CN111893253B - Heat treatment equipment for production and processing of large castings - Google Patents
Heat treatment equipment for production and processing of large castings Download PDFInfo
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- CN111893253B CN111893253B CN202010796371.0A CN202010796371A CN111893253B CN 111893253 B CN111893253 B CN 111893253B CN 202010796371 A CN202010796371 A CN 202010796371A CN 111893253 B CN111893253 B CN 111893253B
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- 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
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- 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
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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Abstract
The invention relates to the technical field of casting heat treatment equipment, and discloses heat treatment equipment for producing and processing large castings, which comprises a heating equipment body and a placing cover plate, wherein grooves are formed in four corners of the lower surface of the heating equipment body, the inner walls of the grooves are rotatably connected with a screw rod through a first rolling bearing, the rod wall of the screw rod is in threaded connection with threaded cylinders, the outer walls of the threaded cylinders are sleeved with bottom plates, and the outer wall of the heating equipment body is fixedly connected with a plurality of supporting legs. This heat treatment facility is used in large-scale foundry goods production and processing possesses and can improve the air flow velocity in the heat treatment facility, makes large-scale foundry goods be heated evenly, can effectively improve large-scale foundry goods production and processing heat treatment facility's for work efficiency, improves the convenience that heat treatment facility used simultaneously, and has improved heat treatment facility's heat utilization ratio, avoids causing thermal waste, has improved advantages such as heat treatment facility energy-concerving and environment-protective properties.
Description
Technical Field
The invention relates to the technical field of casting heat treatment equipment, in particular to heat treatment equipment for producing and processing large castings.
Background
The heat treatment is a metal hot processing technology for obtaining expected structure and performance by heating, heat preservation and cooling the material in a solid state, and the casting needs to be subjected to heat treatment in the later production stage to improve the metal characteristics of the casting so as to improve the quality of the casting.
At present, large castings have the inconvenient condition of foundry goods taking and placing in the hot working of heat treatment equipment, and the taking and placing process is comparatively loaded down with trivial details, wastes time and energy, influences large castings production and processing heat treatment equipment's work efficiency, influences heat treatment equipment's use convenience simultaneously, and in addition, heat treatment equipment gets the in-process heat loss serious at the foundry goods and causes thermal waste, makes thermal utilization ratio lower, influences heat treatment equipment's energy-concerving and environment-protective properties.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides heat treatment equipment for producing and processing large castings, which has the advantages of improving the air flow speed in the heat treatment equipment, enabling the large castings to be heated uniformly, effectively improving the working efficiency of the heat treatment equipment for producing and processing the large castings, improving the convenience of using the heat treatment equipment, improving the heat utilization rate of the heat treatment equipment, avoiding waste of heat, improving the energy-saving and environment-friendly performance of the heat treatment equipment and the like, and solves the problems that the casting is inconvenient to take and place in the hot processing of the large castings in the heat treatment equipment, the taking and placing process is complicated, the heat loss of the heat treatment equipment in the casting taking and placing process is serious, the heat waste is caused, and the heat utilization rate is lower.
(II) technical scheme
In order to improve the air flow speed in the heat treatment equipment, enable the large castings to be heated uniformly, effectively improve the working efficiency of the heat treatment equipment for producing and processing the large castings, improve the use convenience of the heat treatment equipment, improve the heat utilization rate of the heat treatment equipment, avoid heat waste and improve the energy-saving and environment-friendly performance of the heat treatment equipment, the invention provides the following technical scheme: a heat treatment device for production and processing of large castings comprises a heating device body and a placing cover plate, wherein four corners of the lower surface of the heating device body are provided with grooves, the inner wall of each groove is rotatably connected with a screw rod through a first rolling bearing, the rod wall of each screw rod is in threaded connection with a threaded cylinder, the outer wall of each threaded cylinder is sleeved with a bottom plate, the outer wall of the heating device body is fixedly connected with a plurality of supporting legs, the outer wall of the bottom end of each screw rod is fixedly sleeved with a second rolling bearing, the outer wall of each second rolling bearing is fixedly sleeved with a fixing plate, the side wall of each fixing plate is fixedly connected with the outer wall of each supporting leg, the outer wall of each fixing plate is fixedly connected with a driving mechanism, the lower surface of the placing cover plate is fixedly connected with the upper surface of the bottom plate, the inner wall of the placing cover plate is filled with heat insulation cotton, and the upper surface of the heating device body is movably connected with a cover plate, the lower fixed surface of apron is connected with a plurality of L shape poles, and is a plurality of the bottom lateral wall of L shape pole and the lateral wall fixed connection of bottom plate, the last fixed surface of apron is connected with complementary unit, and one of them the pole wall of L shape pole is fixed to be linked with pushing equipment, the top outer wall fixed connection of heating equipment body places the platform.
