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 Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter June 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

Cathelco Supply BWT System for Cable Laying Vessel

Cathelco have supplied a ballast water treatment (BWT) system for the C.C. Pacifique, a steel barge which is being converted into a cable laying vessel for Coastal Carriers BV of the Netherlands.

Denmark Adopts Digital Ship Certification

As of June 24, 2016, ships flying the Danish flag are being digitally certified, making Denmark one of the first countries to put an end to the 100-year-old tradition

Prince Charles Places Final Section of UK Aircraft Carrier

The second of the largest warships ever built for the U.K. Royal Navy, the Queen Elizabeth Class carrier HMS Prince of Wales, was given the royal seal of approval when HRH The Prince of Wales,

Environmental

Chemical Tanker Runs Aground off Alaska

A 599-foot Norway flagged chemical tanker Champion Ebony ran aground near Nunivak Island, Alaska on June 24.   U.S. Coast Guard Sector Anchorage watchstanders

Coast Guard Investigates Sheen in Lake Ontario

The U.S. Coast Guard is responding to a report of a sheen in Lake Ontario near the Fitzpatrick Nuclear Power Plant in Scriba, New York, approximately 10 miles northeast of Oswego, New York, Sunday.

USCG Investigates Unknown sheen in Lake Ontario

The Coast Guard is responding to a report of a sheen in Lake Ontario near the Fitzpatrick Nuclear Power Plant in Scriba, New York, approximately 10 miles northeast of Oswego, New York, Sunday.

Fuels & Lubes

UAE Top Court: Physical Bunkers Suppliers Have No Right to Recourse against Owners/Charterers

The OW saga - UAE Federal Supreme Court decides that physical suppliers of bunkers have no right to recourse against Owners/Charterers. In the first decision

Conrad Shipyard Forms LNG Business Unit

Conrad Shipyard has formed a new business unit focused on LNG projects.   Conrad, builder of North America’s first LNG bunker barge scheduled for 2017 delivery,

Klüber Synthetic Gear Oils Offer Max Efficiency

Klüber Lubrication, manufacturer of specialty lubricants, provides high-performance gear oils that are based on high-grade raw materials and advanced additives,

Marine Power

Wärtsilä to Power Two Indian Dredgers

Wärtsilä has won an order for two new 8000m3 trailing suction hopper dredgers being built for the Adani group, India's largest private multi-port operator. The

Panama Canal Officially Opens $5.25Bln Expansion

A 984-foot Chinese container ship was greeted with fireworks and cheers from a crowd that had gathered, when it made an inaugural passage through the newly expanded Panama Canal on Sunday,

Maritime Needs More Women Power

United Nations  International Maritime Organization (IMO) Secretary- General Ki Tack Lim pushed for the increased involvement of women in the seafaring industry

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Naval Architecture Navigation Offshore Oil Pipelines Pod Propulsion Port Authority Shipbuilding / Vessel Construction
rss | archive | history | articles | privacy | 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: 0.0856 sec (12 req/sec)