CN113637839A - Heat treatment exception handling method - Google Patents
Heat treatment exception handling method Download PDFInfo
- Publication number
- CN113637839A CN113637839A CN202110889749.6A CN202110889749A CN113637839A CN 113637839 A CN113637839 A CN 113637839A CN 202110889749 A CN202110889749 A CN 202110889749A CN 113637839 A CN113637839 A CN 113637839A
- Authority
- CN
- China
- Prior art keywords
- treatment
- temperature
- time
- product
- heat treatment
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000032683 aging Effects 0.000 claims abstract description 38
- 238000010791 quenching Methods 0.000 claims abstract description 29
- 230000000171 quenching effect Effects 0.000 claims abstract description 28
- 239000006104 solid solution Substances 0.000 claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 9
- 239000000243 solution Substances 0.000 claims description 29
- 230000005856 abnormality Effects 0.000 claims description 12
- 238000007689 inspection Methods 0.000 claims description 3
- 238000012790 confirmation Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 238000003672 processing method Methods 0.000 claims 9
- 238000012163 sequencing technique Methods 0.000 claims 2
- 238000011161 development Methods 0.000 abstract description 3
- 230000018109 developmental process Effects 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 56
- 230000002159 abnormal effect Effects 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- 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
- C21D11/00—Process control or regulation for heat treatments
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Control Of Heat Treatment Processes (AREA)
Abstract
The invention discloses a heat treatment exception handling method, which comprises the following steps: step 1: measuring respective actual treatment temperature and actual treatment time of a heat-treated product on three stations of solid solution, gas quenching and aging respectively, wherein the actual treatment temperature comprises solid solution treatment temperature and aging treatment temperature, the actual treatment time comprises solid solution treatment time, gas quenching treatment time and aging treatment time, and the step 2: according to the comparison result of the actual processing temperature and the preset reference temperature and the actual processing time and the preset reference time, step 3: and outputting corresponding measures. According to the invention, the PLC is adopted to directly judge the abnormity of the three stations of the heat treatment solid solution, the gas quenching and the aging according to the time and the temperature, and the PLC directly outputs the corresponding measures according to the abnormity type, so that the time for treating the abnormity by a heat treatment engineer, a quality engineer and a development engineer is basically eliminated.
Description
Technical Field
The invention relates to the technical field of heat treatment, in particular to a heat treatment exception handling method.
Background
The current heat treatment exception handling mode is as follows: recording abnormal state, writing on the iron plate, isolating the product to be processed, and informing a heat treatment engineer, a quality engineer and a development engineer to judge. The processing process is very complicated, the consumed time is long, and the product is scrapped due to the fact that the record of the abnormal state is unclear frequently.
Disclosure of Invention
In view of the defects of the prior art, the invention provides a heat treatment exception handling method which can solve the problems of calculating exception types by adopting a PLC and providing a solution.
The technical scheme of the invention is as follows: a method for processing heat treatment abnormality comprises the steps of,
step 1: measuring the actual treatment temperature and the actual treatment time of the heat-treated product on three stations of solid solution, gas quenching and aging respectively, wherein the actual treatment temperature comprises the solid solution treatment temperature and the aging treatment temperature, and the actual treatment time comprises the solid solution treatment time, the gas quenching treatment time and the aging treatment time,
step 2: according to the comparison result of the actual processing temperature and the preset reference temperature and the actual processing time and the preset reference time,
and step 3: and outputting corresponding measures.
Further, the solution treatment time is shorter than the reference time, or the solution treatment temperature is lower than the reference temperature, or the process time between the transfer from the solution treatment station to the gas quenching station is longer than the reference time, or the gas quenching time is shorter than the reference time, or the aging treatment time is longer than the reference time, or the aging treatment temperature is higher than the reference temperature, or the aging treatment temperature is lower than the reference, and the measures are taken as follows: and carrying out secondary heat treatment.
Further, if the solution treatment time-reference time is less than or equal to a certain specific time, the measures are as follows: the product is normally processed; if the solid solution time-reference time is more than a certain specific time, the measures are taken as follows: and (5) measuring the hardness of the product, and checking the product after confirmation.
Furthermore, if the solution treatment temperature-reference temperature is less than or equal to a certain specific temperature, the measures are as follows: measuring the hardness of the product, wherein if the hardness is qualified, the product is normally in the order, and if the hardness is not qualified, the product is scrapped; the solution treatment temperature-reference temperature is more than a certain specific temperature, and the treatment is carried out according to the product scrap.
