Method for manufacturing ultrafine metal fibers

A metal fiber and manufacturing method technology, applied in the direction of manufacturing tools and other manufacturing equipment/tools, etc., can solve the problems of large changes in chemical elements of raw materials, many times of annealing, high porosity, etc., and achieve small variation coefficient, uniform fiber diameter, The effect of large extension performance

Active Publication Date: 2009-12-23
河北丝维特金属纤维有限公司
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Metal fiber sintered felt is a kind of porous deep filter material made of stainless steel fiber sintered at high temperature. The minimum can reach 6μm, and the basic material metal fiber for sintered felt with high filtration precision must have an ultra-fine wire diameter, so it is difficult to meet this high-precision requirement with only 6μm; the existing production process of metal fiber is generally as follows: Tube loading, electroplating, drawing, annealing, cleaning, etc., the metal fiber drawn by this process is easy to break, the processing rate of the pass is small, the number of annealing is large, and the chemical elements of the raw material change greatly, so its comprehensive performance is poor

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The manufacturing method of the ultrafine metal fiber of the present invention mainly comprises steps such as wire drawing, annealing treatment, extremely cold cooling:

[0008] (1) Copper-plate the metal microwires with the required thickness, then wind them into bundles according to the length and number of cores, and penetrate into the process tube for drawing and compaction. Pre-plating, passivation, etc., select the copper tube, and then use a round rod to enlarge the copper tube and insert it into the hanging steel wire, then tighten the steel wire with a tube clamp, and the installed wire head is inserted from the center with the steel wire After the steel pipe is tightly tied, the tail wire is tied tightly; the copper pipe that has been installed is shrunk and headed, and the headed copper pipe is passed through the specified mold and one end is clamped to start drawing and wire drawing;

[0009] (2) Anneal the compacted composite wire according to the temperatu...

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 relates to a method for manufacturing ultrafine metal fibers, which mainly comprises the steps of: carrying out drawing and compaction on metal micro-wires, then carrying out annealing treatment and adopting down quenching when composite wires exit a heating region; further carrying out the drawing and the annealing link on the composite wires, repeatedly carrying out the operation and carrying out finish drawing till achieving the size and the dimension required by the process; and carrying out electrolytic stripping, cleaning, drying, packaging and storage on the well drawn composite metal wires. The ultrafine metal fibers which adopt the micro-wire bundle cold reducing-diameter drawing technology can achieve 2 mu m and have the advantages of uniform wire diameter, continuous production, low cost, high efficiency and the like; the method utilizes the rapid rise method for avoiding a brittle zone and utilizes the sharp drop method for keeping the high-temperature single-phase tissues of the composite wires, thereby achieving the state of softest composite wires and greatest ductility; and the method solves the problem of matching compression ratio with drawing speed and realizes the purposes of uniform fiber diameter and small coefficient of variation.

Description

technical field [0001] The invention relates to the field of metal processing, in particular to a method for manufacturing ultrafine metal fibers. Background technique [0002] Metal fiber is a newly developed industry in recent years. With the development of society and the improvement of people's living standards, the requirements for environmental standards are getting higher and higher. Metal fiber sintered felt is a kind of porous deep filter material made of stainless steel fiber sintered at high temperature. The minimum can reach 6μm, and the basic material metal fiber for sintered felt with high filtration precision must have an ultra-fine wire diameter, so it is difficult to meet this high-precision requirement with only 6μm; the existing production process of metal fiber is generally as follows: Tube loading, electroplating, drawing, annealing, cleaning, etc., the metal fiber drawn by this process is easy to break, the processing rate of the pass is small, the num...

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): B23P23/04
Inventor 曹雄志梁海旺曹静会栗新艳魏娅婷刘瑞杰
Owner 河北丝维特金属纤维有限公司
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