Glass-forming die and method

A glass forming and mold technology, applied in glass forming, glass blowing, glass pressing, etc., can solve problems such as thermomechanical fatigue cracks, achieve large output, increase mold life, and improve uniformity

Inactive Publication Date: 2008-06-04
HOWMET CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason for this phenomenon is not fully understood but may involve second stage oxidation or thermomechanical fatigue cracking in cast iron

Method used

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  • Glass-forming die and method
  • Glass-forming die and method
  • Glass-forming die and method

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] Referring to Figures 1 and 2, a pair of parison-forming molds, known as "blank" molds, are shown for molding a "block" of molten glass to form the parison mold between them during the bottle making process described above . The molds 10, 12 comprise respective mold bodies 10a, 12a having surfaces 10b, 12b which fit and contact together when the molds are closed or pressed together in a bottle making machine.

[0023] The mold body comprises respective mold cavity regions 10c, 12c which, when the molds 10, 12 are closed or pressed together in the bottle making machine, form a complete mold cavity with a three-dimensionally shaped parison. The mold cavity area is defined by respective molding surfaces 10s, 12s on the mold bodies 10a, 12a. As shown in Figure 1, each molding surface has a curved profile to collectively form a portion of the curved outer surface of the parison. In the practice of the present invention, the molding surfaces 10s, 12s may optionally be provid...

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PUM

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Abstract

Glass-forming die, such as a parsain- forming or bottle- forming die, includes a die body having a molding surface with a curved contour to form at least a portion of a glass bottle or other article to be made. The die body has one or more cooling passages inside the body wherein the cooling passages is / are non-linear (non-straight) along at least a portion of their length to improve temperature control of the die during the glass forming operation. To this end, the cooling passages are curved in a manner to generally follow the curved contour along at least a portion of the length of the curved contour, and may include heat radiating or turbulating elements in the cooling passage. The glass- forming die alternately, or in addition, can include integral cooling fins, ribs or other heat radiating element on one or more exterior regions of the die.

Description

[0001] This application claims priority to Provisional Application Serial No. 60 / 660919 filed March 11,2005. technical field [0002] The present invention relates to glass forming metal molds and methods that provide improved cooling of the glass forming surface of the mold. Background technique [0003] The current method of molding glass bottles involves three main steps. First, a small portion of glass called a "cube" drips in pre-measured amounts from a liquid glass holding tank above a high-speed glass bottle forming machine. The small piece is dropped into a mold called a "billet" mold, which is usually made of cast iron. The blank mold includes a cavity that houses a small piece of glass and is configured in the shape of an intermediate bottle known as a parison. The parison is then removed from the blank mold and moved to the final or final mold which has a cavity with the shape of the final bottle and the markings to be applied to the bottle. In the final or fin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B9/38
CPCC03B11/12B22C9/04B22C9/10C03B9/48B22C9/24B22D29/002B22C9/065B22C7/02C03B9/3875
Inventor 拉塞尔·G·沃格特肯尼斯·S·墨菲约翰·赫罗伯特·J·赫鲁贝茨盖尔·R·科尔二世罗伯特·E·格鲁恩特拉
Owner HOWMET CORPORATION
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