Precision Cold Drawn Seamless Steel Pipe Features And Application Range

Generally, the main feature of ordinary cold drawn seamless steel pipe is that it has no welded joint and can withstand large pressure. The product can be a very rough cast or cold-draw. Precision cold drawn seamless steel pipe is a product that has appeared in recent years, mainly with strict tolerances and roughness of inner and outer wall dimensions.

The characteristics of precision cold drawn seamless steel pipe: smaller outer diameter; high precision can be used for small batch production; cold drawn (rolled) seamless steel pipe with high precision and good surface quality; cold drawn seamless steel pipe cross-sectional area is more complicated; The performance of seam steel pipe is superior, the seamless steel pipe is relatively dense; the cold-drawn seamless steel pipe is relieved, and the inner and outer diameter conditions can be controlled within 10 wires according to customer requirements. It is used for mechanical structure, hydraulic equipment with high dimensional accuracy and surface. Cold-drawn or cold-rolled precision seamless steel pipe with good finish.

The use of precision seamless steel tubes to manufacture mechanical structures or hydraulic equipment can greatly reduce machining time, improve material utilization, and improve product quality. Precision cold drawn seamless steel pipe is a kind of high precision steel pipe material after cold drawing or cold rolling. Because the inner and outer walls of precision steel pipes have no oxide layer, high pressure and no leakage, high precision, high smoothness, no deformation of cold bending, flaring, flattening without cracks, etc., they are mainly used to produce pneumatic or hydraulic components, such as cylinders or Cylinder.

Cold drawn seamless steel tubes for hydraulic props are made of 20, 45, 27SiMn, etc. The high-precision cold drawn seamless steel pipe for hydraulic prop is based on high-quality carbon structural steel, and one or several alloying elements are appropriately added to improve the strength, toughness and hardenability of the cold drawn seamless steel pipe. After being made of such steel, it is usually subjected to heat treatment such as quenching and tempering, chemical heat treatment and surface hardening. Compared with high-quality carbon structural steel, it has good comprehensive mechanical properties and is rolled into round, square and flat seamless steel tubes, which are used as important structural parts in machinery or machinery.

The rust resistance of cold drawn seamless steel pipes for hydraulic props is worse than that of stainless steel. Cold drawn seamless steel tubes are more wear resistant and more machinable than stainless steel. Advantages of hydraulic components Compared with mechanical transmission and electric transmission, hydraulic transmission has the following advantages:1. Various components of hydraulic transmission can be arranged conveniently and flexibly according to needs.2. Light weight, small volume, small motion inertia and fast reaction speed.3, convenient control and control, can achieve a wide range of stepless speed regulation (speed range up to 2000:1).4, can automatically achieve overload protection.5. Generally, mineral oil is used as the working medium, and the relative moving surface can be self-lubricated and has a long service life;6, it is easy to achieve linear motion /7. It is easy to realize the automation of the machine. When the electro-hydraulic combined control is adopted, not only can a higher degree of automatic control process be realized, but also remote control can be realized.

Hydraulic disadvantages:1. The efficiency is low due to the resistance of the fluid flow and the large leakage. If not handled properly, the leak will not only contaminate the site, but it may also cause fire and explosion.2. Since the working performance is susceptible to temperature changes, it is not suitable to work at very high or low temperature conditions.3. The manufacturing precision of hydraulic fittings is relatively high, so the price is relatively expensive.4. Due to the leakage of liquid medium and the influence of compressibility, a strict transmission ratio cannot be obtained.5. It is not easy to find out the cause when the hydraulic transmission fails; the use and maintenance requirements have a higher technical level.

A worker from a steel pipe company, which is located in China.