BACKSeamless steel pipe
Plated seamless tube
Description:The main production of plating cylinder pipe, cylinder barrel, honing pipe, rolling steel pipe (quilting pipe, air grinding pipe, derivative grinding pipe, model pipe, grinding pipe), cylinder barrel, cylinder pipe, cylinder pipe, cylinder body and assembly. Cylinder, piston rod (chrome plated rod, chrome plated piston rod, precision slender shaft) and other products. The main materials are: 10 #, 20#, 35 #, 45#, 16Mn, 27SiMn, GCr15, 20Cr, 40Cr, 35CrMo, 42CrMo, etc. Widely used in hydraulic cylinder, cylinder, hydraulic machinery, engineering machinery, petroleum machinery, agricultural machinery, filling machinery, mining machinery and other fields.
parameters
Plated cylinder pipe is a kind of high-precision steel pipe material after special process, that is, after cold drawing treatment. It has the advantages of no oxidation layer on the inner and outer walls of the pipe, no leakage under high pressure, high precision, high finish, no deformation during cold bending and flaring, and no cracks, etc. The straightening of high precision cold drawn pipe is mainly divided into hot straightening and cold straightening, in which temperature control is the key. If the straightening temperature is too high, the high-precision cold-drawn tube will bend due to uneven cooling. If the temperature value is too low, it will affect the straightening resistance and straightening difficulty of cold drawn pipe. In addition, in order to achieve the straightening effect, one or more straightening can be performed for different pipeline conditions. The main straightening methods of high precision cold drawn pipe include pressure straightening, roll straightening, stretch straightening and stretch bending straightening. Different materials use different straightening methods. Although there are differences in principle, the later treatment effect is relatively good.
introduction
Product characteristics (e.g. performance, accuracy, etc.)
4.1 Dimensional accuracy: cylinder pipe wall thickness deviation, wall thickness uniformity, outside diameter deviation, ellipticity small.
4.2 Surface quality: Through the top, mandrel, furnace temperature control tube body and external surface finish is good, can better control the tube body pockiness, oxide skin and other macro defects, better meet the customer scraping and rolling cylinder surface quality requirements.
4.3 Mechanical properties: Through the hot rolling process or heat treatment process, the mechanical properties of each grade meet the requirements of BS EN 10297-1:2003 and GB/T8163-2008 standards for mechanical properties of materials.
4.4 Others: According to customer demand, 0.020%~0.045% sulfur element can be added to E355 and E470 material to improve the cutting performance of cylinder pipe and reduce customer tool consumption. For large diameter plunger cylinder in the market, according to customer demand, we can provide end thickened cylinder bobbin blank.
