CN103343216B - Suspended heat treatment equipment for forge pieces and heat treatment method thereof - Google Patents
Suspended heat treatment equipment for forge pieces and heat treatment method thereof Download PDFInfo
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- CN103343216B CN103343216B CN201310259423.0A CN201310259423A CN103343216B CN 103343216 B CN103343216 B CN 103343216B CN 201310259423 A CN201310259423 A CN 201310259423A CN 103343216 B CN103343216 B CN 103343216B
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Abstract
The invention relates to suspended heat treatment equipment for a forge piece and a heat treatment method thereof, which solves the technical problem that when the conventional heat treatment equipment is used for carrying out heat treatment on forge pieces, the forge pieces can not be heated uniformly, the product quality is low, the production efficiency is low, and the production cost is high. The equipment is composed of a suspension production line, a heating furnace and a cooling room. The suspension production line comprises a conveyor belt formed by a suspension chain which is provided with a suspension trolley, and a tempering furnace, the heating furnace and/or the cooling room are/is used as a box type furnace. The equipment provided by the invention can be widely used in the heat treatment of the forge pieces.
Description
Technical field
The present invention relates to a kind of thermal treatment unit and heat treating method, is a kind of forging suspension type thermal treatment unit and heat treating method specifically.
Background technology
Forging process for fuel thermal treatment is carried out usually in chamber furnace, and workpiece is horizontal stacking, and this mode can cause workpiece to be heated inequality, and quality can not well be ensured, do not reach mechanical property and the processing performance of expection, and production efficiency is low, production cost is high.
Summary of the invention
The present invention is exactly to solve the problems of the technologies described above, and provides a kind of and can greatly improve forging quality, forging is heated evenly, production efficiency is high, cost is low a kind of forging suspension type thermal treatment unit and heat treating method.
Technical scheme of the present invention is, provides a kind of forging suspension type thermal treatment unit, comprises hanger production line, process furnace and cooling room, hanger production line comprises the travelling belt be made up of suspension chain, suspension chain is provided with suspension car, and hang car and be provided with windsheild, process furnace and/or cooling room are box-type furnace, box-type furnace is provided with casing, casing is provided with import and outlet, and import is provided with Qianmen, and outlet is provided with back door, Qianmen and back door are connected to cylinder mechanism, and casing top is provided with middle seam;
The transmission system being also provided with PLC control system and being connected with PLC control system, hanger production line is closed circulating production line, and suspension chain is built up in the top of process furnace and described cooling room, and transmission system is connected with suspension chain;
Also be provided with normalizing room, normalizing room is located between process furnace and described cooling room;
Also be provided with quenching bath, elevator and tempering stove, tempering stove, process furnace and cooling room are respectively equipped with import and outlet, after quenching bath is located at the outlet of process furnace, before the import of cooling room is located at by tempering stove;
Also be provided with single armed to hang;
Also be provided with equal greenhouse, before the import of process furnace is located in described equal greenhouse;
Also be provided with pond, casing top is also provided with the U-iron pipe of S-shaped distribution, and U-iron pipe is communicated with pond, and the diameter dimension of U-iron pipe is 33cm, and pond is 20m
2;
Hanger production line be provided with feeding area, material waiting section and and discharge zone;
Hanger production line is provided with induction pick-up, induction pick-up comprises the first induction stopper, second induction stopper, 3rd induction stopper, 4th induction stopper, 5th induction stopper, 6th sense answers stopper, 7th induction stopper, 8th induction stopper and the 9th induction stopper, before the import in equal greenhouse is located at by first induction stopper, before the import of process furnace is located at by second induction stopper, after the outlet of process furnace is located at by 3rd induction stopper, before the import of tempering stove is located at by 4th induction stopper, after the outlet of tempering stove is located at by 5th induction stopper, 6th sense is answered after stopper is located at the outlet of cooling room, 7th induction stopper is located between material waiting section and discharge zone, 8th induction stopper is located between feeding area and material waiting section, after the outlet of normalizing room is located at by 9th induction stopper.
The present invention also provides a kind of method of thermal treatment forging, comprises the following steps:
Step one, the workpiece after forging loads described suspension car, and forging enters equal greenhouse with described suspension car;
Step 2, workpiece by equal greenhouse out after enter process furnace with described suspension car and carry out heat treated;
Step 3, completes the forging after heating and enters described normalizing room and carry out air-cooled;
Step 4, complete air-cooled after forging enter cooling room and cool in the mode spraying water-cooled;
Step 5, the forging completing cooling unloads from described suspension car.
