CN104017960B - A kind of many part spray quenching devices - Google Patents
A kind of many part spray quenching devices Download PDFInfo
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- CN104017960B CN104017960B CN201410189627.6A CN201410189627A CN104017960B CN 104017960 B CN104017960 B CN 104017960B CN 201410189627 A CN201410189627 A CN 201410189627A CN 104017960 B CN104017960 B CN 104017960B
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Abstract
The present invention relates to a kind of many part spray quenching devices, comprise fog system, support system and rotation system; Fog system comprises left spray plate and right spray plate; Left spray plate and right spray plate symmetrical, support system is for supporting and hang the strip type part needing to carry out fog quenching, and support system comprises central shaft; The forward and backward two ends of central shaft are equipped with support, and rotation system comprises roll adjustment cylinder; The cylinder axis of roll adjustment cylinder is connected with substrate; The left side of substrate is provided with motor, and the right side of substrate is provided with bearing support bracing frame; Bearing support bracing frame upper end is provided with roller bearing; The left end of roller bearing is fixed with sprocket wheel, and the right-hand member of roller bearing is fixed with half-connection frame.Cambered plate of the present invention is conducive to increasing the wrapping angle needing quench part, realize to part fog quenching fully with evenly; Rotation and the stopping of support system can be controlled by rotation system flexibly, thus control the position being positioned at each part of support system flexibly.
Description
Technical field
The present invention relates to quenching heat treatment equipment technical field, specifically a kind of many part spray quenching devices.
Background technology
At present, conventional quenchant mainly contains water, gas and oil.In single medium quenching, water cooling ability is maximum, is applicable to thick-walled parts, but easily causes distortion and the cracking of part, and water temperature is also very large on the impact of cooling characteristic simultaneously, is difficult to control; Gas quenching cooling is too slow, can only be applied to the material that hardening capacity is good; Have a large amount of smog to produce during oil quenching, contaminate environment, be unfavorable for energy-saving and cost-reducing and reduce production cost, and quenching oil is only used in that hardening capacity is good, workpiece is little, complex-shaped, the workpiece that requires quenching strain little.
Along with developing rapidly of the industry such as iron and steel, electric power, shipbuilding, conventional quench cooled mode, can not meet the maximization, greatly weight, the high-quality requirement that propose forged steel pieces.Heavy forging, for obtaining high yield strength and the low crisp premium propertiess such as temperature that turn, adopts fog quenching to be effective method.
Application number be ZL201120017153.9 patent discloses a kind of Multidirectional spray quenching device, its technical scheme is: it is made up of base, column, movable transverse arm, column is arranged on base, movable transverse arm has three, sequentially be arranged on column under upper respectively, movable transverse arm and column are the connection that can move up and down and rotate, often prop up on movable transverse arm and some distributive pipes are all housed, each distributive pipe one termination divides water bag, the other end mounting spray head, distributive pipe has the device regulating shower nozzle extrusion and turning direction.Described device carries out spray cooling in three faces simultaneously, has avoided the corner parts that speed of cooling is fast simultaneously, to avoid the situation occurring that edge hardness is higher.Said apparatus can not play the effect of even spraying for the fog quenching of strip type part, heavy parts, and quenching efficiency is limited.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of many part spray quenching devices.
