CN107159878A - A kind of metal charge body and its preparation method and application - Google Patents
A kind of metal charge body and its preparation method and application Download PDFInfo
- Publication number
- CN107159878A CN107159878A CN201710343975.8A CN201710343975A CN107159878A CN 107159878 A CN107159878 A CN 107159878A CN 201710343975 A CN201710343975 A CN 201710343975A CN 107159878 A CN107159878 A CN 107159878A
- Authority
- CN
- China
- Prior art keywords
- metal
- polymer material
- powder
- high polymer
- solvent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B22F1/102—Metallic powder coated with organic material
-
- 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
- B22F1/14—Treatment of metallic powder
- B22F1/148—Agglomerating
-
- 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
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention relates to a kind of metal charge body and its preparation method and application, the preparation method of the metal charge body is：Metal material powder is mixed with high polymer material and solvent, the oxide layer of powder surface cladding is removed using the effect of mechanical force in a reservoir, obtains mixture；Remove after the solvent in mixture, the metal material powder that obtained high polymer material is coated is granulated；After the completion of granulation, by obtained particle baking molding, the metal charge body that high polymer material is coated completely is obtained.The present invention realizes the complete removal to oxide-film using the method for physics, and can be prevented effectively from the generation again of metal material surface oxide layer.The metal charge body that obtained high polymer material is coated completely, can apply in injection sintering process, adds the application surface of metal material.Aluminium and aluminium alloy are especially introduced into injection sintering process, can manufactured size is small, baroque aluminium and aluminum alloy spare part, with good economic benefit and wide application prospect.
Description
Technical field
The present invention relates to metal powder material preparation field, and in particular to a kind of metal charge body and preparation method thereof and should
With.
Background technology
Metal and its alloy material are easily oxidized in atmosphere, oxide-film are formed on surface, the presence of oxide-film can shadow
Ring the sintering character of metal material.
By taking aluminium and aluminium alloy as an example, at room temperature, block aluminum alloy surface oxide-film is 10-20 μm, and atomization is prepared
Al alloy powder, the thickness of its oxide-film reaches 50-150 μm, and is amorphous state or hydrate, and property is highly stable, high temperature
Under be difficult to decompose.When being sintered under normal condition, aluminum metal atom can not diffuse through this layer of continuous and fine and close oxide-film, powder
It can not merge into each other and grow up between particle, it is difficult to eliminate hole so that product reaches densification.
In the prior art it is general improved by destroying the oxide-film of metal material surface or the method for liquid-phase sintering aluminium and
The sintering character of aluminium alloy.
The mode of the oxide-film on the destruction surface is mainly that aspect has following manner：(1) addition magnesium metal carries out solid phase
Reaction-sintered：The activity of magnesium is much larger than aluminium, and the free energy of its oxide formation compares Al2O3Much smaller, therefore, magnesium additive should
For aluminium alloy it is powder sintered in, can be by Al2O3Pure metallic aluminum is reduced into, the oxide of magnesia-alumina spinel structure is generated.Magnesium
Spread in aluminum substrate, volume is changed, shearing force is produced on oxide-film, oxide-film is finally destroyed, is conducive to atom
Diffusion and sintering be smoothed out, improve the density of aluminium alloy.But it has been investigated that.The addition of Magnesium in Aluminum Alloys will reach
It can just cause the contraction of sintering volume to 0.15%, effective elimination to oxide-film be realized, while playing a part of solution strengthening.
(2) reducing atmosphere is sintered：When being sintered under reducing atmosphere, circumgranular reducibility gas and Al2O3Reaction, displaces gold
Belong to aluminium.Conventional reducing gas hydrogen is very active chemical element.Can occur displacement reaction with metal oxide.Equally,
Hydrogen also can be with oxide Al2O3React, in sintering process, Al2O3Film is gradually thinned by constantly reacting, so that
Carried out intergranular aluminium atom diffusion, the densification for becoming bulk material.But hydrogen has potential safety hazard, it can also increase
Production cost.
There is following manner in terms of liquid-phase sintering：Metal and its alloy powder pressed compact are only difficult to obtain very by solid-phase sintering
High density, if under certain sintering temperature, eutectic constituent element is melted to form low melting eutecticses thing, and material is moved as caused by liquid phase
Move faster than solid phase, final liquid phase will be filled with the space in sintered body, it is possible thereby to obtain the sinter that density is high, performance is good.So
And the addition of liquid-phase sintering Al-alloy products mutually must possess following condition：(1) it is less than aluminium alloy fusing point；(2) it is immiscible with aluminium；
(3) liquid phase produced must have good wetability to aluminum alloy granule surface.Conventional addition mutually has the gold such as Cu, Sn, Zn, Mg
Category, or these metallic elements are combined addition.
