Hangzhou Welping Machinery Equipment Co., Ltd.

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Hangzhou Welping Machinery Equipment Co., Ltd.
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Product Information
Butt Fusion Machines

  Full choices of HDPE pipe welding machines, size from 40mm to 1600mm. Available in semi-auto hydraulic, automatic hydraulic and manual designs, for different pipe jointing applications. Welping hydraulic type fusion machines are characterized by it is heavy-duty structure, can provide steady and reliable welding performance. The automatic butt welding machines provide step by step operation experience, even a novice operator can finish the job correctly and efficiently. Benefiting from the complete production line, Welping can help customers quickly get ordered machines in shorter time with consistent quality.

  Butt fusion welding machine is also known as current welding machine or resistance Butt Fusion Machines. Using the resistance between the contact surfaces of the two workpieces, a low voltage and a large current is instantaneously passed through, so that the contact surfaces of the two butt-jointed metals are instantly heated to melt and fuse.

  Product classification of butt fusion welding machine

  Butt Fusion Machines are divided into different welding methods: flash butt welding machine, steel butt welding machine, copper rod hdpe welding machine

  Flash Butt Fusion Machines mainly use the heat generated by the contact resistance of the workpiece to heat the workpiece, the metal surface is melted, the temperature gradient is large, and the heat affected zone is relatively small.

  The weld is formed under the condition of plastic deformation of the counterpart solid phase metal of the workpiece to form a common grain. The weld structure and composition are close to the base metal (or after heat treatment), and it is relatively easy to obtain equal-strength and equal-plastic welded joints.

  The flash hdpe welding machine process has the self-protection function of exhausting air and reducing metal oxidation. Upset forging can also drain oxides out of the weld with the liquid metal. Weld inclusions, incomplete penetration and other defects are less.

  The flashing process has a strong self-adjusting function, and it has low requirements for strictly maintaining the specification and consistency, and the welding quality is stable. Unit welding cross-sectional area requires small electric power, and only (0.1-0.3) KVA/mm2 electric power is required for welding low carbon steel.

  The hdpe welding machine has high productivity, and it only takes a few seconds to tens of seconds to weld a joint.

  The working principle of butt fusion welding machine

  Radiator flash Butt Fusion Machines uses two 125KVA power frequency welding resistance transformers as power sources, and both ends are pressed, discharged flash, and upset at the same time to complete the butt joint of two steel radiator fins and the middle elliptical tube. Burning amount, upset forging The quantity and welding current are set and displayed by the PLC through the LCD screen.

  butt fusion welding machine welding range

  Butt Fusion Machines have a wide range of applications. In principle, all metal materials that can be forged can be used with Flash Butt Fusion Machines. Non-ferrous metals and alloys such as mild steel, high carbon steel, alloy steel, stainless steel, etc. can be welded with Flash Butt Fusion Machines. The welding cross-sectional area range is large, generally from tens to tens of thousands of mm2 cross-sectional area can be welded. Flash Butt Fusion Machines are widely used in welding various plates, pipes, profiles, solid parts, knives, etc. It is widely used and is an economical and efficient welding method.

  The main advantages of butt fusion welding machine

  1).Energy saving. The radiator flash Butt Fusion Machines uses two 125KVA solder resist transformers as the power source, pneumatic pressing, upsetting, and no hydraulic station. Compared with other single-phase AC solder resists that use two 315KVA Transformer and two welding machines with power of 18KVA hydraulic station, UN-250AB welding machine can save electricity up to 78℅.

  2).The requirements for the power grid are low. Only a power grid of 250KVA can be satisfied.

  3).The hdpe welding machine has high precision. The programmable controller PLC and imported stepping motor are used to control the flashing process, and the burning amount and burning speed can be accurately set; the welding current is controlled by the microcomputer welding resistance controller. The center distance error can be controlled within ±0.2mm, which is convenient for subsequent assembly and welding.

  4).Automatic centering function. Ensure that the distance between the two ends of the pipe string and the two ends of the piece is the same before welding, so as to ensure the same amount of burning at both ends.

  5).The hdpe welding machine has high welding efficiency. Since the workpiece is pressed by a double force cylinder, its reaction speed is significantly faster than that of the hydraulic cylinder.

  6).The operation and maintenance service is convenient. Since there is no hydraulic station, the debugging points and fault points of the product should be less, and there will be no oil leakage and other phenomena.

  butt fusion welding machine safe operation

  1).The worktable for feeding and feeding the material should be kept level with the lower part of the cutter, and the length of the worktable can be determined according to the length of the processed material. When processing long steel bars, there should be a special person to help, and obey the instructions of the operator, and do not push or pull arbitrarily.

  2).Before starting, it must be checked that the cutter should be free of cracks, the bolts of the tool holder are fastened, and the protective cover is firm. Then turn the pulley by hand, check the gear meshing clearance, and adjust the cutter clearance.

  3).After starting, it should be idling first to check that the transmission parts and bearings are running normally before operation.

  4).The material shall not be cut when the machine does not reach the normal speed. When cutting, the middle and lower parts of the cutter must be used, and the steel bar should be grasped and fed quickly to the knife edge. It is strictly forbidden to use both hands to hold the steel bar on both sides of the blade and lean over to feed.

  5).The diameter and strength of steel bars and red-burning steel bars shall not exceed those specified on the mechanical nameplate. When cutting multiple steel bars at one time, the total cross-sectional area should be within the specified range.

  6).When cutting low-alloy steel, the high-hardness cutter should be replaced, and the cutting diameter should meet the requirements of the mechanical nameplate.

  7).When cutting short materials, the distance between the hand close to the blade and the blade should be kept more than 150mm. If the hand-held end is less than 400mm, the short end of the steel bar should be pressed or clamped with a sleeve or a clamp.

  8).During operation, it is strictly forbidden to use hands to directly remove the nearby broken ends and debris, and non-operators should not stay around the swing of the steel bar and near the knife edge.

  9).When it is found that the machine is not running normally, there is abnormal noise or the cutter is skewed, it should be stopped immediately for maintenance. Maintenance must be stopped and the power supply can be cut off.

  10).Before the operation of the hydraulic drive type cutting machine, check and confirm that the hydraulic oil level and the rotation direction of the motor meet the requirements. After starting, it should run without load, loosen the oil valve, and drain the air in the hydraulic cylinder before cutting the ribs.

  11).Before using the manual hydraulic Butt Fusion Machines, the oil drain valve should be tightened clockwise, and after cutting, it should be loosened counterclockwise immediately. During the operation, the hand should hold the cutting machine steadily and wear insulating gloves.

  12).After the operation, the power supply should be cut off, the sundries between the cutters should be removed with a steel brush, and the whole machine should be cleaned and lubricated.

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