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An alloy welding wire

A technology of alloy welding wire and weighing scale, which is applied in welding equipment, welding medium, metal processing equipment, etc., can solve the problems of low-temperature impact toughness and poor consistency of alloy welding wire, and improve low-temperature impact toughness and tensile strength. Degree, effect of enhanced strength and hardness

Inactive Publication Date: 2019-10-22
BEIJING GUODIAN FUTONG SCI & TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the defects in the prior art that the alloy welding wire has poor composition consistency with nuclear power or thermal power steel and the alloy welding wire has low low-temperature impact toughness, and further provides an alloy welding wire with good composition consistency with nuclear power or thermal power steel alloy welding wire for nuclear power or thermal power steel with excellent low-temperature impact toughness and preparation method thereof

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  • An alloy welding wire

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Embodiment 1

[0026] This embodiment provides an alloy welding wire. The alloy welding wire includes the following components by weight percentage: C0.10%, Cu 0.40%, Cr 0.15%, Si 0.50%, Mn 1.30%, Ni 1.50%, Mo 0.50%, Nb 0.020%, Re 0.05%, and more The amount is iron and unavoidable impurities.

[0027] The preparation method of the above alloy welding wire includes the following steps:

[0028] 1) Use 0.5t clean steel smelting furnace, select low S and P raw materials for alloy welding wire for smelting and refining. During the smelting process, the content of O, N, H and other gases and the content of some impurity metals are controlled to ensure that the alloy welding wire is finally obtained S≤0.006%, P≤0.01%, [O]≤50ppm, [H]≤3ppm, N≤0.01, As+Pb+Sn+Sb+Bi≤200ppm;

[0029] 2) The refined molten steel is cast and hot-rolled into wire rod with a diameter of 4.5mm. After inspection, the wire rod has a qualified chemical composition and a qualified surface quality. The surface of the wire rod is smoot...

Embodiment 2

[0031] This embodiment provides an alloy welding wire. The alloy welding wire includes the following components by weight percentage: C0.05%, Cu 0.60%, Cr 0.15%, Si 0.50%, Mn 1.50%, Ni 1.00%, Mo 0.20%, Nb0.020%, Re 0.005%, and more The amount is iron and unavoidable impurities.

[0032] The preparation method of the above alloy welding wire includes the following steps:

[0033] 1) Use 0.5t clean steel smelting furnace, select low S and P raw materials for alloy welding wire for smelting and refining. During the smelting process, the content of O, N, H and other gases and the content of some impurity metals are controlled to ensure that the alloy welding wire is finally obtained S≤0.006%, P≤0.01%, [O]≤50ppm, [H]≤3ppm, N≤0.01, As+Pb+Sn+Sb+Bi≤200ppm;

[0034] 2) The refined molten steel is cast and hot rolled into a wire rod with a diameter of 5mm. After inspection, the wire rod has a qualified chemical composition and a qualified surface quality. The wire rod has a smooth surface wi...

Embodiment 3

[0036] This embodiment provides an alloy welding wire. The alloy welding wire includes the following components by weight percentage: C0.07%, Cu 0.50%, Cr 0.25%, Si 0.50%, Mn 1.30%, Ni 1.50%, Mo 0.20%, Nb 0.020%, Re 0.005%, and more The amount is iron and unavoidable impurities.

[0037] The preparation method of the above alloy welding wire includes the following steps:

[0038] 1) Use 0.5t clean steel smelting furnace, select low S and P raw materials for alloy welding wire for smelting and refining. During the smelting process, the content of O, N, H and other gases and the content of some impurity metals are controlled to ensure that the alloy welding wire is finally obtained S≤0.006%, P≤0.01%, [O]≤50ppm, [H]≤3ppm, N≤0.01, As+Pb+Sn+Sb+Bi≤200ppm;

[0039] 2) Cast and hot-roll the refined molten steel into wire rods with a diameter of 3mm. After inspection, the wire rods have qualified chemical composition and qualified surface quality. The surface of the wire rods is smooth with...

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Abstract

The invention discloses an alloy welding wire which is prepared from the following components in percentage by weight: 0.05 to 0.10 percent of C, 0.40 to 0.60 percent of Cu, 0.15 to 0.35 percent of Cr, 0.25 to 0.50 percent of Si, 1.00 to 1.50 percent of Mn, 1.00 to 1.50 percent of Ni, 0.20 to 0.50 percent of Mo, 0.010 to 0.40 percent of Nb, 0.005 to 0.05 percent of Re and the balance of iron and unavoidable impurities. According to the alloy welding wire, Ni, Cu, Cr, Mo, Mn and Nb are used as main components, and other components are used as auxiliary components, so that the similarity of the alloy welding wire to a steel material component to be welded is increased, and the comprehensive mechanical property of deposited metal is effectively improved. The alloy welding wire is applicable to welding of 1.15 Ni-0.65 Cu-Mo-Cb materials and similar steel types, particularly steel WB36CN1 for nuclear power.

Description

Technical field [0001] The invention belongs to the technical field of welding materials, and specifically relates to an alloy welding wire used for nuclear power or thermal power steel. Background technique [0002] As a country with many coals, the development of China’s thermal power industry has unique advantages. Thermal power technology is mature and low construction costs. It is the main force in China’s power development. The development of thermal power will pollute the environment. In the contemporary era of sustainable development, many However, nuclear power is still an indispensable energy source in China. As a clean energy source, nuclear power is of great strategic significance for meeting China’s power demand, optimizing energy structure, reducing environmental pollution, and promoting the sustainable development of economic energy. . [0003] Since the nuclear leak in Fukushima, Japan, nuclear power safety has received more attention. Because of the high flow rat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/30B23K35/40
Inventor 丛相州金秋亚盛慧彭先宽安锦平
Owner BEIJING GUODIAN FUTONG SCI & TECH DEV