CN106756228B - A method of extending the calendering alloy lead anode material military service service life - Google Patents
A method of extending the calendering alloy lead anode material military service service life Download PDFInfo
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- CN106756228B CN106756228B CN201611095037.2A CN201611095037A CN106756228B CN 106756228 B CN106756228 B CN 106756228B CN 201611095037 A CN201611095037 A CN 201611095037A CN 106756228 B CN106756228 B CN 106756228B
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- 239000010405 anode material Substances 0.000 title claims abstract description 65
- 239000000956 alloy Substances 0.000 title claims abstract description 63
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 61
- 238000003490 calendering Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 40
- 229910052782 aluminium Inorganic materials 0.000 claims description 49
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 49
- 239000004411 aluminium Substances 0.000 claims description 48
- 239000011575 calcium Substances 0.000 claims description 44
- 229910052791 calcium Inorganic materials 0.000 claims description 41
- 239000000463 material Substances 0.000 claims description 37
- 229910052712 strontium Inorganic materials 0.000 claims description 33
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 19
- 238000005096 rolling process Methods 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 12
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 11
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 9
- -1 thickness 6mm Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 21
- 239000013078 crystal Substances 0.000 abstract description 18
- 229910052751 metal Inorganic materials 0.000 abstract description 13
- 239000002184 metal Substances 0.000 abstract description 10
- LWUVWAREOOAHDW-UHFFFAOYSA-N lead silver Chemical compound [Ag].[Pb] LWUVWAREOOAHDW-UHFFFAOYSA-N 0.000 description 22
- 230000007797 corrosion Effects 0.000 description 12
- 238000005260 corrosion Methods 0.000 description 12
- DPDORTBBLUCNJG-UHFFFAOYSA-N calcium tin Chemical compound [Ca].[Sn] DPDORTBBLUCNJG-UHFFFAOYSA-N 0.000 description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 239000011701 zinc Substances 0.000 description 10
- 229910052725 zinc Inorganic materials 0.000 description 10
- 230000007547 defect Effects 0.000 description 9
- 238000004070 electrodeposition Methods 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 238000012876 topography Methods 0.000 description 8
- 229910018725 Sn—Al Inorganic materials 0.000 description 6
- 238000005137 deposition process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- 238000005363 electrowinning Methods 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 238000013507 mapping Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007499 fusion processing Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 239000001828 Gelatine Substances 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000002142 lead-calcium alloy Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- LEDMRZGFZIAGGB-UHFFFAOYSA-L strontium carbonate Chemical compound [Sr+2].[O-]C([O-])=O LEDMRZGFZIAGGB-UHFFFAOYSA-L 0.000 description 1
- 229910000018 strontium carbonate Inorganic materials 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C11/00—Alloys based on lead
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C11/00—Alloys based on lead
- C22C11/06—Alloys based on lead with tin as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/12—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of lead or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
The invention discloses a kind of methods extending the calendering alloy lead anode material military service service life, belong to technical field of nonferrous metal processing.Subsequent processing is carried out to calendering alloy lead anode material using heat treatment process, heat treatment temperature is 180~270 DEG C, 3~60min of heat treatment time.This method releases the forming residual stress of calendering alloy lead anode material, optimizes surface crystal structure, significantly extends the service life of calendering alloy lead anode material.
Description
Technical field
The invention belongs to non-ferrous metals processing fields, and in particular to a kind of extension calendering alloy lead anode material military service service life
Method.
Background technology
Anode generally use pb-ag alloy/lead-calcium alloy material in the non-ferrous metal electrodepositions slot such as copper, zinc, manganese.It is wherein silver-colored
Effect be to reduce overpotential for oxygen evolution and corrosion rate of the lead in electrolytic deposition process, reach to reduce power consumption and extend anode and be on active service the longevity
The purpose of life.The mechanical performance of lead anode is poor, and bending is easily deformed upon in electrolytic deposition process, leads to the short circuit of negative and positive interpolar,
To reduce current efficiency and so that the cathodic metal product of short-circuited region is returned molten.In order to enhance the mechanicalness of alloy lead anode material
Can, the addition element calcium usually into lead.Since calcium is easy scaling loss in fusion process, therefore a small amount of metallic aluminium is added, in melting
Cheng Zhong, aluminium float on metal liquid surface layer, reduce the contact area of calcium and air, inhibit the scaling loss of calcium.
