water and chemicals, stable, good insulation, especially suitable for injection and extrusion molding, commonly used in the manufacture of toys, washing equipment, decorations, lenses, pans, floating wheels, etc. Due to the high elasticity coefficient, it is suitable for ultrasonic welding.

2. Unmodified PP polypropylene:

It has light specific gravity, good insulation, high strength, heat resistance and chemical erosion, and it can be made into rope and other fabrics after spinning. Products include toys, suitcases, music shells, electrical insulators, food packaging, etc. Due to its low elastic coefficient, this material is easy to attenuate sound wave vibration and is difficult to ultrasonic welding.

3. Polysulfon

e Polysulfone:

Hard, strong, self-willed, long-term heating does not affect its electrical performance, commonly used for TV parts, motor parts, etc. Due to the high welding point, higher energy welding is required.

4. PVC polyvinyl chloride:

Electrical service, resistance to weak chemicals, good low temperature resistance, flame retardancy, commonly used in various synthetic leather hoses, material films, etc. The material is soft, easy to attenuate sound wave vibration, and the welding surface is easy to burn.

5. ABS acrylonitrile butadiene:

The styrene copolymer is light in weight, has both bremsstrahlung, rigidity and chemical resistance, and has a wide range of uses. This material has good thermal conductivity and is especially suitable for ultrasonic welding.

6. Celluloeics ester-acid texture material:

The material is easy to change and discolor during ultrasonic vibration, the contact surface is not easy to absorb energy, and it is difficult to weld.

7. Polypheny lene Qxide (ppO):

Heat and humidity resistance, chemical resistance, not afraid of steam, often used as terminals, rotors, shells, impellers and pipe fittings, etc., high melting point, higher energy welding.

8. Acrylics:

It has high hardness, resistance to heavy blows, not affected by acid, high optical clarity, and good coloring. It is often used in automobile taillights, medals, watch plates, faucet handles, etc. When used in ultrasonic welding, attention must be paid to the problem of attenuation and transparency.

9. Nylon nylon:

The material is strong, wear-resistant, has a very low friction coefficient, and is acid-resistant. It is often used as bearings, gears, tubes, kitchen utensils, brushes, etc. When ultrasonic welding is used, due to the high melting point, the welding time is long, and it is easier to weld by drying before welding.

10. P.C. Polycarbonate:

Heat resistance, excellent transparency, high tensile and flexural strength, commonly used in lenses, such as heat pipes, filters, etc. Due to the high welding point, the welding time is long. Since the material is hygroscopic, it should be dried before welding.

11. Noryl polyphenylene ether:

It has extremely short performance, good electrical properties, high insulation, and is commonly used as electronic parts. Due to the high melting point, the welding time is long and the amplitude is high.

12. High Density PE:

The specific gravity is small, it is flexible at low temperature and room temperature, it is waterproof and corrosion resistant, and can be made into various colors. Low-priced products are often used in dishes, packaging films, soft water pipes, baby bottles, soft ropes, etc. The higher the density, the more suitable for ultrasonic welding.

13. Acetal acetal:

High tensile and compressive strength, good abrasion resistance, the strongest and strongest. It is often used for relays, screws, bearings, rollers, kitchen utensils, etc. Because of the low coefficient of wear, ultrasonic welding requires high vibration amplitude and longer The splicing time.

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