Unlock instant, AI-driven research and patent intelligence for your innovation.

An ultra-high-strength and large-diameter steel wire main cable strand anchoring material and anchoring method

An ultra-high-strength, large-diameter technology, applied in bridges, bridge parts, bridge construction, etc., can solve problems such as limited temperature increase, insufficient compactness, large casting shrinkage holes, etc., to reduce the size of anchorage, The effect of reducing the anchorage length and reducing the size

Active Publication Date: 2020-03-10
JIANGSU FASTEN STEEL CABLE CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

), before the molten alloy flows to the lower part of the steel wire and infiltrates into the tiny gaps between the steel wires, the liquid alloy will quickly solidify into a solid, resulting in an effective grip between the steel wire bundle and the alloy The length is reduced, and the compactness cannot meet the requirements
If the method of increasing the casting temperature of the alloy melt is used to increase the fluidity of the melt, the temperature increase is limited and larger shrinkage holes will be generated due to the increase in temperature, and too high a temperature will affect the relevant properties of high-strength steel wire , it is difficult to implement

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
  • An ultra-high-strength and large-diameter steel wire main cable strand anchoring material and anchoring method
  • An ultra-high-strength and large-diameter steel wire main cable strand anchoring material and anchoring method
  • An ultra-high-strength and large-diameter steel wire main cable strand anchoring material and anchoring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] This embodiment relates to an anchoring material, which is used for anchoring the ends of the main cable strands of ultra-high-strength large-diameter steel wires above 6mm-2060MPa, and its chemical composition is Al 3.5%, Cu 1.8%, Mg 0.002%, by mass percentage, The rare earth element is 0.005%, and the casting temperature is controlled within the range of 440°C to 460°C. Rare earth elements are selected from La and Ce.

[0050] The method for filling and anchoring the main cable strands of the ultra-high-strength large-diameter steel wire includes the following steps

[0051] (1) Put the alloy ingot smelted according to the formula into a heating furnace to melt to form an alloy melt: Zn-Cu2% and Zn-Al10%, Zn-Al15%, Zn-Al30% alloy ingot according to a certain ratio according to theoretical calculation Match, put into the heating furnace, heat and melt and fully stir; Mg and rare earth elements are based on the fluidity of the alloy in actual production as Zn-Al10%-Mg-...

Embodiment 2

[0059] This embodiment relates to an anchoring material, which is used for anchoring the ends of the main cable strands of ultra-high-strength large-diameter steel wires above 60mm-2060MPa, and its chemical composition is 0.4% by mass percentage of Al, 2.0% of Cu, and 0.08% of rare earth elements , the rest is zinc, its casting temperature: 445 ℃ to 465 ℃, rare earth elements are selected from La and Ce.

[0060] The method for filling and anchoring the main cable strands of the ultra-high-strength large-diameter steel wire includes the following steps

[0061] (1) Put the alloy ingot smelted according to the formula into a heating furnace to melt to form an alloy melt: Zn-Cu2% and Zn-Al10%, Zn-Al15%, Zn-Al30% alloy ingot according to a certain ratio according to theoretical calculation Matching, put into the heating furnace, heating and melting and fully stirring; rare earth elements are selected in the form of Zn-Al10%-rare earth, Zn-Al15%-rare earth, Zn-Al30%-rare earth all...

Embodiment 3

[0069] This embodiment relates to an anchoring material, which is used for anchoring the ends of the main cable strands of ultra-high-strength large-diameter steel wires above 100mm-2060MPa, and its chemical composition is Al 5.5%, Cu 1.4%, Mg 0.005%, by mass percentage, Bi0.001%, the rest is zinc, and its casting temperature: 430°C to 450°C.

[0070] The method for filling and anchoring the main cable strands of the ultra-high-strength large-diameter steel wire includes the following steps

[0071] (1) Put the alloy ingot smelted according to the formula into a heating furnace to melt to form an alloy melt: Zn-Cu2% and Zn-Al10%, Zn-Al15%, Zn-Al30% alloy ingot according to a certain ratio according to theoretical calculation Matching, put into the heating furnace, heat to melt and fully stir; Mg is selectively added in the form of Zn-Al10%-Mg, Zn-Al15%-Mg, Zn-Al30%-Mg alloy ingots; Bi is Zn-Al10%-Mg Bi, Zn-Al15%-Bi, Zn-Al30%-Bi alloy ingots are selectively added; after stirri...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to an anchoring material and pouring anchoring method for an ultra-high strength large-diameter steel wire main cable strand. The pouring anchoring compactness reaches 95% or above and is increased by 3% compared with the compactness of traditional hot cast anchors. After pressing with an anchor, the retracting value of an alloy casting is not larger than 5 mm, the depth of alloy poured into a steel wire bundle can reach third fourths of a conic section of the anchor after the casting is dissected, and no shrinkage cavity is formed in the casting. According to chemical components of the anchoring material, aluminum, zinc and copper are used as an alloy base, and Mg and rare earth elements are further added, so that the anchoring material has good fluidity, pouring anchoring efficiency reaches 100%, the bonding length of steel wires is improved, and favorable conditions are provided for reducing the anchoring length of the high strength large-diameter steel wire cable strand and reducing the size of the anchor.

Description

technical field [0001] The invention relates to anchor filling anchors for steel wire main cable strands, in particular to an anchor tank material and an anchor tank method for ultra-high-strength steel wire strands. Background technique [0002] The main cable strand is the main force-bearing structure of the suspension bridge, and the steel wire is the basic force-bearing element of the main cable strand. If the suspension bridge adopts 127-￠6mm-2060MPa large-diameter high-strength steel wire main cable strands, it has the following advantages: 1) reduce the number of strands, reduce the space used for anchoring, and reduce the scale of anchorage; 2) reduce the distance between steel wires and air. 3) The overall volume ratio of the zinc-aluminum alloy coating or the zinc coating to the smooth steel wire in the main cable is reduced by about 60%, which reduces the corrosion resistance of the zinc-aluminum alloy and pure zinc The influence of variables and other factors on...

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 Patents(China)
IPC IPC(8): C22C18/04C22C18/02C22C1/03E01D19/16
CPCC22C1/03C22C18/02C22C18/04E01D19/16
Inventor 薛花娟赵军陈伟乐宋神友吴玲正强强吴琼刘健
Owner JIANGSU FASTEN STEEL CABLE CO LTD