The present invention also provides the method for another kind of thermal treatment forging, comprises the following steps:
Step one, the workpiece after forging loads described suspension car, and forging enters equal greenhouse with described suspension car;
Step 2, workpiece by equal greenhouse out after enter process furnace with described suspension car and carry out heat treated;
Step 3, completes the forging after heating and enters and quench at described quenching bath;
Step 4, the forging completing quenching enters described tempering stove and carries out tempering;
Step 5, the forging completing tempering enters described cooling room and cools in the mode spraying water-cooled;
Step 6, the forging completing cooling unloads from described suspension car.
The invention has the beneficial effects as follows: 1, horizontal heat treatment mode is improved to suspension type heat treatment mode, workpiece is heated evenly, production efficiency improves; 2, the programming automation utilizing PLC control system to achieve mechanical switch action controls, and achieves intelligent production; 3, PLC control system can send instruction to the start and stop controlling each induction opening and closing of stopper, transmission system drives the running of suspension chain, the start and stop of elevator and single armed to hang, equal greenhouse, process furnace, tempering stove, cooling room and the import of normalizing room, the opening and closing of outlet can also be controlled respectively, the closedown mode of import is slowly closed along with while slowly the entering of the workpiece hanging car carrying, so just shorten the time under oven door opening state, greatly reduce leaking of hot gas in stove, in further guarantee stove, workpiece is heated evenly, and improves production efficiency; 4, responding to stopper can allow suspension car stop in the position at induction stopper place under the control of PLC control system, and whole production line need not stop; 5, the equal greenhouse of case structure, process furnace, tempering stove, cooling room or normalizing room make workpiece be heated evenly, product various aspects of performance index improves, and improves production efficiency, reduces production cost, the injury caused human body when reducing forging thermal treatment, achieves the recycle of water resources; 6, realize the top of water cycle to equal greenhouse, process furnace, tempering stove, cooling room or normalizing room by U-iron pipe and carry out radiating and cooling, effectively prevent in top the distortion of stitching because high temperature causes.
Further aspect of the present invention and aspect, by the description of the embodiment below with reference to accompanying drawing, clearly recorded.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of box-type furnace.
Nomenclature in figure:
1.PLC Controlling System; 2. transmission system; 3. hanger production line; 4. feeding area; 5. hang car; 61. first induction stoppers; 62. second induction stoppers; 63. the 3rd induction stoppers; 64. the 4th induction stoppers; 65. the 5th induction stoppers; 66. 6th senses answer stopper; 67. the 7th induction stoppers; 68. the 8th induction stoppers; 69. the 9th induction stoppers; 7. equal greenhouse; 8. process furnace; 91. first turnouts; 92. second turnouts; 10. elevator; 11. quenching baths; 12. tempering stoves; 13. cooling rooms; 14. discharge zones; 15. single armeds hang; 16. material waiting sections; 17. normalizing rooms; 18. ponds; 19.U shape iron pipe; 20. windsheilds; Stitch in 21.; 22. Qianmens.
Embodiment
Referring to accompanying drawing, with specific embodiment, the present invention is described in further detail.
As depicted in figs. 1 and 2, this forging suspension type thermal treatment unit comprises: PLC control system 1, transmission system 2, hanger production line 3, suspension car 5, all greenhouse 7, process furnace 8, elevator 10, quenching bath 11, tempering stove 12, cooling room 13, single armed hang 15, respond to stopper, turnout and normalizing room 17.Hanger production line 3 is the circulating production line closed, and it comprises the travelling belt be made up of suspension chain, and hang car 5 and be arranged in suspension chain, transmission system 2 connects suspension chain.PLC control system 1 is connected with transmission system 2.Hang car 5 and practical situation can be provided with one or more.
Hanger production line 3 is provided with feeding area 4, material waiting section 16 and discharge zone 14.
The suspension chain of hanger production line 3 is built up in the top of equal greenhouse 7, process furnace 8, quenching bath 11, tempering stove 12, cooling room 13 and normalizing room 17.Equal greenhouse 7, process furnace 8, tempering stove 12, cooling room 13 and normalizing room 17 all adopt box-type furnace, are respectively arranged with import and outlet.This box-type furnace can ensure that workpiece has uniform heating and cooling place in the process of producing.Holding furnace lining and heating unit is provided with in process furnace 8.
Along hanger production line 3, elevator 10 and quenching bath 11 are installed between process furnace 8 and tempering stove 12.
Turnout is arranged on hanger production line 3, and it comprises the first turnout 91 and the second turnout 92.
