CN109504889A - (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process and product - Google Patents
(Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process and product Download PDFInfo
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- CN109504889A CN109504889A CN201910006666.0A CN201910006666A CN109504889A CN 109504889 A CN109504889 A CN 109504889A CN 201910006666 A CN201910006666 A CN 201910006666A CN 109504889 A CN109504889 A CN 109504889A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/14—Casting in, on, or around objects which form part of the product the objects being filamentary or particulate in form
-
- 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
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
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- 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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- 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
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
Abstract
The invention discloses one kind (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process, comprising: mix hard-phase particles (Ti, W) C and active element particle Cr, Mo, Cu with cold glue, it is pressed into prefabricated section after particle is made, is placed on designated position；Under subnormal ambient, the basis material molten steel handled well to prefabricated section casting melting, pouring temperature is 1600~1650 DEG C；Casting complete, quenching generates (Ti, W) Cp/Fe in-situ composite after solidification.The quality and basis material steel alloy quality of molten steel ratio of hard-phase particles (Ti, W) C is 5~30%, and the density ratio of hard-phase particles (Ti, W) C and ferrous metals liquid is 0.9~1.1.The present invention passes through (Ti, W) the fusion in situ of C particle, active element and basis material, enhance the metallurgical bonding of hard phase and basis material, hard phase is avoided to fall off separation, enhance being uniformly distributed for particle, the intensity, toughness and wear resistance for strengthening product orientation enhancing region, improve product adaptation range and service life, reduce technology difficulty and production cost.
Description
Technical field
The present invention relates to metallurgical technology fields, fixed more particularly to a kind of (Ti, W) Cp/Fe in-situ composite bimetallic
Position fusion process and product.
Background technique
Composite material is referred to as the new engineering material of 21 century, and metal-base particles reinforced composite material is with its distinctive height
It is specific strength, high ratio modulus, low thermal expansion, heat-resisting, wear-resistant conductive, thermally conductive, fire-retardant, the excellent synthesis such as gas is not discharged in use
Performance and development prospect become an important branch of composite material.
The research of metal-base composites is concentrated mainly on the basic aspect of light material at present, but as in life
The research and application of widely used steel-based composite material, are but in the desk study stage in production, mainly in laboratory item
In terms of microstructure interface, process of setting technology of preparing scheduling theory under part, then rare report is applied to and developed.Steel
The specific strength price of material is minimum a kind of engineering material in addition to cement, but its comprehensive performance is much higher than cement, using model
It encloses extensively.
Iron base composite material has the originals such as fusing point is high, density is big, manufacturing process is difficult relative to light-weight metal composite material
Cause causes research achievement few, becomes urgently field leaved for development.
The main research achievement of particle reinforced iron matrix composites has at present:
1, whole compound
Powder metallurgy: alloying element and iron-based powder stir briquetting, and sintering generates iron base composite material.This material hardness
Height, still, high production cost, poor toughness, it is difficult to be formed and be firmly combined with fertile material.
Smelting process: ferrous metals liquid, moulding by casting after electromagnetic agitation mixing is added in hard alloy particle.This method
The disadvantage is that the wetability of enhancing particle and matrix is poor, the metallurgical bonding of fusion, Yi Fasheng in use process can not be formed with matrix
Enhancing particle falls off, and common enhancing particle general density is lower, and segregation, which is seriously difficult to form disperse, to be uniformly distributed, and easily
Generate harmful phase.
Alloying element powder particle: being added the ferrous metals liquid of smelting furnace by in-situ reaction casting, medium in fusion process
Temperature reaction, in-situ preparation hard phase.Carbide and matrix have soaked interfacial cleanliness, enhancing particle even dispersion distribution, technique letter
It is single at low cost.But be limited to the whole enhancing of homogenous material, individually working position cannot position it is compound, thus
It is not able to satisfy the performance requirement of machine components different parts.
2, surface layer is compound
Coating: being mixed with alloy powder with adhesive composition, is sprayed on mo(U)ld face, and molten metal and coating material reflection are given birth to
At composite layer.The disadvantage is that composite layer is less than 1 millimeter, friction durability is low.
Self- propagating casting infiltration (SHS): being placed on surface area for prefabricated alloyed powder tablet, is infiltrated molten steel molten metal point
Combustion, prefabricated film reflection heat are dissolved in matrix and form hard phase.The conbustion synthesis process is completed in a short period of time, process
It is difficult to control, bad interfacial reaction, segregation, and all remains non-equilibrium transitional face impurity；In addition, the porosity of SHS process is high,
It is difficult to prepare dense material.
