CN106017074A - Separated sliding rail type rotary heating furnace structure for warm-hot forming production and production technology thereof - Google Patents
Separated sliding rail type rotary heating furnace structure for warm-hot forming production and production technology thereof Download PDFInfo
- Publication number
- CN106017074A CN106017074A CN201610298812.8A CN201610298812A CN106017074A CN 106017074 A CN106017074 A CN 106017074A CN 201610298812 A CN201610298812 A CN 201610298812A CN 106017074 A CN106017074 A CN 106017074A
- Authority
- CN
- China
- Prior art keywords
- heating furnace
- heating
- furnace
- heater
- slide rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/16—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/40—Arrangements of controlling or monitoring devices
Abstract
The invention discloses a separated sliding rail type rotary heating furnace structure for a warm-hot forming production and a production technology thereof. The separated sliding rail type rotary heating furnace structure for warm-hot forming production is characterized in that a body is composed of a plurality of independent heating furnace bodies and is overall arrayed in an annular mode; each independent heating furnace body can be provided with a plurality of layers and is provided with an independent furnace door and a relatively-independent hearth space, and therefore single control over furnace temperatures can be achieved; a pulley device is arranged at the bottom of each single heating furnace body; a novel sliding ring structure is arranged at the center of a rotating heating furnace; a control wire of the heating furnace and an anti-oxidation gas conveying pipeline are placed in a sliding ring; a motor is arranged in the sliding ring and can drive the furnace bodies to make circumferential movement around an annular sliding rail; air jet holes are formed in the positions, at the furnace doors, of nitrogen channels in the heating furnace bodies; and a gap curtain is formed at the furnace doors through gas jetted by the air jet holes. The separated sliding rail type rotary heating furnace structure is used in a warm-hot forming production line, so that it is guaranteed that a workpiece can be fully heated to a designated temperature, meanwhile the continuity of the production process is ensured, the requirement for takt is met, the heating efficiency is improved, thermal loss is reduced, and the cost is saved.
Description
Technical field
The present invention relates to high strength steel plate hot forming techniques and almag Warm Forming Technology, specifically a kind of
The split slide rail type rotary heating furnace structure produced for warm forming.
Background technology
Warm forming technology is a kind of advanced manufacturing technology for form high strength stamping parts, is widely used in
Automobile manufacture industry.In warm forming, for ensureing that plate fully heats and obtains stay-in-grade warm
Formed product, is also constantly being carried out the Improvement of its critical equipment warm forming heating furnace.For
Heat forming technology, needs workpiece temperature quickly heats up to 900 DEG C and carries out more than 3 minutes before stamping
Insulation, makes workpiece complete austenitizing；For warm working technique, first workpiece temperature need to be heated to 475 DEG C,
Then insulation 30 minutes.Therefore, the rate of heat addition and the insulation control in warm forming produces, to heating furnace
System has the highest requirement.
The heating furnace being now widely used in warm forming is roller hearth type heating furnace, and its body of heater is tunnel type, plate
It is transported through by the furnace roller in stove, heats by the way of electricity or gas in transport process.Therefore,
It has following deficiency: 1, taking up an area space greatly, this heating furnace needs enough length to ensure plate
Having enough heating and temperature retention time, its production line length is typically no less than 45 meters；2, energy loss is high,
No matter in the case of high volume production process or small lot batch manufacture are debugged, roller hearth furnace all must add by whole stove
Heat, could realize furnace temperature and arrive assigned temperature, will consume more electricity or gas in whole stove temperature-rise period；
3, maintenance cost is high, maintenance difficult, and the structure of roller hearth type heating furnace makes its dismounting and change difficulty, except
To also needing to outside the maintenance of heating element heater furnace roller and drive system are maintained.For roller hearth type heating furnace
Feature, the research and development of rotary hearth continous furnance in recent years grow in intensity, and use rotary hearth continous furnance can the most more
Mend roller hearth type heating furnace and take up an area the deficiency of the aspects such as space is big, maintenance maintenance expense is high.But rotary hearth continous furnance
Equally exist some shortcomings.
