CN102837095A - Brazing furnace - Google Patents
Brazing furnace Download PDFInfo
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- CN102837095A CN102837095A CN2012103470724A CN201210347072A CN102837095A CN 102837095 A CN102837095 A CN 102837095A CN 2012103470724 A CN2012103470724 A CN 2012103470724A CN 201210347072 A CN201210347072 A CN 201210347072A CN 102837095 A CN102837095 A CN 102837095A
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Abstract
The invention provides a brazing furnace which comprises a protective gas input pipe, a heating element, a hearth, a carrying device, a furnace wall and a half-muffle cover, wherein the hearth is formed by a tunnel-type longitudinal chamber formed in a surrounding manner by the furnace wall; the protective gas input pipe is used for inputting protective gas into the hearth; the heating element is used for heating a workpiece in the hearth; the half-muffle cover is fixedly arranged in the hearth to separate the hearth into a lower chamber and an upper chamber; the lower chamber is used as a workpiece brazing region; and the carrying device is arranged on the bottom wall of the lower chamber and can be used for driving a welded workpiece to move in the longitudinal direction of the hearth. By the brazing furnace, the problem of continuously brazing heavy and big complex structural components in batches is solved, the carrying device is guaranteed to effectively bear the weight of the large workpiece, the carrying device is also guaranteed to be used for a long time, and the production and maintenance costs are reduced.
Description
Technical field
The present invention relates to engineering machinery field, in particular to a kind of soldering oven.
Background technology
Vacuum brazing is mainly adopted in the complex structural member high temperature brazing of large tracts of land, heavy industry spare at present, but the vacuum brazing cost is high, and efficient is low; And continous way atmosphere protection guipure soldering oven; Need to adopt guipure running continuously on Muffle pot, because Muffle pot and guipure all adopt the 310S stainless steel to make, at high temperature bearing capacity is very poor; Only can satisfy the batch brazing of small workpiece, not be suitable for large-area heavy industry spare soldering.And be applicable to this continous way atmosphere protection guipure soldering oven of small workpiece, and because thermal deformation is big, also needing annual Muffle pot and the stainless steel guipure changed, each replacement cost is more than 100,000 yuan, the maintenance cost height.
Therefore need a kind of can the reduction of exploitation to produce and maintenance cost in a hurry, can satisfy the equipment of large-area heavy industry spare continuous braze welding again.
Summary of the invention
In order to solve the problems of the technologies described above; One object of the present invention is; A kind of soldering oven is provided, can solves the production demand of heavy and big complex structural member soldering continuously in enormous quantities, guarantee the weight that bogey can effectively carry big workpiece; Guarantee that simultaneously bogey uses for a long time, reduce production costs.
In view of this; The invention provides a kind of soldering oven, comprise protective gas input pipe, heating element heater, burner hearth, bogey and furnace wall, the tunnel type vertical cavity that said furnace wall surrounds constitutes said burner hearth; Said protective gas input pipe input protection gas in said burner hearth; Said heating element heater heats the workpiece that is positioned at said burner hearth, also comprises half inner cover, and said half inner cover is fixedly mounted in the said burner hearth; Said burner hearth is separated into lower chambers and upper chamber, and said lower chambers is the workpiece brazing area; Said bogey is installed on the diapire of said lower chambers, can drive welded part vertically moving along said burner hearth.
Adopt lower chambers that half inner cover structure surrounds brazing area,, accomplish welding workpiece through the support of bogey as workpiece; Wherein, protective gas feeds in the burner hearth, through heating element heater gas in the burner hearth and workpiece is heated, and guarantees the temperature constant in the burner hearth, satisfies welding requirements; Bogey drives workpiece and vertically moves along burner hearth, and workpiece is realized continuous welding.Wherein: protective gas plays protection and reduction, prevents the welded part oxidation.
In technique scheme, preferably, the cross section rectangular vertical cavity of said burner hearth for being surrounded by base plate, left plate, right plate and top board, said base plate, left plate, right plate and top board adopt pottery to process.
