CN113528803A - Control method for push rod furnace - Google Patents
Control method for push rod furnace Download PDFInfo
- Publication number
- CN113528803A CN113528803A CN202110695176.3A CN202110695176A CN113528803A CN 113528803 A CN113528803 A CN 113528803A CN 202110695176 A CN202110695176 A CN 202110695176A CN 113528803 A CN113528803 A CN 113528803A
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- China
- Prior art keywords
- furnace
- heat
- treated
- products
- push rod
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 68
- 238000010791 quenching Methods 0.000 claims description 12
- 230000000171 quenching effect Effects 0.000 claims description 12
- 230000003993 interaction Effects 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 84
- 238000004321 preservation Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005256 carbonitriding Methods 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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
-
- 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
- C21D1/34—Methods of heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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)
- Tunnel Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
A control method for a push rod furnace belongs to the technical field of heat treatment and is used for solving the problems of low heat efficiency and energy consumption waste caused by inaccurate control of furnace inlet and outlet in the using process of the push rod furnace, and comprises the following steps: inputting or transmitting the information of the product to be heat-treated to a corresponding push rod furnace; judging whether all the products to be heat-treated can be heat-treated in the same furnace, and if the products can not be heat-treated in the same furnace, prompting the products which can not be heat-treated in the same furnace; pushing the product to be heat-treated on the push plate to a proper position of the push rod furnace from the furnace door, and closing the furnace door; and when the heat treatment of the product to be heat treated closest to the furnace outlet door is finished, the push rod furnace control system sends out a push plate command and simultaneously triggers the furnace outlet door to open. The accurate control of furnace feeding and discharging is realized, and the problems of energy consumption waste and low heat efficiency caused by multiple times of furnace feeding and discharging of the same furnace number are avoided.
Description
Technical Field
The invention relates to the technical field of heat treatment, in particular to a heat treatment control method and a heat treatment control system.
Background
The push rod furnace has strong adaptability to different heat treatment processes, so that the push rod furnace is convenient for forming a production line and is widely applied to heat treatment procedures such as quenching, normalizing, annealing, tempering, carburizing, nitriding, carbonitriding and the like. The main disadvantages of the pusher furnace are that the operator can not accurately control the charging tray to repeatedly enter the furnace for heating and discharge for cooling, which causes large energy loss in the heat treatment process, i.e. the heat efficiency of the heat treatment is low, and the charging tray is easy to damage.
Disclosure of Invention
In view of the problems of large energy consumption and low heat efficiency of heat treatment caused by inaccurate control of furnace feeding and furnace discharging in the use process of the push rod furnace, a control method for the push rod furnace is needed, automatic control of furnace feeding and furnace discharging is realized, and the problem of inaccuracy of manual control manufacturing of furnace feeding and furnace discharging is solved.
A control method for a pusher furnace comprises the following steps:
inputting or transmitting the information of the product to be heat-treated to a corresponding push rod furnace;
judging whether all the products to be heat-treated can be heat-treated in the same furnace, and if the products can not be heat-treated in the same furnace, prompting the products which can not be heat-treated in the same furnace;
selecting a proper push rod furnace from the products in the same furnace for heat treatment, generating the furnace numbers of all the products to be heat treated in the same furnace in a push rod furnace control system, and sequentially placing the products to be heat treated on corresponding push plates according to the furnace numbers;
pushing the product to be heat-treated on the push plate to a proper position of the push rod furnace from the furnace door, and closing the furnace door;
when the heat treatment of the product to be heat treated closest to the furnace outlet door is finished, the push rod furnace control system sends a push plate command and simultaneously triggers the furnace outlet door to open; if the number of the products to be heat-treated in the same furnace exceeds the number of the products to be heat-treated in the push rod furnace, when a push plate instruction is sent, an opening instruction of an inlet furnace door and an opening instruction of an outlet furnace door are triggered at the same time, and when the products to be heat-treated are discharged after heat treatment, the products to be heat-treated in the next furnace number enter the furnace;
and circulating in sequence until the heat treatment of all the products which can be heat-treated in the same furnace is completed.
