Straight seam steel pipe is a common steel pipe product, and its production technology is also one of the important links in steel pipe production. This article will discuss the production technology of straight seam steel pipes, and analyze the aspects of raw material selection, production process, quality control and so on.

Raw material selection

The raw material of straight seam steel pipe is mainly steel plate, and its selection needs to consider the following aspects:

1. Material of steel plate: The material of straight seam steel pipe should be selected according to the use environment and requirements. For example, the pipeline used to transport oil and gas should choose stainless steel plate or galvanized steel plate with good corrosion resistance.

2. Thickness of steel plate: The thickness of straight seam steel pipe should be selected according to the requirements and specifications of use. Generally speaking, the greater the thickness, the higher the strength, but the cost will increase accordingly.

3. The width and length of the steel plate: The width and length of the steel plate should be selected according to the requirements of the production equipment to ensure production efficiency and quality.

Production Process

The production process of straight seam steel pipe mainly includes the following links:

1. Steel plate uncoiling: The steel plate is uncoiled from the rolled state and straightened by a hydraulic plate rolling machine.

2. Steel plate pretreatment: cleaning, dusting, cutting, and other treatments are carried out on the steel plate to ensure the flatness and cleanliness of the steel plate surface.

3. Welding: The steel plate is crimped, formed, welded, and other processes to form a straight seam steel pipe.

4. Cold rolling: The welded straight seam steel pipe is cold rolled through a cold rolling machine to ensure its dimensional accuracy and surface quality.

5. Cutting: Cut the cold-rolled straight seam steel pipe to meet the customer's requirements.

QC

The quality control of straight seam steel pipe is an important link in the production process, which mainly includes the following aspects:

1. Raw material inspection: chemical composition analysis, mechanical performance test and other inspections are carried out on the steel plate to ensure its quality meets the requirements.

2. Production process control: monitor and control all links in the production process to ensure that the dimensional accuracy and surface quality of the product meet the requirements.

3. Inspection and testing: Inspection and testing are carried out on the dimensions, surface quality and mechanical properties of the produced straight seam steel pipes to ensure that the product quality meets the requirements.

4. Quality tracking: Carry out quality tracking on the produced straight seam steel pipes to find and solve quality problems in time.

In short, the production technology of straight seam steel pipe is a complex process, which requires comprehensive consideration and management in terms of raw material selection, production technology, quality control, etc., to ensure product quality and production efficiency.

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