CN114769540A - Production method of high-grade non-oriented silicon steel casting blank - Google Patents
Production method of high-grade non-oriented silicon steel casting blank Download PDFInfo
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- CN114769540A CN114769540A CN202210449957.9A CN202210449957A CN114769540A CN 114769540 A CN114769540 A CN 114769540A CN 202210449957 A CN202210449957 A CN 202210449957A CN 114769540 A CN114769540 A CN 114769540A
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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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
Abstract
The embodiment of the application provides a production method of a high-grade non-oriented silicon steel casting blank, which comprises the following steps: acquiring the actually measured tundish temperature of the high-grade non-oriented silicon steel molten steel and acquiring the weight percentage of each element in the high-grade non-oriented silicon steel molten steel; obtaining a high-grade non-oriented silicon steel casting blank shrinkage model; predicting the shrinkage rate of the high-grade non-oriented silicon steel casting blank through the high-grade non-oriented silicon steel casting blank shrinkage model based on the tundish temperature and the weight percentage; and determining the technological parameters of casting blank production according to the shrinkage rate, and producing the high-grade non-oriented silicon steel casting blank according to the technological parameters. According to the method, the shrinkage rate of the high-grade non-oriented silicon steel casting blank can be predicted through the high-grade non-oriented silicon steel casting blank shrinkage model, the technological parameters of casting blank production are determined, the high-grade non-oriented silicon steel casting blank is produced, the investment of detection equipment can be reduced, the production cost is reduced, the lag of a measuring result can be avoided, and silicon steel production can be smoothly carried out.
Description
Technical Field
The application relates to the technical field of silicon steel production, in particular to a production method of a high-grade non-oriented silicon steel casting blank.
Background
Continuous casting steel is the key to the production of silicon steel. However, in the continuous casting process, there is a problem that the cast slab shrinks. The shrinkage of the casting blank not only influences the quality of the formed continuous casting blank, but also is an important basis for adjusting and setting the parameters of the subsequent silicon steel production process.
The traditional production of high-grade non-oriented silicon steel casting blanks generally adopts an instrument to actually measure the shrinkage rate of the casting blanks. However, in actual operation, the measurement result often has hysteresis, fluctuation and randomness, and the measurement result depends on the sample itself, the measurement precision of the device and the data reading mode. In earlier stage, not only need invest a large amount of money and be used for measuring equipment or instrument's installation, maintenance, the later stage still needs a large amount of time to calibrate measuring result, is unfavorable for enterprise's production.
Therefore, how to efficiently and accurately obtain the shrinkage rate of the casting blank so that the silicon steel production can be smoothly carried out is an urgent technical problem to be solved.
Disclosure of Invention
The embodiment of the application provides a production method of a high-grade non-oriented silicon steel casting blank, which can predict the shrinkage rate of the high-grade non-oriented silicon steel casting blank through a high-grade non-oriented silicon steel casting blank shrinkage model, determine the technological parameters of casting blank production, produce the high-grade non-oriented silicon steel casting blank, reduce the investment of detection equipment, reduce the production cost, avoid the lag of a measurement result and enable the silicon steel production to be smoothly carried out.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.
According to an aspect of embodiments of the present application, there is provided a method of producing a high-grade non-oriented silicon steel ingot, the method including: acquiring the actually measured tundish temperature of the high-grade non-oriented silicon steel molten steel and the weight percentage of each element in the high-grade non-oriented silicon steel molten steel; obtaining a high-grade non-oriented silicon steel casting blank shrinkage model; predicting the shrinkage rate of the high-grade non-oriented silicon steel casting blank through the high-grade non-oriented silicon steel casting blank shrinkage model based on the tundish temperature and the weight percentage; and determining the technological parameters of casting blank production according to the shrinkage rate, and producing the high-grade non-oriented silicon steel casting blank according to the technological parameters.
In some embodiments of the present application, based on the foregoing solution, the high-grade non-oriented silicon steel billet shrinkage model includes: the high-grade non-oriented silicon steel casting blank shrinkage model comprises:
wherein, delta represents the shrinkage rate of the high-grade non-oriented silicon steel casting blank; p isCRepresents the weight percentage of carbon element in the high-grade non-oriented silicon steel liquid; pSiThe weight percentage of silicon elements in the high-grade non-oriented silicon steel liquid steel is shown; p isMnThe weight percentage of manganese element in the high-grade non-oriented silicon steel liquid steel is shown; pPRepresents the weight percentage of phosphorus in the high-grade non-oriented silicon steel liquid; p isSRepresents the weight percentage of sulfur in the high-grade non-oriented silicon steel liquid; p isAlThe weight percentage of aluminum elements in the high-grade non-oriented silicon steel liquid steel is shown; t represents the actually measured tundish temperature of the high-grade non-oriented silicon steel molten steel; and t represents the theoretical liquidus temperature of the high-grade non-oriented silicon steel.
