CN2885881Y - Full-electric roller hearth-type continuous annealing furnace - Google Patents

Full-electric roller hearth-type continuous annealing furnace Download PDF

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Publication number
CN2885881Y
CN2885881Y CN 200620102512 CN200620102512U CN2885881Y CN 2885881 Y CN2885881 Y CN 2885881Y CN 200620102512 CN200620102512 CN 200620102512 CN 200620102512 U CN200620102512 U CN 200620102512U CN 2885881 Y CN2885881 Y CN 2885881Y
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roller
stove
furnace
full
continuous annealing
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CN 200620102512
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Chinese (zh)
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范本良
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JINZHOU TECHNOLOGY Co Inc
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Individual
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Abstract

The utility model discloses an all-electric hearth continuous annealing furnace which comprises a depiler, a roller hearth furnace, a discharge plate and an actuating system. Several transversely rotating carrying idlers, discharge plate carrying idlers and furnace carrying idlers are arranged at the depiler, the discharge plate, and the roller hearth furnace. The carrying idlers driven by the actuating system continuously rotate to make work-pieces move forward, by which, no fixed contact points between the work-pieces and roller ways exist, the work-pieces are uniformly heated with no damage and small shape distortion. Meanwhile because the furnace carrying idlers always rotates inside the roller hearth furnace, the heat dissipation is relatively small, and the furnace heat efficiency is high .At the same time artificial material pushing is not needed which greatly reduces the labor intensity, and increases labor efficiency. A number of temperature controling and indirect cooling devices are arranged in the furnace which enhances the cooling speed and accuracy of the workpieces. Thermal walls are provided between sections, which reduces the effect of the temperature among different sections, improves the temperature controlling accuracy and reduces the energy consumption.

Description

The full-electric roller hearth-type continuous annealing furnace
[technical field]
The utility model relates to metal heat treatmet, relates in particular to metal heat treatmet equipment.
[background technology]
Metal heat treatmet is metal works to be placed on be heated to suitable temperature in certain medium, and after in this temperature, keeping certain hour, again with a kind of technology of friction-motion speed refrigerative.Metal heat treatmet is one of important process in the machinofacture, compare with other complete processings, thermal treatment does not generally change the shape and the whole chemical ingredients of workpiece, but by changing the microstructure of workpiece inside, or change the chemical ingredients of workpiece surface, give or improve the use properties of workpiece.Be characterized in improving the inner quality of workpiece, and this generally not to be naked eyes can see.For making metal works have needed mechanical property, physicals and chemical property, except that reasonable select materials and various forming technology, thermal treatment process is requisite often.Iron and steel is a material most widely used in the mechanical industry, and the microstructure of iron and steel complexity can be controlled by thermal treatment, so the thermal treatment of iron and steel is the main contents of metal heat treatmet.In addition, aluminium, copper, magnesium, titanium etc. and alloy thereof also can change its mechanics, physics and chemical property by thermal treatment, to obtain different use propertieies.
Thermal treatment process generally comprises heating, insulation, three processes of cooling, has only two processes of heating and cooling sometimes.These processes overlap, and can not be interrupted.Heating is one of heat treated important procedure.The heating means of metal heat treatmet are a lot, are the earliest to adopt charcoal and coal as thermal source, and then using liquid and geseous fuel.The application of electricity makes heating be easy to control and non-environmental-pollution.Utilize these thermals source can direct heating, also can pass through fused salt or metal, so that the particle that floats carries out indirect heating.During METAL HEATING PROCESS, workpiece is exposed in the air, and oxidation, decarburization (being that the steel-iron components carbon contents reduces) usually take place, this for thermal treatment after the surface property of part very adverse influence is arranged.Thereby metal usually should be in controlled atmosphere or protective atmosphere, in the melting salt and heat in the vacuum, also available coating or Packaging Method are protected heating.Heating temperature is one of important technical parameter of thermal treatment process, selects and the control Heating temperature, and be the subject matter that guarantees thermal treatment quality.Heating temperature is different and different with heat treated purpose with processed metallic substance, but generally all is to be heated to more than the transformation temperature, to obtain high temperature microstructure.Changing in addition needs the regular hour, therefore when the metal works surface meets the requirements of Heating temperature, also must keep certain hour in this temperature, makes the internal and external temperature unanimity, and microstructure is changed fully, is called soaking time during this period of time.When adopting high-energy-density heating and surface heat to handle, rate of heating is exceedingly fast, and generally just do not have soaking time, and the soaking time of thermo-chemical treatment is often longer.Cooling also is an indispensable step in the heat treatment process, and method of cooling mainly is a controlled chilling speed because of technology is different.General annealed speed of cooling is the slowest, and the speed of cooling of normalizing is very fast, and the speed of cooling of quenching is faster.But go back invar kind difference and different requirements is arranged, for example empty hard steel just can harden with the same speed of cooling of normalizing.Metal heat treatmet technology can be divided into complete heat treatment substantially, surface heat is handled and the thermo-chemical treatment three major types.Different according to heating medium, Heating temperature and method of cooling, each big class can be divided into some different thermal treatment process again.Adopt different thermal treatment process with a kind of metal, can obtain different tissues, thereby have different performances.
