CN111604557A - Novel section of brazing of energy-efficient brazing furnace - Google Patents

Novel section of brazing of energy-efficient brazing furnace Download PDF

Info

Publication number
CN111604557A
CN111604557A CN202010581153.5A CN202010581153A CN111604557A CN 111604557 A CN111604557 A CN 111604557A CN 202010581153 A CN202010581153 A CN 202010581153A CN 111604557 A CN111604557 A CN 111604557A
Authority
CN
China
Prior art keywords
furnace
muffle
brazing
furnace shell
heater
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010581153.5A
Other languages
Chinese (zh)
Inventor
章子秀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Huanai Machinery Equipment Manufacturing Co ltd
Original Assignee
Tianjin Huanai Machinery Equipment Manufacturing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Huanai Machinery Equipment Manufacturing Co ltd filed Critical Tianjin Huanai Machinery Equipment Manufacturing Co ltd
Priority to CN202010581153.5A priority Critical patent/CN111604557A/en
Publication of CN111604557A publication Critical patent/CN111604557A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/08Auxiliary devices therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/008Soldering within a furnace
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/04Heating appliances
    • B23K3/047Heating appliances electric

Abstract

The invention discloses a brazing section of a novel high-efficiency energy-saving brazing furnace, which relates to the field of brazing section equipment and aims at solving the problem that when an aluminum product in the conventional brazing furnace is heated and welded with parts at the brazing section, the welding efficiency is low due to the fact that the temperature of the brazing section is slowly increased. The device provided by the invention can improve the production welding efficiency, prolong the service life of equipment, solve the problem of low heating efficiency of the conventional brazing section, reduce the use cost of the equipment and occupy a small area.

