CN107498126A - Method for enameling tin on deep cavity or narrow cavity - Google Patents

Method for enameling tin on deep cavity or narrow cavity Download PDF

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Publication number
CN107498126A
CN107498126A CN201710491567.7A CN201710491567A CN107498126A CN 107498126 A CN107498126 A CN 107498126A CN 201710491567 A CN201710491567 A CN 201710491567A CN 107498126 A CN107498126 A CN 107498126A
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CN
China
Prior art keywords
cavity
tin
warded
chamber
narrow
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
Application number
CN201710491567.7A
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Chinese (zh)
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CN107498126B (en
Inventor
汪宁
费文军
陈兴盛
李金晶
洪火锋
孟庆贤
李明
张丽
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Anhui East China Institute of Optoelectronic Technology
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Anhui Huadong Polytechnic Institute
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Priority to CN201710491567.7A priority Critical patent/CN107498126B/en
Publication of CN107498126A publication Critical patent/CN107498126A/en
Application granted granted Critical
Publication of CN107498126B publication Critical patent/CN107498126B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/20Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
    • B23K1/203Fluxing, i.e. applying flux onto surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/20Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
    • B23K1/206Cleaning

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Molten Solder (AREA)

Abstract

The invention discloses a method for enameling tin on a deep cavity or a narrow cavity, which comprises the following steps of manufacturing a gold-plated copper sheet; secondly, removing oxides in advance before tin coating; preheating on a hot table, spraying soldering flux, wherein the type of the soldering flux is as follows: EF-9301, solder is added, the cavity is placed on a hot table with the temperature of 240 +/-5 ℃ for preheating, and then a layer of soldering flux is sprayed on the area to be enameled of the cavity, wherein the type of the soldering flux is as follows: EF-9301, and then adding solder wires to the area of the cavity to be subjected to tin coating; fourthly, clamping a gold-plated copper sheet by using tweezers, placing the gold-plated copper sheet on the molten solder, and rubbing the gold-plated copper sheet in the area to be tin-plated in the cavity back and forth to enable the cavity to be tin-plated; and step five, cleaning the cavity after tin coating. Compared with the traditional electric iron mode, the invention has the advantages of simpler operation, convenience, high efficiency and no dead angle of tin coating. The invention is suitable for mass production and is worth popularizing.

