CN105543552B - A kind of filter Cu alloy material - Google Patents
A kind of filter Cu alloy material Download PDFInfo
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- CN105543552B CN105543552B CN201610065382.5A CN201610065382A CN105543552B CN 105543552 B CN105543552 B CN 105543552B CN 201610065382 A CN201610065382 A CN 201610065382A CN 105543552 B CN105543552 B CN 105543552B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
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Abstract
The present invention provides a kind of filter Cu alloy material, using the preparation method of the present invention Cu alloy material can be made to obtain high intensity and high filtration flux.Selected by the elemental composition of copper alloy powder powder stock, with reference to the two-step sintering technique of three-layer tablet layer base, it is obviously improved the compression strength of Cu alloy material, and ensure that filter applies required pore size filter and filtration flux, solve technical problem of the copper alloy filter under complicated harsh operating mode.
Description
Technical field
The present invention relates to Cu alloy material field, is to be related to a kind of filter Cu alloy material specifically.
Background technology
The alloy that copper alloy (copper alloy) is made of using fine copper the one or more of other elements of matrix addition.It is pure
Copper is in aubergine, also known as red copper, has excellent electric conductivity, thermal conductivity, ductility and corrosion resistance.It is mainly used for making power generation
The electrotechnical apparatus such as machine, busbar, cable, switching device, transformer and heat exchanger, pipeline, the tablet collection of solar heat collector
The heat conduction equipments such as hot device.Common copper alloy is divided into brass, bronze, 3 major class of copper-nickel alloy.
The invention belongs to Cu alloy material field, is related to one kind and is widely used in chemical industry, medicine, power generation, metallurgy and food
Deng the production method of the filter Cu alloy material of industrial circle, which is specially adapted to chemical industry gas
Filtering, metallurgy industry gas cleaning processing, the filtering of petrochemical catalyst and recycling etc..
When producing porous material using globular metallic powder, the pore size that is formed between powder particle, permeance property with
Between particle diameters it is particularly important that relation.In order to enable gas to be clean to achieve the purpose that high-precision filtration, can select
Fine fraction powder, but filter efficiency is improved, reach larger flow, then should select coarse fraction powder.Therefore, to reach preferable
Comprehensive performance, it is very difficult only to take common process.Generally use metallic filter and ceramic filter at present, but
The filter of ceramic form of tubes causes can be only applied to practicality under cryogenic conditions since itself brittleness and thermal shock resistance are low,
Itself also it is easily damaged, and produces difficulty, price is high.Metal powder pipe filter although being greatly improved in temperature in use,
But similarly exist and bear the shortcomings that pressure is low.Petrochemical industry, steel industry application field due to filter be all operated in high pressure and
In hot environment, often there is stage filter rupture event, so as to cause the failure of a whole set of filtration system, brought to production huge
Big loss, therefore, how to improve compression strength on the premise of filtration flux is ensured is that the technology for needing further to be solved is asked
Topic.
The content of the invention
In order to solve the above technical problem, the present invention provides a kind of filter Cu alloy material, is made using the present invention
The Cu alloy material that Preparation Method obtains can have high intensity high filtration flux.The technical solution adopted by the present invention is：Filter
Formed with Cu alloy material finished product comprising following element：C：0.50-1.50%, Si：0.25-0.45%, Ni：5.05-8.55%,
Zr：1.50-2.20%, Hf：0.10-0.20%, Mn：2.50-3.00%, In：1.55-1.85%, Fe：2.75-2.95%, V：
0.20-0.30%, Zn：5.80-6.50%, surplus Cu, above-mentioned percentage are mass percent.Filter Cu alloy material
Preparation method comprise the following steps：Powder batch mixing, prepare lamella base, vacuum-sintering and high temperature sintering step.
Powder batch mixing step is：It is below 100 mesh, then in batch mixing first copper alloy powder powder stock to be carried out being milled to granularity
Taken out when mixing 1~1.5 is small in equipment, mixed powder is subjected to ball milling again, and filter out the copper that granularity is 55-75 μm
Alloy powder.
