All digital control welding machine has become the mainstream of imported welding machine. The full digital control technology greatly improves the control accuracy of welding machine, the consistency and reliability of welding machine products, and also greatly simplifies the upgrading of control technology. The domestic edge milling machine is still based on analog control technology. Although some manufacturers have also introduced full digital edge milling machines, most of them are at the level of simply replacing analog control, and the role of full digital control has not been brought into play, resulting in low market recognition.
Most of the imported edge milling machines provide the welding expert system in the form of free or optional, which allows the operator to input welding material, thickness, groove form and other welding process conditions to automatically generate welding process. However, the research and accumulation work of domestic edge milling machine manufacturers in welding process is still very limited, and it is difficult to provide mature and reliable welding process support. As a result, domestic products have no competitive advantage with imported products except for price, and most of the high-end market share is still occupied by imported welding machines. It is the lack and disconnection of intelligence and welding process service that China's welding equipment is mostly pure machines and equipment, and does not shoulder the responsibility of solving welding problems for welding users.
At present, the edge milling machine equipment in our country is gradually catching up with and approaching the international level. There are many kinds of milling machine equipment in our country, and the products are complete. The current ranges from 10 to 1250 a, from schoolbag size to large-scale embedded milling machine, from manual operation to intelligent welding robot. IGBT inverter and single-chip microcomputer control technology are widely used in the edge milling machine equipment, and made into a more general controller, but the thyristor welding machine still has a stable market; CO2 welding machine and MIG welding machine use more precise control technology of one pulse and one drop The research and development of digital welding machine has been paid attention to by many scientific research institutes and large enterprises, and has been recognized and welcomed by more manufacturers. The research and development of expert system, intelligent welding machine and welding quality monitoring and tracking system are more in-depth and widely used.
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