CN109338206A - A kind of preparation method of holey ceramics enhancing steel-based composite breaking wall - Google Patents
A kind of preparation method of holey ceramics enhancing steel-based composite breaking wall Download PDFInfo
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- CN109338206A CN109338206A CN201811210154.8A CN201811210154A CN109338206A CN 109338206 A CN109338206 A CN 109338206A CN 201811210154 A CN201811210154 A CN 201811210154A CN 109338206 A CN109338206 A CN 109338206A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
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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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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
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- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a kind of preparation methods of holey ceramics enhancing steel-based composite breaking wall, by TiB2Powder is added in deionized water after mixing with additive and obtained ceramic slurry suspension is sufficiently stirred；Organic Foam Material is immersed in ceramic slurry, holey TiB will be obtained through high temperature sintering after the Organic Foam Material drying after dipping2Precast body；Finally using technology of infiltration casting to the holey TiB of preparation2Precast body is poured steel substrate material metal liquid, and holey ceramics enhancing steel-based composite breaking wall is obtained after cooling and demolding.The compound composite breaking wall rub resistance and heat-resisting quantity prepared by the method improves, and reinforced phase and substrate combinating strength are high, and intensity and the toughness enhancing of crushing wall, service life improve.
Description
Technical field
The invention belongs to wear-resistant material preparation technical fields, and in particular to a kind of holey ceramics enhancing steel-based is compound
The preparation method of crushing wall.
Background technique
Gyratory crusher suitable for metallurgy, build, build the road, raw material is broken chemistry and silicate industry, according to broken
The difference and product particle of principle are of different sizes, and are divided into many models.Cone crushing than big, high-efficient, low energy consumption,
Product granularity is uniform, be suitble in broken and fine crushing various ores, rock.When gyratory crusher works, the rotation of motor passes through skin
Belt wheel or shaft coupling, drive shaft of cone crusher and gyratory crusher conus portion eccentric bushing it is forced to move under make around a fixed point
Swing campaign.To make crushing head crushing wall when and close to when and leave the rolled mortar wall surface being packed in adjusting sleeve,
Impact ore constantly in crusher chamber, squeeze and flecition and realize the broken of ore.Therefore, crushing wall is circular cone
The main stressed member of crusher just has to the abrasion resistance properties for improving crushing wall to improve the service life of crusher.
Existing crusher is mainly prepared using whole cast iron materials preparation or composite material.There are rub resistances
The disadvantages such as difference, intensity, hardness are low, and boundary strength is low between reinforced phase and matrix.
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 holey
The preparation method of ceramics enhancing steel-based composite breaking wall, makes the abrasive wear resistant weld deposit performance of composite material be further enhanced.
The invention adopts the following technical scheme:
A kind of preparation method of holey ceramics enhancing steel-based composite breaking wall, by TiB2Powder is mixed with additive
It is added in deionized water afterwards and obtained ceramic slurry is sufficiently stirred, TiB2 powder accounts for the 60~80% of ceramic slurry gross mass, addition
Agent accounts for the 10~25% of ceramic slurry gross mass, and deionized water accounts for 10~30%；Organic Foam Material is immersed in ceramic slurry,
Holey TiB will be obtained through high temperature sintering after Organic Foam Material drying after dipping2Precast body；Finally use technology of infiltration casting pair
The holey TiB of preparation2Precast body is poured steel substrate material metal liquid, and the increasing of holey ceramics is obtained after cooling and demolding
Strong steel-based composite breaking wall.
Optionally, additive includes ferrochrome powder, ammonium citrate, carboxymethyl cellulose and silica solution.
Further, ferrochrome powder accounts for the 60~80% of additive quality, and ammonium citrate accounts for the 3~8% of additive quality, carboxylic
Methylcellulose accounts for the 4~8% of additive quality, and silica solution accounts for the 5~25% of additive quality.
Optionally, Organic Foam Material is flexibel polyurethane, takes out and squeezes after impregnating 1~5min in ceramic slurry suspension
Additional size out.
Further, the aperture of flexibel polyurethane is 5~50PPI.
