CN106282835A - The method of secondary alloyed preparation high rigidity high-strength tenacity ferrio wear-resistant material - Google Patents
The method of secondary alloyed preparation high rigidity high-strength tenacity ferrio wear-resistant material Download PDFInfo
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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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
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0292—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with more than 5% preformed carbides, nitrides or borides
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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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/56—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon
Abstract
A kind of method that the invention discloses secondary alloyed preparation high rigidity high-strength tenacity ferrio wear-resistant material, comprise the following steps: (1) is by after raw material melting, water fog method prepares alloy powder A, and in described alloy powder A, the weight/mass percentage composition of each element is: Cr 18%～23%, Mo 0.8%～1.8%, Ni 0.6%～%1.5%, Ti 0.3%～0.8%, Si 0.4%～1.0%, V0.6%～1.2%, C 2.4%～2.9%, Fe are surplus；(2) by powder B and 90～the alloy powder A ball mill mixing of 93 mass parts of 7～10 mass parts, add forming agent, make blank, more sintered obtain described ferrio wear-resistant material；In described powder B, the weight/mass percentage composition of each composition is: Cu 12%～24%, Ni 12%～20%, Mo 9%～15%, Mn 6%～12%, TiC 15%～25%, Fe are surplus.The ferrio wear-resistant material physical and mechanical property of the present invention is excellent, has reached the technical standard of the corresponding trade mark of Industrial Steel bond hard alloy.
Description
Technical field
The present invention relates to powder metallurgical technology, resistance to particularly to secondary alloyed preparation high rigidity high-strength tenacity iron-based
Mill material.
Background technology
The wear-resistant structural material used under Contact-impact fretting wear working condition, has no relevant all the time and uses ferrum
The report of base powder metallurgy high-abrasive material.Such as, at GB/T14667.1-93 national standard " P/m Iron Base structural material "
In, intensity and the highest trade mark of impact flexibility and the lowest trade mark, its hardness number is the lowest, be not belonging to high-abrasive material it
Class.Edited in " liquid-phase sintering powdered metallurgical material " book of Chemical Industry Press's distribution in 2003 by Guo Gengchen, the 6th
Chapter " liquid-phase sintering of ferrous based powder metallurgical " is inner, does not also find the relevant preparation high rigidity wear-resisting material of high-strength tenacity P/m Iron Base
Expect valuable reference frame.Version also had no relevant class in 2007 at U.S. MPIF " powder metallurgy structural parts standard "
As ferrio wear-resistant material.Additionally, also retrieved in recent years at the paper about delivering on periodical and magazine, such as 2011 4
The moon " material science and technique ", volume 19 the 2nd phase " research of high alloy Tribological Properties of Fe-based " was civilian
In, iron-base materials with high alloying elements hardness HRC50.5 and bending strength 663MPa of its design are also not suitable for thump fretting wear
Working condition requirement." powder metallurgy industry " the 3rd phase of volume 19 in 1999, " TiC compound additive was to iron-base powder metallurgy material
The research of Effect on Mechanical Properties ", " XI AN JIAOTONG UNIVERSITY Subject Index " volume 35 the 9th phase " iron-based powder smelting under different temperatures in 2011
The impact wear rule of gold copper-base alloy ", " mechanical engineering material " the 5th phase of volume 36 in 2012, " new non-carbide granule strengthened iron-based
The microstructure and property of powdered metallurgical material " etc. in document, all there are no high rigidity high-strength tenacity ferrous based powder metallurgical high-abrasive material
Report.This is one of background technology.
