CN208545495U - A kind of groove body for reducing Bivalent Tin and being oxidized to tetravalent tin rate - Google Patents
A kind of groove body for reducing Bivalent Tin and being oxidized to tetravalent tin rate Download PDFInfo
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- CN208545495U CN208545495U CN201821193560.3U CN201821193560U CN208545495U CN 208545495 U CN208545495 U CN 208545495U CN 201821193560 U CN201821193560 U CN 201821193560U CN 208545495 U CN208545495 U CN 208545495U
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- Prior art keywords
- groove body
- tin
- medical fluid
- body frame
- oxidized
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Abstract
The utility model discloses a kind of groove body for reducing Bivalent Tin and being oxidized to tetravalent tin rate, including horizontal feed structure, upper groove body, lower groove, medical fluid loop structure, discharge line, suction line are equipped between upper groove body and lower groove, it is loaded in lower groove containing stannous medical fluid, horizontal feed structure includes: conveyor belt, roller, and workpiece to be plated is placed in conveyor belt；Upper groove body includes: groove body frame, water bed baffle, and horizontal feed structure is located at the inside of groove body frame, and water bed baffle is located at the bottom of conveyor belt；Medical fluid loop structure includes: circulation line, liquid medicine sprayer, and circulation line is set to the two sides of groove body frame length direction and one end protrudes into the bottom of groove body frame, and the other end extends to the upper end of workpiece to be plated.The utility model reduces the exchange capacity of medical fluid in lower groove, and the contact area of medical fluid and air is small, and the Bivalent Tin avoided in medical fluid is oxidised with air to tetravalent tin, improves the deposition rate of chemical tin.
Description
Technical field
The utility model relates to tin equipment fields, and in particular to a kind of reduction Bivalent Tin is oxidized to tetravalent tin rate
Groove body.
Background technique
Existing PCB element, passive device, semiconductor element, in order to protect lead frame of the leakage outside colloid not by oxygen
Change, and weld interface is provided, it usually needs plates tin coating in product surface.Tin coating can protect base metal from oxidation
And keep the solderability of base metal.
Refering to shown in Fig. 2 in Figure of description, usually used horizontal feed equipment will be to be plated for existing tin plating groove body design
Workpiece transport, and the main structure of groove body uses upper and lower two groove bodies, horizontal feed equipment is placed on upper groove body, and water pump is by lower slot
Intracorporal medical fluid is extracted into slot to impregnate conveying workpieces, and then medical fluid flows back into lower slot again, so that the suction inlet a of water pump is in lower slot
Body, the outlet b of medical fluid is in upper groove body.Exchange will lead to a large amount of air and be involved in above and below a large amount of liquid medicine, and mixed air is led
It causes the Bivalent Tin in medical fluid to be oxidized to tetravalent tin, medical fluid loop structure is also lacked in upper groove body, on the one hand influences chemical tin
Deposition rate leads to the tin thickness low LCL deposited in the same time, and secondly tetravalent tin is a kind of deposit, will lead to tank liquor
Interior impurity influences the performance of heavy tin layers too much, and the water circulating pump being arranged in lower groove also increases equipment cost.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is to provide a kind of reduction Bivalent Tins to be oxidized to
The groove body of tetravalent tin rate, by the way that suction line to be arranged in the bottom of upper groove body, so that the sucking and discharge of medical fluid are in slot
It is carried out in body frame, and cooperates medical fluid loop structure, reduce the exchange capacity of medical fluid in lower groove, while the medical fluid in upper groove body
It flows up and down gently, so that the contact area of medical fluid and air is small, the Bivalent Tin avoided in medical fluid is oxidised with air to tetravalence
Tin improves the deposition rate of chemical tin.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of groove body for reducing Bivalent Tin and being oxidized to tetravalent tin rate, including horizontal feed structure, upper groove body, lower slot
Body is equipped with medical fluid loop structure, discharge line, suction line, is loaded in lower groove containing two between upper groove body and lower groove
The medical fluid of valence tin, the horizontal feed structure include: conveyor belt, roller, and workpiece to be plated is placed in conveyor belt；
The upper groove body includes: groove body frame, water bed baffle, and horizontal feed structure is located at the inside of groove body frame, water bed baffle
Positioned at the bottom of conveyor belt；
The side wall of lower groove is protruded into one end of the suction line, and the other end protrudes into the bottom of groove body frame；
The discharge line includes: a main discharge, more secondary discharge pipes, one end of more secondary discharge pipes and groove body frame
Bottom connection, the other end connect with main discharge, and the other end of main discharge protrudes into the side wall of lower groove；
The medical fluid loop structure includes: circulation line, liquid medicine sprayer, and circulation line is set to the two of groove body frame length direction
Side and one end protrude into the bottom of groove body frame, and the other end extends to the upper end of workpiece to be plated, and liquid medicine sprayer passes through secondary circulation line
It is connect with circulation line.