Optionally, high temperature sintering is handled specifically: rises to 600~800 DEG C from room temperature with the heating rate of 1~2 DEG C/min
And 30~60min is kept the temperature, 1000~1200 DEG C then are warming up to the heating rate of 5~10 DEG C/min, then with 2~5 DEG C/min
Heating rate rise to 1550~1600 DEG C of 1~3h of sintering, furnace cooling obtains holey TiB2Precast body.
Optionally, molten metal is the chromium alloy cast iron for manufacturing wear-resistant material.
Further, molten metal include the following: by mass percentage Cr account for 15%, C account for 3.1~3.2%, Mo account for 1~
1.5%, Si account for 0.5~1.0%, Mn and account for 0.6~0.7%, and surplus is Fe and other inevitable impurity.
Compared with prior art, the present invention at least has the advantages that
A kind of preparation method of holey ceramics enhancing steel-based composite breaking wall of the present invention, prepares porous ceramics enhancing
The reinforced phase of metal-base composites is selected as TiB2Ceramics, enhancement method are tridimensional network enhancing, TiB2Ceramics and other
Enhancing ceramic phase has the characteristics that high-melting-point, high rigidity, high stability, high antioxidant and wear-resistant than same；Secondly, TiB2
Ceramics are good with the wetability of iron liquid, will not directly react, can form the interface being well combined；In addition, TiB2Have with iron
The thermal expansion coefficient to match is not easy to form crackle in composite material preparation process.In addition, the enhancement method of reinforcement is three
Reticular structure enhancing is tieed up, matrix and reinforcement are continuous structure, and the two mutually constrains, and are supported each other, enhance gold with particle
Metal-matrix composite material, which is compared, not to be had to consider the problems of that reinforced phase is uniformly distributed in matrix, with fiber-reinforced metal matrix composite
There is isotropism compared to such composite material.It is mainly Fe and TiB in the holey precast body prepared in the present invention2, two
Person is diffusion bond.
Further, TiB2 powder accounts for the 60~80% of ceramic slurry gross mass, and additive accounts for ceramic slurry gross mass
10~25%, deionized water accounts for 10~30%, and the solid content of ceramic slurry is higher at this time, is conducive to keep higher extension when dipping
Slurry amount.
Further, the addition of ferrochrome powder is that it is certain to guarantee that sintered porous ceramics has as high temperature sintering auxiliary agent
Intensity；The addition of ammonium citrate is to guarantee that powder is uniformly dispersed in the slurry as slurry dispersing agent, will not quickly reunite or
Sedimentation；The addition of carboxymethyl cellulose is as rheological agent to guarantee that it is uniform can to flow into foam Interior realization for slurry when impregnating
Hanging, can quickly lose flowability in the short time again when squeezing out additional size makes slurry curing；The addition of silica solution is as low
Warm sintering aid, to guarantee that porous ceramics is able to maintain its skeleton structure without collapsing before the fusing point that sintering temperature reaches iron.
Further, ferrochrome powder accounts for the 60~80% of additive quality, the porous ceramics being sintered out intensity with higher
And will not the elevated temperature strength to the composite material of subsequent preparation will not generate large effect；Ammonium citrate accounts for additive quality
3~8%, the dispersibility of slurry is preferable at this time；Carboxymethyl cellulose accounts for the 4~8% of additive quality, at this time the mobility of slurry
It is preferable with thixotropy；Silica solution accounts for the 5~25% of additive quality, can guarantee that porous ceramic skeleton does not collapse in sintering process.
Further, Organic Foam Material is flexibel polyurethane, with three-dimensional open pores structure, aperture it is suitable, with certain
Hydrophily has enough resiliences, and its carbonization temperature is lower than sintering temperature, and reaction product is free from environmental pollution and will not be to more
The performance of hole ceramic generates biggish negative effect.
Further, the aperture of flexibel polyurethane is 5~50PPI, can choose the polyurethane of different pore size as needed, is made
The standby porous ceramics for providing different pore size.
Further, in high-temperature sintering process, ferrochrome powder can be molten into liquid, fill TiB2Circumgranular gap, mentions
The consistency of high porous ceramics.
Further, in the composite material that precast body obtains after casting, TiB2Chemistry occurs with the interface of iron matrix
Reaction, there is TiC, Fe2Ti and Ti3B4Equal products generate, and substantially increase the bond strength of composite material interface.
