1. Application of heat exchanger laser welding technology
Laser welding is widely used in the heat exchanger industry for its high reliability and high efficiency. The products of the heat exchanger industry generally have problems such as the complicated structure of the weld and the complicated working environment, which restricts the development of the product. The successful application of laser welding technology in this industry not only improves the competitiveness of the product, but also greatly reduces the manufacturing cost and production cycle. Foreign related products have been widely used on a large scale.
2. Application of laser welding in the switch industry
High-pressure sulphur hexafluoride switchgear is the leading product in the high-voltage switch industry. This product requires reliable sealing under natural conditions for more than 30 years. The traditional welding method not only faces the deformation of the box after processing, but also has poor airtightness, and the processing efficiency is low. High cost and many other issues. The modular design of the 3D laser machining machine enables the laser welding of the switch box with curved surfaces.
Special welding power control options, weld tracking system, programmable shielding gas system and laser wire feeding device make the welding quality fully meet the requirements of large-scale industrialization. The adoption of 3D programming software not only greatly improves efficiency but also minimizes scrap rates. Nowadays, the world's most famous high-voltage switch manufacturers use TRUMPF's 3D laser processing equipment for cutting and welding applications. For example, in Europe, AU-Galbo, ABB and Siemens use Trump's three-dimensional equipment for high-pressure SF6. Cutting and welding of electrical cabinets. In the near future, there will be users in the switch industry in China for such applications.
3. Application of laser welding in gear processing
The process of laser welding gears fundamentally changes the traditional design and manufacturing concept to provide a better economic ratio and more compact structure for the processing of gearbox components. The use of laser welding gears requires the processing of the entire ring long tooth. The circle is then cut into a number of ring gears. Then welded to the drive shaft according to the requirements of the gear box.
Laser processing technology has been widely used in many fields. With the deepening of laser processing technology, equipment and process research, it will have broader application prospects.
Roller bearing, one of the two members of the class of rolling, or so-called antifriction, bearings (the other member of the class is the Ball Bearing). Like a ball bearing, a roller bearing has two grooved tracks, or races, but the balls are replaced by rollers. The rollers may be cylinders or truncated cones. Only radial loads (i.e., loads perpendicular to the axis of rotation) can be carried when the rollers are cylindrical, but with conical rollers both radial and thrust, or axial, loads (i.e., ones parallel to the axis of rotation) can be carried. A needle bearing has cylindrical rollers that are relatively slender and completely fill the space between the races; in many cases the inner race is dispensed with. Because there is line contact between a roller and the races, while in a ball bearing there is point contact, in a given space a roller bearing can carry a greater radial load than a ball bearing.
Roller bearings are used in all main shaft and auxiliary drive shaft applications to support pure radial load, and allow for axial shaft elongation due to temperature changes with no additional load effect on the bearing. They are usually located at the ends of the turbine and compressor shafts and are often mounted in a housing, but separated from it by a layer of pressurized oil known as a squeeze film damper.
In many cases, instead of having a separate inner race for roller bearings, the [inner race" is an integral part of the shaft or stub shaft. This reduces complexity, weight, and build-up of concentricity tolerances. Overall, this is cost effective, but the cost of replacement or repair is likely to be higher than for separate inner races.
Roller Bearing,Self-Aligning Roller Bearing,Double Row Roller Bearing,Neddle Roller Bearing
Shijiazhuang Longshu Mechanical & Electrical Equipment Trading Co., Ltd. , https://www.longsbearing.com