What are the common vibration operations? What is it??
The impact of vibration on human body can be divided into whole body vibration and local vibration. Whole body vibration is mainly caused by the vibration source (vibration machine, vehicle, moving work platform) passing through the support part (foot and hip) of the body, spreading the vibration along the lower limbs or trunk, and then the vibration is transmitted to the operator's hands and arms through the vibration tools, vibration machine or vibration workpiece.
The frequency range of whole body vibration is mainly 1Hz~20Hz. The frequency range of local vibration action is 20Hz~1000Hz. The above division is relative. In a certain frequency range (such as below 100Hz), there are both local vibration and whole body vibration.
1. Local vibration operation: It mainly refers to various types of work using vibration tools, such as sand riveter, forger, driller, tamper, grinder, and users of electric saw and planer.
2. Whole body vibration operation: mainly the operators of vibrating machinery. For example, the source operator of the source truck and the operator of the truck mounted drilling rig; The generator workers in the drilling generator room and the vibration workers on the field mobile equipment such as the tractor operators for seismic operations and pre drilling operations, such as the forgers.
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What are the characteristics of stainless steel corrugated hose?
What are the characteristics of corrugated hose? Let's briefly introduce:
1. Good workability: stainless steel corrugated hose is thin-walled hose, which reduces the overall weight, greatly reducing the load of construction and construction time.
2. Corrosion resistance: the main body of the bellows is formed of 304 or 316L stainless steel, and both ends are made of stainless steel joints or carbon steel joints, with good corrosion resistance. The tightness is ensured.
3. High pressure resistance: considering many factors such as the practical working pressure, application environment and application of the bellows, all parameters have been carefully calculated and repeated experiments to ensure their safety under pressure in work.
4. Variety: the existing bellows diameter range: DN8-DN4000, others are customized according to customer requirements.
5. Anti shock and anti dislocation: stainless steel corrugated hose has good flexibility and displacement compensation characteristics.
6. Beautiful appearance: the appearance is clear, bright as new forever.
7. Seismic resistance and high speed
8. It can transmit torque by itself. In the operation of ordinary mechanical seal, it is necessary to add the structure of transmission seal 9. There are few leakage points.