Teach you how to identify laser welding wire
German brand laser welding wire laser repair precision mold processing technology, only flowed into China in the early 21st century, and has gradually replaced the traditional argon welding and cold welding trend, but in Europe and the United States and other developed countries such as Germany, the technology is in 20 The 1990s have matured and developed into a rigorous and hierarchical industrial system. It is well known that precision mold welding is different from other parts welding, and its quality control requirements are very strict, and the repair cycle of the workpiece must be as short as possible. The traditional argon welding heat affected zone is large, causing collapse to the surrounding of the welding, and the probability of deformation is very high. For the mold with high precision and large welding area, it must be heated and preheated, and welded at a specific temperature. The temperature is lowered for annealing, so the cost and time of the tossing are not acceptable to the user; and the cold welding has defects such as weak soldering and falling off. Laser welding has no shortage of argon welding and cold welding, so it is gradually being widely used.
There is also an imbalance in industrial development in Germany. Most of its advanced industries are concentrated in West Germany. The technology of East Germany originates from the former Soviet Union. Several industrially developed cities mainly refer to Munich, Frankfurt and Stuttgart. Similarly, pioneers in the laser welding industry are also concentrated in West Germany. In China, the most commonly used laser welding wire is the German special GHJ laser welding wire commonly used models are: 8407, SKD11, SKD61, S136.P20718.738, the manufacturer is located in the world famous industrial city - Stuttgart. As early as the early 1990s, GHJ manufacturers who have been engaged in argon arc welding technology have realized the huge market of laser repairing molds. They purchased several German laser welding machines to repair precision molds and became the first professional in Germany to provide precision. The production service provider of mold laser repair technology, and through continuous trial and improvement, combined with metallurgy and cold drawing technology, produces GHJ brand laser welding wire. GHJ manufacturers have been using their own wire repair molds, Mercedes-Benz and BMW Automotive Mould Factory are fixed customers of GHJ manufacturers. In China, the market share of GHJ welding wire has reached more than 60% in just two years.
Germany also has other brands of welding wire, but because of the lack of welding practice experience, its quality has been questioned. For welding similar polishing, grain and special heat treatment, there are always quality problems; and some wire manufacturers are located in East Germany. Its production technology is mainly inherited from Russia, the price of welding wire is relatively cheap, but the quality after welding processing has always caused the end users to burn out. At present, the welding wire used in China is varied, with 90, #90, M90 and so on. In order to make profits, some dealers sell stainless steel wire, argon arc welding wire and so on, as laser welding wire, and even pretend to be sold by German GHJ brand welding wire. Due to the non-standard competition in the domestic market, the brand welding wire has not been fully utilized, which has led to the failure of domestic welding wire quality and laser welding technology for a long time. This is one of the reasons why China's laser repair mold technology lags behind advanced developed countries for more than a decade.
There are many methods to identify the German brand laser welding wire. The following methods are mainly used: 1. After welding and polishing, there is no bad welding quality such as blisters, cracks, blackening, etc. The hardness after welding is consistent with the base metal; 2. The surface of the good quality wire has Metallic luster, good toughness, easy to rust due to moisture absorption, and the rust-proof welding wire is thick because of its surface, or its material is close to stainless steel. It is easy to produce trachoma after welding or it is easy to deform or fall off, or the hardness is very low. The laser can melt, burn, or evaporate almost all materials. If the wire used contains heavy metals, or the rust-proof layer on the surface of the wire contains toxic components, these gases and vapors can endanger human health. We recommend that users of laser welding be vigilant and do not use laser welding consumables to ensure the health of laser welding operators and improve the technical quality of laser welding in China.
There is also an imbalance in industrial development in Germany. Most of its advanced industries are concentrated in West Germany. The technology of East Germany originates from the former Soviet Union. Several industrially developed cities mainly refer to Munich, Frankfurt and Stuttgart. Similarly, pioneers in the laser welding industry are also concentrated in West Germany. In China, the most commonly used laser welding wire is the German special GHJ laser welding wire commonly used models are: 8407, SKD11, SKD61, S136.P20718.738, the manufacturer is located in the world famous industrial city - Stuttgart. As early as the early 1990s, GHJ manufacturers who have been engaged in argon arc welding technology have realized the huge market of laser repairing molds. They purchased several German laser welding machines to repair precision molds and became the first professional in Germany to provide precision. The production service provider of mold laser repair technology, and through continuous trial and improvement, combined with metallurgy and cold drawing technology, produces GHJ brand laser welding wire. GHJ manufacturers have been using their own wire repair molds, Mercedes-Benz and BMW Automotive Mould Factory are fixed customers of GHJ manufacturers. In China, the market share of GHJ welding wire has reached more than 60% in just two years.
Germany also has other brands of welding wire, but because of the lack of welding practice experience, its quality has been questioned. For welding similar polishing, grain and special heat treatment, there are always quality problems; and some wire manufacturers are located in East Germany. Its production technology is mainly inherited from Russia, the price of welding wire is relatively cheap, but the quality after welding processing has always caused the end users to burn out. At present, the welding wire used in China is varied, with 90, #90, M90 and so on. In order to make profits, some dealers sell stainless steel wire, argon arc welding wire and so on, as laser welding wire, and even pretend to be sold by German GHJ brand welding wire. Due to the non-standard competition in the domestic market, the brand welding wire has not been fully utilized, which has led to the failure of domestic welding wire quality and laser welding technology for a long time. This is one of the reasons why China's laser repair mold technology lags behind advanced developed countries for more than a decade.
There are many methods to identify the German brand laser welding wire. The following methods are mainly used: 1. After welding and polishing, there is no bad welding quality such as blisters, cracks, blackening, etc. The hardness after welding is consistent with the base metal; 2. The surface of the good quality wire has Metallic luster, good toughness, easy to rust due to moisture absorption, and the rust-proof welding wire is thick because of its surface, or its material is close to stainless steel. It is easy to produce trachoma after welding or it is easy to deform or fall off, or the hardness is very low. The laser can melt, burn, or evaporate almost all materials. If the wire used contains heavy metals, or the rust-proof layer on the surface of the wire contains toxic components, these gases and vapors can endanger human health. We recommend that users of laser welding be vigilant and do not use laser welding consumables to ensure the health of laser welding operators and improve the technical quality of laser welding in China.
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