In some embodiments of the present application, based on the foregoing solution, the predicting the shrinkage rate of the high-grade non-oriented silicon steel billet through the high-grade non-oriented silicon steel billet shrinkage model based on the tundish temperature and the weight percentage comprises: judging whether the weight percentages of the elements in the high-grade non-oriented silicon steel molten steel belong to corresponding percentage application intervals or not; and if the weight percentage of each element in the high-grade non-oriented silicon steel liquid belongs to the corresponding percentage application interval, predicting the shrinkage rate of the high-grade non-oriented silicon steel casting blank through the high-grade non-oriented silicon steel casting blank shrinkage model based on the tundish temperature and the weight percentage.
In some embodiments of the present application, based on the foregoing scheme, the applicable range of the percentage of the carbon element is 0-0.0030%.
In some embodiments of the present application, based on the foregoing scheme, the applicable range of percentage of the silicon element is 1.70% to 3.60%.
In some embodiments of the present application, based on the above scheme, the applicable range of the percentage of the manganese element is 0-1.0%.
In some embodiments of the present application, based on the above scheme, the applicable range of percentage of the phosphorus element is 0-0.050%.
In some embodiments of the present application, the applicable range of the percentage of the sulfur element is 0-0.0050% based on the above solution.
In some embodiments of the present application, based on the above scheme, the applicable range of the percentage of the aluminum element is 0 to 1.50%.
In some embodiments of the present application, based on the foregoing scheme, the process parameters of the casting blank production at least include a crystallizer parameter, a taper parameter, and a cooling water distribution parameter;
determining the technological parameters of casting blank production according to the shrinkage rate, wherein the technological parameters comprise:
determining the required size of the high-grade non-oriented silicon steel casting blank;
and determining the technological parameters of the casting blank production according to the required size and the shrinkage rate.
In the technical scheme provided by some embodiments of the application, in the continuous casting process, the actually measured tundish temperature of the high-grade non-oriented silicon steel molten steel is obtained, and the weight percentage of each element in the high-grade non-oriented silicon steel molten steel is obtained; predicting the shrinkage rate of the high-grade non-oriented silicon steel casting blank through the high-grade non-oriented silicon steel casting blank shrinkage model; according to the shrinkage rate, determining the technological parameters of casting blank production, and producing the high-grade non-oriented silicon steel casting blank, so that the investment of detection equipment can be reduced, the production cost can be reduced, the lag of the measurement result can be avoided, the silicon steel production can be smoothly carried out, and the quality of the produced high-grade non-oriented silicon steel casting blank is further improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 shows a flow chart of a method for producing a high-grade non-oriented silicon steel billet according to one embodiment of the present application.
Figure 2 shows a graph comparing the results of an experiment using one embodiment of the present application.
Figure 3 shows a comparison of the results of an experiment using another example of the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.
The flowcharts shown in the figures are illustrative only and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
The implementation details of the technical solution of the embodiment of the present application are set forth in detail below:
fig. 1 shows a flow chart of a method for producing a high-grade non-oriented silicon steel billet according to one embodiment of the present application.
Referring to fig. 1, the method for producing the high-grade non-oriented silicon steel casting blank at least comprises the following steps 101 to 104, which are described in detail as follows:
in step 101, the actually measured tundish temperature of the high-grade non-oriented silicon steel molten steel and the weight percentage of each element in the high-grade non-oriented silicon steel molten steel are obtained.
In this application, can acquire the actual measurement package temperature of high-grade non-oriented silicon steel molten steel through temperature measuring device.
In the present application, elements in the high-grade non-oriented silicon steel molten steel may include carbon, silicon, manganese, phosphorus, sulfur, aluminum, and other alloy elements.
In one embodiment of the present application, the weight percentage of each element in the high-grade non-oriented silicon steel molten steel may be a preset known value, or may be obtained by a measuring device in an actual production process.
With continued reference to fig. 1, in step 102, a high-grade non-oriented silicon steel billet shrinkage model is obtained.
