CN103706908A - Low-temperature welding technique for binding posts and connecting wires in quartz accelerometer - Google Patents
Low-temperature welding technique for binding posts and connecting wires in quartz accelerometer Download PDFInfo
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- CN103706908A CN103706908A CN201310664531.6A CN201310664531A CN103706908A CN 103706908 A CN103706908 A CN 103706908A CN 201310664531 A CN201310664531 A CN 201310664531A CN 103706908 A CN103706908 A CN 103706908A
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- binding post
- quartz accelerometer
- temperature
- welding
- connecting line
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- 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
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
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- 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
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
- B23K1/203—Fluxing, i.e. applying flux onto surfaces
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a low-temperature welding technique for binding posts and connecting wires in a quartz accelerometer. The technique includes the steps of 1, mounting a retaining plate on the binding-post upper surface of the quartz accelerometer; 2, pre-coating the binding posts of the quartz accelerometer with low-temperature welding flux, melting the low-temperature welding flux in a tin pan, inverting the quartz accelerometer to perpendicularly soak the binding posts in the tin pan, and allowing the low-temperature welding flux to automatically rise; 3, starting a soldering iron, and setting the temperature of the soldering iron to be 210 DEG C +/- 10 DEG C; 4, performing low-temperature welding at the temperature of 210 DEG C +/- 10 DEG C for 2s-3s; 5, cutting the retaining plates along the binding posts with side nippers, to obtain cuts, separating the retaining plates and the binding posts along the cuts, and extracting the retaining plate. The low-temperature welding technique for binding posts and connecting wires in the quartz accelerometer has the advantages that the quartz accelerometer is protected from damage by welding thermal shock; the application of the retaining plate ensures that the quartz accelerometer is airtight due to the housing being corroded by the flux.
Description
Technical field
The present invention relates to a kind of low-temperature welding process, particularly the low-temperature welding process of a kind of quartz accelerometer binding post and connecting line.
Background technology
The scolder that past quartz accelerometer binding post and connecting line welding are used is Sn63-Pb37/Sn60-Pb40, its fusing point is 183 ℃, and the step of method is: the first step, pretreatment, on quartz accelerometer binding post and connecting line, use electric iron to ward off tin, warding off Xi Wendu is 300 ℃; Second step, manual welding is brushed rosin scaling powder with hairbrush on quartz accelerometer binding post, and flatiron set temperature is 280 ℃, and flatiron welds after reaching design temperature.
In the method in past, ward off Xi Wendu and reach 300 ℃, during welding, flatiron temperature reaches 280 ℃, has exceeded the fusing point of the inner welding material of quartz accelerometer, and the high inner solder joint of quartz accelerometer that causes of welding temperature disconnects, and causes accelerometer to lose efficacy.In addition, the method in past is used liquid rosin scaling powder, and scaling powder flows on the shell of quartz accelerometer, because scaling powder is acid, and the shell of quartz accelerometer is Stainless Steel Shell, welds residual scaling powder and can corrode Stainless Steel Shell and cause quartz accelerometer housing gas leakage.
Summary of the invention
The object of the present invention is to provide the low-temperature welding process of a kind of quartz accelerometer binding post and connecting line, solve that traditional welding method temperature is high, thermal shock macrolesion quartz accelerometer, and the problem of welding residual flux corrosion quartz accelerometer housing.
A low-temperature welding process for quartz accelerometer binding post and connecting line, its concrete steps are:
The first step has the upper surface of binding post that barrier sheet is installed at quartz accelerometer
Adopt the Kapton of thickness between 0.01mm ~ 0.1mm to make circular barrier sheet, the upper surface form fit of the profile of circular barrier sheet and quartz accelerometer, barrier sheet is fixed on quartz accelerometer upper surface through binding post.
Second step binding post and connecting line are warded off tin pretreatment
Quartz accelerometer binding post adopts solder to ward off tin pretreatment, the fusing point of solder is between 139 ℃ ~ 145 ℃, tin pot temperature is set to 210 ℃ ± 10 ℃, the time that tin pot is warded off tin is 2s～3s, the low temperature scolding tin of melting in heating tin pot, on binding post, smear one deck scaling powder, be inverted quartz accelerometer, binding post is dipped vertically into tin pot, solder is withdrawn from quartz accelerometer along binding post automatic climbing to 1mm ~ 2mm place, range acceleration meter stainless steel case surface, with nonwoven, dips the binding post after absolute ethyl alcohol cleaning pretreatment.
