CN104947091A - Circulation pipeline of activation cylinder of gold immersion process for printed circuit board - Google Patents
Circulation pipeline of activation cylinder of gold immersion process for printed circuit board Download PDFInfo
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- CN104947091A CN104947091A CN201510236417.2A CN201510236417A CN104947091A CN 104947091 A CN104947091 A CN 104947091A CN 201510236417 A CN201510236417 A CN 201510236417A CN 104947091 A CN104947091 A CN 104947091A
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- circuit board
- printed circuit
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Abstract
The invention discloses a circulation pipeline of an activation cylinder of a gold immersion process for a printed circuit board. The circulation pipeline comprises a circulation pump arranged on one side of an activation cylinder, an activation pump water-in pipe arranged on the same side as the circulation pump, an activation pump water-out pipe opposite to the activation pump water-in pipe and a cooling water pipe disc arranged at the bottom in the activation cylinder, wherein the part of the activation pump water-out pipe in the activation cylinder comprises a vertical pipe and multiple horizontal pipes communicated with each other; the connection part of the horizontal pipes is oblique to the horizontal direction; the vertical pipe is communicated with the connection part; and multiple holes are formed in the horizontal pipe. Since multiple holes are formed in the horizontal pipe, activation medicine liquid can be uniformly sprayed to each part in the activation cylinder through the holes in the horizontal pipe, thus the circuit board is uniformly activated, the phenomena of skip plating and gold leakage are avoided, the scrap rate caused by skip plating and gold immersion is reduced by 50% or more, and the production cost is remarkably reduced; and moreover, since the activation medicine liquid sprayed out of the holes is uniformly distributed in the activation cylinder, the concentration of the medicine liquid in each part in the cylinder is uniform, and the activation effect is enhanced.
Description
Technical field
The invention belongs to circuit card manufacture field, relate in particular to a kind of plating of printed circuit board metal working sequence active cylinder circulation line.
Background technology
At present, printed circuit board usually needs heavy nickel and gold on base material copper printed circuit board surface color is stable, luminance brightness is good, coating is smooth, good weldability to make in making processes.Due in electroplating technology, copper is positioned at after nickel, so copper face activation just can must be carried out chemical nickel plating, if activate the uneven quality that directly will affect circuit board product in reactivation process.In prior art, the active cylinder that reactivation process adopts comprises recycle pump, the activation solution import be connected with recycle pump, is arranged at the cooling water coil bottom active cylinder and is positioned at the pump reflux pipe at active cylinder top with recycle pump connection outlet, there is following defect in this active cylinder equipment as shown in Figure 1: pump reflux pipe outlet liquid medicine directly flows and flows back to active cylinder by active cylinder top, evenly can not be ejected into each position of cylinder, cause producing plate activation inequality, produce plate easy plating leakage and ooze gold, namely wiring board edge electroless nickel layer is thin or do not plate electroless nickel layer; In addition, liquid medicine is directly toward activation solution pump inlet backflow after flowing out from the outlet of pump reflux pipe, and local location becomes stagnant condition, can not see whether active cylinder liquid circulates; The activation liquid medicine added can not Rapid Circulation to each position of cylinder.
Summary of the invention
For this reason, technical problem to be solved by this invention is that in prior art, in active cylinder circulation tube, the outlet of pump reflux pipe is directly arranged at active cylinder top, liquid medicine directly flows and flows back to active cylinder by active cylinder top, sprays uneven, and circuit card easily occurs that the problem of gold is oozed in plating leakage; The activation solution pump inlet and liquid medicine directly refluxes back, local is not flowed, cannot be seen cylinder inner liquid medicine loop condition, and the activation liquid medicine added can not be circulated to rapidly each position of active cylinder; Thus proposition one activates evenly, oozes golden situation without plating leakage, liquid medicine can be circulated to rapidly the plating of printed circuit board metal working sequence active cylinder circulation line at each position of active cylinder.
For solving the problems of the technologies described above, technical scheme of the present invention is:
The invention provides a kind of plating of printed circuit board metal working sequence active cylinder circulation line, comprise be arranged at active cylinder side recycle pump, be arranged at that described active cylinder is inner is positioned at side with described recycle pump and the activation pump water inlet mouth be communicated with, one end are connected to the described recycle pump the other end and go deep into described active cylinder inside and be positioned at the activation mercury rising pipe of described activation pump water inlet mouth offside and be arranged at the water-cooled tube dish of described active cylinder inner bottom part; Wherein, the described activation water pump outlet pipe in activation cylinder body comprises vertical pipe and mutually through level pipe, and connection section and the horizontal direction of described level pipe are obliquely installed, and described vertical pipe is communicated with described connection section, and described level pipe is provided with some perforates;
Described level pipe is at least one, if one or more is then in mutual through shape distribution.
Further, described opening diameter is 3.2-5.0mm, and the distance between adjacent apertures is 80-100mm.
Further, described connection section and horizontal direction are that 45° angle is arranged.
Further, described activation pump water inlet mouth is 8-10cm apart from the distance bottom described active cylinder.
Further, described activation mercury water inlet pipe is detachable pipeline.