Description

One kind wards off tin method on deep chamber or narrow chamber
Technical field
Tin method is warded off on deep chamber or narrow chamber the present invention relates to one kind, belongs to electronic product machining technical field.
Background technology
With the development of microwave technology, the frequency more and more higher of microwave module, the cavity used in microwave module engenders Deep chamber or narrow cavity configuration, deep chamber or narrow cavity configuration cavity effectively shield electromagnetic interference, improve the transmission quality of microwave signal. In existing process, to improve cavity and microwave circuit boards burn-back penetration rate, conventional electric iron wards off tin on cavity, and deep chamber or The appearance of narrow cavity configuration cavity, is limited by cavity body structure part, can not be warded off tin in deep chamber or narrow cavity edge with electric iron, be warded off tin not In place, influence cavity and microwave circuit boards burn-back penetration rate, the final quality for influenceing product, in addition, with electric iron in deep chamber or Operate and its inconvenient, add heavily to the difficulty of the work on narrow chamber.
To solve the deficiency of existing process, tin method is warded off on deep chamber or narrow chamber the invention provides one kind, this method is led to Cross setting and rationally effectively ward off process of tin flow, by the gold plated copper sheets of suitable size, deep chamber or narrow cavity edge is warded off tin completely, Guarantee is provided for follow-up cavity and microwave circuit boards burn-back penetration rate, ensure that the quality of product.The letter of the inventive method step It is single, easy to operate, can produce in enormous quantities, in the case where not increasing equipment investment, improve the quality of product.
The content of the invention
The deficiency of tin can not be effectively warded off in the cavity of deep chamber or narrow cavity configuration to solve existing process with electric iron, this Invention provides one kind and wards off tin method on deep chamber or narrow chamber.This method mainly includes:
Step 1: make gold plated copper sheets.According to deep chamber or narrow cavity configuration and size, make what is be engaged with cavity body structure and size Copper sheet, then copper sheet surface gold-plating.
Step 2: before tin is warded off, oxide is removed in advance.Cavity is placed in plasma cleaner, set clear Parameter is washed, with strong cleaning, removes cavity tin region surface oxide to be warded off.
Step 3: being preheated in thermal station, scaling powder, model are sprayed:EF-9301, upper solder, the solder compositions percentage Than:Sn96.5%, Ag3%, Cu0.5%.Cavity is placed in the thermal station that temperature is 240 ± 5 DEG C and preheated, then to cavity Spray one layer of scaling powder, model in tin region to be warded off:EF-9301, then add appropriate solder stick to cavity tin region to be warded off again.
Step 4: gripping gold plated copper sheets with tweezers, it is placed on the solder of fusing, is rubbed back and forth in cavity tin region to be warded off Wipe, its cavity is warded off tin.
Step 5: cleaned the cavity after tin is warded off.The cavity after tin will be warded off and be first put into that to fill ABZOL CEG CLEANER clear Hot brew cleaning, scavenging period 300-350s in the vapour phase cleaning groove of lotion, then be cleaned by ultrasonic, scavenging period is 100-120s, finally it is put into absolute ethyl alcohol and carries out hairbrush scrub, naturally dry.
Beneficial effect:One kind provided by the invention wards off tin method on deep chamber or narrow chamber, the advantage is that, tin is warded off in cavity Before, cavity adhesive force is improved, is improved weldering with the oxide in the strong cleaning model removal cavity of plasma cleaner in advance The wellability of tin, ward off tin for follow-up cavity and provide suitable environment, eliminating influences the undesirable element that cavity wards off tin quality;Separately It is outer it is used in the present invention carries out cavity with tweezers gripping gold plated copper sheets and wards off tin mode, use electric iron mode relative to tradition, behaviour Work is more simple, convenient, efficient, wards off tin without dead angle.The present invention is adapted to produce in enormous quantities, is worthy to be popularized.
Brief description of the drawings
Fig. 1 is flow chart of the method for the present invention.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Tin method is warded off on deep chamber or narrow chamber as shown in figure 1, a kind of, including step is as follows:
Step 1: make gold plated copper sheets.According to deep chamber or narrow cavity configuration and size, make what is be engaged with cavity body structure and size Copper sheet, then copper sheet surface gold-plating.
Step 2: before tin is warded off, oxide is removed in advance.Cavity is placed in plasma cleaner, set clear Parameter is washed, with strong cleaning, removes cavity tin region surface oxide to be warded off.
Step 3: being preheated in thermal station, scaling powder, model are sprayed:EF-9301, upper solder, the solder compositions percentage Than:Sn96.5%, Ag3%, Cu0.5%.Cavity is placed in the thermal station that temperature is 245 DEG C and preheated, waits to ward off then to cavity Spray one layer of scaling powder, model in tin region:EF-9301, then add appropriate solder stick to cavity tin region to be warded off again.
Step 4: gripping gold plated copper sheets with tweezers, it is placed on the solder of fusing, is rubbed back and forth in cavity tin region to be warded off Wipe, its cavity is warded off tin.
Step 5: cleaned the cavity after tin is warded off.The cavity after tin will be warded off and be first put into that to fill ABZOL CEG CLEANER clear Hot brew cleaning, scavenging period 300s in the vapour phase cleaning groove of lotion, then be cleaned by ultrasonic, scavenging period 100s, most After be put into absolute ethyl alcohol carry out hairbrush scrub, naturally dry.
Described above is only the preferred embodiment of the present invention, it should be pointed out that:For the ordinary skill people of the art For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (6)

1. one kind wards off tin method on deep chamber or narrow chamber, it is characterised in that:It is as follows including step:
Step 1: make gold plated copper sheets;
Step 2: before tin is warded off, oxide is removed in advance;
Step 3: being preheated in thermal station, scaling powder, scaling powder model are sprayed:EF-9301, upper solder, cavity is placed on temperature To be preheated in 240 ± 5 DEG C of thermal station, one layer of scaling powder, scaling powder model are sprayed then to cavity tin region to be warded off:EF- 9301, then add solder stick to cavity tin region to be warded off again;
Step 4: gripping gold plated copper sheets with tweezers, it is placed on the solder of fusing, back and forth in cavity tin region friction to be warded off, makes Its cavity wards off tin;
Step 5: cleaned the cavity after tin is warded off.
2. one kind according to claim 1 wards off tin method on deep chamber or narrow chamber, it is characterised in that:The step 1 bag Include:According to deep chamber or narrow cavity configuration and size, the copper sheet being engaged with cavity body structure and size is made, then copper sheet surface is plated Gold.
3. one kind according to claim 1 wards off tin method on deep chamber or narrow chamber, it is characterised in that:The step 2 bag Include:Cavity is placed in plasma cleaner, sets cleaning parameterses, with strong cleaning, removes cavity tin region surface to be warded off Oxide.
4. one kind according to claim 1 wards off tin method on deep chamber or narrow chamber, it is characterised in that:Welded in the step 3 Expect percentage composition:Sn96.5%, Ag3%, Cu0.5%.
5. one kind according to claim 1 wards off tin method on deep chamber or narrow chamber, it is characterised in that:It is hot in the step 3 Platform preheating temperature is 245 DEG C.
6. one kind according to claim 1 wards off tin method on deep chamber or narrow chamber, it is characterised in that:The step 5 bag Include:The cavity after tin will be warded off and be first put into hot brew cleaning in the vapour phase cleaning groove for filling ABZOL CEG CLEANER cleaning agents, clearly It is 300-350s to wash the time, then is cleaned by ultrasonic, scavenging period 100-120s, is finally put into absolute ethyl alcohol and carries out hairbrush brush Wash, naturally dry.
CN201710491567.7A 2017-06-26 2017-06-26 Method for enameling tin on deep cavity or narrow cavity Active CN107498126B (en)

