초록 ▼

A seal intended to wear from abrasion for use in contact with a rotor zone of a rotating machine, of the type made up of a dispersion of hollow microspheres in a binder providing cohesion of the microspheres among themselves and their attachment to a metallic support. In order to make it possible to

A seal intended to wear from abrasion for use in contact with a rotor zone of a rotating machine, of the type made up of a dispersion of hollow microspheres in a binder providing cohesion of the microspheres among themselves and their attachment to a metallic support. In order to make it possible to produce the seal by torch spraying from a powdered mixture onto the support, the hollow microspheres are made of an inorganic refractory material and the binder material is a metallic material more fusible than the material of the microspheres.

대표청구항 ▼

A method for producing a seal consisting of a dispersion of hollow microspheres in a binder and fixed to a support, said method comprising: forming a mixture of binder material powder and hollow microspheres made of an uncoated inorganic refractory material, said binder powder being fusable at a tem

A method for producing a seal consisting of a dispersion of hollow microspheres in a binder and fixed to a support, said method comprising: forming a mixture of binder material powder and hollow microspheres made of an uncoated inorganic refractory material, said binder powder being fusable at a temperature lower than the melting temperature of said microspheres; transporting said mixture to a spraying torch; and using said torch to heat and project said mixture onto said support such that said binder powder is fused and bonded to said micropsheres and said support, and such that said microspheres are not substantially deformed and fragmented.