HVG MARINE ANODE 0003

HVG MARINE ANODE 0003: Galvanic Anode

Galvanic anode còn được gọi là ‘anode hy sinh’, được sử dụng để bảo vệ vỏ tàu, máy nước nóng, đường ống, hệ thống phân phối, bể chứa trên mặt đất, bể chứa ngầm và nhà máy lọc dầu. Các anode trong hệ thống bảo vệ cathodic bằng anode hy sinh phải được kiểm tra định kỳ và thay thế khi tiêu thụ.

Phân loại theo cách sử dụng:

Loại hàn Anode hy sinh cho thân tàu (Chân sắt đơn)
Loại hàn Anode hy sinh cho vỏ tàu (Chân sắt đôi)
Loại kết nối bu lông Anode hy sinh cho thân tàu
Anode hy sinh cho bể chứa nước dằn
Anode hy sinh cho các cơ sở kỹ thuật ngoài khơi
Anode hy sinh cho các cơ sở kỹ thuật bến cảng
Hình dạng dải Anode hy sinh cho hệ thống làm mát nước biển
Hình dạng đĩa Anode hy sinh cho hệ thống làm mát nước biển
Anode hy sinh cho bể chứa

Phân loại theo hình dạng: Tấm, Thanh, Ruy băng , Khối

Technical specification:

1.Magnesium Alloy Sacrificial Anode
2.Aluminum Alloy Sacrificial Anode
3.Zinc Alloy Sacrificial Anode
4.Impressed Current High Silicon Cast Iron Anode

Magnesium alloy sacrificial anode is suitable for the anti-corrosion protection of oil, gas, water supply and drainage pipelines in underground fresh water, underground cables, chemical industry, communication, harbor, ship, reservoir and other projects.

Chemical Composition

Grade	Alloying Elements				Impurity Elements (no greater than)
Grade	Al	Zn	Mn	Mg	Fe	Cu	Ni	Si	Ca
MGAZ63B	5.3-6.7	2.5-3.5	0.15-0.60	margin	0.003	0.01	0.001	0.08	–
MGAZ31B	2.5-3.5	0.60-1.4	0.20-1.0	margin	0.003	0.01	0.001	0.08	0.04
MGM1C	≤0.01	–	0.50-1.3	margin	0.01	0.01	0.001	0.05	–
MG	≤0.02	≤0.03	≤0.01	≥99.9%	0.005	0.004	0.001	0.01	–

Electrochemical Performance

Grade	Open Circuit Potential	Closed Circuit Potential	Actual Capacitance	Current Efficiency
Grade	-V,Cu/CuSO4	-V,Cu/CuSO4	-(A*h/kg)	%
MGAZ63B	1.57-1.67	1.52-1.57	≥1210	≥55
MGAZ31B	1.57-1.67	1.47-1.57	≥1210	≥55
MGM1C	1.77-1.82	1.64-1.69	≥1100	≥50

Standard Specification for Magnesium Anode

Size	Specification	Weight (kg)
Size	Length(upper bottom+lower bottom)Height	Weight (kg)
MG-22	700×(130+150)×125	22.00
MG-14	700×(120+100)×102	14.00
MG-11	700×(110+90)×88	11.00
MG-8	700×(95+75)×75	8.00
MG-4	350×(95+75)×75	4.00
MG-2	350×(55+60)×55	2.00
Note: size can also be produced according to customer’s requirements

Aluminum-Zinc-Indium alloy sacrificial anode is suitable for the metal cathodic protection of ships, mechanical equipment, ballast water tank, tank inner wall, coastal facilities, submarine pipeline, wharf steel pile, offshore platform and others in seawater medium.

Chemical Composition

Alloy Type	Zn	In	Cd	Sn	Mg	Si	Ti	Impurity, ≤			Al
Alloy Type	Zn	In	Cd	Sn	Mg	Si	Ti	Si	Fe	Cu	Al
Al-Zn-In-Sd	2.5-4.5	0.018-0.050	0.005-0.020	–	–	–	–	0.10	0.15	0.01	margin
Al-Zn-In-Sn	2.2-5.2	0.020-0.045	–	0.018-0.035	–	–	–	0.10	0.15	0.01	margin
Al-Zn-In-Si	5.7-7.0	0.025-0.035	–	–	–	0.10-0.15	–	0.10	0.0-15	0.01	margin
Al-Zn-In-Sn-Mg	2.5-4.0	0.020-0.050	–	0.025-0.075	0.50-1.00	–	–	0.10	0.15	0.01	margin
Al-Zn-In-Mg-Ti	4.0-7.0	0.020-0.050	–	–	0.50-1.50	–	0.01-0.08	0.10	0.15	0.01	margin