Preparing lamella base step is：The copper alloy powder for taking a certain amount of granularity to be 55-75 μm, is obtained by casting machine
It is 1~2mm lamella bases I to thickness；The particle diameter for taking corresponding adaptive capacity is the fine copper metal dust of 200~250 mesh, in the lamella
It is 2~3mm lamella bases II to obtain thickness by casting machine on the basis of base I；The granularity for taking adaptive capacity again is 55-75 μm
Copper alloy powder, it is 2.5~3mm lamella bases III to obtain thickness by casting machine on the basis of the lamella base II.
Vacuum-sintering step is：The lamella base III is placed in 500~600 DEG C of vacuum drying oven and carries out vacuum-sintering, insulation
Time is 1~1.5h, and vacuum is 1.0 × 10-3~10-4Pa。
High temperature sintering step is：After semi-finished product after the vacuum-sintering are cooled to room temperature, high-temperature box type resistance is put into
In stove, 1000~1100 DEG C are warming up to the firing rate of 20~30 DEG C/min, keeps the temperature 0.5~1h, furnace cooling can obtain
Filter Cu alloy material finished product.
The compression strength of Cu alloy material finished product is 720~800MPa, and maximum diameter of hole is 35~50 μm.
Preferably, Cu alloy material finished product is formed comprising following element：C：0.50%, Si：0.35%, Ni：6.50%,
Zr：1.50%, Hf：0.10%, Mn：2.50%, In：1.75%, Fe：2.85%, V：0.25%, Zn：6.20%, surplus is
Cu。
It is an advantage of the invention that：Selected by the elemental composition of copper alloy powder powder stock, with reference to three-layer tablet layer base twice
Sintering process, hence it is evident that improve the compression strength of Cu alloy material, and ensure that filter using required pore size filter and
Filtration flux, solves technical problem of the copper alloy filter under complicated harsh operating mode.
Embodiment
With reference to embodiment and comparative example, the present invention is described in more detail.
Embodiment 1：
Filter is formed with Cu alloy material finished product comprising following element：C：0.50%, Si：0.35%, Ni：6.50%,
Zr：1.50%, Hf：0.10%, Mn：2.50%, IN：1.75%, Fe：2.85%, V：0.25%, Zn：6.20%, surplus is
Cu, above-mentioned percentage are mass percent.The preparation method of filter Cu alloy material comprises the following steps：Powder batch mixing,
Prepare lamella base, vacuum-sintering and high temperature sintering step.Powder batch mixing step is：First copper alloy powder powder stock is milled to
Granularity is below 100 mesh, is taken out when then mixing 1 is small in mixing equipment, mixed powder is carried out ball milling again, and sieve
Select the copper alloy powder that granularity is 55 μm.Preparing lamella base step is：Take the copper alloy that a certain amount of granularity is 55 μm
Powder, it is 1mm lamella bases I to obtain thickness by casting machine；The particle diameter for taking corresponding adaptive capacity is the fine copper metal dust of 200 mesh,
It is 2mm lamella bases II to obtain thickness by casting machine on the basis of the lamella base I；The granularity for taking adaptive capacity again is 55
μm copper alloy powder, it is 2.5mm lamella bases III to obtain thickness by casting machine on the basis of the lamella base II.Vacuum
Sintering step is：The lamella base III is placed in 500 DEG C of vacuum drying oven and carries out vacuum-sintering, soaking time 1.5h, vacuum
For 1.0 × 10-3pa.High temperature sintering step is：After semi-finished product after the vacuum-sintering are cooled to room temperature, high-temperature box type is put into
In resistance furnace, 1100 DEG C are warming up to the firing rate of 30 DEG C/min, keeps the temperature 0.5h, furnace cooling can obtain the filter
With Cu alloy material finished product.The compression strength of Cu alloy material finished product is 800MPa, and maximum diameter of hole is 50 μm.
