CN115673306A - Plug rod for producing high-phosphorus amorphous alloy and manufacturing method thereof - Google Patents
Plug rod for producing high-phosphorus amorphous alloy and manufacturing method thereof Download PDFInfo
- Publication number
- CN115673306A CN115673306A CN202211419389.4A CN202211419389A CN115673306A CN 115673306 A CN115673306 A CN 115673306A CN 202211419389 A CN202211419389 A CN 202211419389A CN 115673306 A CN115673306 A CN 115673306A
- Authority
- CN
- China
- Prior art keywords
- stopper rod
- amorphous alloy
- meshes
- phosphorus amorphous
- less
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Powder Metallurgy (AREA)
Abstract
The invention discloses a stopper rod for producing high-phosphorus amorphous alloy and a manufacturing method thereof, wherein the stopper rod comprises the following raw materials in percentage by mass: zirconium oxide: 5-20%, white corundum: 40-70%, graphite: 10-35%, phenolic resin 5-12%, si 3 N 4 :0 to 5%, BN:0 to 5 percent; the preparation method comprises the steps of raw material mixing, isostatic pressing, curing, sintering and processing to obtain the finished product. The invention aims to provide a stopper rod for producing high-phosphorus amorphous alloy and a manufacturing method thereof, which improve the service life of the stopper rod, improve the production efficiency and the finished product quality of an amorphous strip and reduce the production cost.
Description
Technical Field
The invention relates to the field of amorphous alloy production, in particular to a stopper rod for producing high-phosphorus amorphous alloy and a manufacturing method thereof.
Background
The amorphous alloy is a novel soft magnetic material, and has the advantages of no crystal anisotropy, high resistivity, high magnetic permeability and low loss due to disordered atomic arrangement. The amorphous alloy is manufactured by directly spraying a strip by using a rapid solidification technology after molten steel is smelted to form a thin strip product. Because of its excellent magnetic properties, low loss during the use of the transformer, and energy saving in manufacturing, the amorphous alloy is called green material and twenty-first century material.
The stopper rod is an important part in the production process of the amorphous alloy and plays a role in accurately controlling the flow of molten steel. With the development of amorphous alloy material technology, high-phosphorus alloys have been developed and applied due to their obvious advantages in magnetic properties. Because the molten steel contains higher phosphorus, the viscosity of the molten steel is reduced, the molten steel is easy to permeate into the material along the air holes of the plug rod material, on one hand, oxygen in the molten steel oxidizes carbon and loses bonding strength, on the other hand, the phosphorus and conventional materials such as spinel which are alkaline materials and the like chemically react at high temperature, the head of the plug rod is quickly corroded, and the flow can not be accurately controlled due to serious corrosion after about 2 hours of use, so that quality problems or production interruption are caused.
Disclosure of Invention
The invention aims to provide a stopper rod for producing high-phosphorus amorphous alloy and a manufacturing method thereof, which improve the service life of the stopper rod, improve the production efficiency and the finished product quality of an amorphous strip and reduce the production cost.
In order to solve the technical problem, the invention adopts the following technical scheme:
the invention relates to a stopper rod for producing a high-phosphorus amorphous alloy, which comprises the following raw materials in percentage by mass: zirconium oxide: 5-20%, white corundum: 40-70%, graphite: 10-35%, phenolic resin 5-12%, si 3 N 4 ：0～5％，BN：0～5％。
Furthermore, the granularity of the zirconia is 200 meshes and 325 meshes, and the weight ratio of the two granularities is 2.
Further, the white corundum has the granularity of +30 meshes, +80 meshes and 200 meshes, and the weight ratio of three granularity raw materials is 2.
Furthermore, the graphite has the particle size of +100 meshes and the purity of not less than 99%.
Further, the particle size of the phenolic resin is-325 meshes.
Further, said Si 3 N 4 The granularity is 200 meshes, and the purity is not less than 98 percent.
Further, the BN particle size is 200 meshes, and the purity is not less than 98%.