The suspension chain of hanger production line 3 by the first turnout 91 through normalizing room 17, then can pass cooling room 13 by the second turnout 92.
Single armed hangs 15 and is arranged on discharge zone 14 side, for taking off the complete workpiece of thermal treatment.
Induction stopper is arranged on hanger production line 3, and it comprises, and stopper 62 responded to by the first induction stopper 61, second, stopper 64 responded to by the 3rd induction stopper 63, the 4th, the 5th induction stopper 65,6th sense answer stopper 66, the 7th induction stopper 67, the 8th induction stopper 68 and the 9th induction stopper 69.Before first induction stopper 61 is arranged on the import in equal greenhouse 7, before second induction stopper 62 is arranged on the import of process furnace 8, after 3rd induction stopper 63 is arranged on the outlet of process furnace 8, before 4th induction stopper 64 is arranged on the import of tempering stove 12, after 5th induction stopper 65 is arranged on the outlet of tempering stove 12, 6th sense is answered after stopper 66 is arranged on the outlet of cooling room 13, 7th induction stopper 67 is arranged between material waiting section 16 and discharge zone 14, 8th induction stopper 68 is arranged between feeding area 4 and material waiting section 16, after 9th induction stopper 69 is arranged on the outlet of normalizing room 17.
As shown in Figure 2, the structure of box-type furnace is described for process furnace 8, and process furnace 8 is provided with casing, and casing is provided with import and outlet, and import is provided with Qianmen 22, and outlet is provided with back door (unmarked in figure), and casing crown center position is provided with middle seam 21.The Qianmen 22 of casing, back door are opened or closed by cylinder mechanism.Hang car 5 by middle seam 21 through casing, therefrom to stitch in 21 leak to prevent the hot gas in casing, hang on car 5 and be provided with the windsheild 20 mated with middle seam 21, windsheild 21 can effectively stop the hot gas in casing therefrom to stitch in 21 to shed.Equal greenhouse 7, tempering stove 12, cooling room 13 or normalizing room 17 all adopt above-mentioned case structure.
For process furnace 8, its casing head temperature too high direct normal work and use life-span affecting each parts of process furnace 8, and its production efficiency can be affected.Casing head temperature is too high easily causes middle seam 21 to be out of shape, thus causes the workpiece hung on car 5 cannot smooth and easyly enter in process furnace 8, and impact normally works.In order to solve this problem, be provided with U-iron pipe 19 at casing top, U-iron pipe 19 is arranged with S shape.Two mouths of pipe of U-iron pipe 19 extend in pond 18, put into water in pond 18, and the water in pond 18 realizes circulation by U-iron pipe 19 under the control of water pump.Further in order to reduce the temperature of water in pond 18, another pond and pond 18 can be set again and carry out water cycle.The diameter dimension of U-iron pipe 19 is recommended as 33cm, and pond 18 is 20m
2, another pond be connected with pond 18 is 120m
2.
Below the working process of this device is described:
The whole working process of this device has been controlled by PLC control system 1, and the programming automation achieving mechanical switch action controls, and achieves intelligent production.PLC control system send out 1 can send instruction to control each induction opening and closing of stopper, transmission system 2 drives the running of suspension chain, the start and stop of elevator 10 and single armed hang 15 start and stop, equal greenhouse 7, process furnace 8, tempering stove 12, cooling room 13 and the import of normalizing room 17, the opening and closing of outlet can also be controlled respectively.
By human assistance, workpiece is hung vertically in suspension car 5 in feeding area 4, rear operation PLC control system 1 starts this device, transmission system 2 drives suspension chain action, hang car 5 is transported in equal greenhouse 7 under the drive of suspension chain, hang car 5 to export from equal greenhouse 7 after equal greenhouse 7 stays for some time, hang car 5 out to enter afterwards from equal greenhouse 7 in the process furnace 8 next process, the temperature in process furnace 8 is 880 DEG C, hangs car 5 and exports from process furnace 8 after process furnace 8 stops 1 hour.The throat temperature of process furnace 8 is only about 40 DEG C.
After the suspension car 5 that workpiece is housed completes heating from process furnace 8, such as to modulate according to different processing requirements or non-modulation, different operation can be entered.The first situation, needs to carry out modulation treatment to workpiece, then suspension car 5 enters the quenching bath 11 in quenching process.The second situation, does not need to carry out modulation treatment to workpiece, then hang car 5 and entered in normalizing room 17 by the first turnout 91.
