CN104515385A - Front and back volume-variable trolley resistance furnace - Google Patents
Front and back volume-variable trolley resistance furnace Download PDFInfo
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- CN104515385A CN104515385A CN201310447594.6A CN201310447594A CN104515385A CN 104515385 A CN104515385 A CN 104515385A CN 201310447594 A CN201310447594 A CN 201310447594A CN 104515385 A CN104515385 A CN 104515385A
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- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 238000009413 insulation Methods 0.000 claims abstract description 23
- 239000011449 brick Substances 0.000 claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 230000003028 elevating effect Effects 0.000 claims description 11
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000003063 flame retardant Substances 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005485 electric heating Methods 0.000 abstract description 3
- 229910000746 Structural steel Inorganic materials 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- -1 roll Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Furnace Details (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a front and back volume-variable trolley resistance furnace. The front and back volume-variable trolley resistance furnace mainly comprises a furnace body with openings in the front end and the bottom, a furnace lining, a furnace door, a furnace door lifting mechanism, an electric heating element, a trolley, a trolley walking mechanism, an electric appliance control mechanism, a sealing mechanism and a trolley control system at the front end of the trolley. Through structural steel welding, the furnace body is manufactured into a front furnace shell framework and a rear furnace shell framework which are different in volume; a heat insulation board is arranged in the middle of the trolley to separate the interior of the furnace body into two parts, and therefore the requirement of the different sizes for a combustion chamber is met. Two parts or devices can be heated at the same time, the production and heating cost is reduced, labor force is reduced by one half, economic benefits are improved, and the resources are fully utilized. The sealing mechanism comprises a pneumatic pushing rod, a connecting rod mechanism and a sealing pressing strip. The front and back volume-variable trolley resistance furnace is high in automation degree and good in sealing and heating effect. A furnace bottom plate, a heavy aluminum plate, a wire containing brick and a refractory brick which are sequentially and tightly arranged on the trolley from top to bottom enable heating and heat preservation effects to be perfect, and the service life of the trolley is prolonged.
Description
Technical field
The present invention relates to a kind of Equipment for Heating Processing, particularly relate to a kind of variable volume, function is many, and automation seals, and heating effect is good, the front and back variable displacement type trolley resistance furnace that thermal loss is little.
Background technology
Bench vehicle type electrical resistance furnace is the energy-saving periodical furnace of national standard, super energy-saving structure, adopts fibre structure, economizes on electricity up to 60%.Be mainly used in the use of the quenching such as Gao Ge, high manganese steel casting, spheroidal graphite cast-iron, roll, steel ball, 45 steel, stainless steel, annealing, timeliness and various machine components heat treatment, the research of prior art to bench vehicle type electrical resistance furnace is more.
At present, bench vehicle type electrical resistance furnace mainly adopts a burner hearth heated components, just there are some problems in this mode of heating for the part of heating different size, some relatively large equipment, part needs larger burner hearth to heat, this single burner hearth then can not meet the heating requirements of different workpieces, need the desk-top resistance furnace manufacturing multiple different size just can achieve the goal, and due to the size of desk-top resistance furnace itself larger, such manufacture adds production cost to a great extent, and this mode of heating can increase the amount of labour, extend man-hour, the more workman of recruitment is needed to finish the work, increase cost, in addition, bench vehicle type electrical resistance furnace in the past adopts in the contact position of chassis and body of heater and manually seals its gap, so then can add heavily to the difficulty of the work, and the effect of sealing is poor, thus can heat loss be caused, impact is brought on heating effect.
Summary of the invention
For the problems referred to above that prior art exists, the invention provides a kind of variable volume, automatic-sealed, and good sealing effect, cost is low, the front and back variable displacement type trolley resistance furnace that difficulty is little.
