CN104400260B - The manufacture craft of extrusion ingot containing copper-phosphorus brazing alloy - Google Patents
The manufacture craft of extrusion ingot containing copper-phosphorus brazing alloy Download PDFInfo
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- CN104400260B CN104400260B CN201410501534.2A CN201410501534A CN104400260B CN 104400260 B CN104400260 B CN 104400260B CN 201410501534 A CN201410501534 A CN 201410501534A CN 104400260 B CN104400260 B CN 104400260B
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- phosphorus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
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Abstract
The invention discloses a kind of processing method of the stable copper-phosphorus brazing alloy extrusion ingot of phosphorus content, comprise the following steps：Cathode copper, red phosphorus are weighed in proportion, are positioned over the crucible with pot cover；Drain air and sealed crucible in crucible；Heating crucible, makes the red phosphorus in crucible gradually roast chemical conversion liquid with cathode copper；The filling with inert gas in heating, makes the red phosphorus after gasification be absorbed by solution, obtains copper phosphorus liquid；Uniform stirring copper phosphorus liquid, removes liquid level scum silica frost；Copper phosphorus liquid is poured into holding furnace, direct casting obtains continuous casting ingot；By continuous casting ingot surface treated, short ingot is cut into, extruding, wire drawing obtain finished product.Phosphor-copper mixture, without using copper phosphorus intermediate alloy, but is directly added after graphite crucible and heated when producing extrusion ingot by the present invention, and solder phosphorus content that output comes out is stable, while with short production cycle.
Description
Technical field
The present invention relates to a kind of manufacture craft of extrusion ingot, more specifically, it relates to a kind of squeezing containing copper-phosphorus brazing alloy
The manufacture craft of briquetting.
Background technology
People manufacture different types of solder product usually using the extrusion ingot of solder.The extrusion ingot of existing copper-phosphorus brazing alloy
Processing technology, its step and Application No. 200410044078.X patent of invention are (entitled《A kind of high-ductility copper phosphorus
The patent of solder and preparation method thereof》) disclosed in method it is close, i.e., first by cathode copper and account for the copper-phosphorus alloy of total amount 1/3 and first erect
It is placed in stove, is warming up to 600 1 800 DEG C, further accelerates heating, plus coverture, after cathode copper and copper-phosphorus alloy are completely melt, stir
Mix, add remaining 2/3 next copper-phosphorus alloy, be stirred for after fusing.The technical scheme is disadvantageous in that：The technique is made
Extrusion ingot in phosphorus content determination, be to be realized by controlling the component ratio of Copper phosphorus alloys processed, so " copper smelting phosphorus can be increased
This prior step of alloy ", virtually improves manufacturing cost.
With the development of technology, some companies attempt directly to smelt copper and phosphorus Hybrid Heating when producing solder, to replace
For " smelting copper-phosphorus alloy " step in existing process, but such technology is attempted not attain the results expected, and traces it to its cause and is：
But such manufacture craft is there is also defect, because the fusing point of copper is 1083 DEG C, the fusing point of phosphorus is 44 DEG C, boiling point at 280 DEG C,
Therefore constantly heated up in smelting process, when temperature is more than 280 DEG C, phosphorus can gasify, volatilize, and dissipate in air；And now
Cathode copper does not melt also, causes phosphorus content in final extrusion ingot finished product to be less than theoretical value, and the product customization for not meeting client will
Ask.
In summary, how to provide a kind of with the increase of temperature, solder also has the processing technology of stable phosphorus content,
It is the technical barrier that those skilled in the art are badly in need of solving.
The content of the invention
It is an object of the invention to provide a kind of manufacture craft of the extrusion ingot containing copper-phosphorus brazing alloy, the technique makes phosphorus and contained
Amount is stable, with short production cycle, solves the defect that above-mentioned prior art is present.
To achieve the above object, the invention provides following technical scheme：A kind of stable copper-phosphorus brazing alloy extruding of phosphorus content
The processing method of ingot, comprises the following steps：
1. cathode copper, red phosphorus are weighed in proportion, are positioned over the crucible with pot cover；Drain air and sealed crucible in crucible；
2. heating crucible, makes the red phosphorus in crucible gradually roast chemical conversion liquid with cathode copper；The filling with inert gas in heating, makes
Red phosphorus after gasification is absorbed by solution, obtains copper phosphorus liquid；
3. uniform stirring step 2. gained copper phosphorus liquid, remove liquid level scum silica frost；Copper phosphorus liquid is poured into holding furnace, continuously poured
Casting, obtains continuous casting ingot；
4. by the continuous casting ingot surface treated of step 3. gained, it is cut into short ingot, extruding, wire drawing obtain finished product.