A large amount of shrinkage cavity is had in as cast condition alloy lead anode material surface and wrinkle defect generates, these defects are in electrodeposition mistake
By as the center erosion source of local corrosion initial stage in journey, causes the local corrosion of alloy lead anode material and reduce anode
The chemical property of material.
In order to reduce shrinkage cavity and wrinkle defect existing for as cast condition alloy lead anode material surface, rolling or extruding etc. can be used
Technology carries out calendering processing to as cast condition alloy lead anode material, be made meet the size requirements, the plate-shaped anode material that surface is smooth.
Alloy lead anode material after calendering is processed, substantially reduces the casting flaws such as shrinkage cavity and fold, improves anode material
Mechanical strength.But it is disadvantageous in that, since anode material has accumulated a large amount of pile-up of dislocation in process and processes residual
Residue stress causes anode to be also easy to produce the local corrosion defect of creep and area of stress concentration in electrolytic deposition process, reduces anode
Service life.
Invention content
The object of the present invention is to provide a kind of method extending the calendering alloy lead anode material military service service life, feature exists
In carrying out subsequent processing to calendering alloy lead anode material with heat treatment method, heat treatment temperature is 180~270 DEG C, is heat-treated
3~60min of time.
The calendering deformation total amount of the calendering alloy lead anode material is not less than 80%.
The content of each component is in the calendering alloy lead anode material：Silver 0~0.20wt%, 0~0.10wt% of calcium, tin
0~2.00wt%, 0.00~0.05wt% of strontium, 0.00~0.01wt% of aluminium, remaining is lead.
Heat treatment method as described above：Preferably, it is 95% plate alloy lead anode material to take rolling deformation total amount, thick
Degree is 6mm, and chemical composition is：Silver-colored 0.20wt%, calcium 0.08wt%, strontium 0.04wt%, aluminium 0.002wt%, remaining is lead；It should
Material is positioned in 270 DEG C of baking oven and keeps the temperature 3min.
Heat treatment method as described above：Preferably, it is 80% plate alloy lead anode material to take rolling deformation total amount, thick
Degree is 10mm, and chemical composition is：Silver-colored 0.20wt%, calcium 0.08wt%, strontium 0.04wt%, aluminium 0.002wt%, remaining is lead；It will
The material is positioned in 180 DEG C of baking oven and keeps the temperature 40min.
Heat treatment method as described above：Preferably, it is 90% plate alloy lead anode material to take rolling deformation total amount, thick
Degree is 8mm, and chemical composition is：Calcium 0.08wt%, tin 1.60wt%, aluminium 0.002wt%, remaining is lead；The material is positioned over
8min is kept the temperature in 210 DEG C of baking oven.
The calendering alloy lead anode material obtained using above-mentioned heat treatment method.
The beneficial effects of the present invention are：The present invention is heat-treated calendering alloy lead anode material, the pressure after improvement
Prolong alloy lead anode material and be orientated crystal structure random, more than special grain boundary quantity with crystal grain, with the pressure not being heat-treated
Prolong the crystal grain of alloy lead anode material and is orientated that consistent, there are the crystal structures of a large amount of pile-ups of dislocation to be formed on calendering machine direction
Sharp contrast.
During the non-ferrous metal electrodepositions such as copper, zinc, manganese, alloy lead anode material is immersed in sulfuric acid-stannous sulphate electrolyte
In, corrode at the defects of preferentially betiding pile-up of dislocation and residual stress concentrations area, and form electrochemical corrosion, creep and stress
The multi- scenarios method of corrosion acts on, and accelerates the corrosion of alloy lead anode material, leads to alloy lead anode premature failure.Using the present invention
Calendering alloy lead anode after method improves can be big relative to traditional calendering alloy lead anode for not carrying out heat treatment process
Width reduces the corrosion rate of anode, significantly extends the service life of calendering alloy lead anode.Test result shows using the present invention
Alloy lead anode material after method improvement is in electrolytic deposition process, compared to traditional similar calendering anode, secondary creep rates
75% or more is reduced, corrosion rate reduces 30%, and average service life improves 30% or more.
