CN108568511A - A kind of Metal screen cloth reinforced phase and its application in infiltration by squeeze casting casting - Google Patents
A kind of Metal screen cloth reinforced phase and its application in infiltration by squeeze casting casting Download PDFInfo
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- CN108568511A CN108568511A CN201810470846.XA CN201810470846A CN108568511A CN 108568511 A CN108568511 A CN 108568511A CN 201810470846 A CN201810470846 A CN 201810470846A CN 108568511 A CN108568511 A CN 108568511A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
- B22D23/04—Casting by dipping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
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Abstract
A kind of application the present invention provides Metal screen cloth reinforced phase and its in infiltration by squeeze casting casting, the Metal screen cloth reinforced phase is that the Metal screen cloth wound woven by metal wire material forms, the radius of the wire controls porosity with wire and the variation of the spacing of silk kernel of section, and Metal screen cloth reinforced phase density degree is controlled by porosity；By designing wire diameter and braiding spacing, realize that Metal screen cloth reinforced phase and basis material ratio are controllable.Metal screen cloth reinforced phase of the present invention is successfully applied to infiltration by squeeze casting casting, has enhancing phase volume fraction easily-controllable, microscopic structure has repeatability；The percent by volume of Metal screen cloth reinforced phase realizes the preparation of the metallic composite of high proportion Metal screen cloth reinforced phase up to 19.6~78.54%.Through experimental tests, with compared with the alloy of trade mark basis material, the comprehensive performance of metallic composite is greatly improved.Application field amount is widely applicable greatly, can create great economic benefit.
Description
Technical field
The present invention relates to the technology of preparing of metallic composite, refers in particular to a kind of Metal screen cloth reinforced phase and its squeezing
Application in infiltration casting.
Background technology
The preparation method of metal-base composites can be divided at present：Stirring casting method, in-situ reaction, squeeze casting method
With spray-up method etc..Wherein, the characteristics of stirring casting method it is composite material simple for process, that large volume can be produced, equipment
Less investment, production cost is low, is suitble to produce in enormous quantities, but the enhancing phase volume being added receives limitation, generally no greater than 20%, and
And be easy to air-breathing in whipping process and form stomata, also it be easy to cause agglomeration.Squeeze casting method is to solidify under high pressure
, and the defects of improve the wellability between melt and reinforcement, stomata can be eliminated, it is higher compound to prepare reinforcement point
Material, can be with one-pass molding, in order to improve performance and melt be avoided to generate turbulent flow, can extrusion casint (low pressure infiltration in two steps
And High Pressure Solidification), the part of preparation can further intensive treatment to improve its performance.Those skilled in the art just put forth effort to study
A kind of method of mechanical strength and the metallic composite of the superior high proportion metal wire material reinforced phase of comprehensive performance.Chinese patent
It is application No. is a kind of 201410440413.1 preparation methods of broken-staple metal fibre metal polyporous material, long metal fiber silk material is short
It is cut to the staple fiber of certain length, then in mold cavity after compacting, then the stainless steel metal staple fiber prepared is placed in
Vacuum environment is sintered, and obtains light porous bulk metal material.Since long metal fiber is cut to broken-staple metal fibre, metal is short
The mechanical property of fibre preforms base is significantly weakened, and the comprehensive mechanical property of the composite material prepared is relatively low.Chinese patent
It is first application No. is a kind of 201610508493.9 methods that Metal screen cloth wound sintering pressure fabricates structural metallic materials
First, by metal wire knitted at Metal screen cloth strip, then Metal screen cloth strip close wound is formed in the close cladding of cladding material
The wound green body of layer material coated layer by layer；Then it is sintered wound green body；Reduced in wound blank of material by plastic processing again
Gap, the structural metallic materials containing hole needed for obtaining can be manufactured after the porosity of requirement by being finally reached, then pass through machine
The method of tool processing is manufactured into mechanical structure parts.Purpose is that metal wire material wound is prepared the more micropore gap materials of metal, is not
Metal alloy composite material is prepared, since plastic processing reduces the gap in wound blank of material again after sintering, to molten metal
Body is difficult to be infiltrated into micropore, can not be applied to prepare metallic composite.