To achieve these goals: the technical solution adopted in the present invention is:
Front and back variable displacement type trolley resistance furnace, comprise front end and bottom and the body of heater of opening, furnace lining, fire door and fire door elevating mechanism, heating, chassis and chassis walking mechanism and electrical equipment control mechanism are all set, also comprise sealing mechanism and be positioned at the Control System of Trolley of described chassis front end; Described body of heater makes two sections, front and back cuboid frame structure by shaped steel welding, described body of heater is divided into two not isometric furnace shell skeletons, arranges a thermal insulation board in the middle part of described chassis; Described sealing mechanism comprises air-leg, linkage and seal trim strip, bottom described body of heater both sides body of wall and rear furnace wall body, all arrange sealing mechanism; Described chassis is arranged on chassis wheel track, is moved on wheel track by travelling wheel, described chassis vehicle frame sets gradually from the top down drop-bottom, heavy aluminium brick, puts a brick and refractory brick; Described Control System of Trolley comprises motor, reductor, mobile controller, and with Chain conveyer by power transmission to the power wheel shaft of chassis front end.
As preferably, described thermal insulation board is moved freely on described chassis by mobile controller.
As preferably, described body of heater is fixedly welded on support foot rest, on described body of heater two sides and furnace roof is all arranged heating eduction rod and thermocouple bore.
As preferably, described body of heater two side wall bodies, rear furnace wall body, furnace roof and described thermal insulation board are all fixed with furnace lining, described furnace lining is divided into heat-insulation layer and flame retardant coating from inside to outside, and heat-insulation layer, flame retardant coating and furnace roof lining all installs corresponding insulation, refractory material.
As preferably, described fire door is arranged on described body of heater front opening, and realizes its lifting by fire door elevating mechanism, and described fire door elevating mechanism is a portal frame support post, be fixedly installed on described body of heater wherein side, electric block is set in described portal frame support post bottom.
As preferably, described heating is wavy resistive band, and be fixed on described body of heater both sides body of wall, fire door, rear furnace wall by porcelain piece location hook, the resistive element on described chassis, for organize resistance wire, is put in a brick described in described resistance wire is fixedly installed on more.
As preferably, electrical apparatus control system carries out interlock function composition primarily of heating power supply, temperature control, thermograph, action control and safety interlocking protection.
As preferably, described chassis, fire door elevating mechanism, sealing mechanism, Control System of Trolley are equipped with limit controller.
The invention has the beneficial effects as follows: body of heater makes two sections, front and back cuboid frame structure by shaped steel welding, body of heater is divided into two not isometric furnace shell skeletons, one thermal insulation board is set in the middle part of chassis, this thermal insulation board is moved freely on described chassis by mobile controller, furnace interior is separated into two, meet the requirement of different size to burner hearth, can also heat two parts or equipment simultaneously, not only achieve the diversity of function, and reduce production and heating cost, the labour of half can be reduced, increase economic efficiency; In addition, sealing mechanism comprises air-leg, linkage and seal trim strip, bottom body of heater both sides body of wall and rear furnace wall body, all sealing mechanism is set, sealing mechanism is using air-leg as power, drivening rod mechanism, the seal trim strip made by fiber upwards lifts, and makes press strip be close to gap between chassis and body of heater, the sealing that can remain valid; And length direction press strip subsection setup, and adjustable compresses degree, good sealing effect, the effect of heating improves, and two burner hearths heated components or equipment simultaneously, makes resource be fully utilized, also have, drop-bottom, heavy aluminium brick that chassis is closely arranged from the top down successively, put a brick and refractory brick, heating effect and heat insulation effect are reached best, extend the service life of chassis.
The advantage of automation of the present invention is:
1) fire door falls not in place, and electric heating does not work.
2) trolley body drives into not in place, and electric heating does not work.
3) fire door is not opened, and trolley body does not move.
4) fire door arranges limit switch, to prevent from causing fire door falling accident during maloperation.
Simple structure of the present invention, cost is low, good sealing effect, save labour, automaticity is high, and heating effect is good, resource without waste, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is phantom of the present invention.