The present invention solves its technical problem and realizes by the following technical solutions:
A kind of many part spray quenching devices, comprise fog system, support system and rotation system; Described fog system comprises left spray plate and right spray plate, and left spray plate and right spray plate are sprayed jointly from the both sides of part, to improve the homogeneity of spraying; Described left spray plate and right spray plate symmetrical, left spray plate comprise to part parcel property strong, each region with part apart from identical cambered plate; Described cambered plate is evenly equipped with circular hole; Shower nozzle and fan is provided with in described circular hole; The outer side of described cambered plate is furnished with water pipe; Described water pipe is all communicated with each shower nozzle, and for each shower nozzle provides water and pressure, the size simultaneously by controlling water pipe internal pressure can control the speed of spraying; The speed of spraying can be controlled by the size controlling fan power.When shower nozzle and combination of fans use, fog system can be used as strengthening fog quenching equipment; When only using shower nozzle to spray, fog system can be used as general fog quenching equipment; When only using fan, fog system can be used as air blast quenching equipment use.The top at the forward and backward two ends of outer side of described cambered plate is all established and is connected with upper connecting rod by hinged mode; The middle and upper part of described upper connecting rod is connected with lower link by hinged mode; The lower end of described lower link is all connected to cambered plate bottom by hinged mode, and the trilateral rock steady structure of lower link, upper connecting rod and cambered plate composition plays fixed support effect to cambered plate; The middle and lower part of described upper connecting rod is connected with rocking bar by hinged mode; The lower end of described rocking bar is all connected to slide block by hinged mode chain; The lower end of described upper connecting rod is fixed by hinged mode; Be arranged with slideway outside described slide block, one end of slide block is connected with cylinder; Described cylinder promotes slide block and moves on slideway, and slide block promotes upper link rotatable by rocking bar, thus cambered plate is moved forward or retreats, the distance between adjustment cambered plate and part, thus plays the effect of adjustment fog quenching effect.
Described support system is for supporting and hang the part needing to carry out fog quenching, especially strip type part, and support system comprises central shaft; The forward and backward two ends of described central shaft are equipped with support, between central shaft and support, all cover has bearing, central shaft also overlaps the multijaw plate rail having two to be oppositely arranged, for fixing by the end of quench part, the aft end face of central shaft is provided with the rear bumping post preventing central shaft play, and the front end face of central shaft is provided with the front bumping post preventing central shaft play; The front end face of described front bumping post is provided with a friction plate; The surrounding of described multijaw plate rail is evenly fixed with arm post; The outer end of described arm post is all connected with the deck for preventing strip type part by hinged mode; Described deck is provided with for renovating of compressing part from part top.
Described rotation system comprises roll adjustment cylinder, the cylinder axis of described roll adjustment cylinder is connected with substrate, be provided with the track being convenient to substrate movement below described substrate, the left side of substrate is provided with motor, and the right side of substrate is provided with bearing support bracing frame, described bearing support bracing frame upper end is provided with roller bearing, the left end of described roller bearing is fixed with sprocket wheel, and the right-hand member of roller bearing is fixed with half-connection frame, described motor drives roller bearing to rotate on bearing support bracing frame by chaindriven mode, and roller bearing drives half-connection frame to rotate simultaneously, the right side of described half-connection frame is connected with splined shaft by the mode of spline joint, the part that the left end of described splined shaft is positioned at half-connection frame inside is provided with the double nut preventing splined shaft from scurrying out to the right, the part cover that splined shaft is positioned on the right side of half-connection frame has spring, the right-hand member of splined shaft is fixed with No. two friction plates coordinated with a friction plate, when roll adjustment cylinder promotion substrate moves right, a friction plate connects with No. two friction plates gradually, No. two friction plates compress by a friction plate simultaneously, to make to produce frictional force between the two, No. two friction plates rotated drive a static friction plate to rotate, thus make central shaft, multijaw plate rail and the parts turn being positioned at multijaw plate rail end, fully realize the homogeneity of fog quenching.
Described water pipe is high-pressure water pipe, to ensure that water pipe can bear the siphon pressure increased for improving spray rate.
Described shower nozzle is positioned at the inner side of the flabellum of fan, in order to avoid flabellum blocks shower nozzle.
Described multijaw plate rail is at least provided with 2 arm posts, because the arm post on multijaw plate rail need be uniformly distributed, so that multijaw plate rail uniform force, does not make multijaw plate rail occur eccentric phenomena, so multijaw plate rail must use plural equally distributed arm post.
The upper end of described deck is provided with arch groove, to adapt to part end profiles, deck bottom surface side is provided with raised line; Described side of renovating is connected with curved button by hinged mode, in use, covers and renovates, curved button and sagging, is buckled on raised line by the lower end of curved button, plays the effect of locking and renovating.
The lower surface arranged on left and right sides of described substrate is respectively provided with a sliding foot; The upper end of described track arranged on left and right sides is all provided with chute corresponding to sliding foot.
