How to solve the Oil leakage phenomenon of stainless Steel Seismic Meter.
Stainless steel shockproof watch, the medium added inside the watch case is 500 silicone oil, the silicone oil is not easy to deteriorate in contact with air for a long time at 150 ℃, and the oxidation is slow when it comes into contact with oxygen and chlorine at 200 ℃. Its use temperature can reach 200 ℃, freezing point at-5 ℃, relatively high viscosity, excellent chemical stability and electrical insulation function, but also moisture-proof and water-proof.
Most of other units choose glycerin or transformer oil, mainly because the price factor is 55 yuan for a kilogram of silicone oil, but only more than 10 yuan for a kilogram of glycerin and transformer oil, and 0.5 kilograms for a meter with 100 shockproof surfaces. the cost of using silicone oil has increased, but the chemistry is not messy, and the chemical disorder of glycerin or transformer oil is not good, so all our stainless steel shock meters are filled with silicone oil.
There is also fluorine oil to choose from.
Stainless steel shockproof meter.
There is oil leakage at the joint of some stainless steel shock gauges, the joint of the pressure gauge and the gauge shell are welded by argon arc welding, and the overpressure test is used to test whether there is leakage between the instrument joint and the gauge shell, so as to solve the problem of instrument oil leakage and oil leakage. the shockproof pressure meter produced by the general pressure gauge unit uses screws to fix the instrument joint on the outside of the instrument shell, and the three screws are the three leakage points.
We fix the instrument joint inside the meter case to solve the problem of oil leakage from the instrument screws, and there is the instrument cover, which adopts two sealing rings, and the instrument still does not leak oil after the cover ring is removed, and the oil leakage problem will not occur until the instrument cover is destroyed.