Above-mentioned mode is all that the removal to metal material oxide-film is realized by chemically reacting, and can not be prevented effectively from oxygen
Change the generation again of layer.Go after oxide film dissolving, the metal material surface can be oxidized once again.Therefore, entered using metal material
Row injection sintering is always a difficult point, especially aluminium and aluminium alloy, and its surface is easily oxidized, it is impossible in injection sintering process
In use.
The content of the invention
In view of problems of the prior art, the invention provides a kind of metal charge body and its preparation method and application,
It compensate for removing deficiency present in metal oxide film technology currently with chemical reaction mode, metal material can be prevented effectively from
The generation again of surface oxide layer.Meanwhile, obtained metal charge body can especially be realized with injection sintering process perfect adaptation
Aluminium and aluminium alloy are introduced into injection sintering process, performance more preferable product can be prepared, bigger economic benefit is obtained.
For up to this purpose, the present invention uses following technical scheme：
In a first aspect, the present invention provides a kind of preparation method of metal charge body, it the described method comprises the following steps：
(1) metal material powder is mixed with high polymer material and solvent, removed in a reservoir using the effect of mechanical force
The oxide layer of powder surface cladding, obtains mixture；
(2) solvent in the mixture that removing step (1) is obtained, obtains the metal material feed powder coated through high polymer material
Body；
(3) the metal material powder of the high polymer material cladding obtained step (2) is granulated；
(4) after the completion of step (3) described granulation, by obtained particle baking molding, obtain high polymer material and coat completely
Metal charge body.
By the present invention in that metal material powder is made in the state of being mixed with high polymer material and solvent using mechanical force
Surface oxide layer comes off because of intergranular friction, while because powder is immersed in solvent, metal material can be kept to avoid secondary oxygen
Change and produce.It compensate for removing deficiency present in metal oxide film technology currently with chemical reaction mode, can be prevented effectively from
The generation again of metal material surface oxide layer.
Solvent, granulation and the operation of baking molding are removed by follow-up, obtained what high polymer material was coated completely
Metal charge body.Due to the insulating effect of high polymer material, the metal charge body will not be oxidized, and then can apply to injection burning
Tie in technique.
According to the present invention, step (1) described metal material is simple metal and/or its corresponding alloy.
The technique that the present invention is provided is adapted to the conventional simple metal and its corresponding alloy material of the overwhelming majority, for example, can be
Copper and copper alloy, aluminium and/or aluminium alloy, titanium or titanium alloy, iron and ferroalloy, neodymium and neodymium alloy etc., but it is non-be only limitted to this, be limited to
Length and the consideration for simplicity, the present invention no longer exclusive list.
Metal material of the present invention is preferably aluminium and/or aluminium alloy；The aluminium alloy can be the serial Solder for Al-Cu Joint Welding of 2XXX
Based alloy, 3XXX series aluminums-manganese-base alloy, 4XXX series aluminums-silicon-base alloy, 5XXX series aluminums-magnesium base alloy, 6XXX series
Any one in Al-Si-Mg based alloy or 7XXX series aluminums-magnesium-zinc-containing alloy.
According to the present invention, in the aluminium alloy can selectivity the nonmetallic hardening constituent of addition.
According to the present invention, the nonmetallic hardening constituent is ceramic material, preferably oxide ceramics, nitride ceramics, carbon
Compound ceramics or boride ceramics in any one or at least two combination, for example can be oxide ceramics, nitride
Any one in ceramics, carbide ceramics or boride ceramics；Typical but non-limiting is combined as：Oxide ceramics and nitrogen
Compound ceramics；Carbide ceramics and boride ceramics；Oxide ceramics and carbide ceramics；Oxide ceramics and boride pottery
Porcelain；Nitride ceramics and carbide ceramics；Nitride ceramics and boride ceramics；Oxide ceramics, nitride ceramics and carbonization
Thing ceramics；Oxide ceramics, nitride ceramics and boride ceramics；Nitride ceramics, carbide ceramics and boride ceramics；Oxygen
Compound ceramics, nitride ceramics, carbide ceramics and boride ceramics.