Preferably, actuating mechanism includes the driving motor who is connected with fixed plate lower surface fixed, driving motor's output passes the upper surface of fixed plate, circular through-hole has been seted up to the upper surface of fixed plate, driving motor's output fixedly connected with drive sprocket, it is a plurality of the pole wall of screw rod all is fixed the driven sprocket that has cup jointed, and is a plurality of the chain has been cup jointed jointly to driven sprocket's outer wall and drive sprocket's outer wall.
Preferably, pushing equipment includes with L shape pole outer wall fixed connection's solid fixed ring, gu fixed ring's inner wall fixedly connected with electric putter, electric putter's output fixedly connected with push pedal.
Preferably, complementary unit includes aspiration pump and dust removal case with apron upper surface fixed connection, the fixed intercommunication of output of aspiration pump has the pipe, the bottom of pipe and the last fixed surface intercommunication of apron, the fixed intercommunication of input of aspiration pump has the connecting pipe, the top of connecting pipe and the fixed intercommunication of the top outer wall of dust removal case, the fixed intercommunication of the bottom outer wall of dust removal case has the intake pipe, the bottom of intake pipe and the last fixed surface intercommunication of apron, the inner wall fixedly connected with of dust removal case crosses filter plate and filter screen, the upper surface swing joint of filter screen has the active carbon otter board.
Preferably, the lateral wall of dust removal case sets up threaded hole, and the pore wall threaded connection of threaded hole has the closure stopper, the outer wall activity of closure stopper has cup jointed the sealing washer.
Preferably, a plurality of reinforcing columns are fixedly connected to the inner wall of the placing cover plate, and the lower surfaces of the reinforcing columns are fixedly connected with the upper surface of the bottom plate.
Preferably, the lower surface of the placing table is fixedly connected with two support columns which are symmetrically distributed.
(III) advantageous effects
Compared with the prior art, the invention provides heat treatment equipment for producing and processing large castings, which has the following beneficial effects:
the heat treatment equipment for producing and processing the large castings is provided with the driving motor, the screw rod, the bottom plate and the placing cover plate, when the large castings need to be subjected to heat treatment, the large castings are firstly hoisted on the placing table, then the driving motor is started, the driving motor enables the screw rod to rotate through the driving chain wheel, the chain and the driven chain wheel, the screw rod enables the threaded cylinder to move upwards, the threaded cylinder enables the bottom plate to move upwards, the placing cover plate enables the placing cover plate to ascend, the upper surface of the placing cover plate is enabled to be flush with the upper surface of the heating equipment body, meanwhile, the cover plate also ascends, then the large castings on the placing table are pushed onto the placing cover plate through the pushing equipment, then the screw rod is enabled to rotate reversely when the driving motor rotates reversely, the screw rod enables the threaded cylinder to descend, further the large castings enter the heating equipment body, then the heating equipment body is started, the air suction pump is started at the same time, and the heating equipment body is used for carrying out heat treatment on the large castings, meanwhile, the air inlet pipe absorbs hot air in the heating equipment body, the hot air enters the dust removal box, then the filter screen plate, the filter screen and the active carbon screen plate filter fine oxides in the hot air, finally, clean hot air enters the heating equipment body through the connecting pipe, the air suction pump and the guide pipe, the air flow in the heating equipment body is accelerated, large castings are heated uniformly, the heat treatment speed of the large castings is improved, then, when the castings are taken, the air suction pump is turned off firstly, then the driving motor is turned on, the driving motor enables the screw rod to rotate through the driving mechanism, the screw rod enables the threaded cylinder to move upwards, the threaded cylinder enables the bottom plate, the placing cover plate and the cover plate to ascend, when the upper surface of the placing cover plate is flush with the heating equipment body, the electric push rod pushes the large castings onto the placing table through the push plate, and the placing cover plate and the bottom plate can prevent most of heat in the heating equipment body from losing, the mechanism can improve the air flow speed in the heat treatment equipment, enables large castings to be heated uniformly, can effectively improve the working efficiency of the heat treatment equipment for producing and processing the large castings, improves the use convenience of the heat treatment equipment, improves the heat utilization rate of the heat treatment equipment, avoids causing heat waste, and improves the energy conservation and environmental protection performance of the heat treatment equipment.
