CN107570913A - A kind of processing technology of tin cream - Google Patents
A kind of processing technology of tin cream Download PDFInfo
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- CN107570913A CN107570913A CN201710918969.0A CN201710918969A CN107570913A CN 107570913 A CN107570913 A CN 107570913A CN 201710918969 A CN201710918969 A CN 201710918969A CN 107570913 A CN107570913 A CN 107570913A
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- mill platform
- batch mixing
- tin cream
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Abstract
The invention discloses a kind of processing technology of tin cream in tin cream manufacture field; including solder flux configuration, welding powder configuration, batch mixing step; mixing device is set up in batch mixing step; batch mixing is carried out by mixing device; during use external vacuum and internal inert gas shielding, batch mixing of milling is carried out by abrasive material mechanism and mixing mechanism so that solder powder even particle distribution in solder(ing) paste; multiple control is carried out to solder(ing) paste process so that the solder(ing) paste better quality of shaping.
Description
Technical field
The present invention relates to tin cream manufacture field, and in particular to a kind of processing technology of tin cream.
Background technology
Solder(ing) paste is applied to electronic product machining field, is a kind of crucial welding material.Solder(ing) paste is mainly by solder
The paste stabilized mixture of the compositions such as powder, scaling powder, scaling powder mainly include activator, thixotropic agent, solvent etc., and solder(ing) paste is in table
Cementation element is played in the mounting technology of face and promotes solder, removes oxide, trace impurity and adsorption layer, protection surface prevents
Re-oxidation, form the effect such as firm metallurgical binding.Solder-Paste Printing is surface-pasted first procedures of SMT, and it is affected
The techniques such as follow-up paster, reflow welding, cleaning, test, and directly decide the reliability of product.
Tin cream need under cryogenic could the long period preservation, before tin cream takes out use under cryogenic conditions
Need to rise again under air-proof condition and be allowed to reach balance with room temperature, because tin cream has hygroscopicity in temperature-rise period, be exposed to
Moisture expansion can be absorbed by being risen again in air, and water evaporates and blown a large amount of generations that can cause tin sweat(ing) in tin cream.Further, since tin
Cream has two kinds of main components of metal and scaling powder, and metal ingredient proportion compared with conference in tin cream to sinking, cause tin cream to make
Make various composition uniform with that must be stirred.Tin cream also needs to ensure that solder powder particle size distribution is uniform in process,
Avoid influenceing to print in use, put note and welding effect.
The content of the invention
It is uneven to solve solder powder particle size distribution in tin cream the invention is intended to provide a kind of processing technology of tin cream
The problem of.
To reach above-mentioned purpose, basic technology scheme of the invention is as follows：A kind of processing technology of tin cream, including solder flux are matched somebody with somebody
Put, welding powder configuration, batch mixing step, batch mixing comprises the following steps：
A, mixing device is set up, cabinet is set, is set up in parallel solder flux case, motor, welding powder case in enclosure top, cabinet inside is set
Liang Ge abrasive materials mechanism and a mixing mechanism, abrasive material mechanism include abrasive material channel mould, and the middle part of abrasive material channel mould is provided with circular first
Groove, abrasive material channel mould lower inside wall are provided with the first feed well of annular, and bottom wall is provided with swirl type on the inside of abrasive material channel mould
Ripple is raised, and the raised outside of ripple is provided with the first blow tank of annular, and the first blow tank is communicated with the first discharge nozzle；First is recessed
The first mill platform of cylinder is rotatably connected in groove, the top of the first mill platform is provided with biasing post, and the bottom of the first mill platform is provided with footpath
To first charging by-path, first mill platform lower end in the middle part of be provided with first charging main stem, first charging by-path connection first charging
Groove and the first charging main stem, the bottom of the first mill platform are meshed with ripple projection；Mixing mechanism includes batch mixing channel mould, batch mixing channel mould
Middle part be provided with the second circular groove, the second groove upper inner wall is provided with the second feed well of annular, batch mixing channel mould
Bottom inner portion is provided with the first discharging channel of radial direction, and ripple projection, the ripple that swirl type also is provided with the bottom wall of batch mixing channel mould inner side are convex
The outside risen is provided with the second blow tank of annular, and the first discharging channel connects with the second blow tank；It is rotatably connected in second groove
Second mill platform of cylinder, the top of the second mill platform also are provided with biasing post, and the top of the second mill platform is provided with the second charging of radial direction
By-path, the inside of the second mill platform are provided with the second charging main stem, and the second charging by-path connects the second feed well and the second charging main stem,
First discharge nozzle connects with the second feed well；The output end of biasing post and motor is connected, first in Liang Ge abrasive materials mechanism
Feed well connects with solder flux case, welding powder case respectively；
B, by mixing device batch mixing, start the mill platform of motor driving first and the second mill platform rotates and carries out abrasive material and batch mixing, control
Motor output speeds make it that the first mill platform and the second rotating speed for grinding platform are 100 ~ 150r/min；
C, cryopreservation, the solder(ing) paste mixed is vacuum-packed and preserved in 0 ~ 10 DEG C of environment.