More specifically, the control method for the push rod furnace comprises the following steps:
1) inputting or transmitting the information of the product to be heat-treated to a corresponding push rod furnace;
2) setting the product to be subjected to heat treatment to be subjected to same furnace heat treatment, judging by the push rod furnace control system, if the material and the heat treatment process of the product to be subjected to heat treatment can be subjected to same furnace heat treatment, judging that the product can be subjected to same furnace heat treatment, and otherwise, judging that the product cannot be subjected to same furnace heat treatment;
3) setting the furnace number of the product to be heat-treated corresponding to a plurality of push plates in the push rod furnace control system;
4) setting heat treatment process parameters of the product to be heat treated corresponding to each push plate into the push rod furnace control system, and placing the product to be heat treated in the corresponding push plate;
5) judging whether the heat treatment is finished or not by the push rod furnace control system according to the heat treatment process of the product to be heat treated on each push plate, and sending a push plate instruction if the heat treatment is finished; otherwise, sending a continuous heat treatment instruction, namely not pushing the plate;
6) after a push plate in the push rod furnace receives a push plate instruction from a push rod furnace control system, if products which can be thermally treated in the push rod furnace exist, a furnace door is opened firstly, the products to be thermally treated are placed on the vacant push plate, and then a furnace outlet door is opened to push out the products after the thermal treatment; if no product which can be thermally treated in the same furnace exists, directly opening a furnace outlet door to push out the product after the thermal treatment;
7) and circulating in sequence until the heat treatment of the products which can be heat treated in the same furnace is finished.
Further, the heat treatment process parameters comprise heat preservation time, heat preservation temperature, product identification number, standard temperature of the quenching bath and the like.
Furthermore, the heat treatment temperature of the area where each push plate is located can be independently controlled, so that the heat treatment temperature of the product to be heat treated on each push plate can be conveniently controlled, and the heat treatment capacity of the push rod furnace can be greatly improved.
Furthermore, when the position of the push plate in the push rod furnace moves or the push plate moves each time, the heat treatment temperature of the position corresponding to the corresponding push plate needs to be reset according to the position of each push plate.
Furthermore, the push rod furnace control system also detects the heat treatment temperature of the product to be heat treated in the corresponding area of each push plate according to the temperature acquisition part arranged in the furnace, and displays the heat treatment temperature in the corresponding area of each push plate on a human-computer interaction interface of the push rod furnace control system in a temperature curve mode, so that an operator can conveniently monitor the heat treatment temperature, and the heat treatment temperature is ensured to be always in a proper range.
The technical scheme of the invention has the beneficial effects that: the push rod furnace control system automatically controls the push plate to enter and exit the furnace through the heat treatment process, so that the accurate control of the entering and exiting of the furnace is realized, and the problems of energy consumption waste and low heat efficiency caused by the fact that the push plate enters and exits the furnace for multiple times with the same furnace number are solved. On the other hand, the automation degree of the heat treatment process is improved, and the labor cost is reduced.
Detailed Description
In order to more clearly illustrate the technical solutions of the present invention, the technical solutions of the present invention are described in detail with reference to the following embodiments, and it is obvious that the following descriptions are some exemplary embodiments of the present invention, and it is obvious for those skilled in the art that other solutions can be obtained according to these embodiments without creative efforts.
The technical scheme of the invention is described in detail by taking five products treated by heat in the same furnace as an example, wherein the product A needs the shortest heat treatment time and the product B needs the shortest heat treatment time, and the heat treatment time of the product C, the product D and the product E is the same and longer than that of the product B.
