Silicon carbide preheating ring for zone melting
By using silicon carbide material and a preheating ring with an inward concave shape, combined with a wear-resistant ring seat and a reinforcing rib structure, the problem of easy damage to quartz glass is solved, achieving a longer service life and detection accuracy.
Patent Information
- Application Number
- CN202422428963.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The quartz glass of the existing zone melting preheating ring is easily damaged during use, resulting in high replacement frequency, increased costs, and affected detection accuracy.
The preheating ring is made of silicon carbide material and is designed with a concave shape. It combines a wear-resistant ring seat, a composite heat-resistant reinforcement ring and a reinforcing rib structure to improve heat conduction efficiency, reduce carbon volatility and enhance hardness.
The service life of the preheating ring is prolonged, the damage frequency is reduced, the introduction of carbon is reduced, and the detection accuracy and utilization rate are improved.
Smart Images
Figure CN223348803U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of zone melting detection, in particular to a silicon carbide preheating ring for zone melting. Background Art
[0002] The silicon carbide preheating ring for zone melting is a supporting device for preheating of zone melting detection. During the zone melting detection process, the graphite ring plays the role of preheating to reach the melting point of silicon at 1402 degrees Celsius. During this process, the release of CO / CO2 by graphite will affect the detection accuracy of substitutional C in silicon and cause errors in the detection data. With the continuous development of science and technology, people have higher and higher requirements for the manufacturing process of silicon carbide preheating rings for zone melting.
[0003] The existing zone melting preheating ring has certain disadvantages when used. The existing preheating ring is equipped with a layer of quartz glass outside the graphite ring. However, in actual use, the quartz glass is easily damaged and the edges are easily broken. The replacement frequency is high, resulting in cost waste and bringing certain adverse effects to the actual use process. Therefore, we propose a silicon carbide preheating ring for zone melting. Utility Model Content
[0004] Technical problems solved: In response to the shortcomings of the existing technology, the utility model provides a silicon carbide preheating ring for zone melting, which uses silicon carbide as graphite and is designed with an inward concave shape for better heat collection effect, thereby increasing the heat conduction effect. The carbon volatility is low, which reduces the introduction of carbon during the detection process. The hardness is higher, the damage frequency is reduced, and the utilization rate is improved, which can effectively solve the problems in the background technology.
[0005] Technical solution: In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a silicon carbide preheating ring for zone melting, comprising a preheating ring body, the inner wall of the preheating ring body is integrally formed with a wear-resistant ring seat, the outer wall of the preheating ring body is integrally formed with a composite heat-resistant reinforcement ring, the interior of the preheating ring body is integrally formed with a graphite support and a reinforcement ring, the interior of the reinforcement ring is integrally formed with transverse reinforcement ribs and longitudinal reinforcement ribs, and the graphite support and the reinforcement ring are positioned with each other.
[0006] Preferably, the composite heat-resistant reinforcement ring includes a wear-resistant stainless steel sheet, a flame-resistant fiber sheet, an alloy sheet, an antioxidant sheet and a quartz sheet. The antioxidant sheet is located on the surface of the quartz sheet, the alloy sheet is located on the surface of the anti-oxidation sheet, the flame-resistant fiber sheet is located on the surface of the alloy sheet, and the wear-resistant stainless steel sheet is located on the surface of the flame-resistant fiber sheet.
[0007] Preferably, the preheating ring body, the wear-resistant ring seat and the composite heat-resistant reinforcement ring are integrally formed by casting and molding.
[0008] Preferably, the preheating ring body and the wear-resistant ring seat adopt a silicon carbide graphite structure.
[0009] Preferably, the preheating ring body, the reinforcement ring, the graphite support, the transverse reinforcement ribs and the longitudinal reinforcement ribs are integrally formed by casting.
[0010] Preferably, the wear-resistant stainless steel sheet, flame-resistant fiber sheet, alloy sheet, antioxidant sheet and quartz sheet are integrally formed by casting.
