ClassNK Approves New Super-Efficient Fillet Welding Consumable

By Joseph R. Fonseca
Monday, May 26, 2014
Noboru Ueda, Chairman and President of ClassNK

 

Noboru Ueda, Chairman and President of ClassNK announced that it has granted type approval for the new MX-200F welding consumable, developed by Kobe Steel Co., Ltd. (KOBELCO) to greatly improve welding efficiency and coating quality in commercial vessels. 

Up until now, shipbuilders using conventional fillet welding consumables had to make two welding passes for the required weld leg lengths of around 8mm or above. As the IACS Common Structural Rules (CSR) require the use of 8mm leg lengths in some structural members, this has meant that the relevant welding time for oil tanker and bulk carrier newbuildings has virtually doubled. The IMO Performance Standard for Protective Coatings (PSPC), applicable to vessels over 500 gross tons and double-sided skin spaces in bulk carriers over 150m in length, also substantively requires welding beads to have a smooth profile in order to ensure the required paint film thickness, further increasing the difficulty of welding work. 
 
In order to help address these challenges and improve welding efficiency, Kobe Steel, Ltd., Shin Kurushima Dockyard Co., Ltd. and ClassNK began a joint R&D 
project to investigate the relationship between the profile of welding beads and paint film thickness. The research, which was carried out as part of ClassNK’s Joint R&D for Industry program, resulted in the development of KOBELCO’s new MX-200F fillet welding consumable. MX-200F not only allows one pass welding with the leg lengths of around 8mm, but also ensures welding beads have a smooth profile in line with PSPC requirements. The application of this welding consumable is expected to greatly reduce man-hours required for this kind of welding work compared to existing consumables. 
 
Upon completion of the development process, KOBELCO submitted the new welding consumable to ClassNK for approval for application in vessel construction. After a thorough testing and review process, ClassNK determined that MX-200F met the requirements of the ClassNK Rules and approved its use in ship construction. The development and approval of MX-200F represents the latest success of ClassNK’s Joint R&D for Industry program which has provided funding and research support for nearly 300 joint maritime R&D projects since its founding in 2009.
 
ClassNK
Maritime Reporter June 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

UN Throws the Book at North Korea Ship Operator

A U.N. Security Council committee on Monday blacklisted the operator of a North Korean ship, which was seized near the Panama Canal last year for smuggling Soviet-era arms,

Gondan to Build Spanish Patrol Boats

Gondan Shipyard has recently signed a contract with the Guardia Civil, Spain’s Civil Guard, for the building of two patrol boats. The aluminum and fiber (PRFV ) vessels will measure 20.

ABS to Class the World's First CNG Ship

ABS announced it has been chosen to class the world's first compressed natural gas (CNG) carrier ordered by Pelayaran Bahtera Adhiguna, a subsidiary of Indonesia's

Technology

FLNG Prelude: A New Dawn in the Age of Maritime & Energy

Longer than four football fields, as big as six Nimitz-class aircraft carriers and almost as tall as the Taipei 101 skyscraper, Royal Dutch Shell PLC is hoping that its record-setting,

Desulfurization of Exhaust Gases in Shipping

Are shipowners prepared to enter SECA zones?   Due to existing regulations on air exhaust emissions from the International Maritime Organization (IMO), and with

Intelligent grabbing technology SmartGrip by Liebherr

For the mobile harbour crane range Liebherr has developed an intelligent system which optimises grab filling rates in a self-learning manner. In a comprehensive study,

New Products

Raytheon Anschütz Debuts ShipGuard at SMM

In view of an increasing demand for security of merchant ships and maritime trade, Raytheon Anschütz, a German-based manufacturer of Integrated Bridge Systems,

Intelligent grabbing technology SmartGrip by Liebherr

For the mobile harbour crane range Liebherr has developed an intelligent system which optimises grab filling rates in a self-learning manner. In a comprehensive study,

Master Marine Delivers Z Drive Towboat

Master Marine, Inc. delivered its first 2,000 hp Z Drive inland river towboat last month. The towboat represents the first vessel (Entech Design) of this series by the yard.

Shipbuilding

HMS Prince of Wales Delivery Begins

A huge section of hull for HMS Prince of Wales, the second aircraft carrier being delivered to the Royal Navy, has today departed BAE Systems in Glasgow on a 600-mile

Gondan to Build Spanish Patrol Boats

Gondan Shipyard has recently signed a contract with the Guardia Civil, Spain’s Civil Guard, for the building of two patrol boats. The aluminum and fiber (PRFV ) vessels will measure 20.

ABS to Class the World's First CNG Ship

ABS announced it has been chosen to class the world's first compressed natural gas (CNG) carrier ordered by Pelayaran Bahtera Adhiguna, a subsidiary of Indonesia's

Ship Repair & Conversion

Three Share in Navy US$96.8-M Twin-Ship Modernization Contract

The U.S. Department of Defense informs that AMSEC LLC; CDI Marine Co. LLC; and Q.E.D. Systems Inc., (all located in Virginia Beach, Virginia) are each being awarded a cost-plus-fixed-fee/cost-only,

DoD Awards Ingalls 'USS Ronald Reagan' Contract Modification

U.S. Department of Defense (DoD) informs that Huntington Ingalls Inc., Newport News, Virginia, is being awarded a US$13,759,894 modification to previously awarded cost-plus-award-fee,

GDI Awards N-KOM US$110-M Contracts

Gulf Drilling International (GDI) Limited, a subsidiary of Gulf International Services (GIS), the largest oilfield service company in Qatar, has awarded two contracts

News

HMS Prince of Wales Delivery Begins

A huge section of hull for HMS Prince of Wales, the second aircraft carrier being delivered to the Royal Navy, has today departed BAE Systems in Glasgow on a 600-mile

Gondan to Build Spanish Patrol Boats

Gondan Shipyard has recently signed a contract with the Guardia Civil, Spain’s Civil Guard, for the building of two patrol boats. The aluminum and fiber (PRFV ) vessels will measure 20.

Marseilles Fos Reports Mixed First Half

First-half container traffic at leading French port Marseilles Fos totalled 583,287 teu – up 7% on the first six months last year - marked by a 10% increase at the deepsea Fos terminals.

Marine Science

Search for Flight MH370: Update

Australia's Joint Agency Coordination Centre (JACC) says that a bathymetric survey of the 60,000km2 search area is well underway, with two vessels, the Australian-contracted

ISS's Innovative Series of New Travel Apps for Cruise Industry

Inchcape Shipping Services (ISS) the world’s leading maritime services provider, has launched an innovative series of travel apps for the cruise industry in Greece,

Jacksonville Adds PORTS Real-time Data System

Officials from NOAA, the Jacksonville Marine Transportation Exchange, and the Jacksonville Port Authority officially dedicated a new information system today

Vessels

UN Throws the Book at North Korea Ship Operator

A U.N. Security Council committee on Monday blacklisted the operator of a North Korean ship, which was seized near the Panama Canal last year for smuggling Soviet-era arms,

HMS Prince of Wales Delivery Begins

A huge section of hull for HMS Prince of Wales, the second aircraft carrier being delivered to the Royal Navy, has today departed BAE Systems in Glasgow on a 600-mile

Gondan to Build Spanish Patrol Boats

Gondan Shipyard has recently signed a contract with the Guardia Civil, Spain’s Civil Guard, for the building of two patrol boats. The aluminum and fiber (PRFV ) vessels will measure 20.

 
 
Maritime Standards Naval Architecture Navigation Offshore Oil Pipelines Pod Propulsion Salvage Shipbuilding / Vessel Construction 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: 0.2634 sec (4 req/sec)