Description

Novel section of brazing of energy-efficient brazing furnace
Technical Field
The invention relates to the field of brazing section equipment, in particular to a brazing section of a novel efficient energy-saving brazing furnace.
Background
The brazing furnace is a heat treatment device for welding aluminum products and parts, and welding is carried out by utilizing the characteristic that the alloy melting point of aluminum brazing filler metal is lower than the melting point of base metal aluminum metal. The solder is usually placed near or in the part to be connected, namely the surface to be welded, NOCOLOK aluminum flux is coated between the part and the welding surface and on the surface, after assembly and compaction, the aluminum product is dried by a drying furnace, and is heated to the temperature at which the solder alloy is molten and the base metal is not molten under the protection of certain inert gas. The inert gas used is generally nitrogen. Meanwhile, the NOCOLOK aluminum soldering flux breaks an oxide film of aluminum, so that the brazing filler metal is melted and diffused on the surface of the base metal, and after cooling, a metal bonding layer is formed between the brazing filler metal and the contact surface of the aluminum product.
The brazing furnace is generally applied to the industries of ferrous metallurgy and the like, and mainly comprises the following components: go up a district, degrease stove, spray set, drying furnace, convection current preheater, brazing section, atmosphere protection cooling chamber, forced cooling room and lower district, wherein the brazing section is the most critical part, and its performance determines the efficiency and the quality of brazing of whole stove, and present aluminium products are when the section heating of brazing, and the temperature of brazing section heaies up slowly, leads to welding efficiency low, in order to solve this problem, we propose the brazing section of a novel energy-efficient brazing furnace.
Disclosure of Invention
The invention provides a brazing section of a novel high-efficiency energy-saving brazing furnace, which solves the problem of low welding efficiency caused by slow temperature rise of the brazing section when an aluminum product in the existing brazing furnace is heated in the brazing section and welded with parts.
In order to achieve the purpose, the invention adopts the following technical scheme:
a novel brazing section of a high-efficiency energy-saving brazing furnace adopts a semi-muffle structure, a heating part of a front section to be welded and adopts a heater to directly radiate a workpiece, so that the workpiece is quickly heated to improve the heating rate and realize high efficiency, and comprises a furnace shell, wherein both sides of the top end of the furnace shell are fixedly provided with a furnace top through bolts, the bottom end of the furnace shell is fixedly provided with a muffle supporting frame, one end of the muffle supporting frame, which is close to the furnace top, is fixedly provided with a muffle, one end of the muffle is fixedly provided with a mesh belt supporting frame, the top end of the mesh belt supporting frame is provided with a mesh belt, heat insulating layers are respectively arranged between the muffle and the furnace top and the furnace shell, heaters are arranged at the upper end and the lower end of both sides of the furnace shell, extend to the inside of the furnace shell through the side wall of the furnace shell, the utility model discloses a muffle furnace, including the stove outer shell, muffle lateral wall, thermocouple, heater, stove outer shell, muffle lateral wall, bottom, slag collecting box, muffle portion, furnace shell bottom, furnace shell, muffle portion, furnace shell side wall upper end fixed mounting has a nitrogen gas pipe, just nitrogen gas pipe one end runs through the stove outer shell and muffle lateral wall extends to the inside upper end of muffle, the heat preservation top that the muffle portion is not had in stove outer shell bottom is provided with the bottom and connects the sediment box, the lower extreme all is provided with the thermocouple on every district of stove outer shell one side, just thermocouple one end runs through the stove outer shell and muffle lateral wall extends to inside the muffle, the both ends that the.
Preferably, the nitrogen gas pipe is the spiral only straight pipe of S type or returning type, plays the effect of preheating nitrogen gas, and the one end that the nitrogen gas pipe extends to the inside of muffle is provided with the nitrogen gas filling opening.
Preferably, the semi-muffle structure can enable the workpiece to be heated up quickly.
Preferably, the joints of the furnace shell, the furnace top and the heater are provided with sealing gaskets so as to reduce the consumption of protective gas nitrogen.
Preferably, the thermocouple is arranged inside the heater safety cover, and the thermocouple connection part is processed in an airtight mode.
Preferably, the metal curtain is arranged inside the muffle, so that the quality of the atmosphere in the semi-muffle furnace is improved, and the nitrogen consumption is reduced.
Preferably, the heater is made to resist flux during aluminum brazing and the connection end lead-out portion is made to be airtight.
Preferably, the mesh belt support frame is fishbone-shaped, and the fishbone-shaped mesh belt support frame enables the mesh belt to pass through stably and smoothly without accumulating slag.
The invention has the beneficial effects that:
1. the heating rate of the aluminum product workpiece in a normal furnace type is about 60 ℃/min, the device can increase the heating rate to 150 ℃/min, the production efficiency is improved by 150% due to the heating efficiency, the efficiency of the furnace with the same length is improved by 30%, the use cost of the equipment is reduced, and the occupied area is small.
