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General method
13 Oct 2018
General method 1. Welding method: Ultrasonic vibration transmits ultrasonic waves to the weldment along with the welding head. Due to the large acoustic resistance of the two weldments, local high temperature is generated, and the weldment interface is melted. Under a certain pressure, the two weldments achieve a beautiful, fast and strong welding effect. 2, implant (insert) method: nut or other metal to insert into the plastic workpiece. First, the ultrasonic wave is transmitted to the metal, and after high-speed vibration, the metal object is directly buried in the molded plastic, and the plastic is melted, and the solidified material is buried. 3. Molding method: The plastic workpiece is instantly melted and formed by ultrasonic waves, and the plastic of metal or other materials can be solidified when the plastic is solidified. 4, the cutting method: the special design of the welding head and the base, when the plastic workpiece just shot, directly pressed on the branches of the pla...
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Electrofusion connection process
08 Oct 2018
Electrofusion connection process 1 Preparation and precautions. The butt pipe sections shall be of the same material, and the same plant supporting materials shall be used as far as possible; the outer diameter and wall thickness of the butt pipe sections shall be the same, and the error shall be within the allowable range; the inner and outer surfaces of the pipe and pipe fittings to be welded shall be smooth and flat without any abnormality; The butt joints should have good processing and welding properties that match the welder. When welding in cold climate and high wind environment, protective measures should be taken; the surface to be welded must be scraped off and cleaned before welding; the electrofusion pipe fittings should not be unpacked when not in use, strictly in accordance with the specifications of the welding machine and the bar code of the pipe fittings. The time value is to be welded; the joint must not be moved or any external force applied during the welding proces...
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Selection and quality control of hot melt connection method
30 Sep 2018
Selection and quality control of hot melt connection method The selection of the hot melt connection method mainly depends on the material grade and density of the plastic pipe. The connection method of the plastic pipe should also be based on the relevant regulations of the buried "Technical Regulations for Polyethylene Water Supply Pipeline" (GJJ101-2004). Most polyethylene pipes can be joined together by two hot melt methods. However, some high-density polyethylene pipes cannot be joined by a receiving method. When used in buried heat exchangers, polybutene is generally a socket connection. A strong joint can be obtained by using both connection methods properly. When the two connections are used properly, a strong joint is obtained, which is stronger than the pipe itself. It should be noted that different plastics or different grades of plastic should not be welded together due to differences in melting point and service life. In the construction, the visual inspection and the "bac...
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hot melt docking
21 Sep 2018
hot melt docking The hot melt butt joint is a method in which the polyethylene pipe end interface is heated and melted by a heating plate and then butted and fused to each other and cooled and fixedly connected together. A hot melt electric welder is usually used to heat the end pipe, melt it, quickly attach it, maintain a certain pressure, and cool to achieve the purpose of welding. Polyethylene pipes of various sizes can be connected by hot melt bonding. However, it is recommended to use a capacitor connection for pipes with a nominal diameter of less than 63 mm. The method is economical and reliable, and its interface has higher strength than the pipe itself during tension and pressure. Ready to work. The butt pipe sections shall be of uniform pipe type, and the same plant supporting materials shall be used as far as possible; the outer diameter and wall thickness of the butt pipe sections shall be the same; the inner and outer surfaces of the welded pipe and pipe fittings, especial...
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The hot-melt welding machine
14 Sep 2018
The hot-melt welding machine adopts a plate-type structure and uses an electric heating method. The whole machine is in the form of a frame. It consists of three plates: upper template, lower template and hot template. It is equipped with hot mold, upper and lower plastic cold molds, and the action mode is pneumatic control. It is mainly used for welding of plastic parts such as household appliances, car lights and car dissolvers. According to different plastic parts, the heating power and mold size can be set to realize welding of various plastic workpieces, which is easy to operate and convenient to use. product description The device adopts a plate-type structure, and the heat of the heating plate is transferred to the welding surface of the upper and lower plastic heating members by an electric heating method. The surface is melted, and then the heating plate is quickly withdrawn. After heating the upper and lower heating members, the molten surface is fused, solidified and integra...
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Fully automatic hot melt butt welding
08 Sep 2018
Fully automatic hot melt butt welding The characteristics of the welder are: 1 The optimal welding parameters of pipes of different materials, calibers and SDRs have been set in advance; 2 automatic control of welding time, temperature and pressure; 3 drag pressure automatic detection and compensation; 4 The heating plate is automatically popped up, and the temperature loss is minimized; 5 automatic monitoring and prompting of the whole process in each step of the welding process; 6 fast clamping system improves work efficiency by 30%; 7 The welding process dynamic data can be printed out or downloaded to the quality inspector PC through the data transmission system to review the welder and the operator's on-site performance; The 8 database can store up to 600 interfaces related to welding parameters.
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