3, part is compound
It is more it is desirable that improve the wearability of component working portion in production, however, component connection or support section
Performance requirement is often high-toughness high-strength, is needed in working portion composite ganoine material rather than entirety or surface layer are compound.
It is mechanical compound: generally to use solid State Welding, inlay and the modes such as solid-liquid combination.However, the defect of mechanical bond is led
The unreliability combined is caused, often occurs falling off at work, phenomenon of rupture, equipment is damaged, influences the service life of part, make
At waste of material, cost of equipment maintenance is improved.
Biliquid is compound: using two kinds of metal liquids of hard material and toughness material, solidifies state for two kinds of metal composites half
Together.The shortcomings that this method is recombination process poor controllability, and yield rate is low；Boundary moisture is poor, and composite quality is unstable, easily
Fatigue fracture falls off；Production process is complicated, and product cost is high.
In two patents of invention before applicant, use first by hard alloy particle (granular size for 0.1mm ×
0.1mm × 0.1mm~20mm × 20mm × 20mm) it is placed in mold, then the method for being poured basis material alloy solution, preparation are double
Metal composite products, products obtained therefrom can be realized the metallurgical bonding of cemented carbide material and basis material, have preferable wear-resisting
Degree.But gradually found in further practice, it still will appear what hard alloy partial particulate fell off using the product of the program
Phenomenon, thus need further to be improved.
To sum up, there are still various shortcomings, the application applications for double-metal composite technique in the prior art and products thereof
People has founded one kind (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process and product, can meet hard increasing
The metallurgical melting of dispersivity is formed in situ between Qiang Xiangyu basis material, avoids the separation that falls off, and composite material is fixed on
Specified region, realizes on local enhancement (non-surface layer), meets the different performance requirement of part different parts.
Summary of the invention
The technical problem to be solved in the present invention is to provide one kind (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusions
Technique can meet the metallurgical melting that dispersivity is formed in situ between hard reinforced phase and basis material, avoid the separation that falls off,
And the composite material is fixed on specified region, it realizes on local enhancement (non-surface layer), meets the difference of part different parts
The bimetallic fusion process of performance requirement, to overcome the shortcomings of existing double-metal composite technique.
It is melted in order to solve the above technical problems, the present invention provides one kind (Ti, W) Cp/Fe in-situ composite bimetallic positioning
Technique is closed, the technique includes the following steps:
(1) hard-phase particles (Ti, W) C and active element particle Cr, Mo, Cu are mixed with cold glue, is suppressed after particle is made
At prefabricated section, it is placed on designated position；
(2) under subnormal ambient, Xiang Suoshu prefabricated section is poured the basis material molten steel that melting is handled well, and pouring temperature is
1600~1650 DEG C；
(3) after casting complete solidification, quenching generates (Ti, W) Cp/Fe in-situ composite.
It is further improved, the granularity of hard-phase particles (Ti, W) C and active element particle Cr, Mo, Cu in the step (1)
At 5-10 microns.
It being further improved, the mass ratio of the quality of hard-phase particles (Ti, the W) C and described matrix material molten steel is 5~
30%.
It is further improved, the density of hard-phase particles (Ti, the W) C and the density ratio of described matrix material molten steel are 0.9
~1.1.
It is further improved, the quality of described active element particle Cr, Mo, Cu and the quality score of described matrix material molten steel
It Wei 1~5%, 0.3~0.5%, 0.3~0.5%；
It further include accounting for described matrix material quality of molten steel than the adjuvant for 0.3~0.4% in the prefabricated section.
It is further improved, the subnormal ambient in the step (2) is to vacuumize to obtain to closed case, and the prefabricated section is set
Designated position in mold, the mold are placed in inside the closed case；Described matrix material is cast steel or alloy cast steel.
It is further improved, the nice foundry sand of low heat conductivity is filled between the closed case inner wall and mold outside.
It is further improved, after the completion of being poured in the step (3), first stops negative pressure 1-2 minutes, keep the box house
Temperature in 3 minutes be not less than 1550 degree；Start negative pressure rapidly again, reaches rapid cooling.
Invention additionally discloses one kind (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion product, the product is answered
It is made of above-mentioned (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process, the hardness of the product working position
For HRC60-65, microhardness 2.795GPa.
