A day and night outdoor monitoring device
A technology for monitoring devices and shells, applied in general control systems, program control, computer control, etc., can solve problems such as harsh outdoor environments and lack of protective components, and achieve improved adhesion, strength, and corrosion resistance of the zinc layer Effect
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Embodiment 1
[0031] An outdoor monitoring device that can be used day and night, the transmission glass of the monitoring device is made of calcium aluminate glass, and the shell of the monitoring device is made of electro-galvanized steel plate;
[0032] The calcium aluminate glass contains by weight percentage of oxide components: aluminum oxide: 39%, calcium oxide: 37.8%, barium oxide: 11%, sodium oxide: 1.1%, potassium oxide: 2.3%, magnesium oxide: 3.2% %; antimony oxide: 4.3%, lanthanum oxide: 1.2%, impurity 0.1%;
[0033] The composition of the electro-galvanized steel sheet is calculated by weight percentage: C: 0.026%, Si: 0.33%, Mn: 1.1%, Ti: 0.09%, Nb: 0.06%, Als: 0.068%, RE: 0.069%, P : 0.005%, S: 0.002%, N: 0.002%, the balance is Fe and unavoidable impurities.
Embodiment 2
[0035] The calcium aluminate glass using the components of Example 1 is melted and casted, and then tempered after quenching. The calcium aluminate glass is subjected to cryogenic treatment at -96°C after tempering, and then quenched and tempered again in sequence. fire treatment.
Embodiment 3
[0037] The preparation steps of the electrogalvanized steel sheet adopting embodiment 1 component content comprises:
[0038] 1) According to the composition of the electro-galvanized steel sheet in Example 1, it is smelted and cast.
[0039] 2) Hot rolling, the initial rolling temperature is 1090°C, and the final rolling temperature is 880°C.
[0040] 3) Water cooling and coiling, the coiling temperature is 710°C.
[0041] 4) Cold rolling, cold rolling is divided into 8 rolling passes, and the reduction rate of each pass is 20.
[0042] 5) Annealing, heat the semi-finished product after cold rolling to 890°C in the annealing furnace, then cool it to 610°C in the furnace, and then take it out of the furnace and air cool it to room temperature.
[0043] 6) Surface treatment, the surface treatment is alkali washing - pickling - degreasing - rinsing.
[0044] 7) Zinc electroplating, the concentration of zinc sulfate in the electroplating solution is 108g / L, and the temperature...
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