| 摘要 |
<p>A method of analyzing factors influential in the product quality of injection molding machine, and a method of adjusting molding conditions, by which data useful for inspecting a molded product are appropriately selected, and molding conditions under which the molded products are free from defects are easily determined and adjusted. Main component analysis is carried out by determining correlation coefficient representing the correlationship of changes of the conditions associated with injection molding so as to find first and second main component axes. Points corresponding to variations of the conditions for each main component axis are plotted on a diagram of the Cartesian coordinates system. The characteristics of the change tendency of mutual data of the conditions are evaluated as a whole by using the first and second main component axes along which the data of the conditions change the most greatly as the reference, so that selection of the detection data for inspection and the molding conditions is easy, and the inspection and the adjustment of the molding conditions is easy.</p> |
