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

A method and device for realizing non-uniform heat flux density distribution by electron beam scanning

A technology of electron beam scanning and heat flux density, applied in the field of electron beam scanning, can solve the problems of difficulty in guaranteeing, the electron beam scanning method cannot achieve non-uniform heat flux density distribution, etc., and achieve high-precision effects

Active Publication Date: 2022-07-19
合肥低碳研究院
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the electron beam scanning method in the prior art cannot realize non-uniform heat flux distribution and the accuracy of scanning heat flux is difficult to guarantee

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
  • A method and device for realizing non-uniform heat flux density distribution by electron beam scanning
  • A method and device for realizing non-uniform heat flux density distribution by electron beam scanning
  • A method and device for realizing non-uniform heat flux density distribution by electron beam scanning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like figure 1 The schematic diagram of electron beam scanning heating is shown in the figure. After the action of the magnetic field 6, the electron beam 4 is focused to the specified beam spot size and targeted to the corresponding position, and the deflection magnetic field 6 is adjusted to make the beam spot scan quickly on the target material 7 to achieve heating, and the target material 7 is fixed on the cooling facility 8, The entire vacuum chamber 1 and the cooling facility 8 are mounted on a support frame 9 . The present invention provides a method for realizing non-uniform heat flux density distribution by electron beam scanning, the method comprising:

[0036] Step 1: The original target heat flux density is subjected to discrete processing of scanning point regularization to obtain the target heat flux density in discrete form; specifically, linear interpolation or quadratic interpolation or higher order interpolation methods are used to scan point regularit...

Embodiment 2

[0047] Corresponding to Embodiment 1 of the present invention, Embodiment 2 of the present invention further provides a device for realizing non-uniform heat flow by electron beam scanning, and the device includes:

[0048] The data processing module is used for the discrete processing of scanning point regularization on the original target heat flux density to obtain the target heat flux density in discrete form;

[0049] The path planning module is used to plan the scanning path according to the heat flux density characteristics and the geometric characteristics of the scanning area;

[0050] The scanning residence time acquisition module is used to establish the energy balance equation system of the scanning heat flux density and the target heat flux density in one scan cycle, and solve the energy balance equation system to obtain the scanning residence time of different scanning points;

[0051] The scanning heat flux density acquisition module is used to calculate the sca...

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

No PUM Login to View More

Abstract

The invention discloses a method and a device for realizing non-uniform heat flux density distribution by electron beam scanning. The method comprises: performing discrete processing of scanning point regularization on the original target heat flux density to obtain the target heat flux density in discrete form; The heat flux density characteristics and the geometric characteristics of the scanning area are used to plan the scan path; the energy balance equations of the scan heat flux and the target heat flux are established in one scan cycle, and the energy balance equations are solved to obtain the scan residence time of different scan points; according to the scan path and The scanning residence time is calculated to obtain the scanning heat flux; the present invention has the advantages that the non-uniform heat flux distribution is realized and the obtained scanning heat flux has high precision.

Description

technical field [0001] The invention relates to the technical field of electron beam scanning, and more particularly to a method and device for realizing non-uniform heat flux density distribution by electron beam scanning. Background technique [0002] When the aircraft moves at hypersonic speed, it produces severe friction with the atmosphere, and the wall surface is in an environment of high temperature and high heat flux density. In order to ensure the heat resistance of the material and the reliability of the thermal protection measures, it is necessary to develop the ground high heat flow and high temperature test technology. The current common technical means include quartz lamp arrays and hypersonic wind tunnels. The heat source in the hypersonic wind tunnel cannot directly heat the material, the energy utilization efficiency is low, and a large amount of gas source is required; while the quartz lamp has a temperature limit and heats the material by radiation. , whi...

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 Patents(China)
IPC IPC(8): B23K15/00
CPCB23K15/00
Inventor 叶宏姚鸿鑫郑传懋
Owner 合肥低碳研究院