Release time：2020-01-16 18:44 Browse：
High-strength materials: Stainless steel (e.g., 304, 316), alloy steel (e.g., Grade 8.8, 12.9), or titanium alloys offer better corrosion and fatigue resistance.
Surface treatments:
Plating: Zinc, nickel, or Dacromet coatings prevent rust.
Carburizing/Nitriding: Enhances surface hardness and wear resistance.
Oxidation: Black oxide treatment for certain environments.
Environment adaptation:
Use 316 stainless steel or coated screws in humid/chemical environments.
High-temperature applications require heat-resistant alloys (e.g., A286 stainless steel).
Additional protection: Apply anti-rust oil, sealant, or nylon washers to block moisture.
Avoid overloading: Ensure screws operate within rated tension/shear limits.
Even force distribution: Use washers to reduce localized stress.
Proper tightening:
Use a torque wrench for correct preload.
Avoid over-tightening to prevent thread damage.
Check for looseness: Retighten periodically (use thread locker or double nuts in vibrating environments).
Clean and lubricate: Remove rust/debris; reapply protective coatings if needed.
Replace worn parts: Swap damaged screws or nuts promptly.
High temperature: Use heat-resistant alloys (e.g., nickel-based) to avoid softening.
Vibration: Apply spring washers, lock nuts, or thread-locking adhesive.
Chemical exposure: Opt for PTFE-coated or corrosion-resistant alloys (e.g., Hastelloy).
Structural optimization: Increase screw diameter or reduce overhang to minimize stress.
Avoid galvanic corrosion: Match screw/nut materials (e.g., both stainless steel).
