CN115544751A - Simulation research method for decarburization evolution in hot rolling process of strip steel - Google Patents
Simulation research method for decarburization evolution in hot rolling process of strip steel Download PDFInfo
- Publication number
- CN115544751A CN115544751A CN202211175532.XA CN202211175532A CN115544751A CN 115544751 A CN115544751 A CN 115544751A CN 202211175532 A CN202211175532 A CN 202211175532A CN 115544751 A CN115544751 A CN 115544751A
- Authority
- CN
- China
- Prior art keywords
- strip steel
- blank
- gas atmosphere
- steel intermediate
- hot rolling
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
- C21D3/02—Extraction of non-metals
- C21D3/04—Decarburising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/08—Thermal analysis or thermal optimisation
Abstract
The application relates to a simulation research method for decarburization evolution in a strip steel hot rolling process, which comprises the following steps: preparing a strip steel casting blank and a strip steel intermediate blank; heating the strip steel casting blank and all the strip steel intermediate blanks to a target temperature in a first gas atmosphere; cooling the strip steel casting blank and all the strip steel intermediate blanks; putting all the strip steel intermediate blanks into a heating furnace; carrying out decarburizing layer detection on the strip steel casting blank; respectively heating each strip steel intermediate blank to a corresponding target temperature in a first gas atmosphere; insulating each strip steel intermediate blank in a second gas atmosphere; cooling each strip steel intermediate blank; carrying out decarburizing layer detection on each strip steel intermediate blank; and outputting a detection report according to the detection result of the decarburized layer.
Description
Technical Field
The invention belongs to the technical field of hot rolling research of strip steel, and particularly relates to a simulation research method for decarburization evolution in a hot rolling process of strip steel.
Background
Decarburization of the billet occurs not only in the heating process but also in the cooling process, except that the cooling mode causes decarburized layers of different depths. The steel billet is heated, rolled, cooled and coiled in sequence in the hot rolling generation process, the whole production process is a continuous production mode, the steel billet only needs a short time from furnace feeding to rolling to coiling, and during the continuous production period, the steel billet cannot be sampled and analyzed in each key interval of a rolling line to analyze the change condition of a decarburizing layer, so that the decarburization evolution process of the strip steel in the hot rolling production process cannot be studied and analyzed deeply, and further, a solution for reducing the decarburizing layer of the strip steel in a targeted manner cannot be provided. How to clear the decarburization evolution of the strip steel in the hot rolling process becomes a technical problem in the industry.
Disclosure of Invention
In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a method for simulating decarburization evolution during hot rolling of a strip steel. ,
the embodiment of the application provides a simulation research method for decarburization evolution in a hot rolling process of strip steel, which comprises the following steps:
preparing a strip steel casting blank;
preparing the same number of strip steel intermediate billets according to the number of the hot rolling process temperature intervals;
heating the strip steel casting blank and all the strip steel intermediate blanks to a target temperature in a first gas atmosphere;
carrying out first cooling treatment on the strip steel casting blank and all the strip steel intermediate blanks;
carrying out decarburizing layer detection on the strip steel casting blank subjected to the first cooling treatment to obtain a first decarburizing layer detection result;
heating each strip steel intermediate blank subjected to the first cooling treatment to a corresponding target temperature in a first gas atmosphere, and preserving heat of each strip steel intermediate blank with the target temperature in a second gas atmosphere;
carrying out second cooling treatment on each strip steel intermediate blank;
performing decarburizing layer detection on each strip steel intermediate blank subjected to the second cooling treatment to obtain a second decarburizing layer detection result;
and outputting a detection report according to the first decarburized layer detection result and the second decarburized layer detection result so as to realize the analysis and research of the strip steel decarburizing transition process of the simulated hot rolling production line.
Optionally, the first gas atmosphere is an inert gas atmosphere.
Optionally, the tapping temperature for taking the strip steel casting blank and all the strip steel intermediate blanks out of the heating furnace is 1100 ℃ to 1300 ℃.
Optionally, the step of performing a first cooling treatment on the strip steel casting blank and all the strip steel intermediate blanks includes:
performing water quenching or air cooling on the strip steel casting blank and all the strip steel intermediate blanks;
removing iron oxide scales of the strip steel casting blank and all strip steel intermediate blanks;
and drying the strip steel casting blank and all the strip steel intermediate blanks to finish the first cooling treatment.
Optionally, the second gas atmosphere is a mixed gas of air and water vapor.
Optionally, the mass of the water vapor is 5% -30% of the air.