By using above-mentioned technical proposal, cost is reduced in order to save the energy, can be by raw material（Including copper and phosphorus）Directly
Connect and be mixed together heating, can be exhausted and seal in the crucible that storage has copper and phosphorus before heating, then be passed through indifferent gas
Body, is to prevent phosphorus from being escaped out after gasifying at high temperature out of crucible, it is ensured that copper, which can absorb, does the phosphorus configured in solder
In phosphorus content it is consistent, the semi-finished product after the completion of smelting are finally subjected to post processing processing, by processing finished product formation copper
Phosphorus brazing alloy.
The present invention is further arranged to：Described step 1. in, pot cover is hinged with crucible, pot cover be provided with perforate；Institute
In stating step 1., cover after crucible, with the place that covers of dirt seal crucible and pot cover, and by the perforate on pot cover and vacuum pump line
Road is connected, and vacuumizes.
By using above-mentioned technical proposal, by vavuum pump by the evacuating air in crucible, when can prevent heating, phosphorus hair
React generation phosphorus pentoxide when angerization or liquefaction with the oxygen in air, causes the drop of the phosphorus content in solder
It is low；Simultaneously after air is exhausted, the junction between pot cover and crucible is sealed with soil, effectively completely cut off crucible and
The circulation of outside air.
The present invention is further arranged to：The step 1. in, when covering crucible, by the perforate on pot cover and aeration equipment pipe
Road is connected, toward crucible in filling with inert gas until spilling, and cover place with dirt seal crucible and pot cover.
By using above-mentioned technical proposal, when covering crucible with pot cover, by aeration equipment toward filling inertia in crucible
Gas, air is diluted, gap outflow of the air between pot cover and crucible, when persistently toward after inflation in crucible, inert gas
Overflow, then cover pot cover, be sealed against with soil, this scheme effectively can also be isolated crucible with outside air.
The present invention is preferably：Described step 1. in, the material of crucible and pot cover is graphite.Crucible is the weight of smelting furnace
Part is wanted, crucible is preferably graphite crucible, and graphite crucible has good thermal conductance and heat-resisting quantity, in applied at elevated temperature mistake
Cheng Zhong, thermal coefficient of expansion is small, has certain stain resistance energy to anxious heat, chilling, to acid, the corrosion resistance of alkaline solution is stronger,
With excellent chemical stability, copper phosphate mixture can be made to occur more preferable reaction.Pot cover is made of same material, reduces pot
Cover the deformation quantity occurred in heating.
The present invention is preferably：The step 3. in, a diameter of 40mm of continuous casting ingot；The step 4. in, the table of continuous casting ingot
Face processing mode is pickling or polishing.Obtained continuous casting ingot can be processed into different types of solder product.
The present invention is preferably：The step 1. in, phosphorus content in copper-phosphorus brazing alloy is 7.0wt%.
By being detected to the product obtained by production, the phosphorus content in copper-phosphorus brazing alloy is 6.989wt%.
The present invention is preferably：The step 1. in, phosphorus content in copper-phosphorus brazing alloy is 7.1wt%.
By being detected to the product obtained by production, the phosphorus content in copper-phosphorus brazing alloy is 7.099wt%.
The present invention is preferably：The step 1. in, phosphorus content in copper-phosphorus brazing alloy is 7.2wt%.
By being detected to the product obtained by production, the phosphorus content in copper-phosphorus brazing alloy is 7.199wt%.
In the present invention, operation principle is：Because the fusing point of copper is 1083 degree, the boiling point of phosphorus is 280 degree, when temperature reaches
At 280 degree, phosphorus evaporates into gas, when temperature constantly rises, the thawing that copper can be slowly, by the sealing of pot cover and crucible, will
While crucible is isolated from the outside, the phosphorus produced by gasification will not also be gone out in loss out of crucible so that phosphorus content will not be reduced,
Again by aeration equipment toward the pressure filled in crucible in inert gas, increase crucible, finally when heating-up temperature reaches 1083 degree
When, copper is fused into copper liquid, can fully absorb the phosphorus of equivalent after the liquefaction of copper liquid, required copper-phosphorus brazing alloy liquid is finally made, open
The copper-phosphorus brazing alloy of liquid is sufficiently stirred after pot cover, makes the more uniform of both mixing, is stirred uniform mixing
Afterwards, the scum silica frost in liquid copper-phosphorus brazing alloy is purged, finally by obtained copper-phosphorus brazing alloy liquid chain pearl into continuous casting ingot.
