What Is Hard Coat Pagpapahid ng Langis?
Hard coat anodizing is a method of anodizing aluminum. Anodizing is an electrochemical process that converts surface aluminum to aluminum-oxide. Anodizing improves the metals resistance to corrosion, wear and increases durability. Hard coat anodizing further enhances these properties.
Hard Coat Anodizing
Anodizing is designated as Type I or Type II. Hardcoat anodizing is referred to as Type III anodizing.
The Hard Coat Process
Hard anodizing or hard coating uses a sulfuric acid electrolyte to convert the aluminum surface to aluminum oxide. The sulfuric acid bath is approximately 32 mga degree F, with a current density of 23 sa 37 amps. The time to hard coat is from approximately 20 minutes to 2 oras. The alloy and coating thickness determines the amount of time.
Mga Haluang Haluang ha
Aluminum alloys will accept anodizing. Alloys higher in aluminum with less copper and silicone will accept the hard coat process better. The type of alloy changes the rate the coating builds up.
Kulay
Hard coat anodizing colors aluminum gray. It can also be dyed, but the colors don’t come out as vibrant as they do with Type I or II anodizing.
Benefits of Hard Coat
Hard coat anodizing gives several advantages over anodizing. Kabilang sa kanila, the metal is less resistant to abrasion, wears better, is harder and resists corrosion.