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Dimensional Tolerances

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4.1  Dimensional Tolerances

The dimensional tolerances for DURANEX® 2000 and 2002 are illustrated in Fig. 4-1. With precision molding, the tolerances obtainable are ±0.3% for 25mm, ±0.2% for 50mm, and ± 0.13% for 125mm. Within this dimensional range, the tolerances for DURANEX are roughly same as those for DURACON® POM.

Figure 4-1

Dimensional scattering of DURANEX 3300 measured with 120×120×3mmt flat plates indicated following results:

Single day variation (3σ) : 0.038 - 0.059%

Day-to-day variation over a short period of time (3σ) : 0.12%

Similar test results with DURACON were 0.027 - 0.059% and 0.048 - 0.094% respectively. Therefore, the dimensional scattering of DURANEX 3300 is similar to or slightly larger than that of DURACON.

 

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Contents Introduction Molding
Conditions		 Moldability Molded Product
Quality		 Mold
Design		 Safety Countermeasures