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Self-protective full-position high ductility flux-cored wire

A flux-cored welding wire, all-position technology, applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems of high price and difficult supply progress, and achieve high production efficiency, excellent process performance and Excellent mechanical properties and strong wind resistance

Active Publication Date: 2010-12-15
TIANJIN GOLDEN BRIDGE WELDING MATERIALS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, only a few welding consumable factories in the United States such as Lincoln and Hubert have developed welding consumables with such properties, but there are problems such as relatively expensive prices and difficult supply schedules, and such products have not been developed in China.

Method used

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  • Self-protective full-position high ductility flux-cored wire
  • Self-protective full-position high ductility flux-cored wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: (%) a kind of self-shielding all-position high-toughness flux-cored welding wire, it comprises adopting common commercially available SPCC-SD cold-rolled low-carbon steel strip as raw material, adopts flux-cored transition alloy mode, uses general-purpose flux-cored welding wire The core welding wire manufacturing process produces this product, which is characterized in that the formula of the welding wire flux core is made of calcium carbonate CaCO 3 40%, calcium fluoride CaF 2 13%, barium fluoride BaF 2 16%, aluminum oxide Al 2 o 3 5%, aluminum-magnesium alloy 13%, metallic iron powder 5%, metallic manganese alloy 4%, metallic nickel 4%.

Embodiment 2

[0017] Embodiment 2: (%) a kind of self-shielding all-position high-toughness flux-cored welding wire, it comprises adopting common commercially available SPCC-SD cold-rolled low-carbon steel strip as raw material, adopts flux-core transition alloy mode, uses general-purpose flux-cored welding wire The core welding wire manufacturing process produces this product, which is characterized in that the formula of the welding wire flux core is made of calcium carbonate CaCO 3 30%, calcium fluoride CaF 2 15%, barium fluoride BaF 2 10%, aluminum oxide Al 2 o 3 4%, aluminum-magnesium alloy 20%, metallic iron powder 8%, metallic manganese alloy 10%, metallic nickel 3%.

Embodiment 3

[0018] Embodiment 3: (%) a kind of self-shielding all-position high-toughness flux-cored welding wire, it comprises adopting common commercially available SPCC-SD cold-rolled low-carbon steel strip as raw material, adopts flux-cored transition alloy mode, uses general-purpose flux-cored welding wire The core welding wire manufacturing process produces this product, which is characterized in that the formula of the welding wire flux core is made of calcium carbonate CaCO 3 36%, calcium fluoride CaF 2 12%, barium fluoride BaF 2 20%, aluminum oxide Al 2 o 3 4%, aluminum-magnesium alloy 10%, metallic iron powder 10%, metallic manganese alloy 5%, metallic nickel 3%.

[0019] The above-mentioned embodiments are summarized in Table 1, and the mechanical properties of the embodiments are shown in Table 2.

[0020] Table 1:

[0021]

[0022] Table 2: Mechanical Properties of Examples

[0023]

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Abstract

The self protective overall position high flexible drug core weld wire uses common SPCC-SD cold forging low carbon steel belt as the original material with drug core transitional alloy, featuring in the formulation of carbonas 30-40%, fluoride 22-35%, Al2O3 4-5%, aluminum-magnesium alloy 10-20%, metal powder 5-10%, manganese alloy 4-12% and nickel 3-4%. It has semi automatic welding in continuouswelding wire delivery, free from air protection, strong in wind resistance, high in productivity, low in comprehensive cost, easy for welding, big in application shares, with good process operation and dynamic features.

Description

(1) Technical field: [0001] The invention belongs to the field of welding materials, in particular to the welding of steel for high-strength pipelines. The self-protected all-position high-toughness flux-cored welding wire of the present invention is mainly aimed at the welding of long-distance pipelines, (two) background technology: [0002] With the development of high-strength and high-toughness steel for pipelines, there is an urgent need to use a welding consumable that is simple in construction, good in mechanical properties, high in efficiency, and easy in process operation. At present, only a few welding consumable factories in the United States, such as Lincoln and Hubert, have developed welding consumables with such properties, but there are problems such as relatively expensive prices and difficult supply schedules, and such products have not been developed in China. (3) Contents of the invention: [0003] The purpose of the present invention is to design a sel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/368
Inventor 侯杰昌侯永和
Owner TIANJIN GOLDEN BRIDGE WELDING MATERIALS GRP