CN106367580A - Suspension type air cooling system - Google Patents
Suspension type air cooling system Download PDFInfo
- Publication number
- CN106367580A CN106367580A CN201611043220.8A CN201611043220A CN106367580A CN 106367580 A CN106367580 A CN 106367580A CN 201611043220 A CN201611043220 A CN 201611043220A CN 106367580 A CN106367580 A CN 106367580A
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- Prior art keywords
- cooling
- injection
- bellows
- station
- type 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
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- Chemical & Material Sciences (AREA)
- 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)
- Heat Treatment Of Articles (AREA)
Abstract
The invention provides a suspension type air cooling system. The suspension type air cooling system comprises a cooling air supply device, a cooling air chamber and an exhaust device. The cooling air chamber is connected with the cooling air supply device and comprises a rapid cooling station and a slow cooling station. The rapid cooling station is arranged at the position of an inlet of the cooling air chamber, the slow cooling station is arranged on the side, away from the inlet of the cooling air chamber, of the rapid cooling station, and the slow cooling station and the rapid cooling station are connected. The exhaust device is connected with the cooling air chamber. The suspension type air cooling system has the beneficial effects that different cooling stations are set according to different cooling technology requirements, the rapid cooling station is arranged at the inlet section, multiple slow cooling stations are arranged behind the rapid cooling station according to different final cooling temperatures, and the cooling technology requirement of various axles can be met.
Description
Technical field
The present invention relates to field of cooling, specifically a kind of suspended type air cooling system.
Background technology
Typically adopt horizontal stepping line or vertical hanging line etc. several the heat treatment of Conventional trains axletree in prior art
Heat-treatment lines are produced.The axletree having particular/special requirement to motor-car axle etc. is frequently with suspension type heat-treatment lines, especially high quick-action
The production of axletree.In the cooling unit of suspension type heat-treatment lines, it is equipped with air cooling room.Air-cooling chamber of the prior art has
Some problem below:
1st, conventional air-cooling chamber injection structure is developed and is designed dependency structure only for the axletree of a certain class size, past
Require toward the cooling uniformity not adapting to sizes axletree.
2nd, conventional air-cooling chamber cooling air quantity maldistribution, cooling uniformity is poor, needs using other supplement heat rejecter
Measure requires come the uniform cooling to solve axletree, increased the complexity of equipment, and versatility is not strong.
3rd, conventional air-cooling chamber injection rate is relatively low, and injection structure is unreasonable, blower fan unreasonable allocation, is difficult to meet new
Rapid cooling technological requirement.
4th, the blower fan configuration of conventional air cooling system is frequently with constant speed blower fan, not only not energy-conservation, blower fan also no any regulation handss
Section；Air-cooling chamber does not have any temperature detection, and control level is very low it is impossible to realization automatically adjusts, and more cannot meet different rule
The different cooling techniques of lattice axletree require and accurate cooling requires.
All of these factors taken together leads to the level of existing suspension type heat-treatment lines low, and cooling uniformity is not, cooling
Ability especially rapid cooling ability not requires it is impossible to meet up-to-date axletree Technology for Heating Processing.
Content of the invention
The invention provides a kind of suspended type air cooling system, to reach the cooling uniformity that can adapt to sizes axletree
The purpose requiring.
The technical solution adopted for the present invention to solve the technical problems is: a kind of suspended type air cooling system, suspended air-cooled
System includes: cooling air supply device；Cooling air compartment, is connected with cooling air supply device, and cooling air compartment includes rapid cooling station and slow cooling
Station, rapid cooling station is arranged at the porch of cooling air compartment, and slow cooling station is arranged at rapid cooling station away from cooling air compartment entrance
Side, slow cooling station is connected with rapid cooling station；Exhaust apparatus, is connected with cooling air compartment.
Further, cooling air compartment includes the relative side wall of two parallel with workpiece traffic direction, and rapid cooling station eases up
Cold station is provided with multiple injection bellows, and multiple injection bellows are symmetricly set on two relative side walls.