Furthermore, the solution treatment temperature is lower than the reference temperature in the solution treatment process, and measures are taken as follows: immediately resetting to correct temperature, keeping necessary temperature after reaching the temperature, continuously carrying out heat treatment according to operating conditions, measuring the hardness of the product, and if the hardness is qualified, carrying out normal sequence on the product, and if the hardness is not qualified, carrying out secondary heat treatment on the product.
Further, if the gas quenching treatment time-reference time is less than or equal to a certain specific time, the measures are taken as follows: continuing to perform aging treatment, and fully inspecting whether cracks and deformation exist in the product; if the gas quenching treatment time-reference time is more than a certain specific time, carrying out secondary heat treatment.
Furthermore, the temperature in the aging treatment process is lower than the reference temperature, and measures are taken as follows: and immediately resetting to the correct temperature, keeping the necessary temperature after the temperature is reached, continuously carrying out heat treatment, measuring the hardness of the product, and if the hardness is qualified, carrying out normal sequence treatment on the product, and if the hardness is not qualified, carrying out secondary heat treatment on the product.
Further, if the solution treatment and the aging treatment of the same product exceed 2 times, the heat-treated product needs to be scrapped.
Further, it is characterized in that: priority among the individual countermeasures: the corresponding measures comprise scrapping, secondary heat treatment, inspection and normal sequence passing, and the highest priority corresponding measure is output.
Further, the measures are remarked to the over-sequence card.
The invention has the beneficial effects that: according to the invention, the PLC is adopted to directly judge the abnormity of the three stations of the heat treatment solid solution, the gas quenching and the aging according to the time and the temperature, and the PLC directly outputs the corresponding measures according to the abnormity type, so that the time for treating the abnormity by a heat treatment engineer, a quality engineer and a development engineer is basically eliminated.
Drawings
FIG. 1 is a schematic diagram of thermal exception handling according to the present invention.
FIG. 2 is a schematic solid solution diagram of the present invention.
FIG. 3 is a schematic view of the gas quenching of the present invention.
FIG. 4 is a schematic illustration of the aging of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings and the detailed description below:
as shown in figure 1, the invention discloses a heat treatment exception handling method, product heat treatment needs to be respectively processed by three stations of solid solution, gas quenching and aging in sequence, each station is influenced by temperature and time factors, therefore, the exception type is calculated by adopting a PLC (programmable logic controller) after each station, and the temperature and the time of the three stations are monitored. The PLC calculates the abnormal type, compares the preset reference value with the actual value to determine whether the abnormal type is in an abnormal state, displays the corresponding measures or results through the touch screen and prints the corresponding measures or results into the sequence card, and facilitates related operators to directly process products according to the corresponding measures. The PLC is a programmable logic controller, belongs to the prior art, and adopts a programmable memory, the programmable memory stores instructions for executing operations such as logic operation, sequence control, timing, counting, arithmetic operation and the like, and various types of mechanical equipment or production processes are controlled through digital or analog input and output.
The reference value comprises reference time and reference temperature, is set in advance in the PLC before the heat treatment of the product, and is set according to the standard qualified by the heat treatment of the product and is used for comparing with an actual value.
The actual values refer to the values of the product in actual heat treatment, and comprise actual treatment temperature and actual treatment time, and aiming at three stations of solid solution, gas quenching and aging, the actual treatment temperature is respectively defined as the solid solution treatment temperature and the aging treatment temperature, and the actual treatment time is respectively defined as the solid solution treatment time, the gas quenching treatment time and the aging treatment time.
1. As shown in fig. 2, the anomaly type is calculated for the PLC after the solutionizing station:
1.1 the solution treatment time is shorter than the reference time, secondary heat treatment is needed, and notes are made in the sequence card.
1.2, the time of the solution treatment is longer than the reference time by less than 5 minutes, and the product normally passes the process; the solution treatment time is longer than the reference time by more than 5 minutes, the hardness of the product is measured, and the order is checked after the quality engineer and the product development engineer confirm.
1.3, the solution treatment temperature is higher than the reference temperature by within 5 ℃, the hardness of the product is measured, the product with qualified hardness can normally pass the process, and the product is scrapped if the hardness is not qualified; the solution treatment temperature is higher than the reference temperature by more than 5 ℃, and the product is discarded.
1.4 the temperature of the solution treatment is lower than the reference temperature, when the solution treatment is found, the temperature is immediately reset to the correct temperature, the necessary temperature is kept after the temperature is reached, the heat treatment is continued according to the operating conditions, the hardness of the product is measured, if the hardness is qualified, the product can be normally in the process, if the hardness is not qualified, the product is subjected to secondary heat treatment, and information is remarked by a process card;
1.5 the temperature of the solution treatment is lower than the reference temperature, and after the product is discharged from the furnace, the secondary heat treatment is carried out, and information is remarked by a sequence card.
