| 摘要 |
PROBLEM TO BE SOLVED: To provide a longer lasting T-die in which securing of wear resistance and corrosion resistance at a lip part does not cause the interfusion of a foreign substance and the emergence of a streak, and which prevents a deflection and distortion at the lip part from generating even if the T-die is long, so that an extruded article having a high film thickness accuracy without unevenness can be manufactured. SOLUTION: In the T-die having a lip part 7, 8 at the end edge of an opening of a slit 4 formed on a die main body 1 and extruding a heated molten material supplied through the slit 4 from the lip part 7, 8 the die main body 1 is formed of a steel material and the lip part 7, 8 is formed of a cemented carbide wherein the steel material forming the die main body 1 and the cemented carbide forming the lip part 7, 8 have an approximately same thermal expansion coefficient. COPYRIGHT: (C)2007,JPO&INPIT
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