According to the present invention, step (1) described high polymer material is thermoset macromolecule material and/or heat commonly used in the art
Plastic macromolecule material, for example, can be phenoplasts, epoxy plastics, aminoplast, unsaturated polyester (UP), alkyd plastics, poly- second
Alkene, polypropylene, polyvinyl chloride, polystyrene, polyformaldehyde, makrolon, polyamide, acrylics, other polyolefin and
Its copolymer, polysulfones or polyphenylene oxide etc., but it is non-be only limitted to this, as space is limited and for concise consideration, no longer limit of the invention
Enumerate.
According to the present invention, step (1) described solvent be arene, fat hydrocarbon, alicyclic hydrocarbon type, halogenated hydrocarbons, alcohols,
In ethers, esters, ketone or diol, derivatives any one or at least two combination, for example can be arene, fat
Any one in fat hydro carbons, alicyclic hydrocarbon type, halogenated hydrocarbons, alcohols, ethers, esters, ketone or diol, derivatives；It is typical but non-
Limited is combined as：Arene and fat hydrocarbon；Alicyclic hydrocarbon type and halogenated hydrocarbons；Alcohols and ethers；Esters and ketone；Virtue
Fragrant hydro carbons and diol, derivatives；Fat hydrocarbon, alicyclic hydrocarbon type and halogenated hydrocarbons etc., as space is limited and for concise consideration, sheet
Invention no longer exclusive list.
According to the present invention, after metal material powder is mixed with high polymer material and solvent in step (1), in ball milling bucket
The oxide layer of powder surface cladding is removed using the mode of ball milling.
The advantage of the oxide layer of powder surface cladding is removed using the mode of ball milling is：Can be by addition to the friction between powder
The species reinforcing grinding rate and effect of abrasive particle, and equipment is simple, it is easy to operate.
The present invention does not do particular determination to the time of mechanical force in step (1), using mechanical force to powder, macromolecule
The mixture of material and solvent carries out lasting effect, untill the oxide layer of metal material powder surface crushes remove completely.
Preferably, step (1) powder and high polymer material are in the solvent is immersed in.
Utilize heating by solvent evaporation and/or the mode vacuumized to molten in mixture according to the present invention, in step (2)
Agent is reclaimed.
According to the present invention, after step (3) described granulation, the particle that particle diameter D90 is distributed in 100-150 μm, described are obtained
Grain particle diameter can be 100 μm, 105 μm, 110 μm, 115 μm, 120 μm, 125 μm, 130 μm, 135 μm, 140 μm, 145 μm or
Specific point value between 150 μm, and above-mentioned numerical value, as space is limited and for concise consideration, the present invention no longer exclusive list
The specific point value that the scope includes.
According to the present invention, the temperature of step (4) described baking molding is 140-180 DEG C, for example, can be 140 DEG C, 145
DEG C, 150 DEG C, 155 DEG C, 160 DEG C, 165 DEG C, 170 DEG C, 175 DEG C or the specific point value between 180 DEG C, and above-mentioned numerical value, be limited to
Length and the consideration for simplicity, the present invention specific point value that no longer scope described in exclusive list includes.
Second aspect, the present invention provides the metal charge body that a kind of method as described in relation to the first aspect is prepared.
The metal charge body that the present invention is obtained, high polymer material is coated on outside metal material powder completely, effective isolation
Oxygen, prevents metal material powder from being oxidized.It can be connected as raw material with the preparation technology perfection of subsequent metal product.
The third aspect, the present invention provides a kind of application of metal charge body as described in second aspect, and the metal charge body should
For being molded sintering process.
Exemplary, the concrete operations of the application can be following steps, but non-be only limitted to this：
(1) the metal charge body and polymer material mixing are granulated；
(2) step (1) is granulated to the particle injection moulding formed, green product is obtained；
(3) green product for obtaining step (2) carries out degreasing；
(4) product after step (3) degreasing is sintered, obtains finished product；
(5) optionally, the finished product obtained to step (4) carries out post-processing processing.
Preferably, the ratio of the volume of step (1) the metal charge body and high polymer material is (40-70):(60-30),
For example can be 2:3、3:4、4:5、1:1、5:4、4:3、3:2、5:3、2:1 or 7:It is specific between 3, and above-mentioned numerical value
Value, as space is limited and for concise consideration, the present invention specific point value that no longer scope described in exclusive list includes.
The high polymer material of the invention described in above-mentioned application process is the material commonly used in injection sintering process, for example may be used
To be phenolic aldehyde modeling ester, epoxy modeling ester, amino modeling ester, unsaturated polyester (UP) or alkyd modeling ester etc., but it is non-be only limitted to this, as space is limited and
For concise consideration, the present invention no longer exclusive list.