Bogey adopts pottery to make and drive workpiece and moves in bottom chamber; Can satisfy the continuous requirements of large-scale production of heavy and big complex structural member; Can effectively carry the weight of big workpiece, guarantee that again bogey uses for a long time, reduce simultaneously and produce and maintenance cost.
In technique scheme, preferably, said bogey comprises chute board and push pedal, and said push pedal longitudinally slidably is installed on the upper surface of said chute board, and said chute board is fixedly mounted on the said base plate, and said push pedal adopts pottery to process.
Push pedal is slided on chute board, can guarantee that workpiece welding carries out continuously, realizes producing in enormous quantities.Push pedal simultaneously is installed on the chute board, and chute board is fixedly mounted on the base plate, and big to each other contact area has guaranteed the enabling capabilities of push pedal and chute board; In addition, the push pedal bearing capacity that pottery is processed is strong, can satisfy the continuous welding of heavy and big workpiece.
In technique scheme, preferably, the upper surface of said chute board is provided with longitudinal fluting, and said push pedal is installed in the said groove, can be along said groove longitudinal sliding motion.
Groove assurance push pedal is set slides, the workpiece motion s track is limited along groove.
In technique scheme, preferably, the internal face of said half inner cover is provided with reinforcement, and the outside wall surface of said half inner cover is provided with location-plate, and said location-plate is located with base plate, left plate and the right plate of said burner hearth mutually.
Reinforcement is set, has strengthened the intensity of half inner cover, improved the service life of half inner cover.Location-plate is set, half inner cover is installed firmly.
In technique scheme, preferably, inner face also is provided with furnace lining in said furnace wall.
Furnace lining can be incubated temperature in the soldering oven effectively, prevents that internal heat runs off, and temperature stabilization and welding job are carried out smoothly in the assurance stove; Simultaneously, improve energy utilization rate, reduce cost.
In technique scheme, preferably, have the hole that said heating element heater is installed in the left and right sides of said furnace wall.
Heating element heater is installed in the side, guarantees that the internal temperature of burner hearth is constant, and welding is carried out smoothly.
In technique scheme, preferably, be equipped with sealed heavy seal coat at the left and right sides and the top of said furnace wall.
Heavy seal coat is set, prevents the diffusion of tapping temperature, cause temperature instability in the stove, influence the welding quality of workpiece in the stove.
In technique scheme, preferably, said furnace lining and said sealed heavy seal coat all adopt flame-proof thermal insulation material to process.
Adopt flame-proof thermal insulation material, for example asbestos board because of having the effect of insulation, can prevent that temperature guarantees the workpiece welding temperature rapidly to external world's diffusion in the stove, improve rate of energy, and cost is low.
In technique scheme, preferably, said protective gas comprises nitrogen and ammonia, and said ammonia feeds said bottom chamber, and said nitrogen feeds in the said upper chamber.
The present invention adopts totally enclosed furnace wall, half horse, and not chamber structure, the employing ammonia of structure, refractory ceramics composition advance with nitrogen to protect, adopt push pedal as carrying tool; Provide dew point in the furnace atmosphere below-40 ℃ effectively; Guaranteed that metal oxide is effectively reduced, and satisfies the needs of the continuous braze welding of heavy and big complex structural member in brazing process.
In sum, soldering oven provided by the invention can satisfy the continuous production in enormous quantities of heavy and big complex structural member, and simultaneously, bogey can effectively carry the weight of big workpiece, and guarantees that bogey uses for a long time, reduces and produces and maintenance cost.
Description of drawings
Fig. 1 is the sectional structure sketch map of soldering oven according to an embodiment of the invention.
Wherein, the corresponding relation between Reference numeral and the component names is among Fig. 1:
1 furnace lining, 2 furnace walls, 3 half inner covers, 4 base plates, 5 left plates, 6 right plates, 61 reinforcements, 62 location-plates, 7 top boards, 8 burner hearths, 81 lower chambers, 82 upper chamber, 10 chute boards, 101 grooves, 11 push pedals, 12 sealed heavy seal coat 13 heating element heaters 14 protective gas input pipes.