Drawings
FIG. 1 is a schematic structural diagram of a heat treatment device for producing and processing large castings according to the present invention;
FIG. 2 is a schematic structural diagram of a part A of a heat treatment device for producing and processing a large casting according to the invention;
FIG. 3 is a schematic structural diagram of a part B of the heat treatment equipment for producing and processing large castings, which is provided by the invention;
FIG. 4 is a schematic structural diagram of a part C of the heat treatment equipment for producing and processing large castings according to the present invention.
In the figure: 1 heating equipment body, 2 placing cover plates, 3 screw rods, 4 threaded cylinders, 5 bottom plates, 6 supporting legs, 7 driving mechanisms, 71 driving motors, 72 driving sprockets, 73 driven sprockets, 74 chains, 8 auxiliary mechanisms, 81 air extraction pumps, 82 dust removal boxes, 83 guide pipes, 84 connecting pipes, 85 air inlet pipes, 86 filter screen plates, 87 filter screens, 88 activated carbon screen plates, 9 pushing mechanisms, 91 fixing rings, 92 electric push rods, 93 push plates, 10 fixing plates, 11 supporting columns, 12 heat insulation cotton, 13 cover plates, 14L-shaped rods, 15 placing tables, 16 sealing plugs, 17 sealing rings and 18 reinforcing columns.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and 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 invention.
Referring to fig. 1-4, a heat treatment device for producing and processing large castings comprises a heating device body 1 and a placing cover plate 2, wherein four corners of the lower surface of the heating device body 1 are provided with grooves, the inner walls of the grooves are rotatably connected with screw rods 3 through first rolling bearings, rod walls of the screw rods 3 are in threaded connection with threaded cylinders 4, the outer walls of the threaded cylinders 4 are sleeved with a bottom plate 5, the outer wall of the heating device body 1 is fixedly connected with a plurality of supporting legs 6, the outer walls of the bottom ends of the screw rods 3 are fixedly sleeved with second rolling bearings, the outer walls of the second rolling bearings are fixedly sleeved with a fixing plate 10, the side wall of the fixing plate 10 is fixedly connected with the outer walls of the supporting legs 6, the outer wall of the fixing plate 10 is fixedly connected with a driving mechanism 7, the lower surface of the placing cover plate 2 is fixedly connected with the upper surface of the bottom plate 5, and the inner wall of the placing cover plate 2 is filled with heat insulation cotton 12, the upper surface swing joint of heating device body 1 has apron 13, and the lower fixed surface of apron 13 is connected with a plurality of L shape poles 14, and the bottom lateral wall of a plurality of L shape poles 14 and the lateral wall fixed connection of bottom plate 5, the last fixed surface of apron 13 are connected with complementary unit 8, and the pole wall fixed connection of one of them L shape pole 14 has pushing equipment 9, and the top outer wall fixedly connected with of heating device body 1 places platform 15.
