CN111590160A - Atmosphere curtain is prevented hanging that aluminium continuous brazing furnace used - Google Patents
Atmosphere curtain is prevented hanging that aluminium continuous brazing furnace used Download PDFInfo
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- CN111590160A CN111590160A CN202010572860.8A CN202010572860A CN111590160A CN 111590160 A CN111590160 A CN 111590160A CN 202010572860 A CN202010572860 A CN 202010572860A CN 111590160 A CN111590160 A CN 111590160A
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- curtain
- atmosphere
- furnace
- chamber
- atmosphere curtain
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
Abstract
The invention discloses an anti-hanging atmosphere curtain for an aluminum continuous brazing furnace, which relates to the field of welding equipment and aims at solving the problem that the failure rate of equipment is high due to the fact that the structural design of an existing gas curtain chamber and an existing atmosphere curtain is lagged behind. The invention has novel structure, small change of the device on the original basis and simple operation, and effectively reduces the interference of the atmosphere curtain on the workpiece, thereby reducing the failure rate.
Description
Technical Field
The invention relates to the field of welding equipment, in particular to an anti-hanging atmosphere curtain for an aluminum continuous brazing furnace.
Background
An aluminium continuous brazing furnace is a heat treatment device for effectively welding each part of an aluminium product, and is used for welding by utilizing the characteristic that the alloy melting point of aluminium brazing filler metal is lower than the melting point of base metal aluminium metal. Simultaneously NOCOLOK aluminium scaling powder breaks away the oxide film of aluminium, let brazing filler metal melting at the base metal surface diffusion, after the cooling, brazing filler metal will form the metallic bond layer with aluminium system product contact surface between, the design of preceding, the back curtain room of current brazing furnace is designed according to the net height that the work piece passes through +50mm, atmosphere curtain is tailor the interval and is 50mm usually, and it is preceding, the export of back curtain room does not all have the inclination design, the easy hook of atmosphere curtain and winding welding spare have been led to, make welding position change and lead to the product to scrap, it also wastes time and energy to need artifical intervention to handle simultaneously, very influence production efficiency.
Disclosure of Invention
The invention provides an anti-hanging atmosphere curtain for an aluminum continuous brazing furnace, which solves the problem of high equipment failure rate caused by the lagging structural design of the existing gas curtain chamber and atmosphere curtain.
In order to achieve the purpose, the invention adopts the following technical scheme:
an anti-hanging atmosphere curtain for an aluminum continuous brazing furnace comprises a front curtain chamber, wherein a rear curtain chamber is installed at one end of the front curtain chamber in a matched mode, the front curtain chamber comprises a first underframe, the rear curtain chamber comprises a second underframe, a furnace door lifter and a furnace shell are installed at the top ends of the first underframe and the second underframe, the furnace door lifter is located at two ends, far away from each other, of the two groups of furnace shells and symmetrically distributed, a heat insulation layer is fixedly sleeved on the outer wall of the furnace shell, cavities are formed in the furnace shell, notches are formed in two sides of the furnace shell and uniformly distributed along the length direction of the furnace shell, the notches penetrate through the side wall of the furnace shell and are communicated with the cavities, maintenance side doors are inlaid in the notches, hand wheels are connected to the outer walls of the two sides of the furnace shell in a threaded mode, the hand wheels are uniformly distributed along a circle of the outline of the maintenance side doors, and atmosphere curtains are uniformly installed on the inner walls of the two groups of the furnace shell along the length, and the atmosphere curtains are all covered on the notches.
Preferably, a pressing plate is installed between the hand wheel and the furnace shell, and one end of the pressing plate extends to one side of the maintenance side door.
Preferably, the insulation can is installed at one end, far away from the rear curtain chamber, of the first chassis, the nitrogen gas storage tank is installed at the top end, located at the furnace shell of the front curtain chamber, of the first chassis, and the nitrogen gas storage tank is communicated with the cavity.
Preferably, the two groups of furnace shells are provided with inclination angles at the outlets of the ends far away from the heat insulation box.
Preferably, the atmosphere curtain is provided with gaps along the height direction, the gaps penetrate through the atmosphere curtain, the gaps are uniformly distributed along the width direction of the atmosphere curtain, and the bottom end of the atmosphere curtain is positioned on two sides of the gaps and provided with arc chamfers.
