A kind of forming method of molecular sieve pedestal
Technical field
The invention belongs to technical field of molecular sieve more particularly to a kind of forming methods of molecular sieve pedestal.
Background technique
Molecular sieve is a kind of include accurate and single small hole material, can be used for adsorbed gas or liquid.Foot
Enough small molecules can be adsorbed by duct, and bigger molecule then cannot, it is dividing unlike a common sieve
It is operated in sub- level.
Powder metallurgy is to produce metal or metal powder is used to manufacture metal by forming and sintering operation as raw material
The technology of material, composite material and various types product, currently, PM technique be widely used in traffic,
The fields such as machinery, electronics, aerospace, weapons, biology, new energy, information and nuclear industry become in new material science and most send out
One of the branch of exhibition vigor.
At present for the use of molecular sieve, general there are two types of modes, the first is that molecular sieve is directly put into liquid or gas
In body;Second is to use sieve as the carrier of molecular sieve, to carry out adsorption operations.Wherein first way can not be to volatilization
Gas out is adsorbed, to reduce adsorption effect;Second since existing sieve is compact texture, although molecule
The partial size of sieve is minimum, but molecular sieve cannot be introduced into the hole of sieve, while the reduction that will will lead to adsorption effect.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, provide a kind of forming method of molecular sieve pedestal, are able to use powder
The mode of metallurgy shapes pedestal, then combines with molecular sieve, molecular sieve pedestal is formed, for carrying out absorption behaviour to gas or liquid
Make, structure is simple, and adsorption effect is good.
In order to achieve the above objectives, the technical solution adopted by the present invention are as follows: a kind of forming method of molecular sieve pedestal, including with
Lower step:
(1) mixing operation is carried out using batch mixer, following substance is uniformly mixed: aluminium powder 5%~10%, plasticiser
0.5%, carbon dust 0.5%~0.8%, alloy enhance element 2%~4%, nickel powder 1%~5%, iron powder 4%~8%, paraffin powder
2%, surplus is copper powder, forms compounding substances;
(2) operation is formed to compounding substances, forms pedestal;
(3) pedestal is put into rotary furnace and is sintered operation, after the completion of sintering, pedestal is cooled to room temperature;
(4) make molecular sieve uniform fold after pedestal surface, covering, be dried, ultimately form molecular sieve pedestal.
In a preferred embodiment of the present invention, in step (2), fibre pipe can be used that the compounding substances is cooperated to be formed
Compounding substances are uniformly applied to the fiber pipe surface and are filled in the fiber inside pipe wall by operation.
In a preferred embodiment of the present invention, the fibre pipe is high temperature degradation material part.
In a preferred embodiment of the present invention, in step (4), spraying can be used or the pedestal is put into paste molecular sieve
Method, make the molecular sieve uniform fold in the pedestal surface.
In a preferred embodiment of the present invention, before step (3), can with the following steps are included: to the pedestal into
Row the pre-heat treatment makes the pedestal have certain hardness before being sintered operation.
In a preferred embodiment of the present invention, the temperature of the pre-heat treatment is 60~80 DEG C.
In a preferred embodiment of the present invention, in step (3), the temperature in the rotary furnace is 500~800 DEG C, described
When a length of 1.5~3h of sintering operation.
In a preferred embodiment of the present invention, in step (1), the alloy enhancing element is the mixed of one or more of
Close object: Zn, Co, Mn, Mo.
The invention solves the defect existing in the background technology, the present invention have it is following the utility model has the advantages that
(1) pedestal is made by the way of powder metallurgy, it is porous or half densification due to will form after powder metallurgy formation
Structure is conducive to molecular sieve and enters in the hole of pedestal, increases the amount of molecular sieve, to improve adsorption effect;
(2) pedestal using it is several can the fibre pipe of high temperature degradation constitute, different shape can be formed, enhanced of the invention logical
The property used;
(3) use of alloy enhancing element, enhances the hardness after pedestal is formed;
(4) molecular sieve adsorbed gas or liquid are used, ensure that adsorption effect.
Specific embodiment
Presently in connection with specific embodiment, the present invention is described in further detail.