The manufacturing method of the stopper rod for producing the high-phosphorus amorphous alloy is characterized by comprising the following preparation steps of raw material mixing, isostatic pressing, curing, sintering and processing to obtain a finished product;
wherein:
in the isostatic pressing process, the pressure increasing rate is less than 5MPa/min, the highest pressure is 80-120 MPa, the pressure maintaining time is 5-10 min, and the pressure reducing rate is reduced to the normal pressure at the pressure of less than 5 MPa/min;
in the curing process, the heating rate is less than 5 ℃/min, the highest temperature is 280-300 ℃, the heat preservation time is 2-5 h, and the temperature is naturally reduced to the room temperature;
in the firing process, firing is carried out under the protection of nitrogen, the heating rate is less than 5 ℃/min, the highest temperature is 900-1100 ℃, the heat preservation time is 2-5 h, and the temperature is naturally reduced to the room temperature.
Compared with the prior art, the invention has the beneficial technical effects that:
the invention designs a new stopper rod material and a production process, wherein part of zirconia is added into the conventional material to replace aluminum-magnesium spinel, and Si is added 3 N 4 And BN strengthens the oxidation resistance and the thermal shock resistance of the material, improves the production process to reduce the porosity of the material and reduce the pore diameter of the pores, and greatly improves the erosion resistance of the stopper rod.
According to the invention, the stopper rod can be used in high-phosphorus amorphous alloy steel water for more than 20 hours, and the product quality is not influenced or production interruption is not caused due to the transitional corrosion problem, so that the finished product quality and the production efficiency of the amorphous strip are greatly improved.
Detailed Description
A stopper rod for producing high-phosphorus amorphous alloy comprises the following raw materials in percentage by mass: zirconium oxide: 5-20%, white corundum: 40 to 70%, graphite: 10-35%, phenolic resin 5-12%, si 3 N 4 :0 to 5%, BN:0 to 5 percent. The granularity of the zirconia is 200 meshes and 325 meshes, and the weight ratio of two granularity raw materials is 2. The white corundum has the granularity of +30 meshes, +80 meshes and 200 meshes, and the weight ratio of three granularity raw materials is 2. The graphite has the granularity of +100 meshes and the purity of not less than 99 percent. The particle size of the phenolic resin is-325 meshes. Said Si 3 N 4 The particle size is 200 meshes, and the purity is not less than 98%. The granularity of the BN is 200 meshes, and the purity is not less than 98%.
A manufacturing method of a stopper rod for producing high-phosphorus amorphous alloy comprises the steps of raw material mixing, isostatic pressing, curing, sintering and processing to obtain a finished product; wherein: in the isostatic pressing process, the pressure increasing rate is less than 5MPa/min, the highest pressure is 80-120 MPa, the pressure maintaining time is 5-10 min, and the pressure reducing rate is reduced to the normal pressure at the pressure of less than 5 MPa/min; in the curing process, the heating rate is less than 5 ℃/min, the highest temperature is 280-300 ℃, the heat preservation time is 2-5 h, and the temperature is naturally reduced to the room temperature;
in the firing process, firing is carried out under the protection of nitrogen, the heating rate is less than 5 ℃/min, the highest temperature is 900-1100 ℃, the heat preservation time is 2-5 h, and the temperature is naturally reduced to the room temperature.
To illustrate the effect of the composition and method of making the stopper rod of the present invention on the performance, the performance of the specific comparative examples and examples are shown in table 1 below:
TABLE 1 ingredients and effects of use of comparative and example
Table 1 above, the stopper rod made of the composition according to the present invention in each example has excellent erosion resistance, and can be continuously used for more than 20 hours under the condition of satisfying the flow control.
The comparative and example end products for the process of making the stopper rod of table 1 for the compositions of the stopper rods of examples 1-4 are given in table 2 below:
table 2 comparative and example methods of making and end product conditions
It can be seen that the apparent porosity of the finished product is less than 13%, so that the product quality is not affected or production interruption is not caused due to the transitional corrosion problem, and the finished product quality and the production efficiency of the amorphous strip are greatly improved.
The above-described embodiments are only intended to illustrate the preferred embodiments of the present invention, and not to limit the 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 spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (8)
1. The stopper rod for producing the high-phosphorus amorphous alloy is characterized by comprising the following raw materials in percentage by mass: zirconium oxide: 5-20%, white corundum: 40-70%, graphite: 10-35%, phenolic resin 5-12%, si 3 N 4 ：0～5％，BN：0～5％。
2. The stopper rod for producing the high-phosphorus amorphous alloy according to claim 1, wherein the zirconia has the grain sizes of 200 meshes and 325 meshes, and the weight ratio of two grain sizes is 2.
3. The stopper rod for producing the high-phosphorus amorphous alloy according to claim 1, wherein the white corundum has the grain size of +30 meshes, +80 meshes and 200 meshes, and the weight ratio of three grain size raw materials is 2.
