CN107849638A - Copper alloy containing lead goes lead processing method and removes lead cored wire using the method - Google Patents
Copper alloy containing lead goes lead processing method and removes lead cored wire using the method Download PDFInfo
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- CN107849638A CN107849638A CN201580081517.0A CN201580081517A CN107849638A CN 107849638 A CN107849638 A CN 107849638A CN 201580081517 A CN201580081517 A CN 201580081517A CN 107849638 A CN107849638 A CN 107849638A
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- Prior art keywords
- lead
- agent
- cored wire
- copper
- copper alloy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
- C22B9/103—Methods of introduction of solid or liquid refining or fluxing agents
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/006—Pyrometallurgy working up of molten copper, e.g. refining
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
Abstract
In the copper alloy of brass, bronze etc., it is required that the rod-shaped products based on free-cutting ability contain a certain amount of lead.In the past, these product old metal were recycled with high-recovery.For these product old metal in order to want regeneration to be made low leadwork, it is necessary indispensable to go splicer's sequence, so as to go the research and development of lead technology into the task of top priority.Although in prior art, the material gone containing metallic element calcium in lead technology of copper alloy can play significant effect, and with because going the difference of lead agent and copper alloy proportion or fusing point, and need volume production grade in practical goes lead method.In order to solve this technical problem, the present invention removes lead cored wire for one kind, and its invention feature is：Gone in the fused solution of copper alloy in lead processing intent, crust material is used as using the metal tape for the composition for not influenceing copper alloy fused solution, and flocculation/flotation agent of Pb Ca compounds etc. necessary to going lead agent monomer and/or process removes lead auxiliary agent etc. as internal constituent, and also there is the physical characteristic for the mechanicalness/continuity supply that can bear cored wire feedway.
Description
Technical field
The present invention relates to one kind to remove lead cored wire, goes lead to handle using the fused solution in copper alloy containing lead, and the present invention is also
Be related to this cored wire goes lead processing method.
Background technology
For copper alloy, especially for brass bar, in order to require processability (free-cutting ability), contain it from knowing in the past
The lead of 2~4wt% amounts is effective.And use the target article of brass bar, the e.g. tap of waterworks, various optics
Processing part, the auto parts of machine.In recent years, from the viewpoint of Environmental Regulation, just contain towards reduction or removal brass bar
Gradually strengthen control in the direction of some lead.
Technically the substitute as lead is then by the metal containing bismuth etc., product is had approximate in the past leaded
The processability (free-cutting ability) of brass bar, the fact that such technology has been known.But use high price bismuth, commonly referred to as unleaded
Product still can not completely substitute in performance and use in the past in all products of various purposes.Also, on mainly having used
The brass bar of the tap of waterworks, after considering to the influence of human body, positive exploitation/use reduces lead tolerance, is commonly referred to as
The product of low lead.
But these new products account for that commercioganic ratio is low, all still conventional product is occupied most percentage.It is another
Aspect, the copper alloy products containing brass are manufactured after being dissolved again from old metal mostly, and each article of manufacture is pressed to this old metal
It is extremely difficult that management is done in source.Therefore, the old metal even specially produced from the product of unleaded or low lead method manufacture,
Almost still there is the raw material that very high possibility is mixed with conventional product.
Solution countermeasure as these problems, it is proposed that method (patent document 1) described later：Add metallic element calcium and/
Or copper calcium alloy removes lead after lead and calcium is turned into compound into leaded brass fused solution.Also, it also proposed described later
Method (patent document 2)：Lead material addition will be gone to be mixed into copper alloy fused solution and produce lead-containing compounds, further added
Add silicea lead-containing compounds is dissociated, allow lead-containing compounds separation to be excluded again after floating above.Also, it also proposed method described later
(patent document 3)：Resistance tin agent addition is mixed into copper alloy fused solution, mixing is then added again and goes lead agent, equally make leaded
Compound separation excludes again after floating above.And on the use of cored wire, then it is, for example, to propose method described later (patent document 4)：
The cored wire that desulfuration agent will be coated with iron system strip material, crust material will be put into fusing iron/molten steel, make desulfuration agent and molten iron/
Molten steel is reacted so as to obtain desulfuration effect.
【Background technology file】
Patent document 1：Japanese Patent Laid-Open 10-140254 publications.
Patent document 2：Japanese Patent Laid-Open 2005-8970 publications.
