Unlock instant, AI-driven research and patent intelligence for your innovation.

Chromium-silicon alloy powder and preparation method and application thereof

A technology of chromium-silicon alloy and silicon raw materials, which is applied in the field of chromium-silicon alloy powder and its preparation, can solve the problems of low oxygen content, high oxygen content, and low cost of metal powder, and achieve surface tension reduction, uniform phase composition, Ease of industrialization

Pending Publication Date: 2022-02-15
KONFOONG MATERIALS INTERNATIONAL CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, the preparation methods of alloy powder mainly include water atomization method, gas atomization method, plasma atomization method and ultrasonic atomization method. Metals with more active properties cannot be produced by atomization; the particle size of powder produced by gas atomization method is mainly in the range of 20-150 μm, the powder particle size distribution range is wide and the sphericity is poor, and the spherical metal with particle size distribution of 20-60 μm The production efficiency of the powder is low; the plasma rotary atomization method can produce low-oxygen, non-adhesive and high-sphericity powders of 70-130 μm, but due to the high requirements for the rotational speed of the electrode, it is impossible to produce a large number of powders with small particle sizes. High performance spherical powder

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
  • Chromium-silicon alloy powder and preparation method and application thereof
  • Chromium-silicon alloy powder and preparation method and application thereof
  • Chromium-silicon alloy powder and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] This embodiment provides a chromium-silicon alloy powder and a preparation method thereof, the preparation method comprising the following steps:

[0057] (1) Clean the chromium raw material with a purity of 4N and the silicon raw material with a purity of 3N in an organic solvent. -3 Vacuum drying under the condition of Pa for 30min; then, put the chromium raw material and the silicon raw material in a vacuum melting furnace according to the mass ratio of 1:2, and feed nitrogen, and then in an argon atmosphere, 1600°C, and a vacuum degree of 1×10 -3 Under the condition of Pa, vacuum smelting 5h obtains metal liquid;

[0058] (2) The metal liquid described in step (1) is ultrasonically atomized at a flow rate of 0.7m / s at an ultrasonic frequency of 45kHz, and heated at 100°C and a vacuum degree of 1×10 -3 Vacuum drying under the condition of Pa for 30 minutes to obtain chromium-silicon alloy powder.

[0059] The XRD spectrum of the chromium-silicon alloy powder obtain...

Embodiment 2

[0061] This embodiment provides a chromium-silicon alloy powder and a preparation method thereof, the preparation method comprising the following steps:

[0062] (1) Clean the chromium raw material with a purity of 4N and the silicon raw material with a purity of 3N in an organic solvent. -2 Vacuum drying under the condition of Pa for 60min; then, put the chromium raw material and the silicon raw material in a vacuum melting furnace according to the mass ratio of 1:4, feed nitrogen, and then in an argon atmosphere, 1500°C, vacuum degree 1×10 -2 Vacuum smelting under the condition of Pa for 6h to obtain metal liquid;

[0063] (2) The metal liquid described in step (1) is ultrasonically atomized at a flow rate of 1.5m / s at an ultrasonic frequency of 100kHz, and heated at 150°C and a vacuum of 1×10 -2 Vacuum drying under the condition of Pa for 60 minutes to obtain chromium-silicon alloy powder.

Embodiment 3

[0065] This embodiment provides a chromium-silicon alloy powder and a preparation method thereof, the preparation method comprising the following steps:

[0066] (1) After cleaning the chromium raw material with a purity of 4N and the silicon raw material with a purity of 3N in an organic solvent, after ultrasonic cleaning at 30°C for 10 minutes, the -3 Vacuum drying under the condition of Pa for 45min; then, put the chromium raw material and the silicon raw material in a vacuum melting furnace according to the mass ratio of 1:0.25, feed nitrogen, and then in an argon atmosphere, 1700°C, vacuum degree 5×10 -3 Under the condition of Pa, vacuum smelting 4h obtains metal liquid;

[0067] (2) The metal liquid described in step (1) is ultrasonically atomized at a flow rate of 0.5m / s at an ultrasonic frequency of 10kHz, and heated at 50°C and a vacuum degree of 5×10 -3 Vacuum drying under the condition of Pa for 45 minutes to obtain chromium-silicon alloy powder.

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
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides a chromium-silicon alloy powder and a preparation method and application thereof, vacuum melting and ultrasonic atomization are combined, the surface tension of metal liquid can be reduced, the metal liquid can be broken into small liquid drops more easily, and therefore the chromium-silicon alloy powder is smaller in particle size and higher in uniformity; according to the chromium-silicon alloy powder obtained through the preparation method, the oxygen content is smaller than or equal to 130 ppm, the average particle size ranges from 10 micrometers to 15 micrometers, the yield is larger than 90%, and phase composition is uniform; and the preparation method disclosed by the invention is simple to operate and easy to industrialize.

Description

technical field [0001] The invention belongs to the technical field of alloy powder preparation, and in particular relates to a chromium-silicon alloy powder and a preparation method and application thereof. Background technique [0002] Sputtering is one of the main technologies for preparing thin film materials. It uses ions generated by ion sources to accelerate and gather in a vacuum to form a high-speed energy ion beam, which bombards the solid surface, and the kinetic energy exchange occurs between the ions and the solid surface atoms. The atoms on the surface of the solid are separated from the solid and deposited on the surface of the substrate. The bombarded solid is the raw material for preparing the sputtering deposition film, which is generally called a sputtering target. [0003] Chromium silicon alloy sputtering target is a new type of sputtering target, as a good conductor for vacuum sputtering, it can be used in the field of electronic gate materials and elec...

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): B22F9/08B22F1/065C23C14/34
CPCB22F9/082C23C14/3414B22F2009/0848B22F2009/0844B22F2999/00B22F2202/01
Inventor 姚力军潘杰边逸军王学泽孙慧芳吴东青
Owner KONFOONG MATERIALS INTERNATIONAL CO LTD