What is the drawing of the tube?

Drawing

The pipe process is a process of metal processing used to create a tube with a smaller diameter of dragging or drawing the tube by a larger diameter through the matrix. Five methods of tube drawing are commonly used. These methods are drawings with a solid plug, drawing of a floating plug, drawing attachment, drawing rod and sinking tubes. This gives the finished product added strength, because the metal hoses are not affected by thermal expansion during the process. In addition, this process produces hoses with more accurate measurements than other production methods. Using the Mandrel, which is locked in a fixed position near Die, the process of a firm drawing of the plug creates the best internal surface treatment of any tube drawing method. Drawing with a fixed plug is also the slowest method and Jeextrém limited in the amount of the possibility of reducing the diameter. The plug is forced into the neck of death by friction and pressure called axial force. The floating plug method is able to produce very thin pipe diameters. This tube drawing method is known for productionHubes with high quality inner and outer surface.

The drawing of the tied plug or the semi -rushing drawing of the mainland combines the function of a solid plug of the plug and the drawing of the floating plug. Although the blockbuster floats inside the tube material, it is tied to the anchor point. This tube drawing method, which is used in the process of production of direct tubes, provides a better surface on the inner surface of the tube.

The drawing of the rods, also known as the drawing of Mandrel, uses Mandrel to ensure the internal passage R drawn tubing remains constant. Mandrel is a solid rod if it is 100 feet (about 30 m), which is inserted into the tube material and pulled together with the hose through the matrix. The inner surface of the finished tubing occupies the properties of the outer bars, because the metal tubing is compressed around the rod as they pass the ground. The rod is then extracted from the finished tube in a process called winding.

Sinking

pipeKA is one of the primary methods of drawing a tube for products requiring fast and cost -effective settings without much concern about the inner surface treatment of the tube, such as a hose used to build a lawn. It differs from other forms of tube drawing, because no Mandrel is used inside the tube. Although it is the simplest form of tube drawing, the quality of the upper surface treatment compared to the other four methods.