CN109550937A - A kind of steel-based composite liner and preparation method thereof - Google Patents

A kind of steel-based composite liner and preparation method thereof Download PDF

Info

Publication number
CN109550937A
CN109550937A CN201811600232.5A CN201811600232A CN109550937A CN 109550937 A CN109550937 A CN 109550937A CN 201811600232 A CN201811600232 A CN 201811600232A CN 109550937 A CN109550937 A CN 109550937A
Authority
CN
China
Prior art keywords
steel
ceramic
preparation
based composite
obtains
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811600232.5A
Other languages
Chinese (zh)
Inventor
郑开宏
王娟
罗铁钢
董晓蓉
王海艳
路建宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Institute of Materials and Processing
Original Assignee
Guangdong Institute of Materials and Processing
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Institute of Materials and Processing filed Critical Guangdong Institute of Materials and Processing
Priority to CN201811600232.5A priority Critical patent/CN109550937A/en
Publication of CN109550937A publication Critical patent/CN109550937A/en
Pending legal-status Critical Current

Links

Classifications

    • B22F1/0003
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00Casting processes not provided for in groups B22D1/00 - B22D21/00
    • B22D23/04Casting by dipping
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02Compacting only
    • B22F3/04Compacting only by applying fluid pressure, e.g. by cold isostatic pressing [CIP]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12Both compacting and sintering
    • B22F3/14Both compacting and sintering simultaneously
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0081Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10Processes characterised by the sequence of their steps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Fluid Mechanics (AREA)
  • Powder Metallurgy (AREA)

Abstract

The present invention provides a kind of preparation methods of steel-based composite liner, belong to technical field of composite materials, the type that the present invention passes through control raw material, amount ratio and preparation method, ceramic phase reinforcement obtained includes the iron of ceramic hard phase and non-rigid phase, ceramic hard mutually includes aluminium oxide, zirconium oxide, vanadium carbide, titanium carbide and chromium carbide, on the one hand high component (> 50%) is solved, barrier of the ceramic particle Dispersed precipitate of small particle (1000 μm of <) in steel material, on the other hand it solves the problems, such as to wash away containing ceramic phase reinforcement in high-temperature steel iron liquid easily defeated and dispersed, ceramic phase reinforcement is eliminated simultaneously is also easy to produce stomata in later period casting recombination process, slag inclusion, the defects of crackle, steel-based composite liner defect obtained significantly reduces, improve wear-resisting property.Embodiment statistics indicate that, steel-based composite liner wear-resisting property provided by the invention is excellent.

