CN106735831B - A kind of diffusion welding method of ball bottle structure - Google Patents
A kind of diffusion welding method of ball bottle structure Download PDFInfo
- Publication number
- CN106735831B CN106735831B CN201611166159.6A CN201611166159A CN106735831B CN 106735831 B CN106735831 B CN 106735831B CN 201611166159 A CN201611166159 A CN 201611166159A CN 106735831 B CN106735831 B CN 106735831B
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- China
- Prior art keywords
- welding
- ball bottle
- assembly
- ball
- burner hearth
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Classifications
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
- B23K20/028—Butt welding
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/14—Preventing or minimising gas access, or using protective gases or vacuum during welding
Abstract
The invention discloses a kind of diffusion welding methods of ball bottle structure, comprising the following steps: a, production component；B, welding pretreatment；C, shove charge: ball bottle sub-assembly is put into the welding burner hearth of vacuum diffusion welding machine, and stacking is neat；D, Diffusion Welding；E, cooling, pickup；F, it finishes.The present invention has the characteristics that improve welding quality and improves welding efficiency.
Description
Technical field
The present invention relates to a kind of diffusion welding method, especially a kind of diffusion welding method of ball bottle structure.
Background technique
Plunger hydraulic pump/motor is the precision element that energy conversion is realized by hydraulic oil liquid, in energy conversion process,
Rotor rotates a circle, and can generate the variation of oil liquid pressure, in order to reduce oil liquid pressure variation bring adverse effect, specially designs
A kind of structure, the structure are called spherical surge flask because it is with oil liquid pressure variation buffer function.Spherical surge flask is because of it
The particularity of structure cannot need to be aided with welding method to realize the structure, be usually at present by being machined one-pass molding
It is fetched and is welded using electron beam welding, but its welding quality unstable of existing electron beam welding and low efficiency.
Summary of the invention
The object of the present invention is to provide a kind of diffusion welding methods of ball bottle structure.It has improve welding quality with
And the characteristics of improving welding efficiency.
A kind of technical solution of the present invention: diffusion welding method of ball bottle structure, comprising the following steps:
A, component is made: production ball bottle welding assembly and fixture component；
Ball bottle welding assembly in the step a includes two hemisphere, and hemisphere is equipped with welding load circle convex platform；
Fixture component in the step a is sleeve tooling, and sleeve tooling end, which is equipped with, loads circle convex platform phase with welding
Corresponding welding loads ring groove；
B, welding pretreatment: pre-welding treatment is carried out to the face of weld of ball bottle welding assembly, then the ball bottle after the completion of processing is welded
Relay part is assembled with fixture component, forms ball bottle sub-assembly；
C, shove charge: ball bottle sub-assembly is put into the welding burner hearth of vacuum diffusion welding machine, and stacking is neat；
D, Diffusion Welding；
E, cooling, pickup:
F, it finishes: outer dimension processing being carried out to the ball bottle blank after the completion of welding, obtains ball bottle finished product.
In a kind of diffusion welding method of ball bottle structure above-mentioned, Diffusion Welding in the step d the following steps are included:
(1), vacuum diffusion welding machine is welded into the vacuum degree control in burner hearth 1.0 × 10-3~1.0 × 10-4The range of Pa
It is interior；
(2), within 35~40 minutes time, the temperature welded in burner hearth is uniformly risen to 800~840 from room temperature
℃；Meanwhile after the temperature in welding burner hearth reaches 380~420 DEG C, the top board in control welding burner hearth is to ball bottle sub-assembly
Load operations are carried out, pressure value is maintained at 0.4~0.6Kgf/mm2, the time is 8~12 minutes；
(3), during temperature uniformly rises to 800~840 DEG C, adjustment welding pressure reaches 1.1~
1.3Kgf/mm2；
(4), the temperature in welding burner hearth is 800~840 DEG C, welding pressure is 1.1~1.3Kgf/mm2Under conditions of,
Ball bottle sub-assembly is welded, weld interval is maintained at 80~100 minutes.