Description of the drawings
Fig. 1 a are the surface topography map of 1 tradition calendering lead silver calcium strontium aluminium anodes material of comparative example；
Fig. 1 b are crystal grain orientation mapping (OIM) figure of 1 tradition calendering lead silver calcium strontium aluminium anodes material of comparative example；
Fig. 2 a are the surface topography map of 2 tradition calendering lead calcium tin aluminium anodes material of comparative example；
Fig. 2 b are the OIM figures of 2 tradition calendering lead calcium tin aluminium anodes material of comparative example；
Fig. 3 a are the surface topography map of calendering lead silver calcium strontium aluminium anodes material of the embodiment 1 after this method improves；
Fig. 3 b are the OIM figures of calendering lead silver calcium strontium aluminium anodes material of the embodiment 1 after this method improves；
Fig. 4 a are the surface topography map of calendering lead calcium tin aluminium anodes material of the embodiment 3 after this method improves；
Fig. 4 b are the OIM figures of calendering lead calcium tin aluminium anodes material of the embodiment 3 after this method improves.
Specific implementation mode
The present invention provides a kind of methods extending the calendering alloy lead anode material military service service life, including following technical side
Case：
A method of extending the calendering alloy lead anode material military service service life, this method is using heat treatment process to rolling lead
Alloy anode material carries out subsequent processing, and heat treatment temperature is 180~270 DEG C, 3~60min of heat treatment time.The present invention is especially right
The improvement of following calendering alloy lead anode materials is apparent：The total deformation quantity of calendering of the calendering alloy lead anode material is not less than
80%, rolling the content of each component in alloy lead anode material is：0~0.20wt% of metallic silver, 0~0.10wt% of calcium metal,
0~2.00wt% of metallic tin, 0.00~0.05wt% of Preparation of Metallic Strontium, 0.00~0.01wt% of metallic aluminium, remaining is metallic lead.
Wherein, electrowinning zinc, manganese are used according to different calendering deformation quantities at different heat with calendering alloy lead anode material
Science and engineering skill.When rolling total deformation quantity not higher than 85%, heat treatment temperature is between 180 DEG C~210 DEG C, and soaking time 30~
60min；When rolling total deformation quantity higher than 85%, heat treatment temperature should be not less than 210 DEG C, and soaking time is no more than 8min.Mesh
Preceding electrowinning zinc, manganese calendering alloy lead anode material usual 0.15~1.0wt% of argentiferous, 0~0.1wt% of calcic, containing strontium 0~
0.05wt%, 0~0.005wt% containing aluminium, remaining is metallic element lead.The effect of wherein doped chemical silver is to reduce metal sun
The overpotential for oxygen evolution of pole material and the corrosion rate for reducing anode material；The effect of doped chemical calcium is enhancing alloy lead anode material
The mechanical performance of material；The effect of doped chemical strontium is to improve the corrosion resistance of alloy lead anode material；The effect of doped chemical aluminium is
Reduce scaling loss amount of the active dopant element calcium in fusion process.It is precipitated in cathode since metallic element tin can be better than zinc, thus it is electric
It cannot contain element tin in product zinc alloy lead anode material.
Electro deposited copper keeps the temperature heat treatment process with calendering alloy lead anode material using high temperature, short time.Heat treatment temperature should not be low
In 210 DEG C, soaking time is no more than 10min.At present electro deposited copper with the usual calcic of calendering alloy lead anode material 0.05~
0.1wt%, stanniferous 0.8~2.0wt%, 0~0.005wt% containing aluminium, remaining is metallic element lead.The wherein work of doped chemical tin
With the corrosion rate for being reduction anode material.
The present invention is particularly evident more than the improvement of 80% alloy lead anode material to rolling total deformation quantity, on the one hand
Most of pile-up of dislocation defect can be eliminated, so that special grain boundary quantity is increased sharply, doped chemical Dispersed precipitate；On the other hand it also eliminates
The residual stress that large deformation amount is come to calendering alloy lead anode material strips.
It further illustrates the present invention in the following with reference to the drawings and specific embodiments, these embodiments are not to be to limit of the invention
System, any equivalent replacement or known change belong to the scope of the present invention.
