由此提出降低走廊烟速、减少尾部受热面局部磨损的具体措施。

The methods have been developed to reduce the velocities of gas flow in narrow passages and erosions of heat surfaces in some local places.

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每个止回阀应该都配置中心和边缘引导，确保可更换阀座密封和最小的局部磨损。

Each check valve shall be both center and edge-guided to ensure repeatable seating and minimize localized wear.

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因此，在热挤压过程中，如何减少磨损、避免局部磨损过大是设计人员最关心的问题之一。

So, in hot extrusion process, how to reduce wear and improve die life is one of the most concerned problems for mold designer.

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