Connecting line termination insulating barrier is sloughed to 5mm, tighten core, slough the connecting line termination of insulating barrier and be dipped vertically into tin pot, solder automatic climbing, apart from insulating barrier 1mm ~ 2mm place, withdraw from connecting line, ward off tin pretreatment, with nonwoven, dip the clean connecting line of absolute ethyl alcohol termination.
The 3rd step low-temperature welding
Low-temperature welding is that Welding iron temperature range is between 200 ℃ ~ 220 ℃, lower than the welding manner of 280 ℃ of the Welding iron temperature of common tin kupper solder.The welding manner that adopts the laminating joint welding parallel with binding post of connecting line termination or the wrap connection post boxing of connecting line termination, welding temperature is 210 ℃ ± 10 ℃, be 2s～3s weld interval.
The 4th step cleaning barrier sheet
After connecting line and binding post welding, barrier sheet directly cannot be taken out from binding post top, with nonwoven, dip the clean barrier sheet of absolute ethyl alcohol surface, with staying bits pincers that barrier sheet is cut to opening along binding post place, along opening, barrier sheet is separated with binding post, take out barrier sheet.
This method adopts low-temperature welding technological parameter is set, and use barrier layer, and can realize the low-temperature welding of quartz accelerometer, there is quartz accelerometer and be not subject to Thermal Shock Damage, the advantage that housing can not corroded by scaling powder, the welding temperature of setting and time can guarantee that quality of welding spot is reliable.
Accompanying drawing explanation
The barrier sheet scheme of installation of the low-temperature welding process of a kind of quartz accelerometer binding post of Fig. 1 and connecting line;
The binding post pretreatment schematic diagram of the low-temperature welding process of a kind of quartz accelerometer binding post of Fig. 2 and connecting line;
The welding schematic diagram of the low-temperature welding process of a kind of quartz accelerometer binding post of Fig. 3 and connecting line.
1. binding post 2. Stainless Steel Shell 3. quartz accelerometer 4. barrier sheet 5. low temperature scolding tin 6. tin pot 7. connecting line 8. low temperature solder stick 9. solder horns.
The specific embodiment
A low-temperature welding process for quartz accelerometer binding post and connecting line, its concrete steps are:
The first step has the upper surface of binding post 1 that barrier sheet 4 is installed at quartz accelerometer 3
The Kapton that employing thickness is 0.05mm, according to the profile of quartz accelerometer 3, is cut out barrier sheet 4.The barrier sheet of cutting out 4 is lain on antistatic rubber cushion, be inverted quartz accelerometer 3, binding post 1 top pressure drag catch 4 with quartz accelerometer 3, barrier sheet 4 is through on binding post 1, with electrostatic-resisting tweezers, barrier sheet 4 is lain in to quartz accelerometer 3 upper surfaces, complete the installation of barrier sheet 4.
Second step binding post 1 is warded off tin pretreatment with connecting line 7
The binding post 1 employing fusing point of quartz accelerometer 3 is that the solder of 143 ℃ is warded off tin pretreatment, tin pot 6 volumes be more than or equal to 25mm * 25mm * 15mm, tin pot 6 temperature settings are set to 210 ℃, the time that tin pot 6 is warded off tin is 2s～3s, the low temperature scolding tin 5 of heating tin pot 6 interior meltings, on binding post 1, smear the solid-state scaling powder of one deck RMA type, be inverted quartz accelerometer 3, binding post 1 is dipped vertically into tin pot 6, solder is withdrawn from quartz accelerometer 3 along binding post 1 automatic climbing to range acceleration meter Stainless Steel Shell 2 surperficial 1.5mm places, with nonwoven, dip the clean binding post 1 of absolute ethyl alcohol.
Connecting line 7 termination insulating barriers are sloughed to 5mm, tighten core, connecting line 7 terminations are dipped vertically into tin pot 6, solder automatic climbing, withdraws from connecting line 7 apart from insulating barrier 1mm place, with nonwoven, dips the clean connecting line of absolute ethyl alcohol 7 terminations.
