Precautions for Perforation of Stainless Steel Seamless Pipes

Jane

Stainless steel seamless pipes play a vital role in modern industry. They are widely used in a variety of applications that require high strength, corrosion resistance and good sealing properties. In the manufacturing process of stainless steel seamless pipes, perforation is a key step, and its quality directly affects the subsequent processes and the performance of the final product. The following are several key points to note in the perforation process of stainless steel seamless pipes manufacturing:

1. Preparation before piercing

Material inspection: Before the perforation operation, the steel pipe material must be strictly inspected to ensure that the pipe has no defects such as cracks, folds and severe rust. If the above defects exist, they must be treated, otherwise these defects may be magnified during the perforation process, resulting in damage to the strength and performance of the steel pipe.

Drill Bit Selection: Drill bit selection for your punch is critical. Select the appropriate diamond beaded electric drill bit according to the wall thickness of the steel pipe and the required inner diameter specifications. For example, when the wall thickness of the steel pipe is less than 4mm, a small diameter drill bit should be selected; when the wall thickness is greater than 4mm, a large diameter drill bit should be used.

2. Precautions during the piercing process

Adjust the speed and feed rate‌: During the perforation process, it is necessary to observe the hole bottom at any time and adjust the speed and feed rate according to the actual situation. This can not only improve the perforation efficiency, but also effectively prevent the occurrence of wire breakage.

Avoid excessive impact‌: For seamless steel pipes, it is strictly forbidden to use impact tools such as electric hammers for perforation, as this may destroy the strength structure of the steel pipe and affect its service life.

‌Monitor the drilling process‌: Pay attention when drilling. If any abnormality is found (such as excessive heating, vibration, etc.), stop the machine immediately for inspection to prevent damage to the equipment and steel pipes.

3. Treatment after perforation

Check the perforation quality‌: After the perforation is completed, the steel pipe should be carefully inspected to ensure that the perforated part is smooth, free of cracks and burrs.

‌Record data‌: Record various parameters during the perforation process, such as speed, feed amount, time, etc., to provide reference for subsequent processes.

4. Industry standards and specifications

In the manufacturing process of stainless steel seamless pipes, it is also necessary to follow national and industry standards and specifications. For example, the national standard GB/T14976-2012 specifies in detail the size, shape, weight, allowable deviation and technical requirements of stainless steel seamless pipes. These standards ensure that the manufacturing quality and performance of steel pipes meet market demand.

5. Safety and environmental protection

During the perforation process, attention should also be paid to safety and environmental protection issues. Operators should wear protective equipment to prevent injuries caused by flying sparks and debris. At the same time, effective measures should be taken to reduce noise and dust pollution to protect the environment and the health of operators.

Read more: How to Control the Quality of Stainless Steel Seamless Pipes during Production?