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Hot pressure blowing method of forming metal bottle

A technology of metal bottle and blowing method, applied in the field of metal bottle hot pressing blowing method, can solve the problems of complex appearance updating process and single appearance, etc.

Inactive Publication Date: 2007-09-12
谢靖佳
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  • Summary
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AI Technical Summary

Problems solved by technology

[0002] At present, the manufacture of two-piece metal containers (container and container lid) mainly adopts the stamping process, and the formed container is limited to a cylindrical shape with a single shape (such as a can), and the shape update process is complicated

Method used

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  • Hot pressure blowing method of forming metal bottle
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  • Hot pressure blowing method of forming metal bottle

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Experimental program
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Embodiment Construction

[0014] 1. Process structure

[0015] The process structure diagram of the metal bottle hot press blowing method is shown in Figure 1. It consists of a mold base, left and right side molds, a bottom mold, a pressure conduit and a heating device.

[0016] 1) preform

[0017] The preform is the blank before forming the metal container, which can be formed by the traditional stamping and drawing process. The length of the preform should be equal to or slightly longer than the length of the container, and its diameter is determined according to the final shape of the container. The preform is usually a necked preform (Figure 2).

[0018] 2) Side molds (left and right side molds) and bottom molds

[0019] Side and bottom molds are used to form a closed cavity whose shape determines the final shape of the metal container. Dividing the closed cavity into left and right side molds and a bottom mold is convenient for placing the preform and taking out the molded container. There ar...

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Abstract

The hot pressing and blowing process for forming metal bottle is to form metal bottle with high pressure inside a closed mold on the principle that at high temperature, metal material has lowered yield stress and raised plasticity. The forming machine consists of mold seat, side molds, bottom mold, pressure conducting duct and heater. The hot pressing and blowing process for forming metal bottle includes: fixing the bottle blank inside the mold cavity with sealed pressure conducting duct; heating the bottle blank with the heater to the forming temperature and intruding pressure gas into the bottle blank for the bottle blank to be formed into the required shape. The process of the present invention is suitable for forming various kinds of metal containers, including complicated ones, and the formed metal container has homogeneous wall thickness and smooth transition.

Description

Technical field [0001] The metal bottle hot pressure blowing method is a metal container forming method. It utilizes the principle that the yield stress of the metal material is reduced at high temperature and the plasticity is enhanced, and the process of forming the heated metal preform in a closed mold at one time is adopted by high pressure. This invention ensures that the metal preforms can be formed smoothly under proper temperature and pressure to prevent the bottles from bursting. The formed metal container can be widely used in civil and industrial packaging such as beverages, wines, cosmetics and the like. It has the characteristics of pressure resistance, pressure resistance and easy recycling. Background technique [0002] At present, the manufacturing of two-piece metal containers (container and container lid) mainly adopts the process of stamping and forming. The formed container is limited to a cylindrical shape with a single shape (such as a pop can), and t...

Claims

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Application Information

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IPC IPC(8): B21D26/02
Inventor 谢靖佳
Owner 谢靖佳
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