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Roller plates are used to bend light steel products into different shapes, including conical and rounded shapes. Roll plate machines heat the metal to make it pliable, and a popular type uses three rollers. Another type uses four rollers and is much larger. Metal thickness, width, and tensile strength affect the ability to form tubular pieces of metal.
A roller plate is a device on a machine that is used when working with light steel products. The plate is used to bend flexible pieces of steel into different shapes, including conical and rounded shapes. The types of metal or steel used with roller plates include carbon pot steels, stainless steels, and low alloy steels.
Roll plate machines heat the metal to the ideal temperature to make it pliable. This allows the operator to bend and shape the metal piece. It is able to do this by using the rolls all in one direction without having to feed the metal back through the machine to complete the operation.
A popular type of roller plate machine uses three rollers. On these machines, the upper roller can move in both vertical and horizontal directions, which allows the upper platen to remain in an asymmetrical position with respect to the two lower roller plates. The motor of the three roller machine powers the bottom two plates as a piece of metal is fed through the machine. This makes the three roll plate machine easy to use and a popular choice when you need to bend metal or shape metal into certain rounded or cylindrical shapes.
Unless the operator of the three-roll plate machine is extremely skilled and experienced, it can be difficult to form tubular pieces of metal on this type of machine that are more than three times the diameter of the top plate. Commonly, the smallest tube that can be formed using a three roll machine is a tube measuring 1.5 times the diameter of the first roll plate. Even for some experienced operators, other conditions will determine which tube they will be able to produce. These factors include the thickness of the metal, the width of the metal, and the tensile strength or breaking point of the metal.
Another type of roller machine is a machine that uses four rollers instead of three. It differs in many ways from the three plate machines. One of these differences is in size. The three platen machine is much smaller than the four platen folder.
The four-roll machine consists of a number of parts. The parts include the upper roller, lower roller, side roller, main drive, tilting device, left and right support structures, and seat. The metal is fed into the machine along the three lower rolls with the upper roll plate lying horizontally against the plate.
As metal is fed into the machine, the top plate clamps the metal piece tightly between the bottom plates. The upper platen is then powered by hydraulics as it moves slowly along the lower roller plates. As the top plate moves over the bottom plates, the bottom roll plates move upright, causing the metal to bend.
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