Further, in the matrix for the composite breaking wall that the present invention is prepared, since Cr constituent content is higher, Cr atom
Fe is replaced2Fe atom in part in B hard phase, can significantly improve Fe2The toughness of B；And in its composite layer, metallic matrix point
Cloth is in holey TiB2In the hole of ceramics, when crushing wall is by external world's friction, TiB2Ceramic-on-metal matrix plays centainly
Protective effect, to improve the abrasion resistance properties of crushing wall.
Further, the interface bond strength between reinforced phase and matrix is improved.
In conclusion the compound composite breaking wall rub resistance and heat-resisting quantity that are prepared by the method improve, reinforced phase
With substrate combinating strength height, intensity and the toughness enhancing of crushing wall, service life is improved.
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 composite breaking wall schematic diagram prepared by the embodiment of the present invention 1.
Wherein: 1. holey ceramics and metallic matrix recombination region；2. metallic matrix.
Specific embodiment
A kind of preparation method of holey ceramics enhancing steel-based composite breaking wall of the present invention, comprising the following steps:
S1, by TiB2Powder and additive are added into deionized water and stir to obtain ceramic slurry suspension
Liquid；
Additive includes ferrochrome powder, ammonium citrate, carboxymethyl cellulose, silica solution.
TiB2 powder accounts for the 60~80% of ceramic slurry gross mass, and additive accounts for the 10~25% of ceramic slurry gross mass,
Deionized water accounts for 10~30%, and ferrochrome powder accounts for the 60~80% of additive quality, and ammonium citrate accounts for the 3~8% of additive quality,
Carboxymethyl cellulose accounts for the 4~8% of additive quality, and silica solution accounts for the 5~25% of additive quality.
S2, the Organic Foam Material for choosing suitable aperture, are immersed in ceramic slurry, taken out after 1~5min and squeeze out it is extra
Slurry；
Organic Foam Material is the flexibel polyurethane that aperture is 5~50PPI.
S3, the Organic Foam Material after dipping is dried, in a vacuum furnace from room temperature with the heating rate liter of 1~2 DEG C/min
To 600~800 DEG C and 30~60min is kept the temperature, is then warming up to 1000~1200 DEG C with the heating rate of 5~10 DEG C/min, then
1550~1600 DEG C of 1~3h of sintering are risen to the heating rate of 2~5 DEG C/min, furnace cooling obtains holey precast body；
S4, end face or the working face that precast body is fixed on to casting mold are poured steel substrate material metal using technology of infiltration casting
Liquid obtains composite breaking wall after cooling and demolding.
Molten metal is the chromium alloy cast iron for manufacturing wear-resistant material, and ingredient includes: that Cr accounts for 20%, B by mass percentage
It accounts for 3.6~4.0%, C and accounts for 0.5~0.7%, Si and account for 0.5~0.7%, Mn and account for 0.5~0.7%, surplus is Fe and other can not keep away
The impurity exempted from.
The matrices of composite material and reinforcement that the present invention obtains are continuous structure, and the two mutually constrains, and supports each other, energy
The abrasive wear resistant weld deposit performance for enough improving composite material guarantees that crushing wall has longer service life.
The matrices of composite material and reinforcement that the present invention obtains are continuous structure, and the two mutually constrains, and supports each other, energy
The abrasive wear resistant weld deposit performance for enough improving composite material guarantees that crushing wall has longer service life.
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: breaking wall of spindle breaker
1) firstly, by 99.4g TiB2Powder, 42.6g ferrochrome powder, 1.42g ammonium citrate and 0.71g carboxymethyl cellulose add
Enter into 32mL deionized water and be added 8mL silica solution, stirs to obtain ceramic slurry suspension；
2) it is extra secondly, choosing the flexible polyurethane foams of 5PPI, to be immersed in ceramic slurry, take out after 2min and squeeze out
Slurry；
3) after the Organic Foam Material after dipping being dried, then in a vacuum furnace from room temperature with the heating rate liter of 2 DEG C/min
To 600 DEG C and 50min is kept the temperature, is then warming up to 1000 DEG C with the heating rate of 10 DEG C/min, then with the heating rate of 5 DEG C/min
1550 DEG C of sintering 3h are risen to, furnace cooling obtains holey precast body；
4) precast body is fixed on to end face or the working face of casting mold, steel substrate material metal is poured using technology of infiltration casting
Liquid obtains composite breaking wall after cooling and demolding.