In this application, the high-grade non-oriented silicon steel casting blank shrink model can include:
wherein, delta represents the shrinkage rate of the high-grade non-oriented silicon steel casting blank; pCRepresents the weight percentage of carbon element in the high-grade non-oriented silicon steel liquid steel; pSiRepresents the weight percentage of silicon element in the high-grade non-oriented silicon steel liquid; pMnThe weight percentage of manganese element in the high-grade non-oriented silicon steel liquid steel is shown; p isPRepresents the weight percentage of phosphorus in the high-grade non-oriented silicon steel liquid; pSThe weight percentage of sulfur in the high-grade non-oriented silicon steel liquid is shown; p isAlRepresents the weight percentage of aluminum element in the high-grade non-oriented silicon steel liquid; t represents the actually measured tundish temperature of the high-grade non-oriented silicon steel molten steel; and t represents the theoretical liquidus temperature of the high-grade non-oriented silicon steel.
In one embodiment of the present application, if the weight percentage of carbon element and silicon element in the high-grade non-oriented silicon steel molten steel is higher, the shrinkage rate of the high-grade non-oriented silicon steel casting blank is lower; if the weight percentage of sulfur in the high-grade non-oriented silicon steel molten steel is higher, the shrinkage rate of the high-grade non-oriented silicon steel casting blank is higher; if the weight percentage of aluminum elements in the high-grade non-oriented silicon steel molten steel is higher, the shrinkage rate of the high-grade non-oriented silicon steel casting blank is lower; if the weight percentage of the manganese element in the high-grade non-oriented silicon steel molten steel is higher, the manganese element is combined with the sulfur element to form manganese sulfide within a certain range, the shrinkage rate of the high-grade non-oriented silicon steel casting blank is lower, but when the weight percentage of the manganese element in the high-grade non-oriented silicon steel molten steel exceeds the range, the shrinkage rate of the high-grade non-oriented silicon steel casting blank is higher.
It should be noted that, if the elements in the high-grade non-oriented silicon steel liquid further include other alloy elements except for carbon, silicon, manganese, phosphorus, sulfur, and aluminum, the other alloy elements do not greatly affect the shrinkage rate of the casting blank, so the weight percentages of the other alloy elements may not be included in the calculation in the high-grade non-oriented silicon steel casting blank shrinkage model.
In addition, because the weight percentage of silicon element and the weight percentage of carbon element in the high-grade non-oriented silicon steel molten steel are high, the influence of the metal phase transition process on the shrinkage rate of the casting blank is not large, and the calculation can not be included in the high-grade non-oriented silicon steel casting blank shrinkage model.
In another embodiment of the application, if the theoretical liquidus temperature of the high-grade non-oriented silicon steel is 1560 ℃, then the best effect range of the actually measured tundish temperature of the molten high-grade non-oriented silicon steel can be 1560 ℃ to 1565 ℃, and when the actually measured tundish temperature is in the temperature range, the influence of the tundish temperature on the shrinkage rate of the casting blank of the high-grade non-oriented silicon steel can be almost ignored according to the formula.
It should be noted that the optimum value of the actually measured tundish temperature may be 1560 ℃, and the influence on the shrinkage rate of the silicon steel casting blank is not high at the casting temperature value.
Furthermore, when the deviation between the theoretical liquidus temperature and the actually measured tundish temperature of the high-grade non-oriented silicon steel is less than or equal to 5 ℃, the casting temperature value has no high influence on the shrinkage rate of the silicon steel casting blank.
Continuing to refer to fig. 1, in step 103, predicting the shrinkage rate of the high-grade non-oriented silicon steel casting blank through the high-grade non-oriented silicon steel casting blank shrinkage model based on the tundish temperature and the weight percentage.
In the present application, before predicting the shrinkage rate of the high-grade non-oriented silicon steel billet through the high-grade non-oriented silicon steel billet shrinkage model based on the tundish temperature and the weight percentage, the following steps S1 to S2 may be performed:
and step S1, judging whether the weight percentages of the elements in the high-grade non-oriented silicon steel molten steel belong to corresponding percentage application intervals.
Step S2, if the weight percentage of each element in the high-grade non-oriented silicon steel casting blank belongs to the corresponding percentage application interval, predicting the shrinkage rate of the high-grade non-oriented silicon steel casting blank through the high-grade non-oriented silicon steel casting blank shrinkage model based on the tundish temperature and the weight percentage.
In step S1, the corresponding percentage applicable interval may include: the percentage applicable range corresponding to carbon element is 0-0.0030%, the percentage applicable range corresponding to silicon element is 1.70-3.60%, the percentage applicable range corresponding to manganese element is 0-1.0%, the percentage applicable range corresponding to phosphorus element is 0-0.050%, the percentage applicable range corresponding to sulfur element is 0-0.0050%, and the percentage applicable range corresponding to aluminum element is 0-1.50%.
