S355JR steel plate is a low-alloy high-strength steel commonly used in structural engineering, and its manufacturing process includes the following steps:
1. Raw material preparation: select low-alloy high-strength steel plates that meet the S355JR standard as raw materials.
2. Processing and cutting: Cut the S355JR steel plate according to the required size. Different methods such as flame cutting, plasma cutting or laser cutting can be used.
3. Forming processing: The cut S355JR steel plate is further formed by hot rolling, cold rolling, deposition welding and other methods to meet product requirements.
4. Heat treatment: The formed S355JR steel plate is heat treated in a high temperature environment to improve its mechanical properties and corrosion resistance.
5. Surface treatment: The surface of S355JR steel plate is treated by spraying, sandblasting or galvanizing to improve its durability and aesthetics.
6. Inspection quality: S355JR steel plates are tested for chemical composition, physical and mechanical properties, and non-destructive testing to ensure that the products meet the standards and specifications of relevant countries or regions.
7. Packing and shipping: packing according to customer needs, and shipping to the designated place.
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