CN103611996B - A kind of welding method of mother-daughter board connector long needle - Google Patents
A kind of welding method of mother-daughter board connector long needle Download PDFInfo
- Publication number
- CN103611996B CN103611996B CN201310508300.6A CN201310508300A CN103611996B CN 103611996 B CN103611996 B CN 103611996B CN 201310508300 A CN201310508300 A CN 201310508300A CN 103611996 B CN103611996 B CN 103611996B
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- Prior art keywords
- solder
- connector
- daughter board
- mother
- stick
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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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/012—Soldering with the use of hot gas
-
- 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
- B23K1/0016—Brazing of electronic components
-
- 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
-
- 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
- B23K2101/36—Electric or electronic devices
- B23K2101/42—Printed circuits
Abstract
The invention discloses a kind of welding method of mother-daughter board connector long needle, solder stick is closely wrapped on the diameter support stick suitable with mother-daughter board connector long needle, then the solder stick on support stick is cut, after the side of solder stick has been cut, obtain the solder ring with both-side opening, then solder ring is flattened; The solder ring of one or more pressing is enclosed within the long bottom of drawing pin of connector, keep flat backward mother daughter board connector and be blown into hot blast, solder ring is heated, hot blast solder ring is melted and make it enter into printed board and connector are long draws between pin, after solder ring melts completely, stop hot blast being blown into, naturally cool, connector length is drawn pin to the solder ring after solidifying and printed board links together.Present invention, avoiding and draw pin in the length of dense arrangement and weld, avoid and be difficult to operate and operate the error brought, simple to operate easy, when significantly can realize welding, the control of tin amount is more accurate.
Description
Technical field
The invention belongs to printed board assembly welding technology field, relate to a kind of welding method of mother-daughter board connector long needle.
Background technology
For a long time, on printed board assembly, the long welding method of drawing pin of mother daughter board connector all adopts traditional-handwork flatiron welding method, and right the method has the shortcomings such as operation easier is large, efficiency is low, homogeneity of product is poor.And for drawing four row's mother daughter board connectors that pin spacing is 1.27mm, middle two rows draw cautery therapy with heated needle iron and not easily enter, welding difficulty, and tin amount is wayward.
In recent years along with the fast development of computer product technology, requirement for product miniaturization is more and more higher, a large amount of uses of mother daughter board connector become inexorable trend, and the welding method of mother-daughter board connector long needle can not adapt to the needs of current production, therefore the research of mother daughter board connector welding material and welding method is also paid attention to gradually.
Summary of the invention
The problem that the present invention solves is the welding method providing a kind of mother-daughter board connector long needle, adopts Hot-blast Heating tin loop technique to solve the Welding Problems of mother-daughter board connector long needle, easy and simple to handle, respond well.
The present invention is achieved through the following technical solutions:
A welding method for mother-daughter board connector long needle, comprises following operation:
1) solder stick is closely wrapped on the diameter support stick suitable with mother-daughter board connector long needle, then the solder stick on support stick is cut, after the side of solder stick has been cut, obtain the solder ring with both-side opening, then solder ring is flattened;
2) solder ring of one or more pressing is enclosed within the long bottom of drawing pin of connector, keep flat backward mother daughter board connector and be blown into hot blast, solder ring is heated, hot blast solder ring is melted and make it enter into printed board and connector are long draws between pin, after solder ring melts completely, stop hot blast being blown into, naturally cool, connector length is drawn pin to the solder ring after solidifying and printed board links together.
Described when being blown into hot blast to mother daughter board connector, first the air-out nozzle matched with mother daughter board connector is fixed on heat gun, and then by air-out nozzle casing on mother daughter board connector.
The thickness of described air-out nozzle is 0.5 ~ 0.8mm, and flatness is 0.05 ~ 0.06mm.
Described solder stick is the plumbous eutectic solder of tin, and Hot-blast Heating temperature is 220 ~ 270 DEG C, and the temperature difference of mother daughter board connector corner hot blast temperature and center contact pin is no more than 5 DEG C.
Described solder stick is the plumbous eutectic solder of tin of Sn63/Pb37, and its diameter is 0.5 ~ 0.6mm, and Hot-blast Heating temperature is 250 ~ 260 DEG C.
