Composite polyethylene (PE) powder thermally sprayed anticorrosion coating for petroleum and natural gas pipe
An oil and gas, anti-corrosion coating technology, applied in pipeline anti-corrosion/anti-rust protection, powder coatings, anti-corrosion coatings, etc., can solve the problems of product performance damage, large power consumption, waste, etc., to improve cathodic protection resistance, improve anti-corrosion Corrosion performance, material and power savings
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Embodiment 1
[0040] The powdered raw material components and weight percentages of thermal spraying are respectively:
[0041] SN105 low temperature curing epoxy powder 10%
[0042] SN102 Hot Melt Copolymer Adhesive 10%
[0043] SN101 modified PE / PP powder 80%
[0044] The above-mentioned three kinds of raw materials are continuously thermally sprayed on the surface of the derusted oil and gas steel pipe in sequence to form a composite PE powder thermal sprayed oil and gas pipeline anticorrosion coating.
Embodiment 2
[0046] The powdered raw material components and weight percentages of thermal spraying are respectively:
[0047] SN105 low temperature curing epoxy powder 5%
[0048] SN102 hot melt copolymer adhesive 15%
[0049] SN101 modified PE powder 80%
[0050] The above-mentioned three kinds of raw materials are continuously thermally sprayed on the surface of the derusted oil and gas steel pipe in sequence to form a composite PE powder thermal sprayed oil and gas pipeline anticorrosion coating.
Embodiment 3
[0052] The powdered raw material components and weight percentages of thermal spraying are respectively:
[0053] SN105 low temperature curing epoxy powder 30%
[0054] SN102 Hot Melt Copolymer Adhesive 20%
[0055] SN101 modified PE powder 50%
[0056] The above-mentioned three kinds of raw materials are continuously thermally sprayed on the surface of the derusted oil and gas steel pipe in sequence to form a composite PE powder thermal sprayed oil and gas pipeline anticorrosion coating.
[0057] The oil and gas pipeline anticorrosion coating technical index of the composite PE powder thermal spraying that above-mentioned embodiment prepares:
[0058] The technical indicators shall comply with the performance indicators of GB / T23257-2009 buried steel pipeline polyethylene coating (Polyethylene coating for buried steel pipeline). Indexes higher than GB / T23257-2009 should meet the requirements in Table 1.
[0059] Table 1 physical and chemical indicators
[0060]
[006...
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