Lead tin alloy rod anode/ lead stibium antimony alloy anode/ Pb Sn Sb alloy anode/electrode Description :

Pb-tin alloy is used for the anode to form an insoluble anode. The replenishment of chromium in the chromium plating process is achieved by directly adding chromate to the plating solution. Unlike zinc plating, which requires anode dissolution to provide zinc ions, chromium plating does not require anode dissolution, which means that chromium plating requires insoluble anodes. Lead-tin alloy is used, and some antimony is sometimes added.



Lead tin alloy rod anode/ lead stibium antimony alloy anode/ Pb Sn Sb alloy anode/electrode application: Chrome plating; Electro-polishing

Lead tin alloy rod anode/ lead stibium antimony alloy anode/ Pb Sn Sb alloy anode/electrode features:

1. Dense internal structure, no cold barrier, shrinkage cavity, shrinkage porosity. 
2. It has been extruded many times by special calendering equipment, which has high strength, is not easy to bend and deform, and at the same time improves the conductivity of the anode. 
3. Due to the use of rolling production technology and the increase of tin content, its corrosion resistance has been improved, the surface is not easy to generate lead chromate and passivation, and the anode slag is less, making the plating solution cleaner. 
4. The alloy composition is uniform and there is no segregation phenomenon, and the conductivity is uniform, which improves the uniformity of the chromium plating layer thickness.
5. The connection between the copper hook and the lead-tin rod is coated with glue, so the copper hook will not be corroded. 
6. Long use life.




Lead anode plate for electrowinning/electrorefining/electrolysis


Lead anode plate for copper electrowinning/electrorefining/electrolysis
Lead anode plate for zinc electrowinning/electrorefining/electrolysis
Lead anode plate for manganese  electrowinning/ electrorefining/electrolysis
Lead anode plate for nickel electrowinning/electrorefining/electrolysis
Lead anode plate for Chromium electrowinning/electrorefining/electrolysis




Pb alloy anode is widely used in Zinc, Copper, Nickel, Cobalt and Manganese EW industry for its inert property low production cost . 
Pb alloy rolling plate, with uniform crystal structure, is better in anti-corrosion and mechanical performance stability. 
The hanger bar which is certain mm thickness Pb cladding around Sn electro-plating on copper bar, has better anti-corrosion to acid mist during electro-winning. 
Pb plate connects to hanger bar through two-side welding with Pb cladding, or plate plug-in welding. we also have the Ti-MMO anode. It has better mechanical strength, lower solubleness in the acid, lower resistance, high current with no deformation, maintainability and long-life. It's used to apply in the harsh working environment.  





Lead anode plate advantages
High mechanical strength against warpage and creep(form stability), no casting defects and porosity.
Low oxygen over potential for oxygen evolution.
Quick and stable formation of hard, compact, and adherent protective corrosion layer(conditioning).
High corrosion resistance, higher resistance to initial conditioning, long service life..
Minimized producing cost.
Reduction in cell voltage, increase in current efficiency.
Production of high quality lead free metal cathode product.
No anode or cell cleaning required.
Elimination of cobalt addition required in Zn/Cu/Co/Mn electro-winning.
After assembly, flat smoothing blank surface, vertical to horizontal level, blank flatness error <= 0.2mm.




Lead anode plate applications



Permanent Stainless Steel/titanium Cathode Plates 


Elegant is the most professional company in China to provide our clients with top quality Cathodes and Anodes for nonferrous metallurgy. In the past years, Elegant stainless steel/ titanium cathodes are widely used in domestic and overseas Copper&Nickel electrowinning plant for its excellent performance as below:
 
1. The connection area between Copper and S.S is considerable, thus contribute to a less lose of electric power.
2. High mechanical strength design of hanger bar to prevent scratching, sinking mark and bending.
3. Hanger bar designed with good heat resistance to avoid deformation or degenerate, hanger bar can resistance high temperature up to 700°C cause by short circuit.
4. The laser welding between S.S blank/ Titanium plate and hanger bar can help avoiding the welding gap, thus can maximum prevent welding corrosion. The average service lifetime of cathode is 10-15 years.  
5. By powerful extrusion, the edge strip is deformation free with long lifetime and easy for maintenance.
6. The performance of edge clip bar was stable which can decrease the cost.

Cathode is widely used in Zinc, Copper, Nickel, Cobalt and Manganese EW/ER industry .Copper can be easily deposit on the stainless steel cathode surface and be stripped by auto-stripping machine. The use of stainless steel cathode can save a lot of time and human cost compared to starting sheet. It's an obbligato part in large scale and modernization Copper electro-refinning and Copper electro-winning plant.

Material
Blank:
material - 316L stainless steel plate, Gr 1 or Gr 2 Titanium plate;   

Hanger bar:
Stainless steel cladding around copper bar(Cu-SS)
Copper electro-plating stainless steel bar(SS-Cu)
Triple layer (CS-Cu-SS)
Al cladding Copper ingot, welding to Al bar
Titanium clad copper bar (Ti- Cu)

Edge strip:
PP by mechanical process or extrusion
Advantages
High strength and anti-corrosion hanger bar
Advanced edge strip with round bar for fastening
Special surface polishing treatment to form a passive film
90° "v" shape groove at bottom of blank, Copper cathode
can be more easily stripped in the bottom
10~15 years service lifetime of blank, 1.5year of edge
strip (If Cl- < 40mg/L)
Double side full welding technology
Welding
Perfect welding technology (Double-side full laser welding) is used to connect stainless steel blank / Titanium plate with hanger bar. It does not use flux to connect, which is successful to avoid the weld seam defects and maximize preventing corrosion.



 A hanger bar for a cathode plate and a method of producing a cathode for electrolytic recovery of metal. The hanger bar comprises a support element  which is preferably stainless steel and hollow. An electrically conductive metal cladding is affixed the stainless steel bar by any appropriate mechanism, eg interference fit, welding, chemical or mechanical fastening or coextrusion or roll forming. Affixing the cladding to the stainless steel support element has significant advantages over conventional electroplating techniques including that a more precise engineering specification can be applied to the cladding thickness. This is important to maintain vertical alignment of the cathode plate in the electrolytic cell.Permanent Stainless Steel/titanium Cathode Plates