Model Code: KIGTA25CIS
The KIGTA25 MMO anodes are composed of a titanium substrate coated with a mixed-metal-oxide catalyst. Because the titanium substrate is naturally passivated by an oxidizing film, the anode remains Dimension stable over time. Direct current transfer is accomplished through the mixed-metal-oxide catalyst, which is highly conductive, and fully oxidized so that the higher current outputs are possible.
1.MMO Tubular
Anodes are manufactured using titanium which meets ASTM B338 Grade 1 or
Standards. It has features of High Current Output and Low Coating Wear Rate.
2.Titanium Substrate
Test Standard- ASTM B338 Gr1
CHEMICAL COMPOSITION | |||||
Fe | C | N | H | O | Ti |
≤0.2 | ≤0.08 | ≤0.03 | ≤0.013 | ≤0.18 | remainder |
3.Coating
MMO(Ir-Ta) coating Gr1 Titanium
3.1 Coating Method
Multi layer thermal decomposition of precious metal salts
3.2 Working current：8A
3.3 Anode/Cable Connection Centre connection
Less than 0.01Ohm, epoxy resin encapsulated and helium tested to prove effective seal
3.4 MMO anode size: 25*1000mm, Prepackaged anode size :159*3*2000mm
3.5 Cable size: 1*10 sq.mm Str XLPE/PVC Black Cable
3.6 Working life: more than 20 year
3.7 Model Number:KIGTA25
4. X-Ray Test of MMO Tubular Anode Coating
4.1 Coating Adhesion and Bonding Test
Sample NO. | Adhesion and Bonding | Result |
1 | The sample is bend to 180 with ф 12mm circinal axis, | acceptance |
2 | The sample is bend to 180 with ф 12mm circinal axis, the coating adhesion is strong if coating bend isn’t scaled off. | acceptance |
4.2 Accelerated Life Test of MMO Tubular Anode Coating
Sample NO. | Accelerated life (h) | Total charge density (A-h/m2) | Result |
1 | 870 | 34800000 | acceptance |
2 | 890 | 35600000 | acceptance |
4.3 Test Condition:
1. Sample size : 25mm (length) ⅹ 1000mm (width)
2. Coating area: 200mm2
3. Current: 8.0A
4. Current density : 40000A/m2
5. Electrolyte: 1.0M H2SO4 solution
6. Temperature: 40℃±5℃
7. The ripple of power supply : 43 %