The invention has the beneficial effects that:
1. the net height of the heightened cavity passing through the workpiece is increased by 50mm and is designed to be +500mm, the deflection of the heightened atmosphere curtain relative to the movement of a product is reduced, the resistance to the workpiece is reduced, and the workpiece can easily pass through the front curtain chamber and the rear curtain chamber.
2. The device adjusts the cutting interval of the atmosphere curtain from 50mm to 200mm, so that the interval number of the workpieces which can be hooked is reduced, and the probability of hooking the workpieces by the atmosphere curtain is reduced.
3. The device carries out inclination processing on the tail parts of the front curtain chamber and the rear curtain chamber, so that the resistance of the atmosphere curtain to the workpiece is reduced in the running direction of the conveying line.
4. The nitrogen gas storage tank sprays nitrogen gas along the inner walls of the front curtain chamber and the rear curtain chamber to reduce the use of the entity atmosphere curtain, and the nitrogen gas curtain is added to replace part of the entity atmosphere curtain, so that the resistance of the entity atmosphere curtain to the workpiece is reduced.
In conclusion, the device is slightly changed on the original basis, is simple to operate, and effectively reduces the interference of the atmosphere curtain on the workpiece, so that the failure rate is reduced.
Drawings
Fig. 1 is a sectional view of a front curtain chamber according to the present invention.
Fig. 2 is a top view of the front curtain compartment of the present invention.
Fig. 3 is a sectional view showing an internal structure of a rear curtain compartment of the present invention.
Fig. 4 is a top view of the rear curtain compartment of the present invention.
FIG. 5 is an enlarged schematic view of the structure of the atmosphere curtain of the present invention.
Reference numbers in the figures: 1. a first chassis; 2. a heat preservation box; 3. a furnace shell; 4. a heat-insulating layer; 5. a furnace door lifter; 6. an atmosphere curtain; 7. a nitrogen gas storage tank; 8. inclination angle; 9. a hand wheel; 10. maintaining the side door; 11. a cavity; 12. chamfering with an arc; 13. a gap; 14. a second chassis.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, an anti-hanging atmosphere curtain for an aluminum continuous brazing furnace comprises a front curtain chamber, a rear curtain chamber is installed at one end of the front curtain chamber in a matching manner, the front curtain chamber comprises a first underframe 1, the rear curtain chamber comprises a second underframe 14, a furnace door lifter 5 and a furnace shell 3 are installed at the top ends of the first underframe 1 and the second underframe 14, the furnace door lifter 5 is located at two mutually far away ends of the two groups of furnace shells 3 and is symmetrically distributed, a heat insulation layer 4 is fixedly sleeved on the outer wall of each furnace shell 3, a cavity 11 is arranged in each furnace shell 3, notches are arranged at two sides of each furnace shell 3, the notches are uniformly distributed along the length direction of the furnace shell 3, penetrate through the side wall of each furnace shell 3 and are communicated with the cavity 11, a maintenance side door 10 is embedded in each notch, hand wheels 9 are in threaded connection with the outer walls at two sides of the two groups of the furnace shells 3, the handwheels 9 are uniformly distributed along the contour of the side door 10, the inner walls of the two furnace shells 3 are uniformly provided with atmosphere curtains 6 along the length direction, the atmosphere curtains 6 are all covered on the notches, pressure plates are all arranged between the hand wheel 9 and the furnace shell 3, one end of the pressing plate extends to one side of the maintenance side door 10, the insulation can 2 is arranged at one end of the first underframe 1 far away from the rear curtain chamber, and the top end of the furnace shell 3 positioned in the front curtain chamber is provided with a nitrogen gas storage tank 7, the nitrogen gas storage tanks 7 are communicated with the cavity 11, the outlets of the two groups of furnace shells 3 positioned at one end far away from the insulation can 2 are both provided with an inclination angle 8, the atmosphere curtain 6 is both provided with a gap 13 along the height direction thereof, and clearance 13 all runs through in atmosphere curtain 6, clearance 13 all is evenly distributed along the width direction of atmosphere curtain 6, just arc chamfer 12 has all been seted up to the bottom of atmosphere curtain 6 and is located clearance 13 both sides.