Complete heat treatment is to the whole workpiece heating, then with suitable speed cooling, to change the metal heat treatmet technology of its whole mechanical property.The iron and steel complete heat treatment roughly has annealing, normalizing, quenching and four kinds of basic technologies of tempering.
Annealing is that workpiece is heated to proper temperature, adopt different soaking times according to material and workpiece size, slowly cool off then, purpose is the metal inside tissue to be reached or near equilibrium state, obtaining favorable manufacturability energy and use properties, perhaps is further to quench to do to organize to prepare.Normalizing is to cool off in air after workpiece is heated to suitable temperature, and the effect of normalizing is similar with annealing, and organizing of just obtaining is thinner, is usually used in improving the cutting ability of material, also is used for the part conduct final thermal treatment not high to ask for something sometimes.
Metallic heat treating furnace is to be used for equipment that metal is heat-treated, mainly is divided into flame furnace and electric furnace two classes by heat-supplying mode.Flame furnace also claims Fuel Furnace, is with solid, liquid or the geseous fuel heat output in stove workpiece to be heated; Electric furnace is in stove electric energy to be converted into heat workpiece is heated.The fuel source of flame furnace is wide, and price is low, is convenient to suit measures to local conditions to take different structures, helps reducing productive expense.To be that furnace temperature is all even be convenient to realize automatic control to the characteristics of electric furnace, and heating quality is good.By the energy transformation mode, electric furnace can be divided into resistance furnace, induction furnace and electric arc furnace again.
Metallic heat treating furnace can be divided into periodic and continous way two classes again by thermal regulation.The periodic stove claims the discontinuous stove again, and stove is interrupted to be produced, and furnace temperature changes in each heating period, mainly contains box-type furnace, Bogie hearth furnace, pit furnace etc.; Continuous furnace is the stove continuous production, divides temperature section in the burner hearth.The temperature of each section is constant in heat-processed, and workpiece progressively enters the pyritous heating zone by cryogenic preheating zone, mainly contains ring furnace, walking beam furnace, push rod furnace etc.
The flame furnace direct heating, rate of heating is fast, is difficult to realize accurate control, and the temperature control tolerance range is not high, and workpiece is had relatively high expectations to the temperature temperature control from being incubated to when cooling off, and it is low excessively to be prone to overtemperature and temperature, and environmental pollution is serious, and thermo-efficiency is lower, and the quality instability.The periodic stove carries out heating and cooling simultaneously with chassis, process furnace and workpiece, and body of heater accumulation of heat loss is big.Heat that absorbs during METAL HEATING PROCESS and the ratio that infeeds the heat in the stove are called furnace thermal efficiency.Continuous furnace is than the thermo-efficiency height of discontinuous stove, because the productivity height of continuous furnace, and be uninterrupted duty, the stove thermal system is in steady state, there is not periodic body of heater accumulation of heat loss, also because there is the section of a preheating furnace charge burner hearth inside, the flue gas part of waste heat is absorbed by the cold workpiece into stove, has reduced the temperature from kiln gas.
Present continuous ovens such as push rod furnace are to rely on pushing device with gap the charging tray and the workpiece that are placed on the track to be pushed in the stove, push away one by one of the charging tray in the stove, travel forward.Batch is big; The push rod continuous oven has also heated charging tray simultaneously at heated parts, and energy consumption is higher; The quantity of charging tray can not be too many, and process cycle is longer; The microstructure scattered error is bigger in the same stove, the product lack of homogeneity; Oxidation and decarbonization is serious; Labor intensity is big.