Preferably, the temperature of step (1) described mixing is 165-175 DEG C, for example can be 165 DEG C, 166 DEG C, 167 DEG C,
Specific point value between 168 DEG C, 169 DEG C, 170 DEG C, 171 DEG C, 172 DEG C, 173 DEG C, 174 DEG C or 175 DEG C, and above-mentioned numerical value,
As space is limited and for concise consideration, the present invention specific point value that no longer scope described in exclusive list includes.
Preferably, the time of step (1) described mixing be 0.5-2h, for example can be 0.5h, 0.7h, 1h, 1.2h,
Specific point value between 1.5h, 1.7h or 2h, and above-mentioned numerical value, as space is limited and for concise consideration, the present invention is no longer
The specific point value that scope described in exclusive list includes.
Preferably, the particle diameter of the particle formed after step (1) described granulation be 3-5mm, for example can be 3mm, 3.3mm,
Specific point value between 3.5mm, 3.8mm, 4mm, 4.3mm, 4.5mm, 4.8mm or 5mm, and above-mentioned numerical value, as space is limited and
For concise consideration, the present invention specific point value that no longer scope described in exclusive list includes.
Preferably, the temperature of step (2) described injection is 180-210 DEG C, for example can be 180 DEG C, 185 DEG C, 190 DEG C,
Specific point value between 195 DEG C, 200 DEG C, 205 DEG C or 210 DEG C, and above-mentioned numerical value, as space is limited and for concise consideration,
The present invention specific point value that no longer scope described in exclusive list includes.
Preferably, the pressure of step (2) described injection be 90-120MPa, for example can be 90MPa, 95MPa, 100MPa,
Specific point value between 105MPa, 110MPa, 115MPa or 120MPa, and above-mentioned numerical value, as space is limited and for simplicity
Consider, the present invention specific point value that no longer scope described in exclusive list includes.
Preferably, 100-140 DEG C of the temperature of step (3) described degreasing for example can be 100 DEG C, 105 DEG C, 110 DEG C, 115
DEG C, 120 DEG C, 125 DEG C, 130 DEG C, 135 DEG C or the specific point value between 140 DEG C, and above-mentioned numerical value, as space is limited and for letter
Bright consideration, the present invention specific point value that no longer scope described in exclusive list includes.
Preferably, the method for step (3) described degreasing can or water de- for solution-off, acid it is de- in any one.
Preferably, the temperature of step (4) described sintering is 550-620 DEG C, for example can be 550 DEG C, 560 DEG C, 570 DEG C,
Specific point value between 580 DEG C, 590 DEG C, 600 DEG C, 610 DEG C or 620 DEG C, and above-mentioned numerical value, as space is limited and for simplicity
Consideration, the present invention specific point value that no longer scope described in exclusive list includes.
Preferably, the time of step (4) described sintering is 1-4h, for example, can be 1h, 1.5h, 2h, 2.5h, 3h, 3.5h
Or the specific point value between 4h, and above-mentioned numerical value, as space is limited and for concise consideration, the present invention no longer exclusive list institute
State the specific point value that scope includes.
Optionally, the reprocessing that precise measure and appearance surfaces are carried out to finished product is handled by post-processing, to meet to visitor
Requirement of the family to product.
Compared with prior art, the present invention at least has the advantages that：
(1) present invention compensate for removing not enough present in metal oxide film technology, profit currently with chemical reaction mode
The complete removal to oxide-film is realized with the method for physics, and the production again of metal material surface oxide layer can be prevented effectively from
It is raw.
(2) present invention has obtained the metal charge body of the complete metal material for coating powder of high polymer material, can as raw material with
The preparation technology perfection linking of subsequent metal product, adds the application surface of metal material.
(3) the metal charge body that the present invention is obtained can be applied in injection sintering process, be noted by the way that aluminium and aluminium alloy are introduced
Sintering process is moulded, can manufactured size be small, baroque aluminium and aluminum alloy spare part.
Brief description of the drawings
Fig. 1 is the process chart that the metal-powder that a kind of embodiment of the invention is provided is prepared and applied.
