Light ultrahigh-strength and corrosion-resistant weldable titanium alloy wire rope for crane and preparation method of titanium alloy wire rope

A technology of titanium alloy and cranes, which is applied in the field of lightweight, ultra-high-strength, corrosion-resistant, weldable titanium alloy wire ropes for cranes and its preparation field, which can solve the problem of titanium alloy materials that do not meet the requirements of the preparation process of ultra-fine wires and the strength level, and easily broken wires , poor process plasticity and other issues, to achieve good technical application and market prospects, excellent corrosion resistance and antifouling performance

Active Publication Date: 2021-08-13
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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  • Light ultrahigh-strength and corrosion-resistant weldable titanium alloy wire rope for crane and preparation method of titanium alloy wire rope
  • Light ultrahigh-strength and corrosion-resistant weldable titanium alloy wire rope for crane and preparation method of titanium alloy wire rope
  • Light ultrahigh-strength and corrosion-resistant weldable titanium alloy wire rope for crane and preparation method of titanium alloy wire rope

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 light ultrahigh-strength and corrosion-resistant weldable titanium alloy wire rope for a crane. Alloy comprises the following components in percentage by weight of 2.0 to 6.0 percent of Cr, 1.0 to 3.0 percent of Mn, 2.0 to 5.0 percent of Co, 2.0 to 6.0 percent of Zr, 2.0 to 4.0 percent of Al, 0.2 to 0.5 percent of Cu, 0.05 to 0.10 percent of Dy, less than 0.3 percent of total content of impurity elements C, H, O and N, and the balance of Ti. The titanium alloy wire rope disclosed by the invention has high specific strength, good plasticity and toughness and excellent corrosion resistance and antifouling property, and the weight is reduced by 40% or above; and the titanium alloy wire rope has good technical application and market prospects in the fields of hoisting equipment under the environmental conditions of ports, coasts, ocean platforms and coastal areas.

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 Applications(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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