JP3934302B2 - Vacuum defoaming device for anti-corrosion fixing material applied to components of mounted printed wiring boards - Google Patents

Vacuum defoaming device for anti-corrosion fixing material applied to components of mounted printed wiring boards Download PDF

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Publication number
JP3934302B2
JP3934302B2 JP2000085922A JP2000085922A JP3934302B2 JP 3934302 B2 JP3934302 B2 JP 3934302B2 JP 2000085922 A JP2000085922 A JP 2000085922A JP 2000085922 A JP2000085922 A JP 2000085922A JP 3934302 B2 JP3934302 B2 JP 3934302B2
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JP
Japan
Prior art keywords
base plate
fixing material
printed wiring
sealed container
vacuum defoaming
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.)
Expired - Fee Related
Application number
JP2000085922A
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Japanese (ja)
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JP2001274538A (en
Inventor
武彦 村上
Original Assignee
ミナミ株式会社
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Publication date
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Priority to JP2000085922A priority Critical patent/JP3934302B2/en
Publication of JP2001274538A publication Critical patent/JP2001274538A/en
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Expired - Fee Related legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
本発明は実装プリント配線基板の部品に塗布した腐食防止固定材の真空脱泡装置に関し、更に詳細には実装プリント配線基板の部品に腐食防止固定材を塗布した被処理物を受ける台板に振動を与えながら真空脱泡するようになしたことを特徴とする真空脱泡装置に係わる。
【0002】
【従来の技術】
例えば、部品を実装したプリント基板には、必要な部品に腐食防止固定材等の塗布が行われる。そして、それの塗布工程が終了すると乾燥工程に移され、加熱によって急速乾燥が行われる。
【0003】
そこで、斯かる腐食防止固定材等の塗布工程において、例えば適宜の部位に、適宜の大きさ、形状の貫通孔を設けたマスクを用い、スクリーン印刷によって塗布する場合に、腐食防止固定材等が貫通孔を抜け出る際にこれに気泡が混入し、特にメッシュ状にした貫通孔の場合には気泡の混入率が一層高くなる。
【0004】
そして、このように気泡が混入したまま乾燥工程で乾燥処理すると、加熱によって気泡が膨張して破裂し、腐食防止固定材等の表面に穴があいてしまう。そして、破裂による衝撃によって実装した部品の微細な部分が断裂することがある。また、穴があいた部分から酸化により劣化し易く、そしてまたこれにより強度的にも脆くなる。
【0005】
【発明が解決しようとする課題】
本発明は上記の点に鑑みなされたものであって、ゲル状態の腐食防止固定材等に混入している気泡を抜くことができると共に、その際に振動を与えながら処理することによって、気泡の抜け出た部分を早く埋めて処理を早くし且つ気泡を抜け出し易くして全体の抜け出し率も向上させることができるようになし、もって上記の問題点を悉く解消することができるようになした真空脱泡装置を提供せんとするものである。
【0006】
【課題を解決するための手段】
而して、本発明の要旨とするところは、脚部を有する皿状の容器本体と、該容器本体の上部開口を塞ぐ取手付きの蓋とでもって構成し、該容器本体の上部開口にゴム製パッキング材を取着すると共に、蓋に脱気口を設けてなる有蓋密封容器と、パイプを介して前記有蓋密封容器の脱気口に接続した吸気源と、前記有蓋密封容器内に配置し、下面にゴム等の弾性体を設けた被処理物を受ける台板と、前記台板の下部に配設し、該台板を所定の温度に加温するシートヒータと、前記台板に振動を与える振動発生装置とからなる実装プリント配線基板の部品に塗布した腐食防止固定材の真空脱泡装置にある。
0007
【発明の実施の形態】
以下、本発明の実施形態について、図面を参照しつつ説明する。
図1は本発明に係る真空脱泡装置の一部切欠して示した正面図、図2は同側面図、図3は同平面図である。
0008
図中、1は密封室としての有蓋密封容器である。また、該有蓋密封容器1は、本実施形態では、脚部2、2を有する皿状の容器本体3と、該容器本体3の上部開口3aを塞ぐ取手4、4付きの蓋5とでもって構成している。尚、該容器本体3の上部開口3aにはゴム製パッキング材3′を取着している。また、本実施形態では蓋5を取り外して開くようにしているが、ヒンジを用いて開閉するようにしてもよい。そしてまた、蓋5には脱気口6を設けている。
0009
7はパイプ8を介して前記有蓋密封容器1の脱気口6に接続した吸気源である。尚、該吸気源7としては従来公知のものを用いればよい。
0010
9は前記有蓋密封容器1内に配置した、被処理物を受ける台板である。10は該台板9の下面に設けたゴム等の弾性体である。11は台板9の下部に配設したシートヒータであり、台板9を所定の温度に加温するものである。
0011
12は前記台板9に振動を与える振動発生装置(バイブレータ)である。尚、該振動発生装置12としては従来公知のものを用いればよい。また、その他図中13はプリント配線基板、14は該プリント配線基板13に実装された部品、15は部品14上に塗布した腐食防止固定材を示す。
0012
次に、本実施形態の作用について説明する。
先ず、有蓋密封容器1の蓋5を開いて台板9上にプリント配線基板13を置く。そして蓋5を閉じた後吸気源7を作動し、有蓋密封容器1内を減圧する。そしてまたこれと同時に振動発生装置12を作動し、台板9を振動させる。この台板9の振動により気泡の抜け出た部分を素早く埋めて、処理を早くすることができる。またゲル状の腐食防止固定材15内の気泡は表面側に向かって移動し易くなる。したがって、表面側に抜け易くなる。また、大きな気泡から小さな気泡まで早く抜くことができ、全体の抜け出し率も良好である。そして更に、台板9をシートヒータ11によって所定の温度に加温すると、腐食防止固定材等の粘度を下げてゆるくなして、気泡の抜け出しをより促進し早く行わせることができる。尚、シートヒータ11は図示しない温度調節器によって温度を調節することができるようになしている。
0013
【発明の効果】
本発明は上記の如き構成、作用であるから、ゲル状態の腐食防止固定材等に混入している気泡を抜くことができる。そしてまた真空状態において振動を与えながら処理するものであるから、気泡の抜け出た部分を素早く埋めて処理を早くすることができる。また気泡の抜け出しを早くし且つ全体の抜け出し率も向上させることができるものである。加えて、所定の温度に加温しつつ真空脱泡するものであるから、ゲル状態の腐食防止固定材等の粘度が下がってゆるくなり、気泡の抜け出しをより促進し早く行わせることができる。
【図面の簡単な説明】
【図1】 本発明に係る真空脱泡装置の一部切欠して示した正面図である。
【図2】 本発明に係る真空脱泡装置の側面図である。
【図3】 本発明に係る真空脱泡装置の平面図である。
【符号の説明】
1 有蓋密封容器
3 皿状の容器本体
5 蓋
6 脱気口
7 吸気源
8 パイプ
9 台板
10 弾性体
11 シートヒータ
12 振動発生装置
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vacuum defoaming device for a corrosion-preventing fixing material applied to a component of a mounted printed wiring board, and more particularly, to a base plate that receives a workpiece to which a corrosion-preventing fixing material is applied. The present invention relates to a vacuum defoaming apparatus characterized in that the vacuum defoaming is performed while applying the above.
[0002]
[Prior art]
For example, a corrosion prevention fixing material or the like is applied to a necessary component on a printed board on which the component is mounted. When the coating process is completed, the process is transferred to a drying process, and rapid drying is performed by heating.
[0003]
Therefore, in the application process of such a corrosion prevention fixing material or the like, for example, when applying by screen printing using a mask having a through hole having an appropriate size and shape at an appropriate site, the corrosion prevention fixing material or the like Bubbles are mixed into the through-hole when exiting the through-hole, and in the case of a through-hole formed in a mesh shape, the bubble mixing rate is further increased.
[0004]
When the drying process is performed in the drying process with air bubbles mixed in in this manner, the air bubbles expand and burst due to heating, and there is a hole in the surface of the corrosion prevention fixing material or the like. And the fine part of the mounted component may be torn by the impact by bursting. Moreover, it is easy to deteriorate by oxidation from the holed portion, and this also makes it brittle in strength.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and it is possible to remove bubbles mixed in a corrosion-resistant fixing material in a gel state. Vacuum removal that fills the missing part quickly, speeds up the process, makes it easy to escape the bubbles, and improves the overall escape rate, thereby eliminating the above problems. is intended to St. provide AwaSo location.
