CN116422998A - Soldering structure and method for solenoid - Google Patents
Soldering structure and method for solenoid Download PDFInfo
- Publication number
- CN116422998A CN116422998A CN202310411268.3A CN202310411268A CN116422998A CN 116422998 A CN116422998 A CN 116422998A CN 202310411268 A CN202310411268 A CN 202310411268A CN 116422998 A CN116422998 A CN 116422998A
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- CN
- China
- Prior art keywords
- brazing
- weldment
- filler metal
- welding piece
- brazing filler
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005476 soldering Methods 0.000 title claims abstract description 8
- 238000005219 brazing Methods 0.000 claims abstract description 66
- 230000005389 magnetism Effects 0.000 claims abstract description 41
- 239000002184 metal Substances 0.000 claims abstract description 40
- 229910052751 metal Inorganic materials 0.000 claims abstract description 40
- 238000003466 welding Methods 0.000 claims abstract description 38
- 239000000945 filler Substances 0.000 claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 229910000679 solder Inorganic materials 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000010953 base metal Substances 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims abstract description 8
- 230000008018 melting Effects 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims description 15
- 238000002955 isolation Methods 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/10—Pipe-lines
Abstract
The invention provides a soldering structure and a soldering method of a solenoid, comprising a weldment base metal, a magnetism isolating ring and solder; the welding piece base material and the magnetism isolating ring form a matching relationship; heating to 500 deg.C for 20min at 500 deg.C, heating to 666 deg.C for 15min at 666 deg.C for 12min, heating to melting point for 22min, heating to 1000 deg.C for 15min, holding for 10min, cooling to 300 deg.C with furnace, and cooling to room temperature with fan; in the invention, the gap fit enables the brazing filler metal to flow in the capillary gap, so that the welding seam is fully filled; the covering structure quantity ensures coaxiality among the first weldment, the second weldment and the magnetism isolating ring; the brazing process is simple to operate, the furnace brazing is finished, the processing efficiency is high, and the production cost is effectively reduced.
Description
Technical Field
The invention relates to the technical field of brazing, in particular to a brazing structure and a brazing method of a solenoid.
Background
In the technical field of hydraulic pressure, valve products need to be connected and sealed by using metals of different materials, and the connection part must have high strength and good tightness, so that the valve products are not leaked and separated when the system operates.
The existing surfacing technology is adopted for the structural design of the solenoid in the market, the surfacing equipment is high in operation difficulty, high in welding equipment cost and inconvenient to use, and the copper-based surfacing metal wear-resistant material is low in hardness and poor in wear resistance and high-temperature creep resistance, is not easy to weld, and is only practical in an environment below 200 ℃.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a brazing structure and a brazing method of a solenoid.
The technical scheme of the invention is as follows: a soldering structure of solenoid includes a weldment base metal, a magnetism isolating ring and solder; the welding piece base material and the magnetism isolating ring form a matching relationship;
wherein the weldment base material comprises a first weldment and a second weldment; the brazing filler metal comprises a first brazing filler metal and a second brazing filler metal; the first welding piece and the second welding piece, and the first brazing filler metal and the second brazing filler metal of the magnetism isolating ring are assembled in a matched mode.
Preferably, the first weldment and the second weldment are both magnetic conductive materials.
Preferably, the magnetism isolating ring is made of a non-magnetic conductive material.
Preferably, the first solder and the second solder are copper-based molding solders.
Preferably, the welding piece base material and the magnetism isolating ring are in clearance fit, and the clearance fit is used for enabling the brazing filler metal to flow in the capillary clearance and fully filling the welding seam.
Preferably, a covering structure exists in the matching relation between the weldment base metal and the magnetism isolating ring; the shielding structure is divided into an outer shielding structure and an inner shielding structure, and the amount of the shielding structure is controlled to be about 1mm so as to ensure the coaxiality between the first weldment, the second weldment and the magnetism isolating ring.
Preferably, the angle between the first welding piece and the matching surface of the magnetism isolating ring is consistent, and the angle between the second welding piece and the matching surface of the magnetism isolating ring is consistent.
Preferably, the present invention also provides a soldering method of a solenoid, including:
after the first welding piece and the second welding piece and the first brazing filler metal and the second brazing filler metal of the magnetism isolating ring are matched and assembled, the welding pieces are placed on a tool, and the following process is carried out:
vacuum degree: maintaining the internal vacuum degree at 0.01Pa;
the heating process comprises the following steps: heating to 500 deg.C at 60min, maintaining at 500 deg.C for 20min, heating to 666 deg.C within 12min, maintaining at 666 deg.C for 15min, heating to melting point temperature within 22min, maintaining at melting point temperature for 20min, heating to 1000 deg.C within 15min, maintaining for 10min, cooling to 300 deg.C with furnace, and cooling to room temperature with fan;
after brazing is completed, performing pressure resistance test, and testing pressure by adopting a manual hydraulic pump; the test pressure is 60MPa, the test time is 5min, and the test workpiece has no leakage and no deformation.
