Because of the place obstruction of corrosion products in the surface of the alloys, while corrosion time is at 120 minutes above, the corrosion rate descends to the stable value in 48 hours.
当腐蚀浸泡的时间大于120分钟后，腐蚀产物在铝合金表面产生了明显的位阻作用，从而使腐蚀速率逐渐下降，直至48小时后，腐蚀速率趋于一相对稳定的数值。
Proved by practice, the die's structure is feasible, reliable, stable, can ensure the products quality, and has reference value for this kind of parts progressive die design.
实践证明，该模具结构合理、可靠、稳定，能保证产品质量，对此类零件的级进模设计有参考价值。
Proved by practice, the die's structure is feasible, reliable, stable, can ensure the products quality, and has reference value for this kind of parts progre…
实践证明，该模具结构合理、可靠、稳定，能保证产品质量，对此类零件的级进模设计有参考价值。
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