The advantages of butt welding machine are as follows
03 Jan 2020
1. Energy saving. Radiator flash butt welding machine uses two 125KVA welding resistance transformers as the power source, pneumatic compaction, upsetting, and no hydraulic station. Compared with other other 315KVA single-phase AC welding transformers and two 18KVA hydraulic stations, the UN-250AB welding machine can save up to 78250. 2. Low requirements on the power grid. Only 250KVA power grid can meet. 3. High welding accuracy. Programmable controller PLC and imported stepping motor are used to control the flashing process, which can accurately set the amount of burning and the speed of burning; the welding current is controlled by the microcomputer welding controller The center distance error of the chip head after welding can be controlled within ± 0.2mm, which is convenient for the subsequent group welding. 4. Automatic centering function. Ensure that the distance between the two ends of the pipe string and the ends of the two chip heads before welding is consistent, so as to ens...
Small knowledge of butt welding machine
28 Dec 2019
Butt welding machine is also called current welding machine or resistance welding machine. By using the resistance between the contact surfaces of the two workpieces, a low voltage and large current are used to instantaneously heat the contact surfaces of the two butting metals to melt and fuse. Butt welding machine uses resistance welding method and flash butt welding method to realize welding of various wires, rods, rings, plates, tubes and other profiles of low carbon steel, medium carbon steel, high carbon steel and non-ferrous metals. Its design is reasonable, its quality is reliable, its operation is convenient, its working place is flexible, and it is easy for the welder to master. Top calcining force, jaw distance, current can be easily adjusted according to needs, and can be automatically and manually fed. Suitable for wire drawing, nail making, cable and wire, steel wire rope, construction and other industries. Working principle: Radiator flash butt welding machine uses two 1...
Routine maintenance of hot melt docking machine
20 Dec 2019
Routine maintenance of hot melt docking machine 1. The welding machine should be placed in a dry, non-corrosive gas place. Must be placed smoothly, especially the control device is not allowed to be placed vertically, inverted, or sideways. 2. It is strictly forbidden that the welding machine and other objects are piled up and collided with each other. The appearance of the main parts of the welding machine must not be significantly damaged. 2. 3. The exposed surface of the guide bar on the rack should be clean and free of rust. 3. 4. Regularly check the hydraulic oil quantity and oil quality of the oil tank. When the oil quantity is insufficient, it should be replenished in time, and the oil deterioration should be replaced in time. 5. 5. Always check the hydraulic system for external leaks (drip, leak). If found, it should be repaired in time, otherwise it will affect the welding quality and pollute the environment. 5. 6. Do not allow dirt to adhere to the hydraulic quick coupling. D...
Specific steps of PE hot melt docking machine
14 Dec 2019
The main role of PE hot melt docking machine is to dock PE pipes such as water pipes and gas pipes. As a manufacturer of PE hot melt docking machines, Hangzhou Huanzhong will share the specific steps of the docking machine today: 1. According to the pipes and fittings to be welded, select the appropriate clamps to clamp the pipes and prepare them for cutting. 2. Cutting the impurities and oxide layer on the welded pipe section and the end face of the pipe to ensure that the butt end faces of the two pipes are flat, smooth and free of impurities. 3. The end faces of the two welded pipes must be completely centered. The smaller the wrong side, the better. The wrong side cannot exceed 10% of the wall thickness, and it will affect the quality of the joint. 4. The butt temperature is generally between 210-230 ° C. The heating time of the heating plate is different in winter and summer, and the melting length of both ends is preferably 1-2mm. 5. Take off the heating plate, quickly make the t...
Several methods of PE pipe hot melt butt（2）
06 Dec 2019
⑶ 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 plastic pipes should also be based on the buried "Polyethylene Water Supply Pipe Engineering Technical Regulations" (GJJ101-2004) and other relevant regulations. Most polyethylene pipes can be joined together by two hot-melt methods. However, some high-density polyethylene pipes cannot be connected by the method of undertaking. When used in buried heat exchangers, polybutene is generally a socket connection. Both connection methods can be used to obtain a strong joint. Both connection methods are used properly to obtain strong joints, which are stronger than the strength of the pipe itself. It should be noted that due to different melting points and service life, different plastics or different grades of plastic should not be welded together. During construction, visual inspection and...
Several methods of PE pipe hot melt butt
29 Nov 2019
The connection joints of all polyethylene pipes must be connected by electric fusion or thermal fusion, but not by mechanical connection methods. The joints of thermal fusion connection are stronger than the pipeline itself. The joints or connectors are made of plastic and there is no corrosion problem. The choice of pipe connection method depends on the requirements and recommendations of the pipe manufacturer, and the skills of the site construction staff. Hot-melt connections are first trimmed, cleaned, aligned, and then heated to their melting points and joined together. There are two types of hot-melt technology in the industry: hot-melt and socket connection. ⑴Hot melt butt Hot-melt butt jointing is a method in which the end interfaces of polyethylene pipes are heated and fused with a heating plate to fuse with each other, and are fixedly connected together after cooling. Usually, a hot-melt electric welding machine is used to heat the end pipe, make it melt, quickly attach it, m...