The principle and advantage of this programme be：During practical application, cabinet as main body supporting structure to solder flux case, welding powder case,
The offer supports such as motor, abrasive material mechanism, mixing mechanism, Liang Ge abrasive materials mechanism are respectively used to milling for welding powder and solder flux.First is recessed
Groove and the first mill platform are cooperatively formed and milled, and the first charging by-path on the first annular feed well and the first mill platform coordinates from lateral
Continue to add solder flux or welding powder into the first mill platform, avoid producing interference, the ripple of swirl type with the swing rod on top and biasing post
Projection, which can gradually grind the welding powder at middle part, solder flux etc. laterally under the milling between mill platform and groove, to be sent, and ripple is raised outer
Solder flux after milling, welding powder, solder(ing) paste etc. can be collected by the annular blow tank of side to be easy to discharge.During practical application, lead to
Cross motor driving biasing post to rotate, biasing post, which rotates, makes mill platform rotate in groove, and solder flux, welding powder pass through the first feed well, the
One charging by-path, the first charging main stem enter between the first mill platform and the first groove, by ripple projection to the first mill platform and the
Welding powder, solder flux between one groove are milled, and the welding powder, solder flux after milling are entered by the first blow tank, the first discharge nozzle
In the second feed well on mixing mechanism.Welding powder, solder flux enters the second charging by-path by the second feed well and the second charging is led
Road, entered by the second charging main stem between the second mill platform and the second groove, mixed under the milling of the second mill platform and the second groove
Conjunction is formed uniformly solder(ing) paste.
The advantages of this programme, is：1st, repeatedly milling respectively, then carry out mixing and mill is carried out to welding powder, solder flux, passed through
Gyrate ripple projection is rolled so that solder(ing) paste even particle size, is evenly distributed；2nd, fed using lateral annular,
Carry out continuing charging while the first mill platform, the second mill platform operating is not disturbed, without external opening, ensure solder(ing) paste relative
Processed in the environment of sealing, better quality.
Preferred scheme one, based on scheme a kind of improvement, fix nitrogen pot, nitrogen in the upper end of motor in step A
Two escape pipes are connected on tank, the feed pipe connected with the first feed well is set on cabinet, connected on solder flux case, welding powder case
Discharge nozzle, escape pipe, feed pipe are connected with discharge nozzle by triple valve, air outlet valve is set on escape pipe.It is lazy by setting
Property gas source provide inert gas for abrasive material mechanism, be passed through inert gas from the first feed well and can be milled in solder flux, welding powder
Inert gas shielding is carried out during the entire process of mixing, avoids external environment from impacting the quality of solder flux, welding powder, avoids welding
Agent, welding powder conglomeration of making moist cause particle uneven, while are passed through the remnants that can accumulate to device inside by inert gas
Solder flux, welding powder, solder(ing) paste etc. carry out purging cleaning, avoid accumulating caking influence device operating in device, pass through triple valve energy
The feeding switching of inert gas, solder flux and welding powder is enough controlled, the mobility of welding powder, solder flux can be improved by inert gas, is kept away
Exempt to block.
A kind of improvement of preferred scheme two, preferably one, in step A between the first mill platform and the first groove,
It is tightly connected between second mill platform and the second groove by bearing and sealing ring.So set and cause abrasive material mechanism and mixing mechanism
The environment of closing is internally formed, the influence of external environment is not easily susceptible to and quality is caused to welding powder, solder flux and both mixtures
On harmful effect, while abrasive material mechanism and the behavior in service of mixing mechanism can be improved, reduce the impurity that equipment attrition is brought.
