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A kind of ingot pulling method for smelting ta10 titanium alloy flat ingot in eb furnace

A titanium alloy and flat ingot technology, applied in the field of titanium alloy smelting, can solve the problems of uneven surface of flat ingot, uneven mechanical properties, low material utilization rate, etc. The effect of slow and reduced manufacturing costs

Active Publication Date: 2021-06-08
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When smelting TA10 titanium alloy slab ingot in EB furnace, if the speed of ingot drawing is too fast, the surface of slab ingot will be uneven and corrugated, the surface quality will be poor, and the mechanical properties will be uneven. A large amount of mechanical processing on the surface leads to problems such as low material utilization, long production cycle, and high product cost. If the ingot drawing speed is too slow, the production cycle will be increased and the output will be reduced.

Method used

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  • A kind of ingot pulling method for smelting ta10 titanium alloy flat ingot in eb furnace
  • A kind of ingot pulling method for smelting ta10 titanium alloy flat ingot in eb furnace
  • A kind of ingot pulling method for smelting ta10 titanium alloy flat ingot in eb furnace

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Effect test

Embodiment 1

[0021] A kind of ingot pulling method of smelting TA10 titanium alloy flat ingot in EB furnace, concrete steps are as follows:

[0022] (1) The material of this embodiment is TA10 titanium alloy, the length of the ingot is 7525mm, and the ingot pulling time is 860min.

[0023] (2) Turn on the 4# gun when the titanium liquid flows into the crystallizer, and the power is 50kW.

[0024] (3) Irradiate the 4# gun on the position covered by the titanium liquid in the crystallizer, and start pulling the ingot when the titanium liquid completely covers the crystallizer.

[0025] (4) Increase the power of the 4# gun at the beginning of ingot pulling.

[0026] (5) During the ingot pulling process, the crystallizer water flow rate is 2000L / min, the inlet water temperature is 24-25°C, the outlet water temperature is 25-28°C, and the temperature difference is 0.5-4°C.

[0027] In this embodiment, when the ingot pulling time t is between 0-8h and the ingot pulling speed v satisfies the fo...

Embodiment 2

[0032] A kind of ingot pulling method of smelting TA10 titanium alloy flat ingot in EB furnace, concrete steps are as follows:

[0033] (1) The material of this embodiment is TA10 titanium alloy, the length of the ingot is 7876mm, and the ingot pulling time is 830min.

[0034] (2) Turn on the 4# gun when the titanium liquid flows into the crystallizer, and the power is 50kW.

[0035] (3) Irradiate the 4# gun on the position covered by the titanium liquid in the crystallizer, and start pulling the ingot when the titanium liquid completely covers the crystallizer.

[0036] (4) Increase the power of the 4# gun at the beginning of ingot pulling.

[0037] (5) During the ingot pulling process, the crystallizer water flow rate is 1800L / min, the inlet water temperature is 21-25°C, the outlet water temperature is 22-28°C, and the temperature difference is 1-4°C.

[0038] In the present embodiment, when the ingot pulling time t is between 0-8h and the ingot pulling speed v satisfies t...

Embodiment 3

[0044] A kind of ingot pulling method of smelting TA10 titanium alloy flat ingot in EB furnace, concrete steps are as follows:

[0045] (1) The material of this embodiment is TA10 titanium alloy, the length of the ingot is 7836mm, and the ingot pulling time is 780min.

[0046] (2) Turn on the 4# gun when the titanium liquid flows into the crystallizer, and the power is 50kW.

[0047] (3) Irradiate the 4# gun on the position covered by the titanium liquid in the crystallizer, and start pulling the ingot when the titanium liquid completely covers the crystallizer.

[0048] (4) Increase the power of the 4# gun at the beginning of ingot pulling.

[0049] (5) During the ingot pulling process, the crystallizer water flow rate is 2000L / min, the inlet water temperature is 21-25°C, the outlet water temperature is 23-28°C, and the temperature difference is 1.5-4°C.

[0050] In this embodiment, the ingot pulling time t is between 0-8h and the ingot pulling speed v satisfies the formula...

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Abstract

The invention discloses an ingot pulling method for smelting TA10 titanium alloy flat ingots in an EB furnace, and belongs to the technical field of titanium alloy smelting. The present invention obtains the change law of the ingot drawing rate and the melting rate through linear fitting, first gradually increases the ingot drawing rate and then decreases the ingot drawing rate, and the melting rate gradually decreases to effectively control the defects in the ingot drawing process. On the one hand, the process can be adjusted Parameters effectively reduce impurities to obtain TA10 titanium alloy slabs with good product quality and excellent performance; on the other hand, without adding new equipment, reducing energy consumption and not increasing manufacturing costs, finally obtain high-quality, low-cost TA10 titanium Alloy slabs to expand the subsequent research and development and application of TA10 titanium alloy slabs.

Description

technical field [0001] The invention relates to an ingot pulling method for smelting TA10 titanium alloy flat ingots in an EB furnace, and belongs to the technical field of titanium alloy smelting. Background technique [0002] At present, the vacuum consumable electric arc furnace (VAR furnace) is most commonly used in domestic titanium industry smelting, but the VAR furnace needs to be smelted three times, and generally produces high and low density inclusions. The electron beam cold hearth furnace (EB furnace) can solve this problem very well. It only needs to be smelted once. The process is simple and the raw materials can be bulk materials such as sponge titanium, which greatly reduces the production cost. [0003] The composition of TA10 titanium alloy is Ti-0.8Ni-0.3Mo, which belongs to near α-type titanium alloy. Because of its good corrosion resistance, it is widely used in metallurgy, shipbuilding, marine engineering and other fields. Due to the large demand and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B9/22C22C1/02C22C14/00B22D11/20
CPCB22D11/001B22D11/20C22B9/228C22C1/02C22C14/00
Inventor 肖寒张宏宇丁平黄海广杨超周荣锋
Owner KUNMING UNIV OF SCI & TECH
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