FIXING METHOD FOR CATCHING MATERIAL OF DIFFERENT THERMAL EXPANSION COEFFICIENT

摘要

PROBLEM TO BE SOLVED: To provide a new method that the fixation is kept without being influenced by the thermal expansion of both materials even at the time of temperature rise, regarding the method that fits two material of different thermal expansion coefficient. SOLUTION: A protrusion 1 is integrally provided with a subject material M, and a hole 1a is provided with the other support object P to fit the protrusion 1 as a means to fix a support object P of the material that a thermal expansion coefficient is different from the subject material M to the subject material M. Allowance for play is formed at a joint fitting part to absorb the distortion produced from the difference of the thermal expansion coefficient that occurs at the time of temperature rise. Both members are held in the fitting condition where is not influenced by the difference of the thermal expansion coefficient on the basis of the existence of the space for allowance. COPYRIGHT: (C)2004,JPO