Abrasion resistant plastic bonded to a diaphragm

Details Abrasion resistant plastic bonded to a diaphragm Abrasion resistant plastic bonded to a diaphragm

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 3/00 (2006.01) B29D 99/00 (2010.01) F01B 19/00 (2006.01)

Patent

CA 2180413

An improved diaphragm substantially resistant to abrasive wear for use in certain applications in which at least a portion of such diaphragm is in contact with another surface which would tend to abrade such diaphragm, such diaphragm comprising at least one layer of a flexible material selected from a group including natural rubber, synthetic rubber, fabric reinforced rubber, plastic and mixtures thereof and an abrasion resistant polymeric material having a predetermined thickness. This abrasion resistant polymeric material is adhered to such diaphragm at least in the portion that such diaphragm is in contact with another surface and is subject to abrasion. This type of abrasion generally occurs in the flange area of the diaphragm.

Un diaphragme amélioré afin d'offrir une bonne résistance à l'usure par abrasion, et destiné aux applications lors desquelles au moins une partie d'un tel diaphragme risque d'entrer en contact avec une surface susceptible d'abraser le diaphragme, ledit diaphragme comportant au moins une couche d'une matière flexible choisie parmi le groupe comprenant le caoutchouc naturel, le caoutchouc synthétique, le caoutchouc renforcé, le plastique et les mélanges du plastique, et une matière en polymères résistante à l'abrasion. Cette matière en polymères résistante est adhérée au diaphragme sus-mentionné, au moins sur la partie où un tel diaphragme est en contact avec une autre surface et serait ainsi susceptible à l'abrasion. Ce type d'abrasion se produit le plus souvent près du bord saillant du diaphragme.

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