Anti-corrosion fire hydrant spraying process
A fire hydrant and anti-corrosion technology, applied in anti-corrosion coatings, coatings, epoxy resin coatings, etc., can solve the problems of shortened service life, simple structure of fire hydrants, corrosion and aging, etc., to prolong service life and improve anti-corrosion performance , the effect of preventing erosion
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Embodiment 1
[0031] An anti-corrosion fire hydrant spraying process, the inner wall of the fire hydrant is sequentially provided with a first anti-corrosion layer and a first waterproof layer, and the outer wall of the fire hydrant is sequentially provided with a second anti-corrosion layer and a second waterproof layer from the inside to the outside , the spraying process includes the following preparation steps:
[0032] (1) Surface pretreatment
[0033] Carry out degreasing and roughening treatment on the surface of the fire hydrant; the degreasing treatment method is: first clean the fire hydrant with 1% sodium hydroxide for 20 minutes at a cleaning temperature of 50°C, and then put the fire hydrant into ethanol and acetone In the mixed solution, ultrasonically cleaned for 30 minutes, the mixed solution was mixed with ethanol and acetone in a mass ratio of 1:1;
[0034] The degreased fire hydrant is polished with sandpaper to enhance the roughness of the inner and outer walls of the f...
Embodiment 2
[0045] An anti-corrosion fire hydrant spraying process, the inner wall of the fire hydrant is sequentially provided with a first anti-corrosion layer and a first waterproof layer, and the outer wall of the fire hydrant is sequentially provided with a second anti-corrosion layer and a second waterproof layer from the inside to the outside , the spraying process includes the following preparation steps:
[0046] (1) Surface pretreatment
[0047] Carry out degreasing and roughening treatment on the surface of the fire hydrant; the degreasing treatment method is: first clean the fire hydrant with 1% sodium hydroxide for 25 minutes at a cleaning temperature of 55°C, and then put the fire hydrant into ethanol and acetone In the mixed solution, ultrasonically cleaned for 40min, the mixed solution was mixed by ethanol and acetone in a mass ratio of 2:1;
[0048] The degreased fire hydrant is polished with sandpaper to enhance the roughness of the inner and outer walls of the fire hyd...
Embodiment 3
[0056] An anti-corrosion fire hydrant spraying process, the inner wall of the fire hydrant is sequentially provided with a first anti-corrosion layer and a first waterproof layer, and the outer wall of the fire hydrant is sequentially provided with a second anti-corrosion layer and a second waterproof layer from the inside to the outside , the spraying process includes the following preparation steps:
[0057] (1) Surface pretreatment
[0058] Carry out degreasing and roughening treatment on the surface of the fire hydrant; the degreasing treatment method is: first clean the fire hydrant with 1% sodium hydroxide for 30 minutes at a cleaning temperature of 60°C, and then put the fire hydrant into ethanol and acetone In the mixed solution, ultrasonically cleaned for 50 minutes, the mixed solution was mixed by ethanol and acetone in a mass ratio of 3:1;
[0059] The degreased fire hydrant is polished with sandpaper to enhance the roughness of the inner and outer walls of the fir...
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Abstract
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