Nonferrous metal powder

A high-speed centrifugal and atomization device technology, which is applied in the field of non-ferrous metal powder preparation technology and devices, can solve the problems of irregular product shape, wide particle size distribution range, high oxygen content, etc., and achieve narrow particle size distribution and high oxygen content. The effect of low cost, high production efficiency and high output

Inactive Publication Date: 2005-08-24
云南锡业集团有限责任公司
View PDF0 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the output of non-ferrous metal powder prepared by gas atomization method is large, the particle size distribution range is wide, the product shape is irregular, and t

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
  • Nonferrous metal powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Using the above-mentioned powder making device, the spherical solder with the composition of 63% Sn and 37% Pb is prepared. The main process parameters to be controlled and adjusted are: melting temperature 230-250°C, atomization temperature 210-230°C, melting during atomization Liquid flow rate: 150kg / h, atomization disc diameter 50mm, atomization speed 20000~40000r / min, oxygen atmosphere: 20~60ppm.

[0027] The products prepared according to the above parameters are tested to have high roundness, bright surface without defects, oxygen content: <50ppm, and the particle size distribution is as follows:

[0028] %<10 25 50 75 90

[0029] um 12.96 25.06 37.39 50.78 66.86

Embodiment 2

[0031] The composition is 97%Bi3%Sb, 58%Bi42%Sn and other metals and alloy powders prepared according to the method and steps of Example 1. Only the melting temperature of the alloy is superheated by 30-70°C according to the requirements, and the other parameters remain unchanged. The obtained product particle size and distribution, morphology, oxygen content, etc. are the same as in Example 1.

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
Diameteraaaaaaaaaa
Oxygen contentaaaaaaaaaa
Login to view more

Abstract

A process for preparing the low-smelting-point (lower than 500 deg.C) non-ferrous metal and alloy powder (3-100 mm spherical particles) includes such steps as smelting, delivering the molten liquid to an atomizer via a sealed heated pipe, high-speed centrifugal atomizing, fast cooling, rounding and solidifying. Its apparatus is composed of smelting furnace, high-speed centrifugal atmozer and powder collector.

Description

technical field [0001] The invention relates to a non-ferrous metal powder preparation process and device, in particular to a "high-speed centrifugal atomization method" preparation process and device for non-ferrous metal and alloy powder with a low melting point below 500°C. Background technique [0002] Non-ferrous metals and alloy powders are widely used and are important basic raw materials in chemical industry, metallurgy, machinery manufacturing, electronics industry and other industries. Its preparation methods are mostly "gas atomization method" and "ultrasonic atomization method". Although the output of non-ferrous metal powder prepared by gas atomization method is large, the particle size distribution range is wide, the product shape is irregular, and the oxygen content is high; although the ultrasonic atomization method can prepare products with a narrow particle size distribution range and low oxygen content, but Low Yield. Contents of the invention [0003]...

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
IPC IPC(8): B22F9/10
Inventor 朱华明黄迎红刘宝权王炜刘国宇
Owner 云南锡业集团有限责任公司
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