Patent document 3：Japanese Patent Laid-Open 2006-161136 publications.
Patent document 4：Japanese Patent Laid-Open 2008-95136 publications.
The content of the invention
【Invent the problem to be solved】
The method of patent document 1 is the method to implement to go lead lead discharging in compact vessel by raw material 300kg, is temporarily added
Go lead agent and carry out constituent analysis after standing.Also, in the method for patent document 2, as an embodiment it is using bronze 4kg, makes
Spend lead agent 320g, remove silicea 150g, and nitrogen gas are sprayed and are supplied in fused solution.Patent document 3 is then using green grass or young crops again
Copper 5kg, occluding material 400g are tested.These background technologies are all small-scale experimental method, even if for example adding additive
Or be stirred, all it is the scope that can be done with human hand.
In lead purpose is gone, calcium metal is most effect, but because contact water can produce hydrogen when calcium metal is granular/powdery
The water reactivity combustible of gas, so must especially keep prohibiting water state under the volume production stage and take care of in dry cool place
Place, reaction when in addition it must also be noted that putting into fused solution are actually difficult in processing.Due to calcium silicide granulates/powdery when
Also there is same high risk, thus it is problematic in the processing of practical volume production.
Also, the proportion for removing lead agent (Ca density 1.55) or auxiliary agent etc. of these background technologies is small, relative to proportion more than 8
The fused solution of brass or bronze is to float, simple simply to add and sufficiently be gone lead effect.Even with stirring
The method of machine etc. technically contributes to implement, because the setting of device can be suspected, the increased for the treatment of process/time is asked
Topic, so not yet establishing these methods using mixer etc. in the manufacture of practical volume production.
It is necessary during deoxidation/desulfuration/black-lead spheroidizing as cored wire known in the art as shown in patent document 4
After addition raw material is coated in the form of monomer or mixture by crust metal tape made of iron (crust material) respectively, after cladding
Product is as the product put into the molten pig iron for processing, melt cast steel, and such product is used in steel, casting
In industry.
In the past past cored wire inside constituent according to its application target, have deoxidant, desulfuration agent, black-lead spheroidizing
The combinations of the various raw materials such as agent, though crust material can change according to the object of purpose and processing, actually circulation market
The crust metal tape used in product only has thin plate made of iron, except being ready in theory, these workable thin plates made of iron
Metal (such as aluminium) thin plate in addition, is hardly selected from the viewpoint of manufacturing technology/cost/preparation difficulty.
Moreover lead is removed it is an object of the invention to copper alloy, because the iron used, aluminium etc. can influence to carry out lead in the past
Copper alloy quality, so these materials can not be used.The crust material selected in the case is more than composition, in order to want energy
Fused solution is properly supplied by cored wire feedway, also requires physical characteristic described later：In after the shape processing of cored wire
Portion's constituent can be fixed really, and the intensity (tensile strength), soft do not produce fracture during supply, rupture, burst forth etc.
Soft and processability etc..It is the intensity and flexibility of requirement cored wire especially in the case where supplying cored wire by cored wire feedway
Balance.
The main component for going lead agent in the present invention is calcium metal and/or calcification silicon, in addition because removing the proportion of lead auxiliary agent
Also than the copper alloy fused solution that lead is handled need to be gone small, so simply input can float over fused solution surface merely, reaction only can be in table
Face occurs therefore can not obtain desired going lead effect.
In order to effectively be gone lead method, it is necessary to going lead agent to apply the gravity of its corresponding buoyancy, be deposited to it molten
Melt the inside of liquid.In general the floatage energy of fluid is obtained by following formula 1.
(formula 1)
F=ρ Vg
(F=buoyancy, ρ=fluid density, V=object volumes, g=acceleration of gravity)
Assuming that relative to the brass fused solution of density (proportion) 8.2, it is required when settling the calcium metal 10kgs of density 1.55
Power be to be obtained by aftermentioned：By subtracting making a concerted effort for self-weight of object from buoyancy, obtain
(formula 2)
F '=(ρ1- ρ2)Vg
(ρ1=brass density, ρ2=calcium metal density)
So
F '=[8.2 (g/cm3)-1.55(g/cm3)]×[10,000(g)/1.55(g/cm3)]×9.8(m/s2)=420,
452(g·m/s2)≒43kgf。
It is just simple to calculate, it is necessary to have sliding weight of steelyard that 43kgs is vertically hung directly over 1000 DEG C or so of fused solution
Flow chart, or must have the flow chart that fused solution is pressed into by mechanical force.Certainly, with melting in practical volume production
Treating capacity, the target of liquid go lead amount, it is known that this numerical value can significantly increase, and so as to which manpower will be unable to deal with, become desirable for advising greatly
The device of mould.Also, in order to be pressed into fused solution, it relative to temperature/composition of fused solution is not fusible that required casting tool, which is, or
Person must prepare not influenceing the casting tool of the quality of fused solution every time in the case of fused solution is pressed into, which increase
Cost and flow chart, it is not appropriate for practical volume production.