The push rod furnace with 6 push plates is adopted to carry out heat treatment on the five products, and the control method for the push rod furnace comprises the following steps:
1) recording the five products to be heat-treated into the push rod furnace as a heat treatment plan or sending the five products to the push rod furnace by a production management system; inputting or issuing information of the product to be heat-treated to the push rod furnace, wherein the information comprises the material and the heat treatment process of the product;
2) judging whether the five products can be subjected to the same furnace heat treatment again by the pusher furnace according to the heat treatment processes and materials of the products A, B, C, D and E, giving a warning if the five products can not be subjected to the same furnace heat treatment, and displaying which product can not be subjected to the same furnace;
3) the number of the furnace is set in sequence according to the advancing direction of the push plate, namely, the number of the furnace of the product to be heat-treated placed on the corresponding push plate, for the embodiment, five products are respectively placed on the five push plates, and then the number of the furnace of the product A is 601, the number of the furnace of the product B is 602, the number of the furnace of the product C is 603, the number of the furnace of the product D is 604, and the number of the furnace of the product E is 605;
4) respectively placing the product A, the product B, the product C, the product D and the product E on corresponding push plates, opening the furnace inlet door, pushing the five products to corresponding positions in the push rod furnace, and closing the furnace inlet door;
5) adjusting the heat preservation temperature, the heat preservation time, the standard temperature of the quenching bath and the like of the corresponding area in the push rod furnace control system according to the heat treatment process of each product;
6) when the heat treatment heat preservation time of the product A is reached, the push rod furnace control system sends a push plate instruction, and the push plate instruction triggers a furnace outlet door opening instruction, so that the product A is pushed out of the push rod furnace; similarly, when the heat treatment heat preservation time of the product B is reached, pushing the product B out of the push rod furnace, judging the standard temperature of the quenching bath, and if the temperature meets the standard temperature, transferring the product B to the quenching bath from the push plate; pushing the product C, the product D and the product E out of the pusher furnace when the heat treatment holding time of the product C, the product D and the product E is reached; thus finishing the heat treatment of the furnace.
As an optimization of this embodiment, in order to facilitate monitoring of the temperature of the heat treatment area corresponding to each push plate, a temperature detection member is disposed in the whole push rod furnace, the temperature detection member feeds back the actual temperature of the heat treatment area to the push rod furnace control system, and the push rod furnace control system displays the actual heat treatment temperature of each area in the form of a temperature curve on a human-computer interaction interface of the push rod furnace in the arrangement manner of the push plates, so that the human-computer interaction of the push rod furnace is improved.
Preferably, on each temperature curve display area, the remaining heat preservation time of the product to be heat-treated, the product identification number and the standard temperature of the quenching bath are also displayed.
Preferably, in order to ensure the quenching performance of the product to be quenched, when the standard temperature of the quenching bath is detected to exceed the set range, the execution of the push plate instruction is suspended, when the standard temperature of the quenching bath is recovered to the set range, the push plate instruction is started again, and the product with the heat preservation time is pushed out of the push rod furnace and placed in the quenching bath for quenching.
Preferably, if the push rod furnace adopting the 6-push plate structure is adopted for heat treatment of more than 6 products, the 1-6 circular operation of the push plates can be realized, specifically, when the heat preservation time of the product A is up, the sent push plate instruction triggers a furnace door outlet opening instruction and a furnace door inlet opening instruction, when the product A is discharged, products needing heat treatment subsequently enter the furnace from the furnace door inlet, and when the push plates entering the furnace door and the furnace door are in place, the furnace door inlet and the furnace door outlet are closed; and sequentially circulating until the products which need to be heat-treated and can be in the same furnace are completely heat-treated. Thereby realizing the timeliness and the accuracy of opening and closing the furnace door, improving the accuracy of the heat treatment and heat preservation time of the product in the heat treatment process and effectively improving the heat efficiency in the heat treatment process.
As a supplement to this embodiment, if a batch of products to be heat-treated cannot be heat-treated in the same furnace, a pusher furnace with a suitable size is selected for heat treatment, and the heat treatment process is as described above.
The above embodiment is only a description of a typical application of the technical solution of the present invention, and may be reasonably expanded without creative efforts.