The pushing mechanism 9 comprises a fixing ring 91 fixedly connected with the outer wall of the L-shaped rod 14, the inner wall of the fixing ring 91 is fixedly connected with an electric push rod 92, and the output end of the electric push rod 92 is fixedly connected with a push plate 93.
The auxiliary mechanism 8 comprises an air suction pump 81 and a dust removal box 82 which are fixedly connected with the upper surface of the cover plate 13, the output end of the air suction pump 81 is fixedly communicated with a guide pipe 83, the bottom end of the guide pipe 83 is fixedly communicated with the upper surface of the cover plate 13, the input end of the air suction pump 81 is fixedly communicated with a connecting pipe 84, the top end of the connecting pipe 84 is fixedly communicated with the outer wall of the top end of the dust removal box 82, the outer wall of the bottom end of the dust removal box 82 is fixedly communicated with an air inlet pipe 85, the bottom end of the air inlet pipe 85 is fixedly communicated with the upper surface of the cover plate 13, the inner wall of the dust removal box 82 is fixedly connected with a filter screen plate 86 and a filter screen 87, the upper surface of the filter screen 87 is movably connected with an active carbon screen plate 88, the air suction pump 81 is started, the heating equipment body 1 heats and carries out heat treatment on large castings, meanwhile, the air inlet pipe 85 absorbs hot air in the heating equipment body 1, the hot air enters the dust removal box 82, then the filter screen plate 86, the filter screen plate 87 and the active carbon screen plate 88 filter fine oxides in the hot air, finally, clean hot air enters the heating equipment body 1 through the connecting pipe 84, the air extracting pump 81 and the guide pipe 83, so that the air flow in the heating equipment body 1 is accelerated, the large casting is heated uniformly, and the heat treatment speed of the large casting is improved.
The side wall of the dust removal box 82 is provided with a threaded hole, the hole wall of the threaded hole is in threaded connection with a sealing plug 16, the outer wall of the sealing plug 16 is movably sleeved with a sealing ring 17, and the sealing ring 17 can guarantee the connection tightness of the sealing plug 16.
A plurality of reinforcing columns 18 are fixedly connected to the inner wall of the placing cover plate 2, the lower surfaces of the reinforcing columns 18 are fixedly connected with the upper surface of the bottom plate 5, and the reinforcing columns 18 can improve the structural stability of the placing cover plate 2.
The lower surface fixedly connected with of placing platform 15 has two symmetric distribution's support column 11, and support column 11 can ensure the structural stability of placing platform 15.
To sum up, when the large casting needs to be subjected to heat treatment, the large casting is firstly hung on the placing table 15, then the driving motor 71 is started, the driving motor 71 enables the screw rod 3 to rotate through the driving chain wheel 72, the chain 74 and the driven chain wheel 73, the screw rod 3 enables the threaded cylinder 4 to move upwards, the threaded cylinder 4 enables the bottom plate 5 to move upwards, the bottom plate 5 enables the placing cover plate 2 to ascend, the upper surface of the placing cover plate 2 is enabled to be flush with the upper surface of the heating equipment body 1, the cover plate 13 also ascends, then the large casting on the placing table 15 is pushed onto the placing cover plate 2 through the pushing equipment, then the screw rod 3 is reversely rotated under the driving motor 71, the threaded cylinder 4 is descended through the screw rod 3, the large casting enters the heating equipment body 1, then the heating equipment body 1 is started, the air suction pump 81 is started, and the heating equipment body 1 is heated to carry out heat treatment on the large casting, meanwhile, the air inlet pipe 85 absorbs hot air in the heating equipment body 1, the hot air enters the dust removal box 82, then the filter screen plate 86, the filter screen 87 and the activated carbon screen plate 88 filter fine oxides in the hot air, finally the clean hot air enters the heating equipment body 1 through the connecting pipe 84, the air suction pump 81 and the guide pipe 83 to accelerate the air flow in the heating equipment body 1, so that large castings are uniformly heated, the heat treatment speed of the large castings is improved, then the air suction pump 81 is turned off at first when the castings are taken, then the driving motor 71 is turned on, the driving motor 71 enables the screw rod 3 to rotate through the driving mechanism 7, the screw rod 3 enables the threaded cylinder 4 to move upwards, the threaded cylinder 4 enables the bottom plate 5, the placing cover plate 2 and the cover plate 13 to ascend, the electric push rod 92 is