Described sliding foot is in inverted T shape; The chute of described substrate upper end is also inverted T shape, and the lower surface area of the sliding foot of inverted T shape is comparatively large, is convenient to sliding foot and combines closely with the chute of inverted T shape.
Pad is separated with between described spring and half-connection frame, so that spring when following splined shaft and rotating directly and half-connection frame produce and rub, for ensureing the connection safety of a friction plate and No. two friction plates, the stroke of spring is less than the distance that splined shaft can slide in half-connection frame, prevent from extremely prescribing a time limit when spring is uncompressed, the inner side-wall of double nut and half-connection frame produces and rubs.
The invention has the beneficial effects as follows: cambered plate of the present invention is conducive to increasing the wrapping angle needing quench part, realize to part fog quenching fully with evenly; On central shaft, multijaw plate rail can place multiple part simultaneously, can significantly improve the efficiency of fog quenching; Rotation and the stopping of support system can be controlled by rotation system flexibly, thus control the position being positioned at each part of support system flexibly, accept spraying or air-cooled adequacy to improve part, improve the quality of fog quenching or air blast quenching; Fan and shower nozzle provide the method that can convert at any time with the use of for fog quenching and air blast quenching, improve the utilization ratio of equipment, improve part to a certain extent, especially the quenching effect of strip type part.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is front view of the present invention;
Fig. 3 is left view of the present invention;
Fig. 4 is vertical view of the present invention;
Fig. 5 is the one-piece construction schematic diagram of fog system of the present invention;
Fig. 6 is the front view of fog system of the present invention;
Fig. 7 is the right view of fog system of the present invention;
Fig. 8 is the vertical view of fog system of the present invention;
Fig. 9 is the one-piece construction schematic diagram of support system of the present invention;
Figure 10 is the front view of support system of the present invention;
Figure 11 is the left view of support system of the present invention;
Figure 12 is the vertical view of support system of the present invention;
Figure 13 is the three-dimensional view of the deck of support system of the present invention;
Figure 14 is the three-dimensional view renovated of support system of the present invention;
Figure 15 is the three-dimensional view renovating set curved button of the present invention;
Figure 16 is the arrangement structural representation of rotation system of the present invention;
Figure 17 is the front view of rotation system of the present invention;
Figure 18 is the left view of rotation system of the present invention;
Figure 19 is the vertical view of rotation system of the present invention;
Figure 20 is the present invention's No. two friction plates and the stereographic map setting up part thereof.
Embodiment
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
As shown in Figures 1 to 4, a kind of many part spray quenching devices, comprise fog system 3, support system 2 and rotation system 1, and described fog system 3 comprises left spray plate 3a and right spray plate 3b.
As shown in Fig. 5 to Fig. 8, described left spray plate 3a and right spray plate 3b sprays jointly from the both sides of part, to improve the homogeneity of spraying; Described left spray plate 3a and right spray plate 3b is symmetrical, left spray plate 3a comprise to part parcel property strong, each region with part apart from identical cambered plate 307; Described cambered plate 307 is evenly equipped with circular hole 301; Shower nozzle 308 and fan 309 is provided with in described circular hole 301; The outer side of described cambered plate 307 is furnished with water pipe 303; Described water pipe 303 is all communicated with each shower nozzle 308, and for each shower nozzle 308 provides water and pressure, the size simultaneously by controlling water pipe 303 internal pressure can control the speed of spraying; The speed of spraying can be controlled by the size controlling fan 309 power.When shower nozzle 308 and fan 309 combinationally use, fog system 3 can be used as strengthening fog quenching equipment; When only using shower nozzle 308 to spray, fog system 3 can be used as general fog quenching equipment; When only using fan 309, fog system 3 can be used as air blast quenching equipment use.The top at the forward and backward two ends of outer side of described cambered plate 307 is all established and is connected with upper connecting rod 304 by hinged mode; The middle and upper part of described upper connecting rod 304 is connected with lower link 306 by hinged mode; The lower end of described lower link 306 is all connected to cambered plate 307 bottom by hinged mode, and the trilateral rock steady structure of lower link 306, upper connecting rod 304 and cambered plate 307 composition plays fixed support effect to cambered plate 307; The middle and lower part of described upper connecting rod 304 is connected with rocking bar 305 by hinged mode; The lower end of described rocking bar 305 is all connected to slide block 302 by hinged mode chain; The lower end of described upper connecting rod 304 is fixed by hinged mode; Be arranged with slideway 5 outside described slide block 302, one end of slide block 302 is connected with cylinder 310; Described cylinder 310 promotes slide block 302 and moves on slideway 5, slide block 302 promotes upper connecting rod 304 by rocking bar 305 and rotates, thus make cambered plate 307 move forward or retreat, the distance between adjustment cambered plate 307 and part, thus the effect playing adjustment fog quenching effect.