Invention content
It is an object of the invention to overcome the deficiencies in the prior art and disadvantage, provide a kind of Metal screen cloth reinforced phase and its
Metal screen cloth wound is applied into reinforced phase in infiltration by squeeze casting casting, by designing gold by the application in infiltration by squeeze casting casting
Belong to silk diameter and weaves the preparation that spacing realizes Metal screen cloth reinforced phase and the controllable metallic composite of basis material ratio.
To achieve the above object, technical solutions according to the invention are embodied as：
A kind of Metal screen cloth reinforced phase, is woven by metal wire material, it is characterised in that：The Metal screen cloth reinforced phase is
Cylindrical shape or bulk shape made of Metal screen cloth wound by metal wire material braiding；By metal wire material radius r and wire
Variation with silk kernel of section spacing d controls porosity, and Metal screen cloth reinforced phase density degree is controlled by porosity；The hole
Rate is ((2d-r π)/2d) × 100%, and the percent by volume of Metal screen cloth reinforced phase is that (r pi/2 d) × 100%, wherein π are circle
Frequency, π=3.1415926；The metal wire material fusing point is higher than the fusing point of liquid metal.
Preferably, the metal wire material selects stainless steel silk material or copper alloy silk material, the metal wire material diameter to select model
Enclose is 10~500 microns.
A kind of application of Metal screen cloth reinforced phase in infiltration by squeeze casting casting, it is characterised in that：The applying step and its
Process conditions are as follows：
(1) percent by volume of according to target metallic composite setting Metal screen cloth reinforced phase, by Metal screen cloth reinforced phase
Percent by volume be (formula of r pi/2 d) × 100% select needed for Metal screen cloth；Metal screen cloth is cut into required
Width, the width are the 2/3~1/4 of molding die cavity height, and shape is consistent with mold cavity；
(2) reinforced phase made of Metal screen cloth wound is placed in infiltration by squeeze casting casting and forming mold die cavity, week is outward
Prolong and be close to wall of die cavity face, and end face is close to mold cavity bottom surface；
(3) reinforced phase shape is kept, and preheats reinforced phase；
(4) infiltration by squeeze casting is cast, and liquid metal is poured into mould cavity, when liquid metal is along reinforced phase layer and layer
Between gap be infiltrated into the hole of Metal screen cloth reinforced phase, and full of Metal screen cloth reinforced phase all holes, wait for
After being impregnated with the liquid metal cooled and solidified of entrance, it is reinforced phase, infiltration by squeeze casting liquid metal solidification to obtain the Metal screen cloth
For matrix phase, the metal alloy composite material of the two interpenetrating；The metal alloy composite material, as 2r=d, Metal screen cloth
The theoretical maximum percent by volume of reinforced phase is (π/4) × 100%, the metallic composite of microscopic structure rule variation.
The percent by volume of the Metal screen cloth reinforced phase is 19.6%~78.54%.
Preferably, the infiltration by squeeze casting further includes infiltration by squeeze casting under vacuum condition, mold cavity vacuum degree be 10Pa~
1000Pa。
Preferably, reinforced phase made of the Metal screen cloth wound, which be surface-treated, forms skin covering of the surface, at the surface
Reason includes nitriding, carburizing, zinc-plated or chromium plating.
Preferably, the liquid metal is zinc alloy melt or molten aluminium alloy.
Preferably, it selects stainless steel for screen cloth reinforced phase and zinc alloy melt compatibility, is obtained not using infiltration by squeeze casting casting
The zinc alloy composites that the steel mesh that becomes rusty enhances.
Preferably, it selects stainless steel for screen cloth reinforced phase and molten aluminium alloy compatibility, is obtained not using infiltration by squeeze casting casting
The Al alloy composite that the steel mesh that becomes rusty enhances.
Preferably, it selects copper alloy for screen cloth reinforced phase and zinc alloy melt compatibility, is cast using infiltration by squeeze casting and obtain copper
The zinc alloy composites of Metal screen cloth enhancing.
