CN111546248B - Grinding disc structure of molding sand regeneration system - Google Patents
Grinding disc structure of molding sand regeneration system Download PDFInfo
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- CN111546248B CN111546248B CN202010425260.9A CN202010425260A CN111546248B CN 111546248 B CN111546248 B CN 111546248B CN 202010425260 A CN202010425260 A CN 202010425260A CN 111546248 B CN111546248 B CN 111546248B
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- China
- Prior art keywords
- grinding disc
- molding sand
- regeneration system
- sand regeneration
- disc body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/14—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
- B24D3/342—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/16—Bushings; Mountings
Abstract
The invention provides a grinding disc structure of a molding sand regeneration system, which is applied to the technical field of novel sand regeneration systems and comprises a grinding disc body (1), wherein the grinding disc body (1) is of a circular structure, the grinding disc body (1) is made of Si3N4 and Al2O3, the part ratio of Si3N4 is controlled to be 90-95%, and the part ratio of Al2O3 is controlled to be 5-10%.
Description
Technical Field
The invention belongs to the technical field of novel sand regeneration systems, and particularly relates to a grinding disc structure of a molding sand regeneration system.
Background
When the sand mold is used for casting, the sand and the resin agent are mixed and hardened to form molding sand, the molding sand is injected into a sand box mold for molding, then casting production is carried out, and after casting production is finished, the hardened molding sand becomes old sand. The used sand surface bonding resin adhesive film can not be simply reused, and needs to be treated again by a molding sand regeneration system, so that the failed resin adhesive film attached to the surface of the used sand is removed, the original performance of molding sand is recovered, and the used sand can be reused. In the prior art, a molding sand regeneration system mainly depends on import, grinding discs which are core components on the system are imported, and the grinding discs are high in price. More importantly, the existing grinding disc is not wear-resistant, is easy to break and fall off, so that the system shakes during operation, the LIO index qualification rate of sand regeneration is unstable, the normal operation of the system is influenced, and the normal operation of production is restricted. The prior art does not have a grinding disc which effectively overcomes the defects and meets the requirements.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the molding sand regeneration system grinding disc structure is simple in structure, can effectively improve hardness and temperature resistance of the grinding disc body, and can effectively reduce the problems of breakage and falling of the grinding disc body, prolong the service life and reduce the manufacturing cost by improving the performance of the grinding disc body in the using process.
To solve the technical problems, the invention adopts the technical scheme that:
the invention relates to a grinding disc structure of a molding sand regeneration system, which comprises a grinding disc body, wherein the grinding disc body is of an annular structure, the grinding disc body is made of Si3N4 (silicon nitride) and Al2O3 (aluminum oxide), the part ratio of Si3N4 (silicon nitride) is 90-95%, and the part ratio of Al2O3 (aluminum oxide) is 5-10%.
The hardness HRA of the grinding disc body of the grinding disc structure of the molding sand regeneration system is more than or equal to 90, and the high-temperature resistant temperature of the grinding disc body of the grinding disc structure of the molding sand regeneration system is more than or equal to 400 ℃.
The grinding disc body of the grinding disc structure of the molding sand regeneration system further comprises trace elements, wherein the trace elements are ZrO2 (zirconium oxide), and when the trace elements are added into the components of the grinding disc body, the part ratio of the trace elements is equal to the part ratio of the corresponding reduction of Si3N4 (silicon nitride).
The grinding disc structure of the molding sand regeneration system further comprises a grinding disc steel blank which is arranged to be of a circular ring-shaped structure, and the grinding disc body is pasted on the inner wall of the grinding disc steel blank.
The upper part of the outer surface of a grinding disc steel billet of the grinding disc structure of the molding sand regeneration system is provided with a ring of upper convex parts, and the lower part of the outer surface of the grinding disc steel billet is provided with a ring of lower convex parts.
The grinding disc body is stuck on the inner wall of the grinding disc billet through a binder.
The millstone billet and the millstone body are both in horn-shaped structures.
