Production technology of steel tube with high-elasticity heat-resistant anti-corrosion abrasion-proof nano composite material coating

A nano-composite material and production process technology, applied in coatings, devices for coating liquid on the surface, anti-corrosion coatings, etc., can solve problems such as insufficient adhesion, poor corrosion resistance, and impact on the life of water injection pipes and oil extraction pipes. The effect of saving tons of steel and reducing production costs

Inactive Publication Date: 2008-01-23
中油新星纳米工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the liner (coating) has one or more disadvantages such as pinholes, poor plasticity, poor corrosion resistance, unstable heat resistance, and insufficient adhesion in a hot state, the service life of the water injection pipe and the

Method used

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  • Production technology of steel tube with high-elasticity heat-resistant anti-corrosion abrasion-proof nano composite material coating
  • Production technology of steel tube with high-elasticity heat-resistant anti-corrosion abrasion-proof nano composite material coating

Examples

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Effect test

Embodiment 1

[0032] Embodiment 1: as shown in Figure 1, select inner diameter 30-500 steel pipe for use, steel pipe length 6000mm-12000mm; Its technological process is:

[0033] Sandblasting of steel pipes: Use corundum sand with a particle size of φ1-5mm to sandblast the inner and outer surfaces of steel pipes in a special spray room to remove corrosion products such as rust on the inner and outer walls of steel pipes until a new metal surface is evident. Sandblasting should reach ST level 2.5 standard;

[0034] Blowing and preheating: It is best to transfer the sandblasted steel pipe to the spraying workshop immediately after spraying. Before spraying, use compressed air to blow off the floating sand and dust on the inner wall of the steel pipe, and then preheat it in a preheating furnace at 40°C-50°C for about Remove water and moisture on the inner wall of the tube for half an hour;

[0035] Spraying: The preheated steel pipe enters the thermal spraying room through the hydraulic devic...

Embodiment 2

[0046] Embodiment 2: On the technical basis of embodiment 1, add 5% organosilicon epoxy modified resin ES-06 and 2% butyl acetate by weight ratio in its described titanium alloy nanocomposite material component .

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Abstract

A steel tube with a high stretch, heat resistance, anti-corrosion, anti-abrasion Nami compound material coating layer production technique is provided, which comprises: use emery to proceed spraying seed on the inner and outer surface of the steel tube to remove the iron dust erosion product of the inner and outer wall of the steel tube; use compressed air to blow off the floating sand and dust which passes through the inner surface of the steel tube, then preheat in a preheat furnace to remove water and moist on the inner wall of the tube; proceed titanium alloy compound material spray finishing to the inner surface of the steel tube after preheating to form a coating layer; make the steel tube after spray finishing rotate with the tube axle and the coating layer level evenly and the surface of the tube is smooth and neat; then make the coating layer solid completely to get finished steel tube; the titanium alloy compound material is composed of several kinds titanium alloy Nami powder as active addition agent, optimized resin and addition agent, the steel tube with the coating layer can be used as oil well flow string or water inlet to meet the requirements under the working condition of 2000m to 5000m deep well, which has long service life and be used for saving a large amount of steel material and reducing production cost.

Description

technical field [0001] The invention relates to a coating and a production process of a steel pipe with a high-elasticity, heat-resistant, corrosion-resistant and wear-resistant coating. The steel pipe is suitable for oil well production pipes and water injection pipes meeting the requirements of 2000m-5000m deep well operations. Background technique [0002] High elastic, heat-resistant, corrosion-resistant and wear-resistant coated composite steel pipes are of great significance to oilfield exploitation. There are more than 300 million meters of oil production pipes and more than 150 million meters of water injection pipes in my country's oilfields. The number of new oil wells and updated water injection pipes added every year is even greater. They have long been used for corrosion protection by nitriding, nickel-phosphorus plating, powder coatings, and composite resins. Because the liner (coating) has one or more disadvantages such as pinholes, poor plasticity, poor corro...

Claims

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Application Information

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IPC IPC(8): B05D7/14B05D7/24B05D3/00C09D5/10
Inventor 辛湘杰
Owner 中油新星纳米工程技术有限公司
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