CN109554520A - A kind of mesh-belt type hot air circulation annealing stove - Google Patents
A kind of mesh-belt type hot air circulation annealing stove Download PDFInfo
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- CN109554520A CN109554520A CN201910060833.XA CN201910060833A CN109554520A CN 109554520 A CN109554520 A CN 109554520A CN 201910060833 A CN201910060833 A CN 201910060833A CN 109554520 A CN109554520 A CN 109554520A
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- blower
- air
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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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D1/34—Methods of heating
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention belongs to tempering furnace technical fields, specifically a kind of mesh-belt type hot air circulation annealing stove, including mesh belt, transfer roller, shaft, rack, passive belt wheel, transmission belt, driving pulley, motor, furnace body, cabinet, electric pushrod, plate body, combustion box, burning chamber door, burner, high temperature pipe, the first blower, the first blower rack, transverse tube, tuyere, backwind tube, water tank, water inlet pipe, drainpipe, cooling water, air inlet pipe, the second blower, flue gas leading and wind scoop.Burner is arranged inside combustion box the present invention, and the hot-air to burn internally is blowed by transverse tube and tuyere to furnace interior by the first blower, combustion box generates negative pressure under the action of the first blower, combustion box by backwind tube by inside the air resorption to combustion box of furnace interior, to realize hot air circulation；The hot gas of material generation can be absorbed in the second blower being arranged, and hot gas is delivered in cooling water by air inlet pipe, can effectively reduce tempering furnace for external influence.
Description
Technical field
The invention belongs to tempering furnace technical field, specifically a kind of mesh-belt type hot air circulation annealing stove.
Background technique
Tempering furnace carries out the light conjunction such as tempering and aluminum alloy die casting, piston, aluminium sheet for common metal parts in air
Golden parts quenching, annealing, aging strengthening model are used.Shell has steel plate and fashioned iron to be welded, and trolley is welded by fashioned iron and steel plate,
Trolley reduces heat radiation and convection losses by soft contact with furnace lining and sand seal mechanism, and furnace sealing is effectively ensured.
The air circulating system of traditional mesh belt tempering furnace mainly directly blows to furnace interior using a blower, this kind of side
Method can only generate air flowing, but cannot when air circulation, frequently can lead in furnace hot-air and overflow, to make in rate
Heat energy loss；Moreover, material itself has certain heat, these heats are often when the material of heating transports furnace body by mesh belt
The temperature in the tempering furnace external world is influenced, to affect to staff or other equipment.In consideration of it, of the invention
It proposes a kind of mesh-belt type hot air circulation annealing stove, has the following characteristics that
(1) present invention proposes a kind of mesh-belt type hot air circulation annealing stove, and burner is arranged inside combustion box the present invention,
And the hot-air to burn internally is blowed by transverse tube and tuyere to furnace interior by the first blower, combustion box is first
Generate negative pressure under the action of blower, combustion box by backwind tube by inside the air resorption to combustion box of furnace interior, thus real
Existing hot air circulation, the drawbacks of preventing furnace interior air pressure excessively high and hot-air is caused to overflow.
(2) present invention proposes that material generation can be absorbed in a kind of mesh-belt type hot air circulation annealing stove, the second blower of setting
Hot gas, and hot gas is delivered in cooling water by air inlet pipe, can effectively reduce tempering furnace for external influence, should
Apparatus structure is simple, easy to use, is suitble to promote the use of.
Summary of the invention
The object of the invention is that a kind of mesh-belt type hot air circulation annealing stove is provided to solve the above-mentioned problems, this hair
It is bright that burner is arranged inside combustion box, and the hot-air to burn internally is passed through by transverse tube and tuyere by the first blower
It blows to furnace interior, combustion box generates negative pressure under the action of the first blower, and combustion box passes through backwind tube for furnace interior
Inside air resorption to combustion box, to realize hot air circulation, prevents furnace interior air pressure excessively high and hot-air is caused to overflow
The hot gas of material generation can be absorbed in drawback, the second blower of setting, and hot gas is delivered in cooling water by air inlet pipe, can
Effectively to reduce tempering furnace for external influence, the apparatus structure is simple, easy to use, is suitble to promote the use of.
