In the vast and intricate industry of shipbuilding and repair, surface treatment is a crucial step, directly impacting the quality, lifespan, and performance of a vessel. Steel shot and steel grit, as commonly used abrasives for metal surface treatment, play an irreplaceable role in the shipbuilding field.
1. Highly Effective Cleaning of Surface Impurities
Ships sail in the marine environment for extended periods, inevitably accumulating impurities such as rust, scale, oil stains, and old coatings on their hull surfaces. Steel shot and steel grit act like diligent “cleaners,” quickly and effectively removing these impurities through high-speed impact on the hull surface. Taking Junda’s steel shot and steel grit as an example, in the shipbuilding industry, using its products for sandblasting of ship hulls can quickly and effectively remove dirt and rust from the hull surface, achieving the required cleanliness and roughness, providing a good foundation for subsequent painting processes. Based on actual user feedback, hulls treated with this company’s steel shot and grit showed over 25% improved coating adhesion, significantly enhancing the ship’s corrosion resistance.
2. Significantly Enhanced Hull Performance
During navigation, a ship’s hull structure endures various complex stresses and alternating loads, placing high demands on the fatigue strength and corrosion resistance of hull materials. The high-speed impact of steel shot and grit can induce plastic deformation in the hull surface material, creating residual compressive stress that offsets some of the tensile stress during operation, thereby improving the hull’s fatigue strength, corrosion resistance, and service life. In bridge construction, steel shot strengthening treatment can increase the fatigue life of steel structures by 20%-30%. Similarly, in the shipbuilding industry, the strengthening effect of steel shot and grit on the hull makes ships more robust and durable.
3. Precise Surface Finishing
Some special parts of a ship have specific requirements for surface roughness, such as anti-slip areas and areas requiring increased friction. Steel shot and grit can alter the surface roughness of the hull, achieving a uniform matte or rough texture to meet these specific aesthetic or functional needs. Meanwhile, for some thin-walled ship parts, steel shot and grit can also perform micro-shaping, correcting minor deformations and ensuring the dimensional and shape accuracy of the parts.
With its advantages in cleaning, strengthening, shaping, and environmental protection, steel shot and grit have become an ideal choice for surface treatment in the shipbuilding industry. With continuous technological advancements and the ongoing development of the shipbuilding industry, it is believed that steel shot and grit will play an even greater role in the shipbuilding field!
For more information, please feel free to discuss with our company!
Post time: Jan-08-2026
