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Manufacture method of large-diameter self-protection multi-strand stranded welding wire

A technology of multi-strand stranded welding wire and manufacturing method, which can be used in manufacturing tools, welding media, welding equipment, etc., and can solve problems such as end spread

Active Publication Date: 2013-11-27
SUZHOU YINLI WELDING IND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Practice shows that the above-mentioned multi-strand welding wire is prone to the problem of loose ends during welding. How to solve the problem of loose ends during welding by controlling the winding parameters in the processing process is whether this kind of twisted welding wire can be applied. The essential

Method used

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  • Manufacture method of large-diameter self-protection multi-strand stranded welding wire
  • Manufacture method of large-diameter self-protection multi-strand stranded welding wire
  • Manufacture method of large-diameter self-protection multi-strand stranded welding wire

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Embodiment 1

[0042] Such as figure 2 , image 3 As shown, the large-diameter self-shielding stranded welding wire manufactured by the manufacturing method of Embodiment 1 of the present invention is composed of a central solid welding wire 1 and 6 outer wound flux cores tightly wound on the central solid welding wire 1 Composed of welding wire 2, the diameters of the central solid welding wire 1 and the outer wound flux-cored welding wire 2 are both: 0.8mm; or 1.0mm; or 1.2mm.

[0043] Figure 4 It is the production steps of the manufacturing method of the large-diameter self-shielding stranded welding wire of the present embodiment, including:

[0044] (1) Manufacture the outer wound flux cored wire, and manufacture it according to the conventional manufacturing method;

[0045] (2) Stranding is carried out on a stranding machine with adjustable tension. The central solid-core welding wire does not rotate. The tightening force F is wound around the central solid-cored wire; when the ...

Embodiment 2

[0050] Such as Figure 5 , Figure 6 Shown is that the large-diameter self-shielding multi-strand welding wire manufactured by the manufacturing method of the second embodiment of the present invention is composed of a central solid welding wire 1 and two layers of 18 outer layers tightly wound on the central solid welding wire 1. Composed of wound flux-cored welding wire 2, the diameters of the central solid-cored welding wire 1 and the outer wound flux-cored welding wire 2 are both: 0.8mm; or 1.0mm; or 1.2mm.

[0051] Figure 7 It is a production step diagram of Embodiment 2 of the manufacturing method of the large-diameter self-shielding stranded welding wire of the present invention. For the first layer of double-layer stranded welding wire, there are 6 outer-wound flux-cored welding wires that are tightly wound around the central solid-core welding wire; after winding, they are straightened and rolled; then wound on a twisting machine with adjustable tension In the sec...

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Abstract

The invention relates to a manufacture method of a welding wire, in particular to a manufacture method of a large-diameter self-protection multi-strand stranded welding wire, comprising the following steps of (1), manufacturing an outer winding flux-cored welding wire; (2), stranding on a stranding machine with adjustable tensioning force without rotating a center solid core welding wire, and rotating the outer winding flux-cored welding wire densely wound at the periphery of the center solid core welding wire around the center solid core welding wire with a spiral angle alpha and the tensioning force F; (3), straightening; (4), rolling up; and (5), sorting the welding wire in discs and packaging. The welding wire end of the large-diameter self-protection multi-strand stranded welding wire processed by the method can not spread in the welding process.

Description

technical field [0001] The invention relates to a method for manufacturing a welding wire, in particular to a method for manufacturing a large-diameter self-protecting multi-strand stranded welding wire. Background technique [0002] Self-shielded flux-cored wire is widely used in steel structure manufacturing, such as shipbuilding, boilers, containers, pipelines, bridges and marine engineering, as well as surface modification due to its no coating, no need for additional gas protection during welding, and easy alloying. Or repair and other surfacing fields. The maximum diameter of the existing self-shielding flux-cored wire is only 3.2mm, and it is limited to automatic welding. For semi-automatic welding, which is flexible and convenient in construction, simple in equipment and widely used, the maximum wire diameter is only 1.2mm. Improved productivity of shielded flux cored wire. [0003] Application number 200910027603.X is a multi-strand stranded welding wire, which d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/40
Inventor 时振陆兴华
Owner SUZHOU YINLI WELDING IND TECH CO LTD
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