Roughness Profilometer, also known as surface roughness meter, surface smoothness meter, surface roughness tester, roughness measurement meter, roughness tester, and other names. It has the characteristics of high measurement accuracy, wide measurement range, easy operation, portability, and stable operation. It can be widely used for the detection of various metal and non-metal processing surfaces. This instrument is a pocket instrument that integrates sensors and hosts, with handheld characteristics, making it more suitable for use in production sites. The exterior design is sturdy and durable, with significant resistance to electromagnetic interference, in line with current design trends. The application fields of roughness meters include: Profile Projector ,Roughness Profilometer,Roughness Measuring Instrument,Surface Roughness Tester,Roughness Tester,Mitutoyo Roughness Tester Zhejiang dexun instrument technology co., ltd , https://www.dexunmeasuring.com
1. Mechanical processing and manufacturing industry, mainly metal processing and manufacturing. Roughness meters were originally developed to detect the surface roughness of machined parts. Especially, stylus type roughness measuring instruments are more suitable for detecting hard metal surfaces. For example, the automotive parts processing and manufacturing industry, the mechanical parts processing and manufacturing industry, and so on. As long as these processing and manufacturing industries involve the surface quality of workpieces, the detection application of roughness meters is essential.
2. In the non-metallic processing and manufacturing industry, with the progress and development of technology, more and more new materials are applied to processing processes, such as ceramics, plastics, polyethylene, etc. Some bearings are now made of special ceramic materials, and pump valves are made of polyethylene materials. These materials have a hard texture, and some applications can replace metal materials to make workpieces. During production and processing, their surface roughness also needs to be tested.
3. With the continuous strengthening and improvement of the technology and functions of roughness meters, as well as their in-depth promotion and application, more and more industries have been found to require roughness detection. In addition to mechanical processing and manufacturing, roughness evaluation is also required in the production and processing of power, communication, electronics, such as couplings on switches, integrated circuit semiconductors, and even stationery, tableware, and other products used in people's daily lives The surface roughness of human teeth needs to be tested.
The hydraulic system of the Model 3070 Combine is used to control the lifting and lowering of the header, the reel lift, the stepless variable speed transmission, and the walking steering. It converts the mechanical output of the engine into hydraulic energy through a hydraulic pump, and then controls the hydraulic oil of the valve. Push the cylinder to reconvert it into mechanical energy to manipulate the relevant parts. The size of the system pressure depends on the load of the working profile, ie the pressure varies with the load. (1) The hydraulic system requires the use of the specified hydraulic pressure, and the type and grade are N46 low-condensation hydraulic oil. Do not use low-quality hydraulic or other oil, otherwise the system will malfunction. (2) The hydraulic oil will continuously generate heat in the cycle, and the fuel tank is also a radiator. The surface of the fuel tank must be kept clean so as not to affect the heat dissipation. The volume of the fuel tank is 15L. (3) When all working oil cylinders are retracted, add oil to 10-40 mm above the bottom surface of the port filter. Request 500h or change the pressure oil at the end of the harvest season and replace the filter. (4) When the filter is replaced, it can be screwed by hand or unscrewed by an actuating lever. The seal between the filter and its seat must be intact. Before the installation, the seal should be coated with lubricating oil. When the seal is tightly squeezed, tighten it tightly 3/4-4/5 times, and do not overtighten. If you leak oil, you can tighten it again. (5) After the hydraulic handle is used, it should be able to automatically return to the center; otherwise, the hydraulic system will cause high temperature and high temperature for a long time and cause damage to parts. The normal operating temperature of the hydraulic system should not exceed 60 degrees Celsius. The full hydraulic steering machine is labor-saving, and the normal use of power steering requires only 5N*m of torque. If there is a heavy steering, it should be trouble-free. The possible causes of heavy steering are as follows: The hydraulic oil quantity is less, the hydraulic oil number is incorrect, or the deterioration of the hydraulic pump is serious. The steering column bearing is rusted, the steering valve's power steering valve is not closed tightly, and steering gear is The safety valve has dirt stuck or the pressure is low. The possible causes of steering failure are as follows: the shrapnel breaks, the dial pin breaks, the linkage shaft opening is broken or deformed, the mutual position of the rotor and the linkage shaft is wrong, the two-way buffer valve fails, and the steering cylinder fails. In addition, it should be noted that the position of the steering oil inlet pipe and the return pipe cannot be reversed, otherwise it will damage the steering gear.