Cooperheat has the manpower and equipment to cover all maintenance work and do projects including major shutdowns should the need arise. We also have sufficient back up resources to call on and can cover any Heat Treatment application needed by the client.

 

ANNEALING

This process involves implementing a pre-determined controlled heating and cooling cycle which induces softness. Additionally, the process removes unwanted gases, any moisture, relieves stress and enhances the mechanical properties in alloyed steels. This is generally performed at temperatures of around 700C.

 

NORMALISING

Normalizing is a technique used to provide uniformity in grain size and composition throughout an alloy. The term is often used for ferrous alloys that have been heated above the upper critical temperature and then cooled in open air. Normalizing gives harder and stronger steel, but with less ductility for the same composition, than full annealing.

 

PRE-HEATING

This is a very effective means of preventing weld metal or based metal cracking. It consists of the application of heat to the base metal prior to welding or cutting. It does not change the properties of the steel, but it is advisable under certain conditions to drive off hydrogen and moisture and helps to ensure even expansion to eliminate undesirable stresses. Concurrent heating during welding (also referred to as pre-heating) retards the cooling thus preventing the formulation of an under-bead crack.

 

STRESS RELIEVING

Stress relieving is a technique to remove or reduce the internal stress created in a metal. These stresses may be caused in several ways, ranging from cold working to non-uniform cooling. Stress relieving is usually accomplished by heating elements a metal below the lower critical temperature and then cooling uniformly.

 

METHOD

Cooperheat use the highest quality materials available in the construction of our flexible Ceramic Pad (FCP) heating elements. These materials make the heating elements highly durable, which extends the usable life of Cooperheat heating elements beyond that normally expected. This extended life, high durability and reliability combine to save you money by;

• Reducing reworks and lost time due to heating element failures

• Reducing your annual costs for replacing or repairing failed or damaged heating elements.

 

Cooperheat ceramic heating elements are constructed from high sintered alumina ceramic beads, 80/20 Nickel-Chrome core wire and Nickel cold tail wire. The construction allows the heating elements to be flexible and provides high heat transfer efficiency.