So, if the structure of heat treatment furnace is rationally improved, make its both environmental protection, can make full use of the energy again, can also guarantee that thermal effectiveness is good, become the important topic of metal heat treatmet industry research.
[summary of the invention]
The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of full-electric roller hearth-type continuous annealing furnace, environmental protection, energy-conservation, thermal effectiveness is good.
For achieving the above object, the utility model proposes a kind of full-electric roller hearth-type continuous annealing furnace, comprise loading bay and discharge pedestal, also comprise stove and transmission system at the bottom of the roller, an end of stove is a loading bay at the bottom of the roller, the other end is a discharge pedestal, be provided with carrying roller in some stoves at the bottom of the described roller in the stove, transmission system comprises motor and transmission mechanism, and transmission mechanism is arranged at the bottom of the roller in the stove, motor is connected on the transmission mechanism, and carrying roller is arranged on the transmission mechanism in the stove.
As preferably, loading bay comprises feeding rack and some loading bay carrying rollers, and discharge pedestal comprises discharge rack and some discharge pedestal carrying rollers, also is provided with transmission mechanism on feeding rack and the discharge rack, and loading bay carrying roller and discharge pedestal carrying roller are separately positioned on the transmission mechanism.
As preferably, be provided with temperature control indirect cooling device in some stoves at the bottom of the roller in the stove.
As preferably, at the bottom of the roller in the stove branch preheating zone, heating zone, heat preservation zone, temperature control cooling zone, furnace cooling district and furnace cooling go out a plurality of sections such as district soon, be provided with the subregion insulated wall between each section.
As preferably, each section is provided with some radiator tubes, adopts full electrically heated.
As preferably, the discharge port of stove is provided with and goes out the two pass door soon at the bottom of the roller.
As preferably, the opening for feed of stove is provided with charging and regulates fire door at the bottom of the roller.
As preferably, transmission system also comprises the variable frequency adjustment device, links to each other with motor, is used for realizing the stepless time adjustment of workpiece walking speed.
The beneficial effects of the utility model: the utility model is at loading bay, discharge pedestal, the loading bay carrying roller of some horizontal rotations is set respectively in the stove at the bottom of the roller, carrying roller in discharge pedestal carrying roller and the stove, driving above-mentioned carrying roller by transmission system rotates continuously, thereby the workpiece on the carrying roller is constantly moved forward, like this, there is not the fixed point of contact between workpiece and the roller-way, workpiece is heated evenly, nothing is damaged, be out of shape for a short time, simultaneously because carrying roller stove internal rotation at the bottom of roller all the time in the stove, heat energy loss is less relatively, thermo-efficiency height in the stove, simultaneously do not need artificial pusher, significantly reduced labour intensity, and improved efficiency; Temperature control indirect cooling device in some stoves is set in the stove, has improved the speed of cooling of workpiece in stove and cooling precision; The subregion insulated wall is set between each section, has reduced the temperature effect between section and the section, improved temperature-controlled precision, reduced energy consumption; Each section is provided with some radiator tubes, adopts full electrically heated; The discharge port of stove is provided with and goes out the two pass door soon at the bottom of roller, has avoided forming convection of air between the furnace discharge mouth and opening for feed at the bottom of the roller, has reduced oxidation and decarbonization; The opening for feed of stove is provided with charging and regulates fire door at the bottom of roller, just controls the air capacity that enters in the stove by regulating fire door, has reduced oxidation and decarbonization; Also be provided with step-down gear and variable frequency adjustment device in the transmission system,, and realized the stepless time adjustment of workpiece walking speed for workpiece movement provides rational speed.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the structural representation of the utility model full-electric roller hearth-type continuous annealing furnace.