Embodiment 2：
Filter is formed with Cu alloy material finished product comprising following element：C：1.50%, Si：0.45%, Ni：8.55%,
Zr：2.20%, Hf：0.10%, Mn：2.20%, In：1.55%, Fe：2.85%, V：0.20%, Zn：5.80%, surplus is
Cu, above-mentioned percentage are mass percent.The preparation method of filter Cu alloy material comprises the following steps：Powder batch mixing,
Prepare lamella base, vacuum-sintering and high temperature sintering step.Powder batch mixing step is：First copper alloy powder powder stock is milled to
Granularity is below 100 mesh, is taken out when then mixing 1.5 is small in mixing equipment, mixed powder is carried out ball milling again, and
Filter out the copper alloy powder that granularity is 75 μm.Preparing lamella base step is：The copper that a certain amount of granularity is 75 μm is taken to close
Bronze body, it is 2mm lamella bases I to obtain thickness by casting machine；The particle diameter for taking corresponding adaptive capacity is the fine copper metal powder of 250 mesh
End, it is 2.5mm lamella bases II to obtain thickness by casting machine on the basis of the lamella base I；The grain of adaptive capacity is taken again
The copper alloy powder for 75 μm is spent, it is 3mm lamella bases III to obtain thickness by casting machine on the basis of the lamella base II.
Vacuum-sintering step is：The lamella base III is placed in 500 DEG C of vacuum drying oven and carries out vacuum-sintering, soaking time 1h, vacuum
Spend for 1.0 × 10-4Pa.High temperature sintering step is：After semi-finished product after the vacuum-sintering are cooled to room temperature, high-temperature cabinet is put into
In formula resistance furnace, 1000 DEG C are warming up to the firing rate of 20 DEG C/min, keeps the temperature 1h, furnace cooling can obtain the filter
With Cu alloy material finished product.The compression strength of Cu alloy material finished product is 720MPa, and maximum diameter of hole is 35 μm.
Embodiment 3：
Filter is formed with Cu alloy material finished product comprising following element：C：1.00%, Si：0.45%, Ni：7.05%,
Zr：1.90%, Hf：0.15%, Mn：2.50%, In：1.60%, Fe：2.60%, V：0.40%, Zn：6.50%, surplus is
Cu, above-mentioned percentage are mass percent.The preparation method of filter Cu alloy material comprises the following steps：Powder batch mixing,
Prepare lamella base, vacuum-sintering and high temperature sintering step.Powder batch mixing step is：First copper alloy powder powder stock is milled to
Granularity is below 100 mesh, is taken out when then mixing 1 is small in mixing equipment, mixed powder is carried out ball milling again, and sieve
Select the copper alloy powder that granularity is 65 μm.Preparing lamella base step is：Take the copper alloy that a certain amount of granularity is 65 μm
Powder, it is 1mm lamella bases I to obtain thickness by casting machine；The particle diameter for taking corresponding adaptive capacity is the fine copper metal dust of 200 mesh,
It is 2mm lamella bases II to obtain thickness by casting machine on the basis of the lamella base I；The granularity for taking adaptive capacity again is 65
μm copper alloy powder, it is 3mm lamella bases III to obtain thickness by casting machine on the basis of the lamella base II.Vacuum is burnt
Tying step is：The lamella base III is placed in 550 DEG C of vacuum drying oven and carries out vacuum-sintering, soaking time 1.5h, vacuum is
1.0×10-3Pa.High temperature sintering step is：After semi-finished product after the vacuum-sintering are cooled to room temperature, high-temperature box type electricity is put into
Hinder in stove, be warming up to 1050 DEG C with the firing rate of 20~30 DEG C/min, keep the temperature 1h, furnace cooling can obtain the filter
With Cu alloy material finished product.The compression strength of Cu alloy material finished product is 780MPa, and maximum diameter of hole is 45 μm.
Comparative example 1：
It is resulting after being prepared using same processing step by other elements component or the copper alloy powder powder stock of content
The compression strength of copper alloy products be only up to 600MPa.
Comparative example 2：
By elemental composition and content copper alloy same as Example 1, prepared using other sintering processings or technological parameter
When, the tensile strength highest of its obtained copper alloy products only has 500MPa, and the feelings less than 20 μm also occur in maximum diameter of hole
Condition.