In step S2, the weight percentage of each element in the high-grade non-oriented silicon steel molten steel and the percentage applicable interval of the corresponding element may be compared.
If the weight percentage of each element in the high-grade non-oriented silicon steel casting blank is judged to be in the percentage application interval of the corresponding element, the shrinkage rate of the high-grade non-oriented silicon steel casting blank can be predicted through the high-grade non-oriented silicon steel casting blank shrinkage model based on the tundish temperature and the weight percentage.
In the application, the inventor finds that when the weight percentages of all elements in the high-grade non-oriented silicon steel casting blank are in the percentage application range of the corresponding elements through a plurality of tests, the accuracy rate of predicting the shrinkage rate of the high-grade non-oriented silicon steel casting blank through the high-grade non-oriented silicon steel casting blank shrinkage model is high, and the prediction effect is good.
However, it should be noted that if the weight percentage of each element in the high-grade non-oriented silicon steel casting is not in the percentage application interval of the corresponding element, the shrinkage rate of the high-grade non-oriented silicon steel casting may be predicted by using the high-grade non-oriented silicon steel casting shrinkage model based on the tundish temperature and the weight percentage.
Continuing to refer to fig. 1, in step 104, according to the shrinkage rate, determining the process parameters of casting blank production, and producing a high-grade non-oriented silicon steel casting blank according to the process parameters.
In the present application, determining the process parameters for producing the casting blank according to the shrinkage rate may be performed according to the following steps D1 to D2:
and D1, determining the required size of the high-grade non-oriented silicon steel casting blank.
And D2, determining the technological parameters of casting blank production according to the required size and the shrinkage rate.
In step D1, the desired dimensions of the high-grade non-oriented silicon steel ingot may include billet and slab.
In step D2, determining the process parameters of the casting blank production according to the required size and the shrinkage rate.
In the present application, the process parameters for producing the casting blank at least include a crystallizer parameter, a taper parameter, a cooling water distribution parameter, and may further include a roll row design parameter.
Specifically, in an embodiment of the present application, first, the process parameters required in the subsequent casting blank production may be determined according to the required size and the shrinkage rate. Then, according to the process parameters, the taper setting of the crystallizer of the continuous casting machine can be adjusted, the cooling water quantity can be redistributed, and the roll column can be redesigned. Therefore, the process parameters of casting blank production are determined based on the predicted shrinkage rate, the high-grade non-oriented silicon steel casting blank is produced, the investment of detection equipment can be reduced, the production cost is reduced, the lag of the measurement result can be avoided, the silicon steel production is smooth, and the quality of the produced high-grade non-oriented silicon steel casting blank is further improved.
In order to make the technical solution of the present application more advanced, the inventor will now obtain experimental data with reference to fig. 1 and 2.
Figure 2 shows a graph comparing the results of an experiment using one embodiment of the present application.
Referring to fig. 2, in one embodiment of the present application, during the casting blank production process, firstly, the shrinkage rate of the high-grade non-oriented silicon steel casting blank is predicted to be 0.9747 according to the shrinkage model of the high-grade non-oriented silicon steel casting blank, as shown by the dotted line; and then, randomly selecting 98 sample points, and detecting the shrinkage rate of the high-grade non-oriented silicon steel casting blank of the sample points through a detection device, wherein the detection result is black points as shown in the figure.
Furthermore, it can be shown that in the production method of the high-grade non-oriented silicon steel casting blank according to one embodiment of the present application, the shrinkage rate of the high-grade non-oriented silicon steel casting blank is obtained through prediction by a high-grade non-oriented silicon steel casting blank shrinkage model, and the obtained prediction result has high efficiency and accuracy, so that the smooth production process is facilitated.
Referring to fig. 3, fig. 3 is a graph showing a comparison of the results of an experiment using another example of the present application.
Referring to fig. 3, in another embodiment of the present application, during the billet production process, firstly, the shrinkage rate of the high-grade non-oriented silicon steel billet is predicted to be 0.9390 according to the shrinkage model of the high-grade non-oriented silicon steel billet, as shown by the dotted line; and then, randomly selecting 100 sample points, and detecting the shrinkage rate of the high-grade non-oriented silicon steel casting blank of the sample points through a detection device, wherein the detection result is black points as shown in the figure.