In a kind of diffusion welding method of ball bottle structure above-mentioned, cooling, pickup in the step e include following step
It is rapid:
1), filling high pure nitrogen makes to weld the temperature decline in burner hearth；
2), when the temperature in welding burner hearth drops to 140~160 DEG C, top board is shed to ball
The load of bottle sub-assembly, and promote top board；
3), when temperature drops to 50~70 DEG C, dropping valve is opened；
4) fire door for, opening welding burner hearth, takes out the ball bottle blank being welded.
In a kind of diffusion welding method of ball bottle structure above-mentioned, the basis material of the hemisphere is 40CrNiMoA.
In a kind of diffusion welding method of ball bottle structure above-mentioned, the basis material of the sleeve tooling is BG801.
The face of weld to ball bottle welding assembly in a kind of diffusion welding method of ball bottle structure above-mentioned, in the step b
Carrying out pre-welding treatment includes gasoline oil removing and acid pickling and rust removing.
In a kind of diffusion welding method of ball bottle structure above-mentioned, the installation step of ball bottle sub-assembly is in the step b,
A hemisphere is first put into sleeve tooling, then another hemisphere is docked with the hemisphere placed, then with an other sleeve work
On the hemisphere that dress is put after being buckled in, that is, complete the assembly of ball bottle sub-assembly.
In a kind of diffusion welding method of ball bottle structure above-mentioned, polytrope is equipped in the welding burner hearth in the step c
Bottle sub-assembly, graphite paper is equipped between neighbouring ball bottle sub-assembly.
Non-solder contact in a kind of diffusion welding method of ball bottle structure above-mentioned, between the sleeve tooling and hemisphere
Position also is provided with graphite paper.
Compared with prior art, the present invention on ball bottle welding assembly by being arranged welding load circle convex platform, and welds
Load anchor ring with weld it is as anchor ring size shape and coaxial, in order to the load and welding of ball bottle welding assembly, and by ball
Bottle welding assembly is assembled with having the sleeve tooling of welding load ring groove, and thus facilitating vacuum diffusion welding machine will
Power acts in welding load circle convex platform, to realize that the welding between welding anchor ring squeezes, enables two welding anchor rings
Enough closely fittings, and two ball bottle welding assemblies to be welded will not move, and guarantee the quality of welding；Meanwhile it welding
Connecing can pile up stacking between sub-assembly up and down, so that multiple welding sub-assemblies can be once placed in welding burner hearth, to make
Multiple ball bottles can once be welded by obtaining vacuum diffusion welding machine, improve welding efficiency；In addition, neighbouring ball bottle sub-assembly it
Between graphite paper is set, prevent welding be engaged.The present invention is made by the welding parameter and welding step of the specific Diffusion Welding of control
Obtaining finally obtained ball bottle finished product has good welding quality, and reliable and stable.Before ball bottle welding assembly is welded
Processing is merged conducive to welding material with the material of welding surface so that ball bottle welding assembly welding surface keeps clean and tidy, improves weldering
Connect quality.In conclusion the present invention has the characteristics that improve welding quality and improves welding efficiency.
Detailed description of the invention
Fig. 1 is ball bottle sub-assembly welding schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of A hemisphere；
Fig. 3 is the structural schematic diagram of B hemisphere；
Fig. 4 is the structural schematic diagram of ball bottle finished product of the present invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples, but not as the foundation limited the present invention.
Embodiment 1.A kind of diffusion welding method of ball bottle structure is constituted as shown in Figures 1 to 4, comprising the following steps:
A, component is made: production ball bottle welding assembly and fixture component；
B, welding pretreatment: pre-welding treatment is carried out to the face of weld of ball bottle welding assembly, then the ball bottle after the completion of processing is welded
Relay part is assembled with fixture component, forms ball bottle sub-assembly；
C, shove charge: ball bottle sub-assembly is put into the welding burner hearth of vacuum diffusion welding machine, and stacking is neat；
D, Diffusion Welding: the following steps are included:
(1), vacuum diffusion welding machine is welded into the vacuum degree control in burner hearth 1.0 × 10-3~1.0 × 10-4The range of Pa
It is interior；
(2), within 35~40 minutes time, the temperature welded in burner hearth is uniformly risen to 800~840 from room temperature
℃；Meanwhile after the temperature in welding burner hearth reaches 380~420 DEG C, top board in the welding burner hearth of vacuum diffusion welding machine is controlled
Load operations are carried out to ball bottle sub-assembly, pressure value is maintained at 0.4~0.6Kgf/mm2, the time is 8~12 minutes；
(3), during temperature uniformly rises to 800~840 DEG C, adjustment welding pressure reaches 1.1~
1.3Kgf/mm2；
(4), the temperature in welding burner hearth is 800~840 DEG C, welding pressure is 1.1~1.3Kgf/mm2Under conditions of,
Ball bottle sub-assembly is welded, weld interval is maintained at 80~100 minutes.