It is further improved, the product is grinder hammerhead, liner plate, railway tamping pickaxe or mine mechanism accessory.
By adopting such a design, the present invention has at least the following advantages:
The present invention is fused by the in situ of hard carbide (Ti, W) C particle, active element and basis material, further strong
The metallurgical melting between carbonization titanium tungsten hard phase and parent metal material is changed, to effectively prevent falling off, dividing for hard phase
From.
The present invention is compound by the positioning of (Ti, W) Cp/Fe in-situ composite and basis material, further enhances double
The intensity, toughness and wear resistance of metal composite products appointed part improve the adaptation range and use of bimetallic joint product
Service life；Due also to being disposal pouring, many difficulties of bimetallic liquid second pouring are avoided, technology difficulty and life are reduced
Cost is produced, is more suitable for promoting and applying.
Present invention process method is controllable, and production cost is low, high yield rate, compound secured, can meet machine components difference portion
The performance requirement of position.
Specific embodiment
The technical problem to be solved in the present invention is to provide a kind of (Ti, W) Cp/Fe in-situ composite bimetallic positioning is compound
Technique, makes it play the strong feature of active element binding ability, and reinforced phase (Ti, W) C and matrix alloy molten steel form in situ molten
It closes, avoids falling off, separate.Also by the position of fixed (Ti, W) Cp/Fe in-situ composite, need to position according to production molten
It closes, can further promote working face wear resistance, reduce technology difficulty and production cost.The specific process steps are as follows:
The present embodiment (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process includes the following steps:
(1) it by hard-phase particles (Ti, W) C and active element particle Cr, Mo, Cu and adjuvant, mixes, makes with cold glue
At with the approximate particle of evaporative pattern bead size, be pressed into the prefabricated section of required shape, be placed on the designated position of mold；
Wherein, titanium carbide (TiC) Mohs' hardness is 9.5, and microhardness 2.795GPa, its hardness is only second to Buddha's warrior attendant
Stone has high thermal stability, and high rigidity face-centred cubic structure, lattice constant and lattice types are very approximate with austenite, are convenient for
In conjunction with matrix.Tungsten carbide (WC) Mohs' hardness 9, microhardness 1.73GPa, fusing point height (2870 degree), density highest (19.3g/
cm2), most high-temperature behavior and thermal conductivity have very high compression modulus and elasticity modulus, the wetability pole with ferrous metals
It is good.W is approximate with the lattice structure of Ti, easily formation cocrystalization compound；W substitutes the Ti, (Ti, W) C of generation, (Ti, W) C in TiC
Density and ferrous metals are close, alleviate the segregation of reinforced phase and matrix, are conducive to disperse and are uniformly distributed.
The density ratio of hard-phase particles (Ti, W) C and ferrous metals liquid is 0.9~1.1 in the present embodiment, i.e. the two is close
Degree is approximate, helps that In-situ reaction is promoted to react, and improves material property.
The granularity of the hard-phase particles (Ti, W) C and active element particle Cr, Mo, Cu are 5~10 microns.And hard phase
It is 3~15%, 1~5%, 0.3 respectively that the quality of particle (Ti, W) C, Cr, Mo, Cu and adjuvant, which accounts for enhancing position substrate quality,
~0.5%, 0.3~0.5%, 0.3~0.4%.
Cold glue uses EPS cold glue in the present embodiment, and adjuvant uses homogeneous agent commonly used in the art, it is therefore an objective to play homogenization
Effect.
(2) under subnormal ambient, the basis material molten steel handled well to the casting melting of the prefabricated section of above-mentioned preparation, casting temperature
Degree is 1600~1650 DEG C.
Wherein, which uses cast steel or alloy cast steel material, and the basis material molten steel is iron-based in the present embodiment
Metal liquid, density are about 7.8.Subnormal ambient is to vacuumize to obtain to closed case in the present embodiment, which is set
Designated position in mold, and the mold is placed in inside the closed case.
3) after casting complete solidification, quenching generates (Ti, W) Cp/Fe in-situ composite.
Wherein, hardening heat is 850-950 DEG C.
