Preparation method of metal filament with high porosity

A technology of metal filaments and high porosity, applied in metal material coating technology, manufacturing tools, heat treatment equipment, etc., can solve the problems of low tear strength of metal filaments, low porosity of porous materials, large pores, etc., to achieve High marketing value and economic benefits, improved porosity and through-porosity, good surface finish

Inactive Publication Date: 2017-01-25
桥运精密部件(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Metal microwires are made of stainless steel wires, which have good effects of electromagnetic isolation, radiation protection, corrosion resistance, and memory setting. They have been widely used to make clothing, gauze scarves, tablecloths, decorative cloths, etc., and are loved by people; however, Metal microwires are used in clothing fabrics, which have very strict requirements on the flexibility, elongation, and tear strength of metal microwires. The current production process of metal microwires is rough, and the produced metal microwires have the following deficiencies: Disadvantages: the wire diameter of the metal microwire is too thick, generally above 0.05mm, and the flexibility is poor; the el

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example one

[0032] A method for preparing high-porosity metal filaments, after three times of drawing and three times of annealing,

[0033] It includes the following steps:

[0034] The first step is to choose 3.5mm metal wire as raw material;

[0035] In the second step, the raw metal wire is fed into the coarse wire drawing machine to be drawn to a diameter of 2.0mm;

[0036] In the third step, the wire is soaked in a 3% sodium carbonate solution for 30 minutes and then drained;

[0037] In the fourth step, the drained metal wire is sent to the first annealing furnace for annealing; the furnace temperature of the first annealing furnace is 800°C, and the speed is 5 meters per second;

[0038] In the fifth step, the metal wire after the first annealing is sent to the wire drawing machine for drawing;

[0039] The sixth step is to soak the wire in a 10% sodium carbonate solution for 20 minutes and then drain it for the second time;

[0040] In the seventh step, the metal wire drai...

Example Embodiment

[0043] Example two

[0044] A method for preparing high-porosity metal filaments, after three times of drawing and three times of annealing,

[0045] It includes the following steps:

[0046] The first step is to choose 4.0mm metal wire as raw material;

[0047] In the second step, the raw metal wire is fed into the coarse wire drawing machine to be drawn to a diameter of 2.0mm;

[0048] In the third step, the wire is soaked in a 20% sodium carbonate solution for 30-60 minutes and then drained;

[0049] In the fourth step, the drained metal wire is sent to the first annealing furnace for annealing; the furnace temperature of the first annealing furnace is 950℃, and the speed is 5 meters per second;

[0050] In the fifth step, the metal wire after the first annealing is sent to the wire drawing machine for drawing;

[0051] The sixth step is to soak the wire in a sodium carbonate solution with a concentration of 20% for 30 minutes and then drain it for the second time;

[0052] In the sevent...

Example Embodiment

[0055] Example three

[0056] A method for preparing high-porosity metal filaments, after three times of drawing and three times of annealing,

[0057] It includes the following steps:

[0058] The first step is to choose 3.5mm metal wire as raw material;

[0059] In the second step, the raw metal wire is fed into the coarse wire drawing machine to be drawn to a diameter of 2.0mm;

[0060] In the third step, the wire is soaked in a 3% sodium carbonate solution for 60 minutes and then drained;

[0061] In the fourth step, the drained metal wire is sent to the first annealing furnace for annealing; the furnace temperature of the first annealing furnace is 950℃, and the speed is 5 meters per second;

[0062] In the fifth step, the metal wire after the first annealing is sent to the wire drawing machine for drawing;

[0063] In the sixth step, the metal wire is soaked in a 10% sodium carbonate solution for 30 minutes and then drained for the second time;

[0064] In the seventh step, the metal ...

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PUM

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Abstract

The invention discloses a preparation method of a metal filament with high porosity. The preparation method comprises a first step of selecting a raw metal wire as a raw material; a second step of delivering the raw metal wire to a rough wire drawing machine to draw; a third step of immersing the metal wire in the sodium carbonate solution and then draining off; a fourth step of delivering the dried metal filament to a first annealing furnace to anneal; a fifth step of delivering the metal wire after the first annealing to the wire drawing machine to draw; a sixth step of immersing the metal filament in the sodium carbonate solution and then draining off for the second time; a seventh step of delivering the dried metal wire to a second annealing furnace to anneal; an eighth step of delivering the metal wire after the second annealing to a tiny wire drawing machine to draw; a ninth step of delivering the metal wire after the tiny wire drawing to a third annealing furnace to anneal, and then obtaining the metal filament. Diameter of the metal filament can reach 0.025 mm, the surface smoothness is good, the tear strength is high, and flexibility is good; moreover, the percentage elongation can reach 30%-40%; meanwhile, the porosity is more than 50%, aperture is less than 50Mum, and open hole rate is 90% above.

Description

technical field [0001] The invention discloses a method for preparing high-porosity metal filaments, and belongs to the technical field of production, preparation and application of metal filaments. Background technique [0002] Metal microwires are made of stainless steel wires, which have good effects of electromagnetic isolation, radiation protection, corrosion resistance, and memory setting. They have been widely used to make clothing, gauze scarves, tablecloths, decorative cloths, etc., and are loved by people; however, Metal microwires are used in clothing fabrics, which have very strict requirements on the flexibility, elongation, and tear strength of metal microwires. The current production process of metal microwires is rough, and the produced metal microwires have the following deficiencies: Disadvantages: the wire diameter of the metal microwire is too thick, generally above 0.05mm, and the flexibility is poor; the elongation of the metal microwire is low, general...

Claims

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Application Information

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IPC IPC(8): B21C37/04C21D9/56C21D1/26C23C22/68
CPCB21C37/047C21D1/26C21D9/56C23C22/68
Inventor 俞雅勤
Owner 桥运精密部件(苏州)有限公司
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