CN105779843B - A kind of alloy complex and its manufacture method and application - Google Patents
A kind of alloy complex and its manufacture method and application Download PDFInfo
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- CN105779843B CN105779843B CN201610139740.2A CN201610139740A CN105779843B CN 105779843 B CN105779843 B CN 105779843B CN 201610139740 A CN201610139740 A CN 201610139740A CN 105779843 B CN105779843 B CN 105779843B
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- 239000000956 alloy Substances 0.000 title claims abstract description 102
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims description 29
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000010410 layer Substances 0.000 claims abstract description 64
- 239000008187 granular material Substances 0.000 claims abstract description 34
- 239000002245 particle Substances 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 29
- 239000012790 adhesive layer Substances 0.000 claims abstract description 21
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 16
- 239000010941 cobalt Substances 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 238000007493 shaping process Methods 0.000 claims description 13
- 229920001971 elastomer Polymers 0.000 claims description 12
- 239000005060 rubber Substances 0.000 claims description 12
- 238000005476 soldering Methods 0.000 claims description 9
- 210000004243 sweat Anatomy 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 238000005245 sintering Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000005219 brazing Methods 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 14
- 235000013339 cereals Nutrition 0.000 description 26
- 230000000052 comparative effect Effects 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 229910000617 Mangalloy Inorganic materials 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- -1 can be 3.5-6.5 μm Chemical compound 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/005—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides comprising a particular metallic binder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/536—Hardness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
Abstract
The present invention relates to a kind of field of alloy material, in particular it relates to a kind of alloy complex, and the preparation method and application of the alloy complex.The alloy complex includes steel plate layer, metal adhesive layer and nano hard alloy material layer, the steel plate layer is combined by metal adhesive layer with the nano hard alloy material layer, the nano hard alloy material layer contains coarse granule tungsten carbide, nanometer particle tungsten carbide and cobalt, on the basis of the gross weight of the nano hard alloy material layer, the content of the coarse granule tungsten carbide is 40 65 weight %, the content of the nanometer particle tungsten carbide is 20 45 weight %, and the content of the cobalt is 5 40 weight %.Mechanical strength, hardness and the wearability of the alloy complex of the present invention are very excellent, when the grilled teeth chain for railway permanent ways maintaining cleaning car, can significantly increase the hardness, mechanical strength and service life of grilled teeth head.
Description
Technical field
The present invention relates to a kind of field of alloy material, in particular it relates to a kind of alloy complex, and the alloy complex
Preparation method and application.
Background technology
It is the main portion used during rail track cleaning that the automobile-used GYKJ-RM80 types of railway permanent ways maintaining cleaning, which take off toothed chain,
Part and easily worn part.Present domestic railway permanent ways maintaining cleaning is automobile-used to take off toothed chain generally using inexpensive ZG45 mother metal
Forge finished product (mother metal is without any wear-resisting and enhancing toughness alloying element).Its shortcoming be not wear-resisting, easy fracture, its take off toothed chain
Service life it is shorter.In face of the automobile-used grilled teeth chain service life of domestic railway permanent ways maintaining cleaning is short, cost is high, efficiency is low, work
The present situations such as people's labor intensity is big, urgent need develop a kind of anti abrasive Cemented Carbide.
The content of the invention
The purpose of the present invention is to overcome the above-mentioned deficiency of technology, there is provided a kind of alloy complex and the alloy complex
Preparation method and application.The hardness of the alloy complex of the present invention is high, wear-resistant, service life length, is particularly suited for use in railway
Maintenance of way cleaning car is taken off on toothed chain.
The invention provides a kind of alloy complex, wherein, the alloy complex include steel plate layer, metal adhesive layer and
Nano hard alloy material layer, the steel plate layer are combined by metal adhesive layer with the nano hard alloy material layer,
The nano hard alloy material layer contains coarse granule tungsten carbide, nanometer particle tungsten carbide and cobalt, with the nano hard alloy
On the basis of the gross weight of material layer, the content of the coarse granule tungsten carbide is 40-65 weight %, the nanometer particle tungsten carbide
Content is 20-45 weight %, and the content of the cobalt is 5-40 weight %.