[embodiment]
Be illustrated in figure 1 as the structural representation of the utility model full-electric roller hearth-type continuous annealing furnace.Comprise stove 2 at the bottom of loading bay 1, the roller, discharge pedestal 3 and transmission system 4, an end of stove 2 is loading bays 1 at the bottom of the roller, the other end is a discharge pedestal 3, be provided with carrying roller 22 in some stoves at the bottom of the described roller in the stove 2, transmission system 4 comprises motor 41 and transmission mechanism 42, transmission mechanism 42 is arranged at the bottom of the roller in the stove 2, and motor 41 is connected on the transmission mechanism 42, and carrying roller 22 is arranged on the transmission mechanism 42 in the stove.Loading bay 1 comprises feeding rack 11 and some loading bay carrying rollers 12, discharge pedestal 3 comprises discharge rack 31 and some discharge pedestal carrying rollers 32, also be provided with transmission mechanism 42 on feeding rack 11 and the discharge rack 31, loading bay carrying roller 12 and discharge pedestal carrying roller 32 are separately positioned on the transmission mechanism 42.During metal heat treatmet workpiece is placed on the loading bay carrying roller 12, open transmission system 4 and drive 12 rotations of loading bay carrying roller, rotation by loading bay carrying roller 12 is sent into workpiece at the bottom of the roller in the stove in the stove 2 on the carrying roller 22, equally, because the rotation of carrying roller 22 in the stove, workpiece constantly moves forward on the carrying roller 22 in stove, handles respectively through each section in the stove 2 at the bottom of the roller, and finally moves on the discharge pedestal 3.Do not have the fixed point of contact between workpiece and the roller-way, workpiece is heated evenly, and nothing is damaged, and is out of shape for a short time, does not need artificial pusher again, has reduced labour intensity, has improved efficiency.
There are preheating zone I, heating zone II, heat preservation zone III, temperature control cooling zone IV, furnace cooling district V, furnace cooling to go out to distinguish a plurality of sections such as VI soon by the function branch in the stove 2 at the bottom of the roller, in order to reduce the temperature effect between section and the section, the raising temperature-controlled precision also cuts down the consumption of energy, be provided with subregion insulated wall 25 between each section, the quantity of section and front and back order can suitably be adjusted and reasonable Arrangement according to heat treatment requirements.Each section is provided with some radiator tubes 21, adopts full electrically heated, and radiator tube 21 can rationally distribute up and down according to the concrete heat treatment requirements of workpiece, makes furnace temperature even.
Be provided with temperature control indirect cooling device 23 in some stoves at the bottom of the roller in the stove 2.According to the heat treatment of workpieces requirement, arranging in the zone that rationally heat-eliminating medium with the speed of cooling of raising workpiece in stove and cooling precision, thereby reaches high-yield high-quality by the cooling pipe racks heat of cloth in stove.
At the bottom of roller, adopt refractory insulating layer 24 around the burner hearth of stove 2, to guarantee that temperature loss is less in the stove.
Form convection of air between the opening for feed of stove 2 and the discharge port at the bottom of the roller, reduce oxidation and decarbonization, the discharge port of stove 2 is provided with and goes out two pass door 26 soon at the bottom of the roller.
The opening for feed of stove 2 is provided with charging and regulates fire door 27 at the bottom of the roller.Control the air capacity that enters in the stove by the height of regulating fire door 27, reduce oxidation and decarbonization.
Temperature control indirect cooling device 23 in carrying roller 22, the stove in the above-mentioned radiator tube 21, stove, refractory insulating layer 24, subregion insulated wall 25, go out two pass door 26, charging soon and regulate fire door 27 and transmission mechanism 42 etc. and all be arranged in the furnace shell 28 for the sealing cell body that reduces the workpiece oxidation and decarbonization etc.
Transmission system 4 also comprises step-down gear and variable frequency adjustment device, all links to each other with motor 41, and step-down gear is regulated the output speed of motor 41, and the variable frequency adjustment device is used for realizing the stepless time adjustment of workpiece walking speed.
The utility model can be used for the annealing and the normalizing treatment of metal heat treatmet.Not only be applicable to large-scale workpiece, and can be to adorning the basket processing than small workpiece and irregular workpiece.
Above-mentioned embodiment is to further specify of the present utility model, is not to concrete qualification of the present utility model, and any simple transformation to the utility model structure all belongs to protection domain of the present utility model.

Claims (9)

1. full-electric roller hearth-type continuous annealing furnace, comprise loading bay (1) and discharge pedestal (3), it is characterized in that: also comprise stove (2) and transmission system (4) at the bottom of the roller, one end of stove at the bottom of the roller (2) is loading bay (1), the other end is discharge pedestal (3), be provided with carrying roller (22) in some stoves in the stove at the bottom of the described roller (2), transmission system (4) comprises motor (41) and transmission mechanism (42), transmission mechanism (42) is arranged at the bottom of the roller in the stove (2), motor (41) is connected on the transmission mechanism (42), and carrying roller (22) is arranged on the transmission mechanism (42) in the stove.