As further program of the utility model, the suction line is equipped with booster pump.
As further program of the utility model, the circulation line is equipped with shut-off valve, water knife booster pump.
It is equipped with several unhurried current plates from top to bottom as further program of the utility model, inside the groove body frame, delays
Flowing plate is equipped with multiple unhurried current holes.
As further program of the utility model, the unhurried current hole on the unhurried current plate of the setting from lower to lower is staggeredly set
It sets, and the quantity in the unhurried current hole on unhurried current plate from top to bottom is constantly reduced.
As further program of the utility model, the height of the main discharge is higher than suction line bottom level.
As further program of the utility model, it is high to be higher than groove body frame bottom for the liquid level of medical fluid in the lower groove
Degree.
The utility model has the beneficial effects that
1, the reduction Bivalent Tin of the utility model is oxidized to the groove body of tetravalent tin rate, by the way that suction line setting exists
The bottom of upper groove body so that the sucking and discharge of medical fluid carry out in groove body frame, and cooperates medical fluid loop structure, reduces
The exchange capacity of medical fluid in lower groove, while the medical fluid in upper groove body flows up and down gently, so that the contact area of medical fluid and air
Small, the Bivalent Tin avoided in medical fluid is oxidised with air to tetravalent tin, improves the deposition rate of chemical tin.
2, the supercharging amount of the booster pump on suction line be less than water knife booster pump supercharging amount so that medical fluid from lower groove into
Enter the rate decline of upper groove body, at the same the medical fluid of groove body frame bottom from circulation line, secondary circulation line, liquid medicine sprayer be sprayed to by
It plates on workpiece, by workpiece to be plated infiltration in medical fluid, greatly reduces the additive amount of medical fluid, while being conducive to the uniform plating of workpiece
Tin.
3, the unhurried current plate being arranged in groove body frame, is conducive to be sucked into inside upper groove body and upper groove body in medical fluid from lower groove and follow
When ring, slow down the rate flowed up and down, so that medical fluid is flowed along unhurried current hole, while the unhurried current hole on unhurried current plate from top to bottom
Quantity is constantly reduced, so that the rate that medical fluid moves down slows down significantly, reduces medical fluid cycle rate, so that medical fluid and air
Contact area greatly reduce.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the structural schematic diagram that the utility model reduces that Bivalent Tin is oxidized to the groove body of tetravalent tin rate.
Fig. 2 is the structural schematic diagram for reducing Bivalent Tin in the prior art and being oxidized to the groove body of tetravalent tin rate.
