Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Seamless solid core aluminum-calcium core-spun yarn and production system and method thereof

A production system and technology of cored wire, applied in the field of alloy cored wire, can solve the problems such as the inability to store the cored wire for a long time, the reduction of calcium grade and content, the calcium oxidation failure of calcium grade, etc. The effect of enhanced penetration, increased strength and toughness

Active Publication Date: 2016-06-22
MAANSHAN XINGDA METALLURGICAL NEW MATERIAL
View PDF10 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome that the outer layer steel strip of the existing aluminum-calcium cored wire is not tightly coated on the inner layer core powder (wire), and the sealing performance is relatively poor, thus causing calcium in the core powder (wire) to easily occur. Oxidation failure or calcium grade reduction prevents the cored wire from being stored for a long time, or when high-frequency seamless welding is used, the high temperature generated at the welding site will inevitably cause oxidation on the surface of the inner core calcium wire, thereby reducing the calcium grade and content , as well as the problem of easy wire breakage in the wire feeding process and low calcium yield, a seamless solid aluminum-calcium cored wire and its production system and production method are provided

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Seamless solid core aluminum-calcium core-spun yarn and production system and method thereof
  • Seamless solid core aluminum-calcium core-spun yarn and production system and method thereof
  • Seamless solid core aluminum-calcium core-spun yarn and production system and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 As shown, a seamless solid aluminum-calcium cored wire in this embodiment includes an inner core 11 and an outer skin 10 covering the surface of the inner core 11, the outer skin 10 is a seamless metal aluminum tube, and the The inner core 11 is metal calcium wire or calcium aluminum wire, but it is not limited to calcium metal wire, and other metal wires that need to be coated can also be used, such as titanium wire. The inner core 11 of the present embodiment is metal calcium Wire, and the metal aluminum tube is a seamless metal aluminum tube formed by extruding and perforating an aluminum rod. The outer surface of the above-mentioned metal aluminum tube is provided with an inert passivation layer 9, the inert passivation layer 9 of the present embodiment is an organically modified silicone resin layer, and other inert passivation layers can also be selected, and the outer diameter of the metal aluminum tube is Ф9.0-13mm, inner diameter Ф6-8mm, tole...

Embodiment 2

[0051] Such as figure 1 As shown, a seamless solid aluminum-calcium cored wire in this embodiment includes an inner core 11 and an outer skin 10 covering the surface of the inner core 11, the outer skin 10 is a seamless metal aluminum tube, and the The inner core 11 is a calcium aluminum wire, and the metal aluminum tube is a seamless metal aluminum tube formed by extruding and perforating an aluminum rod. The outer surface of the metal aluminum tube is provided with an inert passivation layer 9, and the outer diameter of the metal aluminum tube is Ф9.0-13mm, the inner diameter is Ф6-8mm, the tolerance is -0.5mm, and the diameter of the calcium aluminum wire is Ф6- 8mm, the interference fit between the aluminum tube and the calcium aluminum wire. In the cored wire of this embodiment, the weight of the calcium-aluminum wire accounts for 30-55%, the weight of the Al tube accounts for 45-70%, and the total weight of the core wire is ≧285g / m.

[0052]The production system of th...

Embodiment 3

[0059] Such as figure 1 As shown, a seamless solid aluminum-calcium cored wire in this embodiment includes an inner core 11 and an outer sheath 10 covering the surface of the inner core 11, the outer sheath 10 is a metal aluminum tube, and the inner core 11 is a titanium wire, and the metal aluminum tube is a seamless metal aluminum tube formed by extruding and perforating an aluminum rod. The outer surface of the metal aluminum tube is provided with an inert passivation layer 9, and the outer diameter of the metal aluminum tube is Ф9.0-13mm, the inner diameter is Ф6-8mm, the tolerance is -0.5mm, and the diameter of the titanium wire is Ф6-8mm , There is an interference fit between the aluminum tube and the titanium wire. In the cored wire of this embodiment, the weight of titanium wire accounts for 30-55%, the weight of Al tube accounts for 45-70%, and the total weight of the core wire is ≧285g / m.

[0060] The production system of the above-mentioned seamless solid aluminu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a seamless solid core aluminum-calcium core-spun yarn and a production system and method thereof, and belongs to the technical field of core-spun yarns. The core-spun yarn comprises an inner core and a sheath wrapping the surface of the inner core. The sheath is a metal aluminum pipe which is a seamless metal aluminum pipe formed by conducting extrusion punching on an aluminum bar. The production system comprises a dummy ingot extruding head, a heating furnace and a punching extruder. The to-be-machined aluminum bar sequentially passes through the heating furnace and the punching extruder. The heating furnace is used for heating the aluminum bar. The punching extruder is used for conducting punching extrusion on the heated aluminum bar to form the seamless metal aluminum pipe. The to-be-wrapped inner core penetrates into the aluminum bar through the dummy ingot extruding head. By means of the core-spun yarn, the complete, seamless and tight wrapping of the sheath is achieved, the sealing performance is good for the inner core, the oxidation failure of alloy elements in the inner core can be effectively avoided, and the yield of alloy elements of the inner core in molten steel can be increased by 8-10%.

Description

technical field [0001] The invention belongs to the technical field of alloy cored wire, and more specifically relates to a seamless solid aluminum-calcium cored wire and its production system and production method. Background technique [0002] With the advancement of steelmaking technology, especially the development of molten steel refining technology, the production of high-purity, high-quality, high-grade steel has become possible. Low-carbon aluminum-killed steel and some steel types that require extremely high purity mainly use LF-VD or RH furnaces to refine molten steel, and use wire feeding to deform inclusions in molten steel, thereby further improving the purity of molten steel , improve the pourability of molten steel, and can significantly increase the yield of alloys, reduce alloy consumption and steelmaking costs, shorten smelting time, and have significant economic benefits. [0003] At present, the alloy cored wires widely used in steel mills include calciu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/00
CPCC21C7/0056
Inventor 李国安王建国李寿全
Owner MAANSHAN XINGDA METALLURGICAL NEW MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products