Electrochemical Properities

Type/Index/Performance	Open Circuit Potential-V(SCE)	Working Potential-V(SCE)	Actual Capacitance(A.h/kg)	Current Efficiency%	Dissolution Status
Ordinary Aluminum Alloy Sacrificial Anode	1.10-1.18	1.05-1.12	≥2400	≥85	Corrosion products are easy to fall off, the surface dissolution is even
High Efficiency Aluminum Alloy Sacrificial Anode	1.10-1.18	1.05-1.15-2	≥2600	≥90
Highly Activated Aluminum Alloy Sacrificial Anode	1.45-1.50	1.40-1.45	≥2080	≥70

Zinc-Aluminum-Cadmium Sacrificial anodes are suitable for the cathodic protection of ships, mechanical equipment, offshore engineering and harbor facilities in fresh water or seawater medium and the pipelines and cables in low resistivity soils.

Chemical Composition (%)

Chemical Element	Al	Cd	Impurity Element				Zn
Chemical Element	Al	Cd	Fe	Cu	Pb	Si	Zn
Content	0.3~0.6	0.05~0.12	≤0.005	≤0.005	≤0.006	≤0.125	margin

Electrochemical Properties

Electrochemical Properties

Open Circuit Potential

Working Potential

Actual Capacitance

(Ah/kg)

Consumption Rate

(Ah/kg)

Current Efficiency

Dissolution Performance

In Sea Water

(1mA/cm2)

-1.09~-1.05

-1.05~-1.08

≥780

≤11.23

≥95

Surface dissolution is even, while the corrosion products are easy to fall off

In Soil

(0.03mA/cm2)

≤-1.05

≤-1.03

≥530

≤17.25

≥65

Electrochemical Properities

Type/Index/Performance	Open Circuit Potential-V(SCE)	Working Potential-V(SCE)	Actual Capacitance(A.h/kg)	Current Efficiency%	Dissolution Status
Ordinary Aluminum Alloy Sacrificial Anode	1.10-1.18	1.05-1.12	≥2400	≥85	Corrosion products are easy to fall off, the surface dissolution is even
High Efficiency Aluminum Alloy Sacrificial Anode	1.10-1.18	1.05-1.15-2	≥2600	≥90
Highly Activated Aluminum Alloy Sacrificial Anode	1.45-1.50	1.40-1.45	≥2080	≥70

High silicon cast iron anodes are widely used for cathodic protection of external electric current in offshore oil drilling platforms, underground pipelines, and the underground cable facilities.

Chemical Composition

Product Name	Chemical Element (%)					Impurity Content (%)
Product Name	Si	Cr	Mn	C	Fe	P	S
High Silicon Cast Iron	14~16	–	0.6~0.8	0.8~1.05	margin	≤0.25	≤0.1
Ferrochrome Silicon	14~16	4.0~4.5	0.6~0.8	0.8~1.05	margin	≤0.25	≤0.1

Electrochemical Performance

Product Name	Use Environment	Working Current Density (A/m2)	Consumption Rate (kg/A.a)
High Silicon Cast Iron	In seawater	50	0.3~1.0
Ferrochrome Silicon	In fresh water/soil	10	0.05~0.2

Specifications and Sizes

Number	Specification mm	Weight kg	Anode Cable
Number	Specification mm	Weight kg	Section mm2	Length mm
1	Φ50×1500	22	25	1000
2	Φ75×1200	40	25	1000
3	Φ75×1500	50	25	1000
4	Φ100×1500	90	25	1000

Electrochemical Properties

Performance /Type /Indicator	Open circuit potential -V(SCE)	Working potential -V(SCE)	Actual capacity A·h/kg	Current efficiency %	Dissolution condition
Ordinary aluminum alloy anode	1.10-1.18	1.05-1.12	≥2400	≥85	Corrosion products are easy to fall off and the surface dissolves evenly.
High efficiency aluminum alloy anode	1.10-1.18	1.05-1.12	≥2600	≥90
Highly activated aluminum alloy anode	1.45-1.50	1.40-1.45	≥2080	≥70