Method for producing metal hollow balls

A metal hollow sphere and computer-controlled technology, which is applied in the field of preparation of metal hollow spheres, can solve problems such as lack of patents, and achieve the effects of convenient realization, wide application range, and simple steps of the preparation method

Active Publication Date: 2012-06-13
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing research technology, there are many reports on the preparation of complex parts by electron beam cladding / sintering, but there are no reports at home and abroad on the process and theoretical research on the preparation of metal porous materials and hollow spherical structure materials by this method, and there is no relevant research. patent

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
  • Method for producing metal hollow balls
  • Method for producing metal hollow balls
  • Method for producing metal hollow balls

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] Such as figure 1 A method for preparing a hollow metal ball is shown. The equipment used in the method includes an electron beam rapid prototyping machine and a control computer connected to the electron beam rapid prototyping machine and used to control the working process of the electron beam rapid prototyping machine, so The control computer is equipped with drawing software and electron beam rapid prototyping software matched with the electron beam rapid prototyping machine; the method includes the following steps:

[0032] Step 1. Establish a three-dimensional solid model of the hollow metal ball 1: use the diameter and shell thickness of the hollow metal ball 1 to be prepared as a drawing software in the control computer to establish a three-dimensional solid model of the hollow metal ball 1. The model is composed of a plurality of metal hollow spheres 1 arranged in two layers. The top end of each metal hollow sphere 1 in the upper layer and the bottom end of each met...

Embodiment 1

[0040] In this embodiment, the metal hollow sphere to be prepared is a 316L stainless steel hollow sphere with a diameter of 5mm and a thickness of 0.1mm. The model of the electron beam rapid prototyping machine used is EBSM250; the preparation method is as follows:

[0041] Step 1. Establish a three-dimensional solid model of the 316L stainless steel hollow ball: use the control computer as a drawing software to establish a three-dimensional solid model of the 316L stainless steel hollow ball according to the diameter of 5mm and the thickness of the spherical shell of 0.1mm. The three-dimensional solid model consists of multiple arrangements. Two layers of 316L stainless steel hollow spheres are formed. The top end of each 316L stainless steel hollow sphere in the upper layer and the bottom end of each 316L stainless steel hollow sphere in the lower layer are provided with a powder outlet hole 2; wherein the powder outlet hole 2 is a circle Shaped hole and its diameter is 1mm; se...

Embodiment 2

[0048] In this embodiment, the metal hollow sphere to be prepared is a NiCrAlFe high-temperature alloy hollow sphere with a diameter of 6mm and a thickness of 0.2mm. The model of the electron beam rapid prototyping machine used is EBSM250; the preparation method is as follows:

[0049] Step 1. Establish a three-dimensional solid model of the hollow sphere of NiCrAlFe superalloy: According to the diameter of 6mm and the thickness of the spherical shell of 0.2mm, the three-dimensional solid model of the hollow sphere of NiCrAlFe superalloy is established as a drawing software in the control computer. Two layers of NiCrAlFe high-temperature alloy hollow spheres are arranged. The top end of each NiCrAlFe high-temperature alloy hollow sphere in the upper layer and the bottom end of each NiCrAlFe high-temperature alloy hollow sphere in the lower layer are provided with a powder outlet hole 2; Outlet hole 2 is a circular hole and its diameter is 1.5mm; see details figure 2 , image 3 wi...

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
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for producing metal hollow balls, which includes the following steps: 1 establishing a three-dimensional solid model of metal hollow balls, 2 leading the three-dimensional solid model to electron beam rapid prototyping software, and scanning parameters by controlling a computer to input an electron beam, 3 spreading metal powder on a powder spreading platform, controlling the computer to control an electron beam rapid prototyping machine to complete sintering of metal hollow balls, 4 pouring out surplus metal powder in each metal hollow ball from a powder outlet hole, and 5 sealing the powder outlet hole, and obtaining the metal hollow balls with the inside hollow and the surface compact. The method for producing metal hollow balls is reasonable in design, fast and convenient to operate, high in intelligent degree, high in production efficiency, high in forming precision, strong in universality and wide in application range. Ball sizes can be controlled easily, surface of balls is compact, wall thickness of a ball shell is uniform, the ball shell can not be broken easily, and a production process is free of pollution.

Description

Technical field [0001] The invention belongs to the technical field of preparation of hollow metal foams, and particularly relates to a method for preparing hollow metal balls. Background technique [0002] The thermal insulation material used in the middle part of the current thermal protection system is generally alumina ceramic fiber. Although it is lightweight, has good heat resistance and oxidation resistance, it has poor thermal shock resistance, and the thermal conductivity varies greatly with temperature. Due to the difference in thermal expansion coefficient between non-metal and metal cover plates, it is easy to cause structural instability during thermal cycling. The hollow spherical metal foam prepared by sintering or connecting hollow spherical particles has a hollow inside and a dense spherical shell. It is a new functional material with dual properties of function and structure, which can effectively inhibit convection and radiation heat transfer. It has potential...

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): B22F3/11
Inventor 陈金妹谈萍贾文鹏赵培
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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