The two of background technology are, the present invention is directed to the wear-resisting of the wear knots component demand that China is currently in use in the market
Material and research and develop.Such as blade of a sword plate, liner plate, tup and the high speed impact mould etc. that use on disintegrating apparatus.Particularly on disintegrating apparatus
The wear-resistant structural material used is that metallurgy and foundry part is many, and major part material is potassium steel and rich chromium cast iron.Owing to smelting casting
Make the wearing piece that method produces, inevitably there is component segregation, organize thick, loose, shrinkage cavity, pore, crackle and slag inclusion
Etc. defect, causing foundry goods fracture is ordinary affair.And these high-abrasive materials are in national standard, avoid and having referred to about important performance
Mark.Such as, in GB/T5680-2010 " Hadfield steel foundry goods " standard, this important performance indexes of hardness has just been avoided.
Therefore could can only use by castingin TM52 steel bonded carbide on its work surface.At GB/T8263-2010, " wear-resistant white is cast
Part " standard in, avoided obdurability performance indications.Owing to not having obdurability, it uses only as wear-resistant castingin block.Above-mentioned
The performance indications that standard is avoided, are because current melting and casting production technology and tooling device are unable to reach or can not obtain
Go out an ideal value to state.And the wearing piece using powder metallurgy process to produce, the deficiency of this respect can be made up, fill up it
Blank.So under the conditions of above-mentioned background technology, utilizing powder metallurgy process to invent secondary alloyed preparation high rigidity high-strength
Toughness P/m Iron Base high-abrasive material.
The three of background technology are, the principle of the present invention is that alloying is theoretical, and under the guidance of this theory, proposition secondary closes
Aurification meets powder metallurgy process and produces the requirement of ferrio wear-resistant material.Meanwhile, " wear-resistant also for GB/T26652-2011
Composite castings " in, imbedding hard alloy block is expensive, and castingin 2 wear-resistant white cast block hardness low (only HRC56) etc. is asked
Topic.And develop the secondary alloyed preparation high rigidity high-strength tenacity P/m Iron Base high-abrasive material of the present invention.
Summary of the invention
It is an object of the invention to provide a kind of secondary alloyed preparation high rigidity high-strength tenacity ferrio wear-resistant material.As front
Described, replace the castingin wear-resistant white foundry goods block that obdurability is poor, hardness is low, simultaneously the ferrio wear-resistant material of also realization low cost
Replace or part replaces expensive steel bonded carbide.
The technical scheme is that, it is provided that a kind of secondary alloyed preparation high rigidity high-strength tenacity ferrio wear-resistant material
Method, comprises the following steps:
Alloying (pre-alloyed) for the first time: (1), by after raw material melting, prepares alloy powder A, described alloy with water fog method
In powders A, the weight/mass percentage composition of each element is: Cr 18%～23%, Mo 0.8%～1.8%, Ni 0.6%～%
1.5%, Ti 0.3%～0.8%, Si 0.4%～1.0%, V 0.6%～1.2%, C 2.4%～2.9%, Fe are surplus；
Alloying for the second time: the powder B and 90 of 7～10 mass parts～the alloy powder A ball milling of 93 mass parts are mixed by (2)
Material, adds forming agent, makes blank, more sintered obtains described ferrio wear-resistant material；
In described powder B, the weight/mass percentage composition of each composition is: Cu 12%～24%, Ni 12%～20%, Mo 9%
～15%, Mn 6%～12%, TiC 15%～25%, Fe be surplus.
Further, described forming agent is rubber solutions.
Further, the particle diameter of described alloy powder A is less than 75 microns.
Further, the particle diameter of the TiC powder in described powder B is less than 0.5 micron.
Further, in described powder B, Mn adds with the form of MnFe master alloyed powder.
Further, in described step (2), the temperature control of sintering is: forming agent is sloughed in first heating；It is warming up to 1080 again
～1120 DEG C, heat-preserving deoxidizing reducing metal；Being continuously heating to 1150～1270 DEG C, insulation realizes alloying；Finally cooling obtains
Described ferrio wear-resistant material.
Further, in described step (1), the temperature of melting is 1450～1550 DEG C.
The present invention provides the ferrio wear-resistant material that above-mentioned preparation method obtains further.
