Superfine titanium alloy powder, preparation method thereof and vertical hydrogenation and dehydrogenation furnace

A technology for hydrogenation and dehydrogenation and titanium alloys, which is used in metal processing equipment, transportation and packaging, etc., can solve the problems of incomplete dehydrogenation and deoxidation, high impurity content, and complicated operation, so as to shorten production time, reduce impurity content, and speed up production. The effect of the reaction process

Pending Publication Date: 2022-04-12
盘星新型合金材料(常州)有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the hydrodehydrogenation process entered industrial production from the laboratory in 1970, the design of the main furnace type, mainly the horizontal hydrodehydrogenation furnace, has hardly changed. Unloading has high requirements on layer thickness, and the operation is cumbersome
The equipment pursues output and low cost. Generally, two-stage pumps are used. The ultimate vacuum is about 1-10Pa. The dehydrogenation and deoxygenation are not complete, and the impurity content is high.
Northwest Institute of Nonferrous Metals proposed a new dynamic hydrogenation dehydrogenation method. The raw materials are continuously completed in a special equipment that can rotate, such as hydrogenation, crushing, dehydrogenation, and re-crushing, so as to directly obtain less impurities and low oxygen content (0.15wt). .%) titanium and titanium alloy powders, but this method is currently in the laboratory stage, and the problems of high-temperature rotating dynamic seals and vacuum filtration of ultra-fine powders have not yet been resolved.

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
  • Superfine titanium alloy powder, preparation method thereof and vertical hydrogenation and dehydrogenation furnace
  • Superfine titanium alloy powder, preparation method thereof and vertical hydrogenation and dehydrogenation furnace
  • Superfine titanium alloy powder, preparation method thereof and vertical hydrogenation and dehydrogenation furnace

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] In yet another aspect, the present invention also provides a method for preparing ultrafine titanium alloy powder, which includes: cleaning, drying, and deoxidizing the raw materials, adding them to a hydrodehydrogenation furnace; Filling with hydrogen gas, after hydrogenation reaction occurs, the hydrogenated material is obtained; the hydrogenated material is ball milled to obtain the ball milled material; the ball milled material is put into the hydrogenation dehydrogenation furnace, after the dehydrogenation reaction occurs, the dehydrogenated material is obtained , which is ultrafine titanium alloy powder.

[0031] Specifically, the ultra-fine titanium alloy powder in the present invention is mainly TC4 titanium alloy, which can be TC4 turning chips, turning scraps, coarse powder (150-250 μm), etc., and the element composition meets the GB / T 4698 national standard It is required that the prepared ultrafine titanium powder has an oxygen content of no more than 0.15wt...

Embodiment 1

[0051] Cleaning of raw materials: put TC4 turning chips, turning materials, etc. into an ultrasonic cleaning machine with a certain amount of alcohol for cleaning, to remove impurities and oil on the surface of raw materials, and clean 50Kg of raw materials each time.

[0052] Drying: Put the cleaned raw materials into an oven for drying for 2 hours; the drying temperature is 130°C to prevent the raw materials from being oxidized and oxygenated.

[0053] Preparation before hydrogenation: Check whether the water, electricity and gas of the vertical hydrogenation dehydrogenation furnace are operating normally, install the receiving tank, tighten the vacuum caliper, close the high temperature valve, add the dried raw materials into the furnace through the feeding bin, and close the furnace cover.

[0054] Vacuuming: Turn on the low-vacuum pump group, open the low-vacuum valve, evacuate to below 10Pa, then fill in high-purity argon (5N) until the vacuum gauge is -0.05MPa, repeat t...

Embodiment 2

[0064] Cleaning of raw materials: put TC4 turning chips, turning materials, etc. into an ultrasonic cleaning machine with a certain amount of alcohol for cleaning, to remove impurities and oil on the surface of raw materials, and clean 50Kg of raw materials each time.

[0065] Drying: Put the cleaned raw materials into an oven for drying for 2 hours; the drying temperature is 110°C to prevent the raw materials from being oxidized and oxygenated.

[0066] Preparation before hydrogenation: Check whether the water, electricity and gas of the vertical hydrogenation dehydrogenation furnace are operating normally, install the receiving tank, tighten the vacuum caliper, close the high temperature valve, add the dried raw materials into the furnace through the feeding bin, and close the furnace cover.

[0067] Vacuuming: Turn on the low-vacuum pump group, open the low-vacuum valve, evacuate to below 10Pa, then fill in high-purity argon (5N) until the vacuum gauge is -0.05MPa, repeat t...

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
particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of superfine titanium alloy powder, and particularly relates to superfine titanium alloy powder, a preparation method thereof and a vertical hydrogenation dehydrogenation furnace. The preparation method of the superfine titanium alloy powder comprises the following steps: cleaning, drying and deoxidizing raw materials, and adding the raw materials into a hydrogenation and dehydrogenation furnace; filling hydrogen into the hydrogenation dehydrogenation furnace, and carrying out hydrogenation reaction to obtain a hydride material; the hydride material is subjected to ball milling, and a ball-milled material is prepared; and adding the ball-milled material into a hydrogenation dehydrogenation furnace, and carrying out dehydrogenation reaction to obtain a dehydrogenated material, namely the superfine titanium alloy powder. The titanium alloy powder prepared through the preparation method is lower in impurity content and higher in fine powder yield.

Description

technical field [0001] The invention belongs to the technical field of ultrafine titanium alloy powder, and in particular relates to an ultrafine titanium alloy powder, a preparation method thereof, and a vertical hydrogenation dehydrogenation furnace. Background technique [0002] The hydrogenation dehydrogenation method is a classic method for producing titanium powder invented in the United States in 1955. It uses the reversible absorption characteristics of titanium to hydrogen to prepare titanium powder. According to the physical and chemical properties of the titanium-hydrogen system, it can be known that titanium absorbs hydrogen at a certain temperature and hydrogen pressure. The powder of hydrogen gas is called titanium hydride powder; dehydrogenation of titanium hydride powder under high temperature and vacuum conditions can obtain pure titanium powder without hydrogen. The reversible reaction formula is as follows: [0003] In recent years, with the maturity of...

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): B22F1/05B22F1/142B22F1/145B22F9/04
Inventor 张雪宁肖海波彭炜张晓平
Owner 盘星新型合金材料(常州)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap