CN110588091B - Super wear-resistant steel-ceramic composite wear-resistant lining plate and forming method thereof - Google Patents
Super wear-resistant steel-ceramic composite wear-resistant lining plate and forming method thereof Download PDFInfo
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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
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/08—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal
- B22D19/085—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal of anti-frictional metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/003—Pressing by means acting upon the material via flexible mould wall parts, e.g. by means of inflatable cores, isostatic presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/041—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
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- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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Abstract
The invention relates to a super wear-resistant steel-ceramic composite wear-resistant lining plate and a forming method thereof. The forming method comprises the following steps: 1) preparing ZTA ceramic particles; 2) preparing a honeycomb ceramic preform; 3) casting and molding; 4) and (6) heat treatment. The invention adopts a unique special composite structure of steel and ceramic, the impact-resistant lining plate provides the advantages of the steel and the ceramic, the ceramic has high wear resistance and toughness of the steel, and the impact-resistant lining plate can cope with medium and high strength impact of materials. The lining plate has the advantages of super wear resistance, high cost performance, simplicity and convenience in installation and wide adaptability.
Description
Technical Field
The invention relates to mineral processing of mines, in particular to a super wear-resistant steel-ceramic composite wear-resistant lining plate and a forming method thereof.
Background
In general, in mineral processing, bulk material in ore is transported by a belt from one station to another transfer station, and the wear rate of the equipment, especially chutes and hoppers, is very important because the ore itself is irregular due to its large mass and size, and the processing equipment reaches the use limit. Replacement of worn-out equipment represents a significant proportion of maintenance costs. Typical wear protection consists mainly of wear resistant lining plates or wear resistant steel plates. Through the fixing of bolt or weld directly on equipment, different wear-resisting welt is used in different industrial and mining, mainly depends on some factors: such as the type of ore, the blanking height, the block size of the material and the impacted angle. Each wear resistant liner has its own advantages and disadvantages, and typically has a wear resistant steel plate, rubber ceramic composite liner. The wear-resistant steel lining plate has high density, heavy weight and high hardness and is very expensive. The wear-resistant ceramic lining plate is difficult to be arranged on the chute, and a special adhesive is needed or the wear-resistant ceramic lining plate is made into a ceramic rubber integrated vulcanized lining plate. However, under the impact of high drop height and large ore volume, the ceramic is easy to break or fall off.
Chinese patent CN206679635U discloses a steel-ceramic composite super wear-resistant lining board, which comprises a connecting component, a whole bottom board made of high-chromium cast iron, and a cone ceramic block with a hemispherical top, wherein holes matched with the cone ceramic block are distributed on the bottom board, and the holes are big end to end. The lining plate has the advantages of wear resistance, impact resistance, no material accumulation, light dead weight, convenience in replacement, high safety coefficient, high comprehensive cost performance and the like. However, the impact surface of the liner plate with the structure is a combined stress surface of the high-chromium cast iron body and the cone ceramic block, so that the problems that the high-hardness index cannot be met, the plastic deformation is easy to occur, the wear resistance is not strong and the like due to stress of the all-steel liner plate can be solved to a certain extent, but under the impact of long-term use and gravity, the high-chromium cast iron body and the cone ceramic block are deformed in different degrees and different times, the ceramic block is easy to crack and fall off and the like, so that the wear resistance is reduced, and the liner plate is influenced to exert the due functions.
Disclosure of Invention
The invention aims to improve and innovate the defects and problems in the background technology and provide a super wear-resistant steel-ceramic composite wear-resistant lining plate which has impact resistance and super wear resistance and can prolong the service life.
The invention also aims to provide a method for forming the lining plate.
The lining plate is fixed on a workpiece through a fastener, and comprises a ZTA ceramic wear-resistant layer which is uniformly distributed on the surface of the lining plate and a high-chromium cast iron layer which is positioned at the bottom of the lining plate and is cast with the ZTA ceramic wear-resistant layer into a whole.
Preferably, the ZTA ceramic wear-resistant layer is evenly provided with through honeycomb holes, and adjacent rows of honeycomb holes are arranged in a staggered manner. The honeycomb holes can eliminate the bearing capacity of part of the wear-resistant layer, meanwhile, the honeycomb holes are also fastener mounting holes, the dispersed impact force which can be more uniform can be achieved through the staggered arrangement, and the service life of the wear-resistant layer is prolonged.
The forming method of the lining plate comprises the following steps:
1. preparing ZTA ceramic particles: the ZTA ceramic is pulverized and granulated to obtain ceramic particles with a particle size of 30-120 nm; then dry pressing the ceramic powder into blocks by using an isostatic pressing machine and then presintering, wherein the presintering temperature is 1100-1200 ℃; then crushing, screening ZTA ceramic with the particle size of 1-3mm, and then sintering at high temperature, wherein the sintering temperature is 1600-1650 ℃, obtaining ZTA ceramic particles with irregular shapes for later use.
2. Preparing a honeycomb ceramic preform: and adding a high-temperature-resistant adhesive into the ZTA ceramic particles prepared in the previous step, mixing to uniformly cover the surfaces of the ceramic particles with the adhesive, filling the mixture into a mold with a honeycomb inner cavity, compacting, curing, and taking out the obtained honeycomb ceramic preform for later use.
3. Casting molding: fixing the prepared honeycomb ceramic preform at a corresponding sand mold position on the surface of a workpiece through a fastener, wherein the distance between the honeycomb ceramic preform and the workpiece is a high-chromium cast iron pouring space; after the die is closed, gravity is adopted to pour high-chromium cast iron metal liquid, the pouring temperature is 1450-.
4. And (3) heat treatment: carrying out heat treatment on the composite material formed in the previous step to finally solidify, wherein the quenching temperature is 980-.
Preferably, the volume fraction of the ZTA ceramic particles in the composite material is 48-58%. The use of the ceramic particles in the proportion can ensure that the interface of the particles and the matrix is well combined, the material tissue is compact, and the defects of looseness and air holes are avoided.
Preferably, the fastener is fixed with the workpiece through honeycomb holes in the honeycomb ceramic prefabricated body, the fastener is a countersunk head bolt, a ceramic cover is filled in a counter bore of the countersunk head bolt, the top surface of the ceramic cover is horizontal to the top surface of the honeycomb ceramic prefabricated body, and the ceramic cover is formed by bonding ZTA ceramic particles. The porcelain cover is used for covering the bolt, so that the bolt is prevented from being contacted when materials are conveyed, the stability of the lining plate is ensured, and the service life is prolonged. And the components of the ceramic cover and the components of the honeycomb ceramic prefabricated body are the same, so that the integrity of the wear-resistant layer on the surface of the lining plate is better ensured.
The invention has the advantages and beneficial effects that:
the invention adopts a unique special composite structure of steel and ceramic, the impact-resistant lining plate provides the advantages of the steel and the ceramic, the ceramic has high wear resistance and toughness of the steel, and the impact-resistant lining plate can cope with medium and high strength impact of materials. The lining plate has the advantages of super wear resistance, high cost performance, simplicity and convenience in installation and wide adaptability. As the ZTA ceramic particle preform is completely penetrated by the high-chromium cast iron liquid, the volume fraction of the ceramic particles in the composite material is reasonable, the combination of the particles and a matrix interface is good, the material structure is compact, and the defects of looseness and air holes do not exist. And the ceramic can not fall off in a high-temperature environment, and the ceramic can not be cracked under the high fall impact of ores. The composite ceramic lining plate shows excellent wear resistance under the condition of three-body abrasive wear.
Drawings
Fig. 1 is a schematic front view of the lining board of the present invention.
Fig. 2 is a schematic sectional structure view of fig. 1.
FIG. 3 is a comparison of the state of ZTA powder and ZTA granules in the process of producing ZTA ceramic granules according to the present invention.
FIG. 4 is a schematic front view of the structure of the honeycomb ceramic preform of the present invention.
Fig. 5 is a schematic view of the stepped cross-sectional structure of fig. 4 along a honeycomb cell.
FIG. 6 is a schematic structural view of the front view of the formation of the ZTA ceramic wear-resistant layer and the high-chromium cast iron layer of the present invention.
Fig. 7 is a schematic sectional view of fig. 6.
Description of the figures:
1. the ceramic material comprises a ZTA ceramic wear-resistant layer, 1-1 parts of honeycomb holes, 2 parts of a high-chromium cast iron layer, 3 parts of countersunk head bolts, 4 parts of a ceramic cover.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "disposed" or "connected" to another element, it can be directly disposed or connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1:
1. preparing ZTA ceramic particles: adopts ZTA ceramic, and the ceramic particle size is 50-80nm after pulverizing and granulating. Dry pressing the ceramic powder into blocks by an isostatic pressing machine, and then pre-sintering at 1150-1170 ℃. Then crushing, screening ZTA ceramic particles with the particle size of 1-3mm, and sintering at high temperature of 1610 ℃ and 1630 ℃ to obtain the ZTA ceramic particles with irregular shapes, which is shown in figure 3.
2. And (3) detection of ZTA ceramic particles: the hardness of ZTA ceramic particles was measured by MH-5C microhardness instrument, the bending strength was measured by three points with span of 30mm (bending method), and the fracture toughness KIC was measured by indentation method, as shown in the following table.
Physical and mechanical properties of ZTA ceramics
3. Preparing a honeycomb ceramic preform: mixing ZTA ceramic particles with conventional amount of high temperature resistant adhesive to uniformly cover the surface of the ceramic particles, filling into a mold with honeycomb cavity, compacting, curing, and taking out to obtain corresponding honeycomb ceramic preform, as shown in FIGS. 4 and 5.
4. And (3) casting molding: the casting matrix is made of high-chromium cast iron, and the ZTA ceramic particle reinforced high-chromium cast iron composite material is prepared by adopting a casting infiltration method, wherein the using volume fraction of the ZTA ceramic particles in the composite material is 50%. The specific operation steps are as follows:
firstly, fixing the prefabricated body prepared in the previous step on the surface of a wear-resistant workpiece at the corresponding position of a sand mold.
Secondly, after the die is closed, high-chromium cast iron metal liquid is poured by gravity, the pouring temperature is 1450-1475 ℃, the high-chromium cast iron metal liquid is cast and infiltrated into the prefabricated body to obtain the ceramic particle locally-reinforced high-chromium cast iron composite material, a wear-resistant layer which is uniformly distributed by ZTA ceramic is formed on the surface of the lining plate, and the bottom base layer is made of high-chromium cast iron, as shown in figures 6 and 7.
Thirdly, heat treatment after pouring of the steel-ceramic composite wear-resistant lining plate: the quenching temperature is 1000-1020 ℃, and the tempering temperature is 440-455 ℃.
As shown in fig. 1 and 2, the super wear-resistant steel-ceramic composite wear-resistant lining plate prepared by the method is fixed on a workpiece through a fastener, and comprises a ZTA ceramic wear-resistant layer 1 which is a honeycomb ceramic preform and is uniformly distributed on the surface of the lining plate, and a high-chromium cast iron layer 2 which is positioned at the bottom of the lining plate and is integrally cast with the ZTA ceramic wear-resistant layer 1. Wherein: the ZTA ceramic wear-resistant layer 1 is uniformly provided with through honeycomb holes 1-1, and adjacent rows of honeycomb holes are arranged in a staggered manner.
Furthermore, the fastener is fixed with a workpiece through honeycomb holes 1-1 on the ZTA ceramic wear-resistant layer 1, and the fastener is a countersunk head bolt 3. The ceramic cover 4 is filled in the counter bore of the countersunk head bolt 3, the top surface of the ceramic cover 4 is horizontal to the top surface of the ZTA ceramic wear-resistant layer 1, the ceramic cover 4 is formed by bonding ZTA ceramic particles, and the specific formation of the ceramic cover is basically the same as that in the step 3 and is omitted here.
Example 2:
1. preparing ZTA ceramic particles: the ceramic particles reach 60-100nm after adopting ZTA ceramic to be pulverized and granulated. Dry pressing the ceramic powder into blocks by an isostatic pressing machine, and then pre-sintering at 1140-1165 ℃. Then crushing, screening ZTA ceramic particles with the particle size of 1-3mm, and sintering at high temperature of 1630-1645 ℃ to obtain the ZTA ceramic particles with irregular shapes, which is shown in figure 3.
2. And (3) detection of ZTA ceramic particles: the hardness of ZTA ceramic particles was measured by MH-5C microhardness instrument, the bending strength was measured by three points with span of 30mm (bending method), and the fracture toughness KIC was measured by indentation method, as shown in the following table.
Physical and mechanical properties of ZTA ceramics
3. Preparing a honeycomb ceramic preform: mixing ZTA ceramic particles with conventional amount of high temperature resistant adhesive to uniformly cover the surface of the ceramic particles, filling into a mold with honeycomb cavity, compacting, curing, and taking out to obtain corresponding honeycomb ceramic preform, as shown in FIGS. 4 and 5.
4. And (3) casting molding: the casting matrix is made of high-chromium cast iron, the ZTA ceramic particle reinforced high-chromium cast iron composite material is prepared by adopting a casting permeation method, and the using volume fraction of the ZTA ceramic particles in the composite material is 53%. The specific operation steps are as follows:
firstly, fixing the prefabricated body prepared in the previous step on the surface of a wear-resistant workpiece at the corresponding position of a sand mold.