The 3rd step low-temperature welding
The temperature that flatiron is set is 210 ℃, reaches after the temperature of setting, measures the temperature of solder horn 9 with temperature measuring device, within the scope of 210 ℃ ± 10 ℃, is qualified.
Use low temperature solder stick 8 to be welded to connect line 7 and binding post 1, adopt the welding manner of connecting line 7 terminations and the parallel laminating joint welding of binding post 1, welding temperature is 210 ℃, and be 2s～3s weld interval.
The 4th step cleaning barrier sheet 4
After connecting line 7 and binding post 1 welding, barrier sheet 4 directly cannot be taken out from binding post 1 top, with nonwoven, dip the clean barrier sheet of absolute ethyl alcohol 4 surfaces, with staying bits pincers that barrier sheet 4 is cut to opening along binding post 1 place, along opening, barrier sheet 4 is separated with binding post 1, take out barrier sheet 4.
Claims (1)
1. a low-temperature welding process for quartz accelerometer binding post and connecting line, is characterized in that:
The first step has the upper surface of binding post (1) that barrier sheet (4) is installed at quartz accelerometer (3)
Adopt the Kapton of thickness between 0.01mm ~ 0.1mm to make circular barrier sheet (4), the profile of circular barrier sheet (4) and the upper surface form fit of quartz accelerometer (3), barrier sheet (4) is fixed on quartz accelerometer (3) upper surface through binding post (1);
Second step binding post (1) is warded off tin pretreatment with connecting line (7)
Quartz accelerometer (3) binding post (1) adopts solder to ward off tin pretreatment, the fusing point of solder is between 139 ℃ ~ 145 ℃, tin pot (6) temperature setting is set to 210 ℃ ± 10 ℃, the time that tin pot (6) is warded off tin is 2s～3s, the low temperature scolding tin (5) of the interior melting of heating tin pot (6), on binding post (1), smear one deck scaling powder, be inverted quartz accelerometer (3), binding post (1) is dipped vertically into tin pot (6), solder is withdrawn from quartz accelerometer (3) along binding post (1) automatic climbing to the surperficial 1mm ~ 2mm of range acceleration meter Stainless Steel Shell (2) place, with nonwoven, dip the binding post (1) after absolute ethyl alcohol cleaning pretreatment,
Connecting line (7) termination insulating barrier is sloughed to 5mm, tighten core, slough connecting line (7) termination of insulating barrier and be dipped vertically into tin pot (6), solder automatic climbing, apart from insulating barrier 1mm ~ 2mm place, withdraw from connecting line (7), ward off tin pretreatment, with nonwoven, dip the clean connecting line (7) of absolute ethyl alcohol termination;
The 3rd step low-temperature welding
Low-temperature welding is that Welding iron temperature range is between 200 ℃ ~ 220 ℃, lower than the welding manner of 280 ℃ of the Welding iron temperature of common tin kupper solder; The welding manner that adopts connecting line (7) termination and the parallel laminating joint welding of binding post (1) or connecting line (7) termination wrap connection post (1) boxing, welding temperature is 210 ℃ ± 10 ℃, be 2s～3s weld interval;
The 4th step cleaning barrier sheet (4)
After connecting line (7) and binding post (1) welding, barrier sheet (4) directly cannot be taken out from binding post (1) top, with nonwoven, dip the clean barrier sheet (4) of absolute ethyl alcohol surface, with staying bits pincers, barrier sheet (4) is located to cut opening along binding post (1), along opening, barrier sheet (4) is separated with binding post (1), take out barrier sheet (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664531.6A CN103706908B (en) | 2013-12-10 | 2013-12-10 | The low-temperature welding process of a kind of quartz accelerometer binding post and connecting line |
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| CN201310664531.6A CN103706908B (en) | 2013-12-10 | 2013-12-10 | The low-temperature welding process of a kind of quartz accelerometer binding post and connecting line |
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| CN103706908A true CN103706908A (en) | 2014-04-09 |