Present invention also offers a kind of method for manufacturing above-mentioned alloy complex, wherein, this method includes：By steel plate layer,
Metal adhesive layer and nano hard alloy material layer overlap compacting and obtain squeeze board successively, then carry out heat to the squeeze board
Fusion welding, to cause the metal adhesive layer to melt so that the steel plate layer and the nano hard alloy material layer combine
Together.
Invention additionally provides the alloy complex of the present invention answering on toothed chain is taken off in railway permanent ways maintaining cleaning car
With.
, can be with it was found by the inventors of the present invention that the top layer by the way that specific nano hard alloy material to be bonded in steel plate
The very excellent alloy complex of mechanical strength, hardness and wearability is obtained, when taking off for railway permanent ways maintaining cleaning car
Toothed chain, the hardness, mechanical strength and service life of grilled teeth head can be significantly increased.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Embodiment
The embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The invention provides a kind of alloy complex, wherein, the alloy complex include steel plate layer, metal adhesive layer and
Nano hard alloy material layer, the steel plate layer are combined by metal adhesive layer with the nano hard alloy material layer,
The nano hard alloy material layer contains coarse granule tungsten carbide, nanometer particle tungsten carbide and cobalt, with the nano hard alloy
On the basis of the gross weight of material layer, the content of the coarse granule tungsten carbide is 40-65 weight %, the nanometer particle tungsten carbide
Content is 20-45 weight %, and the content of the cobalt is 5-40 weight %.
In order to further improve the wearability and toughness of the nano hard alloy material layer, under preferable case,
On the basis of the gross weight of the nano hard alloy material layer, the content of the coarse granule tungsten carbide is 50-60 weight %, institute
The content for stating nanometer particle tungsten carbide is 30-40 weight %, and the content of the cobalt is 10-15 weight %.
In the present invention, the grain size of the coarse granule tungsten carbide and the grain size of nanometer particle tungsten carbide are to the nanometer
The influence of the properties of Hardmetal materials is more notable, in order to further improve the densification of the nano hard alloy tissue
Property and uniformity, so as to further improve nano hard alloy material layer wearability and toughness, of the invention is described
The grain size of coarse granule tungsten carbide can be 1.8-5.5 μm, preferably 2.5-3.5 μm；The crystal grain of the nanometer particle tungsten carbide
Degree can be 0.1-0.4 μm, preferably 0.2-0.3 μm.
In the present invention, the model of the steel used in the steel plate and wherein the content of each element does not limit clearly,
In situations where it is preferred, on the basis of the gross weight of the steel plate layer, C content is 1-1.4 weight % in the steel plate layer, Mn's
Content is that 16-19 weight %, Cr content are that 2-3 weight %, Mo content are 0.2-0.5 weight %, the Si weight of content≤0.5
Measure %, P content≤0.07 weight %, Fe content are 75.53-80.8 weight %；It is highly preferred that with the total of the steel plate layer
On the basis of weight, C content is that the content that 1.2-1.3 weight %, Mn content are 17-18 weight %, Cr is in the steel plate layer
The weight of the content that 2.4-2.6 weight %, Mo content are 0.3-0.4 weight %, Si content≤0.3 weight %, P≤0.05
% is measured, Fe content is 77.35-79.1 weight %.
In the present invention, it is preferred to the type of the steel used in steel plate layer used is ultra-high manganese steel, for example, model
ZGMn18 ultra-high manganese steel.
In the present invention, the thickness of the nano hard alloy material layer can be 1-5mm, preferably 2-4mm, the thickness
Nano hard alloy material layer go for the steel plate layers of various thickness, the thickness of the steel plate layer can be according to actual need
It was determined that for example can be 0.5-5cm.
In the present invention, there is no particular limitation for the species of the metal adhesive in the metal adhesive layer, Ke Yiwei
The relatively low metal adhesive that can melt metal being bonded together at high temperature of various fusing points, for example, copper.It is described
Metal adhesive can be used in the form of sheet metal, can also be used in the form of metal dust.In the present invention, such as
The copper foil that thickness is 0.3-0.6mm can be used.
