Method for producing mold for rubber article, mold for rubber article, method for producing mold member, and mold member
AssigneeBridgestone Corporation
InventorYasuyuki ISHIHARA
Life of this patent
Estimating the term…
Abstract
A mold for rubber article with a rubber forming part formed by sintering of a metal powder can be simply and easily improved. The mold for rubber article includes; a rubber forming part to mold a rubber article, while being in contact with the rubber article in a contact part, and a holding part to hold the rubber forming part. The rubber forming part is formed by sintering of the metal powder. At the time of casting of the holding part, a part or the whole of parts except for the contact part of the rubber forming part is cast in the holding part, so that the holding part and a cast-in part of the rubber forming part cast in the holding part are joined to each other.
Claims21
A method for producing mold for rubber article to produce a mold for rubber article provided with;
- a rubber forming part to mold a rubber article, while being in contact with the rubber article at a contact part, and a holding part to hold the rubber forming part, wherein it comprises steps of:
- forming a rubber forming part by sintering of a metal powder, and
- casting to cast a part or the whole of parts except for the contact part of the rubber forming part in the holding part and to join the holding part and a cast-in part of the rubber forming part cast in the holding part, at the time of casting of the holding part.
A mold for rubber article to mold a rubber article, wherein it comprises;
- a rubber forming part which is a sintered body of the metal powder and molds the rubber article while being in contact with the rubber article at a contact part thereof, and
- a holding part which is a cast body having a part or the whole of parts except for the contact part of the rubber forming part cast therein and holds the rubber forming part.
A method for producing mold member to produce a mold member used for a mold for rubber article, wherein it comprises steps of:
- forming the mold member to be in a state preceding the plating, and
- plating to the surface of the mold member after the formation so as to coat the surface of the mold member with a plating film.
(canceled)
Dependencies are inferred from the claim text.