2. full-electric roller hearth-type continuous annealing furnace as claimed in claim 1, it is characterized in that: loading bay (1) comprises feeding rack (11) and some loading bay carrying rollers (12), discharge pedestal (3) comprises discharge rack (31) and some discharge pedestal carrying rollers (32), also be provided with transmission mechanism (42) on feeding rack (11) and the discharge rack (31), loading bay carrying roller (12) and discharge pedestal carrying roller (32) are separately positioned on the transmission mechanism (42).
3. full-electric roller hearth-type continuous annealing furnace as claimed in claim 1 is characterized in that: be provided with temperature control indirect cooling device (23) in some stoves in the stove at the bottom of the roller (2).
4. full-electric roller hearth-type continuous annealing furnace as claimed in claim 1, it is characterized in that: branch preheating zone (I), heating zone (II), heat preservation zone (III), temperature control cooling zone (IV), furnace cooling district (V) and furnace cooling go out district's a plurality of sections such as (VI) soon in the stove at the bottom of the roller (2), are provided with subregion insulated wall (25) between each section.
5. full-electric roller hearth-type continuous annealing furnace as claimed in claim 4 is characterized in that: each section is provided with some radiator tubes (21), adopts full electrically heated.
6. full-electric roller hearth-type continuous annealing furnace as claimed in claim 1 is characterized in that: the discharge port of stove at the bottom of the roller (2) is provided with and goes out two pass door (26) soon.
7. as any one described full-electric roller hearth-type continuous annealing furnace among the claim 1-6, it is characterized in that: the opening for feed of stove at the bottom of the roller (2) is provided with charging and regulates fire door (27).
8. as any one described full-electric roller hearth-type continuous annealing furnace among the claim 1-6, it is characterized in that: transmission system (4) also comprises the variable frequency adjustment device, links to each other with motor (41), is used for realizing the stepless time adjustment of workpiece walking speed.
9. full-electric roller hearth-type continuous annealing furnace as claimed in claim 7 is characterized in that: transmission system (4) also comprises the variable frequency adjustment device, links to each other with motor (41), is used for realizing the stepless time adjustment of workpiece walking speed.
CN 200620102512 2006-04-10 2006-04-10 Full-electric roller hearth-type continuous annealing furnace Expired - Lifetime CN2885881Y (en)

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101654724B (en) * 2009-07-17 2011-01-26 苏州工业园区姑苏科技有限公司 Continuous high-speed steel protective atmosphere quenching furnace
CN102162699A (en) * 2010-02-24 2011-08-24 邹家福 Partitioning device for industrial gas furnace
CN102220467A (en) * 2010-04-15 2011-10-19 上海宝钢设备检修有限公司 All-fiber mantle-mobile hot air circulation annealing furnace
CN102410730A (en) * 2011-12-09 2012-04-11 福州市陶瓷行业技术创新中心 Spaced electric heating roller kiln
CN103134311A (en) * 2011-11-22 2013-06-05 日本碍子株式会社 Method for preventing alignment disorder of workpiece in roller hearth kiln
CN103468919A (en) * 2013-08-12 2013-12-25 舞阳钢铁有限责任公司 Method for reducing roll marks on surface of steel plate in quenching furnace
CN103498037A (en) * 2013-09-17 2014-01-08 山东建筑大学 Roller bottom type continuous heating furnace for track shoe
CN103805756A (en) * 2013-10-17 2014-05-21 芜湖长启炉业有限公司 Roller hearth foaming aluminum isothermal annealing furnace
CN104818370A (en) * 2015-03-13 2015-08-05 宁波德艺钢管制造有限公司 Annealing furnace
CN106148653A (en) * 2016-08-31 2016-11-23 成都真火科技有限公司 A kind of material treatment systems
