修改這篇文章 : The most important processing equipment in PVC doors and Windows

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First, welding is the process of joining metal parts using various fusible alloys (solder). Solder has a lower melting point than the material to be welded, so that the parts can connect with each other through their surfaces without being melted. Secondly, welding machine according to the material is mainly divided into: plastic welding machine and metal welding machine two. Applied to the main technology: ultrasonic, high frequency, plasma, electro thermal, rotary and so on. Among them, the plastic welding machine is used for welding polyethylene, polypropylene, polypropylene, nylon and other thermoplastic engineering plastic sheets or products. Operation, plastic welding rod is molten ejector, and welding parts and it fusion and bond. It is widely used in welding and maintenance of plastic equipment, laying of plastic floor, connection of plastic pipe and sealing of plastic bottle. Metal welding machine is mainly used to weld metal materials. Our main understanding is plastic welding machine. There are many kinds of plastic welding machines, including single point single function, single point double function and single point multifunction (this type of welding machine also has only one welding head, and can be used for welding at any Angle between 90° and 180° after changing the form of positioning plate). There are also two point, three point, four point and six point welders and four corner welders. Different kinds of welding machines have different welding functions and working efficiency. The main principle is to point to: PVC welding when ultrasonic wave ACTS on the thermoplastic plastic contact, will produce tens of thousands of times per second, the high frequency vibration, this reaches a certain high frequency vibration amplitude, through the weld ment sends the ultrasonic energy to the welding area, due to the welding area namely the two welding interface acoustic resistance is big, so can produce local high temperature. And because of the poor thermal conductivity of plastic, can not be timely distributed, gathered in the welding area, resulting in two plastic contact surface melting quickly, plus a certain pressure, make it fusion as a whole. When the ultrasound stops working, leave the pressure for a few seconds to solidify, forming a strong molecular chain that can be welded to a strength close to that of the raw material. Welding method: Welding and welding method of PVC: ultrasonic vibration conducts ultrasonic wave to the welding part along with the welding head. Due to the high acoustic resistance at the two welding parts, local high temperature is generated to melt the interface of the welding part. Under certain pressure, the two welding parts can achieve the effect of beautiful, fast and strong welding. PVC welding embedding method: nut or other metal to be inserted into the plastic work piece. First, the ultrasonic wave is transmitted to the metal, through high-speed vibration, the metal is directly embedded into the molding plastic, and the plastic is melted and embedded after solidification. PVC welding riveting method: to metal and plastic or two different properties of plastic joint, can use ultrasonic riveting method, so that the welding piece is not brittle, beautiful, strong. PVC spot welding method: use small welding head to separate the point welding of two large plastic products, or the whole row of dentate welding head directly pressed on two plastic work piece, so as to achieve the effect of spot welding. PVC welding molding method: the use of ultrasonic wave will be plastic work piece melting molding, when the plastic solidification can make metal or other materials of plastic firm. Welding removal of PVC: the special design of welding head and base is used to press the plastic branches directly when the plastic workpiece is just injected, and achieve the removal effect through ultrasonic conduction. The working principle of PVC welding refers to that the quality of ultrasonic plastic welding depends on three factors, such as the amplitude of the transducer welding head, the added pressure and the welding time. The welding time and the welding head pressure can be adjusted, and the amplitude is determined by the transducer and the amplitude transformer. There is an appropriate value for the interaction of these three quantities. When the energy exceeds the appropriate value, the melting amount of plastic will be large and the welding object will be easily deformed. If the energy is small, it is not easy to weld, the pressure added can not be too large. As a typical representative of plastic welding machine, PVC welding machine has irreplaceable importance in industrial welding. Use welding function to improve efficiency and reduce labor. That's all there is to know about welders. For more information, click on the link below.

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