High-efficiency high-throughput continuous casting and rolling system and process for titanium alloy bars

A continuous casting and rolling, titanium alloy technology, applied in the direction of metal rolling, can solve the problems of low efficiency, high cost, shortening process and cycle, etc., to achieve high efficiency, ensure uniformity, reduce unit cost and time Effect

Active Publication Date: 2020-09-15
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-efficiency and high-throughput continuous casting and rolling system and process for titanium alloy rods, which can solve the problems of low efficiency and high cost in the preparation and processing of titanium alloys, and shorten the process flow and cycle. Continuous casting and rolling equipment to achieve high efficiency, high uniformity and low cost of rod-shaped titanium alloy

Method used

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  • High-efficiency high-throughput continuous casting and rolling system and process for titanium alloy bars
  • High-efficiency high-throughput continuous casting and rolling system and process for titanium alloy bars
  • High-efficiency high-throughput continuous casting and rolling system and process for titanium alloy bars

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Embodiment 1

[0071] This embodiment provides a high-efficiency and high-throughput preparation method for titanium alloy (TF400) titanium rods, including the following steps:

[0072] Feeding: Pour 68.53kg of titanium sponge, 1.19kg of Fe particles, and 0.28kg of Fe-B intermediate alloy into the melting chamber along the feed pipe, close the vacuum valve, and fill with argon after rough and fine pumping to 0.5Pa Gas protection gas.

[0073] Alloy melting and splitting: Activate the plasma gun to melt the raw material to a liquid state.

[0074] Splitting and solidification: After the melt flows into the splitting chamber, turn on the heating device to ensure that the temperature of the melt is between 1200-1350°C to avoid cooling down of the melt. The high-temperature melt flows into the three crystallizers through the diversion gap, and each mold is wrapped with a 7YSZ thermal barrier coating to ensure that there is no heat conduction and heat influence between different molds, and the t...

Embodiment 2

[0080] This embodiment provides a high-efficiency and high-throughput preparation method for Ti-6Al-4V rods, including the following steps:

[0081] Feeding: Pour 63kg of sponge titanium and 7kg of Al-V intermediate alloy into the melting chamber along the feeding pipe, close the vacuum valve, and fill it with argon protective gas after rough and fine pumping to 0.5Pa.

[0082] Alloy melting and splitting: Activate the plasma gun to melt the raw material to a liquid state.

[0083] Splitting and solidification: After the melt flows into the splitting chamber, turn on the heating device to ensure that the temperature of the melt is between 1400-1500°C to avoid cooling down of the melt. The high-temperature melt flows into the three crystallizers through the diversion gap, and each mold is wrapped with a 7YSZ thermal barrier coating to ensure that there is no heat conduction and heat influence between different molds, and the thermal uniformity of a single mold is guaranteed. A...

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Abstract

The invention provides a high-efficiency high-throughput continuous casting and rolling system and process for titanium alloy bars. The system involves a feeding mechanism, a smelting chamber, a flowdividing chamber, a flow dividing mechanism, a multi-channel crystallization mechanism, pull-down mechanisms, material receiving mechanisms, conveying belts and a rolling mechanism; the smelting chamber is provided with a water-cooled copper furnace hearth, and a raw material is heated and smelted through plasma guns to form molten metal; the metal molten is guided into the flow dividing chamber and flows to the multi-channel crystallization mechanism in a divided mode, and the multi-channel crystallization mechanism is provided with a plurality of crystallizers in one-to-one correspondence with flow dividing openings; the material receiving mechanisms are arranged below the multi-channel crystallization mechanism and are provided with material receiving pipes in one-to-one correspondencewith the crystallizers, the material receiving pipes are opened after being turned over, titanium alloy billet bars slide onto the conveying belts, and the conveying belts convey the titanium alloy billet bars into the rolling mechanism for continuous rolling forming; and the crystallizers are water-cooled copper crystallizers, the crystallizers are vertically arranged at equal intervals, and thermal barrier material coatings are arranged on the outer surfaces of the crystallizers.

Description

technical field [0001] The invention relates to the technical field of titanium alloy preparation, in particular to a high-efficiency and high-throughput continuous casting and rolling system for titanium alloy rods. Background technique [0002] Titanium alloy has the advantages of high specific strength, good corrosion resistance and machinability, and is often used as a structural material in ships and marine engineering. The use of titanium alloys on ships can greatly improve the service life of ships and realize Reduce weight and increase load, reduce ship maintenance costs. In marine engineering, titanium alloy rods can be used as supports to improve corrosion resistance in marine environments, reduce corrosion of building components such as piers and slope protection in seawater environments, and increase service life. However, the current preparation of titanium alloy rods results in an unexpected cost of titanium raw materials, and the long processing cycle also li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/14B22D11/126B22D11/128B22D11/11B22D11/041C22C14/00C22C1/03B21B1/16B21B1/46
CPCB21B1/16B21B1/466B22D11/041B22D11/11B22D11/126B22D11/128B22D11/141C22C1/03C22C14/00
Inventor 常辉戴国庆郭艳华董月成淡振华李峰
Owner NANJING UNIV OF TECH
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