Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Explosion-proof method and device for producing kilogram-level gamma-TiAlNb alloy in one-step furnace in self-propagating manner

An explosion-proof device and self-propagating technology, which is applied in the field of titanium-aluminum-niobium ternary alloy materials, can solve problems such as the difficulty in realizing kilogram-level production and the inability to realize continuous automatic production, so as to avoid uncontrollable self-propagating reactions induced by reaction heat , Improve safety, reduce the effect of reaction heat production

Active Publication Date: 2022-01-21
NORTHEASTERN UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This ratio of raw materials will generate excessive heat of reaction and lead to an inevitable explosive reaction. Therefore, it is limited to the laboratory preparation of gram-level TiAl alloys, and it is difficult to achieve kilogram-level production, let alone continuous automatic production.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Explosion-proof method and device for producing kilogram-level gamma-TiAlNb alloy in one-step furnace in self-propagating manner
  • Explosion-proof method and device for producing kilogram-level gamma-TiAlNb alloy in one-step furnace in self-propagating manner
  • Explosion-proof method and device for producing kilogram-level gamma-TiAlNb alloy in one-step furnace in self-propagating manner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] An explosion-proof device for self-propagating production of kilogram-level γ-TiAlNb alloy in a one-step furnace, the schematic diagram of which is shown in figure 1 ; It is a non-ignition reaction furnace, including a heating zone furnace body 1, a slow cooling zone furnace body 2 and a deep cooling zone furnace body 3; wherein, a heating zone furnace body 1, a slow cooling zone furnace body 2 and a deep cooling zone furnace body 3 Connected sequentially, the furnace body 1 in the heating zone is an induction heating furnace body, which forms a heating zone, the furnace body 2 in the slow cooling zone forms a slow cooling zone, and the furnace body 3 in the deep cooling zone forms a deep cooling zone, the heating zone, the slow cooling zone and the deep cooling zone The areas are sequentially connected;

[0047] The inner ring of the furnace body 1 in the heating zone is provided with a graphite heating element 5, and the outer circumference of the graphite heating ele...

Embodiment 2

[0063] In this embodiment, an explosion-proof method for producing kilogram-level γ-TiAlNb alloy by self-propagation in a one-step furnace, the device used is the same as that in Embodiment 1, and the specific steps in the implementation process of this embodiment are:

[0064] Step 1, according to the preparation level of the γ-TiAlNb ternary alloy above the kilogram level, prepare the raw materials, in the raw materials according to the mass ratio Ti:Al:CaO:NaClO 4 :ZrO 2 :Nb=48:65:13:35:19:2 Mixed, the total mass is 10kg, after uniform mixing, sent to a drying box for drying treatment, to obtain a raw material mixture.

[0065] Step 2, place the pretreated raw material mixture in a ceramic crucible, and place the crucible in a reaction kettle, start vacuuming, and when the vacuum degree reaches 10 -3 Heating starts at Pa.

[0066] Among them, the three thermocouples distributed in the heating area can be used to detect the actual temperature t1 on the upper surface of the...

Embodiment 3

[0070] This embodiment is an explosion-proof method for self-propagating production of kilogram-level γ-TiAlNb alloy in a one-step furnace. The device used is the same as that of Embodiment 1. The specific steps in the implementation process of this embodiment are:

[0071] Step 1, according to the preparation level of the γ-TiAlNb alloy above the kilogram level, prepare the raw materials, in the raw materials according to the mass ratio Ti:Al:CaO:NaClO 4 :ZrO 2 :Nb=47:64:14:37:22:2 Mixed, the total mass is 10kg, after uniform mixing, sent to the drying box for drying treatment, to obtain the raw material mixture.

[0072] Step 2, the pretreated raw material mixture is placed in a ceramic crucible, and the crucible is placed in a reaction kettle, and a vacuum is started, and when the vacuum degree reaches 10 -3 Heating starts at Pa.

[0073] Among them, the three thermocouples distributed in the heating area can be used to detect the actual temperature t1 on the upper surfac...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
microhardnessaaaaaaaaaa
Login to View More

Abstract

The invention relates to an explosion-proof method and device for producing a kilogram-level gamma-TiAlNb alloy in a one-step furnace in a self-propagating manner. The explosion-proof method comprises the following steps that when raw materials are heated in a heating area until a self-propagating critical reaction occurs, judging is performed according to the actually-measured temperature of the upper surface of a reaction kettle, the environment temperature in the heating area, the temperature of the bottom of the reaction kettle, the mutual temperature difference and the temperature rise rate, the alloy sequentially enters a slow cooling area for self-propagating, a deep cooling area for complete reaction, the heating area for heat compensation and a slow cooling area for final cooling, and the gamma-TiAlNb alloy coated with kilogram-level slag is obtained. According to the adopted explosion-proof device, the heating area is used for providing heat for triggering the self-propagating reaction of the gamma-TiAlNb alloy and heat compensation for a slag-metal separation process; the slow cooling area is located below the heating area and used for a maintaining stage after the self-propagating reaction occurs and a stage of final cooling to obtain the alloy, and the deep cooling area is located below the slow cooling area, is a main self-propagating reaction area and is used for taking away the reaction heat, limiting violent self-propagating, playing an anti-explosion role and guaranteeing the safety of alloy preparation and production devices.

Description

technical field [0001] The invention belongs to the technical field of titanium-aluminum-niobium ternary alloy materials, and in particular relates to an explosion-proof method and device for producing kilogram-level gamma-TiAlNb alloys by self-propagation in a one-step furnace. Background technique [0002] As the "heart" of an aircraft, the engine's reliability and safety are very important, and it can represent an international technological level and comprehensive national strength. However, after the performance of aero-engines improves, the internal ambient temperature gradually increases, and the aircraft's thrust-to-weight ratio increases. , the nickel-based alloys usually used on aeroengine blades can no longer meet the actual needs. At present, the research frontier in the world is the γ-TiAl alloy material with low density, high specific strength, strong oxidation resistance and good creep performance at high temperature. However, due to its poor thermal processin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/04C22C14/00C22C21/00B22F3/23
CPCC22C1/0458C22C1/0416B22F3/23C22C14/00C22C21/003C22C1/047Y02P10/25
Inventor 李东刚赵灿崔安峰王强
Owner NORTHEASTERN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com