Preparation and methods before welding embedded parts

During the construction of embedded parts, welding begins after the steel bars and steel plates are processed. However, the following three preparations need to be made before welding:
: It is necessary to check whether the types of steel bars and steel plates meet the design requirements and mandatory standards. It stipulates that for those who do not meet the requirements, the reasons must be identified and properly resolved, and blind selection cannot be made.
: The selection of welding rod and flux models needs to be based on their usage requirements and different properties. When pressure submerged arc welding is used, welding rods that are suitable for the strength of the main metal should be used. When manual welding is used, the welding rod should be used according to the Low strength body metal welding rod models.
: The weld type of embedded parts should be determined by the size of the anchor bar. For anchor bars with larger diameters, pressure submerged arc welding is preferred. When construction conditions are limited, arc welding can also be used to select appropriate welds. The form can ensure the welding quality of embedded parts.
br>After completing the above work, we started welding the embedded parts. First of all, we need to use submerged arc pressure welding. When welding embedded parts, we must pay close attention to the coordination of arc starting, arc maintenance, and top pressure. We must always pay attention to removing rust and debris from the clamps of the electric board. At the same time, we must promptly repair the electrodes. The shape of the notch. If there are quality problems such as steel undercuts, pores, slag inclusions, steel plate welding penetration, steel plate dents, etc., the causes must be identified and the welding defects must be removed in a timely manner. When manual welding is used, the height of the fillet weld must comply with the standard. When perforated plug welding is used, the hole in the steel plate should be made into a bell mouth. The diameter of the inner opening should be larger than the diameter of the steel bar. The inclination angle should be 1, and the end of the steel bar should extend into the left and right sides of the steel plate. Special attention should be paid to strictly controlling the amount of current during welding. Prevent steel bars from being burned.
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