Further, injection bellows are in that vertical direction is arranged, in the longitudinal cross-section perpendicular to workpiece traffic direction, injection
The cross sectional shape of bellows is right-angled trapezium, and the upper bottom edge of injection bellows towards side wall, is blown the bottom of bellows and is symmetrical arranged
Injection bellows bottom relatively, towards the roof of cooling air compartment, the bottom of injection bellows is for the hypotenuse of injection bellows
Wind end.
Further, the bottom of each injection bellows is provided with least two flat seam nozzles, at least two flat seam sprays
Mouth vertically be arranged in parallel, and each flat seam nozzle length vertically is with the bottom being blown bellows vertically
Length be adapted.
Further, cooling air compartment also includes the first injection plenum chamber and the second injection plenum chamber；Rapid cooling station is provided with
At least one first injection plenum chamber, multiple injection bellows of rapid cooling station are all connected with the corresponding first injection plenum chamber；Slow
Cold station is provided with least one second injection plenum chamber, and multiple injection bellows of slow cooling station are all collected with the corresponding second injection
Gas tank connects.
Further, cooling air supply device includes the first frequency conversion fan and the second frequency conversion fan, the first frequency conversion fan and the
One injection plenum chamber connects, and the second frequency conversion fan is connected with the second injection plenum chamber.
Further, cooling air compartment also includes aerofluxuss header, and aerofluxuss header is arranged on the top of cooling air compartment, along workpiece fortune
The direction of row, multiple injection bellows interval settings, form exhaust passage, exhaust passage and row between two neighboring injection bellows
Gas header connects.
Further, the entrance and exit of cooling air compartment is provided with Pneumatic opening ＆ closing formula room door.
Further, the exit of the exit of rapid cooling station and slow cooling station is provided with temperature survey assembly.
Further, the bottom of cooling air compartment is provided with the V-shaped oxygen for collecting the iron scale in axletree cooling procedure
Change iron sheet dreg collecting slot.
The invention has the beneficial effects as follows, different cooling stations are arranged according to the difference that cooling technique requires, in entrance
It is provided with rapid cooling station, the difference according to final chilling temperature arranges multiple slow cooling stations again after rapid cooling station, can meet each
The cooling technique planting axletree requires.
Brief description
The Figure of description constituting the part of the application is used for providing a further understanding of the present invention, and the present invention shows
Meaning property embodiment and its illustrate for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of suspended type air cooling system of the present invention；
Fig. 2 is for a-a in Fig. 1 to sectional view；
Fig. 3 is for b-b in Fig. 1 to sectional view.
In figure reference: 2, aerofluxuss header；3rd, it is blown bellows；31st, flat seam nozzle；4th, Pneumatic opening ＆ closing formula room door；51st,
One injection plenum chamber；52nd, the second injection plenum chamber；6th, workpiece；7th, suspension conveying system；8th, V-shaped iron scale dreg collecting slot.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Mutually combine.To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in Figure 1 to Figure 3, embodiments provide a kind of suspended type air cooling system, this suspended type air cooling system
Including cooling air supply device, cooling air compartment, exhaust apparatus, suspension conveying system 7 and supporting automatic control system.Cooling air compartment
It is connected with cooling air supply device, cooling air compartment includes rapid cooling station and slow cooling station, and rapid cooling station is arranged at entering of cooling air compartment
At mouthful, slow cooling station is arranged at the side away from cooling air compartment entrance for the rapid cooling station, and slow cooling station is connected with rapid cooling station, and
The injection efficiency of rapid cooling station is more than the injection efficiency of slow cooling station.Exhaust apparatus is connected with cooling air compartment.Above-mentioned suspension conveying
System 7 is arranged in cooling air compartment, and above-mentioned suspension conveying system 7 can drive cooled workpiece 6 level side along along Fig. 1
To movement.In Fig. 1, right side arrow is the porch of cooling air compartment.