Fig. 3 is internal structure schematic diagram of the present invention.
Wherein: 1-body of heater, 2-furnace lining, 3-heating, 4-gantry support post, 5-air-leg, 6-linkage, 7-seal trim strip, 8-support foot rest, 9-resistance wire, 10-puts a brick, 11-drop-bottom, 12-refractory brick, 13-heavy aluminium brick, 14-travelling wheel, 15-thermal insulation board, 16-fire door, 17-electric block.
Detailed description of the invention
Be below the specific embodiment of the invention, and by reference to the accompanying drawings technical scheme of the present invention conducted further description, but the present invention has more than and is limited to following examples.
Front and back variable displacement type trolley resistance furnace, comprise front end and bottom and the body of heater 1 of opening, furnace lining 2, fire door 16 and fire door 16 elevating mechanism, heating 3, chassis and chassis walking mechanism and electrical equipment control mechanism are all set, also comprise sealing mechanism and be positioned at the Control System of Trolley of described chassis front end; Described body of heater 1 makes two sections, front and back cuboid frame structure by shaped steel welding, described body of heater 1 is divided into two not isometric furnace shell skeletons, brazier shell steel plate is pasted on furnace shell skeleton surface, fire door adopts light-duty Anti-deformation steel structure doorframe, reduce the impact caused due to heat radiation fire door distortion, arrange a thermal insulation board 15 in the middle part of described chassis, described thermal insulation board 15 is moved freely on described chassis by mobile controller; Described sealing mechanism comprises air-leg 5, linkage 6 and seal trim strip 7, bottom described body of heater 1 both sides body of wall and rear furnace wall body, all sealing mechanism is set, this mechanism is using air-leg 5 as power, drivening rod mechanism 6, the seal trim strip 7 made by fiber upwards lifts, seal trim strip 7 is made to be close to gap between chassis and body of heater, the sealing that can remain valid; Length direction seal trim strip 7 subsection setup, and adjustable compresses degree, in order to ensure the accuracy of seal trim strip 7 sealing station, its sealing mechanism also arranges a limit controller, determines the optimum position of seal trim strip 7; Described chassis is arranged on chassis wheel track, and moved on wheel track by travelling wheel 14, travelling wheel steadily contacts with wheel track, described chassis vehicle frame sets gradually from the top down drop-bottom 11, heavy aluminium brick 13, puts a brick 10 and refractory brick 12; Described Control System of Trolley comprises motor, reductor, mobile controller, and with Chain conveyer by power transmission to the power wheel shaft of chassis front end, described Control System of Trolley is also arranged the limit controller controlling described thermal insulation board 15 movement.
In the present embodiment, described body of heater 1 is fixedly welded on support foot rest 8, this support foot rest 8 is welded by shaped steel and makes, and has the strength and stiffness kept needed for body of heater steady operation, on described body of heater 1 two sides and furnace roof is all arranged heating eduction rod and thermocouple bore.
In the present embodiment, described body of heater 1 two side wall bodies, rear furnace wall body, furnace roof and described thermal insulation board 15 are all fixed with furnace lining 2, described furnace lining 2 is divided into heat-insulation layer and flame retardant coating from inside to outside, flame retardant coating is fixed on furnace wall ensure that large face is smooth by being pressed down firmware with heat resisting steel after Whole fiber high alumina ceramic fiber block folding forming, heat-insulation layer is positioned at the centre of flame retardant coating and furnace shell steel plate, adopt alumina-silicate refractory fibre blanket layer Pu clog and compress, the gas heat avoiding fiber gap to cause makes casing temperature rise; Can effectively protect furnace shell steel plate inwall be not heated vapour corrode, furnace roof lining by furnace roof steel plate welds riveting component by fiber block size weld, overall roof liner and furnace roof steel plate will be made to strike up partnership.