The principle of the method for the present invention is：The present invention realizes Metal screen cloth enhancing by designing wire diameter and braiding spacing
The preparation of phase and the controllable metallic composite of basis material ratio.The thickness of metal knitted cloth is twice of metal string diameter,
Wire presses horizontal and vertical weaving, when the radius of wire is r and the spacing of wire and silk kernel of section is d, gold
Belonging to silk, shared percent by volume can be by ((r × r × π)/(2 × r × d)) × 100% approximate calculation in metal knitted cloth, letter
After change for (r pi/2 d) × 100%, wherein π are pi, the porosity of reinforced phase made of Metal screen cloth wound be 1- (r π/
2d) × 100%, as ((2d-r π)/2d) × 100%.The close wound of Metal screen cloth at reinforced phase after, wire is in metal
Shared percent by volume does not change in woven cloth, and the percent by volume of Metal screen cloth reinforced phase is (r pi/2 d) × 100%, hole
Gap rate is ((2d-r π)/2d) × 100%.
It can be combined together reinforced phase and matrix are intact using infiltration by squeeze casting casting, since reinforced phase is to pass through volume
Knitmesh cloth contacts with each other the reticular structure to be formed, then has higher interface by the composite material formed between reinforced phase and matrix
Intensity, tensile strength and wear-resisting property.The compound of different materials can be effectively combined simultaneously so that composite material has good
Comprehensive performance, the volume fraction of reinforced phase can be up to 78%, and the composite material after preparation can further be processed place
Reason.Furthermore the fiber in mesh structural porous body is not in that the reunion of discontinuous reinforcements is unequal existing in the distribution of composite material
As experimental repeatability is preferable.
Compared with prior art, the present invention having the following advantages that and advantageous effect：
1, the present invention realizes Metal screen cloth reinforced phase and basis material ratio by designing wire diameter and braiding spacing
The preparation of controllable metallic composite, Metal screen cloth reinforced phase are by the radius r and wire of wire and silk section
The variation of the spacing d of the heart controls porosity, controls Metal screen cloth reinforced phase density degree by porosity, porosity and string diameter have one
Set pattern rule can be followed, and material fiber tissue is more uniform, and volume fraction is easy to control, and microscopic structure has repeatability.
2, Metal screen cloth wound is applied into reinforced phase in infiltration by squeeze casting casting by the present invention, and reinforced phase accounting may be up to
78.54%, the metal alloy composite material of the high proportion Metal screen cloth reinforced phase of a variety of new types, new type material can be prepared
Material includes：The kirsite of stainless steel metal screen cloth enhancing, the aluminium alloy of stainless steel metal screen cloth enhancing, copper metal screen cloth enhance
Kirsite, through experimental tests, with basis material compared with the kirsite of the trade mark, the tensile strength of material improves 40% or more,
Wear resistance at elevated temperature when compressive strength improves 20% or more, 150 degree Celsius improves 160% or more.
3, the present invention can be directed to the requirement of work metal alloy composite materials, design and increase made of Metal screen cloth wound
The making of strong phase；When suitable reinforced phase is applied to infiltration by squeeze casting casting technique, liquid metal along reinforced phase layer and layer it
Between gap be quickly infiltrated into the hole of reinforced phase, easily fill up hole all in reinforced phase, overcome prior art liquid
The speed that state metal infiltration enters unordered porous material reinforced phase hole is slow, after liquid metal temperature reduces, it is more difficult to fill out completely
Fill the defect of hole all in reinforced phase.
4, silk material fiber described in Metal screen cloth reinforced phase of the invention is not cut off, continuous tissue, and performance is more general non-
Continuous phase enhancing is excellent.
5, application process processing step of the present invention is simple, reliable and stable, easy to operate, implements to be easy, is easy to produce in batches,
Production cost is relatively low；Application field has a large capacity and a wide range, and market application prospect is good, can create great economic benefit.
Specific implementation mode
With reference to multiple specific embodiments, the invention will be further described.
Embodiment 1
The present embodiment is application of the stainless steel mesh cloth reinforced phase in infiltration by squeeze casting casting, prepares stainless steel mesh cloth enhancing
Zinc alloy composites.
Metal screen cloth reinforced phase of the present invention is reinforced phase made of the Metal screen cloth wound woven by metal wire material, system
Steps are as follows for standby stainless steel metal screen cloth reinforced phase：
Step 1：Following parameters, institute's melting are designed according to the requirement of the zinc alloy composites of stainless steel metal screen cloth enhancing
Molten metal be ZA8 zinc alloy melts, using 1Cr18Ni9 stainless steel silk materials, 1Cr18Ni9 stainless steels circular section string diameter is 160 μ
M, radius r are 80 μm；
The percent by volume of stainless steel metal screen cloth reinforced phase prepared by goal-setting is 60%, liquid metal kirsite
The percent by volume for being solidified as matrix phase is 40%.Formula (r pi/2s d) is calculated according to the percent by volume of Metal screen cloth reinforced phase
× 100%, it is 80 μm by r, it is that d should be 209.4 μm to calculate and obtain the spacing of wire and silk kernel of section.
Step 2：By circular section string diameter it is 160 μm by braider, radius is 80 μm of 1Cr18Ni9 stainless steel wires, is compiled
The spacing d of wire and silk kernel of section is made into as 209.4 μm of stainless steel mesh cloth.
Step 3：Stainless steel mesh cloth is cut into width 100mm, then one end of stainless steel mesh cloth is fixed on round bar mandrel
On, motor-driven mechanism rotates round bar mandrel, by the close wound of stainless steel strap on round bar mandrel, and keeps end part aligning,
Form the stainless steel mesh cloth round bar shape wound green body coated layer by layer that cladding material closely coats inner layer material；Appearance and size reaches
It is required that size after, cut stainless steel mesh cloth；It extracts mandrel out again, continues to roll tightly wound green body, until wound green body is justified because of extraction
The endoporus that bar mandrel is formed disappears, and keeps wound green body not loose, obtains outer layer tight internal layer after close wound, inside contains
The percent by volume of the cylindrical reinforced phase of 200 millimeters of pore diameter, stainless steel mesh cloth reinforced phase is 60%, reinforced phase hole
Rate is 40%.
Application of the above-mentioned stainless steel mesh cloth reinforced phase in infiltration by squeeze casting casting, applying step and its process conditions are as follows：
Step 1：Determine that the shape of stainless steel mesh cloth reinforced phase, the present embodiment mould cavity height are according to mould cavity
The shape of 300mm, diameter of bore 200mm, stainless steel mesh cloth reinforced phase are cylinder.It is whole that production method is to maintain reinforced phase both ends
Together, the height of reinforced phase, which is equal to, cuts out the width 100mm of screen cloth, and the height that reinforced phase after reinforced phase is made in Metal screen cloth is equal to gold
The width for belonging to screen cloth, metal liquid can also be poured into order to ensure reinforced phase being placed in after mold cavity into mold cavity, gold
The width for belonging to screen cloth is the 2/3~1/4 of molding die cavity height；And the outer diameter of reinforced phase is made to be 200mm, it is cast with infiltration by squeeze casting
It is identical to make molding die diameter of bore 200mm.
Step 2：Above-mentioned Metal screen cloth reinforced phase is placed in the lower part in infiltration by squeeze casting mould cavity, makes the lower end of reinforced phase
By patch cavity body of mould bottom surface, the perimeter material of Metal screen cloth reinforced phase is by pasting cavity body of mould endoporus wall surface, Metal screen cloth reinforced phase
Clearance plane between layers keeps concentric with mold endoporus wall surface.
Step 3：Metal screen cloth reinforced phase in above-mentioned mold is preheated to 300 DEG C together with mold, and after keeping the temperature half an hour
Pour into a mould kirsite.
Step 4：Infiltration by squeeze casting is cast, and the molten metal of institute's melting is ZA8 zinc alloy melts, and smelting temperature is 650 DEG C, then
It is removed the gred with ZnCl2 refining agents, melt is made to keep the temperature to 650 DEG C after slagging-off；And applying the pressure of 90MPa rapidly, extruding keeps liquid golden
ZA8 zinc alloy melts are infiltrated into along the gap of reinforced phase between layers in the hole of reinforced phase, and fill full reinforced phase
Interior all holes；
1Cr18Ni9 stainless steel wire fusing points are higher than the fusing point of liquid zinc alloy, and liquid zinc alloy is infiltrated into 1Cr18Ni9 not
Enhancing phase material will not melt when steel mesh reinforced phase of becoming rusty.And pressurize 2min, it is infiltrated into Metal screen cloth reinforced phase hole
After liquid metal cooled and solidified, demoulding, you can obtain the stainless steel mesh cloth increasing that required stainless steel is compound with kirsite, that is, obtains
Strong phase volume percentage is 60%, the liquid metal kirsite being infiltrated into reinforced phase hole is solidified as matrix phase volume percentage
Than being 40%；Obtain the reinforced phase, matrix phase, the zinc alloy composites of the metal of the two interpenetrating；Through experimental tests, with base
Body material compared with the kirsite of the trade mark, the tensile strength of material improve 30% or more, compressive strength improve 20% or more,
Wear resistance at elevated temperature at 150 degrees Celsius improves 160% or more.
