CN208945156U - A kind of kamash alloy spherical shape welding powder rapidly and efficiently returning charge processing equipment - Google Patents
A kind of kamash alloy spherical shape welding powder rapidly and efficiently returning charge processing equipment Download PDFInfo
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- CN208945156U CN208945156U CN201821728529.5U CN201821728529U CN208945156U CN 208945156 U CN208945156 U CN 208945156U CN 201821728529 U CN201821728529 U CN 201821728529U CN 208945156 U CN208945156 U CN 208945156U
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Abstract
A kind of kamash alloy spherical shape welding powder rapidly and efficiently returning charge processing equipment, star-shaped feeding machine (3), the lifting spiral batcher (4) for being installed on star-shaped feeding machine discharge port, the returning charge cover (6) being mounted in returning charge furnace (5) being set to below screw(-type) feeder top discharge mouth including being installed on ultrasonic double-deck screening machine (1) returning charge discharge port lower end；Level switch (2) are installed in the feeding inlet of star-shaped feeding machine, the nitrogen charging mouth (9) with nitrogen charging solenoid valve (10), pressure sensor (8), the exhaust outlet (11) with exhaust solenoid valve (13) are provided at the top of returning charge cover；Bottom is provided with agitator arm (14) in returning charge furnace.The utility model can be directly connected to the double-deck screening machine of end ultrasound of production kamash alloy spherical shape welding powder, realize returning charge powder processing rapidly and efficiently, easy to operate, returning charge processing speed matches linkage with screening machine returning charge discharging speed, efficient melting returning charge powder in time, and without dust emission.
Description
Technical field
The utility model relates to kamash alloy spherical shape welding powder production equipment and process technical fields
Background technique
Kamash alloy spherical shape welding powder material is the indispensable connecting material of electronics industry.It is main connection material with solder(ing) paste
The application of the surface installation technique (STM) of material, such that circuit assembly process is efficient, micromation, and SMT technology has become
The mainstream of electronics assembly technology.Solder(ing) paste is mainly made of solder powder and weld-aiding cream, and wherein solder powder weight ratio accounts for 88-90%
Left and right, solder powder is to prepare one of main material of solder(ing) paste, and a most important index of quality of welding powder is the grain of powder
Diameter distribution, i.e., the particle diameter distribution specification of its product, particle diameter distribution can only in a certain range, and the powder more than particle size range is
Returning charge powder (specification outer powder), its particle size range specification is 20um~38um by taking Type4 model welding powder product as an example, in production process
<20um and>38um is returning charge powder, and the general production technology of kamash alloy spherical shape welding powder is powder by atomization-screening sorting, ultrasound
Bilayer screening is universal screening sorting process, the double-deck ultrasonic sieve of screening machine installation, and what first layer sub-elected is coarse powder, the
Two layers sub-elect fine powder, and centre is product, common operating procedure be by coarse powder, fines collection in tank, be then transported to
General furnace directly heats melting, had aoxidized since the surface area of powder is larger, and had had already in process of production among heap powder-deposit
Gap causes to conduct heat slowly, and general furnace heating is all to pass through furnace body to conduct heat and open wide the protection of melting inert free gas, melting
The oxidizing slag generated in journey is larger, and metal loss is serious, while returning charge powder is dosed to from the ultrasonic double-deck screening machine collecting tank transhipment
Dust loss and cumbersome is also resulted in during smelting furnace, furthermore fusion process generallys use addition to control slag rate
Reducing agent and generate a large amount of flue dust cause environmental protection pressure and pollution alloy molten solution.
Summary of the invention
The purpose of this utility model is to solve in kamash alloy spherical shape welding powder production process the returning charge powder that generates (outside specification
Powder) it is cumbersome, slag rate is high, metal loss is big, environmental protection pressure is big in fusion process the problems such as, provide a kind of double with ultrasound
Layer screening be directly connected to, melting under nitrogen protection, the equipment to reach automatic rapidly and efficiently clean returning charge powder processing.
The purpose of this utility model is achieved through the following technical solutions:
A kind of kamash alloy spherical shape welding powder rapidly and efficiently returning charge processing equipment, including it is installed on production kamash alloy spherical shape weldering
The star-shaped feeding machine of the end ultrasound double-deck screening machine returning charge discharge port lower end of powder, the promotion for being installed on star-shaped feeding machine discharge port
Formula screw(-type) feeder, the returning charge cover being mounted in returning charge furnace being set to below screw(-type) feeder top discharge mouth；It is given star-like
The feeding inlet of material machine installs level switch, for detecting returning charge powder heap accumulated amount and start-up and shut-down control star-shaped feeding machine and screw feeder
Machine；The nitrogen charging mouth with nitrogen charging solenoid valve, pressure sensor are provided at the top of returning charge cover, with the exhaust outlet of exhaust solenoid valve；?
Bottom is provided with the agitator arm driven by stirring motor outside furnace in returning charge furnace.
