METHOD OF PRODUCING SEAL MEMBER

• US 20120256342A1
• Filed: 03/15/2012
• Published: 10/11/2012
• Est. Priority Date: 04/07/2011
• Status: Abandoned Application

• Current Assignee: Jtekt Corporation (Toyota Motor Corporation)
• Original Assignee: Jtekt Corporation (Toyota Motor Corporation)
• Inventors: MASUDA, Yoshinori
• Application Number:
  US13/421,472
• Publication Number:
  US 20120256342A1
• Time in Patent Office: Days
• US Class Current: 264/233
• CPC Class Codes: B29C 2045/0058 removing material
• CPC Class Codes: B29C 45/0013 using fillers dispersed in the moulding material, e.g. metal particles
• CPC Class Codes: B29L 2031/04 Bearings
• CPC Class Codes: F16C 19/186 with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
• CPC Class Codes: F16C 2326/02 Wheel hubs or castors in general B60B
• CPC Class Codes: F16C 33/7833 Special methods of manufacture
• CPC Class Codes: F16C 33/7876 with sealing lips
• CPC Class Codes: F16C 33/7879 with a further sealing ring
• CPC Class Codes: F16J 15/328 Manufacturing methods specially adapted for elastic sealings moulding B29C

Abstract

A method of producing a seal member includes: a mixing step of mixing an elastic material and fine particles using a kneading device, so as to form a mixed material; a molding step of charging the mixed material into a molding die, and forming an elastic molded piece having a shape corresponding to that of a molded seal of the seal member; and a particle removing step of removing the fine particles present on a surface of the elastic molded piece, so as to form the molded seal.

Claims

1. A method of producing a seal member comprising:

mixing an elastic material and fine particles using a kneading device, so as to form a mixed material;

charging the mixed material into a molding die, and forming an elastic molded piece having a shape corresponding to that of a molded seal of the seal member; and

removing the fine particles present on a surface of the elastic molded piece, so as to form the molded seal.

2. The method according to claim 1, wherein:

water-soluble particles are used as the fine particles; and

the elastic molded piece is washed with a wash liquid, so that the fine particles present on the surface of the elastic molded piece are dissolved to be removed.