The working principle is as follows: the brazing equipment is used for preserving heat of a product to be welded through an insulation box, a pressing plate is fastened through a hand wheel 9 to press a maintenance side door 10 in a groove, nitrogen is filled into a front curtain chamber and a rear curtain chamber through a nitrogen storage tank 7, a furnace door is opened through a furnace door lifter 5, a workpiece enters the front curtain chamber, enters a subsequent convection preheating furnace, a brazing section and an atmosphere protection cooling chamber from the front curtain chamber, and is finally sent out from the rear curtain chamber, wherein when the workpiece passes through the front curtain chamber and the rear curtain chamber, the front curtain chamber and the rear curtain chamber need to be sealed through an atmosphere curtain 6 to prevent protective gas nitrogen from leaking, when no workpiece passes through, the atmosphere curtain 6 naturally sags due to gravity, the edges of the atmosphere curtain are mutually sealed, when the workpiece passes through, the atmosphere curtain 6 is naturally picked up by the workpiece, the traditional atmosphere curtain 6 is narrow in width and generally fifty millimeters wide, so that the atmosphere curtain 6 is more slender and is easily wound with the workpiece to, therefore, workpieces are rejected due to unqualified processing, the atmosphere curtain 6 is widened to be two hundred millimeters wide in the scheme, the fault phenomenon is improved, meanwhile, in order to save cost, the hanging height of the atmosphere curtain 6 in the traditional scheme is only about fifty millimeters higher than the passing height of the workpieces, so that the resistance of the workpieces is larger when the workpieces pass through, and the workpieces are easy to run, therefore, the hanging height of the atmosphere curtain 6 is increased by five hundred millimeters when the workpieces pass through, the fault phenomenon is further improved, the bottom end of the atmosphere curtain 6 of the device is provided with an arc chamfer to prevent the workpieces from being clamped, outlets of a front curtain chamber and a rear curtain chamber in the scheme are provided with an inclination angle 8, the running resistance of the atmosphere curtain 6 to the workpieces is further reduced, meanwhile, the solid atmosphere curtain 6 is reduced, nitrogen is sprayed along the side walls of the front curtain chamber and the rear curtain chamber through a nitrogen gas storage tank 7, the nitrogen gas curtain is added to replace part of the solid atmosphere, this also reduces the resistance of the atmosphere curtain 6 to the workpiece.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The atmosphere curtain for preventing the aluminum continuous brazing furnace from being hung comprises a front curtain chamber and is characterized in that one end of the front curtain chamber is provided with a rear curtain chamber in a matching mode, the front curtain chamber comprises a first underframe (1), the rear curtain chamber comprises a second underframe (14), a furnace door lifter (5) and a furnace shell (3) are arranged at the top ends of the first underframe (1) and the second underframe (14), the furnace door lifter (5) is positioned at two mutually far ends of the two groups of furnace shells (3) and is symmetrically distributed, a heat insulation layer (4) is fixedly sleeved on the outer wall of each furnace shell (3), cavities (11) are formed in the furnace shells (3), notches are formed in two sides of the furnace shells (3) and are uniformly distributed along the length direction of the furnace shells (3), the notches penetrate through the side walls of the furnace shells (3) and are communicated with the cavities (11), and maintenance side doors (10) are inlaid in the notches, two sets of the equal threaded connection of both sides outer wall of stove outer covering (3) has hand wheel (9), just hand wheel (9) are evenly distributed, two sets of along the profile a week of maintenance side door (10) the atmosphere curtain (6) is evenly installed along its length direction to the inner wall of stove outer covering (3), just atmosphere curtain (6) all cover in the notch.
2. The atmosphere curtain of claim 1, wherein a pressure plate is arranged between the hand wheel (9) and the furnace shell (3), and one end of the pressure plate extends to one side of the maintenance side door (10).
3. The atmosphere curtain of claim 1, wherein the insulation box (2) is installed at one end of the first underframe (1) far away from the rear curtain chamber, the nitrogen gas storage tank (7) is installed at the top end of the furnace shell (3) positioned in the front curtain chamber, and the nitrogen gas storage tank (7) is communicated with the cavity (11).