[0011] Beneficial Effects: Compared to existing technologies, the present invention provides a silicon carbide preheating ring for zone melting, which exhibits the following advantages: This silicon carbide preheating ring for zone melting utilizes silicon carbide as graphite and features a concave shape for better heat concentration, enhancing heat conduction. Low carbon volatility reduces carbon introduction during testing, resulting in higher hardness, reduced damage frequency, and improved utilization. Silicon carbide has at least 70 crystalline forms. α-Silicon carbide is the most common allomorph, formed at temperatures exceeding 2000°C. It has a hexagonal crystal structure (similar to wurtzite) and a melting point of 2700°C. Silicon carbide is a graphite ring. Silicon carbide is very hard, with a Mohs hardness of 9.5, second only to the world's hardest diamond (grade 10). It also has excellent thermal conductivity, is a semiconductor, and resists oxidation at high temperatures. Silicon carbide has a higher melting point, lower C volatility, and higher heat conduction efficiency. The preheating ring for zone melting is designed with a concave shape for better heat gathering effect, which increases the heat conduction effect. The entire silicon carbide preheating ring for zone melting has a simple structure, is easy to operate, and has better results than traditional methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 The utility model is a schematic diagram of the overall structure of a silicon carbide preheating ring for zone melting.
[0013] Figure 2 The utility model is a structural schematic diagram of a preheating ring main body in a silicon carbide preheating ring for zone melting.
[0014] Figure 3 The utility model is a schematic diagram of the structure of the interior of the preheating ring body of a silicon carbide preheating ring for zone melting.
[0015] Figure 4 The utility model is a structural schematic diagram of a composite heat-resistant reinforcement ring in a silicon carbide preheating ring for zone melting.
[0016] In the figure: 1. Preheating ring body; 2. Wear-resistant ring seat; 3. Composite heat-resistant reinforcement ring; 4. Graphite support; 5. Reinforcement ring; 6. Horizontal reinforcement rib; 7. Longitudinal reinforcement rib; 8. Wear-resistant stainless steel sheet; 9. Flame-resistant fiber sheet; 10. Alloy sheet; 11. Anti-oxidation sheet; 12. Quartz sheet. DETAILED DESCRIPTION
[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention. If specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.
[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0020] like Figure 1-4 As shown, a silicon carbide preheating ring for zone melting includes a preheating ring body 1, the inner wall of the preheating ring body 1 is integrally formed with a wear-resistant ring seat 2, the outer wall of the preheating ring body 1 is integrally formed with a composite heat-resistant reinforcement ring 3, the interior of the preheating ring body 1 is integrally formed with a graphite support 4 and a reinforcement ring 5, the interior of the reinforcement ring 5 is integrally formed with a transverse reinforcement rib 6 and a longitudinal reinforcement rib 7, the graphite support 4 and the reinforcement ring 5 are positioned between them, silicon carbide is used as graphite, and the design is a concave shape with better heat gathering effect, which increases the heat conduction effect, has low carbon volatility, reduces the introduction of carbon during the detection process, has higher hardness, reduces the damage frequency, and improves the utilization rate.
[0021] Furthermore, the composite heat-resistant reinforcement ring 3 includes a wear-resistant stainless steel sheet 8, a flame-resistant fiber sheet 9, an alloy sheet 10, an antioxidant sheet 11 and a quartz sheet 12. The antioxidant sheet 11 is located on the surface of the quartz sheet 12, the alloy sheet 10 is located on the surface of the antioxidant sheet 11, the flame-resistant fiber sheet 9 is located on the surface of the alloy sheet 10, and the wear-resistant stainless steel sheet 8 is located on the surface of the flame-resistant fiber sheet 9.
[0022] Furthermore, the preheating ring body 1, the wear-resistant ring seat 2 and the composite heat-resistant reinforcement ring 3 are integrally formed by casting and molding.
[0023] Furthermore, the preheating ring body 1 and the wear-resistant ring seat 2 adopt a silicon carbide graphite structure.
