CrystalCoat Extends Cylinder Head Life

(Press Release)
Friday, February 03, 2012

CrystalCoat - good news for engines running on heavy fuel and gas.

Simplex-Turbulo, agents for Märkisches Werk (MWH), are now able to actively promote a very interesting new product which extends the life of cylinder head valves. High combustion temperatures in engines operating on HFO combined with fuel impurities are well known to limit the service life of cylinder head valves.  Even valves made of expensive nickel-based super-alloys suffer from hot-gas corrosion especially in highly loaded engines.

Since 2004 MWH has been pioneering the development of a solution to these problems. Higher-resistant materials are not easily available, so the approach has been to develop special coatings which protect the valve. Now there are several different grades for the new CrystalCoat, and CrystalCoat HT products. The different specifications allow MWH to tailor the coating to the individual application.  All the coatings however include the following characteristics:

• high resistance to hot corrosion
• excellent bonding strength between coating and substrate
• coefficient of thermal expansion matched to the substrate
• elastic and highly resistant to thermal shock
• low porosity
• impermeable and thermodynamically stable up to high temperatures

 

Hot-gas corrosion tests run at 700o C and 900o C have shown very significant reduction in corrosion rates when compared with Nimonic 80A and Nimonic 81.  Operations trials in a 320 mm bore power generation engine have confirmed these results.  Trials have so far only been carried out on Nimonic valves coated with CrystalCoat.  The next step will be to carry out trials on less expensive valve materials, but already MWH are predicting major savings for operators of engines with high temperatures such as power generating engines, and also on engines operating on gas.

Maritime Reporter October 2013 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

NAVTOR, AWT Agreement Marks Next Step in E-navigation

NAVTOR has signed an agreement with maritime weather routing specialist Applied Weather Technology (AWT) that will see the two companies integrating their services

BCG Upgrades Virtual GMDSS Simulator

Buffalo Computer Graphics (BCG) Inc. released an updated version of its Virtual Global Maritime Distress and Safety System (VGMDSS) Simulation software. BCG’s VGMDSS

Australia, US Order Anti-ship Missile Decoys

Design of the next generation of anti-ship missile decoys is set to commence following the signing of two contracts between the Australian Defense Force and BAE Systems Australia Pty Ltd.

Marine Propulsion

Livorsi Launches New Throttle Lineup

Livorsi Marine introduced the all new Platinum Series throttles, which they say are designed to be more ergonomically comfortable to the operator while being lighter

MAN Propulsion Packages for New Trawler Series

Orders for five fresh-fish trawlers feature two different ship designs and MAN 6L27/38 engines and aft-ship equipment Icelandic owners, HB Grandi, Vinnslustodin hf.

Volvo Penta's New Keel Cooling Option

Volvo Penta is offering factory-built keel-cooled engines for the entire line of marine commercial inboard and sterndrive D4 3.7-liter and D6 5.5-liter engines.

Environmental

NAVTOR, AWT Agreement Marks Next Step in E-navigation

NAVTOR has signed an agreement with maritime weather routing specialist Applied Weather Technology (AWT) that will see the two companies integrating their services

Emissions Scrubber Receives Class Approval

Langh Ship received final class approval from Germanischer Lloyd for its exhaust gas cleaning system on m/s Laura (pictured), a 1996-built a 6,500 DWT general cargo

‘Green’ Hybrid-powered Research Vessel Christened

The Maritime Aquarium at Norwalk christened a larger, “greener” new research vessel on Friday, September 26 in preparation for launching a new era in examining,

Fuels & Lubes

Going Big for Sustainability

Orkot Marine Bearings, developed and manufactured by Trelleborg Sealing Solutions, contribute to the build of the world’s largest and most efficient containerships,

Kounalakis Joins OW Bunker N. America

OW Bunker, a reseller and physical supplier of marine fuels, announced the appointment of Georgia Kounalakis to its physical supply operation in North America.

Louisiana to Get Natural Gas Liquefaction and Fueling Facility

Tenaska Bayou LNG expected to meet growing marine, transportation and oil and gas exploration and production demand on the Gulf Coast Tenaska NG Fuels, LLC and Waller Marine, Inc.

Marine Power

Livorsi Launches New Throttle Lineup

Livorsi Marine introduced the all new Platinum Series throttles, which they say are designed to be more ergonomically comfortable to the operator while being lighter

MAN Propulsion Packages for New Trawler Series

Orders for five fresh-fish trawlers feature two different ship designs and MAN 6L27/38 engines and aft-ship equipment Icelandic owners, HB Grandi, Vinnslustodin hf.

General Dynamics Bags $ 50 mi Submarine Contracts

General Dynamics Advanced Information Systems, a business unit of General Dynamics was awarded two contract modifications totaling $50 million to continue supporting

 
 
Navigation Offshore Oil Pipelines Pod Propulsion Salvage Ship Electronics Ship Repair Ship Simulators Sonar Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1897 sec (5 req/sec)