In figure: 100, upper groove body, 110, groove body frame, 111, unhurried current plate, 112, unhurried current hole, 120, water bed baffle, 200, under
Groove body, 310, main discharge, 320, secondary discharge pipe, 400, suction line, 410, booster pump, 500, conveyor belt, 600, roller,
700, workpiece to be plated, 810, circulation line, 820, liquid medicine sprayer, 830, secondary circulation line, 840, shut-off valve, 850, the pressurization of water knife
Pump.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
Refering to Figure 1, present embodiments providing a kind of groove body for reducing Bivalent Tin and being oxidized to tetravalent tin rate, packet
Include horizontal feed structure, upper groove body 100, lower groove 200, between upper groove body 100 and lower groove 200 be equipped with medical fluid loop structure,
Discharge line, suction line 400 are loaded with containing stannous medical fluid in lower groove 200.Wherein, horizontal feed structure includes:
Conveyor belt 500, roller 600 are placed with workpiece 700 to be plated in conveyor belt 500.Upper groove body 100 includes: groove body frame 110, water
Bed block plate 120, horizontal feed structure are located at the inside of groove body frame 110, and water bed baffle 120 is located at the bottom of conveyor belt 500.Under
The liquid level of medical fluid is higher than 110 bottom level of groove body frame in groove body 200.Lower groove 200 is protruded into one end of suction line 400
Side wall, the other end protrude into the bottom of groove body frame 110.Discharge line includes: a main discharge 310, more secondary discharge pipes 320,
One end of more secondary discharge pipes 320 is connect with the bottom of groove body frame 110, and the other end is connect with main discharge 310, main discharge
310 other end protrudes into the side wall of lower groove 200.The height of main discharge 310 is higher than 400 bottom level of suction line.Wherein,
The supercharging amount of booster pump on suction line is less than the supercharging amount of water knife booster pump, so that medical fluid enters upper groove body from lower groove
Rate decline, while the medical fluid of groove body frame bottom is sprayed on workpiece to be plated from circulation line, secondary circulation line, liquid medicine sprayer,
By workpiece to be plated infiltration in medical fluid, the additive amount of medical fluid is greatly reduced, while being conducive to the uniform tin plating of workpiece.
As shown in fig.1, medical fluid loop structure includes: circulation line 810, liquid medicine sprayer 820, circulation line 810 is set to
The two sides of 110 length direction of groove body frame and one end protrude into the bottom of groove body frame 110, and the other end extends to workpiece 700 to be plated
Upper end, liquid medicine sprayer 820 pass through secondary circulation line 830 and connect with circulation line 810.Wherein, suction line 400 is equipped with pressurization
Pump 410.Circulation line 810 is equipped with shut-off valve 840, water knife booster pump 850.It is equipped with from top to bottom inside groove body frame 110 several
A unhurried current plate 111, unhurried current plate 111 are equipped with multiple unhurried current holes 112.Unhurried current hole 112 on the unhurried current plate 111 of the setting from lower to lower
It is staggered, and the quantity in the unhurried current hole 112 on unhurried current plate 111 from top to bottom is constantly reduced.Unhurried current plate is conducive in medical fluid
When being sucked into circulation inside upper groove body and upper groove body from lower groove, slow down the rate flowed up and down, so that medical fluid is along unhurried current hole stream
It is dynamic, while the quantity in the unhurried current hole on unhurried current plate from top to bottom is constantly reduced, so that the rate that medical fluid moves down subtracts significantly
It is slow, medical fluid cycle rate is reduced, so that the contact area of medical fluid and air greatly reduces.
The course of work that the reduction Bivalent Tin of the present embodiment is oxidized to the groove body of tetravalent tin rate is as follows:
1) booster pump 410 is opened, so that the medical fluid in lower groove 200 enters in upper groove body 100 from suction line 400, is made
Liquid level reaches the height close to 120 upper end of water bed baffle, while medical fluid can be discharged to from secondary discharge pipe 320, main discharge 310
In lower groove 200；
2) roller 600 rolls the transmission for driving conveyor belt 500, the workpiece to be plated 700 that will be placed in conveyor belt 500
It transports to the bottom of liquid medicine sprayer 820；
3) shut-off valve 840 and water knife booster pump 850 are opened, so that medical fluid is from the bottom of groove body frame 110 along unhurried current plate 111
On unhurried current hole 112, then through circulation line 810, secondary circulation line 830, that liquid medicine sprayer 820 is sprayed to workpiece 700 to be plated is enterprising
Row is tin plating.