In the present embodiment, described fire door 16 is arranged on described body of heater 1 front opening, and realize its lifting by fire door elevating mechanism, described fire door elevating mechanism is a portal frame support post 4, be fixedly installed on described body of heater 1 wherein side, arrange electric block 17 in described portal frame support post 4 bottom, the lifting of fire door realizes its lifting by electric block 17 type of belt drive, the terminal of fire door 16 rise and fall is provided with limit switch device, guarantees the accuracy of fire door 16 rise and fall.
In the present embodiment, described heating 3 is wavy resistive band, material is the 0Cr25Al5 of high-quality, be fixed on described body of heater 1 both sides body of wall, fire door 16, rear furnace wall by porcelain piece location hook, resistive element 3 on described chassis is many group resistance wires 9, and described resistive band power supply is accessed by described eduction rod; The connection of described eduction rod and described resistive band adopts gradual transition power supply connection method, can increase the service life, what described resistance wire 9 turned to that helical form is arranged in chassis end face puts in a brick 10, power supply eduction rod is movable binding post (plug-in type connection), and chassis driving power adopts elevator unwrapping wire cable to connect.
In the present embodiment, described electrical apparatus control system carries out interlock function composition primarily of heating power supply, temperature control, thermograph, action control and safety interlocking protection, the advantage of safety interlocking protection is: fire door 16 falls not in place, and heating 3 does not work; Chassis drives into not in place, and heating does not work; Fire door 16 is not opened, and chassis does not move; Fire door 16 arranges limit controller, to prevent from causing fire door falling accident during maloperation.
Claims (8)
1. variable displacement type trolley resistance furnace before and after, comprise front end and bottom and the body of heater (1) of opening, furnace lining (2), fire door (16) and fire door elevating mechanism, heating (3), chassis and chassis walking mechanism and electrical equipment control mechanism are all set, it is characterized in that: also comprise sealing mechanism and be positioned at the Control System of Trolley of described chassis front end; Described body of heater (1) makes two sections, front and back cuboid frame structure by shaped steel welding, described body of heater (1) is divided into two not isometric furnace shell skeletons, arranges a thermal insulation board (15) in the middle part of described chassis; Described sealing mechanism comprises air-leg (5), linkage (6) and seal trim strip (7), bottom described body of heater (1) both sides body of wall and rear furnace wall body, all arrange sealing mechanism; Described chassis is arranged on chassis wheel track, is moved on wheel track by travelling wheel (14), described chassis vehicle frame sets gradually from the top down drop-bottom (11), heavy aluminium brick (13), puts a brick (10) and refractory brick (12); Described Control System of Trolley comprises motor, reductor, mobile controller, and with Chain conveyer by power transmission to the power wheel shaft of chassis front end.
2. front and back according to claim 1 variable displacement type trolley resistance furnace, is characterized in that: described thermal insulation board (15) is moved freely on described chassis by mobile controller.
3. front and back according to claim 1 variable displacement type trolley resistance furnace, it is characterized in that: described body of heater (1) is fixedly welded on support foot rest (8), on described body of heater (1) two side and furnace roof is all arranged heating eduction rod and thermocouple bore.
4. front and back according to claim 1 variable displacement type trolley resistance furnace, it is characterized in that: on described body of heater (1) two side wall body, rear furnace wall body, furnace roof and described thermal insulation board (15), be all fixed with furnace lining (2), described furnace lining (2) is divided into heat-insulation layer and flame retardant coating from inside to outside, and heat-insulation layer, flame retardant coating and furnace roof lining all installs corresponding insulation, refractory material.
5. front and back according to claim 1 variable displacement type trolley resistance furnace, it is characterized in that: described fire door (16) is arranged on described body of heater (1) front opening, and realize its lifting by fire door elevating mechanism, described fire door elevating mechanism is a portal frame support post (4), be fixedly installed on described body of heater (1) wherein side, electric block (17) is set in described portal frame support post (4) bottom.