The difference being required according to cooling technique, arranges different cooling stations, is provided with rapid cooling station in entrance, in rapid cooling
After station, the difference according to final chilling temperature arranges slow cooling station again, and the cooling technique that can meet various axletrees requires.
Need to say, the rapid cooling station rear portion in the embodiment of the present invention is provided with multiple slow cooling stations.Each station institute
The quantity of the workpiece 6 that can cool down determines according to technique, is generally two or three.Above-mentioned supporting automatic control system is used for controlling
Make whole suspended type air cooling system.
As shown in Fig. 2 cooling air compartment includes, and (workpiece traffic direction is horizontal arrow indication in Fig. 1 with workpiece traffic direction
Direction) parallel two relative side walls (upper and lower two side walls in Fig. 2), rapid cooling station and slow cooling station are provided with many
Individual injection bellows 3, multiple injection bellows 3 are symmetricly set on two relative side walls.In fig. 2 it can be seen that multiple injections
Bellows 3 are symmetricly set on the left and right sides of the traffic direction of workpiece 6, and along the traffic direction of workpiece 6, multiple injection bellows 3 are parallel
Interval setting.In the embodiment of the present invention, the spacing distance of multiple injection bellows 3 is identical.
As shown in figure 3, injection bellows 3 are in vertical direction arranging, in the longitudinal cross-section perpendicular to workpiece traffic direction, spray
The cross sectional shape of blow box 3 is right-angled trapezium, the upper bottom edge of injection bellows 3 towards side wall, be blown the bottom of bellows 3 with symmetrical
The bottom of the injection bellows 3 of setting relatively, the hypotenuse of injection bellows 3 towards the roof of cooling air compartment, the going to the bottom of injection bellows 3
Side is outlet air end., the cross sectional shape of this injection bellows 3 is right-angled trapezium, this right angle taking the injection bellows 3 in left side in Fig. 3 as a example
The side wall in the left side towards cooling air compartment for the trapezoidal upper bottom, going to the bottom of this right-angled trapezium is blown wind towards symmetrically arranged another
Case 3, the bottom of straight flange (waist being connected with the right angle of right-angled trapezium) the direction cooling air compartment of this right-angled trapezium, this right-angled trapezium
Hypotenuse is towards the top of cooling air compartment.
Injection bellows 3 adopt isobaris surface to design in height, that is, refer to be blown the outlet pressure of the spout of bellows 3 along short transverse
Power is consistent.Consider between injection bellows 3 simultaneously and be blown the uniformity of bellows 3 back aerofluxuss flowing.Injection bellows 3 are vertical
It is trapezium structure in the longitudinal cross-section of workpiece traffic direction, trapezoidal hypotenuse is selected by simulating calculating contrast with the angle of vertical direction
Select optimum.
Further, the bottom of each injection bellows 3 is provided with least two flat seams nozzle 31 (flat burner), such as
Shown in Fig. 2 and Fig. 3, at least two flat seam nozzles 31 vertically be arranged in parallel, each flat seam nozzle length vertically
Length vertically is adapted degree with the bottom being blown bellows 3.Arrange on each injection bellows 3 in the embodiment of the present invention
There are two flat seam nozzles 31.The outlet of this flat seam nozzle 31 is the flat seam vertically arranging.
It should be noted that the workpiece 6 in the embodiment of the present invention is axletree, the equal root of all design parameters of flat seam nozzle 31
After a large amount of flowings and Heat Transfer Simulation comparing calculation, choose optimal dimension combination, the cooling taking into account all size axletree requires；
The uniformity that cool down of axletree is ensured on circumferencial direction and short transverse, can meet the various quick cooling of different size axletree with
Uniformly cool requirement.