Description

A kind of steel-based composite liner and preparation method thereof
Technical field
The present invention relates to technical field of composite materials more particularly to a kind of steel-based composite liner and preparation method thereof.
Background technique
Metal material is most important engineering material, and in metal material, 90% is steel, and steel material has price just Preferably, it resourceful, superior performance and easy the features such as accomplishing scale production, is widely used.How steel material is improved Performance also become lot of domestic and foreign scholar research target, one of them important research direction is exactly iron base composite material Development and application.The reinforcement particle of low-density, high rigidity and high intensity, which is added in steel substrate, prepares particle reinforced iron Based composites improve its elasticity modulus, hardness, wearability and high-temperature behavior, answer extensively while reducing density of material For industrial circles such as wear parts.
Hard ceramic micro mist, such as ZrO2、Al2O3, the densification micro mist such as WC, hardness is generally higher than steel material, is ideal Steel-based composite material enhances particle.Studies have shown that the lesser composite material of particle size yield stress with higher, and Under the working conditions such as fretting wear, usually the enhancing grain volume fraction of abrasion working face is also required to be greater than 50%, conventional system Standby technique is difficult to realize.
Scattered plum of Zhao etc., which reports, can prepare 2~3mmZTA ceramic particle enhancing steel-based composite material (referring to " ZTA/ The preparation and polishing machine research of rich chromium cast iron based composites ", Zhao dissipates plum etc., foundry engieering, 2011,32 (12): 1673- 1676), but the ZTA ceramic particle for 50 μm of partial size <, since micro- intergranular pore is too small, storeroom wetability and steel The limitation of the factors such as mobility, is difficult to prepare using casting infiltration.CN1297798A, which is disclosed, first prepares reinforcement green body, then passes through casting Sintering technology makes to be pasted onto green compact sintering densification on mould wall simultaneously using casting process high-temperature molten steel or the heat of molten iron High-temperature chemical reaction occurs, thus the composite surface material layer stable in cast(ing) surface generation surfacing, thickness.Utilize molten iron Heat in cavity filling process, in-situ preparation VC, TiC etc. in reinforcement are completed at the same time the metallurgical interface knot of reinforcement and matrix It closes.But this method reinforcement has three: 1) internal-response is violent, and heat, volume fluctuation are huge, reinforcement and base There is shrinkage cavity, stress collection moderate defect in body interface, and since molten iron casting filling time is short, ferroalloy quick solidification, internal gas Hole, stress etc. can not be discharged or discharge the short time, will lead to form a large amount of initial crack sources;2) it washes away in high-temperature steel iron liquid and easily bursts It dissipates;3) in the case where filling time of casting is short, thermal capacity leads to the graphite being added reaction not exclusively, remains stone in cast-internal Ink dot defect reduces material mechanical performance.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of steel-based composite liners and preparation method thereof.The present invention mentions The content of hard phase in high reinforcement makes the ceramic particle Dispersed precipitate of small particle (< 1000 μm) in the barrier of steel material, together When eliminate reinforcement the later period casting recombination process in be also easy to produce stomata, slag inclusion, crackle the defects of, improve steel-based composite liner Wear-resisting property.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
A kind of preparation method of steel-based composite liner, comprising the following steps:
(1) raw material is mixed, obtains admixed finepowder, the raw material includes following components in percentage by weight: 10~60% Hard ceramic powder, 10~22% high-carbon chromium iron, 2~4.5% vanadium iron powder, 1~2.5% carbonized titanium powder, 1.5~ 3.5% nickel powder and 25~70% reduced iron powder;
(2) ball milling after mixing the admixed finepowder that the step (1) obtains with dehydrated alcohol, obtains ball milling product;
(3) isostatic pressing is carried out after drying the ball milling product that the step (2) obtains, obtains ceramic phase reinforcement base Body;
(4) the ceramic phase reinforcement green body hot pressed sintering for obtaining the step (3), obtains ceramic phase reinforcement;
(5) casting steel melt, obtains steel after the ceramic phase reinforcement that the step (4) obtains being fixed in liner plate sand mold Base composite liner idiosome;
(6) the steel-based composite liner idiosome that the step (5) obtains is heat-treated, obtains steel-based composite lining Plate.