Compared with prior art, novelty is the present invention：
1st, because crucible is not filled up by raw material, air can be there is, phosphorus can be sent out in heating with the oxygen in air
Raw reaction, can reduce content of the phosphorus in solder, it is therefore necessary to formerly drain air, then be sealed, with prior art
In directly copper phosphorus is heated, then pouring inert gas has difference substantially；
2nd, inert gas has two effects in the present invention, and one is that the oxygen in air is diluted or even drained, and is played
Drain the effect of air；Two be the full more inert gas of filling in crucible, increases pressure, promotes the absorption of copper liquid；
3rd, by being directly directly prepared into solder toward addition phosphorus in crucible and copper, the step that phosphorus is processed into copper-phosphorus alloy is reduced
Suddenly, the production cycle is reduced.
The present invention compared with the existing technology, has the advantages that：By the way that crucible to be carried out to good seal approach,
Allow to directly be directly prepared into solder toward addition phosphorus in crucible and copper, reduce the step of phosphorus is processed into copper-phosphorus alloy, letter
Change processing technology, while reducing processing cost, reduced the production cycle, substantially increase the interests of enterprise.
Embodiment
Manufacture craft by the following examples to the copper-phosphorus brazing alloy extrusion ingot of the present invention is described in further detail.
The specific steps of the present invention can be divided into：
（1）Cathode copper, red phosphorus are weighed in proportion, are positioned over the crucible with pot cover；
（2）When covering crucible, the perforate on pot cover is connected with aeration equipment pipeline, toward crucible in filling with inert gas until
Overflow；
（3）Place is covered by dirt seal crucible and pot cover；
（4）Crucible is put into intermediate frequency furnace and heated；
（5）When copper in by crucible and phosphorus heating and melting, continue to note inert gas by perforate by aeration equipment
Enter in crucible so that the inert gas of higher pressure is full of in crucible；
（6）Pot cover is opened to be stirred and descum to forming liquid copper-phosphorus brazing alloy after copper and copper heating and melting；
（7）Obtained liquid copper-phosphorus brazing alloy is poured into holding furnace, direct casting is into continuous casting ingot；
（8）A diameter of 40mm of continuous casting ingot；
（9）The step（8）In, the surface treatment mode of continuous casting ingot is pickling or polishing.
Wherein pot cover is made up of graphite, and pot cover is hinged with crucible, while it is preferred that pot cover and graphite crucible orifice configuration phase
Match somebody with somebody, it is possible to achieve interference fit.
Because this scheme is the oxygen dilution in air finally to be drained for manual operation by inert gas, because
This this programme phosphorus content deposits positive and negative 0.001 loss, but such deviation does not influence in itself on solder.
Herein it should be noted that except draining the air in crucible by using inert gas, can also directly use
Air in crucible is evacuated by vavuum pump by the opening on crucible.
Wherein gas blanket is inert gas, and inert gas includes helium, neon, argon, krypton, xenon etc., and gas blanket can be with
It is made up of one or more kinds of inert gases（It is preferably helium herein, price is low）, after by pot cover and crucible bonding, by opening
Mouth increases the pressure in crucible toward the full more helium of sequential filling in graphite crucible.
Operation principle is as follows：
Because the fusing point of copper is 1083 degree, but the boiling point of phosphorus is will gasify after 280 degree, and now copper does not reach also
To fusing point, because crucible is sealed, phosphorus gasify after 280 degree of high temperature after gas will not loss go out, it is ensured that copper-phosphorus brazing alloy
The phosphorus content of stable and consistent can be obtained, while inert gas will not react with phosphorus in crucible, phosphorus content will not be also reduced, most
Afterwards in heating process, phosphorus is slowly absorbed by copper liquid, and after copper all melts, the copper-phosphorus brazing alloy of liquid is sufficiently stirred
Mix, copper liquid is preferably mixed with phosphorus liquid energy, then remove the scum silica frost in liquid copper-phosphorus brazing alloy, it is ensured that liquid copper phosphorus pricker
The purity of material；It is eventually fabricated finished product.