As shown in Fig. 9 to Figure 15, described support system 2 is for supporting and hang the part needing to carry out fog quenching, especially strip type part, and support system 2 comprises central shaft 201; The forward and backward two ends of described central shaft 201 are equipped with support 202, all overlap between central shaft 201 and support 202 and have bearing, central shaft 201 also overlaps the multijaw plate rail 203 having two to be oppositely arranged, for fixing by the end of quench part, the aft end face of central shaft 201 is provided with the rear bumping post 201a preventing central shaft 201 play, and the front end face of central shaft 201 is provided with the front bumping post 201b preventing central shaft 201 play; The front end face of described front bumping post 201b is provided with a friction plate 201c; The surrounding of described multijaw plate rail 203 is evenly fixed with arm post 207; The outer end of described arm post 207 is all connected with the deck 204 for preventing strip type part by hinged mode; Described deck 204 is provided with renovates 205 for what compress from part top part.
As shown in Figure 16 to Figure 20, described rotation system 1 comprises roll adjustment cylinder 101, the cylinder axis of described roll adjustment cylinder 101 is connected with substrate 102, be provided with the track 4 being convenient to substrate 102 movement below described substrate 102, the left side of substrate 102 is provided with motor 103, and the right side of substrate 102 is provided with bearing support bracing frame 113, described bearing support bracing frame 113 upper end is provided with roller bearing 107, the left end of described roller bearing 107 is fixed with sprocket wheel 105, and the right-hand member of roller bearing 107 is fixed with half-connection frame 108, described motor 103 drives roller bearing 107 to rotate on bearing support bracing frame 113 by chaindriven mode, and roller bearing 107 drives half-connection frame 108 to rotate simultaneously, the right side of described half-connection frame 108 is connected with splined shaft 11003 by the mode of spline joint, the part that the left end of described splined shaft 11003 is positioned at half-connection frame 108 inside is provided with the double nut 111 preventing splined shaft 11003 from scurrying out to the right, the part cover that splined shaft 11003 is positioned on the right side of half-connection frame 108 has spring 11004, the right-hand member of splined shaft 11003 is fixed with No. two friction plates 110 coordinated with a friction plate 201c, when roll adjustment cylinder 101 promote substrate 102 move right time, a friction plate 201c connects with No. two friction plates 110 gradually, No. two friction plates 110 compress by a friction plate 201c simultaneously, to make to produce frictional force between the two, No. two friction plates 110 rotated drive a static friction plate 201c to rotate, thus make central shaft 201, multijaw plate rail 203 and the parts turn being positioned at multijaw plate rail 203 end, fully realize the homogeneity of fog quenching.
Described water pipe 303 is high-pressure water pipe, to ensure that water pipe 303 can bear water pipe 303 pressure increased for improving spray rate.
Described shower nozzle 308 is positioned at the inner side of the flabellum of fan 309, in order to avoid flabellum blocks shower nozzle 308.
Described multijaw plate rail 203 is at least provided with 2 arm posts 207, because the arm post 207 on multijaw plate rail 203 need be uniformly distributed, so that multijaw plate rail 203 uniform force, multijaw plate rail 203 is not made to occur eccentric phenomena, so multijaw plate rail 203 must use plural equally distributed arm post 207.
The upper end of described deck 204 is provided with arch groove 20401, to adapt to part end profiles, deck 204 bottom surface side is provided with raised line 204a; Described side of renovating 205 is connected with curved button 206 by hinged mode, and in use, cover and renovate 205, curved button 206 is that is sagging, is buckled on raised line 204a the lower end of curved button 206, plays the effect that locking renovates 205.