Hard phase (Ti, W) C in this way after disposal pouring mixes, is keeping the temperature and is solidifying with high temperature ferrous metals liquid
Ferrous metals liquid and (Ti, W) C hard phase, active element form fusion in situ, while titanium carbon reaction release heat in the process,
For other carbon and titanium, the reaction was continued provides heat；Wherein active element reduces interface energy, keeps electronegativity stronger, forms dispersivity
Fusion in situ.Generated in-situ hard phase has apparent booster action to matrix；The basis material is with its strong martensite
Matrix fuses together carbonization titanium tungsten close and firm, generates support protective effect to enhancing particle, and the two complements each other,
Composite property is substantially increased, the final service life for improving product.
And the present embodiment is in casting process, the nice foundry sand of cooperation filling low heat conductivity also in the closed case, such as
Nice foundry sand is filled between on the outside of the closed case inner wall and mold, good insulation effect can be played.Such as after the completion of pouring, first
Stopping negative pressure 1-2 minutes, the temperature for being able to maintain box house is not less than 1550 degree in 3 minutes, then start negative pressure rapidly again,
Box house heat is excluded, is allowed to quickly solidify, the technique realizing high heat preservation, solidifying fastly, conducive to the completion of In-situ reaction reaction.
In (Ti, W) Cp/Fe in-situ composite bimetallic positioning combination process of the invention, due to reinforced phase (Ti, W) C's
Density is approximate with ferrous metals basis material, and close with the lattice types of austenite, and wetability is good, it is possible to as Ovshinsky
The crystallization nuclei of body can play the role of thinning microstructure, and strengthen matrix.Wherein active element is diffused into reinforced phase edge,
It is enriched in phase boundary surface layer and forms cladding membrane structure, wetability can be improved, promote the complex reaction of (Ti, W) C and other elements,
Reinforced phase and basis material is promoted to form metallurgical melting.
The present invention also by reacting under the conditions of the non-gravity of subnormal ambient, solves between reinforced phase and basis material
Density contrast caused by segregation problems；It is also reinforced phase and matrix material there are also pouring temperature in present invention process and soaking time
The essential condition that In-situ reaction reacts between material, the good fully reacting for promoting the combination process of energy, reduces the life of harmful phase
At.
So (Ti, W) Cp/Fe in-situ composite bimetallic positioning combination process of the invention is able to solve existing production
Uniformity is poor in iron base composite material technology, wetability and the problem of density contrast.
Above-mentioned (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process can produce the original position (Ti, W) Cp/Fe
Composite material bimetallic positioning fusion product, the product can set for grinder hammerhead, liner plate, railway tamping pickaxe or mining machinery
Standby accessory.The hardness of its product working position is HRC60-65, microhardness 2.795GPa.
Specific product embodiment is as follows.
Embodiment one
Utilize smashing for above-mentioned (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process production railway tamping machine
Gu pick, matrix composition is alloy cast steel material, and enhancing element carbonization titanium tungsten, active element particle Cr, Mo, Cu and homogeneous agent etc. are mixed
Conjunction be made with the approximate particle of evaporative pattern bead size, formed with cold glue, be placed on working-part tip position in tamping pickaxe mold
It sets.It is poured matrix molten steel, pouring temperature is 1650 degree, in-situ forming compound carbonization titanium tungsten, microhardness 2.795GPa；It quenches
Fiery temperature is 850 degree air-cooled, which is HRC66.The tamping pickaxe shaped upper part is cylindrical body, resistance to
Mill composite layer is 50mm*35mm*130mm, and gross weight is 13.5 kilograms.
The object of tamping pickaxe work is crushed granite, has thump in the course of work, this is wear-resisting in tamping pickaxe test
There is not the case where particle fragmentation in the hard alloy of pick metacarpus point.
Embodiment two
Contiuum type crusher hammer is produced using above-mentioned (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process
Head, matrix composition are alloy cast steel material, and the mixing such as enhancing element carbonization titanium tungsten, active element chromium, copper, molybdenum and homogeneous agent are prefabricated
At with the approximate grain structure of evaporative pattern bead size, formed with cold glue, be placed on working portion position in tup mold.Casting
Matrix molten steel, generates the original position (Ti, W) C alloying material by 1600 degree of pouring temperature, wherein (Ti, W) C Mohs' hardness is 9.5, it is micro-
Hardness is 2.795GPa, tensile strength 514Mpa, impact flexibility 2.8J/cm2, bending strength: N/cm21150；Hardening heat 850
Spend air-cooled, tup working portion hardness HRC65.9.5 kilograms of the tup gross weight, shape is cuboid 65mm*30mm*590mm, resistance to
Grind composite layer 65mm*30mm*50mm.