Preferably, in the step (1) average grain diameter of hard ceramic powder less than 1000 μm.
Preferably, hard ceramic powder includes Al in the step (1)2O3·ZrO2Complex-phase ceramic micropowder and/or ZrO2It is micro- Powder.
Preferably, the pressure of isostatic pressing is 180~300MPa, the guarantor of the isostatic pressing in the step (3) The pressure time is 0.5~1h.
Preferably, the temperature of hot pressed sintering is 1230~1550 DEG C in the step (4), and the pressure of the hot pressed sintering is 20~50MPa, the time of the hot pressed sintering are 0.5~2h.
Preferably, the time of ball milling is 12~36h in the step (2), and the revolving speed of the ball milling is 100~300rpm.
Preferably, temperature dry in the step (3) is 100~250 DEG C, and the time of the drying is 2~5h.
Preferably, the temperature cast in the step (4) is 1400~1600 DEG C.
Preferably, the temperature being heat-treated in the step (6) is 1020~1070 DEG C, and the time is 1~2h.
The present invention also provides steel-based composite liners made from preparation method described in above-mentioned technical proposal.
The present invention provides a kind of preparation methods of steel-based composite liner, and raw material is mixed, and obtain admixed finepowder, described Raw material includes following components in percentage by weight: 10~60% hard ceramic powder, 10~22% high-carbon chromium iron, 2~ 4.5% vanadium iron powder, 1~2.5% carbonized titanium powder, 1.5~3.5% nickel powder and 25~70% reduced iron powder;It will mix Ball milling after micro mist is mixed with dehydrated alcohol is closed, ball milling product is obtained;Isostatic pressing will be carried out after the drying of ball milling product, is made pottery Porcelain reinforcement green body;By ceramic phase reinforcement green body hot pressed sintering, ceramic phase reinforcement is obtained;Ceramic phase reinforcement is fixed on liner plate sand Casting steel melt, obtains steel-based composite liner idiosome after in type;Steel-based composite liner idiosome is heat-treated, steel is obtained Iron-based composite liner.The present invention is compared with casting-sinter process, by hot-pressing sintering technique, makes VC, Cr in ceramic phase reinforcement7C3Deng The synthetic reaction of reinforced phase occurs in this process procedure, makes heat absorption, the heat release of material, contraction, expansion of volume etc. are in advance Occur, thus is avoided that the physical chemistry transformation of the short time in casting process, causes composite material remaining pore defect, interface residual The problems such as residue stress is excessive, reaction is incomplete, product property is undesirable;Compared with gravity or pressure casting infiltration, ceramics obtained Reinforcement hole is uniform, and steel melt can preferably penetrate into;Compared with stirring-centre spinning, ceramic particle reunion is avoided Phenomenon, and uniform particle sizes' distribution of ceramic particle, are conducive to industry application;The present invention is low in cost simultaneously, can mechanization degree Height adapts to be mass produced, and promotion prospect is very wide.Type, amount ratio and the preparation that the present invention passes through control raw material Method, ceramic phase reinforcement obtained include the iron of ceramic hard phase and non-rigid phase, and ceramic hard mutually includes aluminium oxide, oxidation On the one hand it is micro- to solve high component (> 50%), the ceramics of small particle (1000 μm of <) for zirconium, vanadium carbide, titanium carbide and chromium carbide On the other hand grain Dispersed precipitate solves to wash away easily defeated and dispersed difficulty in high-temperature steel iron liquid containing ceramic phase reinforcement in the barrier of steel material Topic, while eliminating the defects of ceramic phase reinforcement is also easy to produce stomata, slag inclusion, crackle in later period casting recombination process, steel obtained Iron-based composite liner defect significantly reduces, and improves wear-resisting property.Embodiment statistics indicate that, steel-based provided by the invention is multiple It closes liner plate and improves 2~2.5 times than the wear-resisting property of liner plate made from steel substrate.
Specific embodiment
The present invention provides a kind of preparation methods of steel-based composite liner, comprising the following steps:
(1) raw material is mixed, obtains admixed finepowder, the raw material includes following components in percentage by weight: 10~60% Hard ceramic powder, 10~22% high-carbon chromium iron, 2~4.5% vanadium iron powder, 1~2.5% carbonized titanium powder, 1.5~ 3.5% nickel powder and 25~70% reduced iron powder;
(2) ball milling after mixing the admixed finepowder that the step (1) obtains with dehydrated alcohol, obtains ball milling product;
(3) isostatic pressing is carried out after drying the ball milling product that the step (2) obtains, obtains ceramic phase reinforcement base Body;
(4) the ceramic phase reinforcement green body hot pressed sintering for obtaining the step (3), obtains ceramic phase reinforcement;