Further, described recycle pump is acid and alkali-resistance pumping.
Further, described pumping material is the one in fiber reinforced polypropylene, chlorinated polyvinyl chloride, polyvinylidene difluoride (PVDF) or polyphenylene sulfide.
Further, the power of described pumping is 0.5-1.0P.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) plating of printed circuit board metal working sequence active cylinder circulation line of the present invention, comprise be arranged at active cylinder side recycle pump, be arranged at active cylinder inner and be positioned at the activation pump water inlet pipe of side with recycle pump, one end is connected to the recycle pump the other end to go deep into active cylinder inner and be positioned at the activation mercury rising pipe activating pump water inlet pipe offside and the water-cooled tube dish being arranged at active cylinder inner bottom part; The part that activation water pump outlet pipe is positioned at described activation cylinder body comprises vertical pipe and some sections of mutual through level pipes, connection section and the horizontal direction of some sections of mutual through level pipes are obliquely installed, vertical pipe is communicated with described connection section, level pipe is provided with some perforates.The part that activation water pump outlet pipe is positioned at active cylinder is set to some sections of mutual through level pipes, and it offers some perforates, activation liquid medicine can be made evenly to be sprayed onto each position in active cylinder by the perforate on level pipe, circuit card is made to activate evenly, not easily there is plating leakage or ooze golden situation, plating leakage can be made to ooze golden condemnation factor and to reduce by more than 50%, significantly reduce production cost; The activation liquid medicine sprayed by perforate is uniformly distributed in active cylinder, makes each several part chemical concentration in cylinder homogeneous, enhances activation effect.
(2) plating of printed circuit board metal working sequence active cylinder circulation line of the present invention, activation pump water inlet mouth is 8-10cm apart from the distance bottom described active cylinder, and activation mercury water inlet pipe is detachable pipeline.The water-in of activation pump water inlet pipe is arranged at a segment distance bottom active cylinder, can prevent from activating the import that liquid medicine is directly back to recycle pump, cannot be flowed in liquid local in cylinder, the situation that cylinder inner liquid medicine circulates cannot be seen, cause accurately to control soak time; The liquid medicine added can be prevented in addition cannot to be circulated to rapidly each position in active cylinder; but be directly back to recycle pump from activation pump water inlet pipe; reduce activation efficiency; activation pump water inlet pipe is detachable pipeline; pull down when maintenance or drug row water; accelerate the discharge rate of liquid medicine, install when normal activation is produced, simple to operation.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of active cylinder circulation line in prior art;
Fig. 2 is the structural representation of plating of printed circuit board metal working sequence active cylinder circulation line of the present invention.
In figure, Reference numeral is expressed as: 1-active cylinder; 2-recycle pump; 3-activates pump water inlet mouth; 4-activates mercury rising pipe; 41-vertical pipe; 42-level pipe; 43-connection section; 44-perforate; 5-water-cooled tube dish; 6-activates pump water inlet pipe.
Embodiment
Embodiment
The present embodiment provides a kind of plating of printed circuit board metal working sequence active cylinder circulation line, as shown in Figure 2, comprise the recycle pump 2 being arranged at active cylinder 1 side, be arranged at described active cylinder 1 inside and be positioned at side and the activation pump water inlet mouth 3 be communicated with described recycle pump 2, one end is connected to described recycle pump 2 the other end and gos deep into described active cylinder 1 inside and be positioned at the activation mercury rising pipe 4 of described activation pump water inlet mouth 3 offside and be arranged at the water-cooled tube dish 5 of described active cylinder 1 inner bottom part, the part that described activation water pump outlet pipe 4 is positioned at described active cylinder 1 comprises vertical pipe 41 and some sections of mutual through level pipes 42, two sections are preferably in the present embodiment, connection section 43 and the horizontal direction of described two sections of mutual through level pipes 42 are obliquely installed, angle of inclination is 45 °, described vertical pipe 41 is communicated with described connection section 43, described level pipe 42 is provided with some perforates 44, the diameter of described perforate 44 is 5mm, distance between adjacent apertures is 50mm.
Plating of printed circuit board metal working sequence active cylinder circulation line described in the present embodiment, activation liquid medicine is evenly sprayed onto each position in active cylinder 1 by the perforate 44 on level pipe 42, circuit card is made to activate evenly, not easily there is plating leakage or ooze golden situation, plating leakage can be made to ooze golden condemnation factor and to reduce by more than 50%, significantly reduce production cost;
Further, described activation pump water inlet mouth 3 is arranged on activation pump water inlet pipe 6, and described activation pump water inlet mouth 3 is 10cm apart from the distance bottom described active cylinder 1, and described activation mercury water inlet pipe 6 is detachable pipeline.Arranging of described activation mercury water inlet pipe 6 can prevent from activating the import that liquid medicine is directly back to recycle pump 2, cannot be flowed in liquid local in cylinder, the situation that cylinder inner liquid medicine circulates cannot be seen, cause accurately to control soak time, the liquid medicine added can be prevented in addition cannot to be circulated to rapidly each position in active cylinder 1; Detachable pipeline can be pulled down when maintenance or drug row water, accelerates the discharge rate of liquid medicine, installs when normal activation is produced, simple to operation.