After the die is closed, high-chromium cast iron metal liquid is poured by gravity, the pouring temperature is 1455-1480 ℃, the high-chromium cast iron metal liquid is cast and infiltrated into the prefabricated body to obtain the ceramic particle locally-reinforced high-chromium cast iron composite material, a wear-resistant layer is uniformly distributed on the surface of the lining plate by ZTA ceramic, and the bottom base layer is made of high-chromium cast iron, as shown in figures 6 and 7.
Thirdly, heat treatment after pouring of the steel-ceramic composite wear-resistant lining plate: the quenching temperature is 990-1000 ℃, and the tempering temperature is 420-450 ℃.
As shown in fig. 1 and 2, the super wear-resistant steel-ceramic composite wear-resistant lining plate prepared by the method is fixed on a workpiece through a fastener, and comprises a ZTA ceramic wear-resistant layer 1 which is a honeycomb ceramic preform and is uniformly distributed on the surface of the lining plate, and a high-chromium cast iron layer 2 which is positioned at the bottom of the lining plate and is integrally cast with the ZTA ceramic wear-resistant layer 1. Wherein: the ZTA ceramic wear-resistant layer 1 is uniformly provided with through honeycomb holes 1-1, and adjacent rows of honeycomb holes are arranged in a staggered manner.
Further, the fastener is fixed with a workpiece through honeycomb holes 1-1 in the ZTA ceramic wear-resistant layer 1, and the fastener is a countersunk head bolt 3. The ceramic cover 4 is filled in the counter bore of the countersunk head bolt 3, the top surface of the ceramic cover 4 is horizontal to the top surface of the ZTA ceramic wear-resistant layer 1, the ceramic cover 4 is formed by bonding ZTA ceramic particles, and the specific formation of the ceramic cover is basically the same as that in the step 3 and is omitted here.
Example 3:
1. preparing ZTA ceramic particles: the ceramic particles reach 75-115nm after adopting ZTA ceramic to be pulverized and granulated. Dry pressing the ceramic powder into blocks by an isostatic pressing machine, and then pre-sintering at 1170-1195 ℃. Then crushing, screening ZTA ceramic particles with the particle size of 1-3mm, and sintering at high temperature, wherein the sintering temperature is 1625-.
2. And (3) detection of ZTA ceramic particles: the hardness of ZTA ceramic particles was measured by MH-5C microhardness instrument, the bending strength was measured by three points with span of 30mm (bending method), and the fracture toughness KIC was measured by indentation method, as shown in the following table.
Physical and mechanical properties of ZTA ceramics
3. Preparing a honeycomb ceramic preform: mixing ZTA ceramic particles with conventional amount of high temperature resistant adhesive to uniformly cover the surface of the ceramic particles, filling into a mold with honeycomb cavity, compacting, curing, and taking out to obtain corresponding honeycomb ceramic preform, as shown in FIGS. 4 and 5.
4. And (3) casting molding: the casting matrix is made of high-chromium cast iron, and the ZTA ceramic particle reinforced high-chromium cast iron composite material is prepared by adopting a casting infiltration method, wherein the using volume fraction of the ZTA ceramic particles in the composite material is 57%. The specific operation steps are as follows:
firstly, fixing the prefabricated body prepared in the previous step on the surface of a wear-resistant workpiece at the corresponding position of a sand mold.
Secondly, after the die is closed, gravity is adopted to pour high-chromium cast iron metal liquid, the pouring temperature is 1470-1495 ℃, the high-chromium cast iron metal liquid is cast and infiltrated into the prefabricated body to obtain the ceramic particle locally-reinforced high-chromium cast iron composite material, a wear-resistant layer which is uniformly distributed by ZTA ceramic is formed on the surface of the lining plate, and the bottom base layer is made of high-chromium cast iron, as shown in figures 6 and 7.
Thirdly, heat treatment after pouring of the steel-ceramic composite wear-resistant lining plate: the quenching temperature is 1000-.
As shown in fig. 1 and 2, the super wear-resistant steel-ceramic composite wear-resistant lining plate prepared by the method is fixed on a workpiece through a fastener, and comprises a ZTA ceramic wear-resistant layer 1 which is a honeycomb ceramic preform and is uniformly distributed on the surface of the lining plate, and a high-chromium cast iron layer 2 which is positioned at the bottom of the lining plate and is integrally cast with the ZTA ceramic wear-resistant layer 1. Wherein: the ZTA ceramic wear-resistant layer 1 is uniformly provided with through honeycomb holes 1-1, and adjacent rows of honeycomb holes are arranged in a staggered manner.
