CN103611996A - Method for welding mother-daughter board connector long needle - Google Patents
Method for welding mother-daughter board connector long needle Download PDFInfo
- Publication number
- CN103611996A CN103611996A CN201310508300.6A CN201310508300A CN103611996A CN 103611996 A CN103611996 A CN 103611996A CN 201310508300 A CN201310508300 A CN 201310508300A CN 103611996 A CN103611996 A CN 103611996A
- Authority
- CN
- China
- Prior art keywords
- daughter board
- board connector
- solder
- pin
- mother
- 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.)
- Granted
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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 method for welding a mother-daughter board connector long needle. The method includes the steps that a tin wire tightly winds a supporting bar, wherein the diameter of the supporting bar corresponds to that of the mother-daughter board connector long needle; then the tin wire on the supporting bar is cut, after one side of the tin wire to be welded is cut, a solder ring with openings in two sides is obtained, and then the solder ring is flattened; one or more flattened solder rings are arranged at the bottom of the mother-daughter board connector long needle in a sleeved mode, after the mother-daughter board connector long needle is horizontally arranged, hot air is blown into a mother-daughter board connector to heat the flattened solder rings, the hot air melts the flattened solder rings and enables the flattened solder rings to enter the position between a printing plate and the mother-daughter board connector long needle, after the solder rings are completely molten, the hot air stops being blown, the molten solder rings naturally cool, and the solidified solder rings connect the mother-daughter board connector long needle with the printing plate. The method avoids soldering of long needles distributed densely, avoids difficult operations and errors brought by the operations, and is simple and convenient to operate, and more importantly, control of the amount of tin is more accurate in the welding process.
Description
Technical field
The invention belongs to printed board assembly welding technology field, relate to the welding method that a kind of mother daughter board connector length is drawn pin.
Background technology
For a long time, the welding method that on printed board assembly, mother daughter board connector length is drawn pin all adopts traditional-handwork flatiron welding method, and so 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 are difficult for entering, welding difficulty, and also 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 have become inexorable trend, and mother daughter board connector length is drawn the needs that the welding method of pin can not adapt to current production, so 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 to provide a kind of mother daughter board connector length to draw the welding method of pin, adopts Hot-blast Heating tin loop technique to solve the Welding Problems that mother daughter board connector length is drawn pin, easy and simple to handle, respond well.
The present invention is achieved through the following technical solutions:
Mother daughter board connector length is drawn a welding method for pin, comprises following operation:
1) solder stick is closely wrapped in to diameter and mother daughter board connector length and draws on the support stick that pin is suitable, then the solder stick on support stick is cut, after a side of solder stick has been cut, obtain having the solder ring of both-side opening, then solder ring is flattened;
2) solder ring of one or more pressings is enclosed within to the bottom that connector length is drawn pin, keep flat backward mother daughter board connector and be blown into hot blast, solder ring is heated, hot blast melts solder ring and makes it enter into printed board and connector length is drawn between pin, after solder ring melts completely, stop hot blast and be blown into, naturally cooling, connector length is drawn to 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 matching 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 ℃, and the temperature of four jiaos of hot blast temperatures of mother daughter board connector and center contact pin differs and is no more than 5 ℃.
Described solder stick is the plumbous eutectic solder of the tin of Sn63/Pb37, and its diameter is 0.5～0.6mm, and Hot-blast Heating temperature is 250～260 ℃.
Described is that 2～3 solder ring parallel sleeves are drawn to the bottom of pin in connector length.
Described when solder stick is cut, be that support stick is placed on the reeded flat board of tool, then along straight line, its one side is upward carried out to one-sided cutting.
Compared with prior art, the present invention has following useful technique effect:
Mother daughter board connector length provided by the invention is drawn the welding method of pin, adopting Hot-blast Heating tin loop technique to draw pin to printed board and connector length welds, with regard to having avoided drawing pin in the length of dense arrangement, weld like this, avoided being difficult to operation and operated the error of bringing, and connector length all in a printed board can be drawn to pin and once weld, improved greatly operating efficiency, and cut into solder ring by solder stick, after sheathed to it again, carry out hot air welding, simple to operate easy, particularly importantly in the time of can realizing welding, the control of tin amount is more accurate.
Mother daughter board connector length provided by the invention is drawn the welding method of pin, can adopt the material of plumbous eutectic solder, especially low melting point of tin, for PCB and components and parts, be difficult for causing fire damage and a hot unit of weight measurement, about six liang, solidify post crystallization fine and closely woven, there is good mechanics and electricity combination property, be difficult for forming disturbance solder joint.After solder ring fusing, solder joint outward appearance is observed, wetting good, and smooth surface, bright, does not exist crack and segregation phenomenon between scolder and connector, and in plated through-hole, tin is good thoroughly, meets standard-required.