Embodiment 2: gyratory crusher crushing wall
1) firstly, by 84g TiB2Powder, 36g ferrochrome powder, 1.42g ammonium citrate and 0.71g carboxymethyl cellulose be added to
In 32mL deionized water and 8mL silica solution is added, stirs to obtain ceramic slurry suspension；
2) it secondly, choosing the flexible polyurethane foams of 15PPI, is immersed in ceramic slurry, takes out and squeeze out more after 3min
Remaining slurry material；
3) after the Organic Foam Material after dipping being dried, then in a vacuum furnace from room temperature with the heating rate liter of 2 DEG C/min
To 800 DEG C and 60min is kept the temperature, is then warming up to 1200 DEG C with the heating rate of 8 DEG C/min, then with the heating rate of 2 DEG C/min
1550 DEG C of sintering 1h are risen to, furnace cooling obtains holey precast body；
4) precast body is fixed on to end face or the working face of casting mold, steel substrate material metal is poured using technology of infiltration casting
Liquid obtains composite breaking wall after cooling and demolding.
Embodiment 3: ring hammer crusher crushing wall
1) firstly, by 72.1g TiB2Powder, 30.9g ferrochrome powder, 1.42g ammonium citrate and 0.71g carboxymethyl cellulose add
Enter into 32mL deionized water and be added 8mL silica solution, stirs to obtain ceramic slurry suspension；
2) it secondly, choosing the flexible polyurethane foams of 20PPI, is immersed in ceramic slurry, takes out and squeeze out more after 5min
Remaining slurry material；
3) after the Organic Foam Material after dipping being dried, then in a vacuum furnace from room temperature with the heating rate liter of 1 DEG C/min
To 700 DEG C and 45min is kept the temperature, is then warming up to 1100 DEG C with the heating rate of 5 DEG C/min, then with the heating rate of 5 DEG C/min
1600 DEG C of sintering 2h are risen to, furnace cooling obtains holey precast body；
4) precast body is fixed on to end face or the working face of casting mold, steel substrate material metal is poured using technology of infiltration casting
Liquid obtains composite breaking wall after cooling and demolding.
Embodiment 4: jaw crusher crushing wall
1) firstly, by 99.4g TiB2Powder, 42.6g ferrochrome powder, 1.42g ammonium citrate and 0.71g carboxymethyl cellulose add
Enter into 32mL deionized water and be added 8mL silica solution, stirs to obtain ceramic slurry suspension；
2) it secondly, choosing the flexible polyurethane foams of 50PPI, is immersed in ceramic slurry, takes out and squeeze out more after 1min
Remaining slurry material；
3) after the Organic Foam Material after dipping being dried, then in a vacuum furnace from room temperature with the heating rate liter of 2 DEG C/min
To 750 DEG C and 30min is kept the temperature, is then warming up to 1200 DEG C with the heating rate of 7.5 DEG C/min, then with the heating of 4.5 DEG C/min
Rate rises to 1600 DEG C of sintering 2h, and furnace cooling obtains holey precast body；
4) precast body is fixed on to end face or the working face of casting mold, steel substrate material metal is poured using technology of infiltration casting
Liquid obtains composite breaking wall after cooling and demolding.
The compound composite breaking wall rub resistance and heat-resisting quantity prepared by the method improves, intensity and toughness enhancing,
Service life improves.
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 (8)
1. a kind of preparation method of holey ceramics enhancing steel-based composite breaking wall, which is characterized in that by TiB2Powder with add
Be added in deionized water after adding agent to mix and be sufficiently stirred obtained ceramic slurry, TiB2 powder account for ceramic slurry gross mass 60~
80%, additive accounts for the 10~25% of ceramic slurry gross mass, and deionized water accounts for 10~30%；Organic Foam Material is immersed in pottery
In porcelain slurry, holey TiB will be obtained through high temperature sintering after the Organic Foam Material drying after dipping2Precast body；Finally use
Holey TiB of the technology of infiltration casting to preparation2Precast body is poured steel substrate material metal liquid, obtains after cooling and demolding porous
Reticulated ceramic enhances steel-based composite breaking wall.
