The coil straightener is the core of every wire processing line: it compensates for any deformation of the strip during coil formation. The perfect coil straightener for the specific application is determined by the number of turns that are required, the thickness and the gauge of the material to be processed. The machine that can accomplish the desired results has an aluminum alloy shell that contains several copper and/or brass plated bars with hexagonal aligned holes. When the bar is inserted into the coil, it is pushed into the slots until the complete circle is formed. This then gives rise to a complete round coil that is then run through various cutting machines.
Among the two types of coil straighteners, the first is a variable speed one and the other is a rapid-air type. With the variable speed, a variable speed electric motor is used to regulate the amount of heating that goes into the coil stock. The electric current passes through a control circuit and this determines the temperature of the surface of the coil stock. The faster the speed, the hotter the surface of the coil stock will be. Thus, it is necessary that the heating rate should be adjusted accordingly.
Another important feature of the coil straightener that is important to note is its center distance. The center distance refers to the distance between the outer edges of the copper and brass or steel tracks. The use of a smaller center distance means that the heating coil is closer to the heating rails and less likely to emit hot air bubbles. Thus, the overall performance can be improved.
The next feature to note is the thickness of the coil straighteners. Coil-shaped pieces are formed because of the heat they generate. Thus, it is necessary that the thickness is well measured to avoid overheating problems. Thickness is usually measured in terms of gauge, but some manufacturers may also indicate the specific thickness that can be achieved by their products.
The most common material used in the manufacture of the coil straighteners is aluminum, cast iron, brass or steel. Each of these materials have their own advantages and disadvantages. For example, the aluminum straighteners are more vulnerable to extreme temperatures because the surface is not smooth. On the other hand, cast iron has a smooth and shiny surface that prevents oxidation.
In addition to the features to consider, it is also essential to take note of the materials and sizes. Some types are more appropriate for specific purposes. A good example is the servo straightener. The term “servo” refers to the wire, while “roller” refers to the metal surface on which the wires are placed. Remember that the size of your business will greatly affect what type of coil straightener will be best suited for you.