The present invention is described in more detail below.But following examples is only the simple example of the present invention, not generation
Table or limitation the scope of the present invention, protection scope of the present invention are defined by claims.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
The present invention provides the preparation method and its application process of a kind of metal-powder in embodiment part.Such as
Shown in Fig. 1, prepared by the metal-powder that a kind of embodiment of the invention is provided and the technological process of application is：By metal material
Feed powder body is mixed with high polymer material and solvent, removes the oxidation of powder surface cladding using the effect of mechanical force in a reservoir
Layer, obtains mixture；Remove after the solvent in mixture, the metal material powder that obtained high polymer material is coated is made
Grain；After the completion of granulation, by obtained particle baking molding, the metal charge body that high polymer material is coated completely is obtained；By gained gold
Category material body is granulated with polymer material mixing；The particle injection moulding formed will be granulated, obtain green product；Green product is entered
Row degreasing；Product after degreasing is sintered, finished product is obtained；Post-processing processing is carried out to obtained finished product.
For the present invention is better described, technical scheme is readily appreciated, of the invention is typical but non-limiting
Embodiment is as follows：
Embodiment 1
Metal charge body is prepared in accordance with the following methods：
(1) by the serial Al-Si-Mg base alloy powders of 6XXX with being placed in ball milling bucket after phenolic aldehyde moulds ester and alcohol solvent is mixed
In, obtain mixture after ball milling 10h；
(2) surface scum for the mixture that removal step (1) is obtained, carrying out heating to mixture evaporates solvent, simultaneously
Solvent is reclaimed using the mode vacuumized, obtains moulding the aluminum alloy materials powder of ester cladding through phenolic aldehyde；
(3) the aluminum alloy materials powder of the phenolic aldehyde modeling ester cladding obtained using comminutor to step (2) is granulated, and is obtained
Particle diameter D90 is distributed in 100-150 μm of particle；
(4) particle for obtaining step (3) is toasted at 180 DEG C, particle surface solidification, obtains phenolic aldehyde modeling ester complete
The aluminium alloy material body of cladding.
Aluminium alloy material body prepared by this implementation is applied to injection moulding degreasing process, comprises the following steps：
(1) the aluminium alloy material body and polyformaldehyde are pressed 1:1 volume ratio mixing, it is mixed in banbury at 170 DEG C
Refine 1h；Then the particle for causing particle diameter to be 3-5mm is gone in comminutor；
(2) particle for obtaining step (1) is injected under 200 DEG C of temperature, 100MPa pressure, obtains required shape
The green compact of shape；
(3) green compact for obtaining step (2) are transferred in debinding furnace, and acid filling takes off under conditions of 120 DEG C, medium are nitric acid
Fat 4.5h；
(4) product after degreasing is sintered into 2.5h at 600 DEG C, that is, obtains the serial Al-Si-Mg based alloys of 6XXX and sinter into
Product part.
Embodiment 2
Metal charge body is prepared in accordance with the following methods：
(1) 3XXX series aluminums-manganese-base alloy powder and 2wt% oxide ceramic powder, phenolic aldehyde are moulded into ester and alcohol solvent is mixed
It is placed in after conjunction in ball milling bucket, mixture is obtained after ball milling 8h；
(2) surface scum for the mixture that removal step (1) is obtained, using the mode vacuumized to molten in mixture
Agent is reclaimed, and obtains moulding the aluminum alloy materials powder of ester cladding through phenolic aldehyde；
(3) the aluminum alloy materials powder of the phenolic aldehyde modeling ester cladding obtained using comminutor to step (2) is granulated, and is obtained
Particle diameter D90 is distributed in 100-150 μm of particle；
(4) particle for obtaining step (3) is toasted at 160 DEG C, particle surface solidification, obtains phenolic aldehyde modeling ester complete
The aluminium alloy material body of cladding.
Aluminium alloy material body prepared by this implementation is applied to injection moulding degreasing process, comprises the following steps：
(1) the aluminium alloy material body and polyformaldehyde are pressed 3:2 volume ratio mixing, it is mixed in banbury at 175 DEG C
Refine 0.8h；Then the particle for causing particle diameter to be 3-5mm is gone in comminutor；
(2) particle for obtaining step (1) is injected under 210 DEG C of temperature, 120MPa pressure, obtains required shape
The green compact of shape；
(3) green compact for obtaining step (2) are transferred in debinding furnace, and acid filling takes off under conditions of 140 DEG C, medium are nitric acid
Fat 4h；
(4) product after degreasing is sintered into 1h at 620 DEG C, that is, obtains 3XXX series aluminums-sintering finished part of manganese-base alloy.