2. a kind of preparation method of holey ceramics enhancing steel-based composite breaking wall according to claim 1, special
Sign is that additive includes ferrochrome powder, ammonium citrate, carboxymethyl cellulose and silica solution.
3. a kind of preparation method of holey ceramics enhancing steel-based composite breaking wall according to claim 2, special
Sign is that ferrochrome powder accounts for the 60~80% of additive quality, and ammonium citrate accounts for the 3~8% of additive quality, carboxymethyl cellulose
The 4~8% of additive quality are accounted for, silica solution accounts for the 5~25% of additive quality.
4. a kind of preparation method of holey ceramics enhancing steel-based composite breaking wall according to claim 1, special
Sign is that Organic Foam Material is flexibel polyurethane, takes out after impregnating 1~5min in ceramic slurry suspension and squeezes out extra slurry
Material.
5. a kind of preparation method of holey ceramics enhancing steel-based composite breaking wall according to claim 4, special
Sign is that the aperture of flexibel polyurethane is 5~50PPI.
6. a kind of preparation method of holey ceramics enhancing steel-based composite breaking wall according to claim 1, special
Sign is that high temperature sintering is handled specifically: rises to 600~800 DEG C from room temperature with the heating rate of 1~2 DEG C/min and keeps the temperature 30
Then~60min is warming up to 1000~1200 DEG C with the heating rate of 5~10 DEG C/min, then with the heating speed of 2~5 DEG C/min
Rate rises to 1550~1600 DEG C of 1~3h of sintering, and furnace cooling obtains holey TiB2Precast body.
7. a kind of preparation method of holey ceramics enhancing steel-based composite breaking wall according to claim 1, special
Sign is that molten metal is the chromium alloy cast iron for manufacturing wear-resistant material.
8. a kind of preparation method of holey ceramics enhancing steel-based composite breaking wall according to claim 7, special
Sign is, molten metal includes the following: that Cr accounts for 15%, C and accounts for 3.1~3.2%, Mo and account for 1~1.5%, Si and accounts for 0.5 by mass percentage
~1.0%, Mn account for 0.6~0.7%, and surplus is Fe and other inevitable impurity.
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| CN201811210154.8A CN109338206B (en) | 2018-10-17 | 2018-10-17 | Preparation method of porous mesh ceramic reinforced steel-based composite crushing wall |
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| CN109943066A (en) * | 2019-04-17 | 2019-06-28 | 河南科技大学 | Monomer cast nylon polymeric material with three dimensional network structure, preparation method and applications |
| CN111299547A (en) * | 2020-03-18 | 2020-06-19 | 安徽华德电力技术工程有限公司 | High-temperature-resistant composite material and preparation method and application thereof |
| CN112077282A (en) * | 2020-09-22 | 2020-12-15 | 西安科技大学 | TiB2Preparation method of reinforced Fe-Cr-B alloy-based composite lining plate |
| CN113333749A (en) * | 2021-05-21 | 2021-09-03 | 广东省科学院材料与加工研究所 | Preparation process of three-dimensional reticular preform and three-dimensional reticular preform |
| CN115612909A (en) * | 2022-12-19 | 2023-01-17 | 西安稀有金属材料研究院有限公司 | Iron-based composite material reinforced and toughened by ceramic particles in net distribution and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109943066A (en) * | 2019-04-17 | 2019-06-28 | 河南科技大学 | Monomer cast nylon polymeric material with three dimensional network structure, preparation method and applications |
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| CN112077282A (en) * | 2020-09-22 | 2020-12-15 | 西安科技大学 | TiB2Preparation method of reinforced Fe-Cr-B alloy-based composite lining plate |
| CN113333749A (en) * | 2021-05-21 | 2021-09-03 | 广东省科学院材料与加工研究所 | Preparation process of three-dimensional reticular preform and three-dimensional reticular preform |
| CN115612909A (en) * | 2022-12-19 | 2023-01-17 | 西安稀有金属材料研究院有限公司 | Iron-based composite material reinforced and toughened by ceramic particles in net distribution and preparation method thereof |
| CN115612909B (en) * | 2022-12-19 | 2023-08-04 | 西安稀有金属材料研究院有限公司 | Reticular distributed ceramic particle reinforced and toughened iron-based composite material and preparation method thereof |
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| CN109338206B (en) | 2020-05-22 |
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