Described is in the long bottom of drawing pin of connector by 2 ~ 3 solder ring parallel sleeves.
Described when cutting solder stick, be support stick is placed on the reeded flat board of tool, then linearly its one side upward carried out one-sided cutting.
Compared with prior art, the present invention has following useful technique effect:
The welding method of mother-daughter board connector long needle provided by the invention, adopt Hot-blast Heating tin loop technique to draw pin to printed board and connector length to weld, doing so avoids and draw pin in the length of dense arrangement and weld, avoid and be difficult to operate and operate the error brought, and pin can be drawn once weld long for connectors all in a printed board, improve operating efficiency greatly, and cut into solder ring by solder stick, hot air welding is carried out after sheathed to it again, simple to operate easy, when significantly can realize welding, the control of tin amount is more accurate.
The welding method of mother-daughter board connector long needle provided by the invention, can adopt tin plumbous eutectic solder, the especially material of low melting point, fire damage and a hot unit of weight measurement, about six liang are not easily caused for PCB and components and parts, solidify post crystallization fine and closely woven, there is good mechanics and electricity combination property, not easily form disturbance solder joint.Solder joint visual inspection after solder ring fusing, wetting good, smooth surface, bright, there is not crack and segregation phenomenon between solder and connector, in plated through-hole, tin is good thoroughly, meets standard-required.
The present invention also adopts temperature cycles, random vibration to draw pin detect the connector after welding is long, and result shows connector, and long to draw pin welding good, and outward appearance solder joint is wetting well has no obvious deformation phenomenon and solder joint is intact, has no Pad off phenomenon; Test prove, the present invention institute adopt Hot-blast Heating tin ring to carry out the scheme of welding, the welding realizing mother-daughter board connector long needle is reasonable and feasible, and the technical requirement of welding procedure is correct, can meet mother-daughter board connector long needle weld requirement.
Accompanying drawing explanation
Fig. 1-1 ~ Fig. 1-6 is solder ring making schematic diagram;
Fig. 2 is that solder ring is set in the long schematic diagram drawing pin of connector;
Fig. 3 is air-out nozzle schematic diagram;
Fig. 4 is Hot-blast Heating tin ring schematic diagram.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, and the explanation of the invention is not limited.
The welding method of a kind of mother-daughter board connector long needle provided by the invention, is adopt Hot-blast Heating tin ring to realize the welding of mother-daughter board connector long needle, can also controls, comprise following operation while realizing welding to tin amount:
1) solder stick is closely wrapped on the diameter support stick suitable with mother-daughter board connector long needle, then the solder stick on support stick is cut, after the side of solder stick has been cut, obtain the solder ring with both-side opening, then solder ring is flattened;
2) solder ring of one or more pressing is enclosed within the long bottom of drawing pin of connector, keep flat backward mother daughter board connector and be blown into hot blast, solder ring is heated, hot blast solder ring is melted and make it enter into printed board and connector are long draws between pin, after solder ring melts completely, stop hot blast being blown into, naturally cool, connector length is drawn pin to the solder ring after solidifying and printed board links together.
Concrete, when being blown into hot blast to mother daughter board connector, first the air-out nozzle matched with mother daughter board connector is fixed on heat gun, and then by air-out nozzle casing on mother daughter board connector.Can ensure the heating-up temperature of hot blast like this, can design respectively for different mother daughter board connectors, and such design makes only to need general heat gun just can heat.
And in order to ensure the quality of welding, described solder stick is the plumbous eutectic solder of tin, Hot-blast Heating temperature is 220 ~ 270 DEG C, and the temperature difference of mother daughter board connector corner hot blast temperature and center contact pin is no more than 5 DEG C.
Concrete, welding material selects component to be the plumbous eutectic solder of tin of Sn63/Pb37, this component is widely used in electronics welding equipment dress connection, its reason is that this material melting point is low, not easily causes fire damage and a hot unit of weight measurement, about six liang for PCB and components and parts, can realize the transformation of solid phase to liquid phase 183 DEG C time, without mushy zone, solidify post crystallization fine and closely woven, there is good mechanics and electricity combination property, not easily form disturbance solder joint.