2. Through the device with muffle structural improvement, reduced expend with heat and contract with cold deformation etc. that cause the muffle for the great extension of the life of muffle has avoided the linear expansion of muffle to make the condition of expend with heat and contract with cold of equipment.
In conclusion, the device not only can promote production welding efficiency, but also can prolong the service life of equipment, and solves the problem that the heating efficiency of the existing brazing section is low.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic top view of the present invention.
FIG. 3 is a schematic side view of the structure of the present invention.
FIG. 4 is a schematic diagram of the side view of the structure of the present invention B-B.
Reference numbers in the figures: 1. a muffle; 2. a heater; 3. a heat-insulating layer; 4. a furnace shell; 5. a nitrogen gas pipe; 6. a metal curtain; 7. a mesh belt; 8. a thermocouple; 9. a mesh belt supporting frame; 10. a muffle support frame; 11. a heater safety cover; 12. a bottom slag receiving box; 13. a furnace roof; 14. a gasket; 15. heater leading-out terminal and wire.
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. 1-4, a brazing section of a novel high-efficiency energy-saving brazing furnace comprises a furnace shell 4, wherein furnace tops 13 are fixedly arranged on two sides of the top end of the furnace shell 4 through bolts, a muffle support frame 10 is fixedly arranged at the bottom end of the furnace shell 4, a muffle 1 is fixedly arranged at one end, close to the furnace tops 13, of the muffle support frame 10, a mesh belt support frame 9 is fixedly arranged at one end of the muffle 1, a mesh belt 7 is arranged at the top end of the mesh belt support frame 9, heat preservation layers 3 are respectively arranged between the muffle 1 and the furnace tops 13 as well as between the furnace shell 4, heaters 2 are arranged at the upper end and the lower end of two sides of the furnace shell 4, the heaters 2 penetrate through the side wall of the furnace shell 4 and extend into the furnace shell, one section of the heaters 2 penetrating through the side wall of the furnace shell 4 and extend into the furnace shell is distributed, just 5 one end of nitrogen gas pipe runs through stove outer covering 4 and muffle 1 lateral wall and extends to the inside upper end of muffle 1, 3 tops of the no muffle 1 partial heat preservation in stove outer covering 4 bottom are provided with the bottom and connect sediment box 12, the lower extreme all is provided with thermocouple 8 on 4 one sides of stove outer covering, just thermocouple 8 one end runs through inside stove outer covering 4 and muffle 1 lateral wall extend to muffle 1, heater 2 runs through the both ends that 4 both sides of stove outer covering extend to the outside and all is provided with the heater and draws forth end and line 15, just the heater is drawn forth end and line 15 outer lane and is provided with heater safety cover 11.
The nitrogen pipe 5 is in an S-shaped spiral mode and plays a role in preheating nitrogen, a nitrogen filling opening is formed in one end, extending to the inside of the muffle 1, of the nitrogen pipe 5, sealing gaskets 14 are arranged at the joint of the furnace shell 4, the furnace top 13 and the heater 2 so as to reduce consumption of protective gas nitrogen, the thermocouple 8 is arranged inside the heater safety cover 11, airtight treatment is conducted at the joint of the thermocouple 8, a metal curtain 6 is arranged inside the muffle 1, the muffle 1 is of a half-muffle structure and can enable a workpiece to be heated rapidly, airtightness is guaranteed through the furnace shell 4 and the metal curtain 6 in the furnace, the high-quality metal curtains 6 are installed at two ends of the half-muffle, the heater 2 is made to resist soldering flux in an aluminum brazing process, partial airtightness requirements are led out at the connecting end, the mesh belt supporting frame is in a fishbone shape, and the fishbone-shaped supporting frame enables the mesh belt to pass through smoothly, no slag is deposited.
The working principle is as follows: firstly, a workpiece is placed in a muffle 1, a nitrogen pipe 5 is connected with nitrogen, a heater 2 is started, the nitrogen pipe 5 releases the nitrogen into the muffle 1, the workpiece is protected by the nitrogen, the heater 2 directly radiates and heats the workpiece in a heating stage in a furnace, the heating rate of the workpiece can reach 150 ℃/min at most, compared with 60 ℃/min of a traditional furnace, the time of the workpiece in the heating stage can be changed from 6.7min to 2.7min, 4 min is shortened, the total time of the whole process curve is shortened by about 33%, residues generated after the workpiece is heated and heated fall into a bottom residue receiving box 12, and the bottom residue receiving box 12 is drawn out to clean the residues;
the manufacturing process needs to be noted as follows: the muffle 1 is a half muffle, the air tightness is ensured by a furnace body and a metal curtain 6 in the furnace, a heater 2 is arranged on a furnace shell 4 through a hole, a sealing gasket 14 is arranged at the position for reducing the consumption of protective nitrogen, the surface of the heat-insulating layer 3 is specially treated, the service life of the heat-insulating layer 3 is prolonged, and the air tightness of the furnace shell 4 needs to reach the standard; firm reliable is ensured in the heat preservation preparation, and scaling powder among the aluminium brazing process can be resisted in the preparation of heater 2 to the connection end is drawn forth the part gas tightness and is required high, has placed bottom on the partial bottom heat preservation 3 of muffle 1 and has connect sediment box 12, and nitrogen gas pipe 5 is the S type and spirals, plays the effect of preheating nitrogen gas, and the airtight processing is done at thermocouple 8 junction, and high-quality metal curtain 6 is installed at half muffle 1 both ends.
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 (8)