The patent of Application No. 201210398392.2 discloses one " rotary furnace bottom rotary heating furnace " and uses
In abrasion-proof steel ball heat treatment, this heating furnace uses annular furnace structure, has a less floor space, but only
It is provided with two fire doors of one-in-and-one-out, it is impossible to improve production effect further by increasing supporting charging and discharging equipment
Rate；The patent of Application No. 201120541177.4 discloses " a kind of rotary forge furnace " for right
Forging heats, and the feature of this patent is to propose partition heating, the heater being distributed by different densities
The compartmentalization realizing temperature controls, but this partition heating mode is not provided between each region
The mechanism of blocking temperature transmission, it is impossible to avoid the temperature conduction in different heating region, there is certain limitation；
The patent of Application No. 201210385919.8 discloses one, and " multi-ring rotary heating furnace heat treatment is raw
Produce line ", multiple rotary heating furnaces are set up in parallel by this heating furnace, can workpiece on same production line
Carry out the heat treatment of different temperatures.In addition, all there is certain deficiency in above-mentioned patent: such as heating furnace
In certain section of region break down, it will cause the heating furnace entirety cannot be properly functioning, need maintenance down completely.
Summary of the invention
The invention provides a kind of split slide rail type rotary heating furnace structure produced for warm forming, it is special
Levy and be:
Heating furnace main body is made up of multiple independent heating furnace bodies, and heating furnace entirety is arranged ringwise；Each solely
Vertical heating furnace can be some numbers of plies, and each layer is provided with respective fire door, and it is empty to have relatively independent burner hearth
Between, it is possible to realize the independent control of furnace temperature；Unit heating furnace bottom is provided with pulley gear, in rotary funace
The heart is provided with a kind of novel slip-ring structure, the internal control line placing heating furnace of slip ring and anti-oxidation air shooter
Road, is provided with motor in slip ring, body of heater annularly track can be driven to carry out circular motion；Nitrogen it is provided with in heating furnace
Gas passage, is provided with puff prot at burner hearth at fire door, in heating process, is connected with nitrogen in burner hearth all the time,
When door opened, the gas sprayed by puff prot forms gas curtain at fire door.
Preferably, described heating furnace main body is made up of eight single heating furnaces.
Preferably, described single heating furnace is monolayer chamber structure.
A kind of split slide rail type rotary funace production technology produced for warm forming, including following step
Rapid:
Noble gas is passed through in heating furnace burner hearth, forms protection atmosphere, treat that inert gas concentration arrives predetermined
Inflation is stopped during value；Then heating furnace is heated, regulate in-furnace temperature by control system so that it is reach to refer to
Definite value is also incubated；Furnace bottom pulley is connected with slide rail, carries out circular motion by driven by motor body of heater along slide rail；
Rotating and postpone to specific bit, body of heater stops the rotation, and puff prot starts outwards to spray gas, door opened, shape
Become gas curtain；After specifying position to complete feeding, feeding, closing fire door, puff prot stops jet；Motor belt motor
Dynamic body of heater rotates the angle set, and again carries out feeding, feeding；So circulation, it is achieved produce continuously.
Compared with prior art, the present invention provide heating furnace use rotating operation form, entirety ringwise,
Take up an area space can effectively reduce；Meanwhile, use the form of split, multiple single heating furnaces form entirety
Rotary funace, when certain independent body of heater breaks down, it is possible to overhaul easily and fast or replace fault stove
Body；Each single heating furnace is furnished with independent attemperating unit and is controlled fire box temperature, can effectively realize
The purpose of zone heating；It is provided with the pore communicated with vent line at the rear of burner hearth, is used for being passed through gas,
Control furnace gas composition；At fire door, puff prot it is provided with, when door opened at fire door at burner hearth
Form gas curtain.Door opened and the Guan Bi of heating furnace uses pneumatic type, and the unlatching of fire door is i.e. closed and overall
The technique beat that the moment rotated and stop all being preset by computer is controlled.
