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Flap discs, also known as sandpaper flap discs, sand cloth grinding wheels, are composed of multiple sand cloth sheet pieces glued together and arranged in a fan-shaped overlapping manner on a tray. The bonding angle between each piece of sand cloth and the tray plane is 10°-30°. The new arrangement of sand cloth can make the cutting angle reach the maximum when the sand cloth wheel is used for grinding and polishing the workpiece, ensuring the synchronous consumption of the base material and abrasive material of the sand cloth wheel, significantly improving the overall wear resistance and grinding efficiency of the flat flap discs sand cloth wheel, and extending the service life of the sand cloth wheel.
The calcined flat sand cloth wheel is made by calcining first-grade brown corundum at a high temperature of over 2000 degrees Celsius, which makes the corundum abrasive more hard and sharp. Its grinding force and wear resistance are one to two times that of ordinary sand, greatly improving the labor efficiency of operators and having a more obvious cost performance. It is currently favored by the market. The sand cloth is made of imported materials, and the sand cloth is arranged in small pieces in a fan-shaped evenly distributed manner to ensure the best grinding effect. The grit size ranges from 36# to 600#, with 60# and 80# being the most common. It has a diameter of 4"-7" and is installed on angular polishing machines for grinding and finishing of welds and burrs on the edge of the workpiece. It can be interchanged with resin bowl-shaped grinding wheels and has the advantages of good elasticity, high efficiency, good heat dissipation, and low noise.
The bowl-shaped coated abrasive tools made of high-grade calcined sand cloth as the abrasive material through special processing is installed on electric or pneumatic angular polishing machines, suitable for finishing and grinding of iron and non-ferrous metals, stainless steel, stone, and plastic, as well as grinding of welds and burrs on stamped parts. It can be used interchangeably with resin bowl-shaped grinding wheels. Blinds have the advantages of high elasticity, good self-sharpening, high grinding efficiency, good heat dissipation, low noise, and long service life. People from all walks of life attach great importance to the power of technology. From governments and society to enterprises and factories, their attention to it is increasing, and the investment in technological innovation has also significantly increased. For a long time, the development of mold enterprises has gradually changed due to the shortage of technological investment, talent loss, and backward facilities. The current digital production technology has ignited a battle to stimulate vitality.
Through long-term application experiments, it has been shown that digital mold production technology can effectively improve the design level of molds, shorten the time from design to production, shorten the production cycle of molds, and improve the quality of molds. Due to the above advantages, digital mold production technology has gradually become the mainstream technology in the automotive mold production field. The so-called digital mold production technology refers to the application of computer technology or computer-aided technology in the mold design and manufacturing process.
For example, the successful experience of applying computer-aided technology in automotive mold enterprises, digital automotive mold production technology mainly includes considering and analyzing manufacturability during design to ensure the success of the process. Auxiliary technology for mold surface design, and the development of intelligent surface design technology. In the process of casting CAE-assisted analysis and simulation stamping forming, predict and solve possible defects and forming problems.
Foundry mold enterprises need to transform their mechanisms, develop specialized production, enhance market awareness, and promote the adjustment of the industrial structure of foundry mold industry. In the past, under the planned economy, large enterprises had mold workshops with strong manufacturing capabilities and technical strength, which accounted for a considerable proportion of the mold output value. Except for a small number of standard parts purchased externally, most of the work was completed by mold factories, resulting in low specialization and standardization.