The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of mesh-belt type hot air circulation annealing stove, including net
Band, hot air circulating mechanism and hot gas processing mechanism, wherein the both ends of the mesh belt are socketed in the surface of transfer roller, described in two
The inside of transfer roller is socketed with shaft, and two shafts are rotatably connected on the both ends of rack, is placed in the shaft in left side
Surface be connected with passive belt wheel, the passive belt wheel is sequentially connected driving pulley by transmission belt, and the driving pulley is affixed
In the output end of motor, the motor is fixed in the bottom of motor, and the top of the motor is connected with furnace body, and the furnace body is leaning on
The side wall of nearly motor is connected with cabinet, and the top inner wall of the cabinet is connected with electric pushrod, the output end of the electric pushrod
It is connected with plate body, the bottom end of the plate body is placed in the outside of cabinet through the bottom of cabinet；
The hot air circulating mechanism includes combustion box, burner, high temperature pipe and transverse tube, and the top side of the furnace body is affixed
There is combustion box, the bottom interior wall of the combustion box is connected with burner, and the side connection of the combustion box installs the one of high temperature pipe
End, the other end of the high temperature pipe are fixed in the air intake of the first blower, and first blower is affixed by the first blower rack
Run through the top of furnace body in the outlet air end of the top surface of furnace body, first blower and is fixed in the top of transverse tube, the cross
The bottom of pipe is equidistantly connected to several identical tuyeres of installation, and the top connection of the furnace body is equipped with backwind tube, the backwind tube
Top connection be mounted on side wall of the combustion box far from high temperature pipe；
The hot gas processing mechanism includes water tank, air inlet pipe, the second blower and wind scoop, and the top of the furnace body is far from combustion
The side of saggar is connected with water tank, one end of the top connection installation air inlet pipe of the water tank, the other end of the air inlet pipe
Connection is mounted on the outlet air end of the second blower, and second blower is fixed in the top of furnace body by the second blower rack, and described the
One end of the air intake connection installation flue gas leading of two blowers, the other end connection of the flue gas leading are mounted on the top of wind scoop,
The wind scoop is fixed in side wall top of the furnace body far from the first blower rack.
Preferably, the mesh belt runs through the two side walls of furnace body.
Preferably, the top of the combustion box is hingedly equipped with burning chamber door.
Preferably, the top connection of the water tank is equipped with water inlet pipe, and the side wall connection of the water tank is equipped with drainpipe,
The end of the drainpipe is equipped with pipe lid, and the inside of the water tank is equipped with cooling water.
Preferably, one end of the air inlet pipe is placed in the inside of water tank at the top of water tank, and the air inlet pipe is being set
One end inside water tank is " J " font structure.
Preferably, the horizontal plane of the cooling water is placed in the port inside water tank higher than air inlet pipe.
The beneficial effects of the present invention are:
(1) present invention proposes a kind of mesh-belt type hot air circulation annealing stove, and burner is arranged inside combustion box the present invention,
And the hot-air to burn internally is blowed by transverse tube and tuyere to furnace interior by the first blower, combustion box is first
Generate negative pressure under the action of blower, combustion box by backwind tube by inside the air resorption to combustion box of furnace interior, thus real
Existing hot air circulation, the drawbacks of preventing furnace interior air pressure excessively high and hot-air is caused to overflow.
(2) present invention proposes that material generation can be absorbed in a kind of mesh-belt type hot air circulation annealing stove, the second blower of setting
Hot gas, and hot gas is delivered in cooling water by air inlet pipe, can effectively reduce tempering furnace for external influence, should
Apparatus structure is simple, easy to use, is suitble to promote the use of.
Detailed description of the invention
Fig. 1 is whole interior structural schematic diagram of the present invention；
Fig. 2 is enlarged structure schematic diagram at A in Fig. 1 of the present invention；
Fig. 3 is overall structure of the present invention.