[0006]
[Means for Solving the Problems]
Thus, the gist of the present invention is that it is constituted by a dish-shaped container body having legs and a lid with a handle for closing the upper opening of the container body, and the upper opening of the container body is made of rubber. A lidded sealed container in which a packing material is attached and a lid is provided with a deaeration port, an intake source connected to the deaeration port of the lidded sealed container via a pipe, and a lidded sealed container A base plate for receiving an object to be processed having an elastic body such as rubber on its lower surface, a seat heater disposed at a lower portion of the base plate and heating the base plate to a predetermined temperature, and a vibration on the base plate A vacuum defoaming device for a corrosion-preventing fixing material applied to a component of a mounted printed wiring board comprising a vibration generating device for imparting a vibration .
[ 0007 ]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
1 is a partially cutaway front view of a vacuum degassing apparatus according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a plan view thereof.
[ 0008 ]
In the figure, reference numeral 1 denotes a covered sealed container as a sealed chamber. Further, in this embodiment, the closed sealed container 1 has a dish-shaped container body 3 having legs 2 and 2 and a lid 5 with handles 4 and 4 for closing the upper opening 3 a of the container body 3. It is composed. A rubber packing material 3 ′ is attached to the upper opening 3 a of the container body 3. In the present embodiment, the lid 5 is removed and opened, but it may be opened and closed using a hinge. Further, the lid 5 is provided with a deaeration port 6.
[ 0009 ]
Reference numeral 7 denotes an intake source connected to the deaeration port 6 of the covered sealed container 1 via a pipe 8. As the intake source 7, a conventionally known one may be used.
[ 0010 ]
Reference numeral 9 denotes a base plate for receiving an object to be processed, which is disposed in the covered sealed container 1. Reference numeral 10 denotes an elastic body such as rubber provided on the lower surface of the base plate 9. Reference numeral 11 denotes a seat heater disposed under the base plate 9, which heats the base plate 9 to a predetermined temperature.
[ 0011 ]
Reference numeral 12 denotes a vibration generator (vibrator) that applies vibration to the base plate 9. A conventionally known device may be used as the vibration generator 12. In the other figures, 13 is a printed wiring board, 14 is a component mounted on the printed wiring board 13, and 15 is a corrosion-preventing fixing material applied on the component 14.
[ 0012 ]
Next, the operation of this embodiment will be described.
First, the lid 5 of the lidded sealed container 1 is opened and the printed wiring board 13 is placed on the base plate 9. Then, after closing the lid 5, the intake source 7 is operated, and the inside of the closed sealed container 1 is depressurized. At the same time, the vibration generator 12 is operated to vibrate the base plate 9. The portion where the bubbles have escaped can be quickly filled by the vibration of the base plate 9, thereby speeding up the processing. Further, the bubbles in the gel-like corrosion prevention fixing material 15 are easily moved toward the surface side. Therefore, it becomes easy to come off to the surface side. Moreover, it is possible to quickly extract from large bubbles to small bubbles, and the overall escape rate is good. Further, when the base plate 9 is heated to a predetermined temperature by the seat heater 11, the viscosity of the corrosion-preventing fixing material or the like is lowered and loosened, and the escape of bubbles can be further promoted and performed quickly. The seat heater 11 can be adjusted in temperature by a temperature controller (not shown).
[ 0013 ]
【The invention's effect】
Since the present invention has the configuration and operation as described above, it is possible to remove air bubbles mixed in the gel-like corrosion prevention fixing material and the like. In addition, since the processing is performed while applying vibration in a vacuum state, it is possible to quickly fill the portion where the bubbles have escaped and speed up the processing. In addition, it is possible to accelerate the escape of bubbles and improve the overall escape rate . In addition, since vacuum defoaming to shall While heating to a predetermined temperature, becomes loose with lowered viscosity, such as corrosion fixing material of the gel state can be performed quickly and promoted the escape of air bubbles .
[Brief description of the drawings]
FIG. 1 is a partially cutaway front view of a vacuum degassing apparatus according to the present invention.
FIG. 2 is a side view of the vacuum deaerator according to the present invention.
FIG. 3 is a plan view of a vacuum defoaming apparatus according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sealed container with lid 3 Plate-shaped container main body 5 Lid 6 Deaeration port 7 Intake source 8 Pipe 9 Base plate 10 Elastic body 11 Seat heater 12 Vibration generator