The present invention has occupation of land, and space is little, maintenance maintenance convenient, energy-efficient, formed product quality high, surely
The qualitative advantage such as by force, therefore the present invention can promote in fields such as warm formings.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is embodiment of the present invention split slide rail type rotary funace main TV structure schematic diagram；
Fig. 2 is embodiment of the present invention split slide rail type rotary funace A-A sectional view；
Fig. 3 is embodiment of the present invention split slide rail type rotary funace plan structure schematic diagram；
Fig. 4 is the structural representation of the independent heating furnace of the embodiment of the present invention (being preferred for warm working)；
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
The exemplary a kind of split produced for warm forming showing that the embodiment of the present invention provides in figure
Slide rail type rotary funace schematic diagram, this structure specifically includes that
Heating furnace main body 1 is made up of multiple single heating furnace bodies 2, and described heating furnace entirety is arranged ringwise；
Described single heating furnace can be some numbers of plies, and each layer is provided with respective fire door 3, and has relatively independent
Furnace cavity 4, it is possible to realize the independent control of furnace temperature；Pulley dress it is provided with bottom described single heating furnace
Put 5, motor the body of heater controlled annularly can carry out circular motion by slide rail 6；In described rotary funace
The heart is provided with slip ring structure 7, the internal control line being used for placing heating furnace of described slip ring and the conveying of anti-oxidation gas
Pipeline, and it is provided with motor in inside, described body of heater annularly slide rail can be driven to carry out circular motion；Described add
It is provided with channel of nitrogen in hot stove, at fire door, is provided with puff prot 8 at described burner hearth, in heating process,
All the time be connected with nitrogen in described burner hearth, when described door opened time, the gas sprayed by described puff prot is existed
Gas curtain is formed at fire door；
The center of rotary funace is provided with a kind of novel slip-ring structure 7, and slip ring is internal for placing heating furnace
Control line and anti-oxidation gas transmission pipeline, it is to avoid in rotary course, the control line of each stove is mutually wound around and does
Relate to；At slip ring structure, being provided with fan 10 and maintenance window 11, fan drum is provided with shutter, beneficially slip ring
Internal heat dissipating；It is provided with motor in slip ring, heating furnace can be rotated and carry out circular motion；
Wherein, rotary funace is made up of eight single bodies of heater 2, it is possible to ensure that workpiece is heated sufficiently to refer to
Fixed temperature, improves production efficiency；Individually body of heater is single layer structure and is provided with independent temperature control unit 9；
Rotary heating furnace bottom is provided with pulley gear 5, pulley gear can be fixed on ground slide rail 6
It is connected, annularly track motion under the drive of slip ring；
Individually the burner hearth of body of heater is provided with nitrogen jet device 8 at fire door, when door opened, passes through nitrogen
Gas spraying device from top to bottom sprays gas, forms gas curtain at stockhole, makes stove inside and outside formation positive and negative pressure,
Prevent gas exchange inside and outside stove, thus reduce the loss of fire box temperature；Meanwhile, set in the burner hearth of independent body of heater
There is channel of nitrogen, make burner hearth be in the course of the work in inert gas environment, reduce the oxidation of workpiece.
Wherein, the mode of heating of rotary funace is radiation heating.