Technology relevant to the present invention is described further below:
The basis of the technology of the present invention solution is that alloying is theoretical, is powder metallurgy side as it was previously stated, secondary alloyed
Method produces the key of iron.First for the first time alloying is to utilize high melt technology, the alloying element that will design, as
The melting under the high temperature of about 1500 DEG C such as Cr, Si, Mo, V, C, Fe so that it is completely after alloying, by water under high pressure chilling atomization system
Take pre-alloyed powder.Containing substantial amounts of carbide and intermetallic compound in this prealloy powder, such as (Fe, Cr)7C3、Mo2C、
The intermetallic compounds such as VC, SiC have (Cr-Mo-Si), (Fe-Mo) and (Cr-Mo) etc..These carbides and intermetallic compound
There are higher fusing point and hardness；It is evenly distributed, and particle diameter is less than the powder of 75 μm；It is strengthening in ferrous alloy
It is again hard phase mutually, plays and improve intensity and increase the effect of hardness；It is different under as-cast condition formed to be into continuous print thick
Big netted brittlement phase, adds, also different from commercially available, the carbide hard phase that in alloy, wettability is poor.Here it is for the first time
Alloying is produced the special benefits of pre-alloyed powder or is innovative point.So-called second time alloying is by pre-alloyed powder sintering system
Become the alloying process of iron-base products.For ensureing that sintered products has high rigidity, high-strength tenacity, it must be added on sintering process
In rise cementation alloy element and rise solution strengthening effect carbide.Therefore, sintered alloy chemical conversion point is devised
And with the addition of solution strengthening agent.The alloy element selected has Cu, Ni, Mo, Mn and Fe etc., and Mn is with the shape of MnFe master alloyed powder
Formula adds.Adding the commercially available particle diameter TiC powder less than 0.5 μm the most again, it plays solid solution dispersion-strengtherning, fills coarse grain powder gap
With the effect stoping crystal grain to be grown up；The most also improving the hardness of sintered alloy body, protection matrix is not by plow, matrix protection carbonization
Thing is not peeled off, and improves Wear Resistance.
The present invention secondary alloyed preparation high rigidity high-strength tenacity P/m Iron Base high-abrasive material, both make use of smelting skill
Alloying in art, the interfacial effect that merged again the ultra-fine grain powder in modern New Technologies In Powder Metallu Rgy is theoretical (or is chi
Very little effect), promote liquid-phase sintering activity under vacuo, promote forming core, stop crystal grain to be grown up, improve consistency, also improve
Intensity and hardness.Thus successfully it is manufactured that P/m Iron Base high-abrasive material.Its mechanical and physical performance has reached TM52
The performance of Steel-bonded Cemented Carbide, its performance is as shown in table 1.
Table 1 alloy of the present invention compares with TM52 steel bonded carbide performance
| The trade mark | Density (g/3) | Sintered state hardness (HRC) | Bending strength (MPa) | Toughness (J/2) |
| TM52 alloy | 6.10 | 60～62 | 1900 | 8.1 |
| Alloy of the present invention | 7.54 | 58～61 | 1940 | 9.0～12.0 |
As shown in Table 1, hardness and the obdurability of alloy of the present invention are the most suitable with TM52 steel bonded carbide.This is melting
Casting method is difficult to.As it was previously stated, just without hardness number in the standard of " Hadfield steel foundry goods ", at " wear-resistant white
Ironcasting " standard in, the highest trade mark of hardness also only has HRC58.As can be seen here, the present invention utilizes powder metallurgy process to realize
High rigidity, high-strength tenacity, have a prominent meaning to improving wearability undoubtedly.
