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Short-process preparation method of Ti-Al-Nb-Zr-Mo alloy hot-rolled plate

A ti-al-nb-zr-mo, short-process technology, applied in the field of alloy material rolling, can solve the problems of high plate manufacturing cost, low comprehensive yield, high processing cost, etc., to shorten the manufacturing process, The effect of improving the comprehensive yield and reducing the production cost

Active Publication Date: 2021-04-30
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned process has the disadvantages of long process, low comprehensive yield, high processing cost, etc., resulting in high plate manufacturing cost and greatly limited application

Method used

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  • Short-process preparation method of Ti-Al-Nb-Zr-Mo alloy hot-rolled plate
  • Short-process preparation method of Ti-Al-Nb-Zr-Mo alloy hot-rolled plate
  • Short-process preparation method of Ti-Al-Nb-Zr-Mo alloy hot-rolled plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A short process preparation method for a Ti-Al-Nb-Zr-Mo alloy hot-rolled plate, comprising the following steps:

[0037] (1) According to the following mass ratio ingredients:

[0038] Aluminum niobium alloy 6.3 wt.%

[0039] Aluminum beans 4.05 wt.%

[0040] Zirconium sponge 1.5 wt.%

[0041] Aluminum molybdenum alloy 1.5 wt.%

[0042] Sponge titanium 86.65 wt.%;

[0043] (2) After mixing the materials prepared in step (1), take an appropriate amount of the mixture as a bulk material, press the rest of the mixture into blocks, dry at 120°C for 5 hours, and cool with the furnace to obtain a briquette;

[0044] (3) Spread the bulk material in step (2) in the cooling bed of the EB furnace equipped with seven electron guns, and then put the appropriate amount of briquette material in step (2) into the feeding area of ​​the EB furnace;

[0045] (4) At a vacuum degree of 1.8×10 -3 When torr, turn on electron guns 1 to 5 to smelt the bulk mixture in the cooling bed, con...

Embodiment 2

[0056] A short process preparation method for a Ti-Al-Nb-Zr-Mo alloy hot-rolled plate, comprising the following steps:

[0057] (1) According to the following mass ratio ingredients:

[0058] Aluminum niobium alloy 5.9 wt.%

[0059] Aluminum beans 4.45 wt.%

[0060] Zirconium sponge 2.0 wt.%

[0061] Aluminum molybdenum alloy 1.6 wt.%

[0062] Sponge titanium 86.05 wt.%;

[0063] (2) After mixing the prepared materials in step (1), take an appropriate amount of mixed material as bulk material, press the rest of the mixed material into blocks, dry at 100°C for 6 hours, and cool with the furnace to obtain briquettes;

[0064] (3) Spread the bulk material in step (2) in the cooling bed of the EB furnace equipped with seven electron guns, and then put the appropriate amount of briquette material in step (2) into the feeding area of ​​the EB furnace;

[0065] (4) At a vacuum degree of 1.8×10 -3 When torr, turn on electron guns 1 to 5 to smelt the bulk mixture in the cooling b...

Embodiment 3

[0076] A short process preparation method for a Ti-Al-Nb-Zr-Mo alloy hot-rolled plate, comprising the following steps:

[0077] (1) According to the following mass ratio ingredients:

[0078] Aluminum niobium alloy 5.7 wt.%

[0079] Aluminum beans 4.77 wt.%

[0080] Zirconium sponge 2.5 wt.%

[0081] Aluminum molybdenum alloy 1.7 wt.%

[0082] Sponge titanium 85.33 wt.%;

[0083] (2) After mixing the prepared materials in step (1), take an appropriate amount of mixed material as bulk material, press the rest of the mixed material into blocks, dry at 100°C for 6 hours, and cool with the furnace to obtain briquettes;

[0084] (3) Spread the bulk material in step (2) in the cooling bed of the EB furnace equipped with seven electron guns, and then put the appropriate amount of briquette material in step (2) into the feeding area of ​​the EB furnace;

[0085] (4) At a vacuum degree of 3.5×10 -3 When torr, turn on electron guns 1 to 5 to melt the bulk mixture in the cooling be...

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Abstract

The invention relates to a short-process preparation method of a Ti-Al-Nb-Zr-Mo alloy hot-rolled plate. The short-process preparation method is characterized by comprising the following steps: 1) material preparing; 2) material mixing and block pressing; 3) charging into an electron beam gun EB furnace; 4) performing vacuum melting to obtain a Ti-Al-Nb-Zr-Mo alloy slab ingot; 5) heating the Ti-Al-Nb-Zr-Mo alloy slab ingot to 950-1050 DEG C, keeping the temperature for 6-7 hours, and feeding the Ti-Al-Nb-Zr-Mo alloy slab ingot into a rolling mill for 8 passes of rolling in the first fire; 6) heating the Ti-Al-Nb-Zr-Mo alloy slab ingot to 940-965 DEG C, keeping the temperature for 2-3 hours, and feeding the Ti-Al-Nb-Zr-Mo alloy slab ingot into the rolling mill for 7 passes of rolling in the second fire; 7) heating the Ti-Al-Nb-Zr-Mo alloy slab ingot to 920-930 DEG C,keeping the temperature for 1-2 h, and feeding the Ti-Al-Nb-Zr-Mo alloy slab ingot into the rolling mill for 6 passes of rolling in the third fire; and (8) keeping the temperature of 860-910 DEG C for 1-3 h for annealing, carrying out cooling to the room temperature, then carrying out coping, acid pickling, straightening and shearing treatment, and obtaining the Ti-Al-Nb-Zr-Mo alloy plate. By shortening the manufacturing technological process, the comprehensive yield of the hot-rolled plate is increased to about 80%, and the machining cost is reduced by 20%-30%.

Description

technical field [0001] The invention relates to a short-process preparation method of a Ti-Al-Nb-Zr-Mo alloy hot-rolled plate, belonging to the technical field of alloy material rolling. Background technique [0002] Ti-6Al-3Nb-2Zr-1Mo titanium alloy (that is, TA31 titanium alloy) not only has low density, high specific strength, good plasticity and strong corrosion resistance, but also has seawater erosion resistance, non-magnetic, high stress corrosion fracture toughness and impact Excellent properties such as toughness and weldability, especially its outstanding seawater resistance and marine atmospheric corrosion resistance, are ideal for manufacturing submarines, ships, torpedoes, submersible shells and offshore oil drilling platforms, marine engineering equipment, offshore It is an excellent light-weight plate in the field of facilities and has broad application prospects. [0003] The existing process for preparing TA31 titanium alloy hot-rolled plates is as follows:...

Claims

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Application Information

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IPC IPC(8): C22C1/03C22B9/22C22B34/12C22C14/00C22F1/18C21D9/00B21B1/02B21B1/06B21B3/00
CPCC22C1/03C22B9/228C22B34/1295C22C14/00C22F1/183C21D9/0081B21B1/026B21B1/06B21B3/00B21B2201/06B21B2001/028B21B2261/20B21B2003/001B21B2261/04
Inventor 张玉勤张关梅邓亚杰蒋业华
Owner KUNMING UNIV OF SCI & TECH