The split slide rail type rotary funace production technology for warm forming production of the present invention may be used to down
Step:
In hot forming produces, preferred scheme is: heating furnace main body is made up of eight single heating furnaces,
Single heating furnace is monolayer chamber structure.First noble gas is passed through in heating furnace burner hearth 4, forms protection atmosphere
Enclose, when inert gas concentration arrives predetermined value, stop inflation；Then heating furnace 2 is heated, by controlling
System 9 regulates in-furnace temperature so that it is reaches designated value and is incubated；Furnace bottom pulley 5 is connected with slide rail 6, logical
Cross driven by motor body of heater and carry out circular motion along slide rail；Rotating and postpone to specific bit, body of heater stops the rotation, spray
QI KOU 8 starts outwards to spray gas, and fire door 3 is opened, and forms gas curtain；Complete feeding specifying position, send
After material, closing fire door, puff prot stops jet；Driven by motor body of heater rotates the angle set, and again carries out
Feeding, feeding；So circulation, it is achieved produce continuously.
In warm working produces, overall flow is similar to hot forming production process.In view of alloy plate material
Forming technology demand (productive temp is 20s, plate 30min heat time heating time), preferred scheme is: add
Hot furnace main body is made up of ten single heating furnaces, and single heating furnace is nine layers of chamber structure, as shown in Figure 4.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (7)
1. the split slide rail type rotary funace produced for warm forming, it is characterised in that:
Heating furnace main body is made up of multiple independent heating furnace bodies, and described heating furnace entirety is arranged ringwise；Institute
Stating independent heating furnace can be some numbers of plies, and each layer is provided with respective fire door, and has relatively independent stove
Thorax space, it is possible to the independence realizing furnace temperature controls；Described Unit heating furnace bottom is provided with pulley gear, described
Rotary funace center is provided with slip ring structure, motor the body of heater controlled annularly can carry out circumference fortune by slide rail
Dynamic；It is provided with channel of nitrogen in described heating furnace, at fire door, is provided with puff prot at described burner hearth, in heating
During, be connected with nitrogen in described burner hearth all the time, when described door opened time, sprayed by described puff prot
Gas at fire door, form gas curtain.
A kind of split slide rail type rotary heating produced for warm forming the most according to claim 1
Stove, it is characterised in that: the center of described rotary funace is provided with a kind of novel slip-ring structure, in described slip ring
Portion is for placing the control line of heating furnace and anti-oxidation gas transmission pipeline, it is to avoid in rotary course, each stove
Control line is mutually wound around and interferes；At described slip ring structure, it is provided with fan and maintenance window, described fan drum
It is provided with shutter, beneficially slip ring internal heat dissipating；It is provided with motor in slip ring, heating furnace can be rotated and justify
Zhou Yundong.
A kind of split slide rail type rotary heating produced for warm forming the most according to claim 1
Stove, it is characterised in that: described rotary funace is made up of multiple single bodies of heater, it is possible to ensure that workpiece fills
Divide and be heated to assigned temperature, improve production efficiency；Described independent body of heater is provided with independent temperature control unit；
According to concrete engineering situation, can dismantle body of heater or assemble, whole heating furnace can by 3-12 individually
Body of heater forms, to adapt to different production technology demand for heat；According to concrete engineering situation, described is independent
Body of heater is it can also be designed the heating furnace of the longitudinal 1-9 layer of arrangement, in order to adapt to different productive temp requirements.
4. rotate according to a kind of split slide rail type produced for warm forming described in claim 1-3 and add
Hot stove, it is characterised in that: described rotary heating furnace bottom is provided with pulley gear, described pulley gear energy
Enough be fixed on ground slide rail and be connected, under the drive of slip ring, annularly track moves.
A kind of split slide rail type rotary heating produced for warm forming the most according to claim 1
Stove, it is characterised in that: the burner hearth of described independent body of heater is provided with nitrogen jet device at fire door, works as fire door
During unlatching, from top to bottom spray gas by nitrogen jet device, at stockhole, form gas curtain, in making stove
Outer formation positive and negative pressure, prevents gas exchange inside and outside stove, thus reduces the loss of fire box temperature；Meanwhile, institute
It is provided with channel of nitrogen in stating the burner hearth of independent body of heater, makes burner hearth be in inert gas environment in the course of the work
In, reduce the oxidation of workpiece.