[0024] Furthermore, the preheating ring body 1, the reinforcement ring 5, the graphite support 4, the transverse reinforcement ribs 6 and the longitudinal reinforcement ribs 7 are integrally formed by casting.
[0025] Furthermore, the wear-resistant stainless steel sheet 8, the flame-resistant fiber sheet 9, the alloy sheet 10, the antioxidant sheet 11 and the quartz sheet 12 are integrally formed by casting.
[0026] Working principle: The utility model includes a preheating ring body 1, a wear-resistant ring seat 2, a composite heat-resistant reinforcement ring 3, a graphite support 4, a reinforcement ring 5, a transverse reinforcement rib 6, a longitudinal reinforcement rib 7, a wear-resistant stainless steel sheet 8, a flame-resistant fiber sheet 9, an alloy sheet 10, an antioxidant sheet 11, and a quartz sheet 12. Silicon carbide is used as graphite, which has low carbon volatility, reduces the introduction of carbon during the detection process, has higher hardness, reduces the damage frequency, and improves utilization rate;
[0027] Silicon carbide has at least 70 crystalline forms. α-Silicon carbide is the most common allomorph. It forms at temperatures exceeding 2000°C and has a hexagonal crystal structure (similar to wurtzite) with a melting point of 2700°C. Silicon carbide is very hard, with a Mohs hardness of 9.5, second only to the world's hardest diamond (10). It also has excellent thermal conductivity, is a semiconductor, and resists oxidation at high temperatures. Silicon carbide has a higher melting point, lower carbon volatility, and more efficient thermal conductivity. The preheating rings used in the production of silicon carbide zone melts are designed with a concave shape for better heat concentration and improved thermal conductivity.
[0028] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "include," "comprise," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "includes a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.
[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.
Claims
1. A silicon carbide preheating ring for zone melting, comprising a preheating ring body (1), characterized in that: The inner wall of the preheating ring body (1) is integrally formed with a wear-resistant ring seat (2), the outer wall of the preheating ring body (1) is integrally formed with a composite heat-resistant reinforcement ring (3), the interior of the preheating ring body (1) is integrally formed with a graphite support (4) and a reinforcement ring (5), the interior of the reinforcement ring (5) is integrally formed with a transverse reinforcement rib (6) and a longitudinal reinforcement rib (7), and positioning is performed between the graphite support (4) and the reinforcement ring (5).
2. The silicon carbide preheating ring for zone melting according to claim 1, characterized in that: The composite heat-resistant reinforcement ring (3) comprises a wear-resistant stainless steel sheet (8), a flame-resistant fiber sheet (9), an alloy sheet (10), an antioxidant sheet (11) and a quartz sheet (12), wherein the antioxidant sheet (11) is located on the surface of the quartz sheet (12), the alloy sheet (10) is located on the surface of the antioxidant sheet (11), the flame-resistant fiber sheet (9) is located on the surface of the alloy sheet (10), and the wear-resistant stainless steel sheet (8) is located on the surface of the flame-resistant fiber sheet (9).
3. The silicon carbide preheating ring for zone melting according to claim 1, characterized in that: The preheating ring body (1), the wear-resistant ring seat (2) and the composite heat-resistant reinforcement ring (3) are integrally formed by casting and molding.
4. The silicon carbide preheating ring for zone melting according to claim 1, characterized in that: The preheating ring body (1) and the wear-resistant ring seat (2) adopt a silicon carbide graphite structure.
5. The silicon carbide preheating ring for zone melting according to claim 1, characterized in that: The preheating ring body (1), the reinforcement ring (5), the graphite support (4), the transverse reinforcement ribs (6) and the longitudinal reinforcement ribs (7) are integrally formed by casting.
6. The silicon carbide preheating ring for zone melting according to claim 2, characterized in that: The wear-resistant stainless steel sheet (8), the flame-resistant fiber sheet (9), the alloy sheet (10), the anti-oxidation sheet (11) and the quartz sheet (12) are integrally formed by casting.