The specific embodiment
In order more to be expressly understood above-mentioned purpose of the present invention, feature and advantage, the present invention is further described in detail below in conjunction with the accompanying drawing and the specific embodiment.Need to prove that under the situation of not conflicting, the application's embodiment and the characteristic among the embodiment can make up each other.
A lot of details have been set forth in the following description so that make much of the present invention; But; The present invention can also adopt other to be different from mode described here and implement, and therefore, protection scope of the present invention does not receive the restriction of following disclosed specific embodiment.
As shown in Figure 1:
One embodiment of the invention provide a kind of soldering oven, comprise protective gas input pipe 14, heating element heater 13, burner hearth 8, bogey and furnace wall 2, and the tunnel type vertical cavity that furnace wall 2 surrounds constitutes burner hearth 8; Protective gas input pipe 14 is input protection gas in burner hearth 8; 13 pairs of workpiece that are positioned at burner hearth 8 of heating element heater heat, and comprise that also half inner cover, 3, half inner covers 3 are fixedly mounted in the burner hearth 8; Burner hearth is separated into lower chambers 81 and upper chamber 82, and lower chambers 81 is the workpiece brazing area; Bogey is installed on the diapire of lower chambers 81, can drive welded part vertically moving along burner hearth 8.
Adopt lower chambers that half inner cover structure surrounds brazing area,, accomplish welding workpiece through the support of bogey as workpiece; Wherein, protective gas feeds in the burner hearth, through heating element heater gas in the burner hearth and workpiece is heated, and guarantees the temperature constant in the burner hearth, satisfies the soldering requirement; Bogey drives workpiece and vertically moves along burner hearth, and workpiece is realized continuous welding.Wherein: protective gas plays protection and reduction, prevents the welded part oxidation.
Further, the cross section rectangular vertical cavity of burner hearth 8 for surrounding by base plate 4, left plate 5, right plate 6 and top board 7, base plate 4, left plate 5, right plate 6 and top board 7 adopt pottery to process.
Bogey adopts pottery to make and drive workpiece and moves in bottom chamber; Can satisfy the continuous requirements of large-scale production of heavy and big complex structural member; Can effectively carry the weight of big workpiece, guarantee that again bogey uses for a long time, reduce simultaneously and produce and maintenance cost.
The left plate 5 of burner hearth, right plate 6 and base plate 4 also can be processed into one, and perhaps the top board 7 of burner hearth can be processed into one with left plate 5, right plate 6, and these change the protection domain that all should belong to this patent.
Further again, bogey comprises chute board 10 and push pedal 11, and push pedal 11 longitudinally slidably is installed on the upper surface of chute board 10, and chute board 10 is fixedly mounted on the base plate 4, and push pedal 11 adopts pottery to process.
Adopt push pedal on chute board, to slide, can guarantee that the workpiece welding carries out continuously, realize producing in enormous quantities.Push pedal simultaneously is installed on the chute board, and chute board is fixedly mounted on the base plate, and big to each other contact area has guaranteed the enabling capabilities of push pedal and chute board; In addition, the push pedal bearing capacity that pottery is processed is strong, can satisfy the continuous welding of heavy and big workpiece.
Certainly, push pedal also can be directly installed on the base plate, slides along base plate.
Preferably, the upper surface of chute board 10 is provided with longitudinal fluting 101, and push pedal 11 is installed in the groove 101, can be along groove 101 longitudinal sliding motions.
Groove assurance push pedal is set slides, the workpiece motion s track is limited along groove.
Preferably, the outside wall surface that the internal face of half inner cover 3 is provided with reinforcement 61, half inner covers 3 is provided with location-plate 62, and location-plate 62 is located with base plate 4, left plate 5 and the right plate 6 of burner hearth mutually.
Reinforcement is set, has strengthened the intensity of half inner cover, improved the service life of half inner cover.Location-plate is set, half inner cover is installed firmly.
