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VOL XXVI, NO 44

Belzona Repairs Water Jet Flange Area

 
 

Отрасли промышленности:

Marine (MRNE)

 
 

Применения:

Valves, Pipes and Fittings (VPF)

 
 

Местоположение клиента:

Naval shipyard, Vaxholm, Sweden

 
 

Дата применения:

December 2011

 
 

Ситуация применения:

Rolls Royce water jet propulsion unit on combat boat built 2002. Total time in water almost 6 years.

 
 

Проблема:

The water jet tunnel was suffering from cavitation and corrosion the flange holding the impeller housing in place. The most severe damages were found on the flange face and extended 20 cm inwards. Additionally the flange face was found to be distorted.

 
 

Продукты:

Belzona® 1111 (Super Metal)

Belzona® 1341 (Super metalglide)

 

Подложка:

Aluminium

 
 

Метод применения:

Application was carried out in accordance with Belzona Know-How system Leaflets VPF-1 & 2. Flange face and cavitation erosion was rebuilt with Belzona® 1111. critical clearances were machined before applying Belzona® 1341 for overall erosion corrosion protection.

 
 

Факты Belzona (Экономия средств? Альтернативы? Почему Belzona?, и т.д.):

This ship yard has previously used the same method for repairs on water jet propulsion units with great success. Belzona avoids hot work that could create further distortion and provides excellent corrosion and cavitation protection in water jet propulsion systems.

 
 

Описание фотографий

  1. The damaged water jet unit
  2. A close-up of the damage
  3. Machining down the flange surface after rebuilding with Belzona® 1111 
  4. completed application after coating with Belzona® 1341
 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 Case study pic four

 

 
 
Дополнительная информация о продуктах Belzona на сайте: www.belzona.ru