Diamond brazing device and method using modified phosphorus-containing nickel-based brazing filler metal

Abstract

The invention belongs to the technical field of brazing devices, and discloses a diamond brazing device using modified phosphorus-containing nickel-based brazing filler metal and a method thereof.The diamond brazing device comprises a brazing device body, a protective door is hinged to one side of the brazing device body, a heating pipe is arranged in the brazing device body, and a storage rack is slidably mounted in the brazing device body; a protection assembly is arranged above the storage rack; during brazing, diamond abrasive particles, a base material and modified phosphorus-containing nickel-based brazing filler metal are pretreated and positioned and placed at the top end of a storage rack, then a protective door is closed, and the interior of a brazing device body is heated through a heating pipe; and meanwhile, inert gas in the compressed gas tank enters the third connecting pipe through the first connecting pipe and the second connecting pipe by starting the gas pump and is finally sprayed out of the spray head, a molten pool in the brazing process is protected, and the welding seam quality can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of brazing devices, and in particular relates to a diamond brazing device and a method using a modified phosphorus-containing nickel-based brazing filler metal. Background Art

[0002] Diamond brazing device is a special device used to connect diamond material with other base materials (such as metal, cemented carbide, etc.) by brazing. This device forms a firm connection between diamond material and base material by high temperature heating.

[0003] On the basis of traditional nickel-based brazing filler metal, by adding phosphorus or other alloy elements for modification, its brazing strength, oxidation resistance or wettability can be improved. The addition of phosphorus helps to form a denser intermetallic compound layer during the brazing process, thereby enhancing the bonding force between the brazing filler metal and diamond, and further improving the brazing effect.

[0004] Since the welding part of the brazing device is heated at high temperature during use, it is easy for the welding part to react with oxygen in the surrounding air, thus causing oxidation and ultimately affecting the quality of the weld. Summary of the invention

[0005] The object of the present invention is to provide a diamond brazing device and method using a modified phosphorus-containing nickel-based brazing filler metal to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a diamond brazing device using a modified phosphorus-containing nickel-based brazing filler metal, comprising a brazing device body, a protective door hinged on one side of the brazing device body, a heating tube arranged inside the brazing device body, a storage rack slidably installed inside the brazing device body, and a protective assembly arranged above the storage rack;

[0007] Among them, the protection component includes a nozzle arranged above the storage rack, and the nozzle is slidably installed inside the brazing device body through an adjustment component. The nozzles are evenly distributed in a circular array, and the top of each nozzle is fixedly connected to a third connecting tube, and each third connecting tube is fixedly installed at the bottom end of a second connecting tube. An air pump is installed at one end of the second connecting tube away from the third connecting tube, and a first connecting tube is arranged on one side of the air pump. A compressed gas tank is installed at one end of the first connecting tube away from the air pump, and the compressed gas tank is arranged on the side wall of the brazing device body, and a filter component is arranged inside the brazing device body.

[0008] As a further technical solution of the present invention, the adjustment component includes a fixed plate fixedly installed inside the main body of the brazing device, the interior of the fixed plate is evenly provided with second slide grooves in a circular array, the third connecting tube is slidably installed on the inner wall of the second slide groove, a first gear is provided on the top of the fixed plate, the first gear is rotatably installed inside the main body of the brazing device, the interior of the first gear is evenly provided with first slide grooves in a circular array, and the third connecting tube is slidably installed inside the first slide groove.

[0009] As a further technical solution of the present invention, one side of the first gear is meshedly connected with the second gear, the top of the second gear is fixedly installed with a first bevel gear, the top of the first bevel gear is meshedly connected with a second bevel gear, one side of the second bevel gear is fixedly installed with a rotating shaft, and one end of the rotating shaft is fixedly installed with a rotating block.

[0010] As a further technical solution of the present invention, the inner wall diameter of the first gear is ten N times the inner wall diameter of the second gear, and N is a positive integer.

[0011] As a further technical solution of the present invention, the rotating block is embedded in the interior of the accommodating groove, and the accommodating groove is provided on the side wall of the main body of the brazing device.

[0012] As a further technical solution of the present invention, a limiting block is fixedly installed on the outer wall of the third connecting pipe.

[0013] As a further technical solution of the present invention, a connection net is fixedly connected to the top of the nozzle, and the connection net is arranged on the outer wall of the third connecting pipe.

[0014] As a further technical solution of the present invention, the filter assembly includes a filter plate arranged inside the brazing device body, and an exhaust port and a through hole are respectively arranged above and below the filter plate, and the exhaust port and the through hole are both opened inside the brazing device body.