Embodiment 2
The present embodiment is application of the stainless steel mesh cloth reinforced phase in infiltration by squeeze casting casting, prepares stainless steel mesh cloth enhancing
Al alloy composite.
Metal screen cloth reinforced phase preparation and its infiltration by squeeze casting casting in applying step substantially with embodiment 1, with reality
The string diameter for applying the stainless steel wire in the present embodiment unlike example 1 is 80 μm, and radius is 40 μm, prepares stainless steel mesh cloth enhancing
It is mutually identical with the percent by volume of alloy matrix aluminum material, that is, reinforced phase and basis material percent by volume are all 50%
Stainless steel mesh cloth enhances aluminum alloy materials.Examination (r pi/2s d) × 100%, r are calculated according to the percent by volume of Metal screen cloth reinforced phase
It it is 40 μm, the percent by volume that prepare stainless steel metal screen cloth reinforced phase is about 50%, calculates and obtains wire and silk section
The spacing at center is that d should be 125.66 μm.
Increase the step of being vacuumized to mold cavity, vacuum degree as different from Example 1 during infiltration by squeeze casting
It can be selected within the scope of 10Pa-1000Pa.Infiltration by squeeze casting is carried out under vacuum conditions, the air content in material is reduced, after solidification
It is combined more secured with enhancing phase material, makes the performance higher of material.
Embodiment 3
The present embodiment uses the aluminium bronze silk with wear resistant friction reducing effect to be woven into Metal screen cloth, is the enhancing of aluminium bronze screen cloth
The mutually application in infiltration by squeeze casting casting, prepares the zinc alloy composites of aluminium bronze screen cloth enhancing.Metal screen cloth reinforced phase
It prepares and its applying step in infiltration by squeeze casting casting is substantially with embodiment 1, as different from Example 1 in the present embodiment
The string diameter of aluminium bronze silk is 100 μm, and radius is 50 μm, and the percent by volume for preparing aluminium bronze Metal screen cloth reinforced phase is about
60%, the aluminium bronze screen cloth that the percent by volume that liquid metal kirsite is solidified as matrix phase is about 40% enhances kirsite material
Material.Calculating examination according to the percent by volume of Metal screen cloth reinforced phase, (r pi/2s d) × 100%, r are 50 μm, to prepare aluminium bronze gold
The percent by volume for belonging to screen cloth reinforced phase is about 60%, and it is that d should be 130.9 to calculate and obtain the spacing of wire and silk kernel of section
μm。
Embodiment 4
Application of the stainless steel mesh cloth reinforced phase in infiltration by squeeze casting casting, prepares the stainless steel kirsite of high proportion reinforced phase
Composite material.Its step is substantially with embodiment 1, and the string diameter of the stainless steel wire in the present embodiment is 10 μ as different from Example 1
M closer can weave since string diameter is tiny between silk and silk, then when the close wound of metal wire knitted screen cloth is at reinforced phase, make
It is closely contacted between reinforced phase silk material, under the conditions of this, (twice of radius r) of the diameter of wire is equal to wire and silk section
The spacing d at center, i.e. 2r=d, reinforced phase Metal screen cloth reinforced phase made of Metal screen cloth wound reach theoretical maximum volume hundred
Point than be (π/4) × 100% (wherein π=3.1415926), i.e., 78.54%, reinforced phase porosity be ((4- π)/4) ×
100%, i.e., 21.46% obtain the stainless steel zinc alloy composites of high proportion reinforced phase.The stainless steel mesh cloth enhancing obtained
Phase volume percentage is 78.54%, the liquid metal kirsite being infiltrated into reinforced phase hole is solidified as matrix phase volume hundred
Divide than being 21.46%.