(5) casting steel melt, obtains steel after the ceramic phase reinforcement that the step (4) obtains being fixed in liner plate sand mold Base composite liner idiosome;
(6) the steel-based composite liner idiosome that the step (5) obtains is heat-treated, obtains steel-based composite lining Plate.
The present invention mixes raw material, obtains admixed finepowder, and the raw material includes following components in percentage by weight: 10~ 60% hard ceramic powder, 10~22% high-carbon chromium iron, 2~4.5% vanadium iron powder, 1~2.5% carbonized titanium powder, 1.5 ~3.5% nickel powder and 25~70% reduced iron powder.
In the present invention, the weight percent of hard ceramic powder is preferably 45% in the raw material.In the present invention, described The average grain diameter of hard ceramic powder is preferably smaller than 1000 μm, more preferably less than 900 μm.
In the present invention, the hard ceramic powder preferably includes Al2O3·ZrO2Complex-phase ceramic micropowder and/or ZrO2Micro mist. The present invention is to the Al2O3·ZrO2Complex-phase ceramic micropowder and ZrO2The source of micro mist does not have special restriction, using this field skill Commercial goods known to art personnel.
In the present invention, the weight percent of the raw material medium high carbon ferrochrome powder is preferably 17.6%.In the present invention, institute State the component that high-carbon chromium iron preferably comprises following mass fraction: C 6.0~10.0%, Cr 62~72%, Fe 20~35%. The present invention does not have special restriction to the source of the high-carbon chromium iron, is using commercial goods well known to those skilled in the art It can.
In the present invention, the weight percent of vanadium iron powder is preferably 3.6% in the raw material.In the present invention, the vanadium Iron powder preferably comprises the component of following mass fraction: V 35~65%, Fe 35~65%.The present invention carrys out the vanadium iron powder Source does not have special restriction, using commercial goods well known to those skilled in the art.
In the present invention, the weight percent of carbonized titanium powder is preferably 1.8% in the raw material.The present invention is to the carbonization The source of titanium valve does not have special restriction, using commercial goods well known to those skilled in the art.
In the present invention, the weight percent of nickel powder is preferably 2% in the raw material.Source of the present invention to the nickel powder There is no special restriction, using commercial goods well known to those skilled in the art.
In the present invention, the weight percent of reduced iron powder is preferably 30% in the raw material.The present invention is to the reduction The source of iron powder does not have special restriction, using commercial goods well known to those skilled in the art.
After obtaining admixed finepowder, ball milling after the present invention mixes the admixed finepowder with dehydrated alcohol obtains ball milling product. In the present invention, the time of the ball milling is preferably 12~36h, and the revolving speed of the ball milling is preferably 100~300rpm.
In the present invention, the amount ratio of the admixed finepowder and dehydrated alcohol is preferably 100g:40~60mL.
After obtaining ball milling product, the present invention will carry out isostatic pressing after ball milling product drying, obtain ceramic enhancing Body green body.In the present invention, the temperature of the drying is preferably 100~250 DEG C, and more preferably 150 DEG C, the time of the drying Preferably 2~5h, more preferably 3h.In the present invention, the drying preferably carries out in a vacuum drying oven.
In the present invention, the pressure of the isostatic pressing is preferably 180~300MPa, more preferably 250MPa, described The dwell time of isostatic pressing is preferably 0.5~1h.
After obtaining ceramic phase reinforcement green body, the ceramic phase reinforcement green body hot pressed sintering is obtained ceramic enhancing by the present invention Body.
In the present invention, the temperature of the hot pressed sintering is preferably 1230~1550 DEG C, and more preferably 1250 DEG C, the heat The pressure of pressure sintering is preferably 20~50MPa, and more preferably 30MPa, the time of the hot pressed sintering is preferably 0.5~2h, more Preferably 1h.The present invention makes VC, Cr in ceramic phase reinforcement by hot-pressing sintering technique7C3Etc. reinforced phases synthetic reaction at this Occur in process procedure, make heat absorption, the heat release of material, contraction, expansion of volume etc. occur in advance, thus be avoided that in casting process The physical chemistry of middle short time changes, cause composite material remaining pore defect, interface residual stress is excessive, reaction is incomplete, The problems such as product property is undesirable.
