Anti-drop method used for sintering epoxy powder anti-corrosive counterweight tube

A technology of sintering epoxy powder and counterweight pipe, which is applied in the direction of anti-corrosion/anti-rust protection of pipelines, pipes, rigid pipes, etc., can solve the problems of easy slippage of the coating and poor bonding performance, and achieves enhanced working conditions. The effect of improving the resistance to shearing
CN101063500AInactive Publication Date: 2007-10-31CHINA NAT OFFSHORE OIL CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA NAT OFFSHORE OIL CORP
Publication Date
2007-10-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an anti-slip and anti-run method used for hot-melt epoxy powder antiseptic additional weight, comprising (1) sanding process on the surface of steel pipe, (2) wrapping an antiseptic layer of hot-melt epoxy powder outside of the steel pipe, (3) wrapping adhesive which is olefin copolymer outside of the antiseptic layer, (4) daubing anti-slip particles which are polyethylene or profax particles on the adhesive, (5) daubing concrete additional weight layer on the anti-slip particles. The invention using the anti-slip technology increases the shear capacity of the antiseptic layer and the concrete layer and the adaptability for working condition of sea pipe-laying.
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Description

technical field

[0001] The invention relates to an anti-slip technology between a pipeline anti-corrosion layer and a counterweight layer, in particular to an anti-slip method for fusion-bonded epoxy powder anti-corrosion counterweight pipes, which is applicable to the technical field of submarine pipelines. Background technique

[0002] At present, the structure of the fusion-bonded epoxy powder anti-corrosion weight pipe is "working steel pipe + epoxy anti-corrosion layer + concrete weight layer". Due to the smooth outer surface of the epoxy powder anti-corrosion coating, the bonding performance between it and the concrete coating is poor, and slipping between the coatings is easy to occur when the pipeline is laid. Contents of the invention

[0003] The purpose of the present invention is to provide an anti-slip method suitable for fusion-bonded epoxy powder anti-corrosion weight pipes, which improves the shear resistance of the anti-corrosion layer and the concrete wei...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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