Anti-corrosion oil tank and production method thereof
A production method and anti-corrosion technology, applied in packaging, construction, underwater structures, etc., can solve the problems of different quality change rate and performance retention rate, so as to improve anti-corrosion and anti-destruction ability, good anti-corrosion protection, and improve viscosity The effect of knot ability
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[0068] The preparation method of the metal anti-corrosion coating is as follows: add water-based epoxy resin, alloy powder and graphene, stir at a high speed of 600rpm-1200rpm for 5min-10min, then add polyamide resin and continue stirring for 5min-10min to obtain metal anti-corrosion coatings. coating.
[0069] Step (5) roughening the inner surface of the metal tank so that the roughness reaches Ra0.3-1.0;
[0070] Step (6) Coat the interface adhesive on the rough surface of the metal tank body, adhere the glass fiber chopped strand mat to the inner surface of the metal tank, cure the glass fiber chopped strand mat at a temperature above 20°C for more than 24 hours, and contact and press the cement A glass fiber inner layer is formed; finally, a glass fiber yarn soaked with an adhesive is adhered on the surface of the glass fiber inner layer, and a glass fiber protective layer is formed on the innermost layer of the metal tank body. The roughness treatment methods include las...
Embodiment 1
[0072] Embodiment 1: the making of metal tank body
[0073] Material selection: The stainless steel materials and welding consumables used to manufacture pressure vessels should comply with the corresponding national and industry standards. The stainless steel used to manufacture pressure vessels must not be delaminated, and cracks and scars are not allowed on the surface. Scale and pickling are not allowed on the surface of the stainless steel plate supplied by pickling.
[0074] Step (1): Cut the stainless steel material into a preset size, and clean the stainless steel material to remove surface rust, sundries, debris and dust, repair local scars, and clean the edge burrs of the plate; The welding slag burrs on the round roller are smoothed, and then the stainless steel material is rolled into a circle with a plate rolling machine, and then the joint is welded to form; the cylinder body of the metal tank is obtained.
[0075] The manufacture of stainless steel pressure ve...
Embodiment 2
[0078] Embodiment 2: the treatment of metal tank body weld seam
[0079] Step (3) Clean up the welding slag spatter on both sides of the weld seam of the cylinder, and use a cleaning agent to remove oil stains on the surface; pickle with pickling paste after mechanical polishing, and passivate with passivation paste after pickling; Use high-pressure water to clean the surface of the weld, and then dry the water.
[0080]The prescription of pickling paste in the step (3) is to contain 20% hydrochloric acid 20ml, 35% nitric acid 20g, bentonite 150g in every 100g water. The pickling operation is as follows: drop the pickling paste at room temperature to evenly coat the weld seam to form a 3mm coating, wash it with high-pressure water after 40 minutes of coating, and use a wire brush to lightly brush the surface until white acid-etched smoothness appears during the washing process surface;
[0081] The formula of passivation paste in the step (3) is to contain 60% nitric acid 30...
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