亜鉛メッキ板の違い, アルミニウム - 亜鉛合金板, および亜鉛メッキシリコンシート

亜鉛メッキ板の違い, アルミニウム - 亜鉛合金板, および亜鉛メッキシリコンシート

Zinc-Aluminum Alloy Plate

• 構成: 含む 95% 亜鉛, 5% アルミニウム, 微量希土類元素.
• 重要な機能:
  • Excellent plasticity and coating adhesion.
  • Maintains corrosion resistance before and after deformation.
  • Offers 2–3 times better atmospheric corrosion resistance compared to conventional hot-dip galvanized sheets.
  • 塗装性、溶接性良好.
  • Superior toughness, comparable to electro-galvanized sheets.
• アプリケーション: Ideal for environments requiring high corrosion and weather resistance, often used as a coating material substrate.

アルミニウム - 亜鉛合金板 (GL)

• 構成: Coating contains 55% アルミニウム, 43.3% 亜鉛, そして 1.6% シリコン.
• 重要な機能:
  • Smooth surface with excellent atmospheric corrosion resistance, 2–6 times better than hot-dip galvanized sheets.
  • High-temperature resistance up to 315℃ without discoloration or deformation.
  • Superior water and soil corrosion resistance compared to galvanized and aluminum sheets.
  • Heat reflectivity exceeds 75%, 標準亜鉛メッキ板の2倍.
  • Offers good paintability and processability.
• アプリケーション: Widely used as a replacement for traditional galvanized sheets in construction, 自動車, and industrial sectors.

熱間圧延亜鉛メッキ板

• 製造工程: Made by pickling and galvanizing hot-rolled sheets directly.
• 重要な機能:
  • Similar performance to cold-rolled galvanized sheets.
  • Lower production costs due to the omission of the cold-rolling process.
  • More economical with competitive pricing.
• アプリケーション: Commonly used in construction, 自動車製造, 鋼鉄サイロ, railway cars, そして高速道路のガードレール.

Hot-rolled galvanized sheets are less commonly produced in China, as most existing production lines focus on cold-rolled galvanized sheets. しかし, their affordability and performance make them a practical choice for cost-sensitive applications.