CN108941565B - Method for forming molecular sieve base frame - Google Patents
Method for forming molecular sieve base frame Download PDFInfo
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- CN108941565B CN108941565B CN201810989877.6A CN201810989877A CN108941565B CN 108941565 B CN108941565 B CN 108941565B CN 201810989877 A CN201810989877 A CN 201810989877A CN 108941565 B CN108941565 B CN 108941565B
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- base frame
- molecular sieve
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- forming
- mixed substance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/241—Chemical after-treatment on the surface
- B22F2003/242—Coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a method for forming a molecular sieve base frame, which comprises the steps of mixing a plurality of aluminum powder, plasticizer, carbon powder, alloy reinforcing elements, nickel powder, iron powder, paraffin powder and the balance copper powder by a mixer to form a mixed substance, then carrying out forming operation on the mixed substance, finally forming the base frame by a sintering mode, and covering the surface and the inner wall of the base frame with a molecular sieve to form the molecular sieve base frame. The invention uses powder metallurgy to form the base frame, and then combines the base frame with the molecular sieve to form the molecular sieve base frame, which is used for carrying out adsorption operation on gas or liquid, and has simple structure and good adsorption effect.
Description
Technical Field
The invention belongs to the technical field of molecular sieves, and particularly relates to a forming method of a molecular sieve base frame.
Background
Molecular sieves are materials containing precise and single microscopic pores that can be used to adsorb gases or liquids. Molecules small enough can be adsorbed through the pores while larger molecules cannot, unlike a conventional sieve, operate at the molecular level.
Powder metallurgy is a process technology for manufacturing metal or metal powder as a raw material, and manufacturing metal materials, composite materials and various types of products through forming and sintering operations, and at present, the powder metallurgy technology is widely applied to the fields of traffic, machinery, electronics, aerospace, weaponry, biology, new energy, information, nuclear industry and the like, and becomes one of the most active branches in new material science.
At present, molecular sieves are generally used in two ways, wherein the first way is to directly put the molecular sieves into liquid or gas; the second is to use a screen as a carrier for the molecular sieve to perform the adsorption operation. The first mode cannot adsorb volatilized gas, so that the adsorption effect is reduced; secondly, because the existing screen is of a compact structure, although the particle size of the molecular sieve is extremely small, the molecular sieve cannot enter pores of the screen, and the adsorption effect is reduced.
Disclosure of Invention
The invention overcomes the defects of the prior art, and provides a method for forming a molecular sieve base frame, which can form the base frame by using a powder metallurgy mode, and then combine with a molecular sieve to form the molecular sieve base frame, is used for carrying out adsorption operation on gas or liquid, and has simple structure and good adsorption effect.
In order to achieve the purpose, the invention adopts the technical scheme that: a method for forming a molecular sieve base frame comprises the following steps:
(1) adopting a mixer to carry out mixing operation, and uniformly mixing the following substances: 5-10% of aluminum powder, 0.5% of plasticizer, 0.5-0.8% of carbon powder, 2-4% of alloy reinforcing element, 1-5% of nickel powder, 4-8% of iron powder, 2% of paraffin powder and the balance of copper powder to form a mixed substance;
(2) carrying out forming operation on the mixed substance to form a base frame;
(3) placing the base frame into a rotary furnace for sintering operation, and cooling the base frame to room temperature after sintering is completed;
(4) the molecular sieve is uniformly covered on the surface of the base frame, and after the covering, drying treatment is carried out to finally form the molecular sieve base frame.
In a preferred embodiment of the present invention, in the step (2), the fiber tube may be used to perform a forming operation in cooperation with the mixture, i.e. the mixture is uniformly coated on the surface of the fiber tube and filled on the inner wall of the fiber tube.
In a preferred embodiment of the present invention, the fiber tube is a high temperature degradable material.
In a preferred embodiment of the present invention, in the step (4), the method of spraying or putting the base frame into a pasty molecular sieve can be adopted to make the molecular sieve uniformly cover the surface of the base frame.
In a preferred embodiment of the present invention, before step (3), the following steps may be further included: and carrying out preheating treatment on the base frame to ensure that the base frame has certain hardness before sintering operation.
In a preferred embodiment of the present invention, the temperature of the preheating treatment is 60 to 80 ℃.
In a preferred embodiment of the present invention, in the step (3), the temperature in the rotary furnace is 500 to 800 ℃, and the duration of the sintering operation is 1.5 to 3 hours.