Further, preferably, 2 inner faces also are provided with furnace lining 1 in the furnace wall.
Furnace lining can be incubated temperature in the soldering oven effectively, prevents that internal heat runs off, and temperature stabilization and welding job are carried out smoothly in the assurance stove; Simultaneously, improve energy utilization rate, reduce cost.
In this technical scheme, preferably, 2 the left and right sides has the hole that heating element heater 13 is installed in the furnace wall.
Heating element heater is installed in the side, guarantees that the internal temperature of burner hearth is constant, and welding is carried out smoothly.
Preferably, 2 the left and right sides and top are equipped with sealed heavy seal coat 12 in the furnace wall.
Heavy seal coat is set, prevents that the tapping temperature of the left and right sides from quickening diffusion, cause temperature instability in the stove, influence the welding quality of workpiece in the stove.
Further, furnace lining 1 all adopts flame-proof thermal insulation material to process with sealed heavy seal coat 12.
Adopt flame-proof thermal insulation material, comprise asbestos board etc.,, can prevent that temperature guarantees the workpiece welding temperature rapidly to external world's diffusion in the stove, improve rate of energy, and cost is low because of having the effect of insulation.
Further again, protective gas comprises ammonia and nitrogen, and ammonia feeds in the lower chambers 81, and nitrogen feeds in the upper chamber 82.
The present invention adopts, not chamber structure, the employing ammonia of structure, refractory ceramics composition advance with nitrogen to protect, adopt push pedal as carrying tool half horse; Provide dew point in the furnace atmosphere below-40 ℃ effectively; Guaranteed that metal oxide is effectively reduced, and satisfies the needs of the continuous braze welding of heavy and big complex structural member in brazing process.
Protective gas adopts hydrogen or decomposed ammonia; 75% the hydrogen that can utilize that hydrogen or ammonia decomposites is protected soldering work piece; And utilize the high reproducibility of hydrogen, guarantee metal oxide in the process of soldering by effectively reduction, satisfy the continuous braze welding of heavy and big complex structural member.
The foregoing description; Adopt chamber structure that totally enclosed furnace wall, half inner cover, refractory ceramics form, adopt hydrogen or decomposed ammonia is protected and push pedal as carrying tool; The dew point that can effectively guarantee protective atmosphere in the stove is below-40 ℃; Thereby guaranteed that metal oxide is effectively reduced, and satisfies the continuous braze welding of heavy and big complex structural member in brazing process.
In this embodiment, the most basic condition of work of soldering oven of the present invention is the purity that guarantees protective atmosphere, and the dew point of protective atmosphere can satisfy the soldering of ordinary carbon steel, cast iron materials below-40 ℃.The decomposed ammonia of this motion charges at the burner hearth center, and directly is positioned in half inner cover, and the hydrogen in the decomposed ammonia plays protection and reduction.The water that produces after remaining nitrogen and the reduction reaction is wrapped in the periphery of half inner cover than great after the sinking, discharge at the two ends of burner hearth then, and remaining hydrogen adopts automatic ignition device to light and forms fiery curtain sealing.Because of the light specific gravity of hydrogen, thus in half inner cover, form malleation, and seal through fiery curtain, outside air should not be invaded in the stove, has guaranteed the high-purity of furnace atmosphere, satisfies the condition of soldering, realizes the continuous batch production in stove of large-area heavy industry spare.
In sum, soldering oven provided by the invention can satisfy the continuous production in enormous quantities of heavy and big complex structural member, and simultaneously, bogey can effectively carry the weight of big workpiece, and guarantees that bogey uses for a long time, reduces and produces and maintenance cost.