By adopting the technical scheme of the invention, the following beneficial effects can be obtained:
the grinding disc structure of the molding sand regeneration system improves the grinding disc body of the grinding disc structure of the molding sand regeneration system, improves the components of the grinding disc body, and enables the hardness, the wear resistance and the temperature resistance of the grinding disc body to be balanced. Like this, when mill body work is under adverse conditions, can effectively satisfy the operation requirement, be difficult to the breakage, be difficult to drop with the mill steel billet, improve life, moreover, mill body performance is promoted for regeneration system operation, can not appear shaking because of mill body goes wrong. The millstone structure of the molding sand regeneration system is simple in structure, can effectively improve the hardness and the temperature resistance of the millstone body, and can effectively reduce the problems of crushing and falling of the millstone body, prolong the service life and reduce the manufacturing cost by improving the performance of the millstone body in the using process.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic structural view of a disc structure of a sand reclamation system according to the present invention;
in the drawings, the symbols are respectively: 1. a millstone body; 2. grinding the steel billet; 3. an upper convex portion; 4. a lower convex part.
Detailed Description
The following detailed description of the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations among the components, the functions and operation principles of the components, will be made by referring to the accompanying drawings and the description of the embodiments:
as shown in the attached drawing 1, the invention relates to a grinding disc structure of a molding sand regeneration system, which comprises a grinding disc body 1, wherein the grinding disc body 1 is of an annular structure, the grinding disc body 1 is made of Si3N4 (silicon nitride) and Al2O3 (aluminum oxide), the part ratio of Si3N4 (silicon nitride) is 90-95%, and the part ratio of Al2O3 (aluminum oxide) is 5-10%. Above-mentioned structure, to the defect that the mill body among the prior art exists, improves the mill body of molding sand regeneration system mill structure, improves the composition of mill body for hardness, the wearability of mill body, temperature toleration reach the balance. Like this, when mill body work is under adverse conditions, can effectively satisfy the operation requirement, be difficult to the breakage, be difficult to drop with mill steel billet 2, improve life, moreover, mill body performance obtains promoting for regeneration system operation, can not appear shaking because mill body goes wrong. The millstone structure of the molding sand regeneration system is simple in structure, can effectively improve the hardness and the temperature resistance of the millstone body, and can effectively reduce the problems of crushing and falling of the millstone body, prolong the service life and reduce the manufacturing cost by improving the performance of the millstone body in the using process.
The hardness HRA of the grinding disc body 1 of the grinding disc structure of the molding sand regeneration system is more than or equal to 90, and the high-temperature resistant temperature of the grinding disc body 1 of the grinding disc structure of the molding sand regeneration system is more than or equal to 400 ℃. Above-mentioned structure, the mill body can normally work for a long time under the high temperature environment more than 350 degrees, and mill body 1 passes through the binder with the mill steel billet and is connected, and the binder can not melt, and the mill body can not drop.
The ingredients of the grinding disc body 1 of the grinding disc structure of the molding sand regeneration system further comprise trace elements, the trace elements are ZrO2 (zirconium oxide), the hardness and the smoothness of the ceramic surface can be increased, sand is not easy to stick, when the trace elements are added into the ingredients of the grinding disc body 1, the part ratio of the trace elements is equal to the part ratio of the corresponding decrease of Si3N4 (silicon nitride), and the overall quality is improved.
The grinding disc structure of the molding sand regeneration system further comprises a grinding disc steel blank 2, the grinding disc steel blank 2 is of a circular ring-shaped structure, and the grinding disc body 1 is pasted on the inner wall of the grinding disc steel blank 2. The grinding disc body 1 is adhered to the inner wall of the grinding disc billet 2 through a bonding agent. Above-mentioned structure, mill body and mill steel billet cooperation, both paste the connection. Because the performance of the grinding disc body is comprehensively improved, after the grinding disc body is matched with the grinding disc steel billet, the internal stress of the grinding disc body, the extrusion force of the grinding disc body and the radial shearing force of the grinding disc body are effectively improved, so that the crushing problem of the grinding disc body is effectively reduced, and the probability of the falling problem of the grinding disc body and the grinding disc steel billet is effectively reduced.
The upper part of the outer surface of a grinding disc billet 2 of the grinding disc structure of the molding sand regeneration system is provided with an upper convex part 3, the lower part of the outer surface of the grinding disc billet 2 is provided with a lower convex part 4,
the grinding disc steel blank 2 and the grinding disc body 1 are both in horn-shaped structures.