A kind of improvement of preferred scheme three, preferably two, vavuum pump, vavuum pump and cabinet are set in cabinet bottom
Inside connection, by the vacuum in vavuum pump controlling machine box it is -2atm in step B.By vacuum device to cabinet inside
Vacuumize process is carried out, vacuum environment is built in cabinet inside, avoids in solder(ing) paste manufacturing process by the moisture in air, oxygen
The influence of gas etc. and there are quality problems, avoid abrasive material mechanism, mixing mechanism etc. under air ambient be oxidized, corrode produce shadow
Ring the impurity of solder(ing) paste quality.
A kind of improvement of preferred scheme four, preferably three, it is 3atm that the air pressure in escape pipe is controlled in step B.
So enable nitrogen to there is enough air pressure to blow welding powder, solder flux forward when entering the first feed well, can ensure to mill
Cleaning inside material mechanism, mixing mechanism.
A kind of improvement of preferred scheme five, preferably four, the first discharging channel is set in step A it is V-shaped, first
Discharging channel low side is connected with drainage conduit, is provided with settling tank below batch mixing channel mould, drainage conduit connects with settling tank.V-shaped setting
First discharging channel enables the mixed solder(ing) paste extruded from the second blow tank to collect and enter from trend drainage conduit
In settling tank, settling tank, which is used to collect, contains mixed solder(ing) paste so that the inert gas in solder(ing) paste separates with solder(ing) paste.
A kind of improvement of preferred scheme six, preferably five, in the top of settling tank and vacuum device in step A
Between connect exhaust tube, exhaust tube connects with nitrogen pot.So setting can be by settling tank by vavuum pump and exhaust tube
Nitrogen, which detaches, to be recovered in nitrogen pot, recycles nitrogen, higher to resource utilization.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
Below by embodiment, the present invention is further detailed explanation：
Reference in Figure of description includes：Vavuum pump 1, settling tank 2, cabinet 3, second feed by-path 4, the first blow tank
5th, feed pipe 6, bearing 7, triple valve 8, discharge nozzle 9, first grind platform 10, biasing post 11, solder flux case 12, escape pipe 13, motor 14,
Nitrogen pot 15, crank 16, air outlet valve 17, swing rod 18, first feed by-path 19, welding powder case 20, the first feed well 21, abrasive material channel mould
22nd, the second mill platform 23, exhaust tube 24, the second feed well 25, the second blow tank 26, the first discharging channel 27.
A kind of processing technology of tin cream, including solder flux configuration, welding powder configuration, batch mixing step, batch mixing comprise the following steps：
A, mixing device is set up, as shown in figure 1, setting cabinet 3, solder flux case 12, motor 14, weldering are set up in parallel at the top of cabinet 3
Powder case 20, the inside of cabinet 3 set Liang Ge abrasive materials mechanism and a mixing mechanism, abrasive material mechanism to include abrasive material channel mould 22, abrasive groove
The middle part of mould 22 is provided with the first circular groove, and the lower inside wall of abrasive material channel mould 22 is provided with the first feed well 21 of annular, mill
The ripple that the inner side bottom wall of hopper mould 22 is provided with swirl type is raised, and the raised outside of ripple is provided with the first blow tank 5 of annular, the
One blow tank 5 is communicated with the first discharge nozzle 9；The first mill platform 10 of cylinder, the first mill platform 10 are rotatably connected in first groove
Top be provided with biasing post 11, the bottom of the first mill platform 10 is provided with the first charging by-path 19 of radial direction, the lower end of the first mill platform 10
Middle part is provided with the first charging main stem, the first charging connection of by-path 19 first feed well 21 and the first charging main stem, the first mill platform 10
Bottom be meshed with ripple projection；Mixing mechanism includes batch mixing channel mould, and the middle part of batch mixing channel mould is provided with the second circular groove,
Second groove upper inner wall is provided with the second feed well 25 of annular, and the bottom inner portion of batch mixing channel mould is provided with the first of radial direction and gone out
Material road 27, the outside that the ripple that also is provided with swirl type on the inside of batch mixing channel mould on bottom wall is raised, ripple is raised are provided with the second of annular
Blow tank 26, the first discharging channel 27 connect with the second blow tank 26；The second mill platform of cylinder is rotatably connected in second groove
23, the top of the second mill platform 23 also is provided with biasing post 11, and the top of the second mill platform 23 is provided with the second charging by-path 4 of radial direction, the
The inside of two mill platforms 23 is provided with the second charging main stem, the second charging connection of by-path 4 second feed well 25 and the second charging main stem, the
One discharge nozzle 9 connects with the second feed well 25；Biasing post 11 is connected with the output end of motor 14, in Liang Ge abrasive materials mechanism
First feed well 21 connects with solder flux case 12, welding powder case 20 respectively；
B, grind platform 10 and second by mixing device batch mixing, startup motor 14 driving first and grind the rotation of platform 23 progress abrasive material and mix
Material, the output speed of controlled motor 14 cause the rotating speed of the first mill platform 10 and the second mill platform 23 to be 130r/min；
C, cryopreservation, the solder(ing) paste mixed is vacuum-packed and preserved in 0 ~ 10 DEG C of environment.
In the present embodiment, during practical application, nitrogen pot 15 is fixed in the upper end of motor 14 in step A, is connected on nitrogen pot 15
Lead to two escape pipes 13, the feed pipe 6 connected with the first feed well 21 is set on cabinet 3, on solder flux case 12, welding powder case 20
Discharge nozzle 9 is connected, escape pipe 13, feed pipe 6 are connected with discharge nozzle 9 by triple valve 8, air outlet valve is set on escape pipe 13
17.Connect between the first mill groove of platform 10 and first, between the second mill groove of platform 23 and second by bearing 7 and sealing ring sealing
Connect, vavuum pump 1 is set in the bottom of cabinet 3, vavuum pump 1 connects with the inside of cabinet 3.First discharging channel 27 is set it is V-shaped, first
The low side of discharging channel 27 is connected with drainage conduit, is provided with settling tank 2 below batch mixing channel mould, drainage conduit connects with settling tank 2, in settling tank
Exhaust tube 24 is connected between 2 top and vacuum device, exhaust tube 24 connects with nitrogen pot 15.Pass through vavuum pump 1 in step B
Vacuum in controlling machine box 3 is -2atm, and it is 3atm to control the air pressure in escape pipe 13.
Above-described is only embodiments of the invention, and the general knowledge such as known concrete structure and/or characteristic is herein in scheme
Do not describe excessively.It should be pointed out that for those skilled in the art, without departing from the structure of the invention, also
Several modifications and improvements can be made, these should also be considered as protection scope of the present invention, and these are real all without the present invention is influenceed
The effect and practical applicability applied.The scope of protection required by this application should be based on the content of the claims, specification
In the record such as embodiment can be used for the content for explaining claim.
Claims (7)
1. a kind of processing technology of tin cream, including solder flux configuration, welding powder configuration, batch mixing step, it is characterised in that：The batch mixing bag
Include following steps：
A, mixing device is set up, cabinet is set, is set up in parallel solder flux case, motor, welding powder case in enclosure top, cabinet inside is set
Liang Ge abrasive materials mechanism and a mixing mechanism, abrasive material mechanism include abrasive material channel mould, and the middle part of abrasive material channel mould is provided with circular first
Groove, abrasive material channel mould lower inside wall are provided with the first feed well of annular, and bottom wall is provided with swirl type on the inside of abrasive material channel mould
Ripple is raised, and the raised outside of ripple is provided with the first blow tank of annular, and the first blow tank is communicated with the first discharge nozzle；Described
The first mill platform of cylinder is rotatably connected in one groove, the top of the first mill platform is provided with biasing post, and the bottom of the first mill platform is set
There is the first charging by-path of radial direction, the first charging main stem, the first charging by-path connection first are provided with the middle part of the lower end of the first mill platform
Feed well and the first charging main stem, the bottom of the first mill platform are meshed with ripple projection；The mixing mechanism includes batch mixing channel mould,
The middle part of batch mixing channel mould is provided with the second circular groove, and the second groove upper inner wall is provided with the second feed well of annular, mixes
The bottom inner portion of hopper mould is provided with the first discharging channel of radial direction, and the ripple that swirl type also is provided with the bottom wall of batch mixing channel mould inner side is convex
Rise, second blow tank of the outside provided with annular that ripple is raised, the first discharging channel connects with the second blow tank；Turn in second groove
Dynamic the second mill platform for being connected with cylinder, the top of the second mill platform also are provided with biasing post, and the top of the second mill platform is provided with radial direction
Second charging by-path, the inside of the second mill platform are provided with the second charging main stem, second charging by-path connection the second feed well and second
Main stem is fed, first discharge nozzle connects with the second feed well；The output end of biasing post and motor is connected, two abrasive materials
The first feed well in mechanism connects with solder flux case, welding powder case respectively；
B, by mixing device batch mixing, start the mill platform of motor driving first and the second mill platform rotates and carries out abrasive material and batch mixing, control
Motor output speeds make it that the first mill platform and the second rotating speed for grinding platform are 130r/min；
C, cryopreservation, the solder(ing) paste mixed is vacuum-packed and preserved in 0 ~ 10 DEG C of environment.
2. the processing technology of tin cream according to claim 1, it is characterised in that：Consolidate in the step A in the upper end of motor
Determine nitrogen pot, two escape pipes are connected on nitrogen pot, the feed pipe connected with the first feed well is set on cabinet, in solder flux
Discharge nozzle is connected on case, welding powder case, escape pipe, feed pipe are connected with discharge nozzle by triple valve, set out on escape pipe
Air valve.
3. the processing technology of tin cream according to claim 2, it is characterised in that：In the first mill platform and the in the step A
It is tightly connected between one groove, between the second mill platform and the second groove by bearing and sealing ring.
4. the processing technology of tin cream according to claim 3, it is characterised in that：In cabinet bottom, vavuum pump, vacuum are set
Pump connects with cabinet inside, by the vacuum in vavuum pump controlling machine box is -2atm in step B.
5. the processing technology of tin cream according to claim 4, it is characterised in that：Controlled in the step B in escape pipe
Air pressure is 3atm.
6. the processing technology of tin cream according to claim 5, it is characterised in that：The first discharging channel is set in the step A
Put V-shaped, the first discharging channel low side is connected with drainage conduit, is provided with settling tank below batch mixing channel mould, drainage conduit connects with settling tank.
7. the processing technology of tin cream according to claim 5, it is characterised in that：On the top of settling tank in the step A
Exhaust tube is connected between vacuum device, exhaust tube connects with nitrogen pot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710918969.0A CN107570913B (en) | 2017-09-30 | 2017-09-30 | A kind of processing technology of tin cream |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710918969.0A CN107570913B (en) | 2017-09-30 | 2017-09-30 | A kind of processing technology of tin cream |
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| CN107570913A true CN107570913A (en) | 2018-01-12 |
| CN107570913B CN107570913B (en) | 2019-11-12 |
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| CN201710918969.0A Active CN107570913B (en) | 2017-09-30 | 2017-09-30 | A kind of processing technology of tin cream |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110355498A (en) * | 2019-07-22 | 2019-10-22 | 义乌月落自动化设备有限公司 | A kind of laser solder(ing) paste and its manufacturing method and operating process |
| CN114669914A (en) * | 2022-05-07 | 2022-06-28 | 深圳市同方电子新材料有限公司 | Energy-saving low-temperature lead-free soldering paste preparation method and equipment |
| CN114799392A (en) * | 2022-06-13 | 2022-07-29 | 重庆科技学院 | Secondary processing method and device of tin column for electronic packaging based on electromagnetic pulse heating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110355498A (en) * | 2019-07-22 | 2019-10-22 | 义乌月落自动化设备有限公司 | A kind of laser solder(ing) paste and its manufacturing method and operating process |
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| CN114799392A (en) * | 2022-06-13 | 2022-07-29 | 重庆科技学院 | Secondary processing method and device of tin column for electronic packaging based on electromagnetic pulse heating |
| CN114799392B (en) * | 2022-06-13 | 2023-06-02 | 重庆科技学院 | Electromagnetic pulse heating-based secondary processing method and device for tin column for electronic packaging |
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|---|---|
| CN107570913B (en) | 2019-11-12 |
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