王中王鉄算盘开奖结果白小姐心水-摇钱树334435内部四肖

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Name:Shenzhen hollow shaft wholesale
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Use
"Fixing unit for copiers and laser printers (one of the core components). The toner image adsorbed on the paper will be printed, and the melted toner will be immersed in the printing paper by a pressurized hot melt method to form a fixed image. The process is called "fixing".
The carbon powder adsorbed on the paper is a fine particle which is kneaded by a hot resin and carbon powder. When the paper with the carbon powder adsorbed passes through the gap between two high and small gap metal drums, carbon The resin in the powder dissolves and is tightly pressed against the paper together with the carbon powder, thereby forming a permanent image, and the entire process of laser printing is also completed. The melting temperature of the toner is about 100 ° C, and the temperature of the heat roller is related to the speed at which the paper passes, and is generally between 150 and 180 ° C. The drum is cleaned of residual powder and light to remove the remaining charge, which is the next cycle. The laser printer uses a composite hot pressing method to complete the fixing using the ""fixing unit". The working process of toner image fixing is as follows:
When the printing paper carrying ""Toner Image"" is entered between the heating roller and the pressure rubber roller in the fixing device by the paper guide, the heating roller is heated by the heating lamp (185 ° C), and at the same time, due to the pressure rubber roller The pressure acts to melt the toner into the printing paper. The surface of the heating roller is coated with a Teflon coating, which is not easy to adhere to the toner. Some models also have a PTFE film on the surface of the pressure roller, which is good for the toner on the back side of the double-sided printing. The heat-fixed printing paper is separated from the heating roller by the separating claw, and is discharged through the paper discharge roller to complete the fixing process.
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A through hole is formed in the center of the shaft body, and an inner key groove is formed in the through hole. The outer surface of the shaft body is machined with a stepped cylinder and has a key groove, and the central through hole of the shaft is sleeved with the spindle of the pressing shaft. The input power is transmitted directly to the squeeze spindle through the drive gear mounted on the cylinder on the outer surface of the shaft.
Feature editing
The space occupied by the hollow shaft is relatively large, but the weight can be reduced. According to the mechanical analysis of the material, when the torque is transmitted through the shaft, the effect of transmitting the effective torque is greater as the outer section is viewed from the radial section. A thicker shaft diameter is required when the shaft needs to transmit a large torque. Since the effect of transmitting torque at the axial portion is small, hollow is generally used to reduce the weight of the rotating shaft.

The space occupied by the hollow shaft is relatively large, but the weight can be reduced.
According to the mechanical analysis of the material, when the torque is transmitted through the shaft, the effect of transmitting the effective torque is greater as the outer section is viewed from the radial section. A thicker shaft diameter is required when the shaft needs to transmit a large torque. Since the effect of transmitting torque at the axial portion is small, hollow is generally used to reduce the weight of the rotating shaft.


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