In the present invention, ceramic phase reinforcement includes the iron of ceramic hard phase and non-rigid phase.In the present invention, the ceramics are hard Matter mutually preferably comprises aluminium oxide, zirconium oxide, vanadium carbide, titanium carbide and chromium carbide.In the present invention, the shape of the ceramic phase reinforcement Shape preferably needs compound Region Matching, more preferably strip, bulk or cellular with component.In the present invention, the ceramics increase The thickness of strong body is preferably 3~80mm.
After obtaining the ceramic phase reinforcement, the present invention pours cast steel after the ceramic phase reinforcement is fixed in liner plate sand mold and melts Body obtains steel-based composite liner idiosome.The present invention does not have special restriction to the liner plate sand mold or preparation method, using this Liner plate sand mold made from preparation method known to the technical staff of field.
In the present invention, the temperature of the casting is preferably 1400~1600 DEG C, and more preferably 1450~1480 DEG C.
In the present invention, the steel melt is preferred from steel alloy, rich chromium cast iron or potassium steel.The present invention is to the alloy The specific ingredient of steel, rich chromium cast iron or potassium steel does not have special restriction.
After obtaining steel-based composite liner idiosome, the steel-based composite liner idiosome is heat-treated by the present invention, is obtained To steel-based composite liner.
In the present invention, the temperature of the heat treatment is preferably 1020~1070 DEG C, and more preferably 1050~1060 DEG C, when Between preferably 1~2h, more preferably 1~1.5h.
The present invention also provides steel-based composite liner made from preparation method described in above-mentioned technical proposal, the steel-based Composite liner includes the iron of ceramic hard phase and non-rigid phase.This hair prepares steel-based composite liner by ceramic phase reinforcement, pottery It include the iron of ceramic hard phase and non-rigid phase in porcelain reinforcement, ceramic hard mutually preferably comprises aluminium oxide, zirconium oxide, carbonization Vanadium, titanium carbide and chromium carbide.Type, amount ratio and preparation method of the present invention by control raw material, ceramics enhancing obtained Body includes the iron of ceramic hard phase and non-rigid phase, and ceramic hard mutually includes aluminium oxide, zirconium oxide, vanadium carbide, titanium carbide and carbon Change chromium, on the one hand solves the ceramic particle Dispersed precipitate of high component (> 50%), small particle (1000 μm of <) in steel material Barrier, on the other hand solves the problems, such as to wash away containing ceramic phase reinforcement in high-temperature steel iron liquid easy to be defeated and dispersed, while eliminating ceramic enhancing The defects of body is also easy to produce stomata, slag inclusion, crackle in later period casting recombination process, steel-based composite liner defect obtained is obvious It reduces, improves wear-resisting property.
Steel-based composite liner provided by the invention and preparation method thereof is described in detail below with reference to embodiment, But they cannot be interpreted as limiting the scope of the present invention.
The average grain diameter of hard ceramic powder is less than 1000 μm in all embodiments of the invention, high-carbon chromium iron preferably comprise with The component of lower mass fraction: C 6.0%, Cr 64%, Fe 30%, vanadium iron powder include the component of following mass fraction: V 35%, Fe 65%.
Embodiment 1
1) raw material and proportion;
Each raw material proportioning of ceramic phase reinforcement is as shown in table 1.
Each raw material proportioning of 1 ceramic phase reinforcement of table
2) above-mentioned admixed finepowder is put into ball grinder, the ratio that the dehydrated alcohol of 40mL is added according to every 100g micro mist is mixed It closes, drum's speed of rotation 300r/min, mixing time 12h;
3) admixed finepowder by above-mentioned after ball-milling treatment is put into vacuum oven dry, and temperature is 100 DEG C, when dry Between 5h;
4) above-mentioned admixed finepowder is put into mold and carries out isostatic pressing, pressure 180MP, pressure maintaining 1h;
5) ceramic phase reinforcement green body obtained above is subjected to hot pressed sintering, sintering temperature is 1230 DEG C, and pressure is 50MPa, dwell time 2h keep the temperature 2h;
6) ceramic enhancement phase in ceramic phase reinforcement includes aluminium oxide, zirconium oxide, vanadium carbide, titanium carbide and chromium carbide, is increased Strong body thickness 40mm;
7) liner plate sand mold is made, ceramic phase reinforcement obtained above is cut into Φ 20 × 30mm size, is placed in sand mold, Mould assembling;The melting melting rich chromium cast iron in medium-frequency induction furnace, rich chromium cast iron ingredient C:3.2%, Cr:13%, Si:0.5%, Mn:0.5%, P:0.05%, S:0.0.5%, surplus Fe;Molten steel is poured into, cast temperature is 1450 DEG C, after cooling, obtains steel Iron-based composite liner idiosome;
8) the steel-based composite liner idiosome is subjected at 1020 DEG C heat treatment 2h, obtains steel-based composite liner.
