CN211865376U - SiC prefabricated part reinforced composite high manganese steel wear-resistant plate - Google Patents
SiC prefabricated part reinforced composite high manganese steel wear-resistant plate Download PDFInfo
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- CN211865376U CN211865376U CN201922246887.3U CN201922246887U CN211865376U CN 211865376 U CN211865376 U CN 211865376U CN 201922246887 U CN201922246887 U CN 201922246887U CN 211865376 U CN211865376 U CN 211865376U
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Abstract
The utility model discloses a compound high manganese steel antifriction plate of SiC preform reinforcing, including high manganese steel sheet and a plurality of SiC preforms the working face of high manganese steel sheet on open the recess die cavity that has a plurality of and SiC preform shape matching, fix a plurality of SiC preforms in a plurality of recess die cavities. The utility model discloses with the SiC prefabricated part through brazing welding in recess die cavity, avoid the direct and molten iron contact of SiC granule to take place chemical reaction. The SiC prefabricated body is welded in the cavity of the working abrasion part of the high manganese steel abrasion-resistant plate by adopting a brazing process to form the SiC prefabricated body reinforced composite high manganese steel abrasion-resistant plate, and the SiC prefabricated body reinforced composite high manganese steel abrasion-resistant plate has a good abrasion-resistant effect and is not easy to fall off.
Description
Technical Field
The utility model relates to an antifriction plate technical field especially relates to a compound high manganese steel antifriction plate of SiC preform reinforcing.
Background
At present, most of core wear-resistant parts of crushing and extruding equipment in the industries of cement, electric power, mine and the like, such as a large hammer head of a limestone crusher, jaw plates of a jaw crusher, mortar walls of a cone crusher and the like, are made of traditional high manganese steel wear-resistant materials. The cast high manganese steel forms a single austenite structure after being subjected to water toughening treatment, the hardness is only 180-240 HB, but the cast high manganese steel is subjected to deformation and then is remarkably processed and hardened, a plurality of slip bands appear in the microstructure of the cast high manganese steel, even grains are distorted, the slip bands are bent or slip steps appear, the hardness of a deformation layer can reach 500-800 HB, and the depth of a hardening layer can reach 10-20 mm. The hardened layer is related to factors such as the size and form of the impact load, the structural state, the chemical composition, the plastic properties, the strength properties, the deformation speed, and the like. The high hardness and good toughness of the hardened layer enable the hardened layer to have excellent wear resistance. Meanwhile, when the surface hardened layer is worn, the hardened layer continuously develops inwards under the action of impact load, so that the material always keeps good wear resistance. However, in actual production, the hardness of mineral raw materials is mostly higher than that of the high manganese steel after deformation and hardening, so that the wear-resistant part is prone to premature wear and failure in the service process, and the actual working requirements of production equipment are difficult to meet.
SiC is a high hardness carbide having hardness higher than WC and TiC, and a contact angle between SiC particles and molten iron is 0 degree, and is well wetted by molten iron. However, SiC reacts with iron to form Fe at the interface between SiC particles and the iron matrix3The C brittle phase influences the bonding strength of SiC particles and an iron matrix, and the SiC particles are easy to fall off in the use process, so that the wear resistance of the composite material is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a compound high manganese steel antifriction plate of SiC preform reinforcing in order to remedy prior art's defect.
The utility model discloses a realize through following technical scheme:
the utility model provides a compound high manganese steel antifriction plate of SiC preform reinforcing, is including high manganese steel sheet and a plurality of SiC preforms the working face of high manganese steel sheet on open and to have a plurality of recess die cavities that match with the SiC preform shape, fix a plurality of SiC preforms in a plurality of recess die cavities.
The SiC prefabricated body is in a cylindrical shape.
The number of the groove cavities is 27, and the groove cavities are uniformly distributed on the working surface of the high manganese steel plate in 3 rows and 9 lines.
The SiC prefabricated body is welded in the groove cavity through brazing.
The SiC prefabricated body is formed by modifying the surface of SiC particles by plating Ti by an electroplating barrel plating method, then mixing the modified SiC particles with iron powder, cobalt powder, molybdenum powder and vanadium powder, dry-pressing and molding, and then hot-pressing and sintering in the argon protective atmosphere.