The utility model device is provided with filter in exhaust outlet.
The utility model device uses directly connect star-shaped feeding machine with the ultrasonic double-deck screening machine return port, star-like feed
The discharge port of machine is connect with the feeding inlet of returning charge cover, by be mounted on star-shaped feeding machine feeding inlet level switch control it is star-like to
The returning charge cover being delivered in returning charge furnace of the returning charge that material machine and screw(-type) feeder automatically produce the ultrasonic double-deck screening machine at the uniform velocity
Interior, the alloy of the identical chemical component of elder generation's melting, aluminium alloy are higher than returning charge cover bottom margin in returning charge furnace, by control returning charge cover
Nitrogen pressure, realize the melting under nitrogen protection atmosphere of returning charge powder, design has agitator arm in returning charge furnace, stirs alloy molten solution
Accelerate the melting of returning charge powder and ensure that the ingredient of aluminium alloy is uniform, in fusion process rapidly and efficiently and smoke dust, slag rate are lower.
Returning charge discharge port using the double-deck screening machine of end process ultrasound with production kamash alloy spherical shape welding powder is direct-connected, realizes quickly high
The returning charge powder of effect is handled, easy to operate.Returning charge processing speed matches linkage with screening machine returning charge discharging speed, can be by returning charge powder
Efficient melting in time, which handles while reducing returning charge powder, is collecting bigger metal loss caused by the secondary oxidation in transport process,
There is nitrogen protection in fusion process, oxidizing slag is lower and without dust emission.The utility model device and method reduce conventional return
Collection, shipment of feed powder etc. operate and solve metal loss and environmental issue caused by opening wide normal oxygen melting.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model；
Fig. 2 is the schematic diagram of returning charge cover.
Specific embodiment
Kamash alloy spherical shape welding powder as shown in Figure 1 rapidly and efficiently returning charge processing equipment is included in production kamash alloy ball
Returning charge discharge port (coarse powder and fine powder outlet) lower end of the double-deck screening machine 1 of end process ultrasound of shape welding powder is installed by star-shaped feeding machine
3 for being isolated the atmosphere of batcher and screening machine, it is ensured that the screening atmosphere of hypoxemia in screening machine, the feeding inlet peace of star-shaped feeding machine
Charge bit switch 2, and for detecting returning charge powder heap accumulated amount and start-up and shut-down control star-shaped feeding machine and screw(-type) feeder, star-shaped feeding machine goes out
Material mouth installation screw(-type) feeder 4 is used to be promoted returning charge powder and the quantitative feeding inlet 7 for being at the uniform velocity supplied into returning charge cover 6.Such as Fig. 2 institute
Show, returning charge cover top design has nitrogen charging mouth 9, and nitrogen is filled with returning charge cover to ensure the nitrogen protection control in fusion process of returning charge powder
Oxygenerating slag, the design of nitrogen charging mouth are equipped with nitrogen charging solenoid valve 10, while in order to control the nitrogen pressure in returning charge cover, returning charge cover top
Portion's design is equipped with pressure sensor 8, and returning charge cover top design has exhaust outlet 11, when nitrogen pressure is more than setting value in returning charge cover
When, it is discharged by exhaust outlet, exhaust ports design connects filter 12 to ensure no dust emission, and the design of exhaust outlet rear end has exhaust electricity
For controlling exhaust, returning charge cover is mounted in returning charge furnace 5 magnet valve 13, and bottom, which also design, in returning charge furnace is equipped with agitator arm 14 and leads to
Cross the fusing that the driving of stirring motor 15 being arranged in outside returning charge furnace accelerates returning charge cover internal return powder for stirring kamash alloy melt
And ensure that ingredient is uniform.
The method that kamash alloy spherical shape welding powder returning charge is rapidly and efficiently handled using the utility model device is as follows:
A. chemistry identical as the kamash alloy spherical shape welding powder product that the ultrasonic double-deck screening machine 1 produces first is put into returning charge furnace
The alloy of ingredient is opened returning charge furnace 5 and is heated, and ensures that liquid level is higher than 6 bottom of returning charge cover after the alloy material fusing of investment, to returning charge
Opening stirring motor 15 when kamash alloy melt reaches setting value in furnace drives agitator arm 14 to rotate, while opening ultrasonic bilayer
Screening machine carries out welding powder production, as the process returning charge (coarse powder and fine powder) of screening constantly enters the feeding inlet of star-shaped feeding machine 3
It is accumulated to certain altitude triggering level switch 2 and starts star-shaped feeding machine 3 and screw(-type) feeder 4 for the conveying of returning charge powder continuously and smoothly
Feeding inlet 7 to the top of returning charge cover 6 enters returning charge cover, opens the nitrogen charging solenoid valve 10 installed at the top of returning charge cover, and nitrogen is from nitrogen charging
Mouth 9 enters returning charge cover and carries out oxygen barrier nitrogen protection to the glass putty in returning charge cover, by setting the pressure being mounted at the top of returning charge cover
The pressure value control nitrogen charging solenoid valve of sensor 8 and 13 start and stop of exhaust solenoid valve that are mounted at the top of returning charge cover, nitrogen in returning charge cover
Atmospheric pressure opens nitrogen charging solenoid valve when being lower than setting value and closes exhaust solenoid valve, and vice versa, ensures to return by setup pressure value
Material covers the nitrogen protection atmosphere of interior positive pressure；
B. the temperature of returning charge furnace alloy molten solution is controlled 80 DEG C~100 DEG C more than aluminium alloy phase line or eutectic temperature, example
Such as, when handling Sn63Pb37 alloy returning charge powder, returning charge furnace temperature controls 250 DEG C~270 DEG C, handles Sn42Bi58 alloy returning charge powder
When, returning charge furnace temperature controls 220 DEG C~240 DEG C, when handling Sn96.5Ag3.0Cu0.5 alloy returning charge powder, the control of returning charge furnace temperature
300 DEG C~320 DEG C, returning charge powder enters returning charge cover, and since its density is lower than kamash alloy melt, returning charge powder floats and molten surface,
The bottom margin of returning charge cover is lower than melt, and returning charge powder is then in nitrogen atmosphere in returning charge cover.Agitator arm stirring in returning charge furnace
Melt is driven to rotate to form a certain number of whirlpools cover internal return powder is fused in melt, returning charge powder is fused into alloy molten solution, with
Returning charge powder constantly enter fusing in returning charge cover, the alloy molten solution liquid level in furnace increases, and starting casting when liquid level is close to boiler face needs
The alloy profile wanted, the alloy amount of casting is until level control is more than returning charge cover bottom margin；
C. returning charge powder can be generated fraction of due to its its surface partial oxidation in process of production in fusion process
Oxidizing slag, because the density ratio alloy molten solution of slag is low, slag can float on aluminium alloy surface in returning charge cover and mix with returning charge powder, cause
Heat transfer rate reduces returning charge powder burn-off rate and also lowers, and according to the amount of returning charge powder melt processed, need to regularly open returning charge cover will
Slag in cover is pulled out.
Claims (2)
1. a kind of kamash alloy spherical shape welding powder rapidly and efficiently returning charge processing equipment, which is characterized in that including being installed on production tinbase
The star-shaped feeding machine (3) of end double-deck screening machine (1) returning charge discharge port lower end of ultrasound of alloy spherical welding powder, be installed on it is star-like to
The lifting spiral batcher (4) of material machine discharge port is set to below screw(-type) feeder top discharge mouth and is mounted on returning charge furnace
(5) the returning charge cover (6) in；Level switch (2) are installed in the feeding inlet of star-shaped feeding machine, for detecting returning charge powder heap accumulated amount and opening
Stop controlling star-shaped feeding machine and screw(-type) feeder；The nitrogen charging mouth (9) with nitrogen charging solenoid valve (10), pressure are provided at the top of returning charge cover
Force snesor (8), the exhaust outlet (11) with exhaust solenoid valve (13)；Bottom is provided with by stirring motor outside furnace in returning charge furnace
(15) agitator arm (14) driven.
2. a kind of kamash alloy spherical shape welding powder according to claim 1 rapidly and efficiently returning charge processing equipment, which is characterized in that
Exhaust outlet is provided with filter (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821728529.5U CN208945156U (en) | 2018-10-24 | 2018-10-24 | A kind of kamash alloy spherical shape welding powder rapidly and efficiently returning charge processing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821728529.5U CN208945156U (en) | 2018-10-24 | 2018-10-24 | A kind of kamash alloy spherical shape welding powder rapidly and efficiently returning charge processing equipment |
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| CN208945156U true CN208945156U (en) | 2019-06-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108274A (en) * | 2018-10-24 | 2019-01-01 | 云南锡业锡材有限公司 | A kind of kamash alloy spherical shape welding powder rapidly and efficiently returning charge processing equipment and processing method |
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2018
- 2018-10-24 CN CN201821728529.5U patent/CN208945156U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108274A (en) * | 2018-10-24 | 2019-01-01 | 云南锡业锡材有限公司 | A kind of kamash alloy spherical shape welding powder rapidly and efficiently returning charge processing equipment and processing method |
| CN109108274B (en) * | 2018-10-24 | 2024-02-20 | 云南锡业新材料有限公司 | Method for rapidly and efficiently treating tin-base alloy spherical welding powder return material |
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Address after: 650501 No.2, Yunjing Road, information industry base, Kunming Economic and Technological Development Zone, Yunnan Province Patentee after: YUNNAN TIN NEW MATERIAL Co.,Ltd. Address before: 650501 No.2, Yunjing Road, information industry base, Kunming Economic and Technological Development Zone, Yunnan Province Patentee before: YUNNAN TIN MATERIAL Co.,Ltd. |