Claims (5)
1. A control method for a pusher furnace is characterized by comprising the following steps:
inputting or transmitting the information of the product to be heat-treated to a corresponding push rod furnace;
judging whether all the products to be heat-treated can be heat-treated in the same furnace, and if the products can not be heat-treated in the same furnace, prompting the products which can not be heat-treated in the same furnace;
selecting a proper push rod furnace from the products in the same furnace for heat treatment, generating the furnace numbers of all the products to be heat treated in the same furnace in a push rod furnace control system, and sequentially placing the products to be heat treated on corresponding push plates according to the furnace numbers;
pushing the product to be heat-treated on the push plate to a proper position of the push rod furnace from the furnace door, and closing the furnace door;
when the heat treatment of the product to be heat treated closest to the furnace outlet door is finished, the push rod furnace control system sends a push plate command and simultaneously triggers the furnace outlet door to open; if the number of the products to be heat-treated in the same furnace exceeds the number of the products to be heat-treated in the push rod furnace, when a push plate instruction is sent, an opening instruction of an inlet furnace door and an opening instruction of an outlet furnace door are triggered at the same time, and when the products to be heat-treated are discharged after heat treatment, the products to be heat-treated in the next furnace number enter the furnace;
and circulating in sequence until the heat treatment of all the products which can be heat-treated in the same furnace is completed.
2. The control method for the pusher furnace according to claim 1, wherein the step of inputting or issuing information of the product to be heat-treated to the corresponding pusher furnace includes inputting a product identification number, a holding time, a holding temperature, and a quenching bath standard temperature of the product.
3. The control method for the pusher furnace according to claim 2, further comprising setting a holding temperature of a corresponding region of each of the pusher plates to be respectively adapted to different products to be heat-treated.
4. The control method for the pusher furnace according to claim 3, further comprising adjusting the holding temperature of the corresponding area of the corresponding pusher plate in time according to the set holding temperature for replacement of the products in and out of the furnace.
5. The control method for the pusher furnace according to claim 4, wherein an actual temperature curve of the heat treatment holding temperature of the corresponding region of each push plate is displayed on the human-computer interaction interface of the pusher furnace control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110695176.3A CN113528803A (en) | 2021-06-23 | 2021-06-23 | Control method for push rod furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110695176.3A CN113528803A (en) | 2021-06-23 | 2021-06-23 | Control method for push rod furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113528803A true CN113528803A (en) | 2021-10-22 |
Family
ID=78125589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110695176.3A Pending CN113528803A (en) | 2021-06-23 | 2021-06-23 | Control method for push rod furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113528803A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3145215A1 (en) * | 1980-11-14 | 1982-07-01 | Michael R. Ann Arbor Mich. Levine | THERMOSTAT DEVICE |
| CN201309948Y (en) * | 2008-12-16 | 2009-09-16 | 丁东胜 | Vacuum heat-treating automatic-control furnace |
| CN105986066A (en) * | 2015-01-31 | 2016-10-05 | 重庆展申机械厂 | Furnace configuration method for heat treatment processes |
| CN206875956U (en) * | 2017-06-05 | 2018-01-12 | 江苏新中洲特种合金材料有限公司 | Variable capacity bench vehicle type electrical resistance furnace |
-
2021
- 2021-06-23 CN CN202110695176.3A patent/CN113528803A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3145215A1 (en) * | 1980-11-14 | 1982-07-01 | Michael R. Ann Arbor Mich. Levine | THERMOSTAT DEVICE |
| CN201309948Y (en) * | 2008-12-16 | 2009-09-16 | 丁东胜 | Vacuum heat-treating automatic-control furnace |
| CN105986066A (en) * | 2015-01-31 | 2016-10-05 | 重庆展申机械厂 | Furnace configuration method for heat treatment processes |
| CN206875956U (en) * | 2017-06-05 | 2018-01-12 | 江苏新中洲特种合金材料有限公司 | Variable capacity bench vehicle type electrical resistance furnace |
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| PB01 | Publication | ||
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| 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: 20211022 |
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| RJ01 | Rejection of invention patent application after publication |