DREHKOPFZYLINDER UND VERFAHREN ZU SEINER HERSTELLUNG

An aluminum alloy ring (the outside diameter D1) which is an element of a rotary head cylinder, is inserted in a cavity (the inside diameter D2>D1) of a fixed metal mold, with a clearance gap (D2-D1) Then, the cavity of the fixed metal mold is closed by a movable metal mold, and the inner space o...

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Main Authors OGAWA, TAKASHI, OGINO, TOMONOBU, KOBAYASHI, KENJI, HANAFUSA, HIROSHI, OKAYAMA, JP, MATSUWAKA, TETSUNORI, OHMORI, MOTOO
Format Patent
LanguageGerman
Published 12.03.1992
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PERFORMING OPERATIONS
PHYSICS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:An aluminum alloy ring (the outside diameter D1) which is an element of a rotary head cylinder, is inserted in a cavity (the inside diameter D2>D1) of a fixed metal mold, with a clearance gap (D2-D1) Then, the cavity of the fixed metal mold is closed by a movable metal mold, and the inner space of the aluminum alloy ring is filled with molten synthetic resin material. The filling resin is pressurized so that the aluminum alloy ring elastically expands until the outer diameter thereof D1 becomes exactly or almost equal to D2. After that, the filling synthetic resin material is cooled. Thus, the aluminum alloy ring and the synthetic resin material are integrated, resulting in a rotary head cylinder molding.
Bibliography:Application Number: DE19914126185