Embodiment 5
Metal screen cloth reinforced phase preparation and its infiltration by squeeze casting casting in applying step substantially with embodiment 1, with reality
Apply the step of being surface-treated embodiment adds reinforced phase unlike example 1, stainless steel mesh cloth reinforced phase adds being put into mold
Before heat, conventional surface treatment is carried out to it, so that silk material surface is formed skin covering of the surface, the surface treatment method, which can be selected, to be oozed
One kind in nitrogen, carburizing, zinc-plated or chromium plating can effectively improve the bond strength of enhancing phase material and basis material interface.
Embodiment 6
Metal screen cloth reinforced phase preparation and its infiltration by squeeze casting casting in applying step substantially with embodiment 1, with reality
It is block, production method to apply the present embodiment stainless steel metal screen cloth reinforced phase unlike example 1：Stainless steel mesh cloth is cut into
Width 100mm, then one end of stainless steel mesh cloth is fixed on lath bar mandrel, motor-driven mechanism swivel plate bar mandrel,
By the close wound of stainless steel strap on lath bar mandrel, and end part aligning is kept, forms cladding material and closely coat internal layer material
The stainless steel mesh cloth block shape wound green body of material coated layer by layer；After appearance and size reaches the size of requirement, stainless (steel) wire is cut
Cloth；It extracts lath mandrel out again, compresses wound green body, until wound green body is prepared because the endoporus that extraction lath mandrel is formed disappears
Obtain block reinforced phase.Again using the circular hole mould instead of embodiment 1 when the mold of square section, infiltration by squeeze casting casting prepares metal mesh
The composite alloy material of cloth enhancing.
Embodiment 7
Metal screen cloth reinforced phase preparation and its infiltration by squeeze casting casting in applying step substantially with embodiment 1, with reality
The string diameter for applying the stainless steel wire in the present embodiment unlike example 1 is 500 μm, and radius is 250 μm, is used most for the present invention
The spacing d of big string diameter, wire and silk kernel of section is 2000 μm, then reinforced phase Metal screen cloth made of Metal screen cloth wound increases
The strong percent by volume mutually reached is
19.6%, reinforced phase porosity is 80.4%, and reinforced phase percent by volume is prepared after infiltration by squeeze casting kirsite
The compound alloy material of new type stainless steel. corrosion resistance kirsite for being 80.4% for 19.6%, matrix kirsite percent by volume.
Claims (10)
1. a kind of Metal screen cloth reinforced phase, is woven by metal wire material, it is characterised in that：The Metal screen cloth reinforced phase be by
Cylindrical shape or bulk shape made of the Metal screen cloth wound of metal wire material braiding；By metal wire material radius r and wire with
The variation of silk kernel of section spacing d controls porosity, and Metal screen cloth reinforced phase density degree is controlled by porosity；The porosity
Percent by volume for ((2d-r π)/2d) × 100%, Metal screen cloth reinforced phase is that (r pi/2 d) × 100%, wherein π are circumference
Rate, π=3.1415926；The metal wire material fusing point is higher than the fusing point of liquid metal.
2. a kind of Metal screen cloth reinforced phase according to claim 1, it is characterised in that：The metal wire material selects stainless steel
Silk material or copper alloy silk material, the metal wire material diameter Application Range are 10~500 microns.
3. a kind of application of Metal screen cloth reinforced phase in infiltration by squeeze casting casting, it is characterised in that：The applying step and its work
Skill condition is as follows：
(1) percent by volume of according to target metallic composite setting Metal screen cloth reinforced phase, by the body of Metal screen cloth reinforced phase
Product percentage is that (formula of r pi/2 d) × 100% selects required Metal screen cloth；Metal screen cloth is cut into required width
Degree, the width are the 2/3~1/4 of molding die cavity height, and shape is consistent with mold cavity；
(2) reinforced phase made of Metal screen cloth wound is placed in infiltration by squeeze casting casting and forming mold die cavity, circumferential extension is tight
Wall of die cavity face is pasted, and end face is close to mold cavity bottom surface；
(3) reinforced phase shape is kept, and preheats reinforced phase；
(4) infiltration by squeeze casting cast, liquid metal is poured into mould cavity, when liquid metal along reinforced phase between layers
Gap be infiltrated into the hole of Metal screen cloth reinforced phase, and full of Metal screen cloth reinforced phase all holes, wait being immersed
After the liquid metal cooled and solidified infiltered, obtain that the Metal screen cloth is reinforced phase, infiltration by squeeze casting liquid metal solidification is base
Body phase, the metal alloy composite material of the two interpenetrating；The metal alloy composite material, as 2r=d, Metal screen cloth enhancing
The theoretical maximum percent by volume of phase is (π/4) × 100%, the metallic composite of microscopic structure rule variation.