Described recycle pump 2 is acid and alkali-resistance pumping, and be the one in fiber reinforced polypropylene, chlorinated polyvinyl chloride, polyvinylidene difluoride (PVDF) or polyphenylene sulfide material, the present embodiment is preferably fiber reinforced polypropylene, and the power of described recycle pump 2 is 0.5P.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (8)
1. a plating of printed circuit board metal working sequence active cylinder circulation line, comprise the recycle pump being arranged at active cylinder side, be arranged at described active cylinder inside and be positioned at side and the activation pump water inlet mouth be communicated with described recycle pump, one end is connected to the described recycle pump the other end and gos deep into described active cylinder inside and be positioned at the activation mercury rising pipe of described activation pump water inlet mouth offside and be arranged at the water-cooled tube dish of described active cylinder inner bottom part, it is characterized in that, described activation water pump outlet pipe in activation cylinder body comprises vertical pipe and mutually through level pipe, connection section and the horizontal direction of described level pipe are obliquely installed, described vertical pipe is communicated with described connection section, described level pipe is provided with some perforates,
Described level pipe is at least one, if one or more is then in mutual through shape distribution.
2. plating of printed circuit board metal working sequence active cylinder circulation line as claimed in claim 1, it is characterized in that, described opening diameter is 3.2-5.0mm, and the distance between adjacent apertures is 80-100mm.
3. plating of printed circuit board metal working sequence active cylinder circulation line as claimed in claim 1 or 2, it is characterized in that, described connection section and horizontal direction are that 45° angle is arranged.
4. printed board turmeric operation active cylinder circulation line as claimed in claim 3, is characterized in that, described activation pump water inlet mouth is arranged on activation pump water inlet pipe, is 8-10cm apart from the distance bottom described active cylinder.
5. plating of printed circuit board metal working sequence active cylinder circulation line as claimed in claim 4, it is characterized in that, described activation mercury water inlet pipe is detachable pipeline.
6. the printed circuit board plate turmeric operation active cylinder circulation line as described in claim 4 or 5, it is characterized in that, described recycle pump is acid and alkali-resistance pumping.
7. printed circuit board plate turmeric operation active cylinder circulation line as claimed in claim 6, it is characterized in that, described pumping material is the one in fiber reinforced polypropylene, chlorinated polyvinyl chloride, polyvinylidene difluoride (PVDF) or polyphenylene sulfide.
8. printed circuit board plate turmeric operation active cylinder circulation line as claimed in claim 6, it is characterized in that, the power of described pumping is 0.5-1.0P.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510236417.2A CN104947091A (en) | 2015-05-11 | 2015-05-11 | Circulation pipeline of activation cylinder of gold immersion process for printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510236417.2A CN104947091A (en) | 2015-05-11 | 2015-05-11 | Circulation pipeline of activation cylinder of gold immersion process for printed circuit board |
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| Publication Number | Publication Date |
|---|---|
| CN104947091A true CN104947091A (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510236417.2A Pending CN104947091A (en) | 2015-05-11 | 2015-05-11 | Circulation pipeline of activation cylinder of gold immersion process for printed circuit board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114164420A (en) * | 2021-12-07 | 2022-03-11 | 上达电子（深圳）股份有限公司 | Tin melting tank structure and use method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2259636Y (en) * | 1996-11-05 | 1997-08-13 | 北京航空航天大学 | Three-dimensional overflow lens dyeing device |
| CN201420101Y (en) * | 2009-03-24 | 2010-03-10 | 东莞市宏德电子设备有限公司 | Special electroplating bath body structure |
| CN102011169A (en) * | 2009-09-08 | 2011-04-13 | 上村工业株式会社 | Electroplating apparatus and electroplating method |
| CN204080169U (en) * | 2014-09-01 | 2015-01-07 | 梅州市志浩电子科技有限公司 | The electroplating liquid medicine jet flow recycle system of printed circuit board (PCB) |
-
2015
- 2015-05-11 CN CN201510236417.2A patent/CN104947091A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2259636Y (en) * | 1996-11-05 | 1997-08-13 | 北京航空航天大学 | Three-dimensional overflow lens dyeing device |
| CN201420101Y (en) * | 2009-03-24 | 2010-03-10 | 东莞市宏德电子设备有限公司 | Special electroplating bath body structure |
| CN102011169A (en) * | 2009-09-08 | 2011-04-13 | 上村工业株式会社 | Electroplating apparatus and electroplating method |
| CN204080169U (en) * | 2014-09-01 | 2015-01-07 | 梅州市志浩电子科技有限公司 | The electroplating liquid medicine jet flow recycle system of printed circuit board (PCB) |
Non-Patent Citations (1)
| Title |
|---|
| 电脑报社编: "《装机圣手》", 30 April 2005 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114164420A (en) * | 2021-12-07 | 2022-03-11 | 上达电子（深圳）股份有限公司 | Tin melting tank structure and use method thereof |
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Application publication date: 20150930 |