Embodiment 1
A kind of forming method of molecular sieve pedestal, comprising the following steps:
(1) aluminium powder, plasticiser, carbon dust, alloy enhancing element, nickel powder, iron powder, paraffin powder and surplus copper powder are put into mixed
It is mixed in material machine, obtains compounding substances;
(2) operation is formed to compounding substances, forms pedestal;
(3) pedestal is put into rotary furnace and is sintered operation, after the completion of sintering, pedestal is cooled to room temperature;
(4) make molecular sieve uniform fold after pedestal surface, covering, be dried, ultimately form molecular sieve pedestal.
Wherein: pedestal is made by the way of powder metallurgy, porous or half is fine and close due to will form after powder metallurgy formation
Structure, be conducive to molecular sieve and enter in the hole of pedestal, increase the amount of molecular sieve, to improve adsorption effect;Pedestal
Using it is several can high temperature degradation fibre pipe constitute, different shape can be formed, enhance versatility of the invention;Alloy enhancing member
The use of element, enhances the hardness after pedestal is formed;Using molecular sieve adsorbed gas or liquid, adsorption effect ensure that.
Embodiment 2
A kind of forming method of molecular sieve pedestal, comprising the following steps:
(1) by 5% aluminium powder, 0.5% plasticiser, 0.5% carbon dust, 2% alloy enhancing element, 1% nickel powder,
4% iron powder, 2% paraffin powder and surplus copper powder be put into batch mixer and mixed, obtain compounding substances;
(2) operation is formed to compounding substances, forms pedestal;
(3) pedestal is put into rotary furnace and is sintered operation, the temperature in rotary furnace is 500 DEG C, keeps 500 DEG C of progress
After the completion of sintering, pedestal is cooled to room temperature by sintering operation 1.5h;
(4) make molecular sieve uniform fold after pedestal surface, covering, be dried, ultimately form molecular sieve pedestal.
Wherein, before step (3), the pre-heat treatment can also be carried out to pedestal, the temperature of the pre-heat treatment is 60 DEG C, makes base
Frame be sintered operation before have certain hardness, prevent pedestal in moving process, compounding substances are fallen, under the influence of one
The sintering operation of step.
To sum up, the present invention makes pedestal by the way of powder metallurgy, it is more due to will form after powder metallurgy formation
Hole or half fine and close structure, are conducive to molecular sieve and enter in the hole of pedestal, increase the amount of molecular sieve, to improve absorption
Effect, simultaneously because pedestal using it is several can high temperature degradation fibre pipe constitute, so different shape can be formed, enhance this hair
Bright versatility, and the use of alloy enhancing element, enhance the hardness after pedestal is formed.
Embodiment 3
A kind of forming method of molecular sieve pedestal, comprising the following steps:
(1) by 7% aluminium powder, 0.5% plasticiser, 0.7% carbon dust, 3% alloy enhancing element, 3% nickel powder,
6% iron powder, 2% paraffin powder and surplus copper powder be put into batch mixer and mixed, obtain compounding substances;
(2) operation is formed to compounding substances, forms pedestal;
(3) pedestal is put into rotary furnace and is sintered operation, the temperature in rotary furnace is 700 DEG C, keeps 500 DEG C of progress
After the completion of sintering, pedestal is cooled to room temperature by sintering operation 2h;
(4) make molecular sieve uniform fold after pedestal surface, covering, be dried, ultimately form molecular sieve pedestal.
Wherein:
Alloy enhancing element in step (1) is mixed by following ratio: Zn 15%, Co 25%, Mn 25%, surplus are
Mo。
In step (2) pedestal it is several can high temperature degradation fibre pipe constitute, different shape can be formed, enhanced of the invention
Versatility.
To sum up, the present invention makes pedestal by the way of powder metallurgy, it is more due to will form after powder metallurgy formation
Hole or half fine and close structure, are conducive to molecular sieve and enter in the hole of pedestal, increase the amount of molecular sieve, to improve absorption
Effect, while the use of alloy enhancing element, enhance the hardness after pedestal is formed.
Based on the above description of the preferred embodiments of the present invention, through the above description, related personnel completely can be with
Without departing from the scope of the technological thought of the present invention', various changes and amendments are carried out.The technical scope of this invention
It is not limited to the contents of the specification, it is necessary to determine the technical scope according to the scope of the claims.