Thereafter, the molten metal is poured onto the surface of the gypsum mold in such a way that the tubular body is buried in the mold while the slit is exposed on a tire molding surface
of the mold.
For efficient process control, the mold must be equipped with thermocouples that are close to the molding surface to monitor temperature.
Also, placing water lines close to the molding surfaces will help speed up response time.
The local texture of the molding surface
of the cavity and also the processing conditions affected the gloss of the corresponding surface of the molded parts.
Key statement: A tire vulcanization mold cleaning method for cleaning a molding surface
of a sector of the tire vulcanization mold for molding a tread portion of a pneumatic tire by using plasma created in an atmosphere of a reaction gas which chemically reacts with dirt attached to the molding surface
of the sector.
That will give us uniform heat transfer tram the molding surface
18 mm from the molding surface
along the entire perimeter of the cavity.
Each mold piece has a molding surface
for forming a tread pattern of the tire tread portion, and end surfaces where adjacent mold pieces are in abutment with each other when they are assembled.
Isobar super-thermal conductors, used in conjunction with Isoplatens, permit each core molding surface
to be held at the optimum uniform molding temperature and provide high thermal efficiency, according to the literature.
The tool is enclosed in a box of wood or other material so that the molding surface
can be entirely covered with loose plastic powder or granules.
By leaving extra metal on the molding surfaces
of the production tool, changes can be made if determined necessary during prototyping.
The principal benefits of the system are exceptional temperature uniformity of all molding surfaces
and rapid mold-temperature recovery after each clamp opening.