For the first situation, suspension car 5 declines to being placed in quenching bath 11 and soaks 5 minutes by elevator 10.Soak after suspension car 5 rises by rear elevator 10, hung car 5 and enter in tempering stove 12 place 2 hours under temperature is 560 DEG C of conditions.Place after 2 hours, hang car 5 and enter cooling room 13.
For the second situation, hang car 5 and carry out air-cooled in normalizing room 17, the air-cooled rear overhang trailer 5 that completes enters cooling room 13 by the second turnout 92.
The workpiece entered on the suspension car 5 of cooling room 13 is lowered the temperature gradually, the type of cooling is spray water-cooling pattern, and the temperature fall time of workpiece is 12 minutes, after cooling, hang car 5 and out enter into discharge zone 14 from cooling room 13, the workpiece hung in 15 suspension cars 5 by single armed unloads.Empty suspension car 5 is transported to the placement that material waiting section 16 prepares next batch workpiece.
The parameters such as the temperature in above-mentioned working process, time can set according to different workpieces.
Hanging car 5 can arrange multiple on the hanger production line 3 of whole device, and induction stopper can allow and hang the position stopping of car 5 at induction stopper place under the control of PLC control system 1, and whole production line need not stop.
Time near the import that the suspension car 5 that workpiece is housed is sent to equal greenhouse 7, process furnace 8, tempering stove 12, cooling room 13 or normalizing room 17, corresponding induction stopper senses the existence of suspension car 5 and induced signal is sent to PLC control system 1, after PLC control system 1 receives signal, send the cylinder mechanism action on the casing of the equal greenhouse 7 of instruction control, process furnace 8, tempering stove 12, cooling room 13 or normalizing room 17 thus open the Qianmen of casing, the closedown at Qianmen is slowly closed along with while slowly the entering of the workpiece hanging car carrying.The closedown mode at the Qianmen of existing fire door is just closed when workpiece enters in stove completely, the closedown mode at the Qianmen of casing of the present invention and existingly have very large difference, which shorten the time under oven door opening state, greatly reduce leaking of hot gas in stove, in further guarantee stove, workpiece is heated evenly, and improves production efficiency.
This forging suspension type thermal treatment unit is utilized to the method one that forging is heat-treated to be:
Step one, forging loads suspension car 5, and forging enters equal greenhouse 7 with suspension car 5 and preheats;
Step 2, completes the forging after preheating and enters process furnace 8 and carry out heat treated;
Step 3, completes the forging after heating and enters normalizing room 17 and carry out air-cooled;
Step 4, complete air-cooled after forging enter cooling room 13 and cool in the mode spraying water-cooled;
Step 5, the forging completing cooling unloads from suspension car 5.
This forging suspension type thermal treatment unit is utilized to the method two that forging is heat-treated to be:
Step one, forging loads suspension car 5, and forging enters equal greenhouse 7 with suspension car 5 and preheats;
Step 2, completes the forging after preheating and enters process furnace 8 and carry out heat treated;
Step 3, completes the forging after heating and enters and quench at quenching bath 11;
Step 4, the forging completing quenching enters tempering stove 12 and carries out tempering;
Step 5, the forging completing tempering enters cooling room 13 and cools in the mode spraying water-cooled;
Step 6, the forging completing cooling unloads from suspension car 5.
The present invention is particularly useful for the thermal treatment of heavy froging.
Claims (3)
1. a forging suspension type thermal treatment unit, comprise hanger production line, process furnace and cooling room, described hanger production line comprises the travelling belt be made up of suspension chain, described suspension chain is provided with suspension car, it is characterized in that, described suspension car is provided with windsheild, described process furnace and/or cooling room are box-type furnace, described box-type furnace is provided with casing, described casing is provided with import and outlet, and described import is provided with Qianmen, and described outlet is provided with back door, described Qianmen and described back door are connected to cylinder mechanism, and the top of described casing is provided with middle seam;
The transmission system being also provided with PLC control system and being connected with described PLC control system, described hanger production line is closed circulating production line, described suspension chain is built up in the top of described process furnace and described cooling room, and described transmission system is connected with described suspension chain;
Also be provided with normalizing room, described normalizing room is located between described process furnace and described cooling room;
Also be provided with quenching bath, elevator and tempering stove, described tempering stove, process furnace and described cooling room are respectively equipped with import and outlet, after described quenching bath is located at the outlet of described process furnace, before the import of described cooling room is located at by described tempering stove;
Also be provided with single armed to hang;
Also be provided with equal greenhouse, before the import of described process furnace is located in described equal greenhouse;
Also be provided with pond, described casing top is also provided with the U-iron pipe of S-shaped distribution, and described U-iron pipe is communicated with described pond, and the diameter dimension of described U-iron pipe is 33cm, and described pond is 20m
2;
Described hanger production line be provided with feeding area, material waiting section and and discharge zone;
Described hanger production line is provided with induction pick-up, described induction pick-up comprises the first induction stopper, second induction stopper, 3rd induction stopper, 4th induction stopper, 5th induction stopper, 6th sense answers stopper, 7th induction stopper, 8th induction stopper and the 9th induction stopper, before the import in described equal greenhouse is located at by described first induction stopper, before the import of described process furnace is located at by described second induction stopper, after the outlet of described process furnace is located at by described 3rd induction stopper, before the import of described tempering stove is located at by described 4th induction stopper, after the outlet of described tempering stove is located at by described 5th induction stopper, described 6th sense is answered after stopper is located at the outlet of described cooling room, described 7th induction stopper is located between material waiting section and discharge zone, described 8th induction stopper is located between feeding area and material waiting section, after the outlet of described normalizing room is located at by described 9th induction stopper.
