CN109048100A - A method of machining box body tin silver copper welding - Google Patents
A method of machining box body tin silver copper welding Download PDFInfo
- Publication number
- CN109048100A CN109048100A CN201810830235.1A CN201810830235A CN109048100A CN 109048100 A CN109048100 A CN 109048100A CN 201810830235 A CN201810830235 A CN 201810830235A CN 109048100 A CN109048100 A CN 109048100A
- Authority
- CN
- China
- Prior art keywords
- box body
- welding
- 30pin
- needle stand
- tin
- 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
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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a kind of methods of machining box body tin silver copper welding, include the following steps: S1, sorting: choose appearance no marking, notch 60061-T6 box body, 30PIN needle stand and Kovar outlet conduit；S2, preparation: when being filled with 2.5Mpa high-pressure helium inside motor housing, sealing position is sealed using metal o-ring or c-type sealing ring, whole leak rate≤2.9 × 10-9Pam3/s；S3, contact pin: 30PIN needle stand is welded by tin-silver-copper solder and is welded with box body, and by box body Entire nickel coating, outlet conduit is gold-plated；S4, examine needle stand: (standard MIL-STD883 Method 1018 needs to meet: RGA 5000PPMV), meeting 200 plugs, is unable to embrittlement, leakage by 30PIN needle pedestal and fiber outlet welding airtightness requirement 1*10-9.Compared with other welding techniques, technical price is cheap, technical maturity, can resist stress, uses the degree of protection for improving tin silver copper welding, the use quality of the needle stand after greatly improving welding.
Description
Technical field
The present invention relates to motor needle stand welding procedures, and more specifically more particularly to a kind of machining box body tin silver copper is welded
The method connect.
Background technique
Tin-silver-copper solder is widely used as electronic package interconnections material to be applied in electronic product, to substitute pair
The harmful solder containing pb of environment.However, the raising of electronic product packaging density and the reduction of welding spot size are to solder products with varying degrees
More stringent requirements are proposed for intensity.When the method for the universal raising tin-silver-copper solder of former be added in tin-silver-copper solder it is micro-
Little particle is realized by the dispersion-strengthened effect of molecule and is strengthened.Studies have shown that nano particle has more compared with micron particles
Apparent strengthening effect, therefore obtained widely paying close attention to.Currently, the nano particle for strengthening tin-silver-copper solder mainly has
The non pinetallic nanos particle such as the metal nanoparticles such as Ag, Al, Mo, Co, Ni and TiO2, Al2O3.But existing machining
Used welding material, is not easy to form reliable interface, the intensity and thermal fatigue resistance of butt welding point are unfavorable, remove when using welding
Except this, in soldering paste class product, the mismatch of nano particle and Tin Silver Copper Alloy on physics and chemical property will lead to nanometer
Particle is largely lost in solder reflow process with scaling powder, for this purpose, it is proposed that a kind of machining box body tin silver copper was welded
Method.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of machining box body tin silver proposed
The method that brazing connects.
To achieve the above object, the invention provides the following technical scheme: it is a kind of machining box body tin silver copper welding method,
Include the following steps:
S1, sorting: choose appearance no marking, notch 60061-T6 box body, 30PIN needle stand and Kovar outlet are led
Pipe；
S2, preparation: when being filled with 2.5Mpa high-pressure helium inside motor housing, sealing position uses metal o-ring or c-type
Sealing ring sealing, whole leak rate≤2.9 × 10-9Pam3/s；
S3, contact pin: 30PIN needle stand being welded by tin-silver-copper solder and is welded with box body, and by box body Entire nickel coating,
Outlet conduit is gold-plated；
S4, examine needle stand: 30PIN needle pedestal and fiber outlet welding airtightness require 1*10-9 (standard MIL-
STD883Method 1018 needs to meet: RGA 5000PPMV), meet 200 plugs, is unable to embrittlement, leakage；
S5, it uses detection: after motor housing is assembled in complete machine, repeatedly carrying out following environmental test together with complete machine,
There is not allowed that leakage, meets in -5 ° to 65 ° use environments after test.
Preferably, in gap of the fill solder between pedestal and box body, without excessive, 30PIN connects smooth solder after welding
Plug-in unit needs sealing welding, guarantees air-tightness.
Preferably, in gap of the fill solder between outlet guide hole and box body, smooth solder is without excessive after welding, out
Fine mouth guide hole and box body need sealing welding, guarantee air-tightness.
Preferably, the size of conduit is diameter 6.5mm, and length 8.2mm, the size of socket is length and width 33.7*7.5mm,
Depth is 5.1mm.
Technical effect and advantage of the invention:
1, the insulation resistance between contact pin and shell >=200M Ω；Contact pin has good electric conductivity；The ruler of male portion
Very little and tolerance strictly meets drawing requirement；Strength of glass at sintering meets 200 plugs, will not generate embrittlement, leakage；Outside motor
Bearing chamber structure is influenced by bearing size at the top of shell, and the later period allows to do appropriate size adjustment (outer diameterInternal diameterHole).
2, simple production process, it is with short production cycle, it improves work efficiency, has significant improvement to original welding production technology
With significantly improve, worth industry is widelyd popularize.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, shall fall within the protection scope of the present invention.