[0015] As a further technical solution of the present invention, a plurality of filter plates are provided.

[0016] A method for diamond brazing a device using a modified phosphorus-containing nickel-based brazing filler metal comprises the following steps:

[0017] S1: During brazing, the diamond abrasive, the base material and the modified phosphorus-containing nickel-based brazing filler metal are first pre-treated and positioned, and then placed on the top of the rack;

[0018] S2: Then, according to the specifications and sizes of the materials, the position of the nozzle spraying the inert gas is adjusted, and the rotating block is rotated. The rotation of the rotating block drives the rotation of the rotating shaft, and the rotation of the rotating shaft drives the rotation of the second bevel gear. The rotation of the second bevel gear drives the rotation of the first bevel gear. The rotation of the first bevel gear drives the rotation of the second gear. The rotation of the second gear drives the rotation of the first gear. The rotation of the first gear causes the third connecting pipe to slide inside the first chute, and the movement of the third connecting pipe is limited by the second chute, so that the multiple nozzles can be annularly telescopic to adjust the jet range;

[0019] S3: Then bend the connecting net to adjust the angle of the nozzle;

[0020] S4: Finally, the protective door is closed, and the inside of the brazing device body is heated by the heating tube to perform brazing. At the same time, the air pump is started to allow the inert gas in the compressed gas tank to enter the third connecting tube through the first connecting tube and the second connecting tube, and finally be sprayed out from the nozzle, thereby effectively protecting the molten pool during the brazing process.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The present invention provides a protective component. During brazing, diamond abrasives, a base material and a modified phosphorus-containing nickel-based brazing filler metal are pre-treated and positioned and placed on the top of a shelf. The protective door is then closed, and the inside of the brazing device body is heated by a heating tube. At the same time, the air pump is started to allow the inert gas in the compressed gas tank to enter the third connecting tube through the first connecting tube and the second connecting tube, and finally to be sprayed out from the nozzle, so as to prevent the welding part from reacting with oxygen in the surrounding air, thereby causing oxidation, which ultimately affects the quality of the weld. The molten pool during the brazing process is protected, and the quality of the weld can be improved.

[0023] 2. The present invention can adjust the range of inert gas discharged by the nozzle according to the specifications of the material before brazing by adjusting the setting of the component. One of the nozzles can be moved. The movement of the nozzle drives the third connecting pipe to move in the inner walls of the second chute and the first chute. When the third connecting pipe moves in the first chute, the arc-shaped guide of the first chute causes the first gear to rotate. When the first gear rotates, the other third connecting pipes are forced to move simultaneously through the other first chute. The position of each nozzle is adjusted, so that several nozzles can be annularly contracted or expanded to form a stable welding environment, thereby ensuring the stability and reliability of the welding process.

[0024] 3. The present invention provides a filter assembly. During brazing, after the nozzle sprays out inert gas, excess gas enters the interior of the through hole and flows upward. After being filtered by the filter plate, it is discharged from the main body of the brazing device from the exhaust port. This prevents the brazing material and the base material from volatilizing at high temperatures to form toxic smoke and gas during the brazing process. Filtering and then discharging the toxic smoke and gas can reduce the concentration of harmful substances and improve the safety of the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0027] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle;

[0028] Figure 4 For the present invention Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0029] Figure 5 This is a schematic diagram of the structure of the first gear of the present invention;

[0030] Figure 6 It is a schematic cross-sectional view of the structure of the first gear of the present invention.

[0031] In the figure: 1. main body of the brazing device; 2. protective door; 3. storage rack; 4. heating tube; 5. compressed gas tank; 6. first connecting pipe; 7. air pump; 8. second connecting pipe; 9. third connecting pipe; 10. nozzle; 11. first gear; 12. first slide groove; 13. second gear; 14. first bevel gear; 15. second bevel gear; 16. rotating shaft; 17. rotating block; 18. accommodating groove; 19. connecting net; 20. fixing plate; 21. second slide groove; 22. limiting block; 23. through hole; 24. filter plate; 25. exhaust port. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figures 1 to 6As shown, in the embodiment of the present invention, a diamond brazing device using a modified phosphorus-containing nickel-based brazing filler metal comprises a brazing device body 1, a protective door 2 is hinged on one side of the brazing device body 1, a heating tube 4 is arranged inside the brazing device body 1, a storage rack 3 is slidably installed inside the brazing device body 1, and a protective component is arranged above the storage rack 3;