started when the upper surface of the placing cover plate 2 is flush with the heating equipment body 1, and the electric push rod 92 pushes the large castings onto the placing table 15 through the push plate 93, and place cover plate 2 and bottom plate 5 and can prevent that most heat in the firing equipment body 1 from running off, make its inside temperature keep in higher position, do not need reheating when firing equipment body 1 reuses, reduce the energy resource consumption of firing equipment body 1, this mechanism can improve the air flow velocity in the heat treatment equipment, make large-scale foundry goods be heated evenly, can effectively improve large-scale foundry goods production and processing heat treatment equipment's for work efficiency, improve the convenience that heat treatment equipment used simultaneously, and heat treatment equipment's heat utilization ratio has been improved, avoid causing thermal waste, the energy-concerving and environment-protective properties of heat treatment equipment has been improved.
It is to be noted that 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 phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a heat treatment equipment is used in production and processing of large-scale foundry goods, includes heating equipment body (1) and places cover plate (2), its characterized in that: the four corners of the lower surface of the heating equipment body (1) are provided with grooves, the inner walls of the grooves are rotatably connected with a screw rod (3) through a first rolling bearing, the rod wall of the screw rod (3) is in threaded connection with a threaded cylinder (4), the outer walls of a plurality of threaded cylinders (4) are sleeved with a bottom plate (5), the outer wall of the heating equipment body (1) is fixedly connected with a plurality of supporting legs (6), the outer wall of the bottom end of the screw rod (3) is fixedly sleeved with a second rolling bearing, the outer walls of the second rolling bearings are fixedly sleeved with a fixing plate (10), the side wall of the fixing plate (10) is fixedly connected with the outer walls of the supporting legs (6), the outer wall of the fixing plate (10) is fixedly connected with a driving mechanism (7), the lower surface of the placing cover plate (2) is fixedly connected with the upper surface of the bottom plate (5), and the inner wall of the placing cover plate (2) is filled with heat insulation cotton (12), the upper surface of the heating equipment body (1) is movably connected with a cover plate (13), the lower surface of the cover plate (13) is fixedly connected with a plurality of L-shaped rods (14), the side walls of the bottom ends of the plurality of L-shaped rods (14) are fixedly connected with the side wall of the bottom plate (5), the upper surface of the cover plate (13) is fixedly connected with an auxiliary mechanism (8), the rod wall of one L-shaped rod (14) is fixedly connected with a material pushing mechanism (9), and the outer wall of the top end of the heating equipment body (1) is fixedly connected with a placing table (15);
the driving mechanism (7) comprises a driving motor (71) fixedly connected with the lower surface of the fixing plate (10), the output end of the driving motor (71) penetrates through the upper surface of the fixing plate (10), a circular through hole is formed in the upper surface of the fixing plate (10), the output end of the driving motor (71) is fixedly connected with a driving chain wheel (72), the rod walls of the plurality of screws (3) are fixedly sleeved with driven chain wheels (73), and the outer walls of the plurality of driven chain wheels (73) and the outer wall of the driving chain wheel (72) are sleeved with a chain (74) together;
the pushing mechanism (9) comprises a fixing ring (91) fixedly connected with the outer wall of the L-shaped rod (14), the inner wall of the fixing ring (91) is fixedly connected with an electric push rod (92), and the output end of the electric push rod (92) is fixedly connected with a push plate (93);
complementary unit (8) include aspiration pump (81) and dust removal case (82) with apron (13) upper surface fixed connection, the fixed intercommunication of output of aspiration pump (81) has pipe (83), the bottom of pipe (83) and the last fixed surface of apron (13) communicate, the fixed intercommunication of input of aspiration pump (81) has connecting pipe (84), the top of connecting pipe (84) and the fixed intercommunication of the top outer wall of dust removal case (82), the fixed intercommunication of the bottom outer wall of dust removal case (82) has intake pipe (85), the bottom of intake pipe (85) and the last fixed surface of apron (13) communicate, the inner wall fixedly connected with of dust removal case (82) filters otter board (86) and filter screen (87), the upper surface swing joint of filter screen (87) has active carbon otter board (88).
