Claims
- 1. A method for molding golf balls, wherein said golf balls comprise a spherical molded core including a central portion having a hardness in a range of about 50-90 Shore C and an outer surface portion having a hardness in a range of about 50-70 Shore C, the surface portion integral with the central portion and comprising the radially outmost 1/32 inch to 1/4 inch of the spherical core and a cover molded over the spherical molded core, the method comprising the steps of:
- softening the outer surface of a slug, said slug to be used as a center for a golf ball, wherein the softening is to a depth of up to 1/4 inch by controlling molding temperatures, thereby producing a spherical core having a soft integral outer surface; and
- molding a cover over the soft integral outer surface of the spherical core.
- 2. A method for molding golf balls according to claim 1, wherein the softening step comprises:
- a) placing the slug in a cavity of a mold
- b) closing the mold;
- c) setting a steam set point;
- d) applying steam for a predetermined time period; and
- e) achieving a maximum mold temperature, said maximum mold temperature being in excess of the steam set point.
- 3. A method for molding golf balls, according to claim 2, wherein the steam set point is in the range of about 210-230.degree. F.
- 4. A method for molding golf balls, according to claim 2, wherein the steam is applied for 25-30 minutes.
- 5. A method for molding golf balls, according to claim 2, wherein the maximum mold temperature is in the range of 230-280.degree. F.
Parent Case Info
This is a divisional of application Ser. No. 08/551,255 filed on Oct. 31, 1995, now U.S. Pat. No. 5,733,206.
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Divisions (1)
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Number |
Date |
Country |
Parent |
551255 |
Oct 1995 |
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