The lower surface arranged on left and right sides of described substrate 102 is respectively provided with a sliding sufficient 102a; The upper end of described track 4 arranged on left and right sides is all provided with chute 102b corresponding to sliding sufficient 102a.
The sufficient 102a of described cunning is inverted T shape; The chute 102b of described substrate 102 upper end is also inverted T shape, and the lower surface area of the sliding sufficient 102a of inverted T shape is comparatively large, and the chute 102b being convenient to sliding sufficient 102a and inverted T shape combines closely.
Pad 109 is separated with between described spring 11004 and half-connection frame 108, so that spring 11004 when following splined shaft 11003 and rotating directly and half-connection frame 108 produce and rub, for ensureing the connection safety of friction plate 201c and No. two friction plate 110, the stroke of spring 11004 is less than the distance that splined shaft 11003 can slide in half-connection frame 108, prevent from extremely prescribing a time limit when spring 11004 is uncompressed, double nut 111 produces with the inner side-wall of half-connection frame 108 and rubs.
In use, the two ends correspondence of the strip type part needing quenching is placed on deck, upset is renovated accordingly and is covered the end of strip type part, then by curved buckle on raised line, by controlling roll adjustment cylinder, substrate is promoted to the right afterwards, No. two friction plates are contacted gradually with a friction plate, motor slowly drives a friction plate to rotate by No. two friction plates, thus the strip type part be positioned on deck is slowly rotated, simultaneously, according to the demand of fog quenching or air blast quenching select shower nozzle and fan with the use of mode, realize strengthening fog quenching, the conversion of the different mode of fog quenching or air blast quenching.
When needs increase spray amount, stretching by control cylinder, drives rocking bar that cambered plate is close to part, can improve the pressure of water pipe simultaneously, increase the flow velocity of water.
When needing the degree of scatter improving spraying, by adjustment cylinder, increasing the distance between cambered plate, improving the rotating speed of fan simultaneously.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (8)
1. the spray quenching device of part more than, is characterized in that: comprise fog system, support system and rotation system; Described fog system comprises left spray plate and right spray plate; Described left spray plate and right spray plate symmetrical, left spray plate comprises cambered plate; Described cambered plate is evenly equipped with circular hole; Shower nozzle and fan is provided with in described circular hole; The outer side of described cambered plate is furnished with water pipe; Described water pipe is all communicated with each shower nozzle; The top at the forward and backward two ends of outer side of described cambered plate is all established and is connected with upper connecting rod by hinged mode; The middle and upper part of described upper connecting rod is connected with lower link by hinged mode; The lower end of described lower link is all connected to cambered plate bottom by hinged mode; The middle and lower part of described upper connecting rod is connected with rocking bar by hinged mode; The lower end of described rocking bar is all connected to slide block by hinged mode chain; The lower end of described upper connecting rod is fixed by hinged mode; Be arranged with slideway outside described slide block, one end of slide block is connected with cylinder;
Described support system comprises central shaft; The forward and backward two ends of described central shaft are equipped with support, and between central shaft and support, all cover has bearing, and central shaft also overlaps the multijaw plate rail having two to be oppositely arranged, the aft end face of central shaft is provided with rear bumping post, and the front end face of central shaft is provided with front bumping post; The front end face of described front bumping post is provided with a friction plate; The surrounding of described multijaw plate rail is evenly fixed with arm post; The outer end of described arm post is all connected with deck by hinged mode; Described deck is provided with to be renovated;
Described rotation system comprises roll adjustment cylinder; The cylinder axis of described roll adjustment cylinder is connected with substrate; Be provided with track below described substrate, the left side of substrate is provided with motor, and the right side of substrate is provided with bearing support bracing frame; Described bearing support bracing frame upper end is provided with roller bearing; The left end of described roller bearing is fixed with sprocket wheel, and the right-hand member of roller bearing is fixed with half-connection frame; Described motor drives roller bearing to rotate on bearing support bracing frame by chaindriven mode; The right side of described half-connection frame is connected with splined shaft by the mode of spline joint; The part that the left end of described splined shaft is positioned at half-connection frame inside is provided with double nut, and the part cover that splined shaft is positioned on the right side of half-connection frame has spring, and the right-hand member of splined shaft is fixed with No. two friction plates.
