Bag hardware of the abrasion resistance -A

The abrasion resistance of bag hardware mainly depends on the material selection, surface treatment process, design structure and use environment, the following are specific analyses and recommended directions:

Influence of material on wear resistance

Stainless steel (recommended)

304 or 316 stainless steel is suitable for high-frequency use scenarios (industrial equipment, outdoor signs) due to its high hardness and corrosion resistance. For example, 316 stainless steel contains molybdenum, it improves salt spray corrosion resistance by more than 30% compared to 304, making it suitable for humid environments.

Aluminium alloy (lightweight option)

The hardness of 6061-T6 aluminium alloy is about HV95, and the abrasion resistance is increased by 2-3 times after anodic oxidation on the surface, which is suitable for weight-sensitive scenarios (portable equipment). However, strong acid and alkali environments need to be avoided.

Copper alloy (decorative priority)

Brass (H62) hardness HV80-100, wear resistance is weak, but can use to nickel-plated (thickness ≥ 5μm) to enhance wear resistance, suitable for low-frequency contact decorative parts.

Surface treatment process to enhance wear resistance

Physical vapour deposition (PVD) coating

TiN (Titanium Nitride) coating hardness high to HV2000, wear resistance is 3 times of chromium plating, suitable for high-end equipment marking.

Laser hardening

Laser fusion coagulation of stainless steel surfaces can form a hardened layer with a thickness of 0.1-0.3mm, increasing the hardness to over HV600 and significantly improving scratch resistance.

Chemical conversion film

Stainless steel passivation treatment (trivalent chromium passivation) can improve corrosion resistance and indirectly reduce the wear rate, suitable for long-term exposure to the environment.

Design structures to optimise wear resistance

Rounded corner transitions

We round Logo edges with R≥0.5mm to avoid wear cracks caused by stress concentration. For example, rounded corners on automotive wheel logos can increase wear life by up to 40%.

Layered structure

The three-layer structure of substrate + wear-resistant layer + decorative layer (stainless steel substrate + PVD coating + silkscreen) can take care of both wear-resistance and visual effect.

Embedded installation

Embedding the logo in the groove makes the surface 0.2-0.5mm lower than the substrate, reducing direct contact wear.