By the preparation method of the present invention it can be seen from embodiment 1-3 and comparative example 1 and 2, using targetedly copper
The elemental composition selection of alloy powder raw material, with reference to the two-step sintering technique of three-layer tablet layer base, hence it is evident that improve Cu alloy material
Compression strength, and ensure that filter applies required pore size filter and filtration flux, solve copper alloy filter and exist
Technical problem under complicated harshness operating mode.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (3)
- A kind of 1. filter Cu alloy material, it is characterised in that：Wherein, the Cu alloy material finished product includes following element group Into：C：0.50-1.50%, Si：0.25-0.45%, Ni：5.05-8.55%, Zr：1.50-2.20%, Hf：0.10-0.20%, Mn：2.50-3.00%, In：1.55-1.85%, Fe：2.75-2.95%, V：0.20-0.30%, Zn：5.80-6.50%, it is remaining It is mass percent to measure as Cu, above-mentioned percentage；The preparation method of the Cu alloy material comprises the following steps：Powder batch mixing, Prepare lamella base, vacuum-sintering and high temperature sintering step；The powder batch mixing step is：It is below 100 mesh, then in batch mixing first copper alloy powder powder stock to be carried out being milled to granularity Taken out when mixing 1~1.5 is small in equipment, mixed powder is subjected to ball milling again, and filter out the copper that granularity is 55-75 μm Alloy powder；The lamella base step for preparing is：The copper alloy powder for taking a certain amount of granularity to be 55-75 μm, is obtained by casting machine It is 1~2mm lamella bases I to thickness；The particle diameter for taking corresponding adaptive capacity is the fine copper metal dust of 200~250 mesh, in the lamella It is 2~3mm lamella bases II to obtain thickness by casting machine on the basis of base I；The granularity for taking adaptive capacity again is 55-75 μm Copper alloy powder, it is 2.5~3mm lamella bases III to obtain thickness by casting machine on the basis of the lamella base II；The vacuum-sintering step is：The lamella base III is placed in 500~600 DEG C of vacuum drying oven and carries out vacuum-sintering, insulation Time is 1~1.5h, and vacuum is 1.0 × 10-3~10-4Pa；The high temperature sintering step is：After semi-finished product after the vacuum-sintering are cooled to room temperature, high-temperature box type resistance is put into In stove, 1000~1100 DEG C are warming up to the firing rate of 20~30 DEG C/min, keeps the temperature 0.5~1h, furnace cooling can obtain Filter Cu alloy material finished product.
- 2. Cu alloy material according to claim 1, it is characterised in that：The compression strength of the Cu alloy material finished product is 720~800MPa, maximum diameter of hole are 35~50 μm.
- 3. Cu alloy material according to claim 1, it is characterised in that：The Cu alloy material finished product includes following element Composition：C：0.50%, Si：0.35%, Ni：6.50%, Zr：1.50%, Hf：0.10%, Mn：2.50%, In：1.75%, Fe： 2.85%, V：0.25%, Zn：6.20%, surplus Cu.
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| CN201610065382.5A CN105543552B (en) | 2016-01-29 | 2016-01-29 | A kind of filter Cu alloy material |
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| CN201610065382.5A CN105543552B (en) | 2016-01-29 | 2016-01-29 | A kind of filter Cu alloy material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1517446A (en) * | 2003-01-22 | 2004-08-04 | ͬ�Ϳ�ҵ��ʽ���� | Copper-based alloy and its manufacturing method |
| CN101899587A (en) * | 2006-07-21 | 2010-12-01 | 株式会社神户制钢所 | Copper alloy sheets for electrical/electronic part |
| CN101925680A (en) * | 2008-01-31 | 2010-12-22 | 株式会社神户制钢所 | Copper alloy plate having excellent anti-stress relaxation properties |
| CN104046836A (en) * | 2005-12-22 | 2014-09-17 | 株式会社神户制钢所 | Copper alloy having excellent stress relaxation property |
-
2016
- 2016-01-29 CN CN201610065382.5A patent/CN105543552B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1517446A (en) * | 2003-01-22 | 2004-08-04 | ͬ�Ϳ�ҵ��ʽ���� | Copper-based alloy and its manufacturing method |
| CN104046836A (en) * | 2005-12-22 | 2014-09-17 | 株式会社神户制钢所 | Copper alloy having excellent stress relaxation property |
| CN101899587A (en) * | 2006-07-21 | 2010-12-01 | 株式会社神户制钢所 | Copper alloy sheets for electrical/electronic part |
| CN101925680A (en) * | 2008-01-31 | 2010-12-22 | 株式会社神户制钢所 | Copper alloy plate having excellent anti-stress relaxation properties |
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