"The 'Tight Guardian' of Extreme Marine Environments: Locally Produced Bolts Achieve 20 Years of Rust-Free Performance"

Release date:

2025-10-31

At the material level, molybdenum-chromium-modified alloy steel combined with deep cryogenic treatment refines the steel's grain size from Grade 8 to Grade 10, increasing its fatigue life by 50%. Additionally, the impact energy at a low temperature of -40°C significantly exceeds the national standard.

For ships navigating the ocean, bolt failure can lead to serious accidents such as anchor chain breakage or equipment leaks—subjected simultaneously to the triple challenges of high salt spray, intense vibration, and extreme temperature fluctuations, which typically cause ordinary bolts to rust through or loosen within 3 to 5 years. However, Asmi Corporation’s newly developed high-strength bolts, backed by innovative technological advancements across the entire production chain, have emerged as a "safety barrier" capable of withstanding even the harshest operating conditions.

At the material level, molybdenum-chromium-modified alloy steel combined with deep cryogenic treatment refines the steel’s grain size from Grade 8 to Grade 10, increasing its fatigue life by 50%. Additionally, the impact toughness at a low temperature of -40°C far exceeds national standards. In terms of coating technology, significant breakthroughs have been achieved: a three-layer composite coating—consisting of hot-dip galvanizing, zinc-nickel alloy plating, and an organic sealing layer—delivers exceptional salt-spray test performance, lasting over 1,500 hours—more than twice the industry standard. This translates to nearly 20 years of rust-free durability in marine environments. Meanwhile, the patented anti-loosening design incorporates an elastic washer and serrated threads, effectively limiting preload variation to within 3% and completely eliminating the issue of loosening caused by vibration.

At the South China Sea FPSO platform, adopting this bolt resulted in a 32% reduction in total lifecycle costs; meanwhile, LNG vessels using these bolts on Arctic routes have experienced no bolt failures or loosening after three years of operation. From material selection to process innovation, domestically produced marine fasteners are now safeguarding global shipping safety with performance that’s "more reliable and more cost-effective."

Seemingly traditional fasteners are entering a technological boom, with four major trends—high-strength materials, intelligent upgrades, 3D printing, and sustainable development—driving this fundamental component into a whole new phase of growth.

2025-10-31

"The 'Tight Guardian' of Extreme Marine Environments: Locally Produced Bolts Achieve 20 Years of Rust-Free Performance"

2025-10-31

Cracking the Tightening Challenge for Thin Materials: How Press-Riveted Nut Studs Become Industry’s “Unseen Heroes”

In the manufacturing of lightweight products such as smartphones and new-energy vehicles, fastening thin substrates thinner than 3mm has long been a major industry challenge—direct tapping easily leads to cracking, while welding nuts often causes deformation. Traditional methods have consistently struggled to strike the right balance between efficiency and precision.

2025-10-31

From wooden pegs to smart fasteners: A small component that has witnessed three millennia of technological leaps in human civilization.

Today, fasteners have entered the "smart era." By integrating sensors and wireless communication modules, these new-generation fasteners can monitor connection status and mechanical changes in real time—while 3D printing technology enables the personalized fabrication of intricate, complex structures.

2025-10-31

Green Manufacturing Breakthrough: Biodegradable Fasteners Turn E-Waste Into Valuable Resources

R&D engineers explain that this fastener is made from high-purity magnesium as its base material, with the addition of biodegradable elements like zinc and calcium to form an alloy. It boasts a tensile strength of up to 320 MPa, perfectly meeting the fastening requirements for consumer electronics such as smartphones and tablets.

2025-10-31

The Safe Weight of a Screw: Counting the Fastening Alarms That Resonated with Lives Lost

"Industrial Rice"—even the tiniest flaws in screws and nuts can lead to life-threatening accidents. Recent reviews of multiple safety incidents reveal that uncontrolled fastener quality has quietly become a growing threat to public safety.

2025-10-31

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