2. the many part spray quenching devices of one according to claim 1, is characterized in that: described water pipe is high-pressure water pipe.
3. the many part spray quenching devices of one according to claim 1, is characterized in that: described shower nozzle is positioned at the inner side of the flabellum of fan.
4. the many part spray quenching devices of one according to claim 1, is characterized in that: described multijaw plate rail is at least provided with 2 arm posts.
5. the many part spray quenching devices of one according to claim 1, is characterized in that: the upper end of described deck is provided with arch groove, and deck bottom surface side is provided with raised line; Described side of renovating is connected with curved button by hinged mode.
6. the many part spray quenching devices of one according to claim 1, is characterized in that: the lower surface arranged on left and right sides of described substrate is respectively provided with a sliding foot; The upper end of described track arranged on left and right sides is all provided with chute corresponding to sliding foot.
7. the many part spray quenching devices of one according to claim 6, is characterized in that: described sliding foot is in inverted T shape; The chute of described substrate upper end is also inverted T shape.
8. the many part spray quenching devices of one according to claim 1, is characterized in that: be separated with pad between described spring and half-connection frame, and the stroke of spring is less than the distance that splined shaft can slide in half-connection frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410189627.6A CN104017960B (en) | 2014-05-06 | 2014-05-06 | A kind of many part spray quenching devices |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410189627.6A CN104017960B (en) | 2014-05-06 | 2014-05-06 | A kind of many part spray quenching devices |
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| CN104017960A CN104017960A (en) | 2014-09-03 |
| CN104017960B true CN104017960B (en) | 2016-04-13 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018688A (en) * | 2015-07-04 | 2015-11-04 | 安徽旭鸿热处理有限公司 | Air cooling device for cooling quenched aluminum alloy parts |
| CN105081194B (en) * | 2015-09-22 | 2017-03-08 | 洛阳圣久锻件有限公司 | A kind of cooling sprayer of annular element |
| CN109055693A (en) * | 2018-07-12 | 2018-12-21 | 广州华德汽车弹簧有限公司 | A kind of hollow stabilizing rod heating blowning installation and hollow stabilizing rod heated constant temperature method |
| CN110578040B (en) * | 2019-10-16 | 2020-12-01 | 安徽省辉煌机械制造有限公司 | Spray quenching equipment for casting parts |
| CN114941069B (en) * | 2022-05-24 | 2024-01-19 | 东莞广之源电子科技有限公司 | Automatic change piston rod quenching equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075654U (en) * | 1990-09-13 | 1991-04-24 | 瓦房店轴承厂 | Steam fog quenching device |
| CA2290690A1 (en) * | 1998-03-19 | 1999-09-23 | Seco/Warwick Corporation | Rotatable joint for a liquid quenching drum |
| CN203866363U (en) * | 2014-05-06 | 2014-10-08 | 安徽旭鸿热处理有限公司 | Spray quenching device for multiple parts |
-
2014
- 2014-05-06 CN CN201410189627.6A patent/CN104017960B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075654U (en) * | 1990-09-13 | 1991-04-24 | 瓦房店轴承厂 | Steam fog quenching device |
| CA2290690A1 (en) * | 1998-03-19 | 1999-09-23 | Seco/Warwick Corporation | Rotatable joint for a liquid quenching drum |
| CN203866363U (en) * | 2014-05-06 | 2014-10-08 | 安徽旭鸿热处理有限公司 | Spray quenching device for multiple parts |
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| CN104017960A (en) | 2014-09-03 |
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Effective date of registration: 20180214 Address after: 317605 Taizhou City, Zhejiang Province, Yuhuan City, barley Lantau Street Patentee after: Zhejiang Tuo Shan Machinery Co., Ltd. Address before: 241000 Anhui province Wuhu Tanggou Town, Jiujiang district administrative villages stairs Patentee before: Anhui Xu Hong thermal treatment company limited |
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