E, cooling, pickup: the following steps are included:
1), filling high pure nitrogen makes to weld the temperature decline in burner hearth；
2), when the temperature in welding burner hearth drops to 140~160 DEG C, top board is shed to the load of ball bottle sub-assembly, and
Promote top board；
3), when temperature drops to 50~70 DEG C, dropping valve is opened；
4) fire door for, opening welding burner hearth, takes out the ball bottle blank being welded；
F, it finishes: outer dimension processing being carried out to ball bottle blank, obtains ball bottle finished product.
Ball bottle welding assembly in the step a includes two hemisphere, and hemisphere is equipped with welding load circle convex platform.It is described
The basis material of hemisphere is 40CrNiMoA.
Fixture component in the step a is sleeve tooling, and sleeve tooling end, which is equipped with, loads circle convex platform phase with welding
Corresponding welding loads ring groove.The basis material of the sleeve tooling is BG801.
It includes gasoline oil removing and acid pickling and rust removing that the face of weld to ball bottle welding assembly in the step b, which carries out pre-welding treatment,.
The installation step of ball bottle sub-assembly is in the step b, and a hemisphere is first put into sleeve tooling, then by another hemisphere with place
Hemisphere docked, then on the hemisphere put after being buckled in an other sleeve tooling, that is, complete the assembly of ball bottle sub-assembly.Institute
It states and is equipped with multilayer ball bottle sub-assembly in the welding burner hearth in step c, be equipped with graphite paper between neighbouring ball bottle sub-assembly and (remove
The position of two and half ball bondings, other non-solder contacts site are separated with graphite paper), prevent welding to be engaged.The sleeve tooling
Non-solder contact site between hemisphere also is provided with graphite paper.
Embodiment 2.A kind of diffusion welding method of ball bottle structure is constituted as shown in Figure 1 to Figure 3, comprising the following steps:
A, component is made: production ball bottle welding assembly and fixture component；
B, welding pretreatment: pre-welding treatment is carried out to the face of weld of ball bottle welding assembly, then the ball bottle after the completion of processing is welded
Relay part is assembled with fixture component, forms ball bottle sub-assembly；
C, shove charge: ball bottle sub-assembly is put into the welding burner hearth of vacuum diffusion welding machine, and stacking is neat；
D, Diffusion Welding: the following steps are included:
(1), vacuum diffusion welding machine is welded into the vacuum degree control in burner hearth 1.0 × 10-3~1.0 × 10-4The range of Pa
It is interior；
(2), within 35~40 minutes time, the temperature welded in burner hearth is uniformly risen to 820 DEG C from room temperature；Together
When, after the temperature in welding burner hearth reaches 400 DEG C, controls top board in the welding burner hearth of vacuum diffusion welding machine and ball bottle is combined
Part carries out load operations, and pressure value is maintained at 0.5Kgf/mm2, the time is 10 minutes；
(3), during temperature uniformly rises to 820 DEG C, adjustment welding pressure reaches 1.2Kgf/mm2；
(4), welding burner hearth in temperature be 820 DEG C, welding pressure 1.2Kgf/mm2Under conditions of, ball bottle is combined
Part is welded, and weld interval is maintained at 90 minutes.
E, cooling, pickup: the following steps are included:
1), filling high pure nitrogen makes to weld the temperature decline in burner hearth；
2), when the temperature in welding burner hearth drops to 150 DEG C, top board is shed to the load of ball bottle sub-assembly, and promoted
Top board；
3), when temperature drops to 60 DEG C, dropping valve is opened；
4) fire door for, opening welding burner hearth, takes out the ball bottle blank being welded；
F, it finishes: outer dimension processing being carried out to ball bottle blank, obtains ball bottle finished product.
Ball bottle welding assembly in the step a includes two hemisphere, and hemisphere is equipped with welding load circle convex platform.