[0034] Among them, the protection component includes a nozzle 10 arranged above the storage rack 3, and the nozzle 10 is slidably installed inside the brazing device body 1 through an adjustment component. The nozzle 10 is evenly distributed in a circular array, and the top of each nozzle 10 is fixedly connected to a third connecting pipe 9, and each third connecting pipe 9 is fixedly installed at the bottom end of the second connecting pipe 8. An air pump 7 is installed at one end of the second connecting pipe 8 away from the third connecting pipe 9, and a first connecting pipe 6 is arranged on one side of the air pump 7. A compressed gas tank 5 is installed at one end of the first connecting pipe 6 away from the air pump 7. The compressed gas tank 5 is arranged on the side wall of the brazing device body 1, and a filter component is arranged inside the brazing device body 1.

[0035] The gas inside the compressed gas tank 5 is set to be an inert gas (such as argon or helium);

[0036] During brazing, diamond abrasives, base material and modified phosphorus-containing nickel-based brazing filler metal are pretreated and positioned and placed on the top of the rack 3, then the protective door 2 is closed, the inside of the brazing device body 1 is heated by the heating tube 4, and at the same time, the air pump 7 is started to allow the inert gas in the compressed gas tank 5 to enter the third connecting tube 9 through the first connecting tube 6 and the second connecting tube 8, and finally be sprayed out from the nozzle 10 to prevent the welding part from reacting with oxygen in the surrounding air, thereby causing oxidation, which ultimately affects the quality of the weld. Protecting the molten pool during the brazing process can improve the quality of the weld.

[0037] like Figures 1 to 6 As shown, the adjustment component includes a fixed plate 20 fixedly installed inside the brazing device body 1, the interior of the fixed plate 20 is evenly provided with second slide grooves 21 in a circular array, the third connecting tube 9 is slidably installed on the inner wall of the second slide groove 21, and a first gear 11 is provided at the top of the fixed plate 20. The first gear 11 is rotatably installed inside the brazing device body 1, the interior of the first gear 11 is evenly provided with first slide grooves 12 in a circular array, and the third connecting tube 9 is slidably installed inside the first slide groove 12.

[0038] The third connecting pipe 9 is configured as a hose;

[0039] Before brazing, the range of inert gas discharge from the nozzle 10 can be adjusted according to the specifications of the material. One of the nozzles 10 can be moved. The movement of the nozzle 10 drives the third connecting pipe 9 to move in the inner walls of the second chute 21 and the first chute 12. When the third connecting pipe 9 moves in the first chute 12, the arc-shaped guide of the first chute 12 causes the first gear 11 to rotate. When the first gear 11 rotates, other third connecting pipes 9 are forced to move simultaneously through other first chute 12. The position of each nozzle 10 is adjusted, so that several nozzles 10 can be annularly contracted or expanded to form a stable welding environment, thereby ensuring the stability and reliability of the welding process.

[0040] like Figures 1 to 3 As shown, one side of the first gear 11 is meshedly connected with the second gear 13, the top of the second gear 13 is fixedly mounted with a first bevel gear 14, the top of the first bevel gear 14 is meshedly connected with a second bevel gear 15, one side of the second bevel gear 15 is fixedly mounted with a rotating shaft 16, and one end of the rotating shaft 16 is fixedly mounted with a rotating block 17.

[0041] When it is necessary to adjust the jet range between several nozzles 10, the rotating block 17 can be rotated. The rotation of the rotating block 17 drives the rotation of the rotating shaft 16, and the rotation of the rotating shaft 16 drives the rotation of the second bevel gear 15. The rotation of the second bevel gear 15 drives the rotation of the first bevel gear 14. The rotation of the first bevel gear 14 drives the rotation of the second gear 13. The rotation of the second gear 13 drives the rotation of the first gear 11, so that the multiple nozzles 10 can be annularly extended and retracted to adjust the jet range. Compared with the adjustment method of manually moving the nozzle 10, the adjustment method by rotating the rotating block 17 is more stable.

[0042] like Figures 1 to 6 As shown, the inner wall diameter of the first gear 11 is ten N times the inner wall diameter of the second gear 13, and N is a positive integer.

[0043] The second gear 13 rotates N circles and the first gear 11 rotates one circle, so that the speed of the nozzle 10 moves slowly, which is convenient for precise adjustment.

[0044] like Figure 2 and Figure 3 As shown, the rotating block 17 is embedded in the receiving groove 18 , and the receiving groove 18 is opened on the side wall of the brazing device body 1 .

[0045] The rotating block 17 is accommodated by the accommodating groove 18 to improve the overall flatness and aesthetic appearance of the device.