As shown in figure 1, the cooling air compartment in the embodiment of the present invention also includes the first injection plenum chamber 51 and the second injection collection
Gas tank 52.Rapid cooling station is provided with least one first injection plenum chamber 51, multiple injection bellows 3 of rapid cooling station all with corresponding
First injection plenum chamber 51 connect.Slow cooling station be provided with least one second injection plenum chamber 52, slow cooling station multiple
Injection bellows 3 are all connected with the corresponding second injection plenum chamber 52.
In the embodiment of the present invention, be rapid cooling station with the first corresponding position of injection plenum chamber 51 in Fig. 1, in Fig. 1 with
Second injection plenum chamber 52 corresponding for slow cooling station, the air inlet of multiple injection bellows 3 on above-mentioned rapid cooling station and the
The air outlet of one injection plenum chamber 51 is connected, and the air inlet of multiple injection bellows 3 of above-mentioned slow cooling station and second is blown gas collection
The air outlet of case 52 is connected.
It should be noted that the cross dimensions of the first injection plenum chamber 51 and the second injection plenum chamber 52 and corresponding injection
The inlet section of bellows 3 is adapted it is ensured that the uniform flow in each injection bellows 3 is consistent.
Above-mentioned cooling air supply device includes the first frequency conversion fan and the second frequency conversion fan, the first frequency conversion fan and the first injection
Plenum chamber 51 connects, and the second frequency conversion fan is connected with the second injection plenum chamber 52.
Adopt the first frequency conversion fan air feed of the big pressure of big flow in rapid cooling station, ensure that the ejection of injection bellows 3
Cold wind have sufficiently high flow velocity and flow, high temperature axletree quickly can be cooled down.Set respectively in rapid cooling station and slow cooling station
There is single frequency conversion fan, flow velocity and the flow of frequency conversion fan can be adjusted according to different demands, to adapt to different axletrees are entered
Row cooling.
Further, the exit of the exit of rapid cooling station and slow cooling station is provided with temperature survey assembly.First
Frequency conversion fan and the second frequency conversion fan all carry out interlocked control with temperature survey assembly, can be with the cooling speed of precise control axletree
Rate.Realize when producing conventional axletree automatically adjusting the first frequency conversion fan and the rotating speed of the second frequency conversion fan, to realize axletree cold
But speed controls.When producing extraordinary axletree, the cooling curve obtaining can be tested by black box according to program record, from
Dynamic adjustment axletree in some independent station, the cooling speed in the cooling cycle, for example, passes through adjustment cooling air compartment rapid cooling
Rotating speed speed change in a cooling cycle for first frequency conversion fan of section, the early stage to realize axletree quickly cools down, the later stage
The technological requirement of uniform decrease in temperature.
Preferably, multiple temperature survey assemblies can also be provided with the side wall of cooling air compartment, for the reality to axletree
Shi Wendu and cooler environment temperature measure.
As shown in figures 1 and 3, the direction run along workpiece, multiple injection bellows 3 interval settings, in two neighboring injection
Form exhaust passage, cooling air compartment also includes aerofluxuss header 2, and aerofluxuss header 2 is arranged on the top of cooling air compartment between bellows 3,
Exhaust passage is connected with aerofluxuss header 2.
It is provided with enough gaps between adjacent injection bellows 3 as exhaust passage, cool down bottom and the axletree heat exchange of air compartment
Hot blast afterwards directly can flow to the back side of injection bellows 3, then the back side from injection bellows 3 from bottom by exhaust passage level
It is discharged into directly up in aerofluxuss header 2.Thus ensure that axletree contacts in height all the time is to be blown out by flat seam nozzle 31
Cold wind, and then ensure axletree short transverse heat exchange uniformity.
Aerofluxuss header 2 in the embodiment of the present invention is used for collecting each section of hot blast, and aerofluxuss header 2 is in the unified row of outlet setting
Feed channel, in Fig. 1, upper arrow direction is discharge directions, and the lower section direction of arrow is airintake direction.Purpose one side so designing
Face makes the flowing cooling down air compartment more uniform.On the other hand low-temperature zone hot blast and high temperature section hot blast are made in aerofluxuss header 2
Each other after heat exchange cooling, then discharged by exhaust fan, it is to avoid the phenomenon of exhaust fan overtemperature occurs.