Further, solder stick (Sn63/Pb37) Ф 0.5mm is adopted to make special tin ring, according to the requirement of tin amount, and connect problem in order to avoid solder is short, two are determined to be inserted in mother-daughter board connector long needle, air-out nozzle is arranged on temperature control heat gun hot-blast outlet place, then aims at mother daughter board connector and carry out Hot-blast Heating, complete the welding job of mother-daughter board connector long needle.
Provide specific embodiment below.
The welding method of mother-daughter board connector long needle, comprises following operation:
1) see Fig. 1-1 ~ Fig. 1-6, the preparation of solder ring comprises following operation:
Wherein Fig. 1-1 is depicted as support stick, concrete can select rigid metal silk, by Ф 0.51mm(Sn63/Pb37) solder stick is closely wrapped in diameter and is about (as shown in Figure 1-2) on the rigid metal silk of 0.72mm, then support stick is placed on the reeded flat board of tool (as Figure 1-3) by what wind solder stick, then linearly its one side is upward carried out one-sided cutting (as Figure 1-4);
After solder stick has cut, obtaining the solder ring (as Figure 1-5) with both-side opening, and then solder ring has been flattened, having obtained the solder ring (as shown in figures 1 to 6) for welding;
2) see Fig. 2 ~ Fig. 4, solder ring add thermal weld
With the air-out nozzle matched with plate connector, air-out nozzle is fixed on heat gun, the every root of mother-daughter board connector long needle draws cover two solder rings on pin, by on air-out nozzle casing connector, draw pin and printed board is linked together by tin material by Hot-blast Heating by long for connector, Hot-blast Heating temperature is about 260 DEG C;
Solder joint visual inspection after solder ring fusing, wetting good, smooth surface, bright, there is not crack and segregation phenomenon between solder and connector, in plated through-hole, tin is good thoroughly, meets standard-required.
For certain shown below product, mother daughter board connector is of a size of: draw pin diameter: φ 0.76, draw pin spacing: 1.27mm, mother daughter board connector size: 77mm × 8mm × 14.5mm, according to the appearance and size of mother-daughter board connector long needle, design air-out nozzle, is designed to 60mm × 20mm × 20mm, thickness 0.5mm, requires that flatness is 0.05mm.Draw pin in each length of mother daughter board connector and overlap two tin rings respectively, draw pin by the heat gun heating mother daughter board connector length with special air outlet temperature control, complete the Welding Problems of mother daughter board connector.
In order to ensure the reliability that mother daughter board connector welds, following certification test is carried out to mother daughter board connector after welding below:
A. temperature cycles
30 circulations of-50 DEG C ← → 100 DEG C conditions;
B. random vibration (see table 1)
Table 1 random vibration condition
After above-mentioned test examination, observing mother daughter board connector, long to draw pin welding good, and outward appearance solder joint is wetting well has no obvious deformation phenomenon and solder joint is intact, has no Pad off phenomenon.
Claims (1)
1. a welding method for mother-daughter board connector long needle, is characterized in that, comprises following operation:
1) solder stick is closely wrapped on the diameter support stick suitable with mother-daughter board connector long needle, then the solder stick on support stick is cut, after the side of solder stick has been cut, obtain the solder ring with both-side opening, then solder ring is flattened;
2) solder ring of one or more pressing is enclosed within the long bottom of drawing pin of connector, keep flat backward mother daughter board connector and be blown into hot blast, solder ring is heated, hot blast solder ring is melted and make it enter into printed board and connector are long draws between pin, after solder ring melts completely, stop hot blast being blown into, naturally cool, connector length is drawn pin to the solder ring after solidifying and printed board links together;
When being blown into hot blast to mother daughter board connector, first the air-out nozzle matched with mother daughter board connector is fixed on heat gun, and then by air-out nozzle casing on mother daughter board connector;
The short brink bottom of air-out nozzle and the position, four base angles of long side arrange perforate respectively;