4. a kind of application of the Metal screen cloth reinforced phase according to claim 3 in infiltration by squeeze casting casting, it is characterised in that：
The percent by volume of the Metal screen cloth reinforced phase is 19.6%~78.54%.
5. a kind of application of the Metal screen cloth reinforced phase according to claim 3 in infiltration by squeeze casting casting, it is characterised in that：
Reinforced phase made of the Metal screen cloth wound carries out surface treatment and forms skin covering of the surface before preheating, and the surface treatment includes
Nitriding, carburizing, zinc-plated or chromium plating.
6. a kind of application of the Metal screen cloth reinforced phase according to claim 3 in infiltration by squeeze casting casting, it is characterised in that：
The infiltration by squeeze casting further includes infiltration by squeeze casting under vacuum condition, and mold cavity vacuum degree is 10Pa~1000Pa.
7. application of a kind of Metal screen cloth reinforced phase in infiltration by squeeze casting casting according to claim 3 or 4 or 5 or 6,
It is characterized in that：The liquid metal is zinc alloy melt or molten aluminium alloy.
8. a kind of application of the Metal screen cloth reinforced phase according to claim 7 in infiltration by squeeze casting casting, it is characterised in that：
It selects stainless steel for screen cloth reinforced phase and zinc alloy melt compatibility, the zinc for obtaining stainless steel mesh cloth enhancing is cast using infiltration by squeeze casting
Alloy composite materials.
9. a kind of application of the Metal screen cloth reinforced phase according to claim 7 in infiltration by squeeze casting casting, it is characterised in that：
It selects stainless steel for screen cloth reinforced phase and molten aluminium alloy compatibility, the aluminium for obtaining stainless steel mesh cloth enhancing is cast using infiltration by squeeze casting
Alloy composite materials.
10. a kind of application of the Metal screen cloth reinforced phase according to claim 7 in infiltration by squeeze casting casting, feature exist
In：It selects copper alloy for screen cloth reinforced phase and zinc alloy melt compatibility, is cast using infiltration by squeeze casting and obtain the enhancing of copper metal screen cloth
Zinc alloy composites.
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| CN201810470846.XA CN108568511B (en) | 2018-05-16 | 2018-05-16 | Metal mesh cloth reinforcing phase and application thereof in extrusion infiltration casting |
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| CN201810470846.XA CN108568511B (en) | 2018-05-16 | 2018-05-16 | Metal mesh cloth reinforcing phase and application thereof in extrusion infiltration casting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111519217A (en) * | 2020-05-07 | 2020-08-11 | 吉林大学 | Slush molding die and reinforcement treatment method and application thereof |
| CN113652078A (en) * | 2021-08-23 | 2021-11-16 | 华南理工大学 | Composite material for vibration reduction and preparation method thereof |
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| CN101825218A (en) * | 2010-04-27 | 2010-09-08 | 济南大学 | Double metal network-interpenetrated multiphase section and production method thereof |
| CN104096267A (en) * | 2014-07-09 | 2014-10-15 | 上海交通大学 | Medical gradient composite material |
| CN106077665A (en) * | 2016-06-29 | 2016-11-09 | 华南理工大学 | A kind of method of Metal screen cloth wound sintering pressure processing and manufacturing structural metallic materials |
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| CN111519217A (en) * | 2020-05-07 | 2020-08-11 | 吉林大学 | Slush molding die and reinforcement treatment method and application thereof |
| CN113652078A (en) * | 2021-08-23 | 2021-11-16 | 华南理工大学 | Composite material for vibration reduction and preparation method thereof |
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