In figure: 1, mesh belt, 2, transfer roller, 3, shaft, 4, rack, 5, passive belt wheel, 6, transmission belt, 7, driving pulley, 8, electricity
Machine, 9, furnace body, 10, cabinet, 11, electric pushrod, 12, plate body, 13, combustion box, 14, burning chamber door, 15, burner, 16, high temperature
Pipe, the 17, second blower rack, the 18, first blower, the 19, first blower rack, 20, transverse tube, 21, tuyere, 22, backwind tube, 23, water tank,
24, water inlet pipe, 25, drainpipe, 26, cooling water, 27, air inlet pipe, the 28, second blower, 29, flue gas leading, 30, wind scoop.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to shown in Fig. 1-3, a kind of mesh-belt type hot air circulation annealing stove, including mesh belt 1, for the wind to tempering furnace into
The hot air circulating mechanism that row recycles and the hot gas processing mechanism for being handled the hot gas inside tempering furnace, wherein
The both ends of the mesh belt 1 are socketed in the surface of transfer roller 2, and convenient for transmission, the inside of two transfer rollers 2 is socketed with shaft 3,
Convenient for transmission, two shafts 3 are rotatably connected on the both ends of rack 4, and the surface for the shaft 3 for being placed in left side is connected with
Passive belt wheel 5, convenient for transmission, the passive belt wheel 5 is by the transmission connection driving pulley 7 of transmission belt 6, convenient for transmission, the master
Movable belt pulley 7 is fixed in the output end of motor 8, and convenient for providing power, the motor 8 is fixed in the bottom of motor 8, the motor 8
Top be connected with furnace body 9, convenient for firing material, the furnace body 9 is being connected with cabinet 10, the case close to the side wall of motor 8
The top inner wall of body 10 is connected with electric pushrod 11, and convenient for control plate body, the output end of the electric pushrod 11 is connected with plate body
12, the bottom end of the plate body 12 is placed in the outside of cabinet 10 through the bottom of cabinet 10, convenient for one end of closed furnace body 9；
The hot air circulating mechanism includes combustion box 13, burner 15, high temperature pipe 16 and transverse tube 20, the top of the furnace body 9
Portion side is connected with combustion box 13, and convenient for heating air, the bottom interior wall of the combustion box 13 is connected with burner 15, convenient for adding
Hot-air, one end of the side connection installation high temperature pipe 16 of the combustion box 13, convenient for making hot-air circulation, the high temperature pipe 16
Other end be fixed in the air intake of the first blower 18, convenient for making hot-air circulation, first blower 18 passes through the first wind
Rack 19 is fixed in the top surface of furnace body 9, and the outlet air end of first blower 18 runs through the top of furnace body 9 and is fixed in transverse tube
20 top, convenient for making hot-air circulation, the bottom of the transverse tube 20 is equidistantly connected to several identical tuyeres 21 of installation, and being convenient for will
Hot-air is sprayed at surface of material, and the top connection of the furnace body 9 is equipped with backwind tube 22, the top connection of the backwind tube 22
It is mounted on side wall of the combustion box 13 far from high temperature pipe 16, convenient for will be inside the air return inside furnace body 9 to combustion box 13；
The hot gas processing mechanism includes water tank 23, air inlet pipe 27, the second blower 28 and wind scoop 30, the top of the furnace body 9
Portion is connected with water tank 23 in the side far from combustion box 13, convenient for cooling, the top connection installation air inlet pipe 27 of the water tank 23
One end, convenient for the hot gas of material to be delivered in cooling water 26, the connection of the other end of the air inlet pipe 27 is mounted on second
The outlet air end of blower 28, convenient for keeping materials with distributed hot air dynamic, second blower 28 is fixed in furnace body 9 by the second blower rack 17
Top, one end of the air intake connection installation flue gas leading 29 of second blower 28, the other end connection of the flue gas leading 29
It is mounted on the top of wind scoop 30, the wind scoop 30 is fixed in side wall top of the furnace body 9 far from the first blower rack 19, is convenient for gleanings
Expect hot gas.
The mesh belt 1 runs through the two side walls of furnace body 9, convenient for conveying material；It hingedly installs at the top of the combustion box 13
There are burning chamber door 14, easy access；The top connection of the water tank 23 is equipped with water inlet pipe 24, the side wall connection of the water tank 23
Drainpipe 25 is installed, the end of the drainpipe 25 is equipped with pipe lid, and the inside of the water tank 23 is equipped with cooling water 26, is convenient for
Cooling water 26 and discharge cooling water 26 are injected into water tank 23, cooling water is for cooling down material hot gas；The one of the air inlet pipe 27
End is placed in the inside of water tank 23 through the top of water tank 23, and the air inlet pipe 27 is " J " in the one end being placed in inside water tank 23
Font structure is convenient for material hot gas；The horizontal plane of the cooling water 26 is higher than air inlet pipe 27 and is placed in the port inside water tank 23, just
In cooling material hot gas.
