Hot Melt Adhesive For Pearl Cotton 1. Pearl cotton is divided into porous type and ordinary type. For the porous type, it is necessary to pay attention to the fact that there can be no drawing during the viscose process, so it is necessary to choose the pearl cotton hot melt adhesive particles that are not drawn.
5. The pearl cotton is bonded with other materials, such as honeycomb cardboard. At this time, it is necessary to consider whether it can stick to the two materials of pearl cotton and cardboard, and select the appropriate hot-melt glue particles according to the actual requirements.
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The air pressure sensor of the small agricultural weather station is placed inside the casing of the collector, and the air pressure vent mouth communicates with the outside world. Therefore, we must always check whether there is any foreign matter in the air pressure vent plugged and contaminated, and ensure the air flow is clear. Periodically clean the inside of the collector chassis.
The power supply system for small agricultural weather stations should be regularly inspected to ensure normal power supply, reduce data missing due to power failures, and upload delays. The automatic station is equipped with a backup battery and is installed inside the collector chassis. It is an emergency backup when the AC power is cut off. It is not used when the power is normal. When the battery is not used for a long time and the battery is not discharged for a long period of time, it should be periodically powered off by using the battery to provide power. This can extend the service life of the battery, maintain the performance of the battery, and guarantee the absence of mains power. Under the provision of sufficient power, the normal battery voltage is above 12V. If the battery voltage is observed to be less than 11.5V or goes down, it is necessary to find the cause in time. Usually, small-scale agricultural weather stations should often monitor the system status of the software to check whether the battery voltage is normal.
In the course of operation, small agricultural meteorological stations will exhibit various types of faults, ensuring good working conditions for the elimination of various failures. It is essential for the development of agricultural measures to be carried out normally for ground monitoring. Applicators of small-scale agricultural meteorological stations should be familiar with their basic working principles, improve the level of maintenance and troubleshooting of small-scale agricultural meteorological stations, and ensure the normal operation of the instrument.
2. Pearl cotton is divided into white and colored. Generally, white pearl cotton is common, and colored pearl cotton requires transparent or consistent color hot melt adhesive particles for the color of hot melt adhesive.
3. Pearl cotton is divided into large and small pieces. The bonding process of large pieces of EPE takes a long time, and it is necessary to choose hot melt adhesive particles with a slower curing speed. The bonding process of small pieces of pearl cotton will be faster, and it is necessary to choose hot melt adhesive particles with fast curing speed.
4. There are different density in pearl cotton foam. The pearl cotton with a relatively high surface density needs to choose a more viscous pearl cotton rubber particle, because the pearl cotton with a high surface density is relatively less sticky.
Maintenance and Troubleshooting of Small Agrometeorological Stations
In the process of agricultural production, meteorological changes have a decisive role in the formulation and implementation of agricultural measures. The use of small agricultural meteorological stations has increased the accuracy and accuracy of observations, reduced the workload of staff, and improved work efficiency. However, there will be some problems in the use of small agricultural weather stations. To ensure the normal operation of the instrument, it is very important for daily maintenance of small agricultural weather stations.