【Solves the technical scheme of problem】
In order to carry out lead in the manufacture of copper alloy volume production, technical scheme and method are that solve above-mentioned skill
Art problem.In the present invention, by coating calcium metal and/or calcium silicide with metal crust material, by with the moisture in air
Contact is preferably minimized and reduces danger, also, this integral shape can also be automatically engaged with cored wire by machinery long lasting for ground,
So go in lead processing to mitigate/solve the problems, such as problem for security and handle in practical volume production.Copper alloy herein
It is the alloy using copper as principal component, and with brass or bronze for main object, but the present invention is not limited to this.
In the present invention, by by comprising going the cored wire of lead agent to be continuously fed to fused solution, avoiding lead agent first by the gross
Input, the reaction force relative to the time per unit of the buoyancy of fused solution is suppressed to Min., disperses lead agent
It is overall in fused solution, so as to which efficiently lead is removed in implementation, and the core of mechanicalness/continuity supply is realized with cored wire feeder
The performance of line, manpower or the dangerous operation process directly over fused solution are also eliminated, solves these technical problems.
What the present invention proposed a kind of copper alloy containing lead herein goes lead processing method, and its feature is, will go respectively lead agent and/
Or the crust material for going lead auxiliary agent individually to be formed severally or after mixing with copper or copper alloy is coated and is formed lead cored wire, and
Go lead sequentially to be supplied with cored wire and be deposited in the fused solution of the copper alloy containing lead to handle to carry out lead by described；
Wherein, it is described to go lead agent as granular or powdery and contain metallic element calcium；
It is described to remove lead auxiliary agent for granular or powdery and containing at least one of aftermentioned raw material：Ca compounds, Pb-Ca compounds
Flocculation/flotation agent, resistance tin material, copper, zinc, tin, or copper, zinc, or tin compound.
Also, the present invention also proposes that one kind goes lead processing method, its feature is, will remove lead as described in coating the crust material
Agent and form go lead to be gone lead cored wire to supply with what is removed lead auxiliary agent described in crust material cladding and formed with cored wire and sunk
Drop in fused solution and carry out lead and handle.
Also, the present invention also proposes that one kind goes lead processing method, its feature is, will remove lead as described in coating the crust material
Agent and/or it is described go at least one of lead auxiliary agent and form go lead with cored wire to be divided into one or many to supply and be deposited to melting
Carry out lead in liquid and handle.
Also, the present invention also proposes that one kind removes lead cored wire, its feature is, by crust material with going lead agent to form, and it is described
Lead agent is gone described in crust material cladding, crust material is by 150~600N/mm of tensile strength2, extensibility 15~60% copper or copper alloy
Form, go lead agent as granular or powdery and contain calcium metal and/or calcium silicide.
Also, the present invention also proposes that one kind removes lead cored wire, its feature is, by crust material with going lead auxiliary agent to form, and institute
State and remove lead auxiliary agent described in crust material cladding, crust material is by 150~600N/mm of tensile strength2, extensibility 15~60% copper or copper
Alloy is formed, and removes lead auxiliary agent for granular or powdery and containing at least one of aftermentioned raw material：Ca compounds, Pb-Ca compounds
Flocculation/flotation agent, resistance tin material, copper, zinc, tin, or copper, zinc, or tin compound.
Also, the present invention also proposes that one kind removes lead cored wire, its feature is, by crust material, goes lead agent and removes lead auxiliary agent structure
Into, and going lead agent to remove lead auxiliary agent with described described in crust material cladding, crust material is by 150~600N/mm of tensile strength2, prolong
The copper or copper alloy of stretching property 15~60% are formed, and are gone lead agent as granular or powdery and are contained calcium metal and/or calcium silicide, go lead to help
Agent is granular or powdery and contains at least one of aftermentioned raw material：Ca compounds, flocculation/flotation agent of Pb-Ca compounds, resistance tin
Material, copper, zinc, tin, or copper, zinc, or tin compound.