In the present invention, the nano hard alloy material layer is by the way that nano hard alloy material is sintered to obtain
Arrive, wherein, the nano hard alloy material contains coarse granule tungsten carbide, nanometer particle tungsten carbide and cobalt powder.It is described by nanometer
There is no particular limitation for the process that Hardmetal materials are sintered, such as may comprise steps of：
(1) coarse granule tungsten carbide, nanometer particle tungsten carbide, cobalt powder and forming agent rubber are mixed, then carries out machine
Tool extrusion forming is handled, the blank being molded；
(2) under vacuum conditions, the blank by the shaping is sintered；
According to the present invention, in step (2), the condition of the sintering processes is not particularly limited, under preferable case, institute
Stating the condition of sintering processes includes：Temperature is 1400-1500 DEG C, preferably 1430-1440 DEG C；Vacuum is 300-600Pa, excellent
Elect 350-650Pa, more preferably 350-450Pa as；Time is 8-11 hours, preferably 9-10 hours.
In the present invention, the cobalt powder can in sintering fusing so as to by coarse granule tungsten carbide and nanometer particle tungsten carbide
Molding bonded, therefore there is no particular limitation for the grain size of the cobalt powder, such as can be 3.5-6.5 μm, preferably 4-5 μm.
In the present invention, the binder rubber is used for coarse granule tungsten carbide, nanometer particle tungsten carbide and the cobalt powder
Bonding makes it to be molded during mechanical pressurization, relative to the coarse granule tungsten carbide of 100 parts by weight, the binder
The content of rubber can be 15-37.5 parts by weight, preferably 20-32 parts by weight.The binder rubber can be that this area is normal
Advise use be used to be formed the binder rubber of nano hard alloy, under preferable case, the binder rubber is selected from fourth sodium rubber
Glue, butadiene-styrene rubber, butadiene rubber, SBS thermoplastic elastomer (TPE) (SBS) rubber and
At least one of SIS thermoplastic elastomer (TPE) (SIS) rubber.
In the present invention, the preparation method of the Nanoalloy material layer is to carry relative to the main improvement of prior art
Coarse granule tungsten carbide, nanometer particle tungsten carbide and the cobalt of the above-mentioned content of the present invention are supplied, it is preferable that additionally provide with above-mentioned
The coarse granule tungsten carbide and nanometer particle tungsten carbide of grain size, therefore, the concrete technology of the nano hard alloy preparation method
Condition and operating procedure can be carried out according to prior art.For example, a preferred embodiment of the invention, specifically,
The preparation method of the hard nanometer alloy material layer includes：By the coarse granule carbon that the grain size of 100 parts by weight is 1.8-5.5 μm
Changing tungsten, the nanometer particle tungsten carbide that the grain size of 46-87.5 parts by weight is 0.1-0.4 μm, the grain size of 8.5-25 parts by weight is
3.5-6.5 μm of cobalt powder and the forming agent rubber of 15-37.5 parts by weight are mixed, and are then carried out at mechanical pressurization shaping
Reason, obtains shaping blank；In temperature it is 1400- by the blank of the shaping in the case where vacuum is 350-600Pa vacuum environment
8-11 hours are sintered under the conditions of 1500 DEG C.It is highly preferred that the preparation method of the hard nanometer alloy includes：Will
Coarse granule tungsten carbide that the grain size of 100 parts by weight is 2.5-3.5 μm, the grain size of 52-64 parts by weight are 0.2-0.3 μm and received
The forming agent rubber of rice grain tungsten carbide, the cobalt powder that the grain size of 15-20 parts by weight is 4-5 μm and 20-32 parts by weight is carried out
Mixing, mechanical pressurization forming processes are then carried out, obtain shaping blank；, will in the case where vacuum is 350-450Pa vacuum environment
The blank of the shaping is sintered 9-10 hours under the conditions of being 1430-1440 DEG C in temperature.
Present invention also offers a kind of method for manufacturing above-mentioned alloy complex, wherein, this method includes：By steel plate layer,
Metal adhesive layer and nano hard alloy material layer overlap compacting and obtain squeeze board successively, then carry out heat to the squeeze board
Fusion welding, to cause the metal adhesive layer to melt so that the steel plate layer and the nano hard alloy material layer combine
Together.
