Quality Inspection Standard and Operation Process of Cold Drawn Carbon Seamless Steel Pipe

Quality inspection standard and operation process of cold drawn carbon seamless steel pipe are following below:
Production characteristics of the cold drawn tube is from the input to the finished product,which is usually processed through a number of cold deformation and produce hardening, and thus the entire production process by a number of preparatory processes and deformation processes, and has the characteristics of reciprocating cycle, and thus more processes , The production cycle is long, metal consumption, production efficiency is low, the general scale of production are not large.
  
Cold-rolled, cold-drawn or cold-rolled and cold-drawn combination of cold processing methods is to produce the entire package of equipment combinations, which is the hot-rolled pipe or welded pipe for deep processing unit.

According to the metal processing performance, pipe size, quality requirements and investment and efficiency to choose a different processing methods and the corresponding auxiliary processes. Cold-rolled cold drawn tube of the basic processes are:
(1) The supply of pipe material, the pipe used for hot-rolled or semi-finished product pipe, extrusion pipe and welded pipe;
(2) Pipe preparation, including inspection, bundling, pickling, washing, washing, and in, drying,coating lubricants;
(3) Cold (cold or cold drawing);
(4) Finished product finishing including heat treatment, straightening, sampling, cutting head and tail, inspection (manual inspection and a variety of testing), hydraulic test, oil, packaging, storage and so on. The contents of different products finishing different.