The basis material of the hemisphere is 40CrNiMoA.
Fixture component in the step a is sleeve tooling, and sleeve tooling end, which is equipped with, loads circle convex platform phase with welding
Corresponding welding loads ring groove.
The basis material of the sleeve tooling is BG801.
It includes gasoline oil removing and acid pickling and rust removing that the face of weld to ball bottle welding assembly in the step b, which carries out pre-welding treatment,.
The installation step of ball bottle sub-assembly is in the step b, and a hemisphere is first put into sleeve tooling, then by another hemisphere
It is docked with the hemisphere placed, then on the hemisphere put after being buckled in an other sleeve tooling, i.e. completion ball bottle sub-assembly
Assembly.
It is equipped with multilayer ball bottle sub-assembly in welding burner hearth in the step c, is set between neighbouring ball bottle sub-assembly
There is graphite paper (except the position of two and half ball bondings, other non-solder contacts site are separated with graphite paper), welding is prevented to be engaged.Institute
The non-solder contact site stated between sleeve tooling and hemisphere also is provided with graphite paper.Non-solder contact site refers to sleeve tooling
Contact surface between hemisphere.
The high pure nitrogen refers to that the purity of nitrogen is greater than 99.999%.
The working principle of the invention: all parts, including A hemisphere and B hemisphere (matrix material are made according to drawing specification respectively
Material are as follows: 40CrNiMoA), sleeve tooling (basis material BG801)；Before the annular face of weld of A, B hemisphere processed is welded
It handles (gasoline oil removing, acid pickling and rust removing), then is assembled and (A hemisphere is put into sleeve tooling, by B hemisphere and A hemisphere pair
It connects, then is buckled on B hemisphere with another sleeve tooling)；The ball bottle sub-assembly assembled is put into the weldering of vacuum diffusion welding machine
It connects in burner hearth, each ball bottle sub-assembly stacking is neat, and according to the difference of ball bottle size, every layer is put 2~5 ball bottle groups
Component puts 2~3 layers, as shown in Figure 1, adjacent ball bottle sub-assembly is separated with graphite paper between layers；It is diffused weldering again
It connects: when equipment vacuum degree is 1.0 × 10-3~1.0 × 10-4Pa carries out burner hearth heating and pressure process according to the following two stage
Control: making in-furnace temperature uniformly rise to 820 DEG C from room temperature in 35~40 minutes, while upper pressure in vacuum welding equipment furnace
Plate after temperature reaches 400 DEG C, keeps 0.5Kgf/mm to the downward pressure of sub-assembly2Pressure 10 minutes；Uniformly rise in temperature
During 820 DEG C, adjustment welding pressure reaches 1.2Kgf/mm2, it is welded on 820 DEG C and welding pressure 1.2Kgf/mm2
Under conditions of kept for 90 minutes；Preferably cooling, pickup: filling high pure nitrogen declines in-furnace temperature, cools to 150 DEG C or so and unloads
It goes top board load and promotes top board, to take out the sub-assembly being welded, drop is opened when temperature drops to 60 DEG C or so
Pressure valve opens fire door and takes out the ball bottle blank welded；Outer dimension is carried out to the ball bottle test specimen being welded according to ball bottle structure to add
Work, to obtain the ball bottle finished product of needs.
By the way that this welding supplementary structure of welding load circle convex platform is arranged on A, B hemisphere, to realize Diffusion Welding
Welding pressure condition between welding surface, as shown in Figure 2；Sleeve tool structure is as shown in Figure 1, pass through setting welding load annulus
Groove is matched with the welding load circle convex platform on A, B hemisphere, achieves that the entire welding to hemisphere in the welding process
The boss face for loading circle convex platform conducts welding pressure.