CN106595298A (en) * 2016-12-30 2017-04-26 重庆凌达磁材科技有限公司 Overlapping-type double-layer electrical heating roller kiln
CN106755888A (en) * 2016-11-23 2017-05-31 黎炜杰 A kind of industrial pipeline system automation heat treatment method and equipment
CN106944555A (en) * 2017-05-18 2017-07-14 赵洪栋 A kind of hot press-formed apparatus for production line of short route and its production technology
CN108977643A (en) * 2018-09-27 2018-12-11 江阴市茂昌铸造有限公司 A kind of continuous temperature insulation annealing furnace
CN109502960A (en) * 2019-01-22 2019-03-22 安徽凤阳亚欧玻璃工艺品有限公司 A kind of high boron glass tea set stress elimination equipment
CN110468269A (en) * 2019-08-12 2019-11-19 苏州阿特拉斯机器人系统工程有限公司 A kind of tempering heat shield for full-automatic Q-tempering assembly line
CN111108221A (en) * 2017-09-01 2020-05-05 施瓦兹有限责任公司 Method for heating metal parts to a target temperature and corresponding roller hearth furnace
CN111876573A (en) * 2020-07-06 2020-11-03 海盐金牛机械科技股份有限公司 Stainless steel bolt annealing device and annealing process

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101654724B (en) * 2009-07-17 2011-01-26 苏州工业园区姑苏科技有限公司 Continuous high-speed steel protective atmosphere quenching furnace
CN102162699A (en) * 2010-02-24 2011-08-24 邹家福 Partitioning device for industrial gas furnace
CN102220467A (en) * 2010-04-15 2011-10-19 上海宝钢设备检修有限公司 All-fiber mantle-mobile hot air circulation annealing furnace
CN102220467B (en) * 2010-04-15 2013-01-30 上海宝钢设备检修有限公司 All-fiber mantle-mobile hot air circulation annealing furnace
CN103134311A (en) * 2011-11-22 2013-06-05 日本碍子株式会社 Method for preventing alignment disorder of workpiece in roller hearth kiln
CN102410730B (en) * 2011-12-09 2013-07-10 福州市陶瓷行业技术创新中心 Spaced type electrothermal roller table kiln
CN102410730A (en) * 2011-12-09 2012-04-11 福州市陶瓷行业技术创新中心 Spaced electric heating roller kiln
CN103468919A (en) * 2013-08-12 2013-12-25 舞阳钢铁有限责任公司 Method for reducing roll marks on surface of steel plate in quenching furnace
CN103468919B (en) * 2013-08-12 2015-05-20 舞阳钢铁有限责任公司 Method for reducing roll marks on surface of steel plate in quenching furnace
CN103498037A (en) * 2013-09-17 2014-01-08 山东建筑大学 Roller bottom type continuous heating furnace for track shoe
CN103805756A (en) * 2013-10-17 2014-05-21 芜湖长启炉业有限公司 Roller hearth foaming aluminum isothermal annealing furnace
CN104818370B (en) * 2015-03-13 2017-07-04 宁波德艺钢管制造有限公司 Annealing furnace
CN104818370A (en) * 2015-03-13 2015-08-05 宁波德艺钢管制造有限公司 Annealing furnace
CN106148653A (en) * 2016-08-31 2016-11-23 成都真火科技有限公司 A kind of material treatment systems
CN106755888A (en) * 2016-11-23 2017-05-31 黎炜杰 A kind of industrial pipeline system automation heat treatment method and equipment
CN106755888B (en) * 2016-11-23 2018-08-31 东莞市孟成机械科技有限公司 A kind of industrial pipeline system automation heat treatment method and equipment
CN106595298A (en) * 2016-12-30 2017-04-26 重庆凌达磁材科技有限公司 Overlapping-type double-layer electrical heating roller kiln
CN106944555A (en) * 2017-05-18 2017-07-14 赵洪栋 A kind of hot press-formed apparatus for production line of short route and its production technology
CN111108221A (en) * 2017-09-01 2020-05-05 施瓦兹有限责任公司 Method for heating metal parts to a target temperature and corresponding roller hearth furnace
CN108977643A (en) * 2018-09-27 2018-12-11 江阴市茂昌铸造有限公司 A kind of continuous temperature insulation annealing furnace
CN109502960A (en) * 2019-01-22 2019-03-22 安徽凤阳亚欧玻璃工艺品有限公司 A kind of high boron glass tea set stress elimination equipment
CN109502960B (en) * 2019-01-22 2024-04-02 安徽凤阳亚欧玻璃工艺品有限公司 High boron glass tea set stress relief equipment
CN110468269A (en) * 2019-08-12 2019-11-19 苏州阿特拉斯机器人系统工程有限公司 A kind of tempering heat shield for full-automatic Q-tempering assembly line
CN111876573A (en) * 2020-07-06 2020-11-03 海盐金牛机械科技股份有限公司 Stainless steel bolt annealing device and annealing process

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