The composition of the present invention, as it was previously stated, alloying is to produce pre-alloyed powder for the first time.Theoretical according to alloying, if
The constituent element major part of meter pre-alloyed powder is carbide, to have enough carbon, guarantee carbide shape simultaneously
The needs become.To this, the content of design Ingredient percent is: Cr 18%～23%, Mo 0.8%～1.8%, Ni
0.6%～%1.5%, Ti 0.3%～0.8%, Si 0.4%～1.0%, V 0.6%～1.2%, C 2.4%～2.9%,
Fe is surplus.Any commercially available carbide hard phase can not be added in the producing process of pre-alloyed powder, existed by alloying element completely
Alloying carbide and intermetallic compound, guarantee its enough hardness and obdurability is formed during high melt.This
The gross mass degree inventing described pre-alloyed powder is 90%～93%.Double sintering alloying of the present invention rises viscous
The alloying ingredients of knot effect and the carbide gross mass degree playing solution strengthening are 10%～7%.Rise as previously mentioned
The mass percentage content of the alloy element of double sintering effect and the carbide formers that plays solution strengthening is: Cu 12%～
24%, Ni 12%～20%, Mo 9%～15%, Mn 6%～12%, TiC15%～25%, Fe are surplus.Wherein TiC grain
Footpath is less than 0.5 μm, and Mn adds with MnFe master alloyed powder.Be can be seen that by the composition of above-mentioned design and do not add carbon, be because interpolation
Carbide former is few, but must contain a small amount of carbon, and the source of carbon is in MnFe intermediate alloy and TiC granule, containing few
The free carbon of amount.A part for these free carbons, during vacuum-sintering, when temperature reaches about 1100 DEG C, can be with gold
Belong to the O in powder2React, form CO gas and discharge, reducing metal.Also small part is had to form carbide with some metal
(M2C).If separately adding the metal minimizing that carbon can make to be solid-solution in matrix, alloy is caused to become fragile, so carbon can not separately be added.It addition,
As it was previously stated, play the ultra-fine grain TiC that solid solution dispersion-strengtherning is made, also need strictly to control its amount, alloy the most also can be made to become fragile.
The production technology of the present invention, the most identical with steel bonded carbide, but also have some to distinguish.Something in common is: with
Sample uses powder metallurgy conventional production process, i.e. ball mill mixing, add-on type agent pelletizing in compound, is then pressed into hair
Base, blank is after forming agent is sloughed in pre-burning in a vacuum furnace, and the sintering that continues to heat up obtains product.But difference mainly has 3 points:
One is, steel bonded carbide divides hard phase and Binder Phase；And the present invention sheerly powder metallurgical ferrous alloy.But the present invention needs to melt
Refining powder by atomization operation produces pre-alloyed powder.Certainly it can produce with elemental metals powder the most completely, but its alloy
Change will not be complete, because it only rely on the Elements Diffusion in sintering process to form alloying with migration is limited.Certain
A little powders may be seam, and the most real alloying completely.So hardness of product can be the lowest, the most uneven, intensity, tough
Property is also difficult to reach requirement.Two are, the ball mill mixing that the present invention uses is dry type ball mill mixing, are not required to as steel bonded carbide is wanted
Ball mill mixing is carried out, the more aobvious simplification of technique by protective substance.Three are, product of the present invention, can during dry type ball mill mixing
It is simultaneously introduced forming agent zinc stearate, after mixing, then the compacting of row blank.Owing to the suppression performance of iron based compacts is poor, this firmly
Fat acid zinc forming agent needs higher pressing pressure, is typically greater than the pressing pressure of 600MPa, if the big pressure of product size,
Higher.So being unfavorable for making forming agent with zinc stearate.After the present invention uses dry type ball mill mixing, add rubber solutions forming agent,
Carry out blank compacting again by pelletizing, molding press power can be greatly decreased, thus reduce grinding tool and damage and abrasion, extend its longevity
Life, is also beneficial to product density.The actual density of this product is 7.6～7.7g/cm3, and the density of sintered products (being shown in Table 1)
For 7.54g/cm3, relative density has reached 97.9%～99%.
