What is the weld leg height for the strength welding of the heat exchange tubes

The weld leg height for the strength welding of heat exchange tubes should meet the design requirements, generally being more than 6mm.

I. Process and Requirements of Welding

Strength welding of heat exchange tubes is a common welding process, mainly used for connecting multiple tubes or connecting tubes to containers. During the welding process, the following requirements should be noted:

1. The welding process should comply with the design requirements and undergo necessary tests and inspections.

2. The welding should meet the strength requirements of the weld seam and the base material.

3. The welding should comply with the requirements of relevant standards, such as ASME standards and GB standards.

4. The welding should be carried out strictly in accordance with the welding process specifications to avoid causing quality problems.

II. Requirements for Weld Leg Height

During the welding of heat exchangers, the weld leg height must be controlled to ensure welding quality. The weld leg height refers to the protruding height formed by the welding in the weld seam, and it should generally meet the following requirements:

1. The weld leg height should comply with the design requirements and undergo necessary tests and inspections.

2. The weld leg height should be uniform, and it should be kept as uniform as possible without affecting the quality.

3. The weld leg height should meet the design requirements, generally requiring more than 6mm.

4. The weld seam cross-section should be smooth, without cracks, pores, slag inclusions, etc.

III. Precautions for Welding

When conducting strength welding of heat exchange tubes, the following aspects should be noted:

1. Before welding, all required materials, electrodes, etc. should be prepared, and necessary cleaning work should be carried out.

2. When using welding equipment, the equipment manual should be carefully read and operated according to the requirements.

3. Before selecting the welding process, tests should be conducted to ensure it meets the requirements.

4. During the welding process, the process specifications should be strictly followed, and safety issues should be noted.

5. After welding, necessary quality inspections should be carried out to evaluate the welding quality.

[Conclusion]

This article provides detailed knowledge and requirements related to strength welding of heat exchange tubes, especially the control of weld leg height and precautions. The aim is to provide applicable references and guidelines for readers. Welding is a very important processing technology, and it plays a crucial role in the quality and service life of products. Therefore, when conducting welding work, it is necessary to strictly follow the specification requirements and strengthen quality inspection and control to ensure welding quality.