Offering Description

•  Failure Explanation technique identifies the cause of a defect in the product or bottleneck in the process
•  Failure Anticipation technique produces hypotheses of most probable product or technology failure

Background

• Scenario:
  • A company produces paper which is used to manufacture cardboard. The production process has the following disadvantage: non-uniform moisture distribution within the paper. This non-uniformity eventually leads to curling of the cardboard. Despite many attempts, the company has been unable to identify the cause of this problem.
• Challenges:
  • Uncover the hidden causes of the non-uniformity of moisture in paper
  • Develop disadvantage-prevention concepts

Hypotheses

• One-point removal of condensing water can provide non-uniform drum cooling
• Non-uniform air flow around the drum can create non-uniform distribution of moisture in the paper

Practical Validity of Proposed Solution

Expert opinion:

• Both described phenomena exist
• Both phenomena together can provide existing non-uniform moisture distribution

Recommendations

Install multi-point air- and water removal systems