Incorporated in 1986, Jinson
Engineering Pte Ltd began manufacturing zinc and aluminum anodes for the local Cathodic
Protection industry.
With rapidly increasing demand from the local and international markets, Jinson Marine (S)
Pte Ltd was initiated to provide the design, manufacturing and worldwide distribution of
sacrificial anodes and impressed current systems to a wide range of industrial corrosion
protection applications.
Together with state-of-the-art technology and stringent quality control in accordance with
the latest specifications, Jinson Marine (S) Pte Ltd guarantees the complete dependability
of the wide range of sacrificial anodes manufactured at their foundry. With an efficient
and reliable team of qualified engineers, Jinson Marine (S) Pte Ltd is committed to
provide thorough diagnosis and delivering quality and value for all of your cathodic
protection needs.
| Jinson Marine (S) Pte
Ltd Corrosion Protection Services include the following: |
"
Hull protection design work.
" Ballast tank protection design work.
" Impressed current cathodic protection.
" Anti-fouling protection system. |
Cathodic
Cathodic Protection Principles.
Instead of the conventional insulating coat or paint where
corrosion occurs instantly when the layer is damaged, cathodic protection provides an
active and deliberate electrochemical preservation system of corrosion protection that
s both effective and efficient.
Protection is carried out in two methods:
Sacrificial Anode Systems
An anode of greater negative potential is connected to the
protected structure, forming a galvanic cell in the submerge electrolyte (e.g. salt
water). The anode will then be sacrificed in place of the protected structure.
Zinc
Besides having an even corrosion pattern, zinc has reliable
electrical capacity, making it virtually unaffected in any current density conditions. It
also has a long working life.
Applications
" Ballast tanks, hulls area, barge, buoy, floating
dock, storage tank drilling rig etc.
" Condenser, heat exchange, sea water piping, seal lock, boring ( platform etc. (Zinc
is not suitable in high temperature environments ( of 50UC and above)
Aluminum
Due to its lightweight, smooth corrosion pattern, high
electrical capacity and stability, fewer aluminum anodes are required for a given
installation as compared with zinc.
This results in a substantially lower cost of per installed system.
Applications
" Hulls and tanks of ships (Except certain cargo tank)
" Fixed offshore structures
" Semi-submersible
" Pipelines
" Jetties etc.
Note:
As quantity requirement varies from application to
application, please consult our Cathodic Protection Specialist for further details.
Impressed
Current Systems
Impressed Current Systems were developed originally to protect the
underwater external hulls of large tankers and bulk carriers that could not be satisfied
adequately by Sacrificial Anode Systems.
In this system a
Transformer Rectifier (T.R) together with an auxiliary anode is used to create an electric
field at the metal surface. Electro-current flows from the anode through the electrolyte
and to the structure before finally returning to the negative terminal of the DC power
supply. This system together with the use of inert anodes will enable the
largest and most efficient coverage of protection without suffering significant wastage
themselves.
Benefits of Impressed Current Systems:
" Minimum time and cost savings for maintenance.
" Provides a uniform coverage of corrosion protection over a larger surface area.
" Automation allows hulls to be kept at optimal condition at all times.
" Minimal frictional resistance on the hull.
" Continuous and ease of monitoring hull potential.
Copyright:
Jinson Engineering Pte Ltd Web: www.jinson.com.sg
All rights
reserved as revised by Infomarine On-Line : 24/08/04
 |
|
