| 摘要 |
PROBLEM TO BE SOLVED: To improve a mold-release characteristics by making a mold of metal on the surface of which a film of polytetrafluoroethylene is formed to eliminate leakage. SOLUTION: At least first and second molds (1 and 10) for a stator are made of metal, on the surface of which a film (3) of polytetrafluoroethylene is formed, for preventing deformation under heat and improving mold-release characteristics. COPYRIGHT: (C)2004,JPO
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