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Preparation method of super-long titanium/pipeline steel composite plate for oil and gas pipelines

A technology of oil and gas pipelines and composite plates, which is applied in metal rolling, manufacturing tools, welding equipment, etc., can solve the problems of unused oil and gas pipelines, and achieve the effects of ensuring uniformity of bonding, increasing speed, and excellent strength

Active Publication Date: 2017-01-11
XIAN TIANLI CLAD METAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing titanium / pipeline steel composite plate products, the base material is generally ordinary carbon steel or low alloy steel, and there is no special steel for pipelines, so it has not been used in oil and gas pipelines

Method used

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  • Preparation method of super-long titanium/pipeline steel composite plate for oil and gas pipelines
  • Preparation method of super-long titanium/pipeline steel composite plate for oil and gas pipelines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In this embodiment, the preparation of ultra-long titanium / pipeline steel composite plates for oil and gas pipelines includes the following steps:

[0030] Step 1. The metal block 5 is welded at the middle position of the long side of the base steel plate 1 by arc welding, and the metal plate 4 is welded at the middle position of the long side of the clad titanium plate 2 by argon arc welding, such as figure 1 As shown; the base steel plate 1 is an X65 pipeline steel plate, the test results of the impact energy of the base steel plate 1 at 0°C are 298J, 298J and 280J respectively, the length of the base steel plate 1 is 3000mm, the width is 2000mm, and the thickness is 50mm. The material of the metal block 5 is the same as that of the base steel plate 1, the length of the metal block 5 is 100 mm, the width is 50 mm, and the thickness is the same as that of the base steel plate 1; the clad titanium plate is a Gr1 titanium alloy plate, and the clad titanium plate 2 The le...

Embodiment 2

[0037] In this embodiment, the preparation of ultra-long titanium / pipeline steel composite plates for oil and gas pipelines includes the following steps:

[0038] Step 1. The metal block 5 is welded at the middle position of the long side of the base steel plate 1 by arc welding, and the metal plate 4 is welded at the middle position of the long side of the clad titanium plate 2 by argon arc welding, such as figure 1 As shown; the base steel plate 1 is an L390 pipeline steel plate, the test results of the impact energy of the base steel plate 1 at 0°C are 190J, 186J and 212J respectively, the length of the base steel plate 1 is 4000mm, the width is 3000mm, and the thickness is 120mm , the material of the metal block 5 is the same as that of the base steel plate 1, the length of the metal block 5 is 100mm, the width is 50mm, and the thickness is the same as that of the base steel plate 1; the clad titanium plate is a TA1 titanium alloy plate, and the clad titanium plate The len...

Embodiment 3

[0046] In this embodiment, the preparation of ultra-long titanium / pipeline steel composite plates for oil and gas pipelines includes the following steps:

[0047] Step 1. The metal block 5 is welded at the middle position of the long side of the base steel plate 1 by arc welding, and the metal plate 4 is welded at the middle position of the long side of the clad titanium plate 2 by argon arc welding, such as figure 1 As shown; the base steel plate 1 is an L450 pipeline steel plate, the test results of the impact energy of the base steel plate 1 at 0°C are 276J, 298J and 298J respectively, the length of the base steel plate 1 is 3000mm, the width is 1500mm, and the thickness is 85mm , the material of the metal block 5 is the same as that of the base steel plate 1, the length of the metal block 5 is 100mm, the width is 50mm, and the thickness is the same as that of the base steel plate 1; the clad titanium plate is a TA2 titanium alloy plate, and the clad titanium plate The leng...

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Abstract

The invention discloses a preparation method of a super-long titanium / pipeline steel composite plate for an oil-gas pipeline. The method comprises the following steps: 1. welding a metal block with a steel plate at a base layer, and welding a metal plate with a titanium plate at a composite layer; 2. polishing; 3. conducting explosive welding to prepare the composite plate; 4. selecting the qualified composite plate as a blank; 5. leveling and cutting the blank, and then conducting annealing treatment; 6. rolling the blank to obtain the plate, cutting the plate after leveling to obtain the super-long titanium / pipeline steel composite plate with the width being 500-3000 mm, the length being 8000-20000 mm and the thickness being larger than or equal to 10 mm. The preparation method disclosed by the invention utilizes the technologic process of combining the explosion composite method with the rolling method, so as to composite the steel plate at the base layer with the titanium plate at the composite layer to prepare the super-long titanium and pipeline steel composite plate for the oil-gas pipeline; the shear strength of the composite plate is higher than or equal to 180 MPa, and the composite plate meets the super-long requirement on the material for the petroleum and natural gas pipeline, and can be used as the material for the oil-gas pipeline.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation for oil and gas pipelines, and in particular relates to a method for preparing an ultra-long titanium / pipeline steel composite plate for oil and gas pipelines. Background technique [0002] Oil and gas pipelines can transport natural gas, crude oil or refined oil over long distances, and the transportation distance can reach hundreds or thousands of kilometers. , the pipe diameter is more than 200mm, and the largest one is 1220mm at present. Pipeline transportation is the most important transportation mode of oil and natural gas. Compared with railway, highway, water transportation and other transportation methods, it has the advantages of large transportation volume, airtight safety, easy management, and easy remote centralized monitoring. It is widely used all over the world and develop rapidly. However, because the oil and gas medium is flammable, explosive and easy to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB21B1/38B21B47/02B21B2001/386B23K20/08B23K2101/18
Inventor 李平仓赵惠朱磊毕宗岳魏永赵峰杨学山王云龙沈春豫刘燕平刘海璋李山云张建勋
Owner XIAN TIANLI CLAD METAL MATERIALS
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