The beneficial effects of the invention are as follows:
1. in the invention, the gap fit enables the brazing filler metal to flow in the capillary gap, so that the welding seam is fully filled; the covering structure quantity ensures coaxiality among the first weldment, the second weldment and the magnetism isolating ring; the brazing process is simple to operate, the furnace brazing is finished, the processing efficiency is high, and the production cost is effectively reduced;
2. the invention is vertically arranged on a tool of the brazing structure through the brazing structure, and the brazing is carried out under the action of a vacuum furnace and protective gas, thereby ensuring the strength and good mechanical property of the parts; the invention adopts the metal material with lower melting point than the base metal as the solder, wets the base metal by using the liquid solder, fills the joint gap, and diffuses mutually in the base metal to realize the linking of the weldment;
drawings
FIG. 1 is an assembly view of a solenoid braze structure of the present invention;
FIG. 2 is an enlarged view of the fit of the solenoid braze structure of the present invention;
FIG. 3 is a schematic structural view of a magnetism isolating ring of the present invention;
in the figure, 1-first weldment, 2-magnetism isolating ring, 3-second weldment, 4-first brazing filler metal and 5-second brazing filler metal.
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
example 1
As shown in fig. 1 to 3, the present embodiment provides a brazing structure of a solenoid, including a weldment base material, a magnetism isolating ring 2, and a brazing filler metal; the welding piece base material and the magnetism isolating ring 2 form a matching relationship;
wherein the weldment base material comprises a first weldment 1 and a second weldment 3; the brazing filler metal comprises a first brazing filler metal 4 and a second brazing filler metal 5; the first welding piece 1 and the second welding piece 3, and the first brazing filler metal 4 and the second brazing filler metal 5 of the magnetism isolating ring 2 are assembled in a matched mode. Preferably, the first weldment 1 and the second weldment 3 are both made of magnetic conductive materials.
Preferably, in this embodiment, the magnetism isolating ring 2 is made of a non-magnetic conductive material.
As a preferred embodiment, the first solder 4 and the second solder 5 are copper-based molding solders.
In this embodiment, the welding base metal and the magnetism isolating ring 2 are preferably in a clearance fit, and the clearance fit is used for allowing the brazing filler metal to flow in the capillary gap and fully fill the welding seam.
As a preferable mode of the embodiment, a covering structure exists in the matching relation between the weldment base material and the magnetism isolating ring 2; the shielding structure is divided into an outer shielding structure and an inner shielding structure, and the amount of the shielding structure is controlled to be about 1mm so as to ensure the coaxiality between the first weldment 1, the second weldment 3 and the magnetism isolating ring 2.
As a preferable example, the angle between the first weldment 1 and the matching surface of the magnetism isolating ring 2 is consistent, and the angle between the second weldment 3 and the matching surface of the magnetism isolating ring 2 is consistent.
During assembly, the matched surface of the first weldment 1 is coated with brazing filler metal, then the magnetism isolating ring 2 is installed in the first weldment 1, the matched surface of the second weldment 3 is coated with brazing filler metal, then the second weldment 3 is installed in the magnetism isolating ring 2, and finally the assembled parts are vertically placed in a brazing tool.
Example 2
The present embodiment provides a soldering method of a solenoid, including:
after the first weldment 1 and the second weldment 3, the first brazing filler metal 4 of the magnetism isolation ring 2 and the second brazing filler metal 5 are matched and assembled, the welding parts are placed on a tool, and brazing is carried out under the action of a vacuum furnace and protective gas, and the process conditions are as follows:
vacuum degree: maintaining the internal vacuum degree at 0.01Pa;
the heating process comprises the following steps: heating to 500 deg.C at 60min, maintaining at 500 deg.C for 20min, heating to 666 deg.C within 12min, maintaining at 666 deg.C for 15min, heating to melting point temperature within 22min, maintaining at melting point temperature for 20min, heating to 1000 deg.C within 15min, maintaining for 10min, cooling to 300 deg.C with furnace, and cooling to room temperature with fan;
after brazing is finished, checking whether the outer surface and the inner surface of the master batch have solder overflow phenomenon or not; then, performing pressure resistance test, and testing pressure by adopting a manual hydraulic pump; the test pressure is 60MPa, the test time is 5min, and the test workpiece has no leakage and no deformation.