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CN107498126B CN107498126B (en) 2020-02-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108971681A (en) * 2017-06-02 2018-12-11 特变电工沈阳变压器集团有限公司 Shield lead welding technique to a kind of transformer copper
CN110369822A (en) * 2019-06-27 2019-10-25 中国航天时代电子有限公司 A kind of efficient reliable small deep hole rotation wards off tin and goes golden method

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001144401A (en) * 1999-11-12 2001-05-25 Denso Corp Controlling device
CN103369857A (en) * 2012-03-30 2013-10-23 北大方正集团有限公司 A method for processing a testing board before a conductive anodic filament experiment
CN103447646A (en) * 2013-09-05 2013-12-18 中国电子科技集团公司第十研究所 Method for realizing welding between soft base chip circuit board and metal base body without special tool
CN103737135A (en) * 2013-12-09 2014-04-23 成都赛英科技有限公司 Metal shell soldering method
CN103934534A (en) * 2014-04-15 2014-07-23 北京卫星制造厂 Vacuum welding method for thick film substrate and power shell
CN105436825A (en) * 2015-11-26 2016-03-30 安徽华东光电技术研究所 Manufacturing method of LED constant current source driving circuit module
CN106413285A (en) * 2016-11-22 2017-02-15 株洲天微技术有限公司 Microcircuit module back side pre-soldering and pre-soldering heating device
CN106572607A (en) * 2016-06-23 2017-04-19 安徽华东光电技术研究所 Process manufacturing method of solid-state microwave source
CN107350585A (en) * 2017-06-26 2017-11-17 安徽华东光电技术研究所 A kind of method of flat gold plated lead manual welding

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001144401A (en) * 1999-11-12 2001-05-25 Denso Corp Controlling device
CN103369857A (en) * 2012-03-30 2013-10-23 北大方正集团有限公司 A method for processing a testing board before a conductive anodic filament experiment
CN103447646A (en) * 2013-09-05 2013-12-18 中国电子科技集团公司第十研究所 Method for realizing welding between soft base chip circuit board and metal base body without special tool
CN103737135A (en) * 2013-12-09 2014-04-23 成都赛英科技有限公司 Metal shell soldering method
CN103934534A (en) * 2014-04-15 2014-07-23 北京卫星制造厂 Vacuum welding method for thick film substrate and power shell
CN105436825A (en) * 2015-11-26 2016-03-30 安徽华东光电技术研究所 Manufacturing method of LED constant current source driving circuit module
CN106572607A (en) * 2016-06-23 2017-04-19 安徽华东光电技术研究所 Process manufacturing method of solid-state microwave source
CN106413285A (en) * 2016-11-22 2017-02-15 株洲天微技术有限公司 Microcircuit module back side pre-soldering and pre-soldering heating device
CN107350585A (en) * 2017-06-26 2017-11-17 安徽华东光电技术研究所 A kind of method of flat gold plated lead manual welding

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108971681A (en) * 2017-06-02 2018-12-11 特变电工沈阳变压器集团有限公司 Shield lead welding technique to a kind of transformer copper
CN110369822A (en) * 2019-06-27 2019-10-25 中国航天时代电子有限公司 A kind of efficient reliable small deep hole rotation wards off tin and goes golden method
CN110369822B (en) * 2019-06-27 2021-05-11 中国航天时代电子有限公司 Efficient and reliable small deep hole rotary tin-coating and gold-removing method

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Address after: 241002 Huaxia science and Technology Park, hi tech Development Zone, Yijiang District, Wuhu, Anhui

Patentee after: ANHUI HUADONG PHOTOELECTRIC TECHNOLOGY INSTITUTE Co.,Ltd.

Address before: 241002 Huaxia science and Technology Park, hi tech Development Zone, Yijiang District, Wuhu, Anhui

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