Ultrahigh strength gas protection welding wire and manufacturing method thereof

A gas-shielded welding wire, ultra-high-strength technology, applied in the direction of manufacturing tools, welding media, welding equipment, etc., to achieve good welding performance, low production cost, and good economic benefits

Active Publication Date: 2015-05-13
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The shielding welding wire involved in this Chinese patent document adds expensive W and microalloying element Re

Method used

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  • Ultrahigh strength gas protection welding wire and manufacturing method thereof
  • Ultrahigh strength gas protection welding wire and manufacturing method thereof
  • Ultrahigh strength gas protection welding wire and manufacturing method thereof

Examples

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Embodiment Construction

[0053] The ultra-high-strength gas-shielded welding wire and its manufacturing method according to the present invention will be further explained and illustrated in conjunction with the accompanying drawings and specific examples. However, such explanations and illustrations do not constitute improper limitations on the technical solution of the present invention.

[0054] Table 1 lists the mass percentage distribution of each chemical element in the welding wire in Examples 1-5.

[0055] Table 1. (wt.%, the balance is Fe and other unavoidable impurities except P, S, Al, O, N and H elements)

[0056]

[0057] The welding wire in Examples 1-5 of this case is obtained by the following steps: smelting in an induction furnace, refining, continuous casting into a bloom, hot rolling, slow cooling, spinning into a wire rod, pickling, rough drawing, rough drawing When it is drawn to Ф2.2mm-Ф3.5mm, heat treatment is carried out, fine drawing and copper plating are carried out, and ...

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Abstract

The invention discloses an ultrahigh strength gas protection welding wire. The chemical components include, by mass percentage, 0.06-0.12 percent of C, 0.55-0.80 percent of Si, 1.60-1.95 percent of Mn, 0-0.20 percent of Cu, 0.10-0.35 percent of Cr, 0.10-0.50 percent of Mo, 1.00-1.60 percent of Ni, 0.01-0.20 percent of Ti, 0.0005-0.0060 percent of B, and the balance Fe and other unavoidable impurities. Accordingly, the invention further discloses a manufacturing method of the ultrahigh strength gas protection welding wire. The welding wire is small in alloy content and carbon content. Welding joint metal formed after the welding wire is welded has high strength, high low-temperature toughness and good plasticity, and the three priorities are matched well. The welding joint metal formed after the welding wire is welded further has good anti-cracking performance and welding performance.

Description

technical field [0001] The invention relates to a welding material and a manufacturing method thereof, in particular to a gas shielded welding material and a manufacturing method thereof. Background technique [0002] With the development requirements of high parameters, large scale and light weight of modern machinery and equipment, the use of steel with a strength level of 80kg and above has become the first choice for many domestic manufacturing industries. For example, cranes and concrete pump trucks in the field of construction machinery manufacturing, and hydraulic supports for coal machinery in the field of mining machinery manufacturing, or hydraulic pressure steel pipes in the field of hydropower industry. At the same time, related manufacturing fields such as port machinery, marine structures, passenger and freight vehicles, and special vehicles also require a large amount of high-strength steel. At the same time, since argon-rich gas shielded welding is an effici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30
CPCB23K35/3066B23K35/40B23K2103/04B23K35/0255B23K35/0261B23K35/30B23K35/3053B23K35/3073C22C38/02C22C38/42C22C38/44C22C38/50C22C38/54C22C38/58
Inventor 屈朝霞许磊夏立乾
Owner BAOSHAN IRON & STEEL CO LTD
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