The tup be crushed 4000-5000 kilocalorie coal, no strong impact force, wear surface concave-convex surface, positioning strengthening part without
Fragmentation phenomenon.
Embodiment three
It is hammered into shape using above-mentioned (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process production mine Large Crusher
Head, matrix composition are alloy cast steel material, and the mixing such as enhancing element carbonization titanium tungsten, chromium, copper, molybdenum, homogeneous agent are prefabricated into and disappear
The approximate grain structure of mould bead size, is formed with cold glue, is placed on working portion position in heavy hammer mold, is poured matrix
Molten steel, generates the original position (Ti, W) C alloying material by 1600 degree of pouring temperature, wherein (Ti, W) C Mohs' hardness is 9.5, microhardness
For 2.795GPa, tensile strength 514Mpa, impact flexibility 2.8J/cm2, bending strength: N/cm21150；850 degree of skies of hardening heat
It is cold.Hammer-shaped be segment 360mm*100mm*500mm, wear-resistant composite bed 360mm*100mm*80mm, 96 kilograms of gross weight.
Tup working portion hardness HRC65, the working life of the tup improve compared with the working life of existing tup
It is more than three times.
Metallographic Analysis is carried out to the bimetallic composite machine product that the said goods embodiment 1 to 3 produces.Metallographic is shown: each
The matrix of product is martensite, a small amount of retained austenite, and carbide hard phase is uniformly distributed, Mathematical Analysis of Al-li Alloy Containing Rare Earth and its week
Visible a large amount of (Ti, W) C, reinforced phase and pyrosol complete wetting, realize hard alloy on the melting binder course matrix enclosed
Metallurgical bonding between material and basis material.
Hardness test is carried out to the bimetallic composite machine product that the said goods embodiment 1 to 3 produces.Hardness test result
The working portion hardness of display, the double-metal composite technique product of above-described embodiment production is HRC60-65, and microhardness is
2.795GPa, reinforced phase carbonization titanium tungsten part maintain its original hardness, there is stronger resistance abrasive material chisel to cut polishing machine, can
Service life than traditional wear-resistant material product improves 3-5 times.
Matrix is risen with the titanium-tungsten that is carbonized superpower hardness according to the bimetallic joint product that present invention process produces
To apparent booster action, and basis material is melted hard alloy particle material tight with its strong martensitic structure securely
It is combined, plays a supporting role in protection to cemented carbide material, the two complements each other, and extends product service life, reduces
Production cost.
The manufacturing process of tungsten carbide button's prefabricated block, this hair in basis material used in compared with the existing technology
It is bright to focus on active element and reduce interface, improving material wetability and the strong feature of electronegativity, improve the forming core power and original of crystal
Position reaction bonded power, mitigates the segregation of reinforced phase, realizes the homogenization distribution of reinforced phase, the titanium tungsten reinforced phase that is carbonized and basis material
Metallurgical bonding, efficiently avoid the falling off of hard phase, phenomenon of rupture；The high heat preservation of the present invention and in process of production use,
The technique solidified fastly keeps the non-basis material for reinforcing position and reinforcement position formation bimetallic compound, meets machine components difference
In-situ compound technology and bimetallic positioning casting technique are combined into one by the performance requirement at position, improve the compound production of bimetallic
Wear resistance, adaptation range and the service life of product.
The present invention is the iron base composite material prepared with casting, at low cost (to be better than U.S. Alloy Technology
The powder metallurgical technique development of International company, Novel Titanium-iron composite hard alloy material), mechanical property is excellent；
Hardness processing is reduced by annealing, can be machined, present invention could apply to tool die industry or need height
The field of hardness product is a kind of widely used novel high hardness material.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, this
Field technical staff makes a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all falls within this hair
In bright protection scope.
Claims (10)
1. one kind (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process, which is characterized in that the technique includes such as
Lower step:
(1) hard-phase particles (Ti, W) C and active element particle Cr, Mo, Cu are mixed with cold glue, be made after particle be pressed into it is pre-
Clamp dog is placed on designated position；
(2) under subnormal ambient, the basis material molten steel handled well of Xiang Suoshu prefabricated section casting melting, pouring temperature is 1600~
1650℃；
(3) after casting complete solidification, quenching generates (Ti, W) Cp/Fe in-situ composite.
