The Way Of Pre-Stressed Anchors To Produce High-Quality Products
Release time:
2021-06-07
The manufacturing process of prestressed anchors directly determines the quality of the product. The prestressed anchorage is made of high-carbon steel wire rod, and the surface will be specially t...
The manufacturing process of prestressed anchors directly determines the quality of the product. The prestressed anchorage is made of high-carbon steel wire rod, and the surface will be specially treated. After the treatment is completed, the prestressed anchorage is first drawn by the cold drawing process, and then the steel wire is prestressed according to the requirements of different models. The structure of the anchor is screwed together and then combined into strands, and the pre-stressed anchor takes shape. After stabilization, the finished pre-stressed anchor can be manufactured. In order to extend the service time of many steel strands, a coating is usually added to the surface, and the common ones are galvanized and epoxy resin. The surface of the prestressed anchor is notched to increase the grip strength with the concrete, not to cause quality problems.
Pre-stressed anchorage preparation work before construction, drawing review and technical confession, before the pre-stressed anchorage construction, organize technical personnel at all levels to review the drawings and release large-scale drawings for key parts, and promptly negotiate with the designer to resolve the problems. The material used for prestressed anchors is strictly drawn. After the prestressed anchorage enters the site, it is necessary to check the label, certificate of conformity of the product, the physical performance certificate issued by the prestressed anchorage manufacturer or the product quality inspection report. Carry out visual inspection of the prestressed anchorage. There must be no joints or dead bends, full and uniform grease, round and smooth sheath, and proper tightness. If the surface of the prestressed anchor is damaged, it must be repaired with plastic tape in time, and the visual inspection must be carried out on a plate by plate basis. At the same time, the prestressed anchorage and cement shall be sampled and tested after entering the site. The pre-stressed anchor tension equipment and the pressure gauge should be tested by the metrology department to be relatively qualified, and the corresponding tension comparison table should be provided.
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