Shot Blasting Steel Bar

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 7 year year

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Shot blasting of round steel bars involves using high-speed shot to impact the surface, achieving three main effects: rust/scale removal, surface roughening, and stress strengthening. This process replaces traditional acid pickling and is more environmentally friendly and efficient. I. Core Process and Parameters - Principle: High-speed shot (cast steel shot/cut wire shot/ceramic shot) impacts the round steel bar at 60-80 m/s, cleaning the surface and forming a compressive stress layer, thus improving fatigue life. - Key Parameters: Shot size 0.2-1.2 mm (coarse particles for heavy rust removal, fine particles for precision parts); coverage ≥98%, critical parts can achieve 200% coverage; surface cleanliness reaches Sa2.5-Sa3 level, roughness Ra3.2-12.5 μm. - Equipment: Commonly used is a through-type shot blasting machine, equipped with multiple shot blasters + roller conveyor + shot recovery + dust removal system, suitable for continuous batch production. II. Core Advantages - Replaces acid pickling, eliminates acid waste liquid, facilitates environmental impact assessments, and lowers costs. - Forms a compressive stress layer, increasing fatigue life by 50%-200% and inhibiting crack propagation. - Surface roughening improves coating adhesion by 3+ times and extends the anti-corrosion cycle. - Removes burrs/weld slag, improves dimensional stability, and reduces the risk of machining deformation. III. Applicable Materials and Specifications - Materials: Carbon steel,

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SHANDONG LE REN SPECIAL STEEL CO., LTD.

 Audited supplier

7 year

Address: Jinan, China

Main Product: Cold Drawn Steel Bar, Bright Steel Bar, Heat Treated Steel Bar and Tube, Threaded Rods, High Strength Steel Tie Rod , High Strength Steel Bolts

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