How to control the quality of weathering steel for rust?

If weathering steel is to be rusted, how to control better in terms of quality? As a weathering steel landscape manufacturer, let Xiaobian take everyone to understand!

1. Quality control of raw materials:

The development of all PE materials into the warehouse needs to carry out composite technical requirements to ensure the processing and production process of weathering steel rust, the stability of product service quality, and the service life of enterprise products.

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2, steel strip quality control:

The stiffness of weathering steel ring mainly depends on the high elastic modulus of the steel strip, but too high elastic modulus will affect the forming and bending of the steel strip, so it is necessary to control the quality of the steel strip.

3, bonding resin quality control:

The bonding resin mainly plays the role of bonding the steel strip and PE together at the melting temperature, and has a strong viscous buoyancy on the steel strip and PE material through the bonding resin, so that the "PE-bonding resin - steel strip - bonding resin -PE" 5-layer structure of weathering steel can be called a complete enterprise whole system.

4, semi-finished products - steel strip coating quality control:

The quality control of steel strip coating is mainly to control coating thickness, uniformity and peel strength. At 20 ° c, the peel strength is not less than 70n/cm, each batch of steel strip needs to be inspected according to the standard, and can be transferred to the extrusion winding molding process after passing.

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5, finished product quality control:

The quality control of finished products is a crucial part. At the production site, mainly according to the standard of weathering steel inner rust layer wall thickness, interlayer wall thickness, anti-corrosion layer thickness, pitch, weathering steel inner and outer rust layer welding status and appearance for inspection and control, check and control the smoothness of the inner wall, where does not meet the requirements of the standard products, judged as unqualified products, stacked in batches, products that meet the above indicators should be sampled in batches. The factory inspection items shall be inspected, and the qualified products shall not be stored in the warehouse.

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