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Mold repair mode method is introduced

by:SXZG     2020-08-11
Die has an extremely important role in modern industry, its quality directly decides the quality of the products. Increase the service life of mould and precision. Shorten the mould manufacturing cycle, many enterprises is an urgent need to solve the technical problems, but used in mould process will often appear flat Angle, failure modes such as deformation, wear, and even break. Although it is in the selected molding material, molding equipment, mold design under the desired process conditions, but people are often not perfect, so must be in after the completion of the mould processing, test experiment was carried out, to see the quality of molding parts. Always found later, to eliminate the mistake of repairing mold. Plastic parts in the kinds of unhealthy phenomenon, reason is very complex, mold reasons, also has the technology conditions of reason, the two often turn only together. Before repairing mold, shall, according to the plastic parts of the actual situation of unhealthy phenomenon, carries on the detailed analysis and research, find out the cause of molded parts defects after remedial method is put forward. Because the molding condition is easy to change, so the processing conditions, the common practice is to change when change molding condition will not solve the problem, only consider repair mould. Be slow in chusing a repair mold, didn't quite grasp not act rashly. The reason is that once the changes to the terms of the mould, can't again make big transformation and recover. Therefore, the mould repair is necessary. Repair mould a lot of methods, such as edm process, argon arc welding, laser welding technology, the brush plating method. Argon arc welding repair using continuous into between electrode and workpiece the burning arc as heat source, by gas shielded arc welding torch nozzle for welding. The argon arc welding is a common method, can be applied to most major metals, including carbon steel, alloy steel. Inert gas protect welding is suitable for melting stainless steel, aluminum, magnesium, copper, titanium, zirconium, and nickel alloy, because of the low price, is widely used in mold repair welding, the welding heat affected area is big, solder joints such as faults, at present in the aspect of precision mold repair has been gradually replaced by the laser welding. Brush plating to repair the brush plating technology is to use a dc power supply equipment for special use, the power of the anode after plating pen, as a brush plating anode; The power of the cathode artifacts, as a cathode of brush plating, plating pen usually adopt high purity fine graphite as the anode material, graphite block outside wrapped in cotton and terylene wear-resisting. Work, adjust to the appropriate voltage power components, and make the plating solution was saturated with plating pen with a certain relative speed was fixed in the part of the workpiece surface contact, the metal ions in solution under the action of electric field force, spread to the workpiece surface, obtain electronic reduction into metal atoms on the surface, thus the sedimentary crystallization coating metal atoms, which is in the repair plastic mold cavity needed to obtain uniform sediments on the working plane. Laser welding repair laser welding is the use of high-power coherent monochromatic photon beam focusing a laser beam as a heat source for welding. This kind of welding method usually has a continuous power laser welding and pulse power laser welding. Laser welding is not need to be done in a vacuum, defect is the strong penetrating power than the electron beam welding. Laser welding can accurately control of energy, thus can realize welding precision device. It can be applied to a lot of metal, especially can solve some difficult to weld metal and the welding of dissimilar metal. Has be used in the mold repair. Welding is the use of high-power coherent monochromatic light photon beam focusing a laser beam as a heat source for welding. This kind of welding method usually has a continuous power laser welding and pulse power laser welding. Laser welding is not need to be done in a vacuum, defect is the strong penetrating power than the electron beam welding. Laser welding can accurately control of energy, thus can realize welding precision device. It can be used in many metal, especially can solve some difficult to weld metal and the welding of dissimilar metal. Has be used in the mold repair.
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