CN109513905B - A kind of preparation method being surface-treated the iron-based composite wear-resistant part of ZTA particle enhanced steel - Google Patents
A kind of preparation method being surface-treated the iron-based composite wear-resistant part of ZTA particle enhanced steel Download PDFInfo
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- CN109513905B CN109513905B CN201811620521.1A CN201811620521A CN109513905B CN 109513905 B CN109513905 B CN 109513905B CN 201811620521 A CN201811620521 A CN 201811620521A CN 109513905 B CN109513905 B CN 109513905B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
- B22D23/04—Casting by dipping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/17—Metallic particles coated with metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/18—Metallic material, boron or silicon on other inorganic substrates
- C23C14/185—Metallic material, boron or silicon on other inorganic substrates by cathodic sputtering
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1851—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material
- C23C18/1872—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material by chemical pretreatment
- C23C18/1886—Multistep pretreatment
- C23C18/1893—Multistep pretreatment with use of organic or inorganic compounds other than metals, first
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
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Abstract
The invention discloses a kind of preparation methods for being surface-treated the iron-based composite wear-resistant part of ZTA particle enhanced steel, are activated to ZTA particle, then using direct current magnetron sputtering process in ZTA particle surface metal lining chromium；Then it is sensitized and is activated, surface is carried out to ZTA particle using chemical plating and is modified, Cr-Ni layers of plating of ZTA particle and Ni powder, Al powder and Cr powder are inserted into graphite jig, vacuum-sintering obtains the precast body with honeycomb structure；Using casting infiltration casting of molten metal, the enhancing steel-based composite wear-resistant part with pinning effect is obtained after cooling.The present invention can optimize ZTA particle and intermetallic combination by the active element that physical vapour deposition (PVD) (PVD) and chemical plating introduce, and interface cohesion is made to be converted into metallurgical bonding, bond strength with higher by mechanical bond.
Description
Technical field
The invention belongs to wear-resistant material preparation technical fields, and in particular to a kind of surface treatment ZTA particle enhanced steel is iron-based
The preparation method of composite wear-resistant part.
Background technique
With China's energy, traffic, basic raw material industry rapid development, the especially implementation of strategy to develop western regions
And the construction of the major projects such as the south water to north, high-speed railway, transfering natural gas from the west to the east, construction material, non-ferrous metal, engineering machinery, fire
The every profession and trades such as power power generation dramatically increase the demand of high-performance anti-friction material.It is single but due to the limitation of metal metallurgy smelting
The performance raising of metal material is limited.Using the material of Integral alloy, although its wearability increases, but its toughness
Also it is greatly reduced simultaneously, reduces the service safety and wearability in impact occasion component.Therefore, it needs novel by constructing
Wear-resistant material theory and optimization preparation process are implacable conflicting to solve homogenous material.
Select with compared with high-fracture toughness ZTA particle as reinforced phase, metallurgical smelting is carried out by way of casting,
To obtain the novel high wear-resistant material with shock resistance.The design of the interface problem of composite material, especially interface optimization
And influence of the interface to performance, it is the key that obtain high-performance metal based composites.Interface is in metal-base composites
Important structure, the performance at interface directly determine the performance of composite material, therefore, should reasonably control interface bond strength.
ZTA particle and it is iron-based between associativity it is poor, pass through casting infiltration prepare composite material in ZTA ceramic particle and iron-based combination
Mode is that single mechanical bond has seriously affected wearing piece and existed so that ZTA ceramic particle is unable to reach expected reinforcing effect
Scale application under harsh actual condition.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of surface treatment
The preparation method of the iron-based composite wear-resistant part of ZTA particle enhanced steel, the wearing composite material of preparation had both had high impact resistance,
In turn ensure the good service safety under harsh operating condition.
The invention adopts the following technical scheme:
A kind of preparation method being surface-treated the iron-based composite wear-resistant part of ZTA particle enhanced steel, carries out at activation ZTA particle
Reason, then using direct current magnetron sputtering process in ZTA particle surface metal lining chromium；Then it is sensitized and is activated, used
Chemical plating carries out surface to ZTA particle and is modified, and Cr-Ni layers of plating of ZTA particle and Ni powder, Al powder and Cr powder are inserted graphite
Mold, vacuum-sintering obtain the precast body with honeycomb structure；Using casting infiltration casting of molten metal, obtain that there is nail after cooling
The enhancing steel-based composite wear-resistant part of bundle effect.
It is impregnated specifically, ZTA particle is put into acetone, subsequent pickling, then successively uses ultrasonic wave and deionized water
ZTA particle drying after cleaning is completed to be activated by cleaning.
Further, soaking time is 10~30min, and the ultrasonic cleaning time is 5~15min, using electric heating constant temperature drum
Wind drying box carries out drying and processing.
Specifically, matrix is not preheated using direct current magnetron sputtering process during ZTA surface metallization chromium,
Settling chamber's initial depression is (2.0~3.0) × 10-2Pa selects the argon gas of purity 99.99% for work protective gas, in work
Make indoor particle and pass through crystallizing field in the form of rotating whereabouts repeatedly, rotates horizontally speed < 80~120m/min, vertical drop speed
< 3~6m/s is spent, ZTA microparticle surfaces obtain chromium film in homogeneous thickness.
Further, plating technique is as follows:
Cation 200~280V of acceleration voltage, 10~15A of sputtering current, 3300~4000W of sputtering power, substrate temperature
About 100 DEG C, operating air pressure (1.0~3.0) × 10-1Pa, Plating times are 0.5~10h.
Further, in 200~300 DEG C of 1~5h of annealing.
Specifically, then being cleaned with deionized water using ZTA 10~30min of particle of acetone ultrasonic cleaning chromium plating, dry
It is dry, it is put into SnCl2Solution carries out sensitized treatment, uses PdCl2Solution is activated, and NaH is then placed in2PO2It is removed in solution
Surface Pd element, the ZTA particle after washes of absolute alcohol are placed in 1~10h of plating in plating solution, and plating temperature is 50~70 DEG C, make
ZTA particle shows core-shell structure.
Further, SnCl2The concentration of solution is 5~15g/L, and the processing time is 10~15min；PdCl2The concentration of solution
For 0.3~0.6g/L, NaH2PO2The concentration of solution is 5~15g/L, and thickness of coating is 2~13 μm.
Specifically, Ni powder, Al powder and Cr powder are uniformly mixed by the mass ratio of 1:1:1, with the constant liter of 8~12 DEG C/min
Warm rate is heated to 1300~1450 DEG C of sintering, keeps the temperature furnace cooling after 1~5h, obtains ZTA particle in the pre- of honeycomb structure
Body processed.
Specifically, molten metal is using chromium nickel low-alloy cast iron, steel alloy, potassium steel or rich chromium cast iron, pouring temperature
1350~1550 DEG C.
Compared with prior art, the present invention at least has the advantages that
A kind of preparation method for being surface-treated the iron-based composite wear-resistant part of ZTA particle enhanced steel of the present invention, passes through physical vapor
It deposits the processing of (PVD) magnetron sputtering and metallurgical bonding, enhancing is formed to ZTA particle surface chromium plating, layers of chrome and ZTA ceramic grain surface
Interfacial bonding property between layers of chrome and ZTA ceramic particle, treated that ZTA ceramic particle carries out chemical plating again for magnetron sputtering
Nickel increases the thickness of transition zone, effectively improves ZTA and base then with the Ni powder, Al powder and Cr powder sintering that are uniformly mixed
The bond strength at interface between body；Wearing piece lamination layer structure has pinning effect, reinforcement is designed as honeycomb, due to stretching
The cylindrical metal matrix for entering ceramic phase reinforcement increases the bonded area and binding force of ceramics with matrix, effectively prevents multiple
It closes the whole of layer to peel off and be crushed, improves the mechanical property of composite material.Meanwhile honeycomb ZTA ceramics are due to " jack to jack adapter shadow effect
Answer " matrix is significantly protected, improve the wearability of composite material.
Further, ZTA ceramic grain surface can be activated by being activated the palladium ion generated, there is coating larger
Adhesive force.
Further, it may insure the good combination of coating and particle using magnetron sputtering plating surface particles, and
Facilitate control thickness of coating.
Further, the stress of chromium film rupture can be eliminated by making annealing treatment 1~5h at 200~300 DEG C.
Further, under the premise of guaranteeing catalytic activity and stability, in order to reduce cost, for containing for precious metals pd
Amount control is in lesser numerical value.
It further, is 1:1:1 to control the product of Ni, Al and Cr for ratio-dependent, due to Ni, the fusing point of Cr is
1455 DEG C, precast body sintering temperature controls within the scope of 1300~1450 DEG C.
Further, chromium nickel low-alloy cast iron, steel alloy, potassium steel and rich chromium cast iron wear-resistant material are the abrasion of current stress
The three classes wear-resistant material that operating condition is most widely used.
In conclusion the present invention can optimize ZTA by the active element that physical vapour deposition (PVD) (PVD) and chemical plating introduce
Grain and intermetallic combination, make interface cohesion be converted into metallurgical bonding, bond strength with higher by mechanical bond.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is that the embodiment of the present invention 1 uses magnetically controlled DC sputtering to ZTA particle surface processing schematic；
Fig. 2 is ZTA ceramic particle microscopic structure after the embodiment of the present invention 1 is surface-treated.
Specific embodiment
A kind of preparation method for being surface-treated the iron-based composite wear-resistant part of ZTA particle enhanced steel of the present invention, comprising the following steps:
S1, ZTA particle is first used to 10~30min of acetone soak, subsequent pickling is then cleaned its acetone using ultrasonic wave
5~15min, deionized water cleaning, treated, and ZTA particle is dried in electric heating constant-temperature blowing drying box；
S2, using the method for magnetically controlled DC sputtering in ZTA surface metallization chromium, in work indoor particle to rotate repeatedly
The form of whereabouts passes through crystallizing field, by rotation speed, run duration of the control ZTA particle in crystallizing field, keeps its surface golden
Categoryization；
Plating specifically:
Cation 200~280V of acceleration voltage, 10~15A of sputtering current, 3300~4000W of sputtering power, substrate temperature
About 100 DEG C, operating air pressure (1.0~3.0) × 10-1Pa, Plating times are 0.5~10h, in order to eliminate answering for chromium film rupture
Power selects 200~300 DEG C of 1~5h of annealing.
Matrix is not preheated, with the progress of sputtering process, substrate temperature can be increased, but be no more than 200 DEG C, be sunk
Product room initial depression is (2.0~3.0) × 10-2Pa, as the temperature rises, air pressure can be varied；
It selects the argon gas of purity 99.99% for work protective gas, rotates the shape of whereabouts repeatedly in work indoor particle
Formula passes through crystallizing field, by rotation speed, run duration of the control ZTA particle in crystallizing field, rotate horizontally speed < 80~
120m/min, vertical drop speed < 3~6m/s, ZTA microparticle surfaces obtain the uniform chromium film of required thickness, keep its surface golden
Categoryization；
S3, the ZTA 10~30min of particle for being cleaned by ultrasonic chromium plating using acetone, are then cleaned with deionized water, dry, put
Enter the stannous chloride (SnCl of 5~15g/L2) solution 10~15min of sensitized treatment, then with the palladium chloride of 0.3~0.6g/L
(PdCl2) solution activation processing, and then in the sodium hypophosphite (NaH of 5~15g/L2PO2) the Pd member on surface is removed in solution
Element, the ZTA particle after washes of absolute alcohol are placed in 1~10h of plating in plating solution, and plating temperature is 50~70 DEG C, utilize constant temperature magnetic
Power blender plating, makes ZTA particle show core-shell structure, and thickness of coating is 2~13 μm；
S4, Cr-Ni layers of pre-plating of ZTA particle is placed in graphite jig with the Ni powder, Al powder and Cr powder being uniformly mixed
In, it is sintered in a vacuum furnace, 1300~1450 DEG C of sintering temperatures is heated to the constant heating rate of 8~12 DEG C/min, protect
1~5h of temperature, furnace cooling obtain the precast body that ZTA particle is in honeycomb structure；
Ni powder, Al powder and Cr powder by 1:1:1 mass ratio be uniformly mixed, using planetary ball mill make Ni powder, Al powder and
Cr powder is uniformly mixed.
The precast body of preparation is fixed on cavity bottom by S5, the position in order to guarantee precast body, and with fixation with steel wire, choosing
Traditional casting infiltration casting of molten metal is selected, the enhancing steel-based composite wear-resistant part for possessing excellent abrasive resistance can be obtained after cooling.