As shown in fig. 3, the anomaly type is calculated for the PLC after the gas quench station:
2.1 the time for transferring the solid solution station to the gas quenching station is long (the time for transferring the solid solution furnace to the air quenching furnace is less than or equal to 15 seconds). And carrying out secondary heat treatment on the product again. And (5) remarking information of the over-sequence card.
2.2, the gas quenching treatment time is longer than the reference time (the time for transferring the gas quenching furnace to the aging furnace is longer), the aging treatment can be continued within 2 hours, and the product is completely checked whether cracks and deformation exist or not, and information is commented by an order card; for a time exceeding 2 hours, a secondary heat treatment is performed.
2.3 the gas quenching treatment time is shorter than the reference time, and the secondary heat treatment is carried out. And (5) product sequence card remarking information.
As shown in fig. 4, the anomaly type is calculated for the PLC after the aging workstation:
3.1 the aging treatment time is shorter than the reference time, and the secondary heat treatment is carried out. And (5) product sequence card remarking information.
3.2 the aging treatment time is longer than the reference time, and the secondary heat treatment is carried out. And (5) product sequence card remarking information.
3.3 the aging treatment temperature is higher than the reference temperature, and the product is subjected to secondary heat treatment, and information is remarked by the sequence card.
3.4 the aging treatment temperature is lower than the standard, when the aging treatment is found, the temperature is immediately reset to the correct temperature, the necessary temperature is kept after the temperature is reached, the heat treatment is continued according to the operating conditions, the hardness of the product is measured, if the hardness is qualified, the product can be normally in order, if the hardness is not qualified, the product is subjected to secondary heat treatment, and the information is remarked by a product order card.
3.5 the aging treatment temperature is lower than the reference, secondary heat treatment is carried out only after the product is discharged, and the product is annotated with information of the order card.
The hardness measurement of the product means that the hardness of the four corners and the center of the product is measured, and a certain number of products are selected from the same batch of products, for example, the hardness of the product is measured by selecting 5 or more products from the same batch of heat-treated products.
The secondary heat treatment refers to a process of treating the current station once again. For example, 2.3 gas quenching time is shorter than the benchmark, and the secondary heat treatment is carried out, which means that the primary gas quenching station is carried out again.
In addition, the solution treatment and the time treatment of the same product cannot exceed 2 times, and if the solution treatment and the time treatment exceed 2 times, the heat-treated product needs to be scrapped.
The abnormal type calculated by the PLC may be output in three stations of solid solution, gas quenching and aging, namely, a plurality of abnormal types may be output in the same product heat treatment, the treatment measure or result finally output by the abnormal type calculated by the PLC has uniqueness, and the abnormal type calculated by the PLC has priority: scrap > secondary heat treatment > inspection order > normal order.
The reference value for comparing the PLC calculation abnormality type with the actual value may be limited by product requirements, and is not limited to the specific value such as 5 minutes or 5 degrees.
Various other changes and modifications to the above-described embodiments and concepts will become apparent to those skilled in the art from the above description, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (10)
1. A method for processing heat treatment abnormality is characterized in that:
step 1: measuring the actual treatment temperature and the actual treatment time of the heat-treated product on three stations of solid solution, gas quenching and aging respectively, wherein the actual treatment temperature comprises the solid solution treatment temperature and the aging treatment temperature, and the actual treatment time comprises the solid solution treatment time, the gas quenching treatment time and the aging treatment time,
step 2: and outputting corresponding measures according to the comparison results of the actual processing temperature and the preset reference temperature as well as the actual processing time and the preset reference time.
2. The heat treatment abnormality processing method according to claim 1, characterized in that: the solution treatment time is shorter than the reference time, or the solution treatment temperature is lower than the reference temperature, or the process time between the transfer from the solution treatment station to the gas quenching station is longer than the reference time, or the gas quenching treatment time is shorter than the reference time, or the aging treatment time is longer than the reference time, or the aging treatment temperature is higher than the reference temperature, or the aging treatment temperature is lower than the reference, and the measures are taken as follows: and carrying out secondary heat treatment.
3. The heat treatment abnormality processing method according to claim 1, characterized in that: if the solution treatment time-reference time is less than or equal to a certain specific time, the measures are taken as follows: the product is normally processed; if the solid solution time-reference time is more than a certain specific time, the measures are taken as follows: and (5) measuring the hardness of the product, and checking the product after confirmation.