2. (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process according to claim 1, feature exist
In the granularity of hard-phase particles (Ti, W) C and active element particle Cr, Mo, Cu are at 5-10 microns in the step (1).
3. (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process according to claim 1, feature exist
In the quality of hard-phase particles (Ti, the W) C and the mass ratio of described matrix material molten steel are 5~30%.
4. (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process according to claim 1, feature exist
In the density of hard-phase particles (Ti, the W) C and the density ratio of described matrix material molten steel are 0.9~1.1.
5. (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process according to claim 1, feature exist
In, the quality of described active element particle Cr, Mo, Cu and the mass ratio of described matrix material molten steel be respectively 1~5%, 0.3~
0.5%, 0.3~0.5%；
It further include accounting for described matrix material quality of molten steel than the adjuvant for 0.3~0.4% in the prefabricated section.
6. (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process according to claim 1, feature exist
In the subnormal ambient in the step (2) is to vacuumize to obtain to closed case, and the prefabricated section is placed in the specific bit in mold
It sets, the mold is placed in inside the closed case；
Described matrix material is cast steel or alloy cast steel.
7. (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process according to claim 6, feature exist
In the nice foundry sand of filling low heat conductivity between the closed case inner wall and mold outside.
8. (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process according to claim 7, feature exist
In after the completion of pouring in the step (3), first stopping negative pressure 1-2 minutes, keeps the temperature of the box house in 3 minutes
Not less than 1550 degree；Start negative pressure rapidly again, reaches rapid cooling.
9. one kind (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion product, which is characterized in that the products application power
Benefit requires 1 to 8 described in any item (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion process to be made, the product
The hardness of working position is HRC60-65, microhardness 2.795GPa.
10. (Ti, W) Cp/Fe in-situ composite bimetallic positioning fusion product according to claim 9, feature exist
In the product is grinder hammerhead, liner plate, railway tamping pickaxe or mine mechanism accessory.
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| CN201910006666.0A CN109504889B (en) | 2019-01-04 | 2019-01-04 | Bimetal positioning fusion process for (Ti, W) Cp/Fe in-situ composite material and product |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111069571A (en) * | 2020-02-10 | 2020-04-28 | 孙岗 | Endogenetic metal composite of control and pick |
| CN113766984A (en) * | 2019-04-30 | 2021-12-07 | 伊诺科有限责任公司 | Composite material reinforced with tungsten carbide based on an in-situ produced alloy and method for the production thereof |
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| JPS58147552A (en) * | 1982-02-25 | 1983-09-02 | Hitachi Metals Ltd | Composite jig and tool material and its manufacture |
| CN103302269A (en) * | 2013-07-11 | 2013-09-18 | 孙岗 | Bimetal complex product and hard alloy melt-casting process thereof |
| CN104148621A (en) * | 2014-09-09 | 2014-11-19 | 孙岗 | Casting technology and product of double-metal composite hard alloy particles |
| CN104209498A (en) * | 2014-07-24 | 2014-12-17 | 昆明理工大学 | Preparing method of interface modification layer of ceramic particle enhanced metal base composite material |
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2019
- 2019-01-04 CN CN201910006666.0A patent/CN109504889B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58147552A (en) * | 1982-02-25 | 1983-09-02 | Hitachi Metals Ltd | Composite jig and tool material and its manufacture |
| CN103302269A (en) * | 2013-07-11 | 2013-09-18 | 孙岗 | Bimetal complex product and hard alloy melt-casting process thereof |
| CN104209498A (en) * | 2014-07-24 | 2014-12-17 | 昆明理工大学 | Preparing method of interface modification layer of ceramic particle enhanced metal base composite material |
| CN104148621A (en) * | 2014-09-09 | 2014-11-19 | 孙岗 | Casting technology and product of double-metal composite hard alloy particles |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113766984A (en) * | 2019-04-30 | 2021-12-07 | 伊诺科有限责任公司 | Composite material reinforced with tungsten carbide based on an in-situ produced alloy and method for the production thereof |
| CN113766984B (en) * | 2019-04-30 | 2023-09-22 | 伊诺科有限责任公司 | Tungsten carbide reinforced composite material based on in-situ manufactured alloy and method for producing same |
| CN111069571A (en) * | 2020-02-10 | 2020-04-28 | 孙岗 | Endogenetic metal composite of control and pick |
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| CN109504889B (en) | 2021-01-08 |
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