Continuous annealing furnace with furnace roll
Make various types of roller from small diameter (60mm) to large diameter (1600mm). In particular, the large diameter Furnace Roller used in continuous annealing production line with higher reliability is highly appraising. In addition, it also produces special roller for measuring temperature and equalizing temperature.
High speed wire rod mill at home, at the wire rolling mill, rod line and use of roller slit rolling mill ring, due to the work under the roll ring in relatively poor thermal conditions, therefore must be able to withstand the wear and corrosion of cooling water and the big rolling torque and so on, at present a lot of manufacturers adopt tungsten carbide tungsten carbide roll rings, but because the cost of tungsten carbide roll ring manufacturing high, caused the enterprise production costs rise, and in view of the actual situation, our factory successfully developed special wear-resistant alloy MSW66552 series, nearly half of the manufacturing cost is tungsten carbide, the effect of using basic tungsten carbide. The e product has been confirmed by the user, MSW66552 alloy product hardness 88HS, roll surface hardness difference less than 2HS, 6000C red hardness more than 82HS, roll body radial 30mm hardness difference less than 3HS, impact toughness more than 15J/CM2, fracture toughness more than 60Mpa. M1 /2.
Stabilizer Roller,Roller Stabilizer,Casting Stabilizer Roller,Centrifugal Casting Stabilizer Roller Jiangsu Huaye Special Steel Manufacturing Co., Ltd. , https://www.huayecasting.com
The traditional CNC machine tool adopts the feed method of rotating servo motor + ball screw, and has a long transmission chain, which makes it difficult to increase the acceleration and deceleration of the feed system. For decades, its maximum acceleration and deceleration have stayed at 0.1-0.2G (G=9.8m/s2). Because the feed distance of the machine tool is short and the acceleration has not reached the maximum feed rate, it must be decelerated, which limits the increase of the maximum feed speed of the machine tool and makes it difficult for high-speed machine tool development.
The development of high-power linear motors and the development of advanced frequency conversion control technologies provide favorable conditions for the development and development of high-speed feed systems. The workbench directly driven by the linear motor not only eliminates the intermediate transmission link and enhances the transmission efficiency, but also greatly improves the speed and acceleration of the feed system, and can be well developed for high speed machining.
GD-4 high-speed linear feed unit, GD-3 high-speed linear feed unit directly driven by a linear motor, the system structure shown in Figure 1. The system adopts a dynamic primary, fixed secondary, short primary, and long secondary structure, in which the primary is connected to the mounting surface of the workbench through the cooling plate, and the secondary is laid in series on the bed through the cooling plate. When the primary enters a three-phase alternating current, a traveling wave magnetic field is generated, and the secondary is cut so that the secondary generates a potential, thereby forming an induced current in the secondary closed loop. The secondary inductive current interacts with the primary alternating magnetic field to generate an electromagnetic thrust that causes relative motion between the primary and secondary. The speed of the motion is proportional to the speed of the travelling wave magnetic field. Using variable frequency speed control technology, by adjusting the frequency of the power supply to change the speed of the motor, the high-speed linear feed motion of the table can be achieved.
In the GD-3 linear feed unit, the maximum feed speed of the linear motor is 100m/min, the maximum starting thrust is 4550N, the rated thrust is 2000N, and the rated power is 8kW. The system adopts a grating measurement feedback device and the feed unit Closed-loop control, raster resolution of 3μm, control system structure.
Experimental Research on Linear Feed Unit of High Speed ​​CNC Machine Tools . The rapid development of modern aviation, aerospace, and automotive manufacturing places higher demands on manufacturing precision and processing efficiency. In order to realize high-precision, high-efficiency processing, in recent years, developed industrial countries such as the United States, Japan, and Germany have made great progress in the research and development of high-speed numerical control machine tools, and have made great progress in the research and development of high-speed numerical control machine tools. The rapid development of high-speed CNC machining technology has been achieved. Among them, the research of high-speed linear feed units is one of the key technologies for high-speed machining.