The foregoing embodiments and description have been provided merely to illustrate the principles and best modes of carrying out the invention, and various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A soldering structure of a solenoid comprises a weldment base metal, a magnetism isolating ring (2) and solder; the method is characterized in that: the welding piece base material and the magnetism isolating ring (2) form a matching relationship;
wherein the weldment base material comprises a first weldment (1) and a second weldment (3); the brazing filler metal comprises a first brazing filler metal (4) and a second brazing filler metal (5); the welding machine is characterized in that the first welding piece (1) and the second welding piece (3), the first brazing filler metal (4) of the magnetism isolation ring (2) and the second brazing filler metal (5) are assembled in a matched mode, during assembly, the matched surface of the first welding piece (1) is coated with brazing filler metal, then the magnetism isolation ring (2) is arranged in the first welding piece (1), the matched surface of the second welding piece (3) is coated with brazing filler metal, then the second welding piece (3) is arranged in the magnetism isolation ring (2), and finally the assembled part is vertically arranged in a brazing tool.
2. A brazing structure for a solenoid according to claim 1, wherein: the first weldment (1) and the second weldment (3) are made of magnetic conductive materials.
3. A brazing structure for a solenoid according to claim 1, wherein: the magnetism isolating ring (2) is made of non-magnetic conductive materials.
4. A brazing structure for a solenoid according to claim 1, wherein: the first brazing filler metal (4) and the second brazing filler metal (5) are copper-based forming brazing.
5. A brazing structure for a solenoid according to claim 1, wherein: the welding piece base metal is in clearance fit with the magnetism isolating ring (2), and the clearance fit is used for enabling brazing filler metal to flow in a capillary clearance and fully filling a welding seam.
6. A brazing structure for a solenoid according to claim 1, wherein: and a covering structure exists in the matching relation between the weldment parent metal and the magnetism isolating ring (2).
7. A brazing structure for a solenoid according to claim 6, wherein: the shielding structure is divided into an outer shielding structure and an inner shielding structure, and the amount of the shielding structure is controlled to be about 1mm so as to ensure the coaxiality between the first weldment (1), the second weldment (3) and the magnetism isolating ring (2).
8. A brazing structure for a solenoid according to claim 1, wherein: the angle of the matching surface of the first welding piece (1) and the magnetism isolating ring (2) is consistent, and the angle of the matching surface of the second welding piece (3) and the magnetism isolating ring (2) is consistent.
9. A method of brazing a solenoid, wherein the method is used for the brazed structure of any one of claims 1 to 8, comprising:
the method comprises the steps of matching and assembling a first welding piece (1) with a second welding piece (3), a first brazing filler metal (4) of a magnetism isolation ring (2) with a second brazing filler metal (5), wherein during assembling, the matched surface of the first welding piece (1) is coated with the brazing filler metal, then the magnetism isolation ring (2) is arranged in the first welding piece (1), the matched surface of the second welding piece (3) is coated with the brazing filler metal, then the second welding piece (3) is arranged in the magnetism isolation ring (2), and finally the assembled part is vertically arranged in a brazing tool; and the following processes are carried out:
vacuum degree: maintaining the internal vacuum degree at 0.01Pa;
the heating process comprises the following steps: heating to 500 deg.C at 60min, maintaining at 500 deg.C for 20min, heating to 666 deg.C within 12min, maintaining at 666 deg.C for 15min, heating to melting point temperature within 22min, maintaining at melting point temperature for 20min, heating to 1000 deg.C within 15min, maintaining for 10min, cooling to 300 deg.C with furnace, and cooling to room temperature with fan;
after brazing is finished, checking whether the outer surface and the inner surface of the master batch have solder overflow phenomenon or not; then, performing pressure resistance test, and testing pressure by adopting a manual hydraulic pump; the test pressure is 60MPa, the test time is 5min, and the test workpiece has no leakage and no deformation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310411268.3A CN116422998A (en) | 2023-04-18 | 2023-04-18 | Soldering structure and method for solenoid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310411268.3A CN116422998A (en) | 2023-04-18 | 2023-04-18 | Soldering structure and method for solenoid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116422998A true CN116422998A (en) | 2023-07-14 |
Family
ID=87085140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310411268.3A Pending CN116422998A (en) | 2023-04-18 | 2023-04-18 | Soldering structure and method for solenoid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116422998A (en) |
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2023
- 2023-04-18 CN CN202310411268.3A patent/CN116422998A/en active Pending
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