Furthermore, it can be shown that in the production method of the high-grade non-oriented silicon steel casting blank according to another embodiment of the present application, the shrinkage rate of the high-grade non-oriented silicon steel casting blank is obtained through prediction by a high-grade non-oriented silicon steel casting blank shrinkage model, and the obtained prediction result has high efficiency and accuracy, so that the smooth production process is facilitated.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A production method of a high-grade non-oriented silicon steel casting blank is characterized by comprising the following steps:
acquiring the actually measured tundish temperature of the high-grade non-oriented silicon steel molten steel and acquiring the weight percentage of each element in the high-grade non-oriented silicon steel molten steel;
obtaining a high-grade non-oriented silicon steel casting blank shrinkage model;
predicting the shrinkage rate of the high-grade non-oriented silicon steel casting blank through the high-grade non-oriented silicon steel casting blank shrinkage model based on the tundish temperature and the weight percentage;
and determining the technological parameters of casting blank production according to the shrinkage rate, and producing the high-grade non-oriented silicon steel casting blank according to the technological parameters.
2. The method of claim 1, wherein the high-grade non-oriented silicon steel strand shrinkage model comprises:
wherein, delta represents the shrinkage rate of the high-grade non-oriented silicon steel casting blank; pCRepresents the weight percentage of carbon element in the high-grade non-oriented silicon steel liquid steel; pSiRepresents the weight percentage of silicon element in the high-grade non-oriented silicon steel liquid; pMnRepresents the weight percentage of manganese element in the high-grade non-oriented silicon steel liquid; p isPThe weight percentage of phosphorus in the high-grade non-oriented silicon steel liquid steel is shown; pSRepresents the weight percentage of sulfur in the high-grade non-oriented silicon steel liquid; pAlRepresents the weight percentage of aluminum element in the high-grade non-oriented silicon steel liquid; t represents the actually measured tundish temperature of the high-grade non-oriented silicon steel molten steel; t represents the theoretical liquidus temperature of high-grade non-oriented silicon steelAnd (4) degree.
3. The method according to claim 2, wherein the predicting the shrinkage of the billet of high-grade non-oriented silicon steel based on the tundish temperature and the weight percentage by the billet shrinkage model of high-grade non-oriented silicon steel comprises:
judging whether the weight percentages of the elements in the high-grade non-oriented silicon steel molten steel belong to corresponding percentage application intervals or not;
and if the weight percentage of each element in the high-grade non-oriented silicon steel liquid belongs to the corresponding percentage application interval, predicting the shrinkage rate of the high-grade non-oriented silicon steel casting blank through the high-grade non-oriented silicon steel casting blank shrinkage model based on the tundish temperature and the weight percentage.
4. The method of claim 3, wherein the percentage applicable interval corresponding to the carbon element is 0-0.0030%.
5. The method according to claim 3, wherein the percentage applicable interval corresponding to the silicon element is 1.70% -3.60%.
6. The method according to claim 3, wherein the percentage of manganese is applicable within a range of 0-1.0%.
7. The method of claim 3, wherein the percentage applicable range for the phosphorus element is 0-0.050%.
8. The method according to claim 3, wherein the percentage applicable interval for elemental sulfur is 0-0.0050%.
9. The method according to claim 3, wherein the aluminum element is in a range of 0 to 1.50%.
10. The method according to claim 3, wherein the process parameters of strand production include at least crystallizer parameters, conicity parameters, cooling water distribution parameters;
determining the technological parameters of casting blank production according to the shrinkage rate, wherein the technological parameters comprise:
determining the required size of the high-grade non-oriented silicon steel casting blank;
and determining the technological parameters of the casting blank production according to the required size and the shrinkage rate.
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| CN110523942A (en) * | 2019-08-29 | 2019-12-03 | 邢台钢铁有限责任公司 | A kind of control method improving high-carbon-chromium bearing steel bloom internal flaw |
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| JPH09262653A (en) * | 1996-03-28 | 1997-10-07 | Nippon Steel Corp | Method for estimating surface layer thickness of plural layer cast slab |
| JP2004082150A (en) * | 2002-08-26 | 2004-03-18 | Furukawa Electric Co Ltd:The | Continuous casting method |
| DE102015215328A1 (en) * | 2015-08-11 | 2017-02-16 | Sms Group Gmbh | A method of continuously casting a metal strand and determining the shrinkage of a continuously cast metal strand |
| CN106001478A (en) * | 2016-07-08 | 2016-10-12 | 首钢总公司 | Formulating method of slab continuous casting machine foundation roller gap technology |
| CN109877287A (en) * | 2019-03-05 | 2019-06-14 | 北京科技大学 | A kind of method of hypo-peritectic steel Surface of Rod Bar fine cracks control |
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