[0046] like Figure 5 and Figure 6 As shown, a limit block 22 is fixedly installed on the outer wall of the third connecting pipe 9 .

[0047] The limiting blocks 22 are located on both sides of the second slide groove 21 , so that the third connecting pipe 9 is stably embedded in the second slide groove 21 , thereby preventing the third connecting pipe 9 from being deformed due to its flexibility.

[0048] like Figure 2 and Figure 3 As shown, a connection net 19 is fixedly connected to the top of the nozzle 10 , and the connection net 19 is arranged on the outer wall of the third connecting pipe 9 .

[0049] The connection net 19 is made of metal material, such as aluminum alloy, which has the characteristics of high strength and fatigue resistance. The angle of the nozzle 10 can be adjusted by bending and shaping, and has good supporting force after adjustment.

[0050] By adjusting the angle of the nozzle 10 through the connection net 19, the spray angle of the inert gas can be optimized according to the actual application situation to ensure the density and uniformity of the weld, thereby improving the strength and mechanical properties of the weld.

[0051] like Figure 4 As shown, the filter assembly includes a filter plate 24 disposed inside the brazing device body 1 , and an exhaust port 25 and a through hole 23 are respectively disposed above and below the filter plate 24 , and both the exhaust port 25 and the through hole 23 are opened inside the brazing device body 1 .

[0052] During brazing, after the nozzle 10 sprays the inert gas, the excess gas enters the through hole 23 and flows upward, and is filtered by the filter plate 24 and then discharged from the brazing device body 1 from the exhaust port 25, so as to prevent the brazing material and the base material from volatilizing at high temperature during the brazing process to form toxic smoke and gas. Filtering and then discharging the toxic smoke and gas can reduce the concentration of harmful substances and improve the safety of the working environment.

[0053] like Figure 4 As shown, a plurality of filter plates 24 are provided.

[0054] A plurality of filter plates 24 can form multi-stage filtration, and each stage of the filter plates 24 can remove a portion of the smoke and harmful substances in the gas, thereby significantly improving the overall filtration efficiency.

[0055] A method for diamond brazing a device using a modified phosphorus-containing nickel-based brazing filler metal comprises the following steps:

[0056] S1: During brazing, firstly, diamond abrasive grains, base material and modified phosphorus-containing nickel-based brazing filler metal are pre-treated and positioned, and then placed on the top of the rack 3;

[0057] S2: Then, the position where the nozzle 10 sprays the inert gas is adjusted according to the specifications of the material, and the rotating block 17 is rotated. The rotation of the rotating block 17 drives the rotation of the rotating shaft 16. The rotation of the rotating shaft 16 drives the rotation of the second bevel gear 15. The rotation of the second bevel gear 15 drives the rotation of the first bevel gear 14. The rotation of the first bevel gear 14 drives the rotation of the second gear 13. The rotation of the second gear 13 drives the rotation of the first gear 11. The rotation of the first gear 11 causes the third connecting pipe 9 to slide inside the first chute 12, and the movement of the third connecting pipe 9 is limited by the second chute 21, so that the multiple nozzles 10 can be annularly telescopic to adjust the jet range;

[0058] S3: Then bend the connecting net 19 to adjust the angle of the nozzle 10;

[0059] S4: Finally, the protective door 2 is closed, and the interior of the brazing device body 1 is heated by the heating tube 4 to perform brazing. At the same time, the air pump 7 is started to allow the inert gas in the compressed gas tank 5 to enter the third connecting tube 9 through the first connecting tube 6 and the second connecting tube 8, and finally be sprayed out from the nozzle 10, thereby effectively protecting the molten pool during the brazing process.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A diamond brazing device using a modified phosphorus-containing nickel-based brazing filler metal, comprising a brazing device body (1), characterized in that: A protective door (2) is hingedly connected to one side of the brazing device body (1), a heating tube (4) is arranged inside the brazing device body (1), a storage rack (3) is slidably installed inside the brazing device body (1), and a protective component is arranged above the storage rack (3); The protection component comprises a nozzle (10) arranged above the storage rack (3); the nozzle (10) is slidably installed inside the brazing device body (1) through an adjustment component; the nozzles (10) are evenly distributed in a circular array; the top of each nozzle (10) is fixedly connected to a third connecting tube (9); each third connecting tube (9) is fixedly installed at the bottom of a second connecting tube (8); an air pump (7) is installed at one end of the second connecting tube (8) away from the third connecting tube (9); a first connecting tube (6) is arranged on one side of the air pump (7); a compressed gas tank (5) is installed at one end of the first connecting tube (6) away from the air pump (7); the compressed gas tank (5) is arranged on the side wall of the brazing device body (1); and a filter component is arranged inside the brazing device body (1).

