Apr 29

Increase Metal Hardness with Heat Treatment Solutions

Here at NiTEC, our heat treatments services can be used for stress relieving and de-embrittlement as both pre-plate and post-plate treatments.  We often heat treat metals in order to increase their strength and wear resistance.

We also offer high temperature heat treatment solutions for sustained periods, which are used to diffuse the electroless nickel layer into the steel, which gives flexibility to the coating. This process does not affect the increased corrosion protection offered by this type of deposit.

Heat treatment refers to the controlled heating of metals in order to alter their properties without changing their shape.

 

From the heat treatment of specialist nickel alloy grades, to stress relieving of mild steel fabrications, the heat treatment services at NiTEC are monitored to ensure the highest quality.

Our heat treatment furnaces

The heat treatment facility at NiTEC has furnaces with ranges of 0 – 700°C.  Furnace 1 has dimensions of 1.5m x 1.5m x 2m high, and furnace 2 has dimensions of 1.7m x 1.7m x 2.2m high.

The staff at NiTEC use chart recording equipment to monitor the temperature changes of both the furnace and the work. This enables us to create heat treatment profiles which determine shotblasting solutions for many different requirements.

Our monitoring also ensures the material achieves the required temperature for the required time, in turn eliminating heat sinks on larger components or mixed loads. Small components can be loaded onto shelves to maximise the heat treatment capacity and minimise the cost of the treatment for our customers.

To find out more about the heat treatment facilities at NiTEC, click here to visit our website, call 0845 224 3571 or email: info@nitec-enp.co.uk

 

 

Feb 21

6 Things You Need to Know about Electroless Nickel Plating

What is electroless nickel?

Electroless nickel is an alloy of nickel and phosphorous.

How does electroless nickel plating work?

Electroless nickel plating occurs when an auto-catalytic reaction deposits a coating of nickel onto a substrate.

Unlike electroplating, it doesn’t require an electric current passing through the solution to form a deposit, hence the term ‘electroless’.

What are the advantages of an electroless nickel coating?

An electroless nickel coating provides great corrosion protection, even in the most extreme environments. It is very hard and has excellent wear resistance. Another fantastic feature of electroless nickel plating is that it can be used where close tolerances are required for components, meaning that there is no need for grinding after plating.

What surfaces can electroless nickel plate be applied to?

Electroless nickel can be used to plate most base materials including stainless steel, steel, copper and brass.

Why use electroless nickel plating over other plating methods?

Electroless nickel plating can be used to plate very complex shapes with a uniform coating. Unlike electrolplating, the deposit has a completely uniform thickness all over the component in question. The electroless nickel plates all parts of the components surface, regardless of holes, recesses, or sharp angles.

In which industries is electroless nickel plating used?

Electroless nickel plating is perfect for use in offshore applications. It has been used in a wide variety of other engineering disciplines including automotive, defence, aerospace and electronics.

If you have more questions about electroless nickel plating or would like to find out more about it’s suitability regarding your project, visit the Nitec website, or call and speak to a member of our staff on +44 (0) 845 224 3571

Feb 18

Metal Pickling at NiTEC

Among our other services including electroless nickel plating; we also offer the option of metal pickling.

Pickling can be used to effectively remove impurities from a metal surface such as stains, rust or scale. This type of metal surface treatment uses strong acids to remove impurities from the surface of the metal and is commonly used to clean or descale steel.

We have recently been involved with a project pickling stainless steel for the Aerospace group Meggitt. The components, which were to be used in a project in offshore Brazil, were pickled using hydrofluoric and nitric acid.

These types of acid are effective in removing discoloured scale from stainless steel.

 

Many processes that occur at a high temperature can leave a discolouring oxide residue or scale on the surface of the metal. Pickling the component removes the scale from the surface of the metal, leaving it looking much cleaner and brighter.

Acids are difficult to handle because they are so corrosive. Therefore, pickling is a process that requires the upmost care and safety. Luckily, we have the experience and expertise to carry out this process safely.

If you would like more information about Nitec’s experience working with substances such as hydrofluoric acid, please don’t hesitate to call us on 0845 224 3571 or email us at web@nitec-enp.co.uk. Alternatively, you can visit the Nitec website for more information.