Stabilisering av process

Sammanfattning

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 situation

unpredictable. Unpredictable in the way that the same type of heater shows different

resistance, depending on which time they have been produced. The desired repetitively

process is almost non-existing.

The aim of this master thesis is to primary identify those parameters that effects the

resistance, observe and if possible to perform tests on them. The results from this analysis

stand 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 to

achieve. But the communication between the units printing and design has to become more

profound. It is the printing unit that will supply the design unit with the necessary parameters

for the constructor to construct heaters according to the customer’s demands.

The conclusions from the master thesis are that a standardized and repetitive printing process

is possible. A standardized and repetitive process will also simplify the control of the

parameters that affects the resistance. The gain of controlling the parameters is great. The

costs of producing waste and the time used on reprinting heaters can be reduced.