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Metal wire of filling titanium dioxide flux

A technology of titanium dioxide and metal wire, applied in metal processing equipment, welding medium, welding rod characteristics, etc., can solve the problems that it is difficult to greatly improve the hygroscopicity of metal wire, and the hygroscopicity of metal wire has not been discussed, so as to reduce the amount of slag and The amount of spatter, the improvement of weld metal performance, and the effect of preventing disconnection

Active Publication Date: 2005-03-23
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Like the flux-filled wire described in JP-A-2000-254796, only the rutile-type TiO 2 and anatase TiO 2 ratio, it is difficult to greatly improve the hygroscopicity of the wire
In addition, the methods of manufacturing flux-filled wires described in JP-A-3-189093, JP-A-2-151395, and JP-A-4-53637 all determine the specific surface area of ​​the flux filled in the wire. Methods of improving stringiness of wires, not discussed for hygroscopicity of wires

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] As Example 1 of the present invention, a flux having a composition shown in Table 2 below is filled in a sheath made of mild steel metal having the composition shown in Table 1 below so that it becomes 15.0% by mass corresponding to the total mass of the wire, A titania-based flux-filled wire having a diameter of 1.2 mm was produced. The rest of Table 1 below is Fe and unavoidable impurities, and the rest of Table 2 below is SiO 2 , MgO, Al 2 o 3 , Fe-Mn, Fe-Si, iron powder and fluorine compounds, etc. In addition, the amount of C contained in the entire wire is set to 0.035 to 0.050% by mass. In addition, No. 1 shown in the following Table 2 is the composition of the flux used in the conventional titanium dioxide-based flux-filled wire. The specific surface areas of the fluxes in Table 2 below were obtained from the drawn wires and measured by the BET method.

[0037] Then, the hygroscopicity and soldering workability of No. 1 to No. 19 wires filled with fluxes ha...

Embodiment 2

[0040] Then, as Example 2 of the present invention, the sheath made of mild steel metal having the composition shown in Table 1 is filled with flux having the composition shown in Table 4 below, which is equivalent to 15.0% by mass of the total mass of the wire, A wire filled with a titania-based flux having a diameter of 1.2 mm was fabricated. The remainder of Table 4 below is SiO 2 , MgO, Al 2 o 3 , Fe-Mn, Fe-Si, iron powder and fluorine compounds, etc. In addition, the specific surface area of ​​the flux in the following Table 4 was measured by the BET method by extracting the flux from the drawn metal wire. In addition, the amount of C contained in the entire wire is the same as in the above-mentioned Example 1, and is set to 0.035 to 0.050% by mass. In addition, No. 20 shown in the following Table 4 is the composition of the flux used in the conventional titanium dioxide-based flux-filled wire.

[0041] Then, the hygroscopicity and soldering workability of No. 20 to ...

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Abstract

The wire has a steel outer shell which is filled with a flux in an amount of 10-20 mass% as the ratio to the total mass of the wire. The flux contains 10-60 mass% of titanium and titanium oxide in terms of TiO2, 0.5-10 mass% of sodium compound in terms of Na2O, and 0.5-10 mass% of potassium compound in terms of K2O. Additionally the specific surface area of the titanium oxide is adjusted to 0.4-2.0 m2 / g.To provide a titania-based flux cored wire for arc welding which gives excellent welding workability and weld metal performance, and has less moisture absorption quantity.

Description

technical field [0001] The present invention relates to a titanium dioxide-based flux wire filled with flux in a steel sheath, in particular to a titanium dioxide-based flux-filled wire for arc welding of carbon steel. Background technique [0002] Flux-filled wire is produced by filling a steel sheath with a specific flux. The amount and type of this flux are factors that determine the quality of the flux-filled wire, and have a significant impact on welding operability and weld metal properties. Among all kinds of flux-filled wires, especially the wires filled with titanium dioxide-based flux containing slag-forming agents for all-position welding can perform all-position welding, and at the same time, good welding operation can be obtained High reliability, high efficiency and weld metal performance, so it is used in a wide range of fields mainly shipbuilding and bridges. [0003] However, there is a disadvantage that hygroscopicity tends to occur in the flux-filled wire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/365B23K9/24B23K35/368B23K35/40
CPCB23K35/0266B23K35/3602B23K35/3607B23K35/3608B23K35/361B23K35/406
Inventor 日高武史桥本哲哉
Owner KOBE STEEL LTD
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