Embodiment 3
Metal charge body is prepared in accordance with the following methods：
(1) it is placed in after 7XXX series aluminums-magnesium-zinc-containing alloy is mixed with polyethylene and alcohol solvent in ball milling bucket, ball milling
Mixture is obtained after 6h；
(2) surface scum for the mixture that removal step (1) is obtained, carrying out heating to mixture evaporates solvent, simultaneously
Solvent is reclaimed, the aluminum alloy materials powder coated through polyethylene is obtained；
(3) the aluminum alloy materials powder of the polyethylene cladding obtained using comminutor to step (2) is granulated, and obtains grain
Footpath D90 is distributed in 100-150 μm of particle；
(4) particle for obtaining step (3) is toasted at 140 DEG C, particle surface solidification, is obtained polyethylene and is wrapped completely
The aluminium alloy material body covered.
Aluminium alloy material body prepared by this implementation is applied to injection moulding degreasing process, comprises the following steps：
(1) the aluminium alloy material body and polyformaldehyde are pressed 7:3 volume ratio mixing, it is mixed in banbury at 165 DEG C
Refine 2h；Then the particle for causing particle diameter to be 3-5mm is gone in comminutor；
(2) particle for obtaining step (1) is injected under 180 DEG C of temperature, 90MPa pressure, obtains required shape
The green compact of shape；
(3) green compact for obtaining step (2) are transferred in debinding furnace, and acid filling takes off under conditions of 100 DEG C, medium are nitric acid
Fat 5h；
(4) product after degreasing is sintered into 4h at 550 DEG C, that is, obtains 7XXX series aluminums-magnesium-zinc-containing alloy sintering finished
Part；
(5) finished parts obtained to step (4) carry out the reprocessing of precise measure and appearance surfaces.
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of preparation method of metal charge body, it is characterised in that the described method comprises the following steps：
(1) metal material powder is mixed with high polymer material and solvent, removes powder using the effect of mechanical force in a reservoir
Surface coated oxide layer, obtains mixture；
(2) solvent in the mixture that removing step (1) is obtained, obtains the metal material powder coated through high polymer material；
(3) the metal material powder of the high polymer material cladding obtained step (2) is granulated；
(4) after the completion of step (3) described granulation, by obtained particle baking molding, the gold that high polymer material is coated completely is obtained
Category material body.
2. the method as described in claim 1, it is characterised in that step (1) described metal material is simple metal and/or its correspondence
Alloy；
Preferably, the metal material is aluminium and/or aluminium alloy；
Preferably, the aluminium alloy is the serial aluminum and copper-based alloys of 2XXX, 3XXX series aluminums-manganese-base alloy, 4XXX series aluminums-silicon
In the serial Al-Si-Mg based alloy of based alloy, 5XXX series aluminums-magnesium base alloy, 6XXX or 7XXX series aluminums-magnesium-zinc-containing alloy
Any one；
Preferably, nonmetallic hardening constituent is contained in the aluminium alloy；
Preferably, the nonmetallic hardening constituent is ceramic material, preferably oxide ceramics, nitride ceramics, carbide ceramics
In boride ceramics any one or at least two combination.
3. method as claimed in claim 1 or 2, it is characterised in that step (1) described high polymer material is thermosetting polymer
Material and/or thermoplastic macromolecule material.
4. the method as described in claim any one of 1-3, it is characterised in that step (1) described solvent is arene, fat
Any one in hydro carbons, alicyclic hydrocarbon type, halogenated hydrocarbons, alcohols, ethers, esters, ketone or diol, derivatives or at least two
Combination.
5. the method as described in claim any one of 1-4, it is characterised in that by metal material powder and high score in step (1)
After sub- material and solvent mixing, the oxide layer of powder surface cladding is removed using the mode of ball milling in ball milling bucket；
Preferably, step (1) powder and high polymer material are in the solvent is immersed in.
6. the method as described in claim any one of 1-5, it is characterised in that in step (2) using heating by solvent evaporation and/
Or the mode vacuumized is reclaimed to the solvent in mixture.
7. the method as described in claim any one of 1-6, it is characterised in that after step (3) described granulation, obtain particle diameter D90
It is distributed in 100-150 μm of particle.
8. the method as described in claim any one of 1-7, it is characterised in that the temperature of step (4) described baking molding is
140-180℃。
9. the metal charge body that the method as described in claim any one of 1-8 is prepared.