Molten metal uses chromium nickel low-alloy cast iron, steel alloy, potassium steel, rich chromium cast iron or other alloys, and is poured temperature
1350~1550 DEG C of degree selection.
Ceramic particle enhances steel-based composite material and provides one kind for the relatively higher wear resistant products of production cost performance
Effective way.Composite material is significantly improved because introducing reinforced phase, surface hardness, shows excellent abrasion resistance, matrix is again
Provide preferable toughness for composite material, acquisition have both high-intensitive metal, good plasticity and toughness and ceramic material high rigidity,
The wear-resistant composite material of high abrasion advantage shows preferable service performance.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being described and shown in usually here in attached drawing is real
The component for applying example can be arranged and be designed by a variety of different configurations.Therefore, below to the present invention provided in the accompanying drawings
The detailed description of embodiment be not intended to limit the range of claimed invention, but be merely representative of of the invention selected
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment 1
1) ZTA is impregnated into 10min in acetone first, pickling ZTA particle is then cleaned its acetone by ultrasonic wave
5min, deionized water cleaning, treated, and ZTA particle is dried in electric heating constant-temperature blowing drying box；
2) secondly, settling chamber's initial depression is using the method for magnetically controlled DC sputtering in ZTA surface metallization chromium
2.0×10-2, cation acceleration voltage 200V, sputtering current 10A, sputtering power 3300W, operating air pressure 1.0 × 10-1, plating
Time is 0.5h, selects 200 DEG C of annealing 1h, eliminates the stress of chromium film rupture.
3) the ZTA particle of chromium plating then, is cleaned by ultrasonic 10min, deionized water cleaning in acetone, drying is put into 5g/
Stannous chloride (the SnCl of L2) solution sensitized treatment 10min, with the palladium chloride (PdCl of 0.3g/L2) solution activation processing, 5g/L's
Sodium hypophosphite (NaH2PO2) solution is used to remove the Pd element on surface, washes of absolute alcohol is placed in plating solution, utilizes constant temperature
Magnetic stirring apparatus plating 1h, temperature are 50 DEG C, and ZTA particle is made to show core-shell structure, and can measure thickness of coating is 2 μm；
4) Cr-Ni layers of pre-plating of ZTA particle is placed in graphite jig with the Ni powder, Al powder and Cr powder being uniformly mixed
In, it is sintered in a vacuum furnace, is heated to 1300 DEG C of sintering temperature with 8 DEG C/min heating rate, keep the temperature 1h, furnace cooling,
Obtain the precast body that ZTA particle is in honeycomb structure；
5) precast body of preparation is fixed on type chamber specific position, and with fixation with steel wire, traditional casting infiltration is selected to be poured
Molten metal, placing temperature select 1350 DEG C, the composite wear-resistant part that can be obtained after cooling.
Embodiment 2
1) ZTA is impregnated into 20min in acetone first, pickling ZTA particle is then cleaned its acetone by ultrasonic wave
10min, deionized water cleaning, treated, and ZTA particle is dried in electric heating constant-temperature blowing drying box；
2) secondly, settling chamber's initial depression is using the method for magnetically controlled DC sputtering in ZTA surface metallization chromium
2.5×10-2, cation acceleration voltage 240V, sputtering current 13A, sputtering power 3600W, operating air pressure 2.0 × 10-1, plating
Time is 5.5h, selects 250 DEG C of annealing 2.5h, eliminates the stress of chromium film rupture.
3) the ZTA particle of chromium plating then, is cleaned by ultrasonic 20min, deionized water cleaning in acetone, drying is put into
Stannous chloride (the SnCl of 10g/L2) solution sensitized treatment 13min, with the palladium chloride (PdCl of 0.5g/L2) solution activation processing,
Sodium hypophosphite (the NaH of 10g/L2PO2) solution is used to remove the Pd element on surface, washes of absolute alcohol is placed in plating solution, benefit
With constant temperature blender with magnetic force plating 6h, 60 DEG C of plating temperature, ZTA particle is made to show core-shell structure, can measure thickness of coating is 8
μm；
4) Cr-Ni layers of pre-plating of ZTA particle is placed in graphite jig with the Ni powder, Al powder and Cr powder being uniformly mixed
In, it is sintered in a vacuum furnace, is heated to 1400 DEG C of sintering temperature with 10 DEG C/min heating rate, keep the temperature 3h, furnace cooling,
Obtain the precast body that ZTA particle is in honeycomb structure；
5) precast body of preparation is fixed on type chamber specific position, and with fixation with steel wire, traditional casting infiltration is selected to be poured
Molten metal, placing temperature select 1450 DEG C, the composite wear-resistant part that can be obtained after cooling.
