To accelerate the construction of highway performance in the circle of Taldy-Kurgan regional station of young technicians was created a set of tools:
– the matrix and the punch for stamping the cases;
– the mold for melting the disks and the current collectors;
– matrix for boiling front and rear tires;
The forming die and punch for forming housings of epoxy putty covered by a separating layer. Of burnt fiberglass (thickness 0.1—0.2 mm) cut out three or four square, tight punch with a small margin. Then these squares and coat with epoxy resin and overlay alternately on the core, smoothing out the creases. In places where the pleats to remove fails, the fabric cut and pressed one layer to another. Plug with layers of fiberglass placed in a die and compressed under a press or in a vise.
After the complete hardening of the epoxy resin (10-14 hours) form, heated to 70-80°, and the punch together with the molded body extracted from the matrix. Using the knife, remove the excess fiberglass and remove the housing with a punch. For obtaining the rigidity of the housing is heated in an oven at 110-120°.
Two classes in the circle you can make a case for one model. When working with epoxy you need to follow the safety measures: wear rubber gloves, mandatory ventilation.