Occupational RF exposures occur to workers engaged in a number of industrial processes, particularly when using dielectric heaters for wood lamination and the sealing of plastics and industrial induction heaters.
Reinz-Dichtungs GmbH has worked as a system partner to the automotive and mechanical engineering industries for many years, and has developed considerable knowledge of the special requirements of seals for plastic components.
In a basement laboratory at home, meanwhile, he and his wife, Charlene, found a way to cut and seal sheets of plastic with hot knives.
Into the trolley slip trays of pomegranates sealed in plastic, trays of vine-ripened tomatoes sealed in plastic and trays of avocados sealed in plastic.
COOPER TIRE AND RUBBER CO., -- Findlay, Ohio, said it agreed to sell its Holm Industries Inc. subsidiary, a maker of plastic sealing products, to Madison Capital Partners, Chicago, an investment firm with stakes in plastics and capital equipment companies.
Add to that the mindless – but possibly, in this case, useful – designer-seal-of-approval effect, and suddenly plastics are commanding a little more respect.
Its commercial success is attributable in part to the development of plastic seals that have made it possible largely to dispense with the use of ammonium chloride.
The object is to seal the two layers of plastic to each other along their edges.
You would see mushy spheres of it sealed in plastic, maybe soaked in vinegar.
We cooked it in the bowl of water, sealed with plastic wrap, for a few minutes more on very low heat.
We cooked it in the bowl of water, sealed with plastic wrap, for a few minutes more on very low heat.