6. front and back according to claim 1 variable displacement type trolley resistance furnace, it is characterized in that: described heating (3) is wavy resistive band, be fixed on described body of heater (1) both sides body of wall, fire door (16), rear furnace wall by porcelain piece location hook, resistive element (3) on described chassis, for organize resistance wire (9), is put described in described resistance wire (9) is fixedly installed in a brick (10) more.
7. front and back according to claim 1 variable displacement type trolley resistance furnace, is characterized in that: described electrical apparatus control system carries out interlock function composition primarily of heating power supply, temperature control, thermograph, action control and safety interlocking protection.
8. front and back according to claim 1 variable displacement type trolley resistance furnace, is characterized in that: on described chassis, fire door elevating mechanism, sealing mechanism, Control System of Trolley, be equipped with limit controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310447594.6A CN104515385B (en) | 2013-09-27 | 2013-09-27 | Front and back volume-variable trolley resistance furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310447594.6A CN104515385B (en) | 2013-09-27 | 2013-09-27 | Front and back volume-variable trolley resistance furnace |
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| Publication Number | Publication Date |
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| CN104515385A true CN104515385A (en) | 2015-04-15 |
| CN104515385B CN104515385B (en) | 2017-01-11 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440817A (en) * | 2016-11-28 | 2017-02-22 | 无锡市莱达热工工程有限公司 | Lifting furnace door device of thermal furnace |
| CN108707736A (en) * | 2018-08-10 | 2018-10-26 | 河南天利热工装备股份有限公司 | A kind of sealing structure of transfiguration stove |
| CN109708466A (en) * | 2019-01-22 | 2019-05-03 | 武汉重工铸锻有限责任公司 | Variable capacity tunnel type connecting rod heating furnace and heating means |
| CN113432428A (en) * | 2021-06-04 | 2021-09-24 | 成都日进冶金锻造有限公司 | Box quenching resistance furnace |
| CN114082879A (en) * | 2021-10-29 | 2022-02-25 | 青海中钛青锻装备制造有限公司 | Split type electric heating furnace |
| CN114195409A (en) * | 2021-11-23 | 2022-03-18 | 北京卡卢金热风炉技术有限公司 | Trolley with heat storage layer |
| CN114688869A (en) * | 2021-12-24 | 2022-07-01 | 丹阳市恒泰电炉有限公司 | Large-scale high efficiency gas trolley formula resistance furnace |
| CN115127349A (en) * | 2022-05-20 | 2022-09-30 | 燕山大学 | Furnace volume adjusting method and device |
| CN115323150A (en) * | 2022-09-16 | 2022-11-11 | 襄阳金耐特机械股份有限公司 | Low-energy-consumption heat treatment furnace |
Families Citing this family (2)
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| CN109870030A (en) * | 2017-12-04 | 2019-06-11 | 江苏洪诚健康科技有限公司 | A kind of heat cure resistance furnace |
| CN109870034A (en) * | 2017-12-04 | 2019-06-11 | 江苏洪诚健康科技有限公司 | A kind of bench vehicle type electrical resistance furnace |
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| CN202869217U (en) * | 2012-10-31 | 2013-04-10 | 常州市新城光大热处理有限公司 | Bogie-hearth resistance furnace |
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| JP2009092301A (en) * | 2007-10-05 | 2009-04-30 | Ngk Insulators Ltd | Heat treatment furnace |
| CN201281541Y (en) * | 2008-09-18 | 2009-07-29 | 章体 | High temperature bench vehicle type electrical resistance furnace |