Product of the present invention except mechanical and physical performance and TM52 steel bonded carbide quite in addition to, its contrast abrasion performance abrasion
Performance test is better than TM52.Simultaneously the most also with prealloy powder with only with the sintered sample produced of a certain amount of copper powder (i.e. without two
The sample of secondary alloying), sample isSintered state pole, be put in microspheric form grinding barrel, add bearing
Alloy steel ball 6kg, carries out dry type wear hardness test, and in mechanical milling process, ball milling bucket outer wall feel has obvious fever phenomenon.Warp
After 31h abrasion, taking-up is weighed, and result is as shown in table 2.
Table 2 wears away wear test result
Being found out by table 2, the wearability of secondary alloyed rod improves about 1.3 times than TM52.With without secondary alloyed burning
Knot rod improves about 0.8 times.Explain this phenomenon, can only go to explain in terms of alloying principle.As it was previously stated, the present invention first
In the alloying component of secondary pre-alloying powder, carbon content is high, and the alloying element forming carbide and intermetallic compound is many, high temperature
During melting, alloying is complete.Hard Inclusion is many and distributed uniform.Although TM52 is liquid-phase sintering, but it is never such as the molten steel of rolling
Such alloying is more complete, and the Hard Inclusion putting off until some time later TM52 is the most also one of reason.Next to that design during double sintering alloying
Alloying element and content and sintering process parameter select rationally.Such as, the sintered alloy temperature of design when 1100 DEG C,
The length of sintering time and temperature retention time is particularly significant.Because being now the copper powder process that forms micro-molten bath, it it is again powder deoxidation
Process, the time of abundance will be had to allow micro-molten bath spread, the diffusion in micro-molten bath, promote the grain boundary between powder, work occur
Property sintering process.When temperature reaches more than 1200 DEG C, enter the alloying sintering of liquid phase, sintering velocity and temperature retention time also phase
When important.Because MnFe powder now is in semi-molten state, allow it return slow diffusion, make reactive sintering reach peak, make Ni, Mo more
Good moistening dystectic TiC granule, promotes grain boundary further, improves bond strength and preferably fills gap.It is real
Existing product of the present invention has the highly alloyed best illustration of high density, high rigidity, high-strength tenacity and high-wear resistance.
Designed by above-mentioned technique and aforesaid composition, can be to secondary alloyed preparation high rigidity high-strength tenacity powder metallurgy iron
The feature rule of base high-abrasive material are received following (beneficial effect):
1. being shown by the data of aforementioned table 1, the ferrio wear-resistant material physical and mechanical property of the present invention is excellent, has reached work
The technical standard of the corresponding trade mark of industry steel bonded carbide.
2. saving hard phase resource, the amount that product of the present invention adds TiC is few, is formed carbide by alloyage process completely
Impact and abrasion is resisted, unlike steel bonded carbide is completely dependent on hard phase to resist abrasion, not only with intermetallic compound
Cost high-wearing feature is the poorest.
3. being found out by the abrasion test of aforementioned table 2, the present invention is resistant to the high-wearing feature material of Contact-impact fretting wear
Material.
Detailed description of the invention
Technical scheme is further illustrated in conjunction with detailed description of the invention.
Embodiment
The present invention prepares pre-alloyed powder and accounts for the 90%～93% of alloy gross mass, and the required powder of second time alloying
End accounts for the 10%～7% of alloy gross mass, and altogether 100%；Wherein said first time alloying obtains pre-alloyed powder composition
Mass percentage content is: Cr 18%～23%, Mo 0.8%～1.8%, Ni 0.6%～1.5%, Ti 0.3%～
0.8%, Si 0.4%～1.0%, V 0.6%～1.2%, C 2.4%～2.9%, Fe are surplus.Sintered alloy for the second time
In the powder of middle interpolation, the mass percent of each component is: Cu 12%～24%, Ni 12%～20%, Mo 9%～15%,
Mn 6%～12%, TiC 15%～25%, Fe are surplus；Wherein TiC particle diameter is less than 0.5 μm, and Mn is with MnFe master alloyed powder
Add.