Comparative example 1
The rolling lead silver calcium strontium aluminium alloy anode material of market purchase, dimensions are 480 × 600 × 6mm, chemical composition
For：Silver-colored 0.2wt%, calcium 0.08wt%, strontium 0.04wt%, aluminium 0.002wt%, remaining is lead.Commercially available calendering lead silver calcium strontium aluminium
The surface topography of alloy anode material is as shown in Figure 1a.As seen from the figure, the lead silver calcium strontium aluminium after large deformation amount (95%) rolling
The Fu Yinxiang on alloy sample surface is distributed along rolling direction in striated substantially.Fig. 1 b show that commercially available calendering lead silver calcium strontium aluminium closes
The crystal grain orientation mapping figure of gold anode material.It can be seen from the figure that the lead silver calcium strontium aluminium after large deformation amount (95%) rolling
It distributed 1 crystal boundaries of a large amount of Σ in alloy sample, illustrate to have accumulated in the lead silver calcium strontium aluminium alloy material processed through large deformation amount big
The pile-up of dislocation of amount and residual stress is not discharged fully.
The 1 crystal boundary ratios of Σ of commercially available calendering lead silver calcium strontium aluminium alloy anode material, Σ 3n(1≤n≤3) crystal boundary ratio and
Performance of material during Zinc electrolysis is shown in Table 1.
The performance detection of lead-based anode material in this comparative example, embodiment 1 and embodiment 2 is in practical Zinc electrolysis system
Middle progress, testing result are shown in Table 1.Electrowinning zinc condition involved by performance detection is as follows：
[Zn2+]60g/l,[H2SO4]180g/l,[Mn2+]5g/l,[SrCO3] 0.02g/l, gelatine 0.002g/l, electric current is close
Spend 550A/m2, anode and cathode spacing 30mm, 38 ± 2 DEG C of electric effusion temperature, Winning cell 500 × 650 × 500mm of size, metal sun
450 × 580 × 6~10mm of plate dimensions, cathode aluminum plate 460 × 580 × 2mm of size, electrodeposition flow velocity 160l/h, electrodeposition time
600 days.
Comparative example 2
The rolling Pb-Ca-Sn-Al alloy anode material of market purchase, dimensions are 580 × 760 × 8mm, chemical composition
For：Calcium 0.08wt%, tin 1.6wt%, aluminium 0.002wt%, remaining is lead.Commercially available calendering Pb-Ca-Sn-Al alloy anode material
Surface topography is as shown in Figure 2 a.As seen from the figure, the Pb-Ca-Sn-Al alloy specimen surface after larger deformation quantity (90%) rolling is deposited
In a large amount of Pb3Ca precipitated phases, these precipitated phases will reduce corrosion resistance of the alloy lead anode in electrodeposition system.Fig. 2 b are commercially available
Roll the crystal grain orientation mapping figure of Pb-Ca-Sn-Al alloy anode material.It can be seen from the figure that after larger deformation quantity (90%),
Matrix grain extends along rolling direction, is in irregular strip, and there are 1 crystal boundaries of a large amount of Σ, illustrates to process through larger deformation quantity
Pb-Ca-Sn-Al alloy material in do not discharged fully there are a large amount of pile-up of dislocation defects and residual stress.
The 1 crystal boundary ratios of Σ of commercially available calendering Pb-Ca-Sn-Al alloy anode material, Σ 3n(1≤n≤3) crystal boundary ratio and should
Performance of the material in copper electrolytic deposition process is shown in Table 1.
The chemical property of lead-based anode material in this comparative example and embodiment 3 detects in practical copper electrodeposition system
It carries out, detection the results are shown in Table 1.The involved electro deposited copper process conditions of chemical property detection are as follows：
[Cu2+] 45g/l, [H2SO4] 170g/l, total Fe 3g/l, [Cl-] 6.2mg/l, [Co2+] 110mg/l, [Mn2+]
0.82mg/l, current density 180A/m2, anode and cathode spacing 80mm, 45 ± 2 DEG C of electric effusion temperature, Winning cell size 500 × 650
× 620mm, alloy lead anode 450 × 580 × 8mm of board size, cathode 316L stainless steel 460 × 590 × 1mm of size, electric effusion
Flow velocity 100l/h, 1200 days electrodeposition time.
Embodiment 1
By described in comparative example 1 commercially available calendering lead silver calcium strontium aluminium anodes material (dimensions be 480 × 600 × 6mm,
Chemical composition is：Silver-colored 0.2wt%, calcium 0.08wt%, strontium 0.04wt%, aluminium 0.002wt%, remaining is lead) it is placed in 270 DEG C of baking
3min is kept the temperature in case, is taken out air-cooled.The surface topography of calendering lead silver calcium strontium aluminium anodes material after heat treatment is as shown in Figure 3a.
