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Continuous casting rod for petroleum drilling tool and welding process of continuous casting rod

A welding process and oil drilling technology, applied in the field of remanufacturing, can solve the problems of affecting exploration and production work, discarding oil drilling tools, and high maintenance costs, and achieve the effects of high hardness, improved surface performance, and extended service life.

Inactive Publication Date: 2017-11-24
安徽鼎恒再制造产业技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of oil exploration and exploitation, it is necessary to use oil drilling tools for processing. The wear resistance and corrosion resistance of oil drilling tools are relatively high. After a period of use, oil drilling tools will wear to a certain extent. In severe cases, it will affect the normal exploration and mining work, and it is necessary to replace the severely worn oil drilling tools in time. However, this method has high maintenance costs, and the replaced worn oil drilling tools are discarded, causing serious resources. waste

Method used

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  • Continuous casting rod for petroleum drilling tool and welding process of continuous casting rod
  • Continuous casting rod for petroleum drilling tool and welding process of continuous casting rod
  • Continuous casting rod for petroleum drilling tool and welding process of continuous casting rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A continuous casting cast rod for oil drilling tools, comprising the following components in mass percentage:

[0017]

[0018] The low-oxygen chromium powder includes the following components in mass percentage: C is 0.44%, Si is 0.37%, Mn is 0.50%, Ni is 0.030%, P is 0.035%, S is 0.01%, Cu is 0.01%, Cr for the margin.

[0019] The high-purity tungsten powder includes the following components in mass percentage: 0.001% of Al, 0.001% of As, 0.0003% of Bi, 0.001% of C, 0.003% of Cd, and the balance of W.

[0020] The rare earth material includes the following components in mass percentage: Fe is 0.2%, Si is 0.03%, Ca is 0.01%, Mg is 0.01%, Al is 0.01%, Ni is 0.001%, C is 0.05%, O is 0.03% %, Pr is the balance.

[0021] The invention discloses a welding process of continuous casting cast rods for petroleum drilling tools. The process step is: adopting an oxygen-acetylene carbonization flame surfacing welding method to surfacing a workpiece.

[0022] Preheating treat...

Embodiment 2

[0025] A continuous casting cast rod for oil drilling tools, comprising the following components in mass percentage:

[0026]

[0027] The low-oxygen chromium powder includes the following components in mass percentage: C is 0.37%, Si is 0.17%, Mn is 0.80%, Ni is 0.01%, P is 0.01%, S is 0.035%, Cu is 0.030%, Cr for the margin.

[0028] The high-purity tungsten powder includes the following components in mass percentage: 0.0005% of Al, 0.0005% of As, 0.0001% of Bi, 0-0.002% of C, 0-0.001% of Cd, and the balance of W.

[0029] The rare earth material includes the following components in mass percentage: 0.1% of Fe, 0.01% of Si, 0.005% of Ca, 0.005% of Mg, 0.05% of Al, 0.0005% of Ni, 0.01% of C, and 0.0% of O %, Pr is the balance.

[0030] The invention discloses a welding process of continuous casting cast rods for petroleum drilling tools. The process step is: adopting an oxygen-acetylene carbonization flame surfacing welding method to surfacing a workpiece.

[0031] Preh...

Embodiment 3

[0034] A continuous casting cast rod for oil drilling tools, comprising the following components in mass percentage:

[0035]

[0036] The low-oxygen chromium powder includes the following components in mass percentage: C is 0.4%, Si is 0.2%, Mn is 0.7%, Ni is 0.02%, P is 0.02%, S is 0.03%, Cu is 0.02%, Cr for the margin.

[0037] The high-purity tungsten powder includes the following components in mass percentage: 0.001% of Al, 0.001% of As, 0.0002% of Bi, 0.003% of C, 0.003% of Cd, and the balance of W.

[0038] The rare earth material includes the following components in mass percentage: Fe is 0.15%, Si is 0.02%, Ca is 0.01%, Mg is 0.01%, Al is 0.05%, Ni is 0.001%, C is 0.04%, O is 0.02% %, Pr is the balance.

[0039] The invention discloses a welding process for continuous casting cast rods for petroleum drilling tools. The process steps are: adopting tungsten argon arc welding method to carry out surfacing welding on workpieces.

[0040] Preheating treatment should ...

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PUM

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Abstract

The invention relates to a continuous casting rod for a petroleum drilling tool and a welding process of the continuous casting rod. The continuous casting rod comprises the following components including, by mass, 4%-7% of activated carbon powder, 16%-21% of low-oxygen chromium powder, 7%-9% of high-purity tungsten powder, 5%-7% of silicon metal, 6%-7% of water-fog method iron powder, 3%-6% of rare earth materials and the balance cobalt powder. A welding layer formed by the continuous casting rod can be used for effectively remedying the abrasion size of the petroleum drilling tool; and meanwhile, the surface performance of the petroleum drilling tool can be improved, the abrasive resistance and the corrosion resistance are improved, the abraded petroleum drilling tool is recovered and reused, the cost is reduced, and the service life of the petroleum drilling tool is prolonged.

Description

technical field [0001] The invention relates to the technical field of remanufacturing, in particular to a continuous casting rod for an oil drilling tool and a welding process thereof. Background technique [0002] Petroleum is one of the important energy sources for human beings, and it is used in many fields of human beings. In the process of oil exploration and exploitation, it is necessary to use oil drilling tools for processing. The wear resistance and corrosion resistance of oil drilling tools are relatively high. After a period of use, oil drilling tools will wear to a certain extent. In severe cases, it will affect the normal exploration and mining work, and it is necessary to replace the severely worn oil drilling tools in time. However, this method has high maintenance costs, and the replaced worn oil drilling tools are discarded, causing serious resources. waste. There is an urgent need for a method that can recycle oil drilling tools. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K5/18B23K9/167B23K9/04
CPCB23K5/18B23K9/04B23K9/167B23K35/3046
Inventor 程敬卿
Owner 安徽鼎恒再制造产业技术研究院有限公司