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Mold Heat & Surface Treatment: Options & Lifespan Influence

Mold Heat & Surface Treatment: Options & Lifespan Influence

Mold heat treatment and surface treatment options, how they affect mold lifespan. Professional guide for wear resistance, corrosion resistance & service life improvement.

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Mold heat treatment and surface treatment are key to extending service life, improving wear resistance and corrosion resistance. Below are the most practical options and their impact on mold lifespan.

1. Mold Heat Treatment Options & Lifespan Impact

Heat treatment enhances mold hardness, toughness and stability, directly determining basic lifespan.
  • Quenching & Tempering: Most common option. Improves hardness (HRC50-60) and toughness, reduces deformation. Extends lifespan by 2-3 times vs untreated molds; suitable for all steel molds.
  • Annealing: Reduces internal stress, improves machinability. Prevents mold cracking during use, ensuring stable lifespan; used for pre-processing of high-hardness steel molds.
  • Nitriding: Improves surface hardness and wear resistance, no deformation. Extends lifespan by 3-5 times, ideal for precision molds (e.g., S136 steel molds).

2. Mold Surface Treatment Options & Lifespan Impact

Surface treatment enhances wear, corrosion resistance, and reduces friction, further extending lifespan.
  • Chrome Plating: Improves corrosion and wear resistance, smooth surface. Extends lifespan by 2-4 times; suitable for plastic and die-casting molds.
  • TiN Coating: High hardness, low friction. Prevents adhesion, extends lifespan by 4-6 times; ideal for high-precision, high-wear molds.
  • Polishing: Reduces surface roughness, avoids material adhesion. Extends lifespan by 1.5-2 times; necessary for mirror and transparent product molds.
Key Tip: Combine heat treatment (quenching & tempering/nitriding) with surface treatment (TiN coating/chrome plating) for maximum lifespan improvement (5-8 times).
We provide professional mold heat and surface treatment services, tailored to your mold material and usage scenario. Contact us for free consultation.

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