In the use of the present invention, the electric elements occurred in the application external connection power supply and controller when in use,
Material to be heated is placed on to the surface of mesh belt 1, motor 8 is opened by controller, motor passes through driving pulley 7, transmission belt 6
Shaft 3 is driven to rotate with passive belt wheel 5, shaft 3 drives transfer roller 2 to rotate, and transfer roller 2 drives mesh belt 1 to rotate.Mesh belt 1 is defeated by material
It send to furnace body 9, after material is transported to 9 inside of furnace body, controller controls electric pushrod 11 and works, and electric pushrod 11 will
Plate body 12 pushes down on, and by furnace body 9 in the closure of openings close to 8 side of motor, after electric pushrod 11 works, controller control
Burner 15, the first blower 18 and the work of the second blower 19, burner 15 heat the air inside combustion box 13, the first blower
18 detach the hot-air inside combustion box 13 to transverse tube 20, and the hot-air in transverse tube 20 is blowed by tuyere 21 to material table
Face begins to warm up material, increases since the temperature moment inside furnace body 9 increases with air capacity, gas instantaneous expansion leads to furnace body
Air pressure enhancing inside 9, extra air are entered inside combustion box 13 by backwind tube 22, and the later period is continuous due to the first blower 18
To 9 delivered inside air of furnace body, the air inside furnace body 9 constantly passes through backwind tube 22 and enters inside combustion box 13, thus
Realize hot air circulation；
After material heating, controller controls motor 8 and rotates, and ibid principle, mesh belt 1 transport material out of furnace body 9
Out, the hot gas that material is issued is entered in cooling water 26 by wind scoop 30, flue gas leading 29, the second blower 28 and air inlet pipe 27, object
Material hot gas is cooled down under the action of cooling water 26, to reduce material hot air discharge.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (6)
1. a kind of mesh-belt type hot air circulation annealing stove, it is characterised in that: followed including mesh belt (1), for the wind to tempering furnace
The hot air circulating mechanism that ring utilizes and the hot gas processing mechanism for being handled the hot gas inside tempering furnace, wherein described
The both ends of mesh belt (1) are socketed in the surface of transfer roller (2), and for being driven, the inside of two transfer rollers (2) is socketed with shaft
(3) for being driven, two shafts (3) are rotatably connected on the both ends of rack (4), are placed in the shaft (3) in left side
Surface is connected with passive belt wheel (5) for being driven, and the passive belt wheel (5) passes through transmission belt (6) transmission connection driving pulley (7)
For being driven, the output end that the driving pulley (7) is fixed in motor (8) is used to provide power, and the motor (8) is fixed in electricity
The bottom of machine (8), the top of the motor (8) are connected with furnace body (9) for firing material, and the furnace body (9) is close to motor
(8) side wall is connected with cabinet (10), and the top inner wall of the cabinet (10) is connected with electric pushrod (11) and is used to control plate body,
The output end of the electric pushrod (11) is connected with plate body (12), and the bottom of cabinet (10) is run through simultaneously in the bottom end of the plate body (12)
It is placed in the outside of cabinet (10), is used for the one end of closed furnace body (9)；
The hot air circulating mechanism includes combustion box (13), burner (15), high temperature pipe (16) and transverse tube (20), the furnace body
(9) top side is connected with combustion box (13), and for heating air, the bottom interior wall of the combustion box (13) is connected with burning
Device (15), for heating air, one end of side connection installation high temperature pipe (16) of the combustion box (13), for making hot-air
Circulation, the other end of the high temperature pipe (16) is fixed in the air intake of the first blower (18), described for making hot-air circulation
First blower (18) is fixed in the top surface of furnace body (9), the outlet air of first blower (18) by the first blower rack (19)
End runs through the top of furnace body (9) and is fixed in the top of transverse tube (20), for making hot-air circulation, the bottom of the transverse tube (20)
Equidistant connection is installed several identical tuyeres (21) and is connected at the top of the furnace body (9) for hot-air to be sprayed at surface of material
Logical to be equipped with backwind tube (22), the top connection of the backwind tube (22) is mounted on the side of combustion box (13) far from high temperature pipe (16)
Wall, for the internal air return of furnace body (9) is internal to combustion box (13)；
The hot gas processing mechanism includes water tank (23), air inlet pipe (27), the second blower (28) and wind scoop (30), the furnace body
(9) top is connected with water tank (23) in the side far from combustion box (13), and for cooling down, the top of the water tank (23) is connected to
The one end for installing air inlet pipe (27), for the hot gas of material to be delivered in cooling water (26), the air inlet pipe (27) is in addition
One end, which is connected to, is mounted on the outlet air ends of the second blower (28), and for keeping materials with distributed hot air dynamic, second blower (28) passes through the
Two blower racks (17) are fixed in the top of furnace body (9), air intake connection installation flue gas leading (29) of second blower (28)
One end, the other end connection of the flue gas leading (29) are mounted on the top of wind scoop (30), and the wind scoop (30) is fixed in furnace body
(9) far from the side wall top of the first blower rack (19), it is used for collection material hot gas.
2. a kind of mesh-belt type hot air circulation annealing stove according to claim 1, it is characterised in that: the mesh belt (1) is run through
The two side walls of furnace body (9).