Embodiment 3
1) ZTA is impregnated into 30min in acetone first, pickling ZTA particle is then cleaned its acetone by ultrasonic wave
15min, deionized water cleaning, treated, and ZTA particle is dried in electric heating constant-temperature blowing drying box；
2) secondly, settling chamber's initial depression is using the method for magnetically controlled DC sputtering in ZTA surface metallization chromium
3.0×10-2, cation acceleration voltage 280V, sputtering current 15A, sputtering power 4000W, operating air pressure 3.0 × 10-1, plating
Time is 10h, selects 300 DEG C of annealing 5h, eliminates the stress of chromium film rupture.
3) the ZTA particle of chromium plating then, is cleaned by ultrasonic 30min, deionized water cleaning in acetone, drying is put into
Stannous chloride (the SnCl of 15g/L2) solution sensitized treatment 15min, with the palladium chloride (PdCl of 0.6g/L2) solution activation processing,
Sodium hypophosphite (the NaH of 15g/L2PO2) solution is used to remove the Pd element on surface, washes of absolute alcohol is placed in plating solution, benefit
With constant temperature blender with magnetic force plating 10h, ZTA particle is made to show core-shell structure, can measure thickness of coating is 13 μm；
4) Cr-Ni layers of pre-plating of ZTA particle is placed in graphite jig with the Ni powder, Al powder and Cr powder being uniformly mixed
In, it is sintered in a vacuum furnace, is heated to 1450 DEG C of sintering temperature with 12 DEG C/min heating rate, keep the temperature 5h, furnace cooling,
Obtain the precast body that ZTA particle is in honeycomb structure；
5) precast body of preparation is fixed on type chamber specific position, and with fixation with steel wire, traditional casting infiltration is selected to be poured
Molten metal, placing temperature select 1550 DEG C, the composite wear-resistant part that can be obtained after cooling.
Embodiment 4
1) ZTA is impregnated into 18min in acetone first, pickling ZTA particle is then cleaned its acetone by ultrasonic wave
12min, deionized water cleaning, treated, and ZTA particle is dried in electric heating constant-temperature blowing drying box；
2) secondly, settling chamber's initial depression is using the method for magnetically controlled DC sputtering in ZTA surface metallization chromium
2.3×10-2, cation acceleration voltage 220V, sputtering current 12A, sputtering power 3800W, operating air pressure 2.6 × 10-1, plating
Time is 2h, selects 280 DEG C of annealing 2h, eliminates the stress of chromium film rupture.