10. the application of metal charge body as claimed in claim 9, it is characterised in that the metal charge body is applied to injection and sintered
Technique；
Preferably, the application comprises the following steps：
(1) the metal charge body and polymer material mixing are granulated；
(2) step (1) is granulated to the particle injection moulding formed, green product is obtained；
(3) green product for obtaining step (2) carries out degreasing；
(4) product after step (3) degreasing is sintered, obtains finished product；
(5) optionally, the finished product obtained to step (4) carries out post-processing processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710343975.8A CN107159878A (en) | 2017-05-16 | 2017-05-16 | A kind of metal charge body and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710343975.8A CN107159878A (en) | 2017-05-16 | 2017-05-16 | A kind of metal charge body and its preparation method and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107159878A true CN107159878A (en) | 2017-09-15 |
Family
ID=59816455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710343975.8A Pending CN107159878A (en) | 2017-05-16 | 2017-05-16 | A kind of metal charge body and its preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107159878A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107790729A (en) * | 2017-11-23 | 2018-03-13 | 北京科技大学 | A kind of method that high-performance aluminium alloy is prepared using Powder Injection Molding Technology |
| CN108503355A (en) * | 2018-04-18 | 2018-09-07 | 昆山卡德姆新材料科技有限公司 | A kind of 3D printing materials, preparation method and use |
| CN110238388A (en) * | 2019-07-26 | 2019-09-17 | 昆山卡德姆新材料科技有限公司 | A kind of metal powder and its preparation method and application wrapped up by high molecular material |
| CN111168056A (en) * | 2020-01-17 | 2020-05-19 | 宁波柔创纳米科技有限公司 | Metal powder and method for reducing oxygen content of metal powder and improving oxidation resistance |
| CN112238223A (en) * | 2019-07-18 | 2021-01-19 | 上栗县科源冶金材料有限公司 | Anti-oxidation method for storing metal powder |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4478790A (en) * | 1981-05-22 | 1984-10-23 | Mtu Motoren-Und Turbinen-Union Munchen Gmbh | Method and apparatus for manufacturing molded articles of alloyed material |
| JPH0257607A (en) * | 1988-08-20 | 1990-02-27 | Kawasaki Steel Corp | Injection-molding powder and production of metallic sintered body |
| JPH06279806A (en) * | 1993-03-26 | 1994-10-04 | Olympus Optical Co Ltd | Production of ceramic or metallic power sintered compact |
| CN101279367A (en) * | 2008-05-28 | 2008-10-08 | 北京科技大学 | Injection forming method for preparing high Niobium containing Ti-Al alloy components |
| CN101594954A (en) * | 2006-08-07 | 2009-12-02 | 昆士兰大学 | Metal injection moulding method |
| CN104091667A (en) * | 2014-06-05 | 2014-10-08 | 浙江大学 | Injection molding preparation method for metal magnetic powder cores |
| CN104999082A (en) * | 2015-05-21 | 2015-10-28 | 淮海工学院 | Near-net forming preparation method for Cu-Al2O3 composite material nozzle |
| CN105108154A (en) * | 2015-09-21 | 2015-12-02 | 深圳艾利门特科技有限公司 | Method for preparing special-shaped complex part through powder injection molding technology |
| CN105481364A (en) * | 2015-12-15 | 2016-04-13 | 东莞信柏结构陶瓷有限公司 | Preparation method for ceramic watchcase |
| CN106637196A (en) * | 2016-12-25 | 2017-05-10 | 机械科学研究总院青岛分院 | Hydraulic rod material surface strengthening process |
-
2017
- 2017-05-16 CN CN201710343975.8A patent/CN107159878A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4478790A (en) * | 1981-05-22 | 1984-10-23 | Mtu Motoren-Und Turbinen-Union Munchen Gmbh | Method and apparatus for manufacturing molded articles of alloyed material |
| JPH0257607A (en) * | 1988-08-20 | 1990-02-27 | Kawasaki Steel Corp | Injection-molding powder and production of metallic sintered body |
| JPH06279806A (en) * | 1993-03-26 | 1994-10-04 | Olympus Optical Co Ltd | Production of ceramic or metallic power sintered compact |
| CN101594954A (en) * | 2006-08-07 | 2009-12-02 | 昆士兰大学 | Metal injection moulding method |
| CN101279367A (en) * | 2008-05-28 | 2008-10-08 | 北京科技大学 | Injection forming method for preparing high Niobium containing Ti-Al alloy components |
