foerfarande foer framstaellning av i slang av formvulkaniserat elastomeriskt material saosom vulkaniserat gummi, i synnerhet i kylarvaetskeslang av bilkylare

摘要

A method for the production of a hose of a shape-cured elastomeric material, such as vulcanized rubber, especially an automotive radiator coolant hose, which method comprises the bringing of the hose onto a flexible straight mandrel, sliding the flexible mandrel onto an inner mandrel portion having the finally desired configuration of the hose, curing the hose in this configuration, sliding the flexible mandrel together with the hose off said inner mandrel portion and bringing the flexible mandrel onto a straight auxiliary mandrel and sliding the hose off the mandrel.