Embodiment
A method of machining box body tin silver copper welding includes the following steps:
S1, sorting: choose appearance no marking, notch 60061-T6 box body, 30PIN needle stand and Kovar outlet are led
Pipe；
S2, preparation: when being filled with 2.5Mpa high-pressure helium inside motor housing, sealing position uses metal o-ring or c-type
Sealing ring sealing, whole leak rate≤2.9 × 10-9Pam3/s；
S3, contact pin: 30PIN needle stand being welded by tin-silver-copper solder and is welded with box body, and by box body Entire nickel coating,
Outlet conduit is gold-plated；
S4, examine needle stand: 30PIN needle pedestal and fiber outlet welding airtightness require 1*10-9 (standard MIL-
STD883Method 1018 needs to meet: RGA 5000PPMV), meet 200 plugs, is unable to embrittlement, leakage；
S5, it uses detection: after motor housing is assembled in complete machine, repeatedly carrying out following environmental test together with complete machine,
There is not allowed that leakage, meets in -5 ° to 65 ° use environments after test.
In summary: a kind of method of machining box body tin silver copper welding provided by the invention, with other welding technique phases
, technical maturity cheaper than, technical price, can resist stress, use the degree of protection for improving tin silver copper welding, greatly improve welding
The use quality of needle stand afterwards.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (4)
1. a kind of method of machining box body tin silver copper welding, characterized by the following steps:
S1, sorting: choose appearance no marking, notch 60061-T6 box body, 30PIN needle stand and Kovar outlet conduit；
S2, preparation: when being filled with 2.5Mpa high-pressure helium inside motor housing, sealing position is sealed using metal o-ring or c-type
Circle sealing, whole leak rate≤2.9 × 10-9Pam3/s；
S3, contact pin: 30PIN needle stand being welded by tin-silver-copper solder and is welded with box body, and by box body Entire nickel coating, fiber
Mouth conduit is gold-plated；
S4, examine needle stand: 30PIN needle pedestal and fiber outlet welding airtightness require 1*10-9 (standard MIL-
STD883Method 1018 needs to meet: RGA 5000PPMV), meet 200 plugs, is unable to embrittlement, leakage；
S5, it uses detection: after motor housing is assembled in complete machine, repeatedly carrying out following environmental test together with complete machine, test
Afterwards there is not allowed that leakage, meets in -5 ° to 65 ° use environments.
2. a kind of method of machining box body tin silver copper welding according to claim 1, it is characterised in that: fill solder exists
In gap between pedestal and box body, for smooth solder without excessive, 30PIN connector needs sealing welding after welding, guarantees airtight
Property.
3. a kind of method of machining box body tin silver copper welding according to claim 1, it is characterised in that: fill solder exists
In gap between outlet guide hole and box body, for smooth solder without excessive, outlet guide hole and box body need sealing welding after welding
It connects, guarantees air-tightness.
4. a kind of method of machining box body tin silver copper welding according to claim 1, it is characterised in that: the size of conduit
For diameter 6.5mm, length 8.2mm, the size of socket is length and width 33.7*7.5mm, depth 5.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810830235.1A CN109048100A (en) | 2018-07-24 | 2018-07-24 | A method of machining box body tin silver copper welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810830235.1A CN109048100A (en) | 2018-07-24 | 2018-07-24 | A method of machining box body tin silver copper welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109048100A true CN109048100A (en) | 2018-12-21 |
Family
ID=64835371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810830235.1A Pending CN109048100A (en) | 2018-07-24 | 2018-07-24 | A method of machining box body tin silver copper welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109048100A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1521074A (en) * | 1974-10-04 | 1978-08-09 | Du Pont Nederland | Circuit board pins and to fixing thereof to a circuit boa-rd |
| US20130127041A1 (en) * | 2011-11-22 | 2013-05-23 | Stmicroelectronics Pte Ltd. | Ball grid array to pin grid array conversion |
| CN103752969A (en) * | 2013-09-10 | 2014-04-30 | 中普天诚(天津)科技有限公司 | Tin ring fusion welding process for socket |
| CN204596774U (en) * | 2015-03-23 | 2015-08-26 | 合肥圣达电子科技实业公司 | A kind of aluminum-based packaging composite material assembly soldering housing |
| CN205140942U (en) * | 2015-10-30 | 2016-04-06 | 蚌埠兴创电子科技有限公司 | Metal encapsulation shell |
| US9579741B2 (en) * | 2014-07-21 | 2017-02-28 | Samsung Electronics Co., Ltd. | Apparatus for adsorbing solder ball and method of attaching solder ball using the same |
-
2018
- 2018-07-24 CN CN201810830235.1A patent/CN109048100A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1521074A (en) * | 1974-10-04 | 1978-08-09 | Du Pont Nederland | Circuit board pins and to fixing thereof to a circuit boa-rd |
| US20130127041A1 (en) * | 2011-11-22 | 2013-05-23 | Stmicroelectronics Pte Ltd. | Ball grid array to pin grid array conversion |
| CN103752969A (en) * | 2013-09-10 | 2014-04-30 | 中普天诚(天津)科技有限公司 | Tin ring fusion welding process for socket |
| US9579741B2 (en) * | 2014-07-21 | 2017-02-28 | Samsung Electronics Co., Ltd. | Apparatus for adsorbing solder ball and method of attaching solder ball using the same |
| CN204596774U (en) * | 2015-03-23 | 2015-08-26 | 合肥圣达电子科技实业公司 | A kind of aluminum-based packaging composite material assembly soldering housing |
| CN205140942U (en) * | 2015-10-30 | 2016-04-06 | 蚌埠兴创电子科技有限公司 | Metal encapsulation shell |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181221 |