There is original Al in the reinforcement of the steel-based composite liner2O3·ZrO2Complex phase ceramic and newly-generated TiC, VC, (Fe、Cr)7C3Etc. a variety of hard reinforced phases, and interface cohesion is good.
Steel-based composite liner defect made from the present embodiment significantly reduces, to steel-based composite lining made from the present embodiment Plate carries out wear-resisting property test, as a result, it has been found that steel-based composite liner made from the present embodiment is mentioned than liner plate made from steel substrate It is 2.5 times high.
Embodiment 2
1) raw material and proportion;
Each raw material proportioning of ceramic phase reinforcement is as shown in table 2.
Each raw material proportioning of 2 ceramic phase reinforcement of table
2) above-mentioned admixed finepowder is put into ball grinder, mixes according to the ratio that the dehydrated alcohol of 60mL is added in every 100g micro mist, Drum's speed of rotation 100r/min, mixing time 36h;
3) above-mentioned admixed finepowder is put into drying in vacuum oven, temperature is 250 DEG C, drying time 2h;
4) admixed finepowder by above-mentioned after ball-milling treatment is put into mold and carries out isostatic pressing, pressure 300MP, pressure maintaining 0.5h;
5) ceramic phase reinforcement green body obtained above is subjected to hot pressed sintering, sintering temperature is 1230 DEG C, and pressure is 20MPa, dwell time 0.5h keep the temperature 0.5h;
6) ceramic enhancement phase in ceramic phase reinforcement includes aluminium oxide, zirconium oxide, vanadium carbide, titanium carbide and chromium carbide etc., Enhance body thickness 60mm;
7) liner plate sand mold is made, ceramic phase reinforcement obtained above is cut into Φ 20 × 30mm size, is placed in sand mold, Mould assembling;The molten alloy steel in medium-frequency induction furnace, alloy composition C:0.55%, Cr:2.0%, Si:0.5%, Mn: 0.5%, P:0.05%, S:0.0.5%, surplus Fe;Molten steel is poured into, cast temperature is 1480 DEG C, after cooling, obtains steel-based Composite liner idiosome;
8) the steel-based composite liner idiosome is subjected at 1070 DEG C heat treatment 1h, obtains steel-based composite liner.
There is original ZrO in the reinforcement of the steel-based composite liner2Complex phase ceramic and newly-generated TiC, VC, (Fe, Cr)7C3Etc. a variety of hard reinforced phases, and interface cohesion is good.
Steel-based composite liner defect made from the present embodiment significantly reduces, to steel-based composite lining made from the present embodiment Plate carries out wear-resisting property test, as a result, it has been found that steel-based composite liner made from the present embodiment is mentioned than liner plate made from steel substrate It is 1.5 times high.
Embodiment 3
1) raw material and proportion;
Each raw material proportioning of ceramic phase reinforcement is as shown in table 3.
Each raw material proportioning of 3 ceramic phase reinforcement of table
2) above-mentioned admixed finepowder is put into ball grinder, the ratio that the dehydrated alcohol of 40mL is added according to every 100g micro mist is mixed It closes, drum's speed of rotation 300r/min, mixing time 12h;
3) admixed finepowder by above-mentioned after ball-milling treatment is put into vacuum oven dry, and temperature is 150 DEG C, when dry Between 5h;
4) above-mentioned admixed finepowder is put into mold and carries out isostatic pressing, pressure 250MP, pressure maintaining 1h;
5) ceramic phase reinforcement green body obtained above is subjected to hot pressed sintering, sintering temperature is 1250 DEG C, and pressure is 30MPa, dwell time 1h keep the temperature 1h;
6) ceramic enhancement phase in ceramic phase reinforcement includes aluminium oxide, zirconium oxide, vanadium carbide, titanium carbide and chromium carbide etc., Enhance body thickness 50mm;
7) liner plate sand mold is made, ceramic phase reinforcement obtained above is cut into Φ 20 × 30mm size, is placed in sand mold, Mould assembling;The melting potassium steel in medium-frequency induction furnace, potassium steel ingredient C:1.35%, Cr:1.5%, Si:0.5%, Mn: 17.5%, P:0.05%, S:0.0.5%, surplus Fe;Molten steel is poured into, cast temperature is 1400 DEG C, after cooling, obtains steel Base composite liner idiosome;
8) the steel-based composite liner idiosome is subjected at 1050 DEG C heat treatment 1.5h, obtains steel-based composite lining Plate.
There is original Al in the reinforcement of the steel-based composite liner2O3·ZrO2Complex phase ceramic and newly-generated TiC, VC, (Fe、Cr)7C3Etc. a variety of hard reinforced phases, and interface cohesion is good.
Steel-based composite liner defect made from the present embodiment significantly reduces, to steel-based composite lining made from the present embodiment Plate carries out wear-resisting property test, as a result, it has been found that steel-based composite liner made from the present embodiment is mentioned than liner plate made from steel substrate It is 2.3 times high.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (10)