Furthermore, the fastener is fixed with a workpiece through honeycomb holes 1-1 on the ZTA ceramic wear-resistant layer 1, and the fastener is a countersunk head bolt 3. The ceramic cover 4 is filled in the counter bore of the countersunk head bolt 3, the top surface of the ceramic cover 4 is horizontal to the top surface of the ZTA ceramic wear-resistant layer 1, the ceramic cover 4 is formed by bonding ZTA ceramic particles, and the specific formation of the ceramic cover is basically the same as that in the step 3 and is omitted here.
The embodiments of the present invention are described only for the preferred embodiments of the present invention, and not for the limitation of the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall into the protection scope of the present invention, and the technical content of the present invention which is claimed is fully set forth in the claims.
Claims (3)
1. A forming method of a super wear-resistant steel-ceramic composite wear-resistant lining plate is characterized by comprising the following steps:
the super wear-resistant steel-ceramic composite wear-resistant lining plate comprises a ZTA ceramic wear-resistant layer which is positioned on the surface of the lining plate and is uniformly distributed, and a high-chromium cast iron layer which is positioned at the bottom of the lining plate and is integrally cast with the ZTA ceramic wear-resistant layer, wherein the ZTA ceramic wear-resistant layer is uniformly provided with through honeycomb holes, and adjacent rows of honeycomb holes are arranged in a staggered manner;
the forming method of the super wear-resistant steel-ceramic composite wear-resistant lining plate comprises the following steps:
1) preparing ZTA ceramic particles: the ZTA ceramic is pulverized and granulated to obtain ceramic particles with a particle size of 30-120 nm; then, dry-pressing the ceramic powder into blocks by using an isostatic pressing machine, and then pre-sintering at the pre-sintering temperature of 1100-1200 ℃; then crushing, screening ZTA ceramic with the particle size of 1-3mm, and then sintering at high temperature, wherein the sintering temperature is 1600-1650 ℃, obtaining ZTA ceramic particles with irregular shapes for later use;
2) preparing a honeycomb ceramic preform: adding a high-temperature-resistant adhesive into the ZTA ceramic particles prepared in the previous step, mixing to enable the adhesive to uniformly cover the surfaces of the ceramic particles, then filling the ceramic particles into a mold with a honeycomb inner cavity, compacting, curing, and taking out the obtained honeycomb ceramic preform for later use;
3) and (3) casting molding: fixing the prepared honeycomb ceramic preform at a corresponding sand mold position on the surface of a workpiece through a fastener, wherein the distance between the honeycomb ceramic preform and the workpiece is a high-chromium cast iron pouring space; after the die is closed, gravity is adopted to pour high-chromium cast iron metal liquid, the pouring temperature is 1450-;
4) and (3) heat treatment: carrying out heat treatment on the composite material formed in the previous step to finally solidify, wherein the quenching temperature is 980-.
2. The method for forming the ultra-wear-resistant steel-ceramic composite wear-resistant lining plate according to claim 1, wherein the ZTA ceramic particles are 48-58% by volume of the composite material.
3. The method for forming the ultra-wear-resistant steel-ceramic composite wear-resistant lining plate according to claim 1, wherein the fastener is fixed with a workpiece through honeycomb holes in a honeycomb ceramic preform, the fastener is a countersunk head bolt, a ceramic cover is filled in a counter bore of the countersunk head bolt, the top surface of the ceramic cover is horizontal to the top surface of the honeycomb ceramic preform, and the ceramic cover is formed by bonding ZTA ceramic particles.
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| CN111318674A (en) * | 2020-03-26 | 2020-06-23 | 松山湖材料实验室 | Preparation method of ceramic-metal composite wear-resistant material |
| CN114570483B (en) * | 2022-02-08 | 2023-05-05 | 徐州徐工矿业机械有限公司 | Martensitic/bainitic steel-based ZTA ceramic composite material impact crusher plate hammer and manufacturing method thereof |
| CN114621776B (en) * | 2022-03-24 | 2023-05-16 | 武汉钢铁有限公司 | Coke tank bottom gate lining plate compounded with high-temperature ceramic piece and preparation method |
| CN115518736A (en) * | 2022-06-30 | 2022-12-27 | 华能海南发电股份有限公司东方电厂 | Cermet grinding roller sleeve, grinding disc lining plate and casting method |
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