Optionally, the heat preservation temperature for preserving the heat of each strip steel intermediate blank subjected to the first cooling treatment in the second gas atmosphere is 500 ℃ to 1300 ℃.
Optionally, the heat preservation time for preserving the heat of each strip steel intermediate blank with the target temperature in the second gas atmosphere is 1min to 40min.
Optionally, the second cooling treatment of each strip steel intermediate billet comprises the following steps:
performing water quenching or air cooling on each strip steel intermediate billet;
removing the iron oxide scale of each strip steel intermediate blank;
and drying each strip steel intermediate blank to finish the second cooling treatment.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
the method provided by the embodiment of the application is suitable for the research work of the production quality basic technology of the hot rolling steel, and the strip steel decarburization evolution process of a hot rolling production line can be researched in real time after the method is implemented, so that the technical problem that the change condition of a decarburizing layer cannot be sampled and analyzed in each key interval of the rolling line in the continuous production mode of the whole hot rolling production process is solved, and a solid foundation is laid for thoroughly clearing the strip steel decarburization evolution condition in the hot rolling production process. The invention lays a solid foundation for the deeper technical research of the high carbon content or some special steel types in the hot rolling production process, and solves the technical problem that the special steel types can not sample and research the decarburized layer condition in each process interval in the continuous production process.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
FIG. 1 is a schematic flow chart of a simulation study method for decarburization evolution during hot rolling of a strip steel according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
FIG. 1 is a schematic flow chart of a simulation study method for decarburization evolution during hot rolling of a strip steel according to an embodiment of the present application.
The application provides a simulation research method for decarburization evolution in a strip steel hot rolling process, which comprises the following steps:
preparing a strip steel casting blank;
preparing the same number of strip steel intermediate billets according to the number of the temperature intervals of the hot rolling process;
heating the strip steel casting blank and all the strip steel intermediate blanks to a target temperature in a first gas atmosphere;
carrying out first cooling treatment on the strip steel casting blank and all the strip steel intermediate blanks;
performing decarburizing layer detection on the strip steel casting blank subjected to the first cooling treatment to obtain a first decarburizing layer detection result;
heating each strip steel intermediate blank subjected to the first cooling treatment to a corresponding target temperature in a first gas atmosphere, and preserving heat of each strip steel intermediate blank with the target temperature in a second gas atmosphere;
carrying out second cooling treatment on each strip steel intermediate blank;
performing decarburizing layer detection on each strip steel intermediate blank subjected to the second cooling treatment to obtain a second decarburizing layer detection result;
outputting a detection report according to the first decarburized layer detection result and the second decarburized layer detection result so as to realize the analysis and research of the process of simulating the decarburization evolution of the strip steel on the hot rolling production line
S1: preparing a strip steel casting blank;
specifically, in the embodiments of the present application, there are various ways of preparing the strip steel casting blanks, and cutting or pouring can be selected to be performed, and the number of the prepared strip steel casting blanks is 1.
S2: preparing the same number of strip steel intermediate billets according to the number of the temperature intervals of the hot rolling process;
specifically, in the embodiments of the present application, there are various ways of preparing the strip intermediate billets, and cutting or casting may be performed selectively, and the number of the strip intermediate billets is the same as the number of the hot rolling process temperature intervals, for example, if the number of the hot rolling process temperature intervals is 4, 4 strip intermediate billets are prepared.
S3: heating the strip steel casting blank and all the strip steel intermediate blanks to a target temperature in a first gas atmosphere
Specifically, in the embodiment of the present application, the heating furnace is filled with the first gas, and can be used to heat an object to be heated. After 1 strip steel casting blank and 4 strip steel intermediate blanks are prepared, the 1 strip steel casting blank and the 4 strip steel intermediate blanks can be placed into a heating furnace.
The first gas atmosphere is inert gas atmosphere, the heating furnace is filled with inert gas such as argon, and the inert gas can not react with the strip steel casting blank and the strip steel intermediate blank during heating and can also protect the strip steel casting blank and the strip steel intermediate blank and prevent the strip steel casting blank and the strip steel intermediate blank from reacting with gases such as air and oxygen under high temperature conditions.
And the discharging temperature of the heating furnace for taking the strip steel casting blank and all the strip steel intermediate blanks out is 1100-1300 ℃. It should be noted that when 1100 ℃ -1300 ℃ is selected as the tapping temperature, the heating temperature of the heating furnace is higher than or at least equal to 1100 ℃ -1300 ℃, and under the temperature, the strip steel casting blank and all strip steel intermediate blanks can fully simulate the process temperature under the actual condition to be fully heated, so that the subsequent analysis result is guaranteed to be real and reliable.