Alloying produces the implementation process of pre-alloyed powder for the first time is to calculate each constituent element by above-mentioned mass percent and contain
Amount, then weighs, and adds melting in intermediate frequency furnace, after fusing completely, overheated 50～100 DEG C, is atomized into water under high pressure chilling
Pre-alloyed powder, through dehydrate, sieves less than the powder of 75 μm.
The implementation process of alloying is for the second time, by mass percentage, is weighed by prealloy powder and puts in ball milling bucket, then will
The powder weighing of double sintering, adds in ball milling bucket, carries out ball mill mixing, adds forming agent and make in the material mixed
After Li, carry out product blank compacting.The blank suppressed loads vacuum sintering furnace, sloughs forming agent in low temperature slow heat mode
After, after heating to about 1100 DEG C heat-preserving deoxidizing reducing metals, continue to heat to 1150～1270 DEG C, it is achieved liquid phase
Be incubated during sintered alloy a period of time blowing out cooling, it is thus achieved that product, dispatched from the factory by test package.
Above the present invention is carried out exemplary description, it is clear that realize the present invention and not exclusively limited by aforesaid way
System, as long as have employed the various improvement that technical solution of the present invention is carried out, or the most improved design by the present invention and technical scheme
Direct applied situation, such as pre-alloyed powder are used instead in the elements such as W, Nb, Ta, Mn and sintered alloy element and use instead
Co、Zr、SiFe、AlFe、ZrC、WC、Cr3C2, TiN, NbC and TiB2Deng, the most within the scope of the present invention.
Claims (8)
1. the method for a secondary alloyed preparation high rigidity high-strength tenacity ferrio wear-resistant material, it is characterised in that include following
Step:
(1) by after raw material melting, alloy powder A is prepared with water fog method, the weight/mass percentage composition of each element in described alloy powder A
For: Cr 18%～23%, Mo 0.8%～1.8%, Ni 0.6%～%1.5%, Ti 0.3%～0.8%, Si 0.4%～
1.0%, V 0.6%～1.2%, C 2.4%～2.9%, Fe are surplus；
(2) by powder B and 90～the alloy powder A ball mill mixing of 93 mass parts of 7～10 mass parts, add forming agent, make
Blank, more sintered obtain described ferrio wear-resistant material；
In described powder B, the weight/mass percentage composition of each composition is: Cu 12%～24%, Ni 12%～20%, Mo 9%～
15%, Mn 6%～12%, TiC 15%～25%, Fe are surplus.
2. the method for claim 1, it is characterised in that described forming agent is rubber solutions.
3. the method for claim 1, it is characterised in that the particle diameter of described alloy powder A is less than 75 microns.
4. the method for claim 1, it is characterised in that the particle diameter of the TiC powder in described powder B is less than 0.5 micron.
5. the method for claim 1, it is characterised in that in described powder B, Mn adds with the form of MnFe master alloyed powder
Enter.
6. the method for claim 1, it is characterised in that in described step (2), the temperature control of sintering is: first heat
Slough forming agent；It is warming up to 1080～1120 DEG C again, heat-preserving deoxidizing reducing metal；It is continuously heating to 1150～1270 DEG C, insulation
Realize alloying；Finally cooling obtains described ferrio wear-resistant material.
7. the method for claim 1, it is characterised in that in described step (1), the temperature of melting is 1450～1550
℃。
8. the ferrio wear-resistant material prepared by the method described in any one of claim 1～7.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111647717A (en) * | 2020-05-23 | 2020-09-11 | 河北龙凤山铸业有限公司 | Method for improving appearance quality of ultra-pure pig iron for casting |
| CN113453815A (en) * | 2019-02-19 | 2021-09-28 | 瑞典海博恩材料与技术有限公司 | Hard metal hard alloy |
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| CN106282835B (en) | 2017-12-15 |
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