A method for preparing a pair of ptfe-based material surfaces, a method for joining parts of ptfe-based material, and a pair of ptfe-based material end-pieces

摘要

welding of ptfe parts during joining of ptfe parts (10), a binder (20) is applied to the joint surfaces of the ptfe parts, for example by welding, before the parts are joined. By establishing a bond between ptfe and a binder in an initial separate process, the parameters of that initial process can be determined without regard to other conditions, such as preservation of dimensions, and the quality of that bond can be controlled and approved prior to subsequent joining. of the ptfe parts. during subsequent bonding, the temperature may be maintained at a level which is sufficiently low so as not to permanently deform the ptfe material, or bonding may be performed by a process which does not require heating, for example collage.