Sealing component inspection method, inspection device, and inspection program

A sealing component inspection device comprising:

• an input unit to which a measurement value of a gas permeation amount of a rubber sealing component measured by helium leak testing is input;
• a sample generation unit that generates, for each measurement value of a plurality of sealing components manufactured according to the same specifications, sample data formed of a pair of a measurement value at a predetermined criterion time in an unstable period during which a permeation amount increases, and a measurement value in a stable period during which a permeation amount is stable;
• a definition unit that defines a relationship between a measurement value at the criterion time and a measurement value in the stable period by a linear function on the basis of a plurality of generated sample data;
• and
• an estimation unit that estimates a measurement value of a sealing component, which will be inspected and has been manufactured according to the same specifications as those for the plurality of rubber sealing components, in the stable period by using the linear function on the basis of the measurement value thereof at the criterion time.

A sealing component inspection program installed in a computer to cause the computer to implement:

• a function to accept input of a measurement value of a gas permeation amount of each of a plurality of rubber sealing components, which have been manufactured according to the same specifications, measured by helium leak testing;
• a function of generating, for each of the sealing components, sample data formed of a pair of a measurement value at a predetermined criterion time in an unstable period during which a permeation amount increases and a measurement value in a stable period during which a permeation amount is stable;
• a function of defining, by a linear function, a relationship between a measurement value at the criterion time and a measurement value in the stable period on the basis of a plurality of generated sample data;
• a function of accepting input of a measurement value of a gas permeation amount of a sealing component which will be inspected and has been manufactured according to the same specifications as those for the plurality of rubber sealing components, the gas permeation amount being measured by helium leak testing;
• and
• a function of estimating, using the linear function, a measurement value of the sealing component, which will be inspected, in the stable period on the basis of the measurement value thereof at the criterion time.