The grinding disc structure of the molding sand regeneration system improves the grinding disc body of the grinding disc structure of the molding sand regeneration system, improves the components of the grinding disc body, and enables the hardness, the wear resistance and the temperature resistance of the grinding disc body to be balanced. Like this, when mill body work is under adverse conditions, can effectively satisfy the operation requirement, be difficult to the breakage, be difficult to drop with the mill steel billet, improve life, moreover, mill body performance is promoted for regeneration system operation, can not appear shaking because of mill body goes wrong. The millstone structure of the molding sand regeneration system is simple in structure, can effectively improve the hardness and the temperature resistance of the millstone body, and can effectively reduce the problems of crushing and falling of the millstone body, prolong the service life and reduce the manufacturing cost by improving the performance of the millstone body in the using process.
The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the invention, and its application to other applications without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides a molding sand regeneration system mill structure which characterized in that: the grinding disc structure of the molding sand regeneration system comprises a grinding disc body (1), wherein the grinding disc body (1) is arranged to be of a circular ring structure, the grinding disc body (1) is made of Si3N4 and Al2O3, the part ratio of Si3N4 is controlled to be 90-95%, and the part ratio of Al2O3 is controlled to be 5-10%;
the grinding disc body (1) of the grinding disc structure of the molding sand regeneration system further comprises trace elements, wherein the trace elements are zirconium oxide, and when the trace elements are added into the components of the grinding disc body (1), the part ratio of the trace elements is equal to the part ratio of the corresponding reduction of Si3N 4;
the grinding disc structure of the molding sand regeneration system further comprises a grinding disc steel blank (2), the grinding disc steel blank (2) is of a circular structure, and the grinding disc body (1) is adhered to the inner wall of the grinding disc steel blank (2);
the upper part of the outer surface of a grinding disc billet (2) of the grinding disc structure of the molding sand regeneration system is provided with a ring of upper convex parts (3), and the lower part of the outer surface of the grinding disc billet (2) is provided with a ring of lower convex parts (4).
2. The sand reclamation system disc structure of claim 1, wherein: the hardness HRA of the grinding disc body (1) of the grinding disc structure of the molding sand regeneration system is more than or equal to 90, and the high-temperature resistant temperature of the grinding disc body (1) of the grinding disc structure of the molding sand regeneration system is more than or equal to 400 ℃.
3. The sand reclamation system disc structure of claim 1 or 2, wherein: the grinding disc body (1) is adhered to the inner wall of the grinding disc billet (2) through a bonding agent.
4. The sand reclamation system disc structure of claim 1 or 2, wherein: the grinding disc steel billet (2) and the grinding disc body (1) are both in horn-shaped structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010425260.9A CN111546248B (en) | 2020-05-19 | 2020-05-19 | Grinding disc structure of molding sand regeneration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010425260.9A CN111546248B (en) | 2020-05-19 | 2020-05-19 | Grinding disc structure of molding sand regeneration system |
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| Publication Number | Publication Date |
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| CN111546248A CN111546248A (en) | 2020-08-18 |
| CN111546248B true CN111546248B (en) | 2022-05-03 |
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| CN202010425260.9A Active CN111546248B (en) | 2020-05-19 | 2020-05-19 | Grinding disc structure of molding sand regeneration system |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06142825A (en) * | 1992-11-06 | 1994-05-24 | Sintokogio Ltd | Molding sand regenerative apparatus |
| US7521388B2 (en) * | 2003-09-25 | 2009-04-21 | Kabushiki Kaisha Toshiba | Wear resistant member comprised of silicon nitride and process for producing the same |
| CN102272074B (en) * | 2008-08-29 | 2014-05-28 | Skf股份公司 | Large ceramic component and method of manufacture |
| KR101599572B1 (en) * | 2008-09-17 | 2016-03-03 | 다이아몬드 이노베이션즈, 인크. | Cubic boron nitride ceramic composites and methods of making thereof |
| CN101962297B (en) * | 2010-10-20 | 2013-05-22 | 北京中材人工晶体研究院有限公司 | Preparation method of silicon nitride ceramics ring for polysilicon reduction furnace |
| CN203578670U (en) * | 2013-09-25 | 2014-05-07 | 常州市卓信机电设备制造有限公司 | Ceramic regeneration pan of self-hardening sand regenerator |
| CN105801128A (en) * | 2016-06-02 | 2016-07-27 | 吴依妮 | Silicon nitride ceramic and method for preparing same |
| CN110038997B (en) * | 2019-05-18 | 2021-01-19 | 无锡金钊洋机械设备有限公司 | Millstone regenerator for sand recovery |
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2020
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