In a preferred embodiment of the present invention, in step (1), the alloy reinforcing element is a mixture of one or more of the following: zn, Co, Mn and Mo.
The invention solves the defects in the background technology, and has the following beneficial effects:
(1) the base frame is manufactured by adopting a powder metallurgy mode, and a porous or semi-compact structure can be formed after the powder metallurgy forming, so that the molecular sieve can enter pores of the base frame, the amount of the molecular sieve is increased, and the adsorption effect is improved;
(2) the base frame is formed by a plurality of high-temperature degradable fiber tubes, and can be formed into different shapes, so that the universality of the invention is enhanced;
(3) the use of alloy reinforcing elements enhances the hardness of the base frame after being formed;
(4) the molecular sieve is used for adsorbing gas or liquid, so that the adsorption effect is ensured.
Detailed Description
The present invention will now be described in further detail with reference to specific examples.
Example 1
A method for forming a molecular sieve base frame comprises the following steps:
(1) putting aluminum powder, plasticizer, carbon powder, alloy reinforcing elements, nickel powder, iron powder, paraffin powder and the balance of copper powder into a mixer for mixing to obtain a mixed substance;
(2) carrying out forming operation on the mixed substance to form a base frame;
(3) placing the base frame into a rotary furnace for sintering operation, and cooling the base frame to room temperature after sintering is completed;
(4) the molecular sieve is uniformly covered on the surface of the base frame, and after the covering, drying treatment is carried out to finally form the molecular sieve base frame.
Wherein: the base frame is manufactured by adopting a powder metallurgy mode, and a porous or semi-compact structure can be formed after the powder metallurgy forming, so that the molecular sieve can enter pores of the base frame, the amount of the molecular sieve is increased, and the adsorption effect is improved; the base frame is formed by a plurality of high-temperature degradable fiber tubes, and can be formed into different shapes, so that the universality of the invention is enhanced; the use of alloy reinforcing elements enhances the hardness of the base frame after being formed; the molecular sieve is used for adsorbing gas or liquid, so that the adsorption effect is ensured.
Example 2
A method for forming a molecular sieve base frame comprises the following steps:
(1) putting 5% of aluminum powder, 0.5% of plasticizer, 0.5% of carbon powder, 2% of alloy reinforcing element, 1% of nickel powder, 4% of iron powder, 2% of paraffin powder and the balance of copper powder into a mixer for mixing to obtain a mixed substance;
(2) carrying out forming operation on the mixed substance to form a base frame;
(3) putting the base frame into a rotary furnace for sintering operation, keeping the temperature of the rotary furnace at 500 ℃ for sintering operation for 1.5h, and cooling the base frame to room temperature after sintering is finished;
(4) the molecular sieve is uniformly covered on the surface of the base frame, and after the covering, drying treatment is carried out to finally form the molecular sieve base frame.
Before the step (3), the base frame can be subjected to preheating treatment at the temperature of 60 ℃, so that the base frame has certain hardness before sintering operation, and the mixed substances are prevented from falling off in the moving process of the base frame to influence the next sintering operation.
In summary, the base frame is manufactured by adopting a powder metallurgy mode, a porous or semi-compact structure is formed after the powder metallurgy forming, the molecular sieve can enter pores of the base frame, the quantity of the molecular sieve is increased, the adsorption effect is improved, meanwhile, the base frame is formed by adopting a plurality of high-temperature degradable fiber tubes, different shapes can be formed, the universality of the invention is enhanced, and the hardness of the base frame after the base frame is formed is enhanced by using alloy reinforcing elements.
Example 3
A method for forming a molecular sieve base frame comprises the following steps:
(1) putting 7% of aluminum powder, 0.5% of plasticizer, 0.7% of carbon powder, 3% of alloy reinforcing element, 3% of nickel powder, 6% of iron powder, 2% of paraffin powder and the balance of copper powder into a mixer for mixing to obtain a mixed substance;
(2) carrying out forming operation on the mixed substance to form a base frame;
(3) placing the base frame into a rotary furnace for sintering operation, keeping the temperature of the rotary furnace at 700 ℃ for sintering operation for 2h, and cooling the base frame to room temperature after sintering is completed;
(4) the molecular sieve is uniformly covered on the surface of the base frame, and after the covering, drying treatment is carried out to finally form the molecular sieve base frame.
Wherein:
the alloy reinforcing elements in the step (1) are mixed according to the following proportion: 15% of Zn, 25% of Co, 25% of Mn and the balance of Mo.