1. a kind of preparation method of steel-based composite liner, which comprises the following steps:
(1) raw material is mixed, obtains admixed finepowder, the raw material includes following components in percentage by weight: 10~60% it is hard Matter ceramic powder, 10~22% high-carbon chromium iron, 2~4.5% vanadium iron powder, 1~2.5% carbonized titanium powder, 1.5~3.5% Nickel powder and 25~70% reduced iron powder;
(2) ball milling after mixing the admixed finepowder that the step (1) obtains with dehydrated alcohol, obtains ball milling product;
(3) isostatic pressing is carried out after drying the ball milling product that the step (2) obtains, obtains ceramic phase reinforcement green body;
(4) the ceramic phase reinforcement green body hot pressed sintering for obtaining the step (3), obtains ceramic phase reinforcement;
(5) casting steel melt after the ceramic phase reinforcement that the step (4) obtains being fixed in liner plate sand mold, it is multiple to obtain steel-based Close liner plate idiosome;
(6) the steel-based composite liner idiosome that the step (5) obtains is heat-treated, obtains steel-based composite liner.
2. preparation method according to claim 1, which is characterized in that the average grain of hard ceramic powder in the step (1) Diameter is less than 1000 μm.
3. preparation method according to claim 1 or 2, which is characterized in that hard ceramic powder includes in the step (1) Al2O3·ZrO2Complex-phase ceramic micropowder and/or ZrO2Micro mist.
4. preparation method according to claim 1, which is characterized in that the pressure of isostatic pressing is in the step (3) 180~300MPa, the dwell time of the isostatic pressing are 0.5~1h.
5. preparation method according to claim 1, which is characterized in that the temperature of hot pressed sintering is in the step (4) 1230~1550 DEG C, the pressure of the hot pressed sintering is 20~50MPa, and the time of the hot pressed sintering is 0.5~2h.
6. preparation method according to claim 1, which is characterized in that in the step (2) time of ball milling be 12~ 36h, the revolving speed of the ball milling are 100~300rpm.
7. preparation method according to claim 1, which is characterized in that in the step (3) dry temperature be 100~ 250 DEG C, the time of the drying is 2~5h.
8. preparation method according to claim 1, which is characterized in that the temperature cast in the step (4) is 1400~ 1600℃。
9. preparation method according to claim 1, which is characterized in that the temperature being heat-treated in the step (6) is 1020 ~1070 DEG C, the time is 1~2h.
10. steel-based composite liner made from preparation method described in claim 1~9 any one.
CN201811600232.5A 2018-12-26 2018-12-26 A kind of steel-based composite liner and preparation method thereof Pending CN109550937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811600232.5A CN109550937A (en) 2018-12-26 2018-12-26 A kind of steel-based composite liner and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811600232.5A CN109550937A (en) 2018-12-26 2018-12-26 A kind of steel-based composite liner and preparation method thereof