2. apply a method for forging suspension type thermal treatment unit thermal treatment forging as claimed in claim 1, it is characterized in that, comprise the following steps:
Step one, the workpiece after forging loads described suspension car, and forging enters equal greenhouse with described suspension car;
Step 2, workpiece by equal greenhouse out after enter process furnace with described suspension car and carry out heat treated;
Step 3, completes the forging after heating and enters described normalizing room and carry out air-cooled;
Step 4, complete air-cooled after forging enter cooling room and cool in the mode spraying water-cooled;
Step 5, the forging completing cooling unloads from described suspension car.
3. apply a method for forging suspension type thermal treatment unit thermal treatment forging as claimed in claim 1, it is characterized in that, comprise the following steps:
Step one, the workpiece after forging loads described suspension car, enters equal greenhouse with described suspension car;
Step 2, workpiece by equal greenhouse out after enter process furnace with described suspension car and carry out heat treated;
Step 3, completes the forging after heating and enters and quench at described quenching bath;
Step 4, the forging completing quenching enters described tempering stove and carries out tempering;
Step 5, the forging completing tempering enters described cooling room and cools in the mode spraying water-cooled;
Step 6, the forging completing cooling unloads from described suspension car.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310259423.0A CN103343216B (en) | 2013-06-26 | 2013-06-26 | Suspended heat treatment equipment for forge pieces and heat treatment method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310259423.0A CN103343216B (en) | 2013-06-26 | 2013-06-26 | Suspended heat treatment equipment for forge pieces and heat treatment method thereof |
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| Publication Number | Publication Date |
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| CN103343216A CN103343216A (en) | 2013-10-09 |
| CN103343216B true CN103343216B (en) | 2015-04-29 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105238915A (en) * | 2015-09-17 | 2016-01-13 | 苏州新协力特种工业模板有限公司 | Controllable cooling device for iron and steel parts |
| CN113148542B (en) * | 2020-01-22 | 2024-08-13 | 广东兴发铝业有限公司 | Vertical aluminum profile processing system with effectively connected suspension conveying line |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1341758A (en) * | 2001-08-27 | 2002-03-27 | 江苏省机电研究所 | Piling suspension chain workpiece heat treatment production line |
| CN102399953A (en) * | 2011-12-26 | 2012-04-04 | 天津市鼎元工业炉新技术开发有限公司 | Suspended isothermal normalizing production line |
-
2013
- 2013-06-26 CN CN201310259423.0A patent/CN103343216B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1341758A (en) * | 2001-08-27 | 2002-03-27 | 江苏省机电研究所 | Piling suspension chain workpiece heat treatment production line |
| CN102399953A (en) * | 2011-12-26 | 2012-04-04 | 天津市鼎元工业炉新技术开发有限公司 | Suspended isothermal normalizing production line |
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Owner name: RUSHAN MARINE MACHINERY CO., LTD. Free format text: FORMER OWNER: RUSHAN HUANGHAI AUTO FITTINGS CO., LTD. Effective date: 20150716 |
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Effective date of registration: 20150716 Address after: 264500 No. 6, Taiwan Road, Rushan Economic Development Zone, Weihai, Shandong Patentee after: Rushan Haiyang Machinery Co., Ltd. Address before: 264500, Shandong, Rushan Lingang Industrial Park, Taiwan northbound Century Avenue, West Road Patentee before: Rushan Huanhai Auto Parts Co., Ltd. |