4. The stopper rod for producing high-phosphorus amorphous alloy according to claim 1, wherein the graphite has a particle size of +100 meshes and a purity of > 99%.
5. The stopper rod for producing high-phosphorus amorphous alloy according to claim 1, wherein the phenolic resin particle size is-325 mesh.
6. Stopper rod for the production of high-phosphorus amorphous alloys, according to claim 1, characterized in that said Si 3 N 4 The granularity is 200 meshes, and the purity is not less than 98 percent.
7. The stopper rod for producing high-phosphorus amorphous alloy according to claim 1, wherein the BN has a particle size of 200 meshes and a purity of 98% or more.
8. The manufacturing method of the stopper rod for the production of the high-phosphorus amorphous alloy according to claim 1, wherein the manufacturing steps are raw material mixing, isostatic pressing, curing, firing and processing to obtain a finished product;
wherein:
in the isostatic pressing process, the pressure increasing rate is less than 5MPa/min, the highest pressure is 80-120 MPa, the pressure maintaining time is 5-10 min, and the pressure reducing rate is reduced to the normal pressure at the pressure of less than 5 MPa/min;
in the curing process, the heating rate is less than 5 ℃/min, the highest temperature is 280-300 ℃, the heat preservation time is 2-5 h, and the temperature is naturally reduced to the room temperature;
in the sintering process, the sintering is carried out under the protection of nitrogen, the heating rate is less than 5 ℃/min, the highest temperature is 900-1100 ℃, the heat preservation time is 2-5 h, and the temperature is naturally reduced to the room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211419389.4A CN115673306B (en) | 2022-11-14 | 2022-11-14 | Plug rod for producing high-phosphorus amorphous alloy and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211419389.4A CN115673306B (en) | 2022-11-14 | 2022-11-14 | Plug rod for producing high-phosphorus amorphous alloy and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115673306A true CN115673306A (en) | 2023-02-03 |
| CN115673306B CN115673306B (en) | 2023-07-21 |
Family
ID=85052323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211419389.4A Active CN115673306B (en) | 2022-11-14 | 2022-11-14 | Plug rod for producing high-phosphorus amorphous alloy and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115673306B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5215947A (en) * | 1990-10-11 | 1993-06-01 | Savoie Refractaires | Refractory parts for devices for regulation or interruption of a jet of steel, made of refractory material |
| US5338376A (en) * | 1992-06-05 | 1994-08-16 | Central Iron And Steel Research Institute | Iron-nickel based high permeability amorphous alloy |
| JPH07303958A (en) * | 1994-05-12 | 1995-11-21 | Shinagawa Refract Co Ltd | Nozzle for casting molten steel |
| WO2000074880A1 (en) * | 1999-06-08 | 2000-12-14 | Foseco International Limited | Stopper rod |
| CN102489695A (en) * | 2011-12-15 | 2012-06-13 | 北京利尔高温材料股份有限公司 | Oxide and non-oxide composite integral stopper rod |
| US20150298206A1 (en) * | 2012-04-16 | 2015-10-22 | Apple Inc. | Injection molding and casting of materials using a vertical injection molding system |
| WO2017036497A1 (en) * | 2015-08-28 | 2017-03-09 | Refractory Intellectual Property Gmbh & Co. Kg | Ceramic refractory stopper |
| CN207057615U (en) * | 2017-08-18 | 2018-03-02 | 江苏奥能耐火材料有限公司 | A kind of continuous casting current stabilization mouth of a river |
| CN109719264A (en) * | 2019-02-26 | 2019-05-07 | 安徽智磁新材料科技有限公司 | A kind of antirust amorphous alloy and preparation method thereof |
| CN112521159A (en) * | 2020-03-20 | 2021-03-19 | 山东晶亿新材料有限公司 | Boron nitride composite ceramic and preparation method and application thereof |
| CN114769573A (en) * | 2022-04-28 | 2022-07-22 | 马鞍山钢铁股份有限公司 | Stopper rod and method for preventing continuous casting low-temperature accident |
-
2022
- 2022-11-14 CN CN202211419389.4A patent/CN115673306B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5215947A (en) * | 1990-10-11 | 1993-06-01 | Savoie Refractaires | Refractory parts for devices for regulation or interruption of a jet of steel, made of refractory material |
