Copper-Zinc is good for flexible mesh containment systems.
Copper-Nickel is good for rigid (e.g. welded) mesh.
Copper-Silicon is good where rigid mesh is needed, or where panels can have flexible connections.
Copper is an excellent material to use for rotors due to its high conductivity. Copper’s conductivity is rated at 57 Ms/m, which is significantly higher than that of aluminium (37 Ms/m). This makes copper the material of choice for a number of induction motor applications worldwide.
Bronze has been used for centuries to create statues, and is still the first choice for modern, striking works of art. The most widely-used alloys for such objects are leaded gunmetals, such as CC492K and CC491K.
Pure copper is too soft for overhead wires and the copper alloys used are specified in BS EN 50149:2012. These are alloys of copper with respectively small amounts of silver, magnesium, tin or cadmium.
Copper alloys can be used for current cage designs as well as other future, more cost-effective designs and applications. Today, it can replace round HDPE cages, and square steel cages with and without platforms. Trials using the Aquapod 3600 and the OCAT cages with copper mesh are currently being conducted, and the Ocean Spar 3000 submersible cage is in prototype discussions.
Generally, the values of the International Annealed Copper Standard (IACS) are lower than those of wrought copper due to the presence of a small percentage of gas porosity and a small percentage of impurities such as iron. A value of 93% IACS is guaranteed but, with a very low porosity and very pure copper scrap (such as that from busbars), a value up to 102% IACS may be obtained.
Copper flame-free jointing can be done by press fittings and push-fit fittings. The benefits of these types of fittings are:
- Work can be undertaken with occupants in the building
- No flux fumes
- No additional ventilation required
- No need for hot work permits/certificates
- Quick to install.
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Yes, any flux left inside the pipework must be removed after jointing is complete.
Energy efficiency: reducing the diameter of copper tubes in coils provides an economical path to energy efficiency for air conditioning and refrigeration (ACR) products.
Less material: tube-diameter reduction results in more effective heat transfer and consequently smaller, lighter coils. Less tube and fin material could provide equivalent heat transfer or more heat transfer; or the same material could provide much more heat transfer.
Less refrigerant: a dramatic reduction in refrigerant volume is a further benefit of copper tubes.
Durability: coils made of copper tubes and aluminium fins (CTAF) or copper tubes and copper fins (CTCF) are durable and dependable. They set the industry standard for corrosion resistance and long, reliable service life.
Familiarity: tube suppliers, OEMs, mechanical systems engineers and HVAC contractors are all highly familiar with CTAF technology. Up and down the value chain, the materials and processes are well understood.