Connector length after the present invention also adopts temperature cycles, random vibration to welding is drawn pin and is detected, and it is good that result shows that connector length is drawn pin welding, outward appearance solder joint is wetting well have no obvious deformation phenomenon and solder joint intact, have no Pad off phenomenon; Evidence, the scheme that the present invention adopts Hot-blast Heating tin ring to weld, realizing mother daughter board connector length, to draw the welding of pin be reasonable and feasible, the specification requirement of welding procedure is correct, can meet the requirement that mother daughter board connector length is drawn pin welding.
Accompanying drawing explanation
Fig. 1-1～Fig. 1-6 are solder ring making schematic diagram;
Fig. 2 is that solder ring is set in the schematic diagram that connector length is drawn pin;
Fig. 3 is air-out nozzle schematic diagram;
Fig. 4 is Hot-blast Heating tin ring schematic diagram.
The specific embodiment
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 that a kind of mother daughter board connector length provided by the invention is drawn pin, is to adopt Hot-blast Heating tin ring to realize the welding that mother daughter board connector length is drawn pin, when realizing welding, can also control tin amount, comprises following operation:
1) solder stick is closely wrapped in to diameter and mother daughter board connector length and draws on the support stick that pin is suitable, then the solder stick on support stick is cut, after a side of solder stick has been cut, obtain having the solder ring of both-side opening, then solder ring is flattened;
2) solder ring of one or more pressings is enclosed within to the bottom that connector length is drawn pin, keep flat backward mother daughter board connector and be blown into hot blast, solder ring is heated, hot blast melts solder ring and makes it enter into printed board and connector length is drawn between pin, after solder ring melts completely, stop hot blast and be blown into, naturally cooling, connector length is drawn to 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 matching with mother daughter board connector is fixed on heat gun, and then by air-out nozzle casing on mother daughter board connector.Can guarantee 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 guarantee the quality of welding, described solder stick is the plumbous eutectic solder of tin, Hot-blast Heating temperature is 220～270 ℃, and the temperature of four jiaos of hot blast temperatures of mother daughter board connector and center contact pin differs and is no more than 5 ℃.
Concrete, it is the plumbous eutectic solder of tin of Sn63/Pb37 that welding material is selected component, this component is widely used in electronics welding equipment dress connection, its reason is that this material melting point is low, for PCB and components and parts, is difficult for causing fire damage and a hot unit of weight measurement, about six liang, in the time of 183 ℃, can realize solid phase to the transformation of liquid phase, without mushy zone, solidify post crystallization fine and closely woven, there is good mechanics and electricity combination property, be difficult for forming disturbance solder joint.
Further, adopt solder stick (Sn63/Pb37) Ф 0.5mm to make special-purpose tin ring, according to the requirement of tin amount, and for fear of the short problem that connects of scolder, determine that by two, being inserted in mother daughter board connector length draws on pin, air-out nozzle is arranged on to 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 that mother daughter board connector length is drawn pin.
Provide specific embodiment below.
Mother daughter board connector length is drawn the welding method of pin, comprises following operation:
1), referring to 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 on the rigid metal silk that diameter is about 0.72mm (as shown in Figure 1-2), then by winding support stick being placed on the reeded flat board of tool (as Figure 1-3) of solder stick, then along straight line, its one side is upward carried out to one-sided cutting (as Figure 1-4);
After solder stick has cut, obtain having the solder ring (as Figure 1-5) of both-side opening, and then solder ring is flattened, obtain the solder ring (as shown in Fig. 1-6) for welding;
2) referring to Fig. 2～Fig. 4, the heating of solder ring welding
With the air-out nozzle matching with plate connector, air-out nozzle is fixed on heat gun, mother daughter board connector length is drawn every, pin and is drawn and on pin, overlap two solder rings, by on air-out nozzle casing connector, by Hot-blast Heating, connector length is drawn to pin and printed board links together by tin material, Hot-blast Heating temperature is about 260 ℃;
After solder ring fusing, solder joint outward appearance is observed, wetting good, and smooth surface, bright, does not exist crack and segregation phenomenon between scolder and connector, and in plated through-hole, tin is good thoroughly, meets standard-required.
