Thursday, 28 March 2013

H01N2-D cables and their uses

A H01N2-D cable is harmonized, flexible; rubber jacketed welding cable that is designed for the transmission of high currents. They are especially suited to transferring currents from electric welding machines to the tools that operate on a line and also with spot welding machine.

These types of cables are also highly suited to assembly lines and conveyor systems in the ship building, automobile and tool making industries. These cables are known to retain their flexibility even under the influence of ozone, light, oxygen, protective gases and oils. The robust jacket and construction aids in the resistance to both hot and cold temperate – as well as flames. They are considered suitable for outdoor use in dry and damp conditions. Common European designation is NSKFFOU.

The H01N2-D is works even in rough conditions, perfect for assembly lines and conveyor systems, in machine tool and motor car manufacturing and ship building. Some of the main properties of this type of cable include:

  • Application standard for H01N2-D ; HD 516/VDE 0298-300
  • Transmits high currents from the electric welding device to the welding tool
  • Use the welding cable only under consideration of HD 516/VDE 0298-300
  • Can be used in dry and damp conditions

Lapp UK can supply you with the appropriate products for your applications, including a huge range of cables that can be delivered to you anywhere in the world.

Wednesday, 13 March 2013

What are Pipe Expansion Joints?

Pipe expansions joints – also known as expansion compensators or bellows are used in pipe work applications where the thermal expansion, movement and vibration could cause problems. Pipe expansion joints are made up from one or more convolutions which are designed to move or expand to relieve the stress from the solid pipe.

 What you will find, is that the convolutions are designed to move or expand to relieve the stress from the solid pipe. The level of movement or expansion within the application will determine the number and shape of convolutions that are required for the pipe expansion joint to function. Usually manufactured out of materials like stainless steel, PTFE and rubber, a pipe expansion joint can be made to suit almost any application.

Also available for applications are expansion joints manufactured from material – commonly known as sewn bellows, meaning they are generally used for covers for moving parts such as hydraulic cylinder rods, keeping them safe from dust and other contaminants.

The most common cause of mechanical damage to pipe expansion joints are arc strikes or tools and materials dropped from above. The materials are generally quite thin and can dent relatively easily, which leads to placement of protective covers, which do sometimes help, but can obstruct access to bolts and joints.

Certain damages to pipe expansion joints can be harmless and not affect an application at all. However, other damages can reduce the cycle life, create a fatigued operation or lead to a complete system failure.

Ensuring that your pipe expansion joints are in fully working order is extremely important, as they can be a vital part of your applications process. For replacements, inspection and advice, Buckley Industrial are easily contactable and offer out there services to those who need  high quality and comprehensive service.