S4: carrying out first cooling treatment on the strip steel casting blank and all the strip steel intermediate blanks;
in an embodiment of the present application, the cooling process performed on the strip casting blank and all the strip intermediate blanks includes:
performing water quenching or air cooling on the strip steel casting blank and all the strip steel intermediate blanks;
removing iron scales of the strip steel casting blank and all strip steel intermediate blanks;
and drying the strip steel casting blank and all the strip steel intermediate blanks.
Specifically, in the embodiment of the application, after the strip steel casting blank and all the strip steel intermediate blanks are heated, in order to cool the strip steel casting blank and all the strip steel intermediate blanks, a water quenching or air cooling mode can be selected to act on the strip steel casting blank and all the strip steel intermediate blanks so as to take away heat on the strip steel casting blank and all the strip steel intermediate blanks, the temperature of the strip steel casting blank and all the strip steel intermediate blanks is reduced, then, a scraper is adopted to remove iron scales of the strip steel casting blank and all the strip steel intermediate blanks, reagents such as drying agents and the like are used for drying the strip steel casting blank and all the strip steel intermediate blanks so as to remove moisture on the surfaces of the strip steel casting blank and all the strip steel intermediate blanks, oxidation reaction between the strip steel casting blank and all the strip steel intermediate blanks and air is prevented, and the following analysis result is guaranteed to be real and reliable.
S5: performing decarburizing layer detection on the strip steel casting blank subjected to the first cooling treatment to obtain a first decarburizing layer detection result;
specifically, in the embodiment of the application, after the strip casting blank and all the strip intermediate blanks are dried, all the strip intermediate blanks are put into the heating furnace to wait for subsequent reaction, and the strip casting blank is subjected to decarburizing detection, so that first detection data can be obtained.
S6: heating each strip steel intermediate blank subjected to the first cooling treatment to a corresponding target temperature in a first gas atmosphere, and preserving heat of each strip steel intermediate blank with the target temperature in a second gas atmosphere;
specifically, in the present embodiment, since the number of the entire hot rolling process temperature zones is 4, which are a, B, C, and D, respectively, at this time, the target temperature inside the heating furnace is adjusted to a, 1 strip intermediate slab is heated in the first gas atmosphere, then the target temperature inside the heating furnace is adjusted to B, and 1 strip intermediate slab is heated in the first gas atmosphere, then the target temperature inside the heating furnace is adjusted to C, and 1 strip intermediate slab is heated in the first gas atmosphere, then the target temperature inside the heating furnace is adjusted to D, and 1 strip intermediate slab is heated in the first gas atmosphere, that is, the 4 strip intermediate slabs are subjected to the heating operation at the target temperatures of a, B, C, and D, respectively.
The second gas atmosphere is a mixed gas of air and water vapor. The mixed gas of air and steam and the strip steel are subjected to oxidation reaction at high temperature, and the sufficient oxidation reaction is continuously ensured under the condition of heat preservation.
In the embodiment of the application, the mass of the water vapor is 5-30% of the air.
Specifically, in the embodiment of the application, when the mass of the water vapor is 5-30% of that of the air, the sufficient oxidation reaction of the strip steel can be ensured.
In the embodiment of the application, the heat preservation temperature for preserving the heat of each strip steel intermediate blank in the second gas atmosphere is 500-1300 ℃.
In the embodiment of the application, the heat preservation time for preserving the heat of each strip steel intermediate blank in the second gas atmosphere is 1min-40min.
Specifically, in the embodiment of the application, when the heat preservation temperature is 500-1300 ℃ and the heat preservation time is 1-40 min, the sufficient oxidation reaction of the strip steel can be ensured.
S7: carrying out second cooling treatment on each strip steel intermediate blank;
in an embodiment of the present application, the cooling process performed on each strip steel intermediate billet includes the steps of:
performing water quenching on each strip steel intermediate billet;
removing the iron oxide scale of each strip steel intermediate blank;
and drying each strip steel intermediate blank.
Specifically, in the embodiment of the present application, after each strip steel intermediate billet is heated, in order to cool each strip steel intermediate billet at this time, a water quenching method may be selected to act on each strip steel intermediate billet to take away heat on each strip steel intermediate billet, reduce the temperature of each strip steel intermediate billet, remove iron scales of each strip steel intermediate billet by using a scraper, and dry each strip steel intermediate billet by using reagents such as a drying agent to remove moisture on the surface thereof, prevent each strip steel intermediate billet from undergoing an oxidation reaction with air, and ensure that a subsequent analysis result is true and reliable.
