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Trachoma in welded pipe and galvanized pipe
Date:2019-08-31      View(s):1187      Tag:Trachoma in welded pipe and galvanized pipe
Welded pipes and galvanized pipes often undertake major tasks such as structural support, fire fighting and water supply. These tasks are related to the safety of people's lives and property and must not be lost. Problems such as trachoma and leak welding may lead to changes in stress structure of pipelines, weakening of pressure bearing capacity, bending and fracture of structural pipelines, leakage of water supply pipelines, bursting of pipelines and other accidents. So why are there problems with trachoma and leakage welding in pipeline products? The main reasons are as follows:


Deformation of production pipe strip due to collision
Welded pipe is also very good, galvanized pipe is also rolled and welded through strip steel. If the strip is in the process of transportation, the edge will be collided, bending deformation, and easy to occur trachoma and missing welding during welding. Phenomenon. In order to solve this problem, besides avoiding the collision in the process of belt conveying, attention should also be paid to the protection of the strip, that is, marked the obvious deformation position in front of the strip conveyor and the marked position after the strip conveyor. Tube production is completed. If there is a quality problem, please dispose of the waste immediately.


The welder jumped.
Welder fire jump is mainly caused by the negligence of the staff, and it does not happen very often. However, if the welder flashes, it will inevitably lead to welding leakage.


3. Production Line Replacement Dimensions and Specifications of Produced Products
When the pipeline production line is replaced by the dimension specifications of the production products, the first few pipeline products produced are prone to trachoma and weld leakage problems because the size specifications of the machine are not adapted at the beginning. Manufacturers with better quality control management will directly discard the pipes that have just been started when changing product sizes and specifications. In order to increase production and reduce production costs, many manufacturers sell the pipeline as a qualified product. Although the prices are cheap, the problems caused by them are infinite.