In the present invention, there is no particular limitation for the dosage of the metal adhesive layer, according to the conventional dosage in this area
, such as the thickness of metal adhesive layer before welding can be 0.3-0.6mm.
In the manufacturing process of the present invention, the sweat soldering technique can use the conventional technique in this area, for example, institute
The temperature for stating sweat soldering can be 1100-1300 DEG C, preferably 1100-1200 DEG C.
In the present invention, the sweat soldering technique is preferably high frequency brazing sweat soldering technique, can use high frequency pricker
Welding machine is carried out.Specific technological parameter and operating method can be that this area is conventional, will not be repeated here.
Invention additionally provides the alloy complex of the present invention answering on toothed chain is taken off in railway permanent ways maintaining cleaning car
With.The hardness and wearability of the alloy complex of the present invention are very excellent, when the grilled teeth for railway permanent ways maintaining cleaning car
Chain, the hardness, mechanical strength and service life of grilled teeth head can be significantly increased.
The present invention will be described in detail by way of examples below.
In the following Examples and Comparative Examples, coarse granule tungsten carbide, nanometer particle tungsten carbide and cobalt powder are purchased from Zhang Yuan
Wu Ye companies.
Preparation example 1
Coarse granule tungsten carbide that grain size by 100 parts by weight is 3 μm, the nanometer that the grain size of 58 parts by weight is 0.25 μm
Particle tungsten carbide, the grain size of 18 parts by weight are that 4.5 μm of cobalt powder and the butadiene-styrene rubber of 25 parts by weight are mixed, and are then carried out
Mechanical pressurization forming processes obtain shaping blank；Under the vacuum environment that vacuum is about 400Pa, by the blank of the shaping
It is sintered at a temperature of 1435 DEG C 9.5 hours, obtains nano hard alloy J1.
By calculating, on the basis of gained nano hard alloy J1 gross weight, the content of the coarse granule tungsten carbide is
57 weight %, the content of the nanometer particle tungsten carbide is 33 weight %, and the content of the cobalt is 10 weight %.
Preparation example 2
Coarse granule tungsten carbide that grain size by 100 parts by weight is 2.5 μm, the grain size of 64 parts by weight are 0.20 μm and received
Rice grain tungsten carbide, the grain size of 15 parts by weight are that 4.0 cobalt powder and the butadiene rubber of 20 parts by weight are mixed, and are then carried out
Mechanical pressurization forming processes, obtain shaping blank；Under the vacuum environment that vacuum is about 410Pa, by the blank of the shaping
It is sintered at a temperature of 1430 DEG C 10 hours, obtains nano hard alloy J2.
By calculating, on the basis of gained nano hard alloy J2 gross weight, the content of the coarse granule tungsten carbide is
56 weight %, the content of the nanometer particle tungsten carbide is 36 weight %, and the content of the cobalt is 8 weight %.
Preparation example 3
Coarse granule tungsten carbide that grain size by 100 parts by weight is 3.5 μm, the grain size of 52 parts by weight are 0.30 μm and received
Rice grain tungsten carbide, the grain size of 20 parts by weight are that 5.0 cobalt powder and the buna of 30 parts by weight are mixed, and are then carried out
Mechanical pressurization forming processes, obtain shaping blank；Under the vacuum environment that vacuum is about 430Pa, by the blank of the shaping
It is sintered at a temperature of 1440 DEG C 9 hours, obtains nano hard alloy J3.
By calculating, on the basis of gained nano hard alloy J3 gross weight, the content of the coarse granule tungsten carbide is
58 weight %, the content of the nanometer particle tungsten carbide is 30 weight %, and the content of the cobalt is 12 weight %.
Preparation example 4
The nano hard alloy of the present invention is prepared according to the method for embodiment 1, except that, nanometer particle tungsten carbide
Grain size is 5.0 μm, obtains nano hard alloy J4.
By calculating, on the basis of gained nano hard alloy J4 gross weight, the content of the coarse granule tungsten carbide is
57 weight %, the content of the nanometer particle tungsten carbide is 33 weight %, and the content of the cobalt is 10 weight %.
Prepare comparative example 1
Method according to preparation example 1 prepares the nano hard alloy of reference, except that, the use of nanometer particle tungsten carbide
Measure as 25 parts by weight, obtain reference nano hard alloy DJ1.