3) the ZTA particle of chromium plating then, is cleaned by ultrasonic 22min, deionized water cleaning in acetone, drying is put into 8g/
Stannous chloride (the SnCl of L2) solution sensitized treatment 11min, with the palladium chloride (PdCl of 0.4g/L2) solution activation processing 15min,
Sodium hypophosphite (the NaH of 12g/L2PO2) solution is used to remove the Pd element on surface, washes of absolute alcohol is placed in plating solution, benefit
With constant temperature blender with magnetic force plating 8h, plating temperature is 65 DEG C, so that ZTA particle is shown core-shell structure, can measure thickness of coating
It is 12 μm；
4) Cr-Ni layers of pre-plating of ZTA particle is placed in graphite jig with the Ni powder, Al powder and Cr powder being uniformly mixed
In, it is sintered in a vacuum furnace, is heated to 1400 DEG C of sintering temperature with 10 DEG C/min heating rate, keep the temperature 2h, furnace cooling,
Obtain the precast body that ZTA particle is in honeycomb structure；
5) precast body of preparation is fixed on type chamber specific position, and with fixation with steel wire, traditional casting infiltration is selected to be poured
Molten metal, pouring temperature select 1400 DEG C, the composite wear-resistant part that can be obtained after cooling.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is that the embodiment of the present invention 1 shows the processing of ZTA particle surface using magnetically controlled DC sputtering
It is intended to, as seen from the figure, a large amount of plasmas is generated around target, make the uniform plating Cr coating of ZTA particle surface, pass through control
Plating time ensures thickness of coating.Surface plating Cr ZTA particle on continue Electroless Plating Ni, compare 4 embodiments it is found that with
The extension of electroless plating time, thickness of coating progressive additive reach 12 μm in plating 6h thickness of coating, 8h coating be 13 μm,
Therefore, under the premise of guaranteeing thickness of coating, in order to reduce cost, 6h is the optimum chemical plating time.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (6)
1. a kind of preparation method for being surface-treated the iron-based composite wear-resistant part of ZTA particle enhanced steel, which is characterized in that ZTA particle
It is activated, then using direct current magnetron sputtering process in ZTA particle surface metal lining chromium, using direct current magnetron sputtering process
During ZTA surface metallization chromium, matrix is not preheated, settling chamber's initial depression is (2.0~3.0) × 10- 2Pa selects the argon gas of purity 99.99% for work protective gas, is worn in the form of rotating whereabouts repeatedly in work indoor particle
Crystallizing field is crossed, horizontal rotation speed is 80~120m/min, and vertical drop speed is 3~6m/s, and ZTA microparticle surfaces obtain thick
Spend uniform chromium film；Then it is sensitized and is activated, surface is carried out to ZTA particle using chemical plating and is modified, by ZTA particle
It is put into 10~30min of immersion in acetone, subsequent pickling is then successively cleaned using ultrasonic wave and deionized water, ultrasonic cleaning
Time is 5~15min, completes to be activated by the ZTA particle drying after cleaning using electric heating constant-temperature blowing drying box, be put into
SnCl2Solution carries out sensitized treatment, uses PdCl2Solution is activated, and NaH is then placed in2PO2Surface Pd is removed in solution
Element, the ZTA particle after washes of absolute alcohol are placed in 1~10h of plating in plating solution, and plating temperature is 50~70 DEG C, make ZTA particle
Core-shell structure is shown, Cr-Ni layers of plating of ZTA particle and Ni powder, Al powder and Cr powder are inserted into graphite jig, vacuum-sintering
Obtain the precast body with honeycomb structure；Using casting infiltration casting of molten metal, the enhancing with pinning effect is obtained after cooling
Steel-based composite wear-resistant part.
2. the preparation method of the surface treatment iron-based composite wear-resistant part of ZTA particle enhanced steel according to claim 1, feature
It is, plating technique is as follows:
Cation 200~280V of acceleration voltage, 10~15A of sputtering current, 3300~4000W of sputtering power, substrate temperature are about
100 DEG C, operating air pressure (1.0~3.0) × 10-1Pa, Plating times are 0.5~10h.
3. the preparation method of the surface treatment iron-based composite wear-resistant part of ZTA particle enhanced steel according to claim 2, feature
It is, after the completion of plating, makes annealing treatment the stress that 1~5h is used to eliminate the rupture of chromium film at 200~300 DEG C.
4. the preparation method of the surface treatment iron-based composite wear-resistant part of ZTA particle enhanced steel according to claim 1, feature
It is, SnCl2The concentration of solution is 5~15g/L, and the processing time is 10~15min；PdCl2The concentration of solution is 0.3~0.6g/
L, NaH2PO2The concentration of solution is 5~15g/L, and thickness of coating is 2~13 μm.
5. the preparation method of the surface treatment iron-based composite wear-resistant part of ZTA particle enhanced steel according to claim 1, feature
It is, Ni powder, Al powder and Cr powder is uniformly mixed by the mass ratio of 1:1:1, is heated with the constant heating rate of 8~12 DEG C/min
It is sintered to 1300~1450 DEG C, keeps the temperature furnace cooling after 1~5h, obtain the precast body that ZTA particle is in honeycomb structure.
6. the preparation method of the surface treatment iron-based composite wear-resistant part of ZTA particle enhanced steel according to claim 1, feature
It is, molten metal uses chromium nickel low-alloy cast iron, steel alloy, potassium steel or rich chromium cast iron, and pouring temperature is 1350~1550 DEG C.
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