Above content is only to the utility model structure example and explanation, the technology people of affiliated the art
Member makes various modifications or additions to the described embodiments or is substituted in a similar manner, without departing from reality
With novel structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (7)
1. a kind of Bivalent Tin that reduces is oxidized to the groove body of tetravalent tin rate, including horizontal feed structure, upper groove body (100), under
Groove body (200) is equipped with medical fluid loop structure, discharge line, suction line between upper groove body (100) and lower groove (200)
(400), it is loaded in lower groove (200) containing stannous medical fluid, which is characterized in that the horizontal feed structure includes: defeated
Belt (500), roller (600) are sent, is placed with workpiece to be plated (700) in conveyor belt (500)；
The upper groove body (100) includes: groove body frame (110), water bed baffle (120), and horizontal feed structure is located at groove body frame (110)
Inside, water bed baffle (120) is located at the bottom of conveyor belt (500)；
The side wall of lower groove (200) is protruded into one end of the suction line (400), and the other end protrudes into the bottom of groove body frame (110)；
The discharge line includes: a main discharge (310), more secondary discharge pipes (320), more secondary discharge pipes (320)
One end is connect with the bottom of groove body frame (110), and the other end is connect with main discharge (310), and the other end of main discharge (310) is stretched
Enter the side wall of lower groove (200)；
The medical fluid loop structure includes: circulation line (810), liquid medicine sprayer (820), and circulation line (810) is set to groove body frame
(110) two sides of length direction and one end protrude into the bottom of groove body frame (110), and the other end extends to workpiece to be plated (700)
Upper end, liquid medicine sprayer (820) pass through secondary circulation line (830) and connect with circulation line (810).
2. the groove body according to claim 1 for reducing Bivalent Tin and being oxidized to tetravalent tin rate, which is characterized in that the suction
Enter pipeline (400) equipped with booster pump (410).
3. the groove body according to claim 1 for reducing Bivalent Tin and being oxidized to tetravalent tin rate, which is characterized in that described to follow
Endless tube road (810) is equipped with shut-off valve (840), water knife booster pump (850).
4. the groove body according to claim 1 for reducing Bivalent Tin and being oxidized to tetravalent tin rate, which is characterized in that the slot
Body frame (110) is internal to be equipped with several unhurried currents plate (111) from top to bottom, and unhurried current plate (111) is equipped with multiple unhurried current holes (112).
5. the Bivalent Tin according to claim 4 that reduces is oxidized to the groove body of tetravalent tin rate, which is characterized in that it is described from
The unhurried current hole (112) arrived down on the unhurried current plate (111) of lower setting is staggered, and slow on unhurried current plate (111) from top to bottom
The quantity of discharge orifice (112) is constantly reduced.
6. the groove body according to claim 1 for reducing Bivalent Tin and being oxidized to tetravalent tin rate, which is characterized in that the master
The height of discharge pipe (310) is higher than suction line (400) bottom level.
7. the groove body according to claim 1 for reducing Bivalent Tin and being oxidized to tetravalent tin rate, which is characterized in that under described
The liquid level of groove body (200) interior medical fluid is higher than groove body frame (110) bottom level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821193560.3U CN208545495U (en) | 2018-07-26 | 2018-07-26 | A kind of groove body for reducing Bivalent Tin and being oxidized to tetravalent tin rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821193560.3U CN208545495U (en) | 2018-07-26 | 2018-07-26 | A kind of groove body for reducing Bivalent Tin and being oxidized to tetravalent tin rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208545495U true CN208545495U (en) | 2019-02-26 |
Family
ID=65425455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821193560.3U Expired - Fee Related CN208545495U (en) | 2018-07-26 | 2018-07-26 | A kind of groove body for reducing Bivalent Tin and being oxidized to tetravalent tin rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208545495U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111676470A (en) * | 2020-05-29 | 2020-09-18 | 广东天承科技有限公司 | Simple and soluble high-valence tin reduction method |
-
2018
- 2018-07-26 CN CN201821193560.3U patent/CN208545495U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111676470A (en) * | 2020-05-29 | 2020-09-18 | 广东天承科技有限公司 | Simple and soluble high-valence tin reduction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190226 Termination date: 20210726 |