Claims (1)

脚部を有する皿状の容器本体と、該容器本体の上部開口を塞ぐ取手付きの蓋とでもって構成し、該容器本体の上部開口にゴム製パッキング材を取着すると共に、蓋に脱気口を設けてなる有蓋密封容器と、パイプを介して前記有蓋密封容器の脱気口に接続した吸気源と、前記有蓋密封容器内に配置し、下面にゴム等の弾性体を設けた被処理物を受ける台板と、前記台板の下部に配設し、該台板を所定の温度に加温するシートヒータと、前記台板に振動を与える振動発生装置とからなる実装プリント配線基板の部品に塗布した腐食防止固定材の真空脱泡装置。Consists of a dish-shaped container body having legs and a lid with a handle that closes the upper opening of the container body, and a rubber packing material is attached to the upper opening of the container body and deaerated on the lid. A closed sealed container provided with a mouth, an intake source connected to a deaeration port of the closed sealed container via a pipe, and an object to be processed provided in the covered sealed container and provided with an elastic body such as rubber on the lower surface A mounting printed wiring board comprising: a base plate for receiving an object; a seat heater disposed at a lower portion of the base plate, for heating the base plate to a predetermined temperature; and a vibration generator for applying vibration to the base plate. Vacuum defoaming device for anti-corrosion fixing material applied to parts.
JP2000085922A 2000-03-27 2000-03-27 Vacuum defoaming device for anti-corrosion fixing material applied to components of mounted printed wiring boards Expired - Fee Related JP3934302B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000085922A JP3934302B2 (en) 2000-03-27 2000-03-27 Vacuum defoaming device for anti-corrosion fixing material applied to components of mounted printed wiring boards

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000085922A JP3934302B2 (en) 2000-03-27 2000-03-27 Vacuum defoaming device for anti-corrosion fixing material applied to components of mounted printed wiring boards

Publications (2)

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JP2001274538A JP2001274538A (en) 2001-10-05
JP3934302B2 true JP3934302B2 (en) 2007-06-20

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5316901B2 (en) * 2009-12-07 2013-10-16 山栄化学株式会社 Printed wiring board and manufacturing method thereof
JP5136569B2 (en) * 2010-01-21 2013-02-06 三菱電機株式会社 Gel injector and method of manufacturing power module using the same
CN106163888B (en) * 2014-04-14 2019-06-28 株式会社小糸制作所 Foreign substance removing apparatus

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