Preparation method of flux cored wire employing wet-mixing sintered medicinal powder

The technology of a flux-cored welding wire and a manufacturing method is applied in the manufacturing field of wet-mixed sintered powder, which can solve the problems of complex production process, high comprehensive cost, low production efficiency, etc., achieve excellent technical indicators, improve product quality, and reduce moisture absorption. effect of ability

Inactive Publication Date: 2010-02-24
杭州同皓电器有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The disk element method is a relatively mature manufacturing method in my country at present, but there are still many insurmountable problems in practice. First: lack of technical feasibility
Because the production technology of flux-cored welding wire is a comprehensive and multidisciplinary high-tech technology, the most critical index requirement for the quality of the final product of flux-cored welding wire is the stability of the filling ratio, while the manufacturing technology of the disc method is relatively complicated. As of now, it is impossible to guarantee the long-term and high-volume production requirements of this indicator
Second: the production efficiency is not high
Due to the complex production process and extremely low production efficiency, it cannot meet

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  • Preparation method of flux cored wire employing wet-mixing sintered medicinal powder

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Embodiment Construction

[0030] see figure 1 , with cold-rolled steel strip as the sheath raw material of flux-cored wire, with rutile and sintered powder as the main flux-cored flux, after strip slitting, powder mixing, powder drying, steel strip rolling into a "U"-shaped groove and Fill welding powder into the "U" groove, roll and close it into an "O" tube billet, and then further roll and draw it into a finished welding wire of Ф0.8-Φ2.4mm, which is characterized by the composition and content of the flux core for:

[0031] Drug core component volume ratio (%)

[0032] Rutile 40.5

[0033] Sintered powder 7

[0034] Fused magnesia 6.5

[0035] Titanium Iron 5

[0036] low manganese 6

[0037] Aluminum magnesium alloy 3

[0038] Magnesium Powder 1

[0039] iron powder 12

[0040] Zircon sand 1.5

[0041] Boron Iron 0.5

[0042] Silicon Manganese 12

[0043] Sodium fluoride 1.5

[0044] Cryolite 1.5

[0045] Quartz 2

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Abstract

The invention discloses a preparation method of flux cored wires, particularly a preparation method of flux cored wire employing wet-mixing sintered medicinal powder, using a cold rolling steel belt as the sheath raw material of a flux-cored wire, using rutile and sintered power as main flux cored welding flux, rolling the steel belt into a U-shaped groove through longitudinal cutting, power matching and flux power drying of the steel belt, and filling welding flux in the U-shaped groove, and the steel belt is rolled and combined into an O-shaped pipe blank and further rolled and drawn into finished wires of phi 0.8 to phi 2.4 mm. The invention reduces the specific surface area of the powder, decreases moisture absorption of the powder, simultaneously has the advantages of simple and reliable process and low cost, and is worth of popularization.

Description

technical field [0001] The invention discloses a method for manufacturing flux-cored welding wire, in particular to a method for using wet-mixed sintering powder. Background technique [0002] Flux-cored welding wire is a kind of high-efficiency, safe and new-type welding material that can continuously conduct electricity and automatically weld with flux inside and steel skin outside. It is an updated product of ordinary welding rods. Flux-cored wire welding has high production efficiency, good welding quality, low overall cost, and has a series of advantages such as stable arc, small spatter, and can adjust the composition and performance of deposited metal arbitrarily. It is more suitable for flexible manufacturing than other welding materials. It can adapt to the development of materials faster, so it has become a welding material vigorously developed by countries all over the world. Flux-cored welding wire can be used for connection welding and surfacing welding; it is ...

Claims

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Application Information

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IPC IPC(8): B23K35/40
Inventor 邵海建
Owner 杭州同皓电器有限公司
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