4. The atmosphere curtain of claim 3, wherein the two groups of furnace shells (3) are provided with an inclination angle (8) at the outlet at the end far away from the heat insulation box (2).
5. The atmosphere curtain for preventing the aluminum continuous brazing furnace from being hung is characterized in that gaps (13) are formed in the atmosphere curtain (6) along the height direction of the atmosphere curtain (6), the gaps (13) penetrate through the atmosphere curtain (6), the gaps (13) are uniformly distributed along the width direction of the atmosphere curtain (6), and arc chamfers (12) are formed in the positions, located on the two sides of the gaps (13), of the bottom end of the atmosphere curtain (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010572860.8A CN111590160A (en) | 2020-06-22 | 2020-06-22 | Atmosphere curtain is prevented hanging that aluminium continuous brazing furnace used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010572860.8A CN111590160A (en) | 2020-06-22 | 2020-06-22 | Atmosphere curtain is prevented hanging that aluminium continuous brazing furnace used |
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| Publication Number | Publication Date |
|---|---|
| CN111590160A true CN111590160A (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010572860.8A Pending CN111590160A (en) | 2020-06-22 | 2020-06-22 | Atmosphere curtain is prevented hanging that aluminium continuous brazing furnace used |
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| CN (1) | CN111590160A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113084285A (en) * | 2021-04-25 | 2021-07-09 | 郑州机械研究所有限公司 | Spectacle frame brazing equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195673A (en) * | 1991-09-25 | 1993-03-23 | General Motors Corporation | Method and apparatus for convection brazing of aluminum heat exchangers |
| US5271545A (en) * | 1993-03-31 | 1993-12-21 | Seco/Warwick Corporation | Muffle convection brazing/annealing system |
| CN204584505U (en) * | 2015-03-16 | 2015-08-26 | 浙江明鑫工业炉有限公司 | A kind of preheating chamber of soldering oven |
| CN204584504U (en) * | 2015-03-16 | 2015-08-26 | 浙江明鑫工业炉有限公司 | A kind of atmosphere curtain room of soldering oven |
| CN104858520A (en) * | 2015-05-25 | 2015-08-26 | 浙江创新汽车空调有限公司 | Nitrogen protective continuous type brazing furnace |
| CN205290015U (en) * | 2016-01-25 | 2016-06-08 | 揭阳市美度实业有限公司 | Atmosphere protection curtain device with adjustable be used for automatic brazing |
| CN208532862U (en) * | 2018-06-04 | 2019-02-22 | 天津阿瑞斯工业炉有限公司 | A kind of protective atmosphere roller bottom furnace goes up and down curtain device |
-
2020
- 2020-06-22 CN CN202010572860.8A patent/CN111590160A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195673A (en) * | 1991-09-25 | 1993-03-23 | General Motors Corporation | Method and apparatus for convection brazing of aluminum heat exchangers |
| US5271545A (en) * | 1993-03-31 | 1993-12-21 | Seco/Warwick Corporation | Muffle convection brazing/annealing system |
| CN204584505U (en) * | 2015-03-16 | 2015-08-26 | 浙江明鑫工业炉有限公司 | A kind of preheating chamber of soldering oven |
| CN204584504U (en) * | 2015-03-16 | 2015-08-26 | 浙江明鑫工业炉有限公司 | A kind of atmosphere curtain room of soldering oven |
| CN104858520A (en) * | 2015-05-25 | 2015-08-26 | 浙江创新汽车空调有限公司 | Nitrogen protective continuous type brazing furnace |
| CN205290015U (en) * | 2016-01-25 | 2016-06-08 | 揭阳市美度实业有限公司 | Atmosphere protection curtain device with adjustable be used for automatic brazing |
| CN208532862U (en) * | 2018-06-04 | 2019-02-22 | 天津阿瑞斯工业炉有限公司 | A kind of protective atmosphere roller bottom furnace goes up and down curtain device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113084285A (en) * | 2021-04-25 | 2021-07-09 | 郑州机械研究所有限公司 | Spectacle frame brazing equipment |
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Application publication date: 20200828 |
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