A kind of split slide rail type rotary heating produced for warm forming the most according to claim 1
Stove, it is characterised in that: the mode of heating of described rotary funace can be resistor rod heating, electromagnetic induction heating,
Hybrid Heating.
7. the split slide rail type rotation produced for warm forming as described in claim 1-6 is arbitrary
The production technology of heating furnace structure, it is characterised in that comprise the following steps:
Noble gas is passed through in heating furnace burner hearth, forms protection atmosphere, treat that inert gas concentration arrives predetermined
Inflation is stopped during value；Then heating furnace is heated, regulate in-furnace temperature by control system so that it is reach to refer to
Definite value is also incubated；Furnace bottom pulley is connected with slide rail, carries out circular motion by driven by motor body of heater along slide rail；
Rotating and postpone to specific bit, body of heater stops the rotation, and puff prot starts outwards to spray gas, door opened, shape
Become gas curtain；After specifying position to complete feeding, feeding, closing fire door, puff prot stops jet；Motor belt motor
Dynamic body of heater rotates the angle set, and again carries out feeding, feeding；So circulation, it is achieved produce continuously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298812.8A CN106017074B (en) | 2016-04-29 | 2016-04-29 | A kind of seperated slide rail type rotary heating furnace structure and production technology for warm forming production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298812.8A CN106017074B (en) | 2016-04-29 | 2016-04-29 | A kind of seperated slide rail type rotary heating furnace structure and production technology for warm forming production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106017074A true CN106017074A (en) | 2016-10-12 |
| CN106017074B CN106017074B (en) | 2019-02-12 |
Family
ID=57081339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610298812.8A Expired - Fee Related CN106017074B (en) | 2016-04-29 | 2016-04-29 | A kind of seperated slide rail type rotary heating furnace structure and production technology for warm forming production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106017074B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374691A (en) * | 2016-11-29 | 2017-02-01 | 北京三电机系统有限责任公司 | Slip ring heating device |
| CN108191462A (en) * | 2018-01-19 | 2018-06-22 | 平罗县祥美化工有限公司 | Rotating disc type fluidized bed furnace |
| CN109968514A (en) * | 2019-04-19 | 2019-07-05 | 广东金景陶节能科技有限公司 | A kind of idiosome molding device for grinding on kiln |
| CN115466837A (en) * | 2022-08-25 | 2022-12-13 | 北京首钢股份有限公司 | Furnace door fire-banking control method of steel rolling heating furnace |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002372375A (en) * | 2001-06-13 | 2002-12-26 | Ezaki Seisakusho:Kk | Annular multistage heating furnace |
| CN101625197A (en) * | 2008-12-01 | 2010-01-13 | 长春伟孚特汽车零部件有限公司 | Rotary hearth heating furnace with highly-efficient energy-saving ring-shaped hearth for warm-hot formation |
| CN103225952A (en) * | 2012-01-29 | 2013-07-31 | 江镇 | Rotary energy-saving ceramic kiln |
| CN103411425A (en) * | 2013-07-26 | 2013-11-27 | 大连理工大学 | Slide rail chain drive drawer-type heating furnace used for warm forming production |
| CN105423749A (en) * | 2015-12-04 | 2016-03-23 | 中国电子科技集团公司第四十八研究所 | Energy-saving type split double-layer roller way electrical kiln for permanent magnetic ferrite sintering |
| CN206037696U (en) * | 2016-04-29 | 2017-03-22 | 胡平 | A components of a whole that can function independently slide rail formula rotary funace structure for warm shaping production |
-
2016
- 2016-04-29 CN CN201610298812.8A patent/CN106017074B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002372375A (en) * | 2001-06-13 | 2002-12-26 | Ezaki Seisakusho:Kk | Annular multistage heating furnace |