| US5338376A (en) * | 1992-06-05 | 1994-08-16 | Central Iron And Steel Research Institute | Iron-nickel based high permeability amorphous alloy |
| JPH07303958A (en) * | 1994-05-12 | 1995-11-21 | Shinagawa Refract Co Ltd | Nozzle for casting molten steel |
| WO2000074880A1 (en) * | 1999-06-08 | 2000-12-14 | Foseco International Limited | Stopper rod |
| CN102489695A (en) * | 2011-12-15 | 2012-06-13 | 北京利尔高温材料股份有限公司 | Oxide and non-oxide composite integral stopper rod |
| US20150298206A1 (en) * | 2012-04-16 | 2015-10-22 | Apple Inc. | Injection molding and casting of materials using a vertical injection molding system |
| WO2017036497A1 (en) * | 2015-08-28 | 2017-03-09 | Refractory Intellectual Property Gmbh & Co. Kg | Ceramic refractory stopper |
| CN207057615U (en) * | 2017-08-18 | 2018-03-02 | 江苏奥能耐火材料有限公司 | A kind of continuous casting current stabilization mouth of a river |
| CN109719264A (en) * | 2019-02-26 | 2019-05-07 | 安徽智磁新材料科技有限公司 | A kind of antirust amorphous alloy and preparation method thereof |
| CN112521159A (en) * | 2020-03-20 | 2021-03-19 | 山东晶亿新材料有限公司 | Boron nitride composite ceramic and preparation method and application thereof |
| CN114769573A (en) * | 2022-04-28 | 2022-07-22 | 马鞍山钢铁股份有限公司 | Stopper rod and method for preventing continuous casting low-temperature accident |
Non-Patent Citations (1)
| Title |
|---|
| 中国冶金百科全书总编辑委员会《耐火材料》卷编辑委员会: "《中国冶金百科全书：耐火材料》", 冶金工业出版社, pages: 371 - 373 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115673306B (en) | 2023-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105945206B (en) | A kind of precoated sand resistant to high temperature | |
| CN104014252B (en) | A kind of preparation method of ceramic film support | |
| CN107746258B (en) | Ultralow-linear-change baking-free air brick and preparation method and application thereof | |
| CN104177108B (en) | Continuous casting flow control refractory materials and application thereof | |
| CN102085560A (en) | Graphite mixed sand | |
| CN110923498A (en) | Copper-based powder metallurgy friction material containing metal carbide and metal oxide composite ceramic friction component and preparation method thereof | |
| CN112624793A (en) | Preparation method of alumina-based porous ceramic material | |
| CN110540414A (en) | Preparation method of nano microporous corundum | |
| CN105364061B (en) | A kind of carbon-free submersed nozzle | |
| CN106007731B (en) | A kind of high tenacity ceramic nozzle material and preparation method thereof | |
| CN115673306B (en) | Plug rod for producing high-phosphorus amorphous alloy and manufacturing method thereof | |
| CN1410393A (en) | Preparation method of special foamed ceramic filter for magnesium alloy | |
| CN112094125B (en) | Low-thermal-conductivity low-thermal-expansion magnesium-based raw material and preparation method thereof | |
| CN116497293B (en) | High-temperature-resistant oxidation-resistant tungsten-lanthanum alloy wire and preparation method thereof | |
| CN113526965B (en) | Stopper rod for high-oxygen steel continuous casting | |
| CN113831111B (en) | Unfired aluminum-carbon sliding plate added with carbon fibers and preparation method thereof | |
| CN110090946B (en) | Core nozzle for thin strip continuous casting and manufacturing method thereof | |
| CN113307625A (en) | ZrO (ZrO)2-C fiber composite material and preparation method thereof | |
| CN114292089A (en) | Tundish dry material added with zircon powder and preparation method thereof | |
| CN113186569A (en) | High-corrosion-resistance metal ceramic inert anode material for aluminum electrolysis and preparation method thereof | |
| CN110871257B (en) | Preparation method and application of graphite activated ceramic surface layer slurry | |
| CN112371900A (en) | Preparation process of casting molding sand with excellent plasticity | |
| CN102898131B (en) | Aluminium titanate mullite composite monoblock stopper and preparation method thereof | |
| CN112321305B (en) | Multi-bubble ventilating element for refining steel ladle | |
| CN106927840B (en) | Thermal shock resistant complex phase ceramic material and preparation of ceramic discharge spout based on same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |