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Alloy wire suitable for constant-temperature sheath of petroleum conveying pipeline and preparation method of alloy wire

A technology for alloy wire and oil transportation, which is applied in metal rolling, pipeline heating/cooling, mechanical equipment, etc. It can solve the problems of inability to accurately control the resistivity and meter resistance of wire rods, improve mechanical properties, improve mechanical properties, and ensure The effect of resistivity

Inactive Publication Date: 2021-08-10
江苏青益金属科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide an alloy wire suitable for the constant temperature sheath of petroleum pipelines, which solves the problem that the resistivity and meter resistance of the wire cannot be accurately controlled in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] The present invention is applicable to the preparation method of the alloy wire material of the constant temperature sheath of the petroleum transportation pipeline, adopts the micro-alloying device, and the micro-alloying device comprises a graphite crucible, a wheel-type continuous casting machine and a rolling mill, and the wheel-type continuous casting machine is located at the outlet of the graphite crucible. At the material inlet, the disc-type continuous casting machine is connected to the rolling mill through a diversion groove. The disc-type continuous casting machine includes a wheel disc, which is provided with a U-shaped groove, and the diversion groove is located in the tangential direction of the lower part of the disc. Include the following steps:

[0030] Step 1. Use vacuum argon to protect the intermediate frequency induction melting furnace, place the crucible with electrolytic copper with a mass purity of not less than 99.9% into the intermediate frequ...

Embodiment 1

[0035] Step 1. Use vacuum argon to protect the intermediate frequency induction melting furnace, put the crucible with electrolytic copper into the intermediate frequency induction melting furnace to heat, and melt the electrolytic copper to obtain copper liquid. After the temperature of the copper liquid rises to 1180 ° C, according to the quality Percentage 0.5% Ni, 0.10% Mn, 0.15% Si Add Cu-50% Ni, Cu-30% Mn, Cu-30% Si master alloy to copper liquid and continue to melt to obtain microalloyed copper liquid A; After the temperature of copper solution A reaches 1180°C, add pure Sn ingots to the mixed solution according to the mass percentage of 0.4% Sn to continue melting to obtain microalloyed copper solution B; after the temperature of microalloyed copper solution B reaches 1180°C, Start the wheel-disk continuous casting machine, open the plunger-type sealing rod at the bottom of the crucible, so that the micro-alloyed copper liquid B flows into the U-shaped groove of the whe...

Embodiment 2

[0040] Step 1. Use vacuum argon to protect the intermediate frequency induction melting furnace, put the crucible with electrolytic copper into the intermediate frequency induction melting furnace to heat, and melt the electrolytic copper to obtain copper liquid. After the temperature of the copper liquid rises to 1185 ° C, according to the quality Percentage 0.8% Ni, 0.15% Mn, 0.2% Si Add Cu-50% Ni, Cu-30% Mn, Cu-30% Si to copper liquid and continue melting to obtain microalloyed copper liquid A; microalloyed copper After the temperature of liquid A reaches 1185°C, add pure Sn ingots to the mixed liquid according to the mass percentage of 0.6% Sn and continue melting to obtain microalloyed copper liquid B; after the temperature of microalloyed copper liquid B reaches 1185°C, start the wheel In the disc continuous casting machine, open the plunger-type sealing rod at the bottom of the crucible, so that the microalloyed copper liquid B flows into the U-shaped groove of the wheel...

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PUM

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Abstract

The invention discloses an alloy wire suitable for a constant-temperature sheath of a petroleum conveying pipeline and a preparation method of the alloy wire. Electrolytic copper is molten to obtain molten copper, after the temperature of the molten copper rises to a preset temperature, intermediate alloys of Cu-50% Ni, Cu-30% Mn and Cu-30% Si are added into the molten copper to continue to be molten according to components of, in mass percentage, 0.5%-0.8% Ni, 0.10%-0.15% Mn and 0.15%-0.20% Si; after the preset temperature is reached, pure Sn ingots are added into the mixed liquid to continue to be molten according to component of, in mass percentage, 0.4%-0.6% of Sn; after the preset temperature is reached, a melt is enabled to flow into a wheel disc type continuous casting machine from the bottom of a crucible for crystallization and solidification to obtain an ingot blank with a U-shaped section, the ingot blank is enabled to enter a rolling mill through a diversion trench, and a wire rod is prepared through a multi-pass rolling mold; and drawing forming and aging annealing are carried out on the wire rod to obtain the alloy wire rod. The resistivity, the meter resistance and the shaping machinability of a copper alloy can be ensured.

Description

technical field [0001] The invention belongs to the technical field of alloy materials, and relates to an alloy wire suitable for a constant temperature sheath of an oil transportation pipeline, and also relates to a preparation method of the alloy wire. Background technique [0002] With the development of the economy, the distance of oil transportation is getting longer and longer, stretching thousands of kilometers. During the process of cross-regional transmission, the temperature may change greatly, which directly affects the temperature of the pipeline. In order to prevent freezing, improve the fluidity of crude oil, reduce the viscosity, and ensure the efficiency of stable transportation, it is necessary to maintain and control the temperature of the oil pipeline at 65°C-105°C in engineering. Therefore, the current method is to wrap an electrically heated constant temperature jacket on the outer wall of the oil pipeline, and implant a heating wire with a certain resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/06C22C9/02C22C1/03B22D11/00C22F1/08C21D1/26C21D8/06B21B1/46B21B3/00F16L53/38
CPCC22C9/06C22C9/02C22C1/03B22D11/009B22D11/004C22F1/08C21D1/26C21D8/06B21B1/463B21B3/00F16L53/38B21B2003/005
Inventor 徐春杰张凯军路瑶涵郭灿张青山
Owner 江苏青益金属科技股份有限公司