The manufacturing of precision steel pipes involves a series of precision processes and small details to ensure the high quality and performance of pipelines. Here are some key manufacturing details:

Material selection: Select suitable steel to meet the requirements of specific applications. This includes selecting carbon steel, alloy steel, stainless steel, etc.

Pipe blank preparation: Precision steel pipe manufacturers cut and pre-treat the original pipe blank to ensure its size and quality are qualified.

Perforation: Use a piercing machine to pierce the tube blank to form the initial shape of a seamless tube. Temperature and speed control are required during perforation.

Cold drawing or cold rolling: The perforated tube blank is gradually reduced in outer diameter and wall thickness through a cold drawing or cold rolling machine to improve dimensional accuracy.

Annealing: Annealing of pipelines at high temperatures to eliminate residual stress, improve mechanical properties, and enhance pipeline toughness.

Pickling or pickling oil grinding: Conduct pickling treatment on pipelines to remove oxides, or perform pickling oil grinding to improve surface quality.

Cold drawing or cold drawing: Use a cold drawing machine or cold drawing machine to stretch the pipeline, further reducing size and improving surface quality.

Cutting and sizing: Cut the pipeline to the required length and perform sizing to ensure compliance with customer specifications.

Mechanical performance testing: Conduct mechanical performance tests on pipelines, including tensile, hardness, and impact tests, to ensure that their performance meets standards.

Outer diameter and inner diameter control: Control the tolerance of outer diameter and inner diameter to meet customer dimensional requirements.

Surface treatment: To treat the surface of pipelines to improve their anti-corrosion performance, such as galvanizing, spraying, or other anti-corrosion methods.

Marking and identification: Mark and identify pipelines to indicate important information such as materials, specifications, batch numbers, etc.

Testing and quality control: Precision steel pipe manufacturers conduct various inspections, including visual inspection, dimensional measurement, non-destructive testing, and chemical composition analysis, to ensure the quality of the pipeline.

Packaging and Protection: Properly package and protect pipelines to avoid damage during transportation and storage.

The control of these small details and manufacturing processes is key to ensuring the high quality and performance of precision steel pipes. Manufacturers need to closely monitor each step to ensure that the pipeline meets customer requirements and international standards.