Processing Technology and Application Fields of Round Anchor Blocks

Processing Technology of Round Anchor Blocks
Material Selection: Medium carbon alloy steel (such as 40Cr) or high carbon steel, strength ≥ 785 MPa.

Forming Process
Local Cold Extrusion: Necking and strengthening of the anchor tail section, hardness increased by 30-50%.
Forging/Stamping: A 10,000-ton press forges a porous structure in one go, with residual heat quenching saving 30% energy.
Precision Casting: Investment casting for large, special-shaped parts.

Precision Machining:

CNC milling of rounded corners (R≥0.8mm) to reduce stress;
Thread rolling (pitch error ±0.05mm).
Heat Treatment: 860-900℃ quenching + 450℃ tempering, surface nitriding (hardness ≥ 60 HRC).

Strengthening and Anti-corrosion: Shot peening + epoxy zinc coating/hot-dip galvanizing.

Application Fields of Round Anchor Blocks
Mining Engineering: Roadway roof support, pull-out resistance ≥ 100kN, preventing rock collapse.
Transportation Infrastructure: Tunnel surrounding rock reinforcement, slope anchoring, reducing settlement deformation.
Hydraulic Engineering: Dam anchoring, resisting water pressure seepage.
Urban Construction: Deep foundation pit support, curtain wall mechanical anchoring (dovetail groove weld-free design).
Ship Bridges: Anchor chain anti-fatigue components, cyclic load up to 10⁶ times.

Through local strengthening and composite processes, balance strength and toughness to meet the needs of immediate anchoring, pull-out resistance improvement (30-50%), and durability in complex environments.