Ultrasonic welding application method

19 Jan 2019

First, the welding method: The ultrasonic welding head with ultra-high frequency vibration under the moderate pressure, the joint surface of the two plastics generates frictional heat and instantaneous fusion bonding, the welding strength can be comparable with the body, using the appropriate workpiece and reasonable interface Designed to achieve watertight and airtight, and to avoid the inconvenience caused by the use of auxiliary materials, to achieve efficient and clean welding. Second, the rivet welding method: Ultrasonic ultra-high frequency vibration welding head, pressing the tip of the plastic product, so that it instantly melts into a rivet shape, so that the materials of different materials are mechanically riveted together. 3. Embedding: By means of the trajectory of the welding head and appropriate pressure, metal parts (such as nuts, screws, etc.) are squeezed into the plastic hole and fixed at a certain depth. After completion, the tension and torque can be comparable. Th...

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Ultrasonic non-woven welding machines

12 Jan 2019

At present, the most environmentally friendly bags are non-woven bags, and the most used ones are ultrasonic non-woven welding machines. Working principle: the high frequency oscillation is used to transmit the sound wave from the welding head to the welding surface of the workpiece, and the workpiece molecules are frictionally generated to reach the melting point of the plastic, thereby completing the rapid dissolution of the solid material and completing the welding. The strength of the joint is close to a whole piece of continuous material. As long as the joint surface of the product is designed to match, there is absolutely no problem in completely sealing. Compared with the traditional pin-type wire stitching, it has the following advantages: 1, the use of ultrasonic welding, the use of needle thread, eliminating the need for frequent needle change, without the traditional line stitching of the broken joints, but also the textile can be neatly cut and sealed. The stitching also pl...

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Ultrasonic welding device

05 Jan 2019

The ultrasonic welding device converts the current 50/60 Hz electric frequency into 20 KHz or 40 KHz electric energy high-frequency electric energy through a transistor function device, and supplies it to the converter. The converter converts electrical energy into mechanical vibrational energy for the ultrasonic wave, and the pressure regulating device is responsible for transmitting the converted mechanical energy to the welding head of the ultrasonic welding machine. The welding head is an acoustic device that transmits mechanical vibration energy directly to the product to be pressed. Vibration is transmitted to the bonding surface through the welding work piece. Vibration generates friction to generate heat, which causes the plastic to melt. The vibration stops when the molten state reaches its interface. A brief hold of the pressure causes the melt to create a strong molecular bond when the adhesive surface cures. The entire cycle is usually completed in less than a second, but t...

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Anti-aging

29 Dec 2018

Anti-aging, long service life: Polyethylene pipes containing 2-2.5% of uniformly distributed carbon black can be stored or used outdoors for 50 years without being damaged by ultraviolet radiation. Good wear resistance: The comparison of wear resistance of HDPE pipe and steel pipe shows that the wear resistance of HDPE pipe is 4 times that of steel pipe. In the field of mud transport, HDPE pipes have better wear resistance than steel pipes, which means HDPE pipes have a longer service life and better economy. Good flexibility: The flexibility of the HDPE pipe makes it easy to bend. In engineering, the obstacle can be bypassed by changing the direction of the pipe. In many cases, the flexibility of the pipe can reduce the amount of pipe and reduce the installation cost. Small water flow resistance: The HDPE pipe has a smooth inner surface with a Manning coefficient of 0.009. The smooth performance and non-adhesive properties ensure that the HDPE pipe has a higher conveying capacity than...

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Performance

22 Dec 2018

Performance A good pipe should not only have good economy, but also have a series of advantages such as stable and reliable interface, material impact resistance, crack resistance, aging resistance and corrosion resistance. Compared with traditional pipe, HDPE pipe system has the following one. Series advantages: (1) Reliable connection: The polyethylene pipe system is connected by electric hot melt method, and the strength of the joint is higher than the strength of the pipe body. (2) Good low temperature impact resistance: The low temperature embrittlement temperature of polyethylene is extremely low, and it can be safely used in the temperature range of -60-60 °C. In winter construction, due to the good impact resistance of the material, the tube will not be brittle. (3) Good resistance to stress cracking: HDPE has low notch sensitivity, high shear strength and excellent scratch resistance, and environmental stress cracking resistance is also outstanding. (4) Good chemical resistanc...

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Connection steps

14 Dec 2018

Such as: rotating cutter to cut the pipe; rotary scraper - scrape the scale on the surface of the pipe; climb the wall scraper - scrape the skin on the surface of the large diameter pipe; gas shut-off tool - to achieve the off-site operation. Connection steps: 1. Clamp and clean the port 2. Adjust and smooth the port 3. Port alignment 4. Pressure welding 5. Pressure relief cooling Application areas: ■ Urban water pipe network system. ■ Urban and rural drinking water pipelines. ■ Liquid transportation pipelines for chemical, chemical fiber, food, forestry, printing and dyeing, pharmaceutical, light industry, paper, metallurgical and other industries. ■ Agricultural irrigation pipelines. ■ Post and telecommunications lines, power line protection sleeves. ■ Mine mortar conveying pipeline. ■ Post and telecommunications lines, power line protection sleeves. Technical Regulations: CJJ101-2004 (Technical Regulations for Buried Polyethylene Water Supply Pipeline Engineering)

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