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Do you know the basic information points of the pressure sen

time£º2019-04-16 10:52    source£ºair pressure sensor

Do you know the basic information points of the pressure sensor?

1. Check the size of the mounting hole
 
If the size of the mounting hole is not suitable, the threaded portion of the high-temperature melt pressure sensor is easily worn during the installation process, which not only affects the sealing performance of the device, but also prevents the sensor from fully functioning and may even pose a safety hazard. . Only the proper mounting holes can avoid thread wear (Thread Industry Standard 1/2-20UNF2B). Mounting holes can usually be tested with a mounting hole gauge to make the appropriate adjustments.
2. Choose the right location
 
When the high temperature melt pressure sensor is installed too close to the upstream of the production line, the unmelted material may wear the top of the sensor; if the high temperature melt pressure sensor is installed in the too late position, the high temperature melt pressure sensor and the screw There may be a stagnant zone of molten material between the strokes, where the melt may degrade and the pressure signal may transmit distortion; if the high temperature melt pressure sensor is too deep into the barrel, the screw may touch the high temperature during the rotation. The top of the melt pressure sensor causes damage.
3. Correct installation
 
Usually, the damage of the high temperature melt pressure sensor is caused by the improper installation position. If the sensor is forcibly installed in an excessively small hole or an irregular hole, the vibration film of the sensor may be damaged by the impact. Choosing the right tool to machine the mounting hole is beneficial to control the size of the mounting hole. In addition, the proper mounting torque is good for forming a good seal, but if the installation torque is too high, it will easily cause the high temperature melt pressure sensor to slip off, in order to prevent this. This occurs, usually by applying a release compound to the threaded portion of the sensor prior to installation.
4. Keep the mounting holes clean
 
Keeping the mounting holes clean and preventing clogging of the melt is important to ensure proper operation of the equipment. All high temperature melt pressure sensors should be removed from the barrel to avoid damage before the extruder is cleaned. When the sensor is removed, the melt may flow into the mounting hole and harden. If the residual melt is not removed, the top of the melt may be damaged when the high temperature melt pressure sensor is installed again. The cleaning kit can The melt residue is removed, however, repeated cleaning processes may deepen the damage to the high temperature melt pressure sensor caused by the mounting holes. If this happens, measures should be taken to raise the position of the high temperature melt pressure sensor in the mounting hole.

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