4. The heat treatment abnormality processing method according to claim 1, characterized in that: if the solution treatment temperature-reference temperature is less than or equal to a certain specific temperature, the measures are taken as follows: measuring the hardness of the product, wherein if the hardness is qualified, the product is normally in the order, and if the hardness is not qualified, the product is scrapped; the solution treatment temperature-reference temperature is more than a certain specific temperature, and the treatment is carried out according to the product scrap.
5. The heat treatment abnormality processing method according to claim 1, characterized in that: the solution treatment temperature is lower than the reference temperature in the solution treatment process, and the measures are taken as follows: immediately resetting to correct temperature, keeping necessary temperature after reaching the temperature, continuously carrying out heat treatment according to operating conditions, measuring the hardness of the product, and if the hardness is qualified, carrying out normal sequence on the product, and if the hardness is not qualified, carrying out secondary heat treatment on the product.
6. The heat treatment abnormality processing method according to claim 1, characterized in that: if the gas quenching treatment time-reference time is less than or equal to a certain specific time, the measures are taken as follows: continuing to perform aging treatment, and fully inspecting whether cracks and deformation exist in the product; if the gas quenching treatment time-reference time is more than a certain specific time, carrying out secondary heat treatment.
7. The heat treatment abnormality processing method according to claim 1, characterized in that: the temperature in the aging treatment process is lower than the reference temperature, and measures are taken as follows: and immediately resetting to the correct temperature, keeping the necessary temperature after the temperature is reached, continuously carrying out heat treatment, measuring the hardness of the product, and if the hardness is qualified, carrying out normal sequence treatment on the product, and if the hardness is not qualified, carrying out secondary heat treatment on the product.
8. The heat treatment abnormality processing method according to any one of claims 1 to 7, characterized in that: if the solution treatment and the aging treatment of the same product exceed 2 times, the heat-treated product is discarded.
9. The heat treatment abnormality processing method according to any one of claims 1 to 7, characterized in that: the corresponding measures comprise scrapping, secondary heat treatment, checking and sequencing, normal sequencing, and the priority among the corresponding measures is as follows: scrapping, secondary heat treatment, inspection and order passing, and outputting a countermeasure with the highest priority.
10. The heat treatment abnormality processing method according to claim 1, characterized in that: the handling measures are remarked to the over-sequence card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110889749.6A CN113637839A (en) | 2021-08-04 | 2021-08-04 | Heat treatment exception handling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110889749.6A CN113637839A (en) | 2021-08-04 | 2021-08-04 | Heat treatment exception handling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113637839A true CN113637839A (en) | 2021-11-12 |
Family
ID=78419560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110889749.6A Pending CN113637839A (en) | 2021-08-04 | 2021-08-04 | Heat treatment exception handling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113637839A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002241846A (en) * | 2001-02-19 | 2002-08-28 | Kawasaki Steel Corp | Device for judging abnormality in production process of steel product |
| JP2006073602A (en) * | 2004-08-31 | 2006-03-16 | Omron Corp | Method and device for detecting abnormality in thermal process, temperature controller, and program |
| JP2006274286A (en) * | 2005-03-28 | 2006-10-12 | Sumitomo Metal Ind Ltd | Heat treatment method and method for controlling quality of article to be heat-treated |
| JP2008097910A (en) * | 2006-10-10 | 2008-04-24 | Omron Corp | Abnormality detecting device, abnormality detection method, thermoregulator, and heat treating device |
| CN102690931A (en) * | 2012-05-21 | 2012-09-26 | 温州瑞明工业股份有限公司 | Positioning fixed point type air quenching device and use method thereof |
| CN202626272U (en) * | 2012-05-21 | 2012-12-26 | 温州瑞明工业股份有限公司 | Solid-melt quenching aging heat processing mechanism of cylinder cover casting |
| CN104899789A (en) * | 2014-03-03 | 2015-09-09 | 无锡华润上华科技有限公司 | Product production abnormity processing method |
| EP3141855A1 (en) * | 2015-09-11 | 2017-03-15 | Ipsen International GmbH | System and method for facilitating the maintenance of an industrial furnace |
