Passive wireless water meter
A passive wireless and water meter technology, applied in the direction of liquid/fluid solid measurement, measurement capacity, instruments, etc., can solve the problems of large waste water pollutants, difficult treatment, difficult process, etc., to reduce raw material costs, high mechanical properties, Improve the effect of dispersion effect
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Embodiment 1
[0023] A passive wireless centralized water meter, which includes a casing, and the casing is prepared from the following raw materials in parts by weight:
[0024] 1 part of talc, 1 part of titanium carbide, 1 part of molybdenum disulfide, 2 parts of glass fiber, 2 parts of graphite fiber, 3 parts of kaolin, 3 parts of attapulgite, 4 parts of boric acid, 5 parts of hydroxyethyl cellulose, 5 parts of methyl siloxane, 6 parts of chitin, 8 parts of polycarbonate, 10 parts of phenolic resin, 13 parts of aluminum nitride, 16 parts of silicon carbide, 20 parts of aluminum oxide, 25 parts of copper powder, and 200 parts of iron powder.
[0025] The preparation method of the above-mentioned shell comprises the following steps:
[0026] Take each raw material according to the above parts by weight;
[0027] Add kaolin and attapulgite into the stirring reactor in turn, mix well, then add 2 times the weight of 1M hydrochloric acid, stir at 200 rpm for 5 minutes, centrifuge to remove th...
Embodiment 2
[0033] A passive wireless centralized reading water meter, which includes a casing, and the casing is prepared from the following raw materials in parts by weight: 2 parts of talcum powder, 2 parts of titanium carbide, 2 parts of molybdenum disulfide, 3 parts of glass fiber, and 3 parts of graphite fiber 5 parts of kaolin, 5 parts of attapulgite, 6 parts of boric acid, 7 parts of hydroxyethyl cellulose, 7 parts of polydimethylsiloxane, 8 parts of chitin, 10 parts of polycarbonate, 12 parts of phenolic resin, Aluminum nitride 15 parts, silicon carbide 20 parts, aluminum oxide 25 parts, copper powder 30 parts, iron powder 250 parts.
[0034] The preparation method of the above-mentioned shell comprises the following steps:
[0035] Take each raw material according to the above parts by weight;
[0036] Add kaolin and attapulgite into the stirring reactor in turn, mix well, then add 2 times the weight of 1M hydrochloric acid, stir at 200 rpm for 5 minutes, centrifuge to remove t...
Embodiment 3
[0042] Performance test of the passive wireless centralized water meter shell material prepared by the present invention:
[0043] Performance tests were performed on the shells prepared in Examples 1 and 2 of the present invention; the bending strength was tested according to ASTM D790; the tensile strength was tested according to ASTM D638; the notched impact strength was tested according to ASTM D256. The test results of the obtained materials are shown in Table 1:
[0044] Table 1
[0045] performance parameters
[0046] The present invention also detects the above-mentioned mechanical properties at -70°C, wherein the bending strength and tensile strength both maintain more than 95% in the 120-hour test, and have good stability.
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