What is the difference between cold drawn tubes and precision tubes

Cold drawing is a cold drawing process for precision tube rolling.

Wuxi Duorunde steel pipe **** (I will answer); There are some differences between cold-drawn tubes and precision tubes in terms of manufacturing process, precision, use, and performance. Here's how the two differ:

1.Different manufacturing processes Cold drawn pipes are steel pipes made by cold drawing process, usually the raw steel pipe is stretched through a stretching machine to deform the steel pipe and reduce the diameter, and then it is cooled and sized. Precision tubes, on the other hand, are high-precision seamless steel tubes made by cold-rolled or cold-drawn processes, and their precision is usually higher than that of cold-drawn tubes.

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2.Different Accuracy The accuracy of cold drawn tubes is relatively low, its dimensional deviation is large, and the surface finish is also low. The precision of the precision tube is very high, and the deviation of its inner and outer diameter dimensions can be controlled within a small range, even up to the micron level, and the surface finish is also very high.

3.Different uses Cold drawn pipes are mainly used in construction, machinery manufacturing, automobile manufacturing and other fields, such as water pipes and ventilation ducts in buildings, as well as shafts and pins in machinery manufacturing. The precision tube is mainly used in precision mechanical parts, engineering structures, conventional ** and other fields, such as gun barrels, artillery shells, etc.

4.Different performance There are also differences in the performance of cold drawn tubes and precision tubes. Due to the low precision and surface finish of cold-drawn tubes, their mechanical properties and corrosion resistance are relatively poor.

Answer; What is the difference between cold-drawn precision steel pipes and cold-rolled precision pipes and cold-drawn precision tubes

1. The main feature of seamless steel pipe is that there is no welded seam and can withstand large pressure. The product can be very rough cast or cold picked. 2. Precision steel pipe is a product that has appeared in recent years, mainly because the inner hole and outer wall size have strict tolerances and roughness.

Cold-drawn precision pipe Cold-drawn precision and dense steel pipeFeatures: (1) Smaller outer diameter. (2) The accuracy of the shield is high, and it can be produced in small batches.

3) The finished product is cold drawn with high precision and excellent surface. (4) The transverse area of the steel pipe is more complex. (5) The performance of the steel pipe is superior, and the metal is relatively dense.

Hot rolledPrecision steel pipesAfter the difference.

Hot rolledPrecision steel pipesWith continuous casting round tube slab slab or primary rolling slab as raw material, heated by a step-by-step heating furnace, high-pressure water descaling into the roughing mill, roughing material through cutting head, tail, and then into the finishing mill, the implementation of computer-controlled rolling, after the final rolling is through laminar flow cooling and coiler coiling, become a straight roll. The head and tail of straight hair curls are often tongue-shaped and fishtail-shaped, with poor thickness and width accuracy, and defects such as wave-shaped, folded, and tower-shaped edges are often present at the edges. Its coil weight is heavier, and the inner diameter of the steel coil is 760mm.

After the straight hair curl is processed by the finishing line such as cutting the head, cutting the tail, cutting the edge and straightening and leveling for multiple passes, it is then cut or recoiled, that is, it becomes: hot-rolled steel plate, flat hot-rolled steel coil, longitudinal cutting belt and other products. If the hot-rolled finishing coil is pickled to remove the oxide scale and lack of oil, it becomes a hot-rolled pickled coil.

Cold drawn. Precision steel pipes

It is a kind of high-precision after cold drawing or hot rolling.

Steel tube. Material. Due to the precision steel pipe inner and outer walls are not.

Oxide layer. Withstand.

High pressure. No leakage cover, high precision, high finish, cold bending without deformation, flaring. Flattened without cracks, etc., so it is mainly used to produce pneumatic or hydraulic.

components of the product, such as: Cylinder. Or.

Cylinders. Yes, you can be blind. Seamless tubes.

Outside diameter. Smaller.

Precision. High can be made in small batches.

3.The cold drawn (rolled) finished product has high precision and excellent surface.

Socks empty 4The transverse area of the steel pipe is more complex.

5.The performance of steel pipes is superior to that of metal.

Relatively dense.

Precision cold-drawn seamless pipe, in fact, there is no reasonable statement, everyone often says precision, but just hope that the precision of the tube is a little higher, and the tolerance range is controlled in place.

For cold drawing, in the manufacturing process of seamless pipes, there are two main processes, cold drawing and fine binding, cold drawing is also called cold drawing, precision cold drawing seamless pipe can be understood as wanting to use the cold drawing process for pipes with high precision.

However, for the cold drawing and fine binding process, the seamless pipe with a certain precision can be manufactured, each has its own advantages and disadvantages, and I hope you can choose different processes according to your own product needs.

Cold-drawn precision steel pipe is a kind of high-precision steel pipe material after cold drawing or hot rolling. Because the inner and outer walls of precision steel pipes have no oxide layer, no leakage under high pressure, high precision, high finish, no deformation in cold bending, flaring, flattening without cracks, etc., they are mainly used to produce products with pneumatic or hydraulic components, such as cylinders or cylinders, which can be seamless pipes.

1.Smaller outer diameter.

2.High precision, can be made in small batches.

3.The cold drawn (rolled) finished product has high precision and excellent surface.

4.The transverse area of the steel pipe is more complex.

5.The performance of the steel pipe is superior, and the metal is relatively dense.