In an embodiment of the present application, the cooling process performed on each strip steel intermediate billet includes the steps of:
air cooling each strip steel intermediate blank;
removing the iron oxide scales of the strip steel intermediate billets;
and drying each strip steel intermediate blank.
Specifically, in the embodiment of the present application, after each strip steel intermediate billet is heated, in order to cool each strip steel intermediate billet at this time, an air cooling method may be selected to act on each strip steel intermediate billet to take away heat on each strip steel intermediate billet, so as to reduce the temperature of each strip steel intermediate billet, then a scraper is used to remove iron scales of each strip steel intermediate billet, and reagents such as a drying agent are used to dry each strip steel intermediate billet so as to remove moisture on the surface of each strip steel intermediate billet, so as to prevent each strip steel intermediate billet from undergoing an oxidation reaction with air, thereby ensuring that a subsequent analysis result is true and reliable.
S8: performing decarburizing layer detection on each strip steel intermediate blank subjected to the second cooling treatment to obtain a second decarburizing layer detection result;
s9: outputting a detection report according to the first decarburized layer detection result and the second decarburized layer detection result so as to realize the analysis and research of the strip steel decarburizing evolution process of the simulated hot rolling production line
Specifically, in the embodiment of the application, after each strip steel intermediate billet is dried, each strip steel intermediate billet is subjected to decarburizing detection, so that second detection data can be obtained, and a detection report can be obtained by collecting the obtained first detection data.
Example 1:
according to the temperature range of each process interval in the actual hot rolling production, a built experimental furnace platform is utilized to work out the tapping temperature of a casting blank and an intermediate blank sample of 1100-1300 ℃, the heat preservation temperature of 300-500 ℃, the protective atmosphere during heat preservation is inert gas for preventing oxidation and decarburization, the heat preservation time under the air atmosphere is 1-40 min, and the number of corresponding steel grade sample blocks is manufactured in advance according to the number of the process temperature intervals to be simulated, and the weighing record before the experiment is carried out.
In each experiment, the polished intermediate billet sample and the casting billet sample are heated to the tapping temperature, taken out together for water quenching or air cooling, and the iron scale is removed and dried.
And (5) carrying out decarburized layer detection on the casting blank sample.
And putting the rest intermediate blank samples into a furnace together, continuously heating to the target temperature in a full protective gas atmosphere, switching to heat preservation according to the target temperature under the atmosphere condition of air and water vapor (5-30%), immediately performing water quenching or air cooling, removing iron scales, drying, and reserving a sample for decarburizing layer detection. And (4) repeating the experimental process of the rest intermediate blank samples according to different process interval temperatures of the rolling line. After all the samples are detected, the analysis research of the process of simulating the decarburization evolution of the strip steel of the hot rolling production line can be realized.
The method for simulating and researching decarburization evolution in the strip steel hot rolling process is suitable for basic technology research work of hot rolling steel production quality, and real-time research can be carried out on the strip steel decarburization evolution process of a hot rolling production line after implementation, so that the technical problem that the change condition of a decarburization layer cannot be sampled and analyzed in each key interval of a rolling line in a continuous production mode of the whole hot rolling production process is solved, and a solid foundation is laid for thoroughly finding out the strip steel evolution decarburization condition in the hot rolling production process. The invention lays a solid foundation for the deeper technical research of the high carbon content or some special steel types in the hot rolling production process, and solves the technical problem that the special steel types can not sample and research the decarburized layer condition in each process interval in the continuous production process.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A simulation research method for decarburization evolution in a hot rolling process of strip steel is characterized by comprising the following steps:
preparing a strip steel casting blank;
preparing the same number of strip steel intermediate billets according to the number of the temperature intervals of the hot rolling process;
heating the strip steel casting blank and all the strip steel intermediate blanks to a target temperature in a first gas atmosphere;
carrying out first cooling treatment on the strip steel casting blank and all the strip steel intermediate blanks;
carrying out decarburizing layer detection on the strip steel casting blank subjected to the first cooling treatment to obtain a first decarburizing layer detection result;
heating each strip steel intermediate blank subjected to the first cooling treatment to a corresponding target temperature in a first gas atmosphere, and preserving heat of each strip steel intermediate blank with the target temperature in a second gas atmosphere;
carrying out second cooling treatment on each strip steel intermediate blank;
performing decarburizing layer detection on each strip steel intermediate blank subjected to the second cooling treatment to obtain a second decarburizing layer detection result;
and outputting a detection report according to the first decarburized layer detection result and the second decarburized layer detection result so as to realize the analysis and research of the strip steel decarburizing transition process of the simulated hot rolling production line.