1. The brazing section of the novel high-efficiency energy-saving brazing furnace comprises a furnace shell (4) and is characterized in that furnace tops (13) are fixedly mounted on two sides of the top end of the furnace shell (4) through bolts, a muffle supporting frame (10) is fixedly mounted at the bottom end of the furnace shell (4), a muffle (1) is fixedly mounted at one end, close to the furnace tops (13), of the muffle supporting frame (10), a mesh belt supporting frame (9) is fixedly mounted at one end of the muffle (1), a mesh belt (7) is arranged at the top end of the mesh belt supporting frame (9), heat insulation layers (3) are arranged among the muffle (1), the furnace tops (13) and the furnace shell (4), heaters (2) are arranged at the upper end and the lower end of two sides of the furnace shell (4), the heaters (2) extend through the side wall of the furnace shell (4) to the inside of the furnace shell, and one sections of the heaters (2) extending through the side wall of the furnace shell (4) to, furnace shell (4) a lateral wall upper end fixed mounting has nitrogen gas pipe (5), just nitrogen gas pipe (5) one end runs through furnace shell (4) and muffle (1) lateral wall and extends to muffle (1) inside upper end, heat preservation (3) top that furnace shell (4) bottom does not have muffle (1) part is provided with the bottom and connects slag box (12), the lower extreme all is provided with thermocouple (8) on furnace shell (4) one side, just thermocouple (8) one end runs through furnace shell (4) and muffle (1) lateral wall and extends to inside muffle (1), heater (2) run through both ends that furnace shell (4) both sides extend to the outside and all are provided with heater and draw forth end and line (15), just heater end and line (15) outer lane are provided with heater safety cover (11).
2. The brazing section of the novel high-efficiency energy-saving brazing furnace according to claim 1, wherein the nitrogen pipe (5) is a straight pipe which is coiled in an S shape or a reverse shape and only used for preheating nitrogen, and a nitrogen injection opening is formed in one end of the nitrogen pipe (5) extending to the inside of the muffle (1).
3. The brazing section of the novel high-efficiency energy-saving brazing furnace according to claim 1, wherein the muffle (1) is of a half-muffle structure, so that the temperature of a workpiece can be rapidly increased.
4. The brazing section of the novel high-efficiency energy-saving brazing furnace according to claim 1, wherein sealing gaskets (14) are arranged at the joints of the furnace shell (4), the furnace top (13) and the heater (2) so as to reduce consumption of protective gas nitrogen.
5. The brazing section of the novel high-efficiency energy-saving brazing furnace according to the claim 1, characterized in that the thermocouple (8) is arranged inside the heater safety cover (11), and the junction of the thermocouple (8) is hermetically treated.
6. The novel brazing section of the high-efficiency energy-saving brazing furnace as claimed in claim 3, wherein the muffle (1) is internally provided with the metal curtain (6), the quality of the atmosphere in the semi-muffle furnace is improved, the nitrogen consumption is reduced, and the high-quality metal curtains (6) are arranged at two ends of the semi-muffle furnace.
7. The brazing section of the novel high-efficiency energy-saving brazing furnace as claimed in claim 1, wherein the heater (2) is made to resist a flux in an aluminum brazing process, and the connecting end leads to a part of air tightness requirement.
8. The brazing section of the novel high-efficiency energy-saving brazing furnace according to claim 1, wherein the mesh belt support frame (9) is in a fishbone shape, and the fishbone-shaped mesh belt support frame (9) enables the mesh belt (7) to pass smoothly without accumulating slag.
CN202010581153.5A 2020-06-22 2020-06-22 Novel section of brazing of energy-efficient brazing furnace Pending CN111604557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010581153.5A CN111604557A (en) 2020-06-22 2020-06-22 Novel section of brazing of energy-efficient brazing furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010581153.5A CN111604557A (en) 2020-06-22 2020-06-22 Novel section of brazing of energy-efficient brazing furnace