| KR20120000981A (en) * | 2010-06-29 | 2012-01-04 | 현대제철 주식회사 | Heating furnace having carrier |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440817A (en) * | 2016-11-28 | 2017-02-22 | 无锡市莱达热工工程有限公司 | Lifting furnace door device of thermal furnace |
| CN108707736A (en) * | 2018-08-10 | 2018-10-26 | 河南天利热工装备股份有限公司 | A kind of sealing structure of transfiguration stove |
| CN108707736B (en) * | 2018-08-10 | 2024-03-19 | 河南天利热工装备股份有限公司 | Sealing structure of variable-volume furnace |
| CN109708466A (en) * | 2019-01-22 | 2019-05-03 | 武汉重工铸锻有限责任公司 | Variable capacity tunnel type connecting rod heating furnace and heating means |
| CN113432428A (en) * | 2021-06-04 | 2021-09-24 | 成都日进冶金锻造有限公司 | Box quenching resistance furnace |
| CN114082879A (en) * | 2021-10-29 | 2022-02-25 | 青海中钛青锻装备制造有限公司 | Split type electric heating furnace |
| CN114195409A (en) * | 2021-11-23 | 2022-03-18 | 北京卡卢金热风炉技术有限公司 | Trolley with heat storage layer |
| CN114688869A (en) * | 2021-12-24 | 2022-07-01 | 丹阳市恒泰电炉有限公司 | Large-scale high efficiency gas trolley formula resistance furnace |
| CN115127349A (en) * | 2022-05-20 | 2022-09-30 | 燕山大学 | Furnace volume adjusting method and device |
| CN115323150A (en) * | 2022-09-16 | 2022-11-11 | 襄阳金耐特机械股份有限公司 | Low-energy-consumption heat treatment furnace |
| CN115323150B (en) * | 2022-09-16 | 2024-04-12 | 襄阳金耐特机械股份有限公司 | Low-energy-consumption heat treatment furnace |
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| CN104515385B (en) | 2017-01-11 |
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Effective date of registration: 20161129 Address after: Danyang City, Jiangsu Province eight weft 212300 Road Development Zone on the south side of Branch Park Applicant after: DANYANG ZHENGLIAN INTELLECTUAL PROPERTY OPERATIONS MANAGEMENT Co.,Ltd. Address before: 212363 Danyang City, Zhenjiang province Zhuang Industrial Park, No. 100, No. Applicant before: JIANGSU HENGLI FURNACE INDUSTRY Co.,Ltd. |
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Effective date of registration: 20181203 Address after: 538000 Guangxi Fangchenggang Economic and Technological Development Zone Patentee after: GUANGXI SHENGLONG METALLURGICAL CO.,LTD. Address before: 212300 Jiangsu science and Technology Park, eight weft Road, development zone, Danyang, China Patentee before: DANYANG ZHENGLIAN INTELLECTUAL PROPERTY OPERATIONS MANAGEMENT Co.,Ltd. |
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Denomination of invention: Front and rear variable volume trolley resistance furnace Effective date of registration: 20211203 Granted publication date: 20170111 Pledgee: Bank of Guilin Co.,Ltd. Fangchenggang branch Pledgor: GUANGXI SHENGLONG METALLURGICAL CO.,LTD. Registration number: Y2021450000056 |
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Date of cancellation: 20220714 Granted publication date: 20170111 Pledgee: Bank of Guilin Co.,Ltd. Fangchenggang branch Pledgor: GUANGXI SHENGLONG METALLURGICAL CO.,LTD. Registration number: Y2021450000056 |
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Denomination of invention: Front and rear variable volume trolley resistance furnace Effective date of registration: 20220719 Granted publication date: 20170111 Pledgee: Bank of Guilin Co.,Ltd. Fangchenggang branch Pledgor: GUANGXI SHENGLONG METALLURGICAL CO.,LTD. Registration number: Y2022450000096 |
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Date of cancellation: 20231222 Granted publication date: 20170111 Pledgee: Bank of Guilin Co.,Ltd. Fangchenggang branch Pledgor: GUANGXI SHENGLONG METALLURGICAL CO.,LTD. Registration number: Y2022450000096 |