By calculating, on the basis of gained nano hard alloy J4 gross weight, the content of the coarse granule tungsten carbide is
70 weight %, the content of the nanometer particle tungsten carbide is 17 weight %, and the content of the cobalt is 13 weight %.
Prepare comparative example 2
Method according to preparation example 1 prepares the nano hard alloy of reference, except that, the dosage of cobalt powder is 7 weight
Part, obtain reference nano hard alloy DJ2.
By calculating, on the basis of gained nano hard alloy J4 gross weight, the content of the coarse granule tungsten carbide is
61 weight %, the content of the nanometer particle tungsten carbide is 35 weight %, and the content of the cobalt is 4 weight %.
Embodiment 1-4
By nano hard alloy material J1~J4 (corresponding to embodiment 1-4 respectively) tablettings obtained by preparation example 1-4 into certain
The nano hard alloy material layer of thickness (being shown in Table 1), respectively with thickness be 1cm ZGMn18 steel plate layers (elemental composition is shown in Table 1)
With metal adhesive layer (thickness be 0.2mm copper foil) according to being followed successively by nano hard alloy material layer, metal from top to bottom
The order of adhesive layer and steel plate layer overlaps compacting and obtains squeeze board successively, is then carried out the squeeze board using high frequency brazing machine
Sweat soldering so that copper foil is melted so that the steel plate layer and the nano hard alloy material layer are bonded together.Heat
The specific process parameter of fusion welding is shown in Table 1.
Comparative example 1-2
Carried out according to embodiment 1-4 method, except that, prepare the nanometer hard that 1-2 is prepared using contrast
Alloy material DJ1~DJ2.
Comparative example 3-5
Carried out according to the method for embodiment 1, except that, change technological parameter, be specifically shown in Table 1.
Table 1
Test case
Alloy complex obtained by embodiment 1-4 and comparative example 1-5 is subjected to following test, and result is remembered in table 2：
1) mean grain size (μm) of nano hard alloy：By purchased from Baite Instrument Co., Ltd., Dandong's model
Bettersize Intelligent Laser granularity instrument is tested.
2) density (kg/m of nano hard alloy3)：Using with purchased from Dongguan City Hong Tuo Instrument Ltd. model DE-
120M hard alloy density tester test.
3) hardness (HRA) of alloy complex：By by purchased from Beijing epoch scientific ＆ technical corporation of Linkage model THRS-
150 Rockwell apparatus instrument is tested.
4) the tensile strength Rm (N/mm of alloy complex2) by purchased from Beijing epoch scientific ＆ technical corporation of Linkage model WB-
100 universal testing machine is tested.
Table 2
From table 2 it can be seen that the alloy complex of the present invention has excellent tensile strength and hardness, contrast is considerably better than
Example.The hardness of the alloy complex of the present invention can reach more than 92HRA, and tensile strength can reach 980N/mm2More than, and
And the mean grain size of nano hard alloy material therein can reach less than 3.5 μm, density can reach 13kg/m3With
On.Therefore, alloy complex of the invention can be significantly increased and taken off when the grilled teeth chain for railway permanent ways maintaining cleaning car
Hardness, mechanical strength and the service life of tooth head.
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 described in above-mentioned embodiment
Each particular technique feature, in the case of reconcilable, can be combined by any suitable means, in order to avoid not
Necessary repetition, the present invention no longer separately illustrate to various combinations of possible ways.In addition, a variety of implementations of the present invention
It can also be combined between mode, as long as it without prejudice to the thought of the present invention, it is public that it should equally be considered as institute of the invention
The content opened.