Publications (1)

Publication Number Publication Date
CN111604557A true CN111604557A (en) 2020-09-01

Family

ID=72194226

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010581153.5A Pending CN111604557A (en) 2020-06-22 2020-06-22 Novel section of brazing of energy-efficient brazing furnace

Country Status (1)

Country Link
CN (1) CN111604557A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113385768A (en) * 2021-06-04 2021-09-14 纳百川控股有限公司 Special muffle-free brazing furnace for liquid cooling plate of new energy automobile power battery

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5289968A (en) * 1991-10-18 1994-03-01 Nippondenso Co., Ltd. Aluminum brazing method and furnace therefor
CN102837095A (en) * 2012-09-18 2012-12-26 三一重工股份有限公司 Brazing furnace
CN202902845U (en) * 2012-10-31 2013-04-24 中国石油化工股份有限公司 Net belt deviation-correcting device
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
CN105328293A (en) * 2015-11-24 2016-02-17 南昌银轮热交换系统有限公司 Energy-saving brazing furnace
CN205074640U (en) * 2015-10-19 2016-03-09 长兴恒达炉业有限公司 Heating device for stove brazes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5289968A (en) * 1991-10-18 1994-03-01 Nippondenso Co., Ltd. Aluminum brazing method and furnace therefor
CN102837095A (en) * 2012-09-18 2012-12-26 三一重工股份有限公司 Brazing furnace
CN202902845U (en) * 2012-10-31 2013-04-24 中国石油化工股份有限公司 Net belt deviation-correcting device
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
CN205074640U (en) * 2015-10-19 2016-03-09 长兴恒达炉业有限公司 Heating device for stove brazes
CN105328293A (en) * 2015-11-24 2016-02-17 南昌银轮热交换系统有限公司 Energy-saving brazing furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113385768A (en) * 2021-06-04 2021-09-14 纳百川控股有限公司 Special muffle-free brazing furnace for liquid cooling plate of new energy automobile power battery

Similar Documents

Publication Publication Date Title
CN102528193A (en) Copper and stainless steel brazing process
CN111604557A (en) Novel section of brazing of energy-efficient brazing furnace
CN104858520B (en) A kind of nitrogen protection continuous type soldering oven
CN104138823A (en) Aluminum-workpiece pre-spraying device
CN104668688A (en) Vacuum resistive brazing method for lap piece
CN103231209A (en) Method for producing vacuum-embedded metallurgical composite bimetal seamless tube
CN103433631A (en) Nickel-base brazing process of heating tube
US6848609B2 (en) Method of making finned tubes
CN101000218A (en) Bus, heavy, duty truck radiation brazed of water chamber and main piece and its brazing technology
CN2600780Y (en) High-efficient low thermal resistance high-temp soldering finned tube
CN207223149U (en) A kind of automobile radiators production soldering oven
CN2777320Y (en) Bimetallic composite tube
CN107511552A (en) A kind of cellular board and its processing method
CN201881024U (en) Air cooled aluminum soldering furnace
CN209322982U (en) A kind of reducing gas protection soldering oven
CN201792066U (en) Hot blast flow guide structure in aluminum soldering thermal degreasing furnace
CN201783717U (en) Installation structure of electric heating tubes in electric heating aluminium brazing degreasing furnace
CN110551881A (en) cooling-free induction heater for postweld heat treatment of small-diameter calandria and manufacturing method thereof
CN106181113A (en) A kind of soldering composite aluminium alloy solder silk and preparation method thereof
CN109768671A (en) A kind of welding method of split-pole electric machine with aluminium winding
CN204074426U (en) The pre-spray equipment of aluminum workpiece
CN205014819U (en) Novel water -cooling horse not
CN201783719U (en) Furnace pipe linear expansion handling structure for aluminum soldering furnace
CN212234100U (en) Multi-layer composite pot
CN209854229U (en) Tin melting furnace for tin coating of traction motor outgoing line

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20200901

WD01 Invention patent application deemed withdrawn after publication