Preferably, said exhaust blower fan is the multiple propeller fans being arranged side by side.Pass through in row in the embodiment of the present invention
Unified gateway is arranged on gas header 2, and considers exhaust resistance and injection power to determine the ability of propeller fan.
Meanwhile, the start and stop quantity of propeller fan, according to the rotating speed of frequency conversion fan in cooling air supply device Lai automatic Matching and modification, is passed through
Temperature survey assembly feedback control is blown air quantity, thus realizing the interlocked control cooling down.
The entrance and exit of cooling air compartment is provided with Pneumatic opening ＆ closing formula room 4.Ensure that the air-flow of cooling air compartment is not excessive, carry
Operating environment for a safety.The Pneumatic opening ＆ closing formula room door 4 of the gateway of cooling air compartment and the chain control of suspension conveying system 7
System.The bottom of cooling air compartment is provided with the V-shaped iron scale dreg collecting slot 8 for collecting the iron scale in axletree cooling procedure,
The iron scale in axletree cooling procedure can be collected in process of production.
Operation in cooling air compartment for the axletree in the embodiment of the present invention relies on suspension conveying system 7, this suspension delivery system
System 7 is provided with stopper in the outlet of cooling air compartment.Axletree runs and carries out according to the operation rhythm of technique initialization.The gas of cooling air compartment
Safety interlocking realized by dynamic open and close type room door 4, above-mentioned stopper etc..
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect: according to cooling
The difference of technological requirement arranges different cooling stations, is provided with rapid cooling station in entrance, according to finally cold after rapid cooling station
But the difference of temperature arranges multiple slow cooling stations again, and the cooling technique that can meet various axletrees requires.
The above, only the specific embodiment of the present invention invents, it is impossible to limit with it, the scope implemented, so it is equivalent
The displacement of assembly, or the equivalent variations made according to scope of patent protection of the present invention and modification, all should still fall within what this patent was covered
Category.In addition, between technical characteristic in the present invention and technical characteristic, between technical characteristic and technical scheme, technical scheme with
All can be used with independent assortment between technical scheme.
Claims (10)
1. a kind of suspended type air cooling system is it is characterised in that described suspended type air cooling system includes:
Cooling air supply device；
Cooling air compartment, is connected with described cooling air supply device, and described cooling air compartment includes rapid cooling station and slow cooling station, described fast
Cold station is arranged at the porch of described cooling air compartment, and described slow cooling station is arranged at described rapid cooling station away from described cooling wind
The side of chamber inlet, described slow cooling station is connected with described rapid cooling station；
Exhaust apparatus, is connected with described cooling air compartment.
2. suspended type air cooling system according to claim 1 is it is characterised in that described cooling air compartment includes running with workpiece
Two parallel relative side walls of direction, described rapid cooling station and described slow cooling station are provided with multiple injections bellows (3), many
Individual injection bellows (3) is symmetricly set on two relative described side walls.
3. suspended type air cooling system according to claim 2 is arranged it is characterised in that being blown bellows (3) in vertical direction,
In the longitudinal cross-section perpendicular to described workpiece traffic direction, the cross sectional shape of injection bellows (3) is right-angled trapezium, is blown bellows
(3) upper bottom edge, towards described side wall, is blown the bottom of bellows (3) and the bottom phase of symmetrically arranged injection bellows (3)
Right, towards the described roof cooling down air compartment, the bottom of injection bellows (3) is outlet air end to the hypotenuse of injection bellows (3).