| CN103706908B CN103706908B (en) | 2016-05-18 |
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| CN201310664531.6A Expired - Fee Related CN103706908B (en) | 2013-12-10 | 2013-12-10 | The low-temperature welding process of a kind of quartz accelerometer binding post and connecting line |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201539A (en) * | 2014-09-04 | 2014-12-10 | 上海航天电子通讯设备研究所 | Method for tin coating of connector inserting pins |
| CN104393467A (en) * | 2014-11-21 | 2015-03-04 | 中国航天科技集团公司第九研究院第七七一研究所 | Tin coating method for medium part of connector |
| CN107378161A (en) * | 2016-04-29 | 2017-11-24 | 法国大陆汽车公司 | Nickel intensity lug in acceierometer sensor is contacted to the method that boxing connects with bronze connecting pin and brass |
| CN111600174A (en) * | 2020-06-01 | 2020-08-28 | 青岛智腾科技有限公司 | Process and tool for connecting internal lead of quartz flexible accelerometer |
| CN112475708A (en) * | 2019-09-12 | 2021-03-12 | 航天科工惯性技术有限公司 | Accelerometer terminal fixing device |
| CN114131129A (en) * | 2020-09-04 | 2022-03-04 | 广东铭基高科电子股份有限公司 | Coaxial line welding method and welding device |
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| GB731378A (en) * | 1952-08-15 | 1955-06-08 | Gen Electric Co Ltd | Improvements in or relating to piezoelectric accelerometers and to a method of manufacturing the same |
| US20100092795A1 (en) * | 2008-10-09 | 2010-04-15 | Honeywell International Inc. | Systems and methods for platinum ball bonding |
| CN103033645A (en) * | 2012-12-11 | 2013-04-10 | 北京兴华机械厂 | Omniseal gauge outfit and quartz flexure accelerometer |
| CN103116037A (en) * | 2013-01-21 | 2013-05-22 | 东南大学 | Quartz vibration beam accelerometer and manufacture method thereof |
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2013
- 2013-12-10 CN CN201310664531.6A patent/CN103706908B/en not_active Expired - Fee Related
Patent Citations (4)
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| GB731378A (en) * | 1952-08-15 | 1955-06-08 | Gen Electric Co Ltd | Improvements in or relating to piezoelectric accelerometers and to a method of manufacturing the same |
| US20100092795A1 (en) * | 2008-10-09 | 2010-04-15 | Honeywell International Inc. | Systems and methods for platinum ball bonding |
| CN103033645A (en) * | 2012-12-11 | 2013-04-10 | 北京兴华机械厂 | Omniseal gauge outfit and quartz flexure accelerometer |
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Non-Patent Citations (1)
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| CONSUELO TANGPUZ等: "形成倒装芯片焊点的铜接线柱焊凸(SBC)法", 《电子工业专用设备》, no. 136, 31 May 2006 (2006-05-31), pages 36 - 40 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201539A (en) * | 2014-09-04 | 2014-12-10 | 上海航天电子通讯设备研究所 | Method for tin coating of connector inserting pins |
| CN104393467A (en) * | 2014-11-21 | 2015-03-04 | 中国航天科技集团公司第九研究院第七七一研究所 | Tin coating method for medium part of connector |
| CN107378161A (en) * | 2016-04-29 | 2017-11-24 | 法国大陆汽车公司 | Nickel intensity lug in acceierometer sensor is contacted to the method that boxing connects with bronze connecting pin and brass |
| JP2017223658A (en) * | 2016-04-29 | 2017-12-21 | コンティネンタル オートモーティヴ フランスＣｏｎｔｉｎｅｎｔａｌ Ａｕｔｏｍｏｔｉｖｅ Ｆｒａｎｃｅ | Method of welding nickel strength lug with bronze connecting pin and brass contact ring in accelerometer sensor |
| US10744588B2 (en) | 2016-04-29 | 2020-08-18 | Continental Automotive France | Method of welding a nickel strength lug with a bronze connecting pin and a brass contact ring in an accelerometer sensor |
| CN112475708A (en) * | 2019-09-12 | 2021-03-12 | 航天科工惯性技术有限公司 | Accelerometer terminal fixing device |
| CN111600174A (en) * | 2020-06-01 | 2020-08-28 | 青岛智腾科技有限公司 | Process and tool for connecting internal lead of quartz flexible accelerometer |
| CN114131129A (en) * | 2020-09-04 | 2022-03-04 | 广东铭基高科电子股份有限公司 | Coaxial line welding method and welding device |
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| Publication number | Publication date |
|---|---|
| CN103706908B (en) | 2016-05-18 |
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Granted publication date: 20160518 Termination date: 20191210 |