Monitoring pole production standard introduction

The monitoring rod is manufactured from high-quality low-carbon steel grade Q235A, sourced from Shanghai Baosteel. This material ensures superior strength and durability. The silicon content in the steel is strictly controlled to not exceed 0.04%, ensuring excellent formability and weldability. After being bent using a large bending machine in a single operation, the straightness error remains within 0.05%, meeting stringent quality standards. The rod is designed to withstand wind speeds of up to 36.9 meters per second, equivalent to 11 on the Beaufort scale, and can endure seismic activity of intensity 8 on the Richter scale. The total height of the pole is 6 meters, with an upper diameter of 90 mm and a lower diameter of 100 mm. The wall thickness is 4 mm, providing structural integrity while maintaining a lightweight design. A flange is installed at the base of the pole, with a mounting distance of 200 mm. The pole is secured to the foundation using anchor bolts. The ground anchor specifications are either provided by the user or configured according to standard industry practices by the manufacturer. The welding process for the monitoring rod utilizes automatic submerged arc welding, which guarantees strong, consistent, and defect-free joints. The surface of the welds is smooth, with no visible defects such as porosity, weld spatter, undercutting, or incomplete fusion. Each weld undergoes ultrasonic testing to meet the requirements of GB/T 11345 Level II, ensuring long-term reliability and safety. To enhance corrosion resistance, the camera pole undergoes internal and external hot-dip galvanization. The process includes pre-treatment steps such as pickling, followed by hot-dip galvanizing, water washing, phosphating, and passivation. The resulting zinc coating is smooth, uniform, and free from defects like wrinkles, drips, zinc nodules, peeling, spots, or uneven coloration. The galvanized layer has a minimum thickness of 86 micrometers, complying with national standards GB/T 13912-92. The adhesion of the zinc coating meets the requirements of GB 2694-88, ensuring a service life of over 30 years under normal environmental conditions. After galvanization, the pole is coated with an electrostatically sprayed paint finish in a variety of available colors. Before painting, the surface is thoroughly cleaned to enhance adhesion. The spraying process is carefully controlled, with precise regulation of curing time and temperature to ensure a uniform, smooth, and pore-free plastic layer. The thickness of the painted layer is 100 micrometers, and the adhesion meets the standards outlined in GB 9286-88. The finished surface is smooth, with a hardness of 2H, making it resistant to scratches and wear.

Shield Reinforcement Ring

The simplest shape of the reinforcing ring is a rectangular column attached to the surface of the product, but in order to meet some production or structural considerations, the shape and size of the reinforcing ribs need to be changed as shown in the following figure. The position of the bottom of the product must be rounded to eliminate excessive stress concentration. The rounded corner design also gives the runner a gradual shape to fill the cavity with curvature. Problems such as water trapping will also lengthen the production cycle and increase production costs.

Shield Reinforcement Ring,Tunnel Reinforcement Ring,Shield Tunnel Ring,Concrete Surface Of Ring

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