Also, the present invention also proposes that one kind removes lead cored wire, its feature is, removes a diameter of 4~30mm of lead cored wire.
Also, the present invention also proposes that one kind removes lead cored wire, its feature is, goes the lead to be with the thickness of the crust material of cored wire
0.1~3mm.
Also, the present invention also proposes a kind of manufacture method for removing lead cored wire, its feature is, by with copper or copper alloy structure
Into crust material shape processing, lead agent will be gone and/or go lead auxiliary agent and crust material to touch fix, and to go lead agent and/or go
The mode that lead auxiliary agent does not move relative to crust material fastens；Wherein, lead agent is gone as granular or powdery and contains calcium metal and/or silicon
Change calcium；Lead auxiliary agent is removed for granular or powdery and containing at least one of aftermentioned raw material：Ca compounds, Pb-Ca compounds flocculation/
Flotation agent, resistance tin material, copper, zinc, tin, or copper, zinc, or tin compound.
【Invention effect】
If according to the present invention, by considering the processing hardening of crust material while there is the structure of appropriate intensity and pliability
Into can prevent the fracture of cored wire, rupture, burst forth, by such characteristic, can automatically carry out and continuously supply appropriate amount to molten
Melt liquid, and can accomplish the practical volume production of copper alloy fused solution goes lead to handle, still further, it is also possible to slow down proportion it is small go lead agent
With the difficulty of the mixed processing of heavy fused solution, and can because reduce largely using high response go lead agent caused by endanger
The dangerous danger with operation directly over fused solution.
Brief description of the drawings
Fig. 1 is to implement the cored wire feedway outline figure of the present invention；
Fig. 2 removes lead cored wire cross sectional illustration figure for expression one embodiment of the invention；
Fig. 3 removes lead cored wire cross sectional illustration figure for expression one embodiment of the invention；
Fig. 4 removes lead cored wire cross sectional illustration figure for expression one embodiment of the invention；And
Fig. 5 removes lead cored wire cross sectional illustration figure for expression one embodiment of the invention.
Embodiment
Cored wire feedway on using in the present invention is to represent Fig. 1 explanations of embodiment.Cored wire feedway
10 be device described later：To supply lead cored wire 1 to the melting furnace of the copper alloy containing lead fused solution of processing the object of the invention
Deng process container 11.Go lead cored wire 1 to be pulled out from the drum 12 for being wound into coiled type, process container is sent to by yarn feeder 13
11。
Yarn feeder 13 is configured to：Pallet 14 is arranged on, after drum 12 pulls out lead cored wire 1, is put into mounted in processing
The fused solution 17 of container 11.This yarn feeder 13 can use various mechanisms, and in general mechanism is：It is multiple by being rotated by motor
Roll and multiple conveying rolls, clamping go lead cored wire 1 to be continued for the pull-out and input.
The appropriate place of pallet 14 is provided with the multiple guides 15 for removing lead cored wire 1, and it will smoothly be drawn out from drum 12
Go lead cored wire 1 to pull out and be transported to yarn feeder 13.Guide wire 16 is provided between yarn feeder 13 and process container 11, it is undertaken
Lead cored wire 1 will be gone to send out with cored wire is constantly put into fused solution 17 with vertical direction.Also, guide wire 16 can be by from pallet
14 support arms 141 stretched out support.
The lower end of guide wire 16 can be to be projected into premised on not contacting fused solution in process container 11.Remove lead cored wire
1 is preferably to be sent to the bottom close to process container 11, and be preferably consider the material of crust material 4, thickness and adjust cored wire
Being sent into speed makes cored wire be melted close to the bottom of process container 11.Use in the present invention go lead cored wire 1 be it is independent or
Merge using calcium metal, calcium silicide as going lead agent 2.Lead agent 2 is gone to use granular or powder.
Also, shown in Fig. 2~Fig. 5 of profile as removed lead cored wire, go lead agent 2 with go lead auxiliary agent 3 can mix after conduct
Remove the inside constituent of lead cored wire, also can be able to be namely that will only go lead agent 2 and remove lead as inscape (Fig. 2, Fig. 3)
One of auxiliary agent 3 is used as internal constituent, independently makes and other removes lead cored wire 1 (Fig. 4, Fig. 5).The characteristics of such
It is to teach, goes lead freely to correspond in practical volume production encounter various with cored wire 1 to go what lead was handled by using multiple
Matrix.Therefore, in the present invention, using as go lead go lead cored wire 1 be comprising it is out of the ordinary individually or lead is removed in synthesis use
Agent 2 and/or the aspect for removing lead auxiliary agent 3.