As seen from the figure, relative to commercially available lead silver calcium strontium aluminium anodes material not treated by the present method, lead silver calcium strontium aluminium after heat treatment
The Fu Yinxiang on anode material surface is in dotted Dispersed precipitate, segregation-free defect.By Fig. 3 b it is found that the calendering after treated by the present method
The surface of lead silver calcium strontium aluminium anodes material is random by being orientated, the tiny equiax crystal composition of crystal grain.Due to the city improved through the method
Sell calendering lead silver calcium strontium aluminium anodes material there are a large amount of twins on surface, compared with commercially available calendering lead silver calcium strontium aluminium anodes
Material, special grain boundary quantity have apparent growth.Through 270 DEG C heat preservation 3min treated calendering lead silver calcium strontium aluminium anodes material
It is shown in Table 1 in the performance of Zinc electrolysis process.
Embodiment 2
To roll commercially available lead silver calcium strontium aluminium anodes material that total deformation quantity is 80% (dimensions is 720 × 960 ×
10mm, chemical composition are：Silver-colored 0.2wt%, calcium 0.08wt%, strontium 0.04wt%, aluminium 0.002wt%, remaining is lead) it is placed in 180
DEG C baking oven in keep the temperature 40min, take out air-cooled.Through 180 DEG C of heat preservation 40min treated calendering (total deformation quantity be 80%) lead silver
Calcium strontium aluminium anodes material is shown in Table 1 in the performance of Zinc electrolysis process.
Embodiment 3
By the commercially available calendering lead calcium tin aluminium anodes material described in comparative example 2, (dimensions is 580 × 760 × 8mm, is changed
Group becomes：Calcium 0.08wt%, tin 1.6wt%, aluminium 0.002wt%, remaining is lead) it is placed in 210 DEG C of baking oven and keeps the temperature 8min,
It takes out air-cooled.The surface topography of calendering lead calcium tin aluminium anodes material after heat treatment is as shown in fig. 4 a.As seen from the figure, relative to
Commercially available lead calcium tin aluminium anodes material not treated by the present method, the Pb of lead calcium tin aluminium anodes material surface after heat treatment3Ca
Phase amount is precipitated to significantly reduce, and Pb3Ca precipitated phase agglomerated defects are also improved.By Fig. 4 b it is found that after treated by the present method
Calendering lead calcium tin aluminium anodes material surface it is random by being orientated, the tiny equiax crystal composition of crystal grain.Due to improving through the method
Commercially available calendering lead calcium tin aluminium anodes material surface there are a large amount of twin, compared with commercially available calendering lead silver calcium strontium aluminium sun
Pole material, special grain boundary quantity have apparent growth.Through 210 DEG C heat preservation 8min treated calendering lead calcium tin aluminium anodes material
It is shown in Table 1 in the performance of copper electrolytic deposition process.
Performance of the 1 lead-based alloy anode material of table during non-ferrous metal electrodeposition compares
Claims (3)
1. a kind of method extending the calendering alloy lead anode material military service service life, which is characterized in that take the rolling deformation total amount to be
95% plate alloy lead anode material, thickness 6mm, chemical composition are：Silver-colored 0.20wt%, calcium 0.08wt%, strontium
0.04wt%, aluminium 0.002wt%, remaining is lead；The material is positioned in 270 DEG C of baking oven and keeps the temperature 3min.
2. a kind of method extending the calendering alloy lead anode material military service service life, which is characterized in that take the rolling deformation total amount to be
80% plate alloy lead anode material, thickness 10mm, chemical composition are：Silver-colored 0.20wt%, calcium 0.08wt%, strontium
0.04wt%, aluminium 0.002wt%, remaining is lead；The material is positioned in 180 DEG C of baking oven and keeps the temperature 40min.
3. a kind of method extending the calendering alloy lead anode material military service service life, which is characterized in that take the rolling deformation total amount to be
90% plate alloy lead anode material, thickness 8mm, chemical composition are：Calcium 0.08wt%, tin 1.60wt%, aluminium
0.002wt%, remaining is lead；The material is positioned in 210 DEG C of baking oven and keeps the temperature 8min.
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