Claims (13)
1. a kind of alloy complex, it is characterised in that the alloy complex includes steel plate layer, metal adhesive layer and nanometer hard
Alloy material layer, the steel plate layer are combined by metal adhesive layer with the nano hard alloy material layer, the nanometer
Hardmetal materials layer contains coarse granule tungsten carbide, nanometer particle tungsten carbide and cobalt, with the nano hard alloy material layer
On the basis of gross weight, the content of the coarse granule tungsten carbide is 50-60 weight %, and the content of the nanometer particle tungsten carbide is
30-40 weight %, the content of the cobalt is 10-15 weight %, and the grain size of the coarse granule tungsten carbide is 1.8-5.5 μm, institute
The grain size for stating nanometer particle tungsten carbide is 0.1-0.4 μm,
The nano hard alloy material layer by the way that nano hard alloy material is sintered to obtain, wherein, the nanometer
Hardmetal materials contain coarse granule tungsten carbide, nanometer particle tungsten carbide and cobalt powder, and the nano hard alloy material is carried out
Sintering includes：
(1) coarse granule tungsten carbide, nanometer particle tungsten carbide, cobalt powder and forming agent rubber are mixed, and is molded into blank；
(2) under vacuum conditions, the blank of shaping is sintered.
2. alloy complex according to claim 1, wherein, the grain size of the coarse granule tungsten carbide is 2.5-3.5 μm,
The grain size of the nanometer particle tungsten carbide is 0.2-0.3 μm.
3. the alloy complex according to right wants 1, wherein, on the basis of the gross weight of the steel plate layer, C in the steel plate layer
Content be that 1-1.4 weight %, Mn content is that 16-19 weight %, Cr content is that 2-3 weight %, Mo content is 0.2-
0.5 weight %, Si content≤0.5 weight %, P content≤0.07 weight %, Fe content are 75.53-80.8 weight %.
4. alloy complex according to claim 3, wherein, the thickness of the steel plate layer is 0.5-5cm.
5. the alloy complex according to right wants 1, wherein, the thickness of the nano hard alloy material layer is 1-5mm.
6. the alloy complex according to right wants 1, wherein, the metal adhesive layer is layers of copper.
7. alloy complex according to claim 1, wherein, in step (2), the condition of the sintering processes includes：
Temperature is 1400-1500 DEG C, vacuum 300-600Pa, and the time is 8-11 hours.
8. alloy complex according to claim 7, wherein, temperature is 1430-1440 DEG C, vacuum 350-450Pa,
Time is 9-10 hours.
A kind of 9. method of the alloy complex in manufacturing claims 1-8 described in any one, it is characterised in that this method bag
Include：Steel plate layer, metal adhesive layer and nano hard alloy material layer are overlapped into compacting successively and obtain squeeze board, then to described
Squeeze board carries out sweat soldering, to cause the metal adhesive layer to melt so that the steel plate layer and the nanometer hard close
Golden material layer is combined together.
10. according to the method for claim 9, wherein, the thickness of the metal adhesive layer is 0.1-0.3mm.
11. according to the method for claim 9, wherein, the temperature of the sweat soldering is 1100-1300 DEG C.
12. according to the method for claim 11, wherein, the sweat soldering is high frequency brazing sweat soldering.
13. alloy complex the taking off on toothed chain in railway permanent ways maintaining cleaning car in claim 1-8 described in any one
Using.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436775A (en) * | 1981-06-24 | 1984-03-13 | General Electric Company | Hard metal body and method of making same |
| CN1210770A (en) * | 1998-07-31 | 1999-03-17 | 姚雷雨 | Hard alloy wear resistant parts and the producing method |
| CN102418022A (en) * | 2011-10-31 | 2012-04-18 | 山东金天牛矿山机械有限公司 | Hard alloy material for ore |
| CN103643100A (en) * | 2013-12-11 | 2014-03-19 | 中国神华能源股份有限公司 | Nanocrystalline hard alloy and preparation method thereof |
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| US8535600B2 (en) * | 2009-03-23 | 2013-09-17 | Kabushiki Kaisha Toyota Chuo Kenkyusho | High temperature-resistant article, method for producing the same, and high temperature-resistant adhesive |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436775A (en) * | 1981-06-24 | 1984-03-13 | General Electric Company | Hard metal body and method of making same |
| CN1210770A (en) * | 1998-07-31 | 1999-03-17 | 姚雷雨 | Hard alloy wear resistant parts and the producing method |
| CN102418022A (en) * | 2011-10-31 | 2012-04-18 | 山东金天牛矿山机械有限公司 | Hard alloy material for ore |
| CN103643100A (en) * | 2013-12-11 | 2014-03-19 | 中国神华能源股份有限公司 | Nanocrystalline hard alloy and preparation method thereof |
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