It is a feature of the present invention that using comprising the metal for not influenceing copper alloy composition be, for example, copper, brass, bronze or
The copper alloy of zinc and tin etc., go lead agent 2 as cladding and/or remove the crust material 4 of lead auxiliary agent 3.
In the crust material of the copper that uses of the present invention or copper alloy different from the use of the cored wire made of iron manufactured by prior art,
It is to show high processing hardening in processing.This is because plastic deformation makes metal increase hardness when assigning metal stresses
Phenomenon, this characteristic can be represented by the size of strain hardening coefficient.It is 0.15 relative in general carbon steel (0.6C steel), this hair
65/35 brass of the bright one of which crust material 4 used is to show 0.53, is more than 3 times of numerical value.This be it is meant that
In the case that copper alloy is processed as crust material 4, it can lose as removing machine of the lead with the flexibility expected to have during cored wire 1 etc.
Energy.
In general, because tensile strength with extensibility is differed widely with material, crust material 4 must be improved
Species and physical characteristic and change cored wire manufacturing condition etc., so as to remove lead cored wire 1 as can bear actual use.For solution
Certainly this problem, it is that the metal for being used in crust material 4 is tested in the present invention, determines on as going lead cored wire to want
The tensile strength preferred scope for the physical characteristic asked is 150~600N/mm2, it is preferably then 15~60% on extensibility.If draw
Intensity is stretched less than 150N/mm2, then the high risk of disconnection can not bears to use, if comparing 600N/mm2Also big, then intensity is too strong
The manufacture of lead cored wire can be influenceed, it is difficult to be also difficult to pull out wound on drum to use.Also, on extensibility, if less than 15%
Then has no the space of deformation, it is difficult to processing that lead manufacture with cored wire and the supply of cored wire are carried out, if than 60% also greatly, can hamper
Shape when size and the supply of lead cored wire is hindered to maintain.
Also, under the purpose that the shape when going lead to manufacture the summary processed and supply with cored wire maintains, lead cored wire is removed
Diameter be preferably 4~30mm.Further, from the point of view of same purpose, in the thickness range for the crust material 4 that the present invention uses
Preferably 0.1mm~3.0mm.The low intensity if less than 0.1mm, the doubt split, disconnected is had, if being more than 3.0mm, conduct
Lead cored wire 1 is gone to become to be difficult to bend, so as to which the manufacture of cored wire and the supply of cored wire can become difficult.
Further, the material and thickness of the crust 41 used in the present invention, in order that removing the point molten metal of lead object
In inside constituent can efficiently act on, it is also additional to calculate the result for melting position/time, and from considering physical characteristic
With go lead effect matrix scope set forth above in select optimal scope.Also, the material on this crust material 4, JIS
The quality that (JIS) specification product numbering C1020-1441, same specification product numbering C2100-4640 are recorded is suitable
The use of these materials is convenient in practicality in the above-mentioned material used.
Go lead to use the various additives of following supply as improving by the use of the inside constituent of cored wire and go going for lead effect
Lead auxiliary agent 3.Lead auxiliary agent 3 is gone to use granular or powder.E.g.：Contribute in lead cored wire go lead agent fixation and
CaF2, CaCO3, CaO for reacted slag former etc. Ca compounds 31, flocculation/flotation agent 32 of Pb-Ca compounds,
Commonly referred to as hindering mineral comprising sodium fluoride or alumina silica glass of tin agent etc. 33 and forming goes lead to deal with objects
The copper of copper alloy composition, zinc, the metal of tin etc. or such compound 34, and this composition removes the copper alloy that lead is dealt with objects
The metal of the copper of composition, zinc, tin etc., to contribute to the fused solution composition for going the fixation of lead agent and going after lead in lead cored wire
Adjustment.Described these are selectable as desired additive and are included in go in lead cored wire.Also, the features of the present invention also exists
In manufacture includes when removing lead cored wire of these additive monomers, and additive monomer alternative only has Ca compounds in this way
31 (Fig. 5), only flocfloatation agent or only resistance tin agent or the only metal/compound of copper etc..Only lead is gone to help comprising these
The cored wire of agent also referred to as goes lead to aid in cored wire.As previously discussed, lead cored wire 1 is gone to include：More than a kind is coated with crust material
Go lead agent to coat a kind with the aspect for the lead auxiliary agent that gets on, with crust material with a kind and coat a kind with the aspect for lead agent of getting on, with crust material
With the aspect for the lead auxiliary agent that gets on.Further, it is to include：1 kind is coated with lead agent and a kind of state for removing lead auxiliary agent of getting on crust material
Sample and with crust material coat a kind go lead agent and a kind of aspect with the lead auxiliary agent that gets on.
When will go lead agent 2, go the lead auxiliary agent 3 to accumulate, be fixed on cored wire 1, its extension is played when lead is processed with cored wire 1
Property, and make lead by the use of cored wire 1 with going lead agent 2 as internal constituent or going the contiguity of lead auxiliary agent 3 simultaneously condensing.As foregoing side
One of method, can be by the both ends of crust material 4 for example, by being coated after riveting tool 5 fastens.
【Embodiment】
In order to confirm the actual effect of the present invention, the reality shown in table 1 has been carried out using the cored wire feedway 10 shown in Fig. 1
Test.
[table 1]
In above-described embodiment 1 and 2, lead cored wire 1 will be gone to be continuously fed into the fused solution 17 of brass.The present invention's goes
The problems such as lead cored wire 1 can not be broken, rupture, bursting forth predetermined quantity (length) is put into inside fused solution and entered
Lead is removed in row upper table.It can determine whether out from embodiment：Coordinate weight, temperature, the shape of container of fused solution, be that can set system
Make, supply the condition for most preferably removing lead cored wire.From the result of above-described embodiment, also demonstrate that the present invention can accomplish it is aftermentioned
What background technology example can not be realized removes lead：Using physical device under volume production scale in units of tens of kilograms.It is also, of the invention
The problems such as can not also being broken, ruptured simultaneously using the crust material of non-background technology, being burst forth, thus it can determine whether out, for this
Characteristic required by the crust material that patent of invention is specified is to meet that condition described later can be born：The manufacture of lead cored wire can be born
With mechanical supply.
Subsidiary one is mentioned that, though carrying out the experiment using brass in the described embodiment, apparently the present invention is simultaneously
Brass is not limited to, is equally also applicable the copper alloy of bronze etc..
【Usability in industry】
For the copper alloy products containing brass, in view of in the product present situation being melted again by old metal mostly
After manufacture, so as to using old metal as raw material remanufacturing come the good copper alloy of production quality be particularly important.The present invention
The lead contained in copper alloy extremely can be efficiently removed, copper alloy in good condition can be largely remanufactured and improve copper
The quality of alloy product, moreover it is possible to seek to reduce the cost of the product of foregoing manufacture, practical function is very big.
Claims (9)
1. a kind of copper alloy containing lead goes lead processing method, it is characterised in that will go lead agent respectively and/or go lead auxiliary agent individually each
The crust material not formed with copper or copper alloy or after mixing is coated and is formed lead cored wire, and removes lead cored wire by described
Sequentially supply and be deposited in the fused solution of the copper alloy containing lead and handled to carry out lead；
Wherein, it is described to go lead agent as granular or powdery and contain metallic element calcium；
It is described to remove lead auxiliary agent for granular or powdery and containing at least one of aftermentioned raw material：The wadding of Ca compounds, Pb-Ca compounds
Solidifying/flotation agent, resistance tin material, copper, zinc, tin, or copper, zinc, or tin compound.
2. according to claim 1 go lead processing method, it is characterised in that will go lead agent as described in coating the crust material
And form go lead with cored wire with coated by the crust material described in remove lead auxiliary agent and form go lead cored wire to supply and settle
Carry out lead into fused solution and handle.
3. according to claim 1 or 2 go lead processing method, it is characterised in that will be gone as described in coating the crust material
Lead agent and/or it is described go at least one of lead auxiliary agent and form go lead with cored wire to be divided into one or many to supply and be deposited to molten
Melt in liquid and carry out lead and handle.
4. one kind removes lead cored wire, it is characterised in that by crust material with going lead agent to form, and removes lead described in crust material cladding
Agent, the crust material is by 150~600N/mm of tensile strength2, extensibility 15~60% copper or copper alloy form, it is described to remove lead
Agent is granular or powdery and contains calcium metal and/or calcium silicide.
