Stabilisering av process
Calesco Foil AB is a manufacturer of thin flexible circuits for heating or electric conduction.The plant is located in Kolbäck, Sweden.One of the company?s products, the conducting polymer pasta is in present situationunpredictable. Unpredictable in the way that the same type of heater shows differentresistance, depending on which time they have been produced. The desired repetitivelyprocess is almost non-existing.The aim of this master thesis is to primary identify those parameters that effects theresistance, observe and if possible to perform tests on them. The results from this analysisstand as base for recommendations to achieve a repetitive and standardized printing process.The results and the observations from the tests indicate that a repetitive process is possible toachieve. But the communication between the units printing and design has to become moreprofound. It is the printing unit that will supply the design unit with the necessary parametersfor the constructor to construct heaters according to the customer?s demands.The conclusions from the master thesis are that a standardized and repetitive printing processis possible. A standardized and repetitive process will also simplify the control of theparameters that affects the resistance. The gain of controlling the parameters is great. Thecosts of producing waste and the time used on reprinting heaters can be reduced.