In the step (2), the base frame is composed of a plurality of high-temperature degradable fiber tubes, so that different shapes can be formed, and the universality of the invention is enhanced.
In summary, the base frame is manufactured by adopting a powder metallurgy mode, and a porous or semi-compact structure is formed after the powder metallurgy forming, so that the molecular sieve can enter pores of the base frame, the amount of the molecular sieve is increased, the adsorption effect is improved, and meanwhile, the hardness of the base frame after the base frame is formed is enhanced due to the use of alloy reinforcing elements.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (2)
1. A method for forming a molecular sieve base frame is characterized by comprising the following steps:
(1) adopting a mixer to carry out mixing operation, and uniformly mixing the following substances: 5-10% of aluminum powder, 0.5% of plasticizer, 0.5-0.8% of carbon powder, 2-4% of alloy reinforcing element, 1-5% of nickel powder, 4-8% of iron powder, 2% of paraffin powder and the balance of copper powder to form a mixed substance;
(2) carrying out forming operation on the mixed substance to form a base frame;
(3) placing the base frame into a rotary furnace for sintering operation, and cooling the base frame to room temperature after sintering is completed;
(4) uniformly covering the molecular sieve on the surface of the base frame, and drying after covering to finally form a molecular sieve base frame;
in the step (2), a fiber tube is matched with the mixed substance to carry out forming operation, namely, the mixed substance is uniformly coated on the surface of the fiber tube and filled in the inner wall of the fiber tube;
the fiber pipe is a high-temperature degradable material part;
in the step (4), the molecular sieve is uniformly covered on the surface of the base frame by adopting a method of spraying or putting the base frame into a pasty molecular sieve;
in the step (3), the temperature in the rotary furnace is 500-800 ℃, and the time of the sintering operation is 1.5-3 h;
in the step (1), the alloy reinforcing element is a mixture of one or more of the following elements: zn, Co, Mn and Mo.
2. A method of forming a molecular sieve base frame as claimed in claim 1, further comprising the following steps before step (3): and carrying out preheating treatment on the base frame to ensure that the base frame has certain hardness before sintering operation, wherein the temperature of the preheating treatment is 60-80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810989877.6A CN108941565B (en) | 2018-08-28 | 2018-08-28 | Method for forming molecular sieve base frame |
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|---|---|---|---|
| CN201810989877.6A CN108941565B (en) | 2018-08-28 | 2018-08-28 | Method for forming molecular sieve base frame |
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| Publication Number | Publication Date |
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| CN108941565A CN108941565A (en) | 2018-12-07 |
| CN108941565B true CN108941565B (en) | 2021-08-10 |
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| CN201810989877.6A Active CN108941565B (en) | 2018-08-28 | 2018-08-28 | Method for forming molecular sieve base frame |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW387826B (en) * | 1997-03-11 | 2000-04-21 | Katayama Tokushu Kogyo Kk | Method of manufacturing porous sheet porous metal sheet manufactured by method, and electrode for battery |
| US7291271B2 (en) * | 2003-12-09 | 2007-11-06 | Separation Design Group, Llc | Meso-frequency traveling wave electro-kinetic continuous adsorption system |
| CN1942396B (en) * | 2004-03-15 | 2010-09-01 | 苏黎世联合高等工业学校 | Flame synthesis of metal salt manoparticles, in particular calcium and phosphate comprising nanoparticles |
| US7309479B2 (en) * | 2005-06-29 | 2007-12-18 | Samsung Engineering Co., Ltd. | Cobalt oxide catalysts |
| GB0903262D0 (en) * | 2009-02-26 | 2009-04-08 | Johnson Matthey Plc | Filter |
| CN107362651A (en) * | 2017-09-18 | 2017-11-21 | 佛山市宝粤美科技有限公司 | A kind of emission-control equipment |
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Inventor after: Gai Yongchun Inventor after: Zhao Hongying Inventor before: Zhao Hongying |
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Effective date of registration: 20210719 Address after: 122000 wanzhangzi village, Longtan Township, Beipiao City, Chaoyang City, Liaoning Province Applicant after: BEIPIAO JINHAI MINING Co.,Ltd. Address before: Shop A902, No.35, second floor, block 10, No.9, Lvjing West Road, Chancheng District, Foshan City, Guangdong Province, 528000 Applicant before: FOSHAN BAOYUEMEI TECHNOLOGY Co.,Ltd. |
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