Publications (1)

Publication Number Publication Date
CN109550937A true CN109550937A (en) 2019-04-02

Family

ID=65871352

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811600232.5A Pending CN109550937A (en) 2018-12-26 2018-12-26 A kind of steel-based composite liner and preparation method thereof

Country Status (1)

Country Link
CN (1) CN109550937A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111482579A (en) * 2020-03-17 2020-08-04 内蒙古科技大学 Wear-resistant steel bonded hard alloy composite hammer head and manufacturing method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101899585A (en) * 2010-07-23 2010-12-01 西安交通大学 Prefabricated part of composite abrasion-resistant part and method for manufacturing abrasion-resistant part with same
CN102600928A (en) * 2012-02-29 2012-07-25 中国地质大学(北京) Inserted tooth hammer of crushing machine and preparation method thereof
CN103769563A (en) * 2014-01-22 2014-05-07 西安交通大学 Preparation method for active element sintered ZTA (Zirconia Toughened Alumina) particulate reinforced steel based compound grinding roller and grinding disk
US20160068448A1 (en) * 2013-04-27 2016-03-10 Byd Company Limited Metal-ceramic composite and method of preparing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101899585A (en) * 2010-07-23 2010-12-01 西安交通大学 Prefabricated part of composite abrasion-resistant part and method for manufacturing abrasion-resistant part with same
CN102600928A (en) * 2012-02-29 2012-07-25 中国地质大学(北京) Inserted tooth hammer of crushing machine and preparation method thereof
US20160068448A1 (en) * 2013-04-27 2016-03-10 Byd Company Limited Metal-ceramic composite and method of preparing the same
CN103769563A (en) * 2014-01-22 2014-05-07 西安交通大学 Preparation method for active element sintered ZTA (Zirconia Toughened Alumina) particulate reinforced steel based compound grinding roller and grinding disk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111482579A (en) * 2020-03-17 2020-08-04 内蒙古科技大学 Wear-resistant steel bonded hard alloy composite hammer head and manufacturing method thereof

Similar Documents

Publication Publication Date Title
CN103143708B (en) Preparation method of hard alloy preform and method for preparing composite wear-resistant part by using hard alloy preform
CN103785841B (en) A kind of slurry is coated with the preparation method that ZTA strengthens steel-based composite wear-resistant part
CN103143699B (en) Composite reinforced wear-resistant part of metal-ceramic prefabricated member and manufacturing method of composite reinforced wear-resistant part
CN104399930B (en) A kind of method of centrifugal casting ceramic-metal cellular composite material grinding roller of vertical mill
CN106424740B (en) A kind of tungsten carbide granule reinforced steel matrix skin layer composite material and preparation method thereof
CN103769563B (en) A kind of preparation method of active element sintering ZTA particle enhanced steel iron-based composite grinding roll and mill
CN102225469B (en) Ceramic grid-enhanced metal wear-resistant composite and preparation method thereof
CN108359825B (en) A kind of preparation method of ceramics-graphene enhancing Cu-base composites
CN102211196A (en) Ceramic reinforced metal matrix abrasion-resisting compound material and preparation method
CN104439192A (en) Method for manufacturing cellular ceramic-metal composite vertical mill roller
CN109663900A (en) A kind of steel-based composite plate hammer and preparation method thereof
CN109439950A (en) A kind of base steel composite hammer head and preparation method thereof
CN113755737B (en) Double-scale particle reinforced metal matrix configuration composite material, preparation method and application
CN111088444A (en) Preparation method of wear-resistant composite material and preparation method of wear-resistant composite material casting
CN107214319A (en) A kind of preparation method of particles reiforced metal-base composition
CN102676956B (en) Method for preparing iron-based surface composite material by virtue of in-situ synthesis
CN109402443A (en) A kind of steel-based composite wear-resistant part and preparation method thereof
CN109396395A (en) A kind of iron-based composite grinding roll and preparation method thereof
CN103964859A (en) Thin steel strip continuous casting side sealing plate and preparation method thereof
CN109396419A (en) A kind of ceramic phase reinforcement and preparation method thereof
CN109231990A (en) A kind of preparation method of tungsten carbide-diamond composite
CN109550937A (en) A kind of steel-based composite liner and preparation method thereof
AU2016415075B9 (en) ZrO2-Al2O3 Multiphase Ceramic Particle for Wear-Resistance Application, Preparation Method Therefor and Use Thereof
CN109513934A (en) A kind of preparation method of oxide enhancing multilayer potassium steel wear-resistant hammer head
CN105084927A (en) Method for preparing honeycomb shaped ceramic particle prefabricated block

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20190402

RJ01 Rejection of invention patent application after publication