In the present invention, the term D score, " on " only be used for purpose of description, and can not be interpreted as indication or hint relative importance; Only if clear and definite regulation and qualification are arranged in addition, broad understanding all should be done in terms such as term " links to each other ", " connection ", " fixing ", for example, can be to be fixedly connected, and also can be to removably connect, or connect integratedly; Can be directly to link to each other, also can link to each other indirectly through intermediary.For those of ordinary skill in the art, can understand above-mentioned term concrete implication in the present invention as the case may be.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. soldering oven; Comprise protective gas input pipe (14), heating element heater (13), burner hearth (8), bogey and furnace wall (2); The tunnel type vertical cavity that said furnace wall (2) surrounds constitutes said burner hearth (8), and said protective gas input pipe (14) is input protection gas in said burner hearth (8), and said heating element heater (13) heats the workpiece that is positioned at said burner hearth (8); It is characterized in that
Also comprise half inner cover (3), said half inner cover (3) is fixedly mounted in the said burner hearth (8), and said burner hearth is separated into lower chambers (81) and upper chamber (82), and said lower chambers (81) is the workpiece brazing area;
Said bogey is installed on the diapire of said lower chambers (81), can drive welded part vertically moving along said burner hearth (8).
2. soldering oven according to claim 1 is characterized in that,
The cross section rectangular vertical cavity of said burner hearth (8) for being surrounded by base plate (4), left plate (5), right plate (6) and top board (7), said base plate (4), left plate (5), right plate (6) and top board (7) adopt pottery to process.
3. soldering oven according to claim 2 is characterized in that,
Said bogey comprises chute board (10) and push pedal (11); Said push pedal (11) longitudinally slidably is installed on the upper surface of said chute board (10); Said chute board (10) is fixedly mounted on the said base plate (4), and said push pedal (11) adopts pottery to process.
4. soldering oven according to claim 3 is characterized in that,
The upper surface of said chute board (10) is provided with longitudinal fluting (101), and said push pedal (11) is installed in the said groove (101), and can be along said groove (101) longitudinal sliding motion.
5. soldering oven according to claim 1 is characterized in that,
The internal face of said half inner cover (3) is provided with reinforcement (61); The outside wall surface of said half inner cover (3) is provided with location-plate (62), and said location-plate (62) is located with base plate (4), left plate (5) and the right plate (6) of said burner hearth (8) mutually.
6. according to each described soldering oven in the claim 1 to 5, it is characterized in that,
Inner face also is provided with furnace lining (1) in said furnace wall (2).
7. soldering oven according to claim 6 is characterized in that,
Have the hole that said heating element heater (13) is installed in the left and right sides of said furnace wall (2).
8. soldering oven according to claim 7 is characterized in that,
The left and right sides and top in said furnace wall (2) are equipped with sealed heavy seal coat (12).
9. soldering oven according to claim 8 is characterized in that,
Said furnace lining (1) and said sealed heavy seal coat (12) all adopt flame-proof thermal insulation material to process.
10. want 6 described soldering ovens according to claim, it is characterized in that,
Said protective gas comprises ammonia and nitrogen, and said ammonia feeds in the said lower chambers (81), and said nitrogen feeds in the said upper chamber (82).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210347072.4A CN102837095B (en) | 2012-09-18 | 2012-09-18 | Brazing furnace |
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| CN201210347072.4A CN102837095B (en) | 2012-09-18 | 2012-09-18 | Brazing furnace |
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| CN102837095B CN102837095B (en) | 2015-05-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317202A (en) * | 2013-06-07 | 2013-09-25 | 三一汽车制造有限公司 | Brazing device |
| CN111604557A (en) * | 2020-06-22 | 2020-09-01 | 天津华耐机械设备制造有限公司 | Novel section of brazing of energy-efficient brazing furnace |
| CN111761156A (en) * | 2020-07-22 | 2020-10-13 | 厦门福鑫特工贸有限公司 | Brazing method for large computer radiator |
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| CN111761156A (en) * | 2020-07-22 | 2020-10-13 | 厦门福鑫特工贸有限公司 | Brazing method for large computer radiator |
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Effective date of registration: 20151120 Address after: 316 413000, comprehensive service building, East New District, hi tech Zone, Hunan, Yiyang Patentee after: HUNAN SANYI ZHONGYANG MACHINERY CO., LTD. Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: Sanyi Heavy Industry Co., Ltd. |