2. The method of claim 1, wherein the first gas atmosphere is an inert gas atmosphere.
3. The method for simulating and researching decarburization evolution in the hot rolling process of strip steel as claimed in claim 1, wherein the tapping temperature of the furnace for taking out the strip steel billet and all the strip steel intermediate billets is 1100-1300 ℃.
4. The method for simulating and researching decarburization evolution during hot rolling of strip steel as claimed in claim 1, wherein the first cooling treatment of the strip steel billet and all the strip steel intermediate billets comprises the following steps:
performing water quenching or air cooling on the strip steel casting blank and all the strip steel intermediate blanks;
removing iron scales of the strip steel casting blank and all strip steel intermediate blanks;
and drying the strip steel casting blank and all the strip steel intermediate blanks to finish the first cooling treatment.
5. The method as claimed in claim 1, wherein the second gas atmosphere is a mixture of air and steam.
6. The method of claim 5, wherein the water vapor is 5-30% of the air by mass.
7. The method as claimed in claim 1, wherein the temperature of the intermediate slab of the strip after the first cooling process is maintained at 500 ℃ to 1300 ℃ in the second gas atmosphere.
8. The method as claimed in claim 1, wherein the holding time for holding each of the intermediate slabs having the target temperature in the second gas atmosphere is 1min to 40min.
9. The method as claimed in claim 1, wherein the step of performing the second cooling process on each of the intermediate slabs comprises the steps of:
performing water quenching or air cooling on each strip steel intermediate billet;
removing the iron oxide scales of the strip steel intermediate billets;
and drying each strip steel intermediate blank to finish the second cooling treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211175532.XA CN115544751A (en) | 2022-09-26 | 2022-09-26 | Simulation research method for decarburization evolution in hot rolling process of strip steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211175532.XA CN115544751A (en) | 2022-09-26 | 2022-09-26 | Simulation research method for decarburization evolution in hot rolling process of strip steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115544751A true CN115544751A (en) | 2022-12-30 |
Family
ID=84728976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211175532.XA Pending CN115544751A (en) | 2022-09-26 | 2022-09-26 | Simulation research method for decarburization evolution in hot rolling process of strip steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115544751A (en) |
-
2022
- 2022-09-26 CN CN202211175532.XA patent/CN115544751A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4021272A (en) | Method of isothermal annealing of band steels for tools and razor blades | |
| AU710053B2 (en) | Process for producing grain-oriented magnetic steel sheeting | |
| CN115544751A (en) | Simulation research method for decarburization evolution in hot rolling process of strip steel | |
| JPS5591945A (en) | Method and equipment for cooling of steel strip in continuous annealing line | |
| de Mello Cardoso et al. | Secondary recrystallization characteristics of 3% Si grain-oriented electrical steel | |
| CN111638154A (en) | Method for researching steel billet in heating section | |
| JP6946848B2 (en) | Manufacturing method of grain-oriented electrical steel sheet | |
| RU2003106405A (en) | METHOD FOR REGULATING THE DISTRIBUTION OF INHIBITORS IN THE PRODUCTION OF STRIPED TEXTURED ELECTRICAL STEEL | |
| Monroe et al. | Evaluating quenchants and facilities for hardening steel | |
| US4534801A (en) | Process for removing adhered substance from steel ingots | |
| Reti et al. | Quenchant performance analysis using computer simulation | |
| KR102610145B1 (en) | Method of determining grade for continuous casting slab | |
| JPS6332851B2 (en) | ||
| CN107543820A (en) | A kind of detection method of hot rolling bearing steel wire rod decarburized layer deepness | |
| JPS5852444B2 (en) | Method for suppressing steel billet surface cracking during hot rolling | |
| JP2001181735A (en) | Quenching method for steel | |
| CN117929437A (en) | Surface crack detection analysis method for H-shaped steel | |
| Gierzynska‐Dolna et al. | Influence of the lubricant on temperature distribution in the forging dies | |
| SU850689A1 (en) | Method of heating carbon steel billets for hot pressure working | |
| JPS5655520A (en) | Production of surface decarbonized high carbon steel strip | |
| RU2090631C1 (en) | Method of investigation of conversions at thermal treatment | |
| CN114563400A (en) | Analysis method for element distribution rule in high manganese steel | |
| SU840143A1 (en) | Method of annealing isotropic electroengineering steel | |
| Motoyama et al. | Residual stress measurements in case-hardened steels | |
| PL118030B1 (en) | Method of silicon steel annealing,especially of steel with boron addition dobavkojj bora |
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 |