By the finished product produced after the preparation to different phosphorus contents, detected, can meet client's completely
Prepare and require, while reducing the production cycle by this scheme company, saved cost of labor, be conducive to wideling popularize this side
Case.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of manufacture craft of the extrusion ingot containing copper-phosphorus brazing alloy, comprises the following steps：
1. cathode copper, red phosphorus are weighed in proportion, the crucible with pot cover is positioned over, and drain air and sealed crucible in crucible；Wherein
Pot cover is hinged with crucible, and pot cover is provided with perforate, and when covering crucible, the perforate on pot cover is connected with aeration equipment pipeline,
Filling with inert gas in toward crucible is until overflow, and with dirt seal crucible and the phosphorus content covered in place, copper-phosphorus brazing alloy of pot cover
For 7.1wt%；
2. heating crucible, makes the red phosphorus in crucible gradually roast chemical conversion liquid with cathode copper；The filling with inert gas in heating, makes gasification
Red phosphorus afterwards is absorbed by solution, obtains copper phosphorus liquid；
3. uniform stirring step 2. gained copper phosphorus liquid, remove liquid level scum silica frost；Copper phosphorus liquid is poured into holding furnace, direct casting is obtained
Continuous casting ingot；
4. by the continuous casting ingot surface treated of step 3. gained, it is cut into short ingot, extruding, wire drawing obtain finished product.
2. the manufacture craft of the extrusion ingot according to claim 1 containing copper-phosphorus brazing alloy, it is characterized in that：Described step is 1.
In, the material of crucible and pot cover is graphite.
3. the manufacture craft of the extrusion ingot according to claim 1 containing copper-phosphorus brazing alloy, it is characterized in that：The step is 3.
In, a diameter of 40mm of continuous casting ingot.
4. the manufacture craft of the extrusion ingot according to claim 3 containing copper-phosphorus brazing alloy, it is characterized in that：The step is 4.
In, the surface treatment mode of continuous casting ingot is pickling or polishing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410501534.2A CN104400260B (en) | 2014-09-27 | 2014-09-27 | The manufacture craft of extrusion ingot containing copper-phosphorus brazing alloy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410501534.2A CN104400260B (en) | 2014-09-27 | 2014-09-27 | The manufacture craft of extrusion ingot containing copper-phosphorus brazing alloy |
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| CN104400260A CN104400260A (en) | 2015-03-11 |
| CN104400260B true CN104400260B (en) | 2017-08-04 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107553002A (en) * | 2017-09-04 | 2018-01-09 | 湖北汽车工业学院 | A kind of soldering masterbatch and its soldering processes |
| CN111088446B (en) * | 2019-12-31 | 2021-08-17 | 杭州华光焊接新材料股份有限公司 | Copper-phosphorus brazing filler metal and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58128292A (en) * | 1982-01-26 | 1983-07-30 | Furukawa Electric Co Ltd:The | Thin strip of phosphorus copper brazing filler metal |
| CN1377752A (en) * | 2001-04-04 | 2002-11-06 | 费友康 | Smelting method for phosphorus-copper solder |
| CN101530952A (en) * | 2009-04-29 | 2009-09-16 | 江苏科技大学 | Boracic Cu-P-based amorphous brazing filler metal and method for preparing same |
| CN103008915A (en) * | 2012-12-27 | 2013-04-03 | 浙江信和科技股份有限公司 | Low-silver copper-based solder free of spillover phenomenon during weld period |
-
2014
- 2014-09-27 CN CN201410501534.2A patent/CN104400260B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58128292A (en) * | 1982-01-26 | 1983-07-30 | Furukawa Electric Co Ltd:The | Thin strip of phosphorus copper brazing filler metal |
| CN1377752A (en) * | 2001-04-04 | 2002-11-06 | 费友康 | Smelting method for phosphorus-copper solder |
| CN101530952A (en) * | 2009-04-29 | 2009-09-16 | 江苏科技大学 | Boracic Cu-P-based amorphous brazing filler metal and method for preparing same |
| CN103008915A (en) * | 2012-12-27 | 2013-04-03 | 浙江信和科技股份有限公司 | Low-silver copper-based solder free of spillover phenomenon during weld period |
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| CN104400260A (en) | 2015-03-11 |
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Effective date of registration: 20201125 Address after: No.17, Wunan Road, Wuhu County, Wuhu City, Anhui Province 241000 Patentee after: Tang Fei Address before: 430000 705, 706a, building 1, Huigu spacetime, No.206, laowuhuang highway, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee before: Wuhan Tuozhijia Information Technology Co.,Ltd. |
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