Claims (8)
1. a kind of diffusion welding method of ball bottle structure, it is characterised in that: the following steps are included:
A, component is made: production ball bottle welding assembly and fixture component；
Ball bottle welding assembly in the step a includes two hemisphere, and welding load circle convex platform is equipped on each hemisphere；
Fixture component in the step a is sleeve tooling, and sleeve tooling end is equipped with opposite with welding load circle convex platform
The welding load ring groove answered；
B, welding pretreatment: pre-welding treatment is carried out to the face of weld of ball bottle welding assembly, then to the ball bottle weld part after the completion of processing
Part is assembled with fixture component, forms ball bottle sub-assembly；
C, shove charge: ball bottle sub-assembly is put into the welding burner hearth of vacuum diffusion welding machine, and stacking is neat；
D, Diffusion Welding；
E, cooling, pickup；
F, it finishes: outer dimension processing being carried out to the ball bottle blank after the completion of welding, obtains ball bottle finished product；
Diffusion Welding in the step d the following steps are included:
(1), vacuum diffusion welding machine is welded into the vacuum degree control in burner hearth 1.0 × 10-3~1.0 × 10-4In the range of Pa；
(2), within 35~40 minutes time, the temperature welded in burner hearth is uniformly risen to 800~840 DEG C from room temperature；Together
When, after the temperature in welding burner hearth reaches 380~420 DEG C, the top board in control welding burner hearth carries out ball bottle sub-assembly
Load operations, pressure value are maintained at 0.4~0.6Kgf/mm2, the time is 8~12 minutes；
(3), during temperature uniformly rises to 800~840 DEG C, adjustment welding pressure reaches 1.1~1.3Kgf/
mm2；
(4), the temperature in welding burner hearth is 800~840 DEG C, welding pressure is 1.1~1.3Kgf/mm2Under conditions of, to ball
Bottle sub-assembly is welded, and weld interval is maintained at 80~100 minutes.
2. a kind of diffusion welding method of ball bottle structure according to claim 1, it is characterised in that: in the step e
Cooling, pickup the following steps are included:
1), filling high pure nitrogen makes to weld the temperature decline in burner hearth；
2), when the temperature in welding burner hearth drops to 140~160 DEG C, top board is shed to the load of ball bottle sub-assembly, and promoted
Top board；
3), when temperature drops to 50~70 DEG C, dropping valve is opened；
4) fire door for, opening welding burner hearth, takes out the ball bottle blank being welded.
3. a kind of diffusion welding method of ball bottle structure according to claim 1, it is characterised in that: the matrix of the hemisphere
Material is 40CrNiMoA.
4. a kind of diffusion welding method of ball bottle structure according to claim 1, it is characterised in that: the sleeve tooling
Basis material is BG801.
5. a kind of diffusion welding method of ball bottle structure according to claim 1, it is characterised in that: in the step b
Carrying out pre-welding treatment to the face of weld of ball bottle welding assembly includes gasoline oil removing and acid pickling and rust removing.
6. a kind of diffusion welding method of ball bottle structure according to claim 1, it is characterised in that: ball in the step b
The installation step of bottle sub-assembly is a hemisphere to be first put into sleeve tooling, then another hemisphere carried out with the hemisphere placed pair
It connects, then on the hemisphere put after being buckled in another sleeve tooling, that is, completes the assembly of ball bottle sub-assembly.
7. a kind of diffusion welding method of ball bottle structure according to claim 1, it is characterised in that: in the step c
Welding burner hearth in be equipped with multilayer ball bottle sub-assembly, graphite paper is equipped between neighbouring ball bottle sub-assembly.
8. a kind of diffusion welding method of ball bottle structure according to any one of claim 1 to 7, it is characterised in that: institute
The non-solder contact site stated between sleeve tooling and hemisphere also is provided with graphite paper.
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| CN201611166159.6A CN106735831B (en) | 2016-12-16 | 2016-12-16 | A kind of diffusion welding method of ball bottle structure |
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| CN201611166159.6A CN106735831B (en) | 2016-12-16 | 2016-12-16 | A kind of diffusion welding method of ball bottle structure |
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| CN106735831B true CN106735831B (en) | 2019-03-01 |
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| CN111136374B (en) * | 2020-01-03 | 2021-12-21 | 中航力源液压股份有限公司 | Isolation method for vacuum diffusion welding |
| CN112276331B (en) * | 2020-10-16 | 2022-03-15 | 中国航发四川燃气涡轮研究院 | Welding method for double-spoke-plate turbine disk |
| CN113305494B (en) * | 2021-06-11 | 2023-03-14 | 贵州永红航空机械有限责任公司 | Special positioning and rotating welding tool and welding method for bobbin assembly |
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| CN106735831A (en) | 2017-05-31 |
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