| 摘要 |
PURPOSE:To prevent sticking of iron and a friction material by providing a void between iron and a metal which can be a sacrifice anode for iron to prevent the generation of rust even if dew condensation is caused in the void. CONSTITUTION:5mg/cm<2>-30mg/cm<2> of metal which can be a sacrifice anode for iron is stuck to the surface of a friction material, and a groove or a hole is provided in a layer of the metal which can be a sacrifice anode for iron. That is, after metal which can be a sacrifice anode is stuck to the friction surface, a device like a frog having a lot of needle-like projections is forced in the friction surface to make holes. Accordingly, a void is formed between iron and the metal which can be a sacrifice anode for iron, so that even if dew condensation is caused in the void, rust will not be generated to prevent sticking of iron and the friction material.
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