Soil analysis plays an important role in the development and construction of modern agriculture. However, it is cumbersome for the analysis of soil in the early stage. To increase the speed of testing, it is necessary to achieve simultaneous rapid extraction of various nutrients. The combined rapid leaching must be compatible with the rapid-analysis system and must be significantly correlated with the plant's absorption of soil nutrients. In order to share technical data using routine analysis, it also needs to be significantly related to routine analysis. The soil nutrient speed meter is fast and accurate and reliable in the analysis of soil nutrients.

In the soil nutrient fast-analysis analysis, interference problems different from conventional analysis are often encountered. For example, when the potassium is measured, the conventional masking agent cannot be used because of the different pH of the extracting agent. Therefore, new masking methods and masking agents must be researched and developed. Again, conventional methods for the determination of trace elements usually need to be extracted to achieve the purpose of increasing the concentration of the test solution and reducing interference. In order to simplify the operation, the soil nutrient quick tester usually does not pass the extraction in order to improve the portability, so it is necessary to develop anti-interference ability. Stronger masking technology.

As a special instrument and portable instrument, the soil nutrient speed meter is widely used in order to reduce the cost and weight, but the filter has poor monochromatism, resulting in a large line error, and many products are linear. Errors range from 4% to 8%. The proportion of total errors in measurement is too large. At present, better instruments use interferometric or thin-film filters, or use intelligent software for error correction. The linearity error can reach 2%. Within ~3%, it basically reaches the level of grating type II spectrophotometer. In addition, in order to improve the sensitivity and stability of the violet-blue region, light sources and detectors should be optimized and light source stabilization techniques should be used.

Excavator Cylinder Piston Rod Seals

Installation and application of piston rod seal for excavator hydraulic cylinder
The installation and application of hydraulic cylinder piston rod seals in excavators mainly include the following aspects:
1. Applying lubricating oil: Before installing the seal, the surface of the piston rod must be coated with lubricating oil to facilitate the installation and use of the seal.
2. Install the seal: Install the seal on the piston rod in sequence, taking care not to pinch or bend the seal.
3. Pressing the seal: After installing the seal, special tools need to be used to press the seal tightly to ensure its tightness and stability.
4. Check the sealing effect: After installing the sealing element, it is necessary to check the sealing effect. It can be detected by observing the working status of the hydraulic cylinder or using tools such as leak detectors.
5. Application scenario: The piston rod seal of excavator hydraulic cylinder is mainly used in the hydraulic system of construction machinery such as excavators, loaders, and bulldozers to prevent hydraulic oil leakage and ensure the normal operation of the machine.
In summary, the installation and application of hydraulic cylinder piston rod seals in excavators is a very important part of the hydraulic system, and must be strictly operated in accordance with regulations to ensure the normal operation and safety of the machine.

Excavator hydraulic cylinder piston rod seal, hydraulic cylinder piston seal, sealing kit

Safe Seal Technology Co., Ltd. , https://www.jsspreals.com