| CN104091667A (en) * | 2014-06-05 | 2014-10-08 | 浙江大学 | Injection molding preparation method for metal magnetic powder cores |
| CN104999082A (en) * | 2015-05-21 | 2015-10-28 | 淮海工学院 | Near-net forming preparation method for Cu-Al2O3 composite material nozzle |
| CN105108154A (en) * | 2015-09-21 | 2015-12-02 | 深圳艾利门特科技有限公司 | Method for preparing special-shaped complex part through powder injection molding technology |
| CN105481364A (en) * | 2015-12-15 | 2016-04-13 | 东莞信柏结构陶瓷有限公司 | Preparation method for ceramic watchcase |
| CN106637196A (en) * | 2016-12-25 | 2017-05-10 | 机械科学研究总院青岛分院 | Hydraulic rod material surface strengthening process |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107790729A (en) * | 2017-11-23 | 2018-03-13 | 北京科技大学 | A kind of method that high-performance aluminium alloy is prepared using Powder Injection Molding Technology |
| CN108503355A (en) * | 2018-04-18 | 2018-09-07 | 昆山卡德姆新材料科技有限公司 | A kind of 3D printing materials, preparation method and use |
| WO2019200733A1 (en) * | 2018-04-18 | 2019-10-24 | 昆山卡德姆新材料科技有限公司 | 3d printing material, preparation method therefor and use thereof |
| CN112238223A (en) * | 2019-07-18 | 2021-01-19 | 上栗县科源冶金材料有限公司 | Anti-oxidation method for storing metal powder |
| CN110238388A (en) * | 2019-07-26 | 2019-09-17 | 昆山卡德姆新材料科技有限公司 | A kind of metal powder and its preparation method and application wrapped up by high molecular material |
| WO2021018038A1 (en) * | 2019-07-26 | 2021-02-04 | 昆山卡德姆新材料科技有限公司 | Polymer material-coated metal powder, preparation method therefor and use thereof |
| CN110238388B (en) * | 2019-07-26 | 2021-07-27 | 昆山卡德姆新材料科技有限公司 | Metal powder wrapped by high polymer material and preparation method and application thereof |
| CN113681008A (en) * | 2019-07-26 | 2021-11-23 | 昆山卡德姆新材料科技有限公司 | Metal part |
| CN111168056A (en) * | 2020-01-17 | 2020-05-19 | 宁波柔创纳米科技有限公司 | Metal powder and method for reducing oxygen content of metal powder and improving oxidation resistance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107159878A (en) | A kind of metal charge body and its preparation method and application | |
| JP6568104B2 (en) | Production of substantially spherical metal powder | |
| US6562290B2 (en) | Process for the production of composite components by powder injection molding, and composite powders suitable for this purpose | |
| JP5956419B2 (en) | Method for producing molded product of aluminum alloy | |
| JPH01129902A (en) | Method for processing parts from granular material and feed raw material | |
| CN113681008B (en) | Metal part | |
| US6761852B2 (en) | Forming complex-shaped aluminum components | |
| TW201603060A (en) | Soft magnetic metal powder and soft magnetic metal powder core using the same | |
| RU2677399C2 (en) | Method of producing tantalum alloys | |
| WO1996022401A1 (en) | Copper-tungsten alloys and process for producing the same | |
| KR101604251B1 (en) | Metal powder havig good fluidity and method for producing the same | |
| JPH09143591A (en) | Production of tungsten copper alloy sintered body | |
| JP2019206758A (en) | Processes for producing tantalum alloys and niobium alloys | |
| JP5793635B2 (en) | Tungsten powder and capacitor anode body | |
| JPH0313503A (en) | Method for degreasing molding for powder metallurgy, binder and supercritical fluid | |
| JP2017036170A (en) | Production method of sintered body of boron carbide | |
| CN113070478A (en) | Tungsten-copper alloy feed, preparation method, tungsten-copper alloy workpiece and manufacturing method | |
| JP2005194566A (en) | Tungsten-copper composite powder, its production method, and method of producing sintered alloy using the same | |
| WO1994020242A1 (en) | Process for manufacturing powder injection molded parts | |
| JP4161301B2 (en) | Granulated powder and method for producing the same | |
| JP2014055344A (en) | Sintered titanium alloy and production method of the same | |
| JPH0525563A (en) | Production of sintered zn-mn alloy | |
| JPH0521971B2 (en) | ||
| JP2008189981A (en) | Method for manufacturing sintered compact, and sintered compact | |
| JPH108110A (en) | Production of tungsten-copper alloy sintered body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170915 |
|
| RJ01 | Rejection of invention patent application after publication |