The thickness of described air-out nozzle is 0.5 ~ 0.8mm, and flatness is 0.05 ~ 0.06mm;
Described solder stick is the plumbous eutectic solder of tin, and Hot-blast Heating temperature is 220 ~ 270 DEG C, and the temperature difference of mother daughter board connector corner hot blast temperature and center contact pin is no more than 5 DEG C;
Described solder stick is the plumbous eutectic solder of tin of Sn63/Pb37, and its diameter is 0.5 ~ 0.6mm;
By solder ring parallel sleeve in the long bottom of drawing pin of connector;
When cutting solder stick, being support stick is placed on the reeded flat board of tool, then linearly its one side upward being carried out one-sided cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310508300.6A CN103611996B (en) | 2013-10-24 | 2013-10-24 | A kind of welding method of mother-daughter board connector long needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310508300.6A CN103611996B (en) | 2013-10-24 | 2013-10-24 | A kind of welding method of mother-daughter board connector long needle |
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| Publication Number | Publication Date |
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| CN103611996A CN103611996A (en) | 2014-03-05 |
| CN103611996B true CN103611996B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310508300.6A Active CN103611996B (en) | 2013-10-24 | 2013-10-24 | A kind of welding method of mother-daughter board connector long needle |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942394B (en) * | 2015-06-03 | 2017-07-11 | 常熟市林芝电子有限责任公司 | Lead ceramic thermistor welding method with high reliability |
| CN106129760B (en) * | 2016-06-28 | 2018-10-16 | 湖北三江航天万峰科技发展有限公司 | A kind of assembling and welding process of the multiple rows of gold-plated pin mother daughter board connector of row of high density |
| CN113000966B (en) * | 2021-04-29 | 2023-09-22 | 西安微电子技术研究所 | Welding method of connector between gold-plated pin plates |
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| US5386085A (en) * | 1991-10-31 | 1995-01-31 | Hughes Aircraft Company | Multilayer electrical circuit structure including partially embedded pins for external connection |
| US5959829A (en) * | 1998-02-18 | 1999-09-28 | Maxwell Energy Products, Inc. | Chip capacitor electromagnetic interference filter |
| CN1337144A (en) * | 1999-01-11 | 2002-02-20 | 松下电器产业株式会社 | Article having a circuit soldered with parts and method for recycling wastes of the same |
| CN1379503A (en) * | 2001-03-30 | 2002-11-13 | 日本压着端子制造株式会社 | Electric contact device using resin welding flux, electric connector and connecting method of distributing board |
| CN2569522Y (en) * | 2002-08-28 | 2003-08-27 | 华为技术有限公司 | Tool for producing welding wire ring |
| CN101431861A (en) * | 2007-11-07 | 2009-05-13 | 株式会社东海理化电机制作所 | Printed wiring board |
| CN101468436A (en) * | 2007-12-27 | 2009-07-01 | 奥雷通光通讯设备（上海）有限公司 | Method for producing coupling component |
| CN101976790A (en) * | 2010-09-14 | 2011-02-16 | 苏州华旃航天电器有限公司 | Radio-frequency cable assembly for communication equipment |
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2013
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5386085A (en) * | 1991-10-31 | 1995-01-31 | Hughes Aircraft Company | Multilayer electrical circuit structure including partially embedded pins for external connection |
| US5959829A (en) * | 1998-02-18 | 1999-09-28 | Maxwell Energy Products, Inc. | Chip capacitor electromagnetic interference filter |
| CN1337144A (en) * | 1999-01-11 | 2002-02-20 | 松下电器产业株式会社 | Article having a circuit soldered with parts and method for recycling wastes of the same |
| CN1379503A (en) * | 2001-03-30 | 2002-11-13 | 日本压着端子制造株式会社 | Electric contact device using resin welding flux, electric connector and connecting method of distributing board |
| CN2569522Y (en) * | 2002-08-28 | 2003-08-27 | 华为技术有限公司 | Tool for producing welding wire ring |
| CN101431861A (en) * | 2007-11-07 | 2009-05-13 | 株式会社东海理化电机制作所 | Printed wiring board |
| CN101468436A (en) * | 2007-12-27 | 2009-07-01 | 奥雷通光通讯设备（上海）有限公司 | Method for producing coupling component |
| CN101976790A (en) * | 2010-09-14 | 2011-02-16 | 苏州华旃航天电器有限公司 | Radio-frequency cable assembly for communication equipment |
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| Publication number | Publication date |
|---|---|
| CN103611996A (en) | 2014-03-05 |
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