2. A diamond brazing device using a modified phosphorus-containing nickel-based brazing filler metal according to claim 1, characterized in that: The adjustment assembly comprises a fixed plate (20) fixedly mounted inside the brazing device body (1), the interior of the fixed plate (20) is uniformly provided with second slide grooves (21) in an annular array, the third connecting tube (9) is slidably mounted on the inner wall of the second slide groove (21), a first gear (11) is provided at the top end of the fixed plate (20), the first gear (11) is rotatably mounted inside the brazing device body (1), the interior of the first gear (11) is uniformly provided with first slide grooves (12) in an annular array, and the third connecting tube (9) is slidably mounted inside the first slide groove (12).

3. A diamond brazing device using a modified phosphorus-containing nickel-based brazing filler metal according to claim 2, characterized in that: One side of the first gear (11) is meshedly connected with a second gear (13), a first bevel gear (14) is fixedly mounted on the top of the second gear (13), a second bevel gear (15) is meshedly connected on the top of the first bevel gear (14), a rotating shaft (16) is fixedly mounted on one side of the second bevel gear (15), and a rotating block (17) is fixedly mounted on one end of the rotating shaft (16).

4. A diamond brazing device using a modified phosphorus-containing nickel-based brazing filler metal according to claim 2, characterized in that: The inner wall diameter of the first gear (11) is ten N times the inner wall diameter of the second gear (13), and N is a positive integer.

5. A diamond brazing device using a modified phosphorus-containing nickel-based brazing filler metal according to claim 3, characterized in that: The rotating block (17) is embedded in a receiving groove (18), and the receiving groove (18) is provided on a side wall of a main body (1) of the brazing device.

6. A diamond brazing device using a modified phosphorus-containing nickel-based brazing filler metal according to claim 1, characterized in that: A limiting block (22) is fixedly mounted on the outer wall of the third connecting pipe (9).

7. A diamond brazing device using a modified phosphorus-containing nickel-based brazing filler metal according to claim 1, characterized in that: The top end of the nozzle (10) is fixedly connected to a connection net (19), and the connection net (19) is arranged on the outer wall of the third connection pipe (9).

8. A diamond brazing device using a modified phosphorus-containing nickel-based brazing filler metal according to claim 1, characterized in that: The filter assembly comprises a filter plate (24) arranged inside a brazing device body (1), an exhaust port (25) and a through hole (23) are respectively arranged above and below the filter plate (24), and the exhaust port (25) and the through hole (23) are both opened inside the brazing device body (1).

9. A diamond brazing device using a modified phosphorus-containing nickel-based brazing filler metal according to claim 8, characterized in that: A plurality of filter plates (24) are provided.

10. A method for diamond brazing of a device using a modified phosphorus-containing nickel-based brazing filler metal, the method being applicable to the diamond brazing of a device using a modified phosphorus-containing nickel-based brazing filler metal as claimed in claims 1 to 9, characterized in that: The following steps are involved: S1: During brazing, firstly, diamond abrasive grains, a base material and a nickel-based brazing material containing modified phosphorus are pre-treated and positioned, and then placed on the top of the rack (3); S2: Then, the position at which the nozzle (10) sprays the inert gas is adjusted according to the specifications of the material, and the rotating block (17) is rotated. The rotation of the rotating block (17) drives the rotation of the rotating shaft (16). The rotation of the rotating shaft (16) drives the rotation of the second bevel gear (15). The rotation of the second bevel gear (15) drives the rotation of the first bevel gear (14). The rotation of the first bevel gear (14) drives the rotation of the second gear (13). The rotation of the second gear (13) drives the rotation of the first gear (11). The rotation of the first gear (11) causes the third connecting pipe (9) to slide inside the first slide groove (12), and the movement of the third connecting pipe (9) is limited by the second slide groove (21), so that the plurality of nozzles (10) can be annularly telescopically adjusted to adjust the spray range; S3: Then bend the connecting net (19) to adjust the angle of the nozzle (10); S4: Finally, the protective door (2) is closed, and the interior of the brazing device body (1) is heated by the heating tube (4) to perform brazing. At the same time, the air pump (7) is started to allow the inert gas in the compressed gas tank (5) to enter the third connecting tube (9) through the first connecting tube (6) and the second connecting tube (8), and finally to be sprayed out from the nozzle (10), thereby effectively protecting the molten pool during the brazing process.

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