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Lightweight, super-high-strength, corrosion-resistant, weldable titanium alloy wire rope for cranes and preparation method thereof

A titanium alloy, ultra-high-strength technology, applied in textiles, papermaking, textile cables, etc., can solve the problems of titanium alloy materials that do not meet the preparation process requirements and strength levels of ultra-fine wires, easily broken wires, poor process plasticity, etc., and achieve excellent Anti-corrosion performance and anti-fouling performance, the effect of good technical application and market prospect

Active Publication Date: 2021-10-01
XINXIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen that at present, the titanium alloys used in the marine engineering environment are all α-type alloys, which have a hexagonal close-packed structure. There are fewer slip systems that can be activated during the forming process, and the process plasticity is poor. Easy to break
In addition, in the existing titanium alloy system, there is no titanium alloy material that meets the preparation process requirements and strength level of ultra-fine wire (diameter Φ≤0.5mm)

Method used

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  • Lightweight, super-high-strength, corrosion-resistant, weldable titanium alloy wire rope for cranes and preparation method thereof
  • Lightweight, super-high-strength, corrosion-resistant, weldable titanium alloy wire rope for cranes and preparation method thereof
  • Lightweight, super-high-strength, corrosion-resistant, weldable titanium alloy wire rope for cranes and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]Embodiment 1: Ti-4Cr-Mn-5Co-4Zr-2Al-0.2Cu-0.1Dy alloy

[0034] 1) Weigh the raw materials according to the ingredients listed in Example 1, and calculate as 4.0wt.% chromium, 1.0wt.% manganese, 5.0wt.% cobalt, 4.0wt.% zirconium, 2.0wt.% aluminum, 0.2wt.% Copper, 0.1wt.% Dysprosium and industrial grade 1 sponge titanium composition ratio vacuum melting to prepare titanium alloy ingots,

[0035] 2) Blank forging and machining. After the ingot is heated, it is blanked on the press. The blanking temperature is 1100°C, the final forging temperature is 900°C, the single upsetting deformation is 40%, and the total deformation is 110%; Then it is forged into bars through multiple fires on hydraulic presses or extruders. The forging temperature is 950°C, the final forging temperature is 750°C, and the deformation of a single upsetting is 60%. Finally, it is forged into Φ65×1100mm bars, and Processed into Φ50×1000mm light rod.

[0036] 3) Preparation of titanium alloy wire rod. ...

Embodiment 2

[0041] Example 2: Ti-5Cr-3Mn-2Co-5Zr-2Al-0.3Cu-0.05Dy alloy

[0042] Weigh the raw materials according to the ingredients listed in Example 2, and calculate by 5.0wt.% chromium, 3.0wt.% manganese, 2.0wt.% cobalt, 5.0wt.% zirconium, 2.0wt.% aluminum, 0.3wt.% copper, 0.05wt.% Dysprosium and industrial grade 1 titanium sponge are proportioned to prepare titanium alloy ingots by vacuum smelting, and then the same steps as 2-8 in Example 1 are used to prepare titanium alloy wire ropes. The properties of the titanium alloy wire rope are shown in Table 1.

Embodiment 3

[0043] Embodiment 3: Ti-2Cr-3Mn-4Co-6Zr-2Al-0.4Cu-0.1Dy alloy

[0044] Weigh the raw materials according to the ingredients listed in Example 3, and calculate by 2.0wt.% chromium, 3.0wt.% manganese, 4.0wt.% cobalt, 6.0wt.% zirconium, 2.0wt.% aluminum, 0.4wt.% copper, 0.1wt.% Dysprosium and industrial grade 1 titanium sponge are proportioned to prepare titanium alloy ingots by vacuum smelting, and then the same steps 2-8 as described in Example 1 are used to prepare titanium alloy wire ropes. The properties of the titanium alloy wire rope are shown in Table 1.

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Abstract

The invention discloses a lightweight ultra-high-strength corrosion-resistant weldable titanium alloy wire rope for cranes. The weight percentage of the alloy is: Cr: 2.0-6.0%, Mn: 1.0-3.0%, Co: 2.0-5.0%, Zr: 2.0~6.0%, Al: 2.0~4.0%, Cu: 0.2~0.5%, Dy: 0.05~0.10%, the total content of C, H, O and N impurity elements is less than 0.3%, and the balance is Ti. The titanium alloy wire rope of the present invention has high specific strength and good plastic toughness, and has excellent corrosion resistance and antifouling performance at the same time, and the weight is reduced by more than 40%; it is suitable for lifting equipment in port coasts, ocean platforms and coastal areas And other fields have good technical application and market prospects.

Description

technical field [0001] The invention relates to an alloy wire rope, in particular to a lightweight ultra-high-strength corrosion-resistant weldable titanium alloy wire rope for cranes suitable for marine engineering environments and a preparation method thereof. Background technique [0002] At present, lifting equipment mainly uses steel wire ropes, which carry almost all the lifting, lifting, and transportation weight in the world, and this "lifeline" closely related to safety is generally used in the open air, and the sun and rain will make the wire ropes corrosion. Especially in the marine atmospheric environment, such as my country's offshore drilling platforms and port and coastal lifting equipment, a large number of steel wire ropes are required, and the damage caused by corrosion is even more serious. In actual use, the impact of corrosion on the mechanical properties of steel wire ropes is far more than that of broken wires and wear. Corrosion is the main reason af...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D07B1/06C22C14/00C22F1/18C22C1/03B21C37/04
CPCB21C37/04C22C1/03C22C14/00C22F1/183D07B1/0673D07B2205/3085D07B2401/2025
Inventor 杨治军魏俊颐郎少庭侯树森曹鋆汇王广龙
Owner XINXIANG UNIV
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