| CN101625197A (en) * | 2008-12-01 | 2010-01-13 | 长春伟孚特汽车零部件有限公司 | Rotary hearth heating furnace with highly-efficient energy-saving ring-shaped hearth for warm-hot formation |
| CN103225952A (en) * | 2012-01-29 | 2013-07-31 | 江镇 | Rotary energy-saving ceramic kiln |
| CN103411425A (en) * | 2013-07-26 | 2013-11-27 | 大连理工大学 | Slide rail chain drive drawer-type heating furnace used for warm forming production |
| CN105423749A (en) * | 2015-12-04 | 2016-03-23 | 中国电子科技集团公司第四十八研究所 | Energy-saving type split double-layer roller way electrical kiln for permanent magnetic ferrite sintering |
| CN206037696U (en) * | 2016-04-29 | 2017-03-22 | 胡平 | A components of a whole that can function independently slide rail formula rotary funace structure for warm shaping production |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374691A (en) * | 2016-11-29 | 2017-02-01 | 北京三电机系统有限责任公司 | Slip ring heating device |
| CN108191462A (en) * | 2018-01-19 | 2018-06-22 | 平罗县祥美化工有限公司 | Rotating disc type fluidized bed furnace |
| CN109968514A (en) * | 2019-04-19 | 2019-07-05 | 广东金景陶节能科技有限公司 | A kind of idiosome molding device for grinding on kiln |
| CN115466837A (en) * | 2022-08-25 | 2022-12-13 | 北京首钢股份有限公司 | Furnace door fire-banking control method of steel rolling heating furnace |
| CN115466837B (en) * | 2022-08-25 | 2023-12-26 | 北京首钢股份有限公司 | Fire banking control method for furnace door of steel rolling heating furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106017074B (en) | 2019-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106017074A (en) | Separated sliding rail type rotary heating furnace structure for warm-hot forming production and production technology thereof | |
| CN103060531B (en) | Annealing high-temperature furnace | |
| CN106969632B (en) | A kind of multiple-layer box type Hybrid Heating furnace | |
| CN106170568B (en) | For the metalliferous material in the open hearth of ring bottom to elongated flat, especially roll aluminium ingot progress heat-treating methods and equipment | |
| CN205347520U (en) | Long -pending suspension type heat treatment line of putting | |
| CN107860220A (en) | Energy-efficient automation tunnel cave | |
| CN106066627A (en) | A kind of safety glass production control system | |
| CN204787813U (en) | Enamel sintering device | |
| CN102029707B (en) | Heat setting device of pillow core | |
| CN105737597B (en) | A kind of multifunctional environment protection energy saving rotary kiln | |
| CN206037696U (en) | A components of a whole that can function independently slide rail formula rotary funace structure for warm shaping production | |
| CN201364015Y (en) | Surplus-heat pre-heating drying perlite bulking furnace | |
| CN106755888A (en) | A kind of industrial pipeline system automation heat treatment method and equipment | |
| CN210261940U (en) | Solid solution and aging integrated heat treatment device for aluminum alloy hub | |
| CN204848946U (en) | Waste heat utilization cycle stove at bottom of multilayer roller | |
| CN104529180B (en) | The production method of a kind of electric heating lamina membranacea and the equipment of production | |
| CN102251077A (en) | Novel hot-air internal circulation tempering furnace | |
| CN209960963U (en) | Heat treatment kiln | |
| CN204787779U (en) | Marching type enamel fritting furnace | |
| CN106498183A (en) | Process the system of lateritic nickel ore and its application in lateritic nickel ore is processed | |
| CN105349773A (en) | Cooling and drying synchronizing method for rotary hearth furnace | |
| CN105347324B (en) | Protection production line for continuous lithium iron phosphate high-temperature calcination atmosphere | |
| CN107937701A (en) | A kind of heat treatment system | |
| CN104911302A (en) | Horizontal multi-layer double circulating air rotary multifunctional metal workpiece heat treatment furnace structure | |
| CN104178604A (en) | Energy-consumption-optimized isothermal normalizing furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190212 Termination date: 20200429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |