CN108856702A - Acolite spheroidizing of powder and microcrystal nanometer technology law - Google Patents
Acolite spheroidizing of powder and microcrystal nanometer technology law Download PDFInfo
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- CN108856702A CN108856702A CN201710329042.3A CN201710329042A CN108856702A CN 108856702 A CN108856702 A CN 108856702A CN 201710329042 A CN201710329042 A CN 201710329042A CN 108856702 A CN108856702 A CN 108856702A
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- powder
- organic solvent
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- spheroidizing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The present invention relates to a kind of low melting point lead-free solder alloy spheroidizing of powder and microcrystal nanometer chemical industry process, belong to technical field of processing metallic materials.The method of the present invention will be atomized the low-melting alloy powder of irregular shape obtained by high pressure gas, the organic solvent mixed liquor being formulated by using organic two butyric acid dibutyl ester of nodulizer certain herbaceous plants with big flowers and organic dispersing agent Triton X-100 by 1: 1 weight ratio, alloy powder is uniformly mixed into dispersion with organic solvent, and heating melting, then rapid liquid quenching but, finally obtains the alloy particle of nodularization powder and micro nanosizing.The present invention uses nontoxic, colourless, tasteless organic solvent as nodulizer and dispersing agent, harmless.Its material property and surface quality can be improved in lead-free solder alloy powder after nodularization, and can make the micro brilliant nanosizing of its solidified structure.
Description
Technical field
The present invention relates to a kind of low melting point lead-free solder alloy spheroidizing of powder microcrystal nanometer chemical industry process, belong to metal material
Working process technical field.
Background technique
Lead-free solder low melting point alloy generallys use atomization method as a kind of environment-friendly electronic material and is prepared.By
It is higher in the quality requirement of electronic product, thus the sphericity to lead-free solder, granularity and its distribution and solidified structure have compared with
High requirement.Lead-free solder is the inexorable trend of 21 century mankind's environment-friendly electronic material production technology development, as electronic product
Lead-free solder its sphericity it is higher, granularity is more uniform, solidified structure more refines, then its performance is better.Its particle size range simultaneously
Usually to control between 5~74 μm.
Summary of the invention
The object of the present invention is to provide a kind of lead-free solder low-melting alloy spheroidizing of powder and the technique sides of microcrystal nanometer
Method.A further object of the present invention is to reach nodularization and crystallite using compounded organic solvent package alloy powder, remelting micro mist
Change.
A kind of acolite spheroidizing of powder of the present invention and microcrystal nanometer technology law, it is characterised in that it is with work below
Skill process and step：
A. the low-melting alloy powder for being atomized irregular shape obtained by high pressure gas organic solvent is placed in mix
In liquid, which is by two butyric acid dibutyl ester of nodulizer certain herbaceous plants with big flowers and dispersing agent Triton X-100 by 1: 1
Weight ratio is formulated, then because ultrasonic oscillator is uniformly dispersed；
B. then the solution mixture for being placed with alloy powder is put in resistance furnace and is heated, make the temperature of solution mixture
Reach within the scope of 260 DEG C~350 DEG C；
C. above-mentioned solution is kept into heated at constant temperature 3 minutes at the temperature disclosed above, it is ensured that powder is completely melt；Then make it certainly
Dynamic to be cooled to 150 DEG C, then liquid is quenched in the aqueous solution of room temperature rapidly, stays a minute, can obtain after being filtered, washed, being dried
Obtain the alloy particle of nodularization and microcrystal nanometer.
The mechanism of action of the method for the present invention is：Alloy powder under compounded organic solvent package, after heated melting, benefit
With the collective effect of melting micro mist surface tension and hydrostatic pressure, promote melted powder to the smallest sphere conversion of volume, simultaneously
Realize the nanosizing of powder crystallite.Two butyric acid dibutyl ester of nodulizer certain herbaceous plants with big flowers and dispersing agent polyethylene glycol octyl benzene are used in the present invention
Base ether mixed organic solvents also play certain effect.
It is the method for the present invention simple process, low in cost, be have better effects spheroidizing of powder and microcrystal nanometer plus
Work processing technique.
Detailed description of the invention
Fig. 1 is the original atomized powder of experiment gained, the figure compared with the pattern of nodularization powder after processing in the present invention.Wherein,
It (a) is the pattern of the original atomized powder of Sn-57%Bi alloy；It (b) is the pattern through the method for the present invention treated nodularization powder.
Fig. 2 is the original atomized powder of experiment gained figure compared with the solidified structure of nodularization powder after processing in the present invention.Its
In, (a) is the solidified structure of the original atomized powder of Sn-57%Bi alloy；(b) for through the method for the present invention treated nodularization powder
Solidified structure.
Specific embodiment
(1) first by 2g ingredient be a kind of leadless welding alloy of Sn-57wt%Bi as made from high pressure gas Alevaire not
The low-melting alloy powder of regular shape is placed in the organic solvent mixed liquor of 20ml；The organic solvent mixed liquor is by nodularization
Two butyric acid dibutyl ester of agent certain herbaceous plants with big flowers and dispersing agent Triton X-100 are formulated by 1: 1 weight ratio, are then shaken with ultrasonic wave
Device is swung to be uniformly dispersed；
(2) then the organic solution mixture for being placed with Sn-57wt%Bi alloy powder is placed in resistance furnace and is heated,
The temperature of solution mixture is set to reach 260 DEG C；
(3) above-mentioned solution is kept into heated at constant temperature 3 minutes at the temperature disclosed above, it is ensured that powder is completely melt, then makes it
Automatically 150 DEG C are cooled to, then liquid is quenched in the aqueous solution of room temperature rapidly, stays a minute, after being filtered, washed, being dried
Obtain the alloy particle of nodularization and microcrystal nanometer.
Resulting alloy powder will be tested in embodiment, the photo observed and taken the photograph by scanning electron microscope (SEM)
As shown in Fig. 1 and Fig. 2 in attached drawing.
Fig. 1 is the original atomized powder sheet of experiment gained figure compared with the pattern of nodularization powder after processing.Wherein, (a) is Sn-
The pattern of the original atomized powder of 57%Bi alloy；It (b) is the pattern through the method for the present invention treated nodularization powder.
It can be seen from figure 1 that through the method for the present invention treated nodularization powder, sphericity, roundness and its surface cleaning
Degree greatly improves, and whole dose of pattern is uniformly.
Fig. 2 is the original atomized powder of experiment gained figure compared with the solidified structure of nodularization powder after processing.Wherein, (a) is
The solidified structure of the original atomized powder of Sn-57%Bi alloy；It (b) is the solidification group through the method for the present invention treated nodularization powder
It knits.
It can be seen in fig. 2 that original atomized powder is hardly formed nanocrystal, and can be formed in nodularization powder after processing
Biggish nanocrystal.
Claims (1)
1. a kind of acolite spheroidizing of powder and microcrystal nanometer technology law, it is characterised in that its with technical process below and
Step：
A. the low-melting alloy powder for being atomized irregular shape obtained by high pressure gas is placed in organic solvent mixed liquor,
The organic solvent mixed liquor is by two butyric acid dibutyl ester of nodulizer certain herbaceous plants with big flowers and dispersing agent Triton X-100 by 1: 1 weight ratio
It is formulated, then because ultrasonic oscillator is uniformly dispersed；
B. then the solution mixture for being placed with alloy powder is put in resistance furnace and is heated, reach the temperature of solution mixture
Within the scope of 260 DEG C~350 DEG C；
C. above-mentioned solution is kept into heated at constant temperature 3 minutes at the temperature disclosed above, it is ensured that powder is completely melt；Then drop it automatically
Temperature to 150 DEG C, then rapidly liquid quench in the aqueous solution of room temperature, stay a minute, be filtered, washed, dry after can be obtained ball
The alloy particle of change and microcrystal nanometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329042.3A CN108856702A (en) | 2017-05-11 | 2017-05-11 | Acolite spheroidizing of powder and microcrystal nanometer technology law |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329042.3A CN108856702A (en) | 2017-05-11 | 2017-05-11 | Acolite spheroidizing of powder and microcrystal nanometer technology law |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108856702A true CN108856702A (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710329042.3A Withdrawn CN108856702A (en) | 2017-05-11 | 2017-05-11 | Acolite spheroidizing of powder and microcrystal nanometer technology law |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114496342A (en) * | 2020-11-11 | 2022-05-13 | 北京梦之墨科技有限公司 | Preparation method of low-melting-point metal particles, conductive paste and preparation method thereof |
-
2017
- 2017-05-11 CN CN201710329042.3A patent/CN108856702A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114496342A (en) * | 2020-11-11 | 2022-05-13 | 北京梦之墨科技有限公司 | Preparation method of low-melting-point metal particles, conductive paste and preparation method thereof |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181123 |