2. The heat treatment equipment for producing and processing the large castings according to claim 1, wherein: threaded holes are formed in the side wall of the dust removal box (82), a sealing plug (16) is connected to the hole wall of each threaded hole in a threaded mode, and a sealing ring (17) is sleeved on the outer wall of the sealing plug (16) in a movable mode.
3. The heat treatment equipment for producing and processing the large castings according to claim 1, wherein: the inner wall of the placing cover plate (2) is fixedly connected with a plurality of reinforcing columns (18), and the lower surfaces of the reinforcing columns (18) are fixedly connected with the upper surface of the bottom plate (5).
4. The heat treatment equipment for producing and processing the large castings according to claim 1, wherein: the lower surface of the placing table (15) is fixedly connected with two supporting columns (11) which are symmetrically distributed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010796371.0A CN111893253B (en) | 2020-08-10 | 2020-08-10 | Heat treatment equipment for production and processing of large castings |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010796371.0A CN111893253B (en) | 2020-08-10 | 2020-08-10 | Heat treatment equipment for production and processing of large castings |
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| CN111893253A CN111893253A (en) | 2020-11-06 |
| CN111893253B true CN111893253B (en) | 2022-04-05 |
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| CN209840700U (en) * | 2019-03-22 | 2019-12-24 | 清苑县宏达金属有限公司 | Horizontal continuous casting power frequency electric furnace |
| CN210426077U (en) * | 2019-08-05 | 2020-04-28 | 宜昌市新丰机电设备制造有限公司 | Electric heating absorption furnace |
| CN111482576A (en) * | 2020-04-22 | 2020-08-04 | 安徽省繁昌县皖南阀门铸造有限公司 | Stable low pressure casting liquid lifting equipment |
| CN211199299U (en) * | 2019-12-28 | 2020-08-07 | 溧阳市永恒热处理有限公司 | Walking wheel quenching device |
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2020
- 2020-08-10 CN CN202010796371.0A patent/CN111893253B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002039681A (en) * | 2000-07-21 | 2002-02-06 | Tokai Konetsu Kogyo Co Ltd | Heat shielding mechanism for elevating screw for hearth elevating bath type electric furnace |
| KR100682090B1 (en) * | 2005-08-22 | 2007-02-12 | 주식회사 포스코 | Combustion air filter cleaning apparatus for annealing furnace |
| CN209068973U (en) * | 2018-08-01 | 2019-07-05 | 邯郸市宝特铸造有限公司 | A kind of casting electricity consumption ring protection device |
| CN208632595U (en) * | 2018-08-06 | 2019-03-22 | 天津亦全良金属加工有限公司 | A kind of aluminium calendering plate transmission auxiliary device |
| CN209840700U (en) * | 2019-03-22 | 2019-12-24 | 清苑县宏达金属有限公司 | Horizontal continuous casting power frequency electric furnace |
| CN210426077U (en) * | 2019-08-05 | 2020-04-28 | 宜昌市新丰机电设备制造有限公司 | Electric heating absorption furnace |
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Denomination of invention: A heat treatment equipment for large-scale casting production and processing Effective date of registration: 20230925 Granted publication date: 20220405 Pledgee: Hanshan County sub branch of Postal Savings Bank of China Ltd. Pledgor: MA'ANSHAN XINGLONG FOUNDRY Co.,Ltd. Registration number: Y2023980058698 |
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