The utility model has the advantages that: the utility model discloses with the SiC prefabricated part through brazing welding in recess die cavity, avoid the direct and molten iron contact of SiC granule to take place chemical reaction. The SiC prefabricated body is welded in the cavity of the working abrasion part of the high manganese steel abrasion-resistant plate by adopting a brazing process to form the SiC prefabricated body reinforced composite high manganese steel abrasion-resistant plate, and the SiC prefabricated body reinforced composite high manganese steel abrasion-resistant plate has a good abrasion-resistant effect and is not easy to fall off.
Drawings
Fig. 1 is a front sectional view of the present invention.
Fig. 2 is a left side sectional view of the present invention.
Fig. 3 is a top cross-sectional view of the present invention.
FIG. 4 is a schematic diagram of a SiC preform sintering process.
FIG. 5 is a schematic view of a water toughening treatment process for a high manganese steel wear plate.
Detailed Description
As shown in fig. 1, 2 and 3, the SiC preform reinforced composite high manganese steel wear-resistant plate comprises a high manganese steel plate 2 and a plurality of SiC preforms 1, wherein a plurality of groove cavities matched with the SiC preforms 1 in shape are formed in the working surface of the high manganese steel plate 2, and the SiC preforms are fixed in the groove cavities.
The SiC preform 1 is cylindrical.
The number of the groove cavities is 27, and the groove cavities are uniformly distributed on the working surface of the high manganese steel plate 2 in 3 rows and 9 lines.
The SiC prefabricated body 1 is welded in the groove cavity through brazing.
The SiC prefabricated body 1 is formed by modifying the surface of SiC particles by plating Ti by an electroplating barrel plating method, then mixing the modified SiC particles with iron powder, cobalt powder, molybdenum powder and vanadium powder, dry-pressing and molding, and then hot-pressing and sintering in the argon protective atmosphere.
Example one
Consists of a SiC prefabricated body and a high manganese steel wear-resisting plate. Modifying the surface of SiC particles by plating Ti by an electroplating barrel plating method, mixing the modified SiC particles with iron powder, cobalt powder, molybdenum powder, vanadium powder and the like according to a certain proportion, and after dry pressing and forming, rapidly hot-pressing and sintering in an argon protective atmosphere by adopting a sintering process shown in figure 4 to obtain the SiC preform 1. Hardening and molding a high manganese steel wear plate 2 sand mold in a sand box by using sodium silicate sand (or resin sand, lost foam gem sand and the like), pouring high manganese steel molten steel at 1400-1450 ℃ into the wear plate 2 sand mold below the working wear part of the wear plate, solidifying and molding the molten steel to obtain the wear plate 2, and cleaning the cavity sand core of the SiC preform at the working wear part of the wear plate 2 to form a smooth cavity; the wear-resisting plate 2 is subjected to water toughening treatment according to a water toughening treatment process shown in fig. 5, and then the SiC prefabricated body is welded in a cavity of a working wear part of the high manganese steel wear-resisting plate 2 by adopting a brazing process to form the SiC prefabricated body reinforced composite high manganese steel wear-resisting plate.
Claims (4)
1. The utility model provides a compound high manganese steel antifriction plate of SiC preform reinforcing which characterized in that: the high manganese steel plate is characterized by comprising a high manganese steel plate and a plurality of SiC preforms, wherein a plurality of groove cavities matched with the SiC preforms in shape are formed in the working surface of the high manganese steel plate, and the SiC preforms are fixed in the groove cavities.
2. The SiC preform reinforced composite high manganese steel wear plate of claim 1, wherein: the SiC prefabricated body is in a cylindrical shape.
3. The SiC preform reinforced composite high manganese steel wear plate of claim 1, wherein: the number of the groove cavities is 27, and the groove cavities are uniformly distributed on the working surface of the high manganese steel plate in 3 rows and 9 lines.
4. The SiC preform reinforced composite high manganese steel wear plate of claim 1, wherein: the SiC prefabricated body is welded in the groove cavity through brazing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922246887.3U CN211865376U (en) | 2019-12-16 | 2019-12-16 | SiC prefabricated part reinforced composite high manganese steel wear-resistant plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922246887.3U CN211865376U (en) | 2019-12-16 | 2019-12-16 | SiC prefabricated part reinforced composite high manganese steel wear-resistant plate |
Publications (1)
| Publication Number | Publication Date |
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| CN211865376U true CN211865376U (en) | 2020-11-06 |
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| CN201922246887.3U Active CN211865376U (en) | 2019-12-16 | 2019-12-16 | SiC prefabricated part reinforced composite high manganese steel wear-resistant plate |
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| CN (1) | CN211865376U (en) |
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2019
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