3. a kind of mesh-belt type hot air circulation annealing stove according to claim 1, it is characterised in that: the combustion box (13)
Top is hingedly equipped with burning chamber door (14).
4. a kind of mesh-belt type hot air circulation annealing stove according to claim 1, it is characterised in that: the top of the water tank (23)
Portion's connection is equipped with water inlet pipe (24), and the side wall connection of the water tank (23) is equipped with drainpipe (25), the drainpipe (25)
End pipe lid is installed, the inside of the water tank (23) is equipped with cooling water (26).
5. a kind of mesh-belt type hot air circulation annealing stove according to claim 1, it is characterised in that: the air inlet pipe (27)
One end is placed in the inside of water tank (23) at the top of water tank (23), and the air inlet pipe (27) is being placed in water tank (23) inside
One end is " J " font structure.
6. a kind of mesh-belt type hot air circulation annealing stove according to claim 1, it is characterised in that: the cooling water (26)
Horizontal plane is higher than air inlet pipe (27) and is placed in the internal port of water tank (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060833.XA CN109554520A (en) | 2019-01-23 | 2019-01-23 | A kind of mesh-belt type hot air circulation annealing stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060833.XA CN109554520A (en) | 2019-01-23 | 2019-01-23 | A kind of mesh-belt type hot air circulation annealing stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109554520A true CN109554520A (en) | 2019-04-02 |
Family
ID=65873585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910060833.XA Withdrawn CN109554520A (en) | 2019-01-23 | 2019-01-23 | A kind of mesh-belt type hot air circulation annealing stove |
Country Status (1)
| Country | Link |
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| CN (1) | CN109554520A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110079657A (en) * | 2019-05-17 | 2019-08-02 | 张家港艺新金属材料有限公司 | A kind of gas mixing feedway in saw blade tempering furnace |
| CN111944981A (en) * | 2020-08-27 | 2020-11-17 | 重庆长江工业炉制造有限公司 | Tempering furnace for heat treatment of car suspension spring |
| CN114754571A (en) * | 2022-04-06 | 2022-07-15 | 郭东鑫 | A vacuum tempering furnace for processing magnesium fluoride materials |
| CN116379746A (en) * | 2023-06-05 | 2023-07-04 | 常州市优博干燥工程有限公司 | Hot air circulation belt dryer |
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| CN205933923U (en) * | 2016-07-25 | 2017-02-08 | 无锡市曙光高强度紧固件有限公司 | Equipment for heat treatment of fastener |
| CN206281310U (en) * | 2016-11-12 | 2017-06-27 | 丽江云岭生物科技开发有限公司 | A kind of hot air circulation case for drying spirulina |
| CN109252037A (en) * | 2018-12-02 | 2019-01-22 | 扬州进扬耐热钢有限公司 | A kind of mesh belt heating furnace |
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| CN204987846U (en) * | 2015-06-04 | 2016-01-20 | 常州君合科技股份有限公司 | Guipure gas fritting furnace |
| CN205933923U (en) * | 2016-07-25 | 2017-02-08 | 无锡市曙光高强度紧固件有限公司 | Equipment for heat treatment of fastener |
| CN106191414A (en) * | 2016-08-30 | 2016-12-07 | 江苏丰东热技术股份有限公司 | A kind of net belt type built-in Cycling hot-blast heating tempering furnace and the method for heating thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110079657A (en) * | 2019-05-17 | 2019-08-02 | 张家港艺新金属材料有限公司 | A kind of gas mixing feedway in saw blade tempering furnace |
| CN110079657B (en) * | 2019-05-17 | 2024-01-26 | 东台艺新金属材料有限公司 | Gas mixing and feeding device in saw blade tempering furnace |
| CN111944981A (en) * | 2020-08-27 | 2020-11-17 | 重庆长江工业炉制造有限公司 | Tempering furnace for heat treatment of car suspension spring |
| CN114754571A (en) * | 2022-04-06 | 2022-07-15 | 郭东鑫 | A vacuum tempering furnace for processing magnesium fluoride materials |
| CN114754571B (en) * | 2022-04-06 | 2025-01-28 | 郭东鑫 | A vacuum tempering furnace for magnesium fluoride material processing |
| CN116379746A (en) * | 2023-06-05 | 2023-07-04 | 常州市优博干燥工程有限公司 | Hot air circulation belt dryer |
| CN116379746B (en) * | 2023-06-05 | 2023-08-22 | 常州市优博干燥工程有限公司 | Hot air circulation belt dryer |
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