| WO2017078968A1 (en) * | 2015-11-05 | 2017-05-11 | Consolidated Engineering Company, Inc. | Methods for improving the thermal treatment of castings |
| CN106755821A (en) * | 2017-02-17 | 2017-05-31 | 东北大学 | Heat treatment production analogue means and experimental technique |
| CN106756669A (en) * | 2016-12-29 | 2017-05-31 | 安徽科蓝特铝业有限公司 | A kind of aluminum alloy heat handling process |
-
2021
- 2021-08-04 CN CN202110889749.6A patent/CN113637839A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002241846A (en) * | 2001-02-19 | 2002-08-28 | Kawasaki Steel Corp | Device for judging abnormality in production process of steel product |
| JP2006073602A (en) * | 2004-08-31 | 2006-03-16 | Omron Corp | Method and device for detecting abnormality in thermal process, temperature controller, and program |
| JP2006274286A (en) * | 2005-03-28 | 2006-10-12 | Sumitomo Metal Ind Ltd | Heat treatment method and method for controlling quality of article to be heat-treated |
| JP2008097910A (en) * | 2006-10-10 | 2008-04-24 | Omron Corp | Abnormality detecting device, abnormality detection method, thermoregulator, and heat treating device |
| CN102690931A (en) * | 2012-05-21 | 2012-09-26 | 温州瑞明工业股份有限公司 | Positioning fixed point type air quenching device and use method thereof |
| CN202626272U (en) * | 2012-05-21 | 2012-12-26 | 温州瑞明工业股份有限公司 | Solid-melt quenching aging heat processing mechanism of cylinder cover casting |
| CN104899789A (en) * | 2014-03-03 | 2015-09-09 | 无锡华润上华科技有限公司 | Product production abnormity processing method |
| EP3141855A1 (en) * | 2015-09-11 | 2017-03-15 | Ipsen International GmbH | System and method for facilitating the maintenance of an industrial furnace |
| WO2017078968A1 (en) * | 2015-11-05 | 2017-05-11 | Consolidated Engineering Company, Inc. | Methods for improving the thermal treatment of castings |
| CN106756669A (en) * | 2016-12-29 | 2017-05-31 | 安徽科蓝特铝业有限公司 | A kind of aluminum alloy heat handling process |
| CN106755821A (en) * | 2017-02-17 | 2017-05-31 | 东北大学 | Heat treatment production analogue means and experimental technique |
Non-Patent Citations (1)
| Title |
|---|
| 隋育栋: "铝合金及其成形技术", 冶金工业出版社, pages: 73 - 74 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yang et al. | A condition-based maintenance model for a three-state system subject to degradation and environmental shocks | |
| US8229584B2 (en) | Abnormality detection system and method of detecting abnormality | |
| KR100292028B1 (en) | Real time control method of semiconductor equipment | |
| Celano et al. | The economic performance of the Shewhart t chart | |
| US20170074589A1 (en) | System and Method for Facilitating the Maintenance of an Industrial Furnace | |
| CN106200624B (en) | Based on the Industrial Boiler method for diagnosing faults for intersecting segmentation PCA | |
| CN117725541B (en) | Intelligent monitoring and fault diagnosis system for running state of annealing furnace | |
| JP3099932B2 (en) | Intelligent test line system | |
| CN116679643B (en) | Industrial equipment control system based on block chain technology | |
| Zhang et al. | Fault diagnosis for blast furnace ironmaking process based on two-stage principal component analysis | |
| CN113218198A (en) | Dynamic monitoring system and method for material level of top bin of submerged arc furnace | |
| CN115440400A (en) | Monitoring method and system for reactor pressure vessel of nuclear power station | |
| CN113637839A (en) | Heat treatment exception handling method | |
| CN117128777B (en) | Safety early warning system in vacuum dewaxing sintering multi-atmosphere furnace | |
| Yang et al. | Inspection optimization model with imperfect maintenance based on a three-stage failure process | |
| US11790700B2 (en) | Relearning necessity determination method and relearning necessity determination device of diagnostic model in machine tool, and computer readable medium | |
| Kamo et al. | Method for predicting gas channeling in blast furnace | |
| CN117387371A (en) | Control method of sintering machine trolley | |
| US12085341B2 (en) | Apparatus and process for predicting metal heat treatment system failures | |
| US20230236553A1 (en) | Training method for semiconductor process prediction model, semiconductor process prediction device, and semiconductor process prediction method | |
| US20040039560A1 (en) | Method computer program product and computer system for maintenance | |
| EP3929516A1 (en) | Method for predicting operating results, method for learning learning model, device for predicting operating results, and device for learning learning model | |
| CN113901720A (en) | Railway power supply equipment state abnormity alarm realization method based on deep learning LSTM | |
| CN109712729B (en) | Nuclear power station alarm method, and saturation margin calculation method and system | |
| JPS63145588A (en) | Maintenance guidance apparatus for equipment |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211112 |
|
| RJ01 | Rejection of invention patent application after publication |