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Sintering method for increasing strength and sound attenuation characteristics of metal fiber porous materials

A technology of porous materials and metal fibers, which is used in the field of sintering of sound-absorbing properties and enhancing the strength of metal fiber porous materials, can solve the problems that the material properties cannot meet the performance requirements, the process is cumbersome, and the heat energy is large, and it is extremely competitive in the market. The effect of production efficiency, simple process and strong silencing characteristics

Active Publication Date: 2018-11-30
蚌埠环宇流体科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process of this method is relatively cumbersome, and heating after vacuum fusing needs to consume more heat energy, the cost is high, and the final characteristics of the prepared material still cannot meet the increasing performance requirements of people.

Method used

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  • Sintering method for increasing strength and sound attenuation characteristics of metal fiber porous materials
  • Sintering method for increasing strength and sound attenuation characteristics of metal fiber porous materials
  • Sintering method for increasing strength and sound attenuation characteristics of metal fiber porous materials

Examples

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Effect test

Embodiment 1

[0027] A sintering method for enhancing the strength and sound-absorbing properties of metal fiber porous materials, comprising the following steps:

[0028] (1) Compression treatment:

[0029] Put the metal fiber porous material into the hydraulic press for pressing until the porosity of the metal fiber porous material meets the required requirements, and then take out the pressed metal fiber porous material for use;

[0030] (2) Preheating and insulation treatment:

[0031] Put the metal fiber porous material after the pressing treatment in step (1) into an incubator for preheating treatment, and perform ultrasonic treatment at the same time, and take it out after 20 minutes for use;

[0032] (3) High temperature sintering treatment:

[0033] Immediately put the metal fiber porous material treated in step (2) into a vacuum furnace for sintering treatment, first raise the temperature in the vacuum furnace to 1050 °C at a rate of 230 °C / min, and then keep it at this temperat...

Embodiment 2

[0042] A sintering method for enhancing the strength and sound-absorbing properties of metal fiber porous materials, comprising the following steps:

[0043] (1) Compression treatment:

[0044] Put the metal fiber porous material into the hydraulic press for pressing until the porosity of the metal fiber porous material meets the required requirements, and then take out the pressed metal fiber porous material for use;

[0045] (2) Preheating and insulation treatment:

[0046] Put the metal fiber porous material after the pressing treatment in step (1) into the incubator for preheating treatment, and perform ultrasonic treatment at the same time, and take it out after 23 minutes for use;

[0047] (3) High temperature sintering treatment:

[0048]Immediately put the metal fiber porous material treated in step (2) into a vacuum furnace for sintering treatment, first raise the temperature in the vacuum furnace to 1060°C at a rate of 235°C / min, and then heat-preserve at this temp...

Embodiment 3

[0057] A sintering method for enhancing the strength and sound-absorbing properties of metal fiber porous materials, comprising the following steps:

[0058] (1) Compression treatment:

[0059] Put the metal fiber porous material into the hydraulic press for pressing until the porosity of the metal fiber porous material meets the required requirements, and then take out the pressed metal fiber porous material for use;

[0060] (2) Preheating and insulation treatment:

[0061] Put the metal fiber porous material after the pressing treatment in step (1) into the incubator for preheating treatment, and perform ultrasonic treatment at the same time, and take it out after 25 minutes for standby;

[0062] (3) High temperature sintering treatment:

[0063] Put the metal fiber porous material treated in step (2) into a vacuum furnace for sintering immediately, first raise the temperature in the vacuum furnace to 1080°C at a rate of 240°C / min, and then heat-preserve at this temperatu...

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Abstract

The invention discloses a sintering method for increasing the strength and sound attenuation characteristics of metal fiber porous materials. The sintering method comprises the following steps of (1)performing suppressing treatment; (2) performing preheating and insulating treatment; and (3) performing high-temperature sintering treatment. According to the sintering method, the sintering method of the metal fiber porous materials is optimized and improved, the process is simple, the steps are reasonably matched, the processing cost is low, the finally sintered metal fiber porous materials have good mechanical properties and corrosion resistance, the sound attenuation characteristics are high, the use range is further enlarged, and great market competitiveness and production benefits are obtained.

Description

technical field [0001] The invention belongs to the technical field of metal fiber and product processing, and in particular relates to a sintering method for enhancing the strength and sound-absorbing properties of metal fiber porous materials. Background technique [0002] Metal fiber is an important branch in the field of metal materials, which is the result of the interdisciplinary development of material science and fiber science. The metal fiber porous material sintered by metal fiber is a new type of engineering material with excellent performance that is rapidly developing in current material science and has dual properties of function and structure. Its light weight and high strength make it have a good application prospect. At present It has been widely used in many fields such as aerospace, metallurgical machinery, petrochemical industry, electronic communication, chemical engineering, construction transportation, energy and environmental protection, national defe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/04B22F3/11
CPCB22F3/002B22F3/04B22F3/11B22F2998/10B22F2999/00B22F2201/20B22F2202/11
Inventor 郭平
Owner 蚌埠环宇流体科技有限公司
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