Certain product shown in take is below example, 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, the appearance and size of drawing pin according to mother daughter board connector length, design air-out nozzle, is designed to 60mm * 20mm * 20mm, thickness 0.5mm, requiring flatness is 0.05mm.In each length of mother daughter board connector, draw pin and overlap respectively two tin rings, use with the heat gun heating mother daughter board connector length of special-purpose air outlet temperature control and draw pin, complete the Welding Problems of mother daughter board connector.
In order to guarantee the reliability of mother daughter board connector welding, to welding rear mother daughter board connector, carried out following certification test below:
A. temperature cycles
30 circulations of-50 ℃ ← → 100 ℃ conditions;
B. random vibration (in Table 1)
Table 1 random vibration condition
After above-mentioned test examination, observing mother daughter board connector length, to draw pin welding good, outward appearance solder joint is wetting well have no obvious deformation phenomenon and solder joint intact, have no Pad off phenomenon.
Claims (7)
1. mother daughter board connector length is drawn a welding method for pin, it is characterized in that, comprises following operation:
1) solder stick is closely wrapped in to diameter and mother daughter board connector length and draws on the support stick that pin is suitable, then the solder stick on support stick is cut, after a side of solder stick has been cut, obtain having the solder ring of both-side opening, then solder ring is flattened;
2) solder ring of one or more pressings is enclosed within to the bottom that connector length is drawn pin, keep flat backward mother daughter board connector and be blown into hot blast, solder ring is heated, hot blast melts solder ring and makes it enter into printed board and connector length is drawn between pin, after solder ring melts completely, stop hot blast and be blown into, naturally cooling, connector length is drawn to pin to the solder ring after solidifying and printed board links together.
2. the welding method that mother daughter board connector length as claimed in claim 1 is drawn pin, it is characterized in that, when being blown into hot blast to mother daughter board connector, first the air-out nozzle matching with mother daughter board connector is fixed on heat gun, and then by air-out nozzle casing on mother daughter board connector.
3. the welding method that mother daughter board connector length as claimed in claim 3 is drawn pin, is characterized in that, the thickness of described air-out nozzle is 0.5～0.8mm, and flatness is 0.05～0.06mm.
4. the welding method that mother daughter board connector length as claimed in claim 5 is drawn pin, it is characterized in that, described solder stick is the plumbous eutectic solder of tin, and Hot-blast Heating temperature is 220～270 ℃, and the temperature of four jiaos of hot blast temperatures of mother daughter board connector and center contact pin differs and is no more than 5 ℃.
5. the welding method that the mother daughter board connector length as described in claim 1 or 4 is drawn pin, is characterized in that, the plumbous eutectic solder of tin that described solder stick is Sn63/Pb37, and its diameter is 0.5～0.6mm, Hot-blast Heating temperature is 250～260 ℃.
6. the welding method that mother daughter board connector length as claimed in claim 4 is drawn pin, is characterized in that, is 2～3 solder ring parallel sleeves are drawn to the bottom of pin in connector length.
7. the welding method that mother daughter board connector length as claimed in claim 1 is drawn pin, is characterized in that, when solder stick is cut, is that support stick is placed on the reeded flat board of tool, then along straight line, its one side is upward carried out to 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103611996A true CN103611996A (en) | 2014-03-05 |
| CN103611996B CN103611996B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| CN (1) | CN103611996B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942394A (en) * | 2015-06-03 | 2015-09-30 | 常熟市林芝电子有限责任公司 | High-reliability welding method for lead ceramic thermal resistor |
| CN106129760A (en) * | 2016-06-28 | 2016-11-16 | 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 many arrangements of high density gold-plated pin mother daughter board connector |
| CN113000966A (en) * | 2021-04-29 | 2021-06-22 | 西安微电子技术研究所 | Welding method of connector between gold-plated pin plates |
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| US5959829A (en) * | 1998-02-18 | 1999-09-28 | Maxwell Energy Products, Inc. | Chip capacitor electromagnetic interference filter |
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| 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 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942394A (en) * | 2015-06-03 | 2015-09-30 | 常熟市林芝电子有限责任公司 | High-reliability welding method for lead ceramic thermal resistor |
| CN106129760A (en) * | 2016-06-28 | 2016-11-16 | 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 many arrangements of high density gold-plated pin mother daughter board connector |
| 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 |
| CN113000966A (en) * | 2021-04-29 | 2021-06-22 | 西安微电子技术研究所 | Welding method of connector between gold-plated pin plates |
| 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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| Publication number | Publication date |
|---|---|
| CN103611996B (en) | 2016-03-23 |
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