Unlock instant, AI-driven research and patent intelligence for your innovation.
Method for preparing porous metal by using mixed gas
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of mixed gas and porous metal, which is applied in the field of porous metal preparation, can solve the problems of relying on templates, complex methods, and high requirements for production equipment, and achieve the effects of uniform distribution, simple process, and low equipment requirements
Active Publication Date: 2017-11-03
HARBIN INST OF TECH
View PDF1 Cites 2 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0004] The purpose of the present invention is to solve the problem that the existing process of preparing micro-nano porous metal mainly focuses on the initial formation process of metal materials, the method is complicated, relies heavily on templates, and has high requirements for production equipment, and provides a method of using mixed gas directly in the Prepared metal material surface, method for preparing porous structure in situ
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
specific Embodiment approach 1
[0023] Specific Embodiment 1: In this embodiment, the method for preparing a porous metal material using a mixed gas is implemented according to the following steps:
[0024] 1. Ultrasonic cleaning the metal material or foam metal material with acetone, then using absolute ethanol and deionized water to clean it in turn, and drying to obtain the cleaned metal;
[0025] 2. Place the cleaned metal obtained in step 1 in a high-temperature-resistant carrier, raise the temperature to 550-850°C under the protection of an inert gas, and then pass the mixed gas composed of fuel gas and oxidizing gas into the carrier where the metal is placed In the body, the metal is exposed to the mixed gas for porous treatment to complete the preparation of porous metal materials;
[0026] Wherein the fuel gas described in step 2 is hydrogen, carbon monoxide, C 1 ~C 4 One or more mixed gases of hydrocarbons, biogas, natural gas, liquefied petroleum gas, coke oven gas, water gas, and petroleum gas....
specific Embodiment approach 2
[0029] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the metal materials are aluminum, gallium, indium, thallium, germanium, tin, lead, antimony, bismuth, polonium, manganese, iron, cobalt, nickel, Copper, gold, silver, ruthenium, rhodium, palladium, osmium, iridium, platinum, iron, copper or titanium alloys. Other steps and parameters are the same as those in Embodiment 1.
specific Embodiment approach 3
[0030] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the oxidizing gas in step 2 is air or oxygen. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.
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
Property
Measurement
Unit
diameter
aaaaa
aaaaa
Login to View More
Abstract
The method of preparing porous metal by using mixed gas solves the problem that the existing micro-nano porous metal preparation process mainly focuses on the initial formation process of metal materials, the method is complicated, heavily relies on templates, and has high requirements for production equipment. The method for preparing the porous metal material: 1. The metal material is first cleaned with acetone, and then cleaned with absolute ethanol and deionized water in sequence; 2. The cleaned metal is heated to 550-850 ° C under the protection of an inert gas, and then The mixed gas composed of fuel gas and oxidizing gas is passed into the carrier body for porous treatment. The invention directly utilizes fuel gas and oxidizing gas to form the expansion and overflow of H2O and CO2 gas inside the metal, and forms a porous structure on the surface and inside of the metal, which has the advantages of simple process, convenient preparation and no pollution, and can be prepared in the Secondary processing can be realized on complex metal material devices, and the requirements for equipment are low.
Description
technical field [0001] The invention relates to a method for preparing porous metal, in particular to a simple method for obtaining porous metal by using mixed gas under high temperature conditions. Background technique [0002] Porous metal is composed of a metal skeleton and internal pores, and has basic metal properties such as weldability of metal materials. Compared with dense metal materials, the remarkable feature of porous metals is that they have a large number of pores inside. And a large number of internal pores make porous metal materials have many excellent characteristics, such as small specific gravity, large specific surface, good energy absorption, low thermal conductivity (closed-pore body), high heat exchange and heat dissipation capacity (through-hole body), absorption Good acoustic performance (through-hole body), excellent permeability (through-hole body), good electromagnetic wave absorption (through-hole body), flame resistance, heat and fire resista...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