5. one kind removes lead cored wire, it is characterised in that by crust material with going lead auxiliary agent to form, and is gone described in crust material cladding
Lead auxiliary agent, the crust material is by 150~600N/mm of tensile strength2, extensibility 15~60% copper or copper alloy form, it is described
Lead auxiliary agent is removed for granular or powdery and containing at least one of aftermentioned raw material：Flocculation/flotation of Ca compounds, Pb-Ca compounds
Agent, resistance tin material, copper, zinc, tin, or copper, zinc, or tin compound.
6. one kind removes lead cored wire, it is characterised in that by crust material, go lead agent and go lead auxiliary agent to form, and the crust material bag
Lead agent is gone to remove lead auxiliary agent with described described in covering, the crust material is by 150~600N/mm of tensile strength2, extensibility 15~60%
Copper or copper alloy are formed, described to go lead agent as granular or powdery and contain calcium metal and/or calcium silicide, and described to remove lead auxiliary agent be grain
Shape or powdery simultaneously contain at least one of aftermentioned raw material：Ca compounds, Pb-Ca compounds flocculation/flotation agent, resistance tin material,
Copper, zinc, tin, or copper, zinc, or tin compound.
7. remove lead cored wire according to any one of claim 4 to 6, it is characterised in that described to go the straight of lead cored wire
Footpath is 4~30mm.
8. remove lead cored wire according to any one of claim 4 to 7, it is characterised in that described to remove the outer of lead cored wire
The thickness of skin material is 0.1~3mm.
9. a kind of manufacture method for removing lead cored wire, it is characterised in that by the shape of the crust material formed with copper or copper alloy
Processing, lead agent will be gone and/or go lead auxiliary agent to touch fixation with crust material, and to go lead agent and/or remove lead auxiliary agent relative to crust
The mode that material does not move fastens；
Wherein, it is described to go lead agent as granular or powdery and contain calcium metal and/or calcium silicide；
It is described to remove lead auxiliary agent for granular or powdery and containing at least one of aftermentioned raw material：The wadding of Ca compounds, Pb-Ca compounds
Solidifying/flotation agent, resistance tin material, copper, zinc, tin, or copper, zinc, or tin compound.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/082039 WO2017081824A1 (en) | 2015-11-13 | 2015-11-13 | De-leading treatment method for lead-containing copper alloy and de-leading cored wire used in said method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107849638A true CN107849638A (en) | 2018-03-27 |
Family
ID=56244650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580081517.0A Pending CN107849638A (en) | 2015-11-13 | 2015-11-13 | Copper alloy containing lead goes lead processing method and removes lead cored wire using the method |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20180195149A1 (en) |
| EP (1) | EP3375896A4 (en) |
| JP (1) | JP5940746B1 (en) |
| KR (1) | KR20180034643A (en) |
| CN (1) | CN107849638A (en) |
| WO (1) | WO2017081824A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371248A (en) * | 2018-12-04 | 2019-02-22 | 宁波长振铜业有限公司 | A method of reducing lead content in waste and old brass |
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| CA1095259A (en) * | 1978-03-14 | 1981-02-10 | Derek E. Tyler | Addition of reactive elements in powder wire form to copper base alloys |
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2015
- 2015-11-13 EP EP15908341.9A patent/EP3375896A4/en not_active Withdrawn
- 2015-11-13 JP JP2015557248A patent/JP5940746B1/en active Active
- 2015-11-13 WO PCT/JP2015/082039 patent/WO2017081824A1/en unknown
- 2015-11-13 CN CN201580081517.0A patent/CN107849638A/en active Pending
- 2015-11-13 US US15/740,816 patent/US20180195149A1/en not_active Abandoned
- 2015-11-13 KR KR1020187006012A patent/KR20180034643A/en not_active Application Discontinuation
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| CN109371248A (en) * | 2018-12-04 | 2019-02-22 | 宁波长振铜业有限公司 | A method of reducing lead content in waste and old brass |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2017081824A1 (en) | 2017-11-09 |
| US20180195149A1 (en) | 2018-07-12 |
| JP5940746B1 (en) | 2016-06-29 |
| WO2017081824A1 (en) | 2017-05-18 |
| KR20180034643A (en) | 2018-04-04 |
| EP3375896A4 (en) | 2019-05-22 |
| EP3375896A1 (en) | 2018-09-19 |
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Application publication date: 20180327 |