4. suspended type air cooling system according to claim 3 is it is characterised in that the bottom of each injection bellows (3) is equal
It is provided with least two flat seams nozzle (31), at least two flat seams nozzle (31) vertically be arranged in parallel, each flat seam spray
Length vertically is adapted mouth length vertically with the bottom being blown bellows (3).
5. suspended type air cooling system according to claim 2 is it is characterised in that described cooling air compartment also includes the first injection
Plenum chamber (51) and the second injection plenum chamber (52)；
Described rapid cooling station is provided with least one first injection plenum chamber (51), multiple injection bellows of described rapid cooling station
(3) all connect with the corresponding first injection plenum chamber (51)；
Described slow cooling station is provided with least one second injection plenum chamber (52), multiple injection bellows of described slow cooling station
(3) all connect with the corresponding second injection plenum chamber (52).
6. suspended type air cooling system according to claim 5 is it is characterised in that described cooling air supply device includes the first change
Frequency blower fan and the second frequency conversion fan, described first frequency conversion fan is connected with the first injection plenum chamber (51), described second frequency conversion wind
Machine is connected with the second injection plenum chamber (52).
7. suspended type air cooling system according to claim 2 is it is characterised in that described cooling air compartment also includes aerofluxuss header
(2), aerofluxuss header (2) is arranged on the top of described cooling air compartment, the direction run along workpiece, multiple injection bellows (3) intervals
Setting, forms exhaust passage, described exhaust passage is connected with aerofluxuss header (2) between two neighboring injection bellows (3).
8. suspended type air cooling system according to claim 1 is it is characterised in that the entrance and exit of described cooling air compartment is equal
It is provided with Pneumatic opening ＆ closing formula room door (4).
9. suspended type air cooling system according to claim 1 is it is characterised in that the exit of described rapid cooling station and described
The exit of slow cooling station is provided with temperature survey assembly.
10. suspended type air cooling system according to claim 1 is it is characterised in that the bottom of described cooling air compartment is provided with
For collecting V-shaped iron scale dreg collecting slot (8) of the iron scale in axletree cooling procedure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611043220.8A CN106367580A (en) | 2016-11-22 | 2016-11-22 | Suspension type air cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611043220.8A CN106367580A (en) | 2016-11-22 | 2016-11-22 | Suspension type air cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106367580A true CN106367580A (en) | 2017-02-01 |
Family
ID=57892216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611043220.8A Pending CN106367580A (en) | 2016-11-22 | 2016-11-22 | Suspension type air cooling system |
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| Country | Link |
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| CN (1) | CN106367580A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108057963A (en) * | 2017-12-15 | 2018-05-22 | 重庆友拓汽车零部件有限公司 | Neutral column reinforcement plate welds cooling means |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202157105U (en) * | 2011-07-06 | 2012-03-07 | 无锡东和薄板装备制造有限公司 | Five division cooling system of continuous annealing furnace |
| CN104928447A (en) * | 2015-06-02 | 2015-09-23 | 秦皇岛开发区春光铸造机械有限公司 | Suspension type workpiece air cooling device |
| CN206143269U (en) * | 2016-11-22 | 2017-05-03 | 北京京诚凤凰工业炉工程技术有限公司 | Suspension type forced air cooling system |
-
2016
- 2016-11-22 CN CN201611043220.8A patent/CN106367580A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202157105U (en) * | 2011-07-06 | 2012-03-07 | 无锡东和薄板装备制造有限公司 | Five division cooling system of continuous annealing furnace |
| CN104928447A (en) * | 2015-06-02 | 2015-09-23 | 秦皇岛开发区春光铸造机械有限公司 | Suspension type workpiece air cooling device |
| CN206143269U (en) * | 2016-11-22 | 2017-05-03 | 北京京诚凤凰工业炉工程技术有限公司 | Suspension type forced air cooling system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108057963A (en) * | 2017-12-15 | 2018-05-22 | 重庆友拓汽车零部件有限公司 | Neutral column reinforcement plate welds cooling means |
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Application publication date: 20170201 |