Forming manufacturing method for waterproof silica gel sealing ring of metal card tray

Abstract

The invention relates to the technical field of metal card tray manufacturing, in particular to a forming manufacturing method for a waterproof silica gel sealing ring of a metal card tray. The methodincludes the steps that the metal card tray is provided at first and further has a waterproof silica gel sealing ring forming area and a non-forming area; then the junction of the waterproof sealingring forming area and the non-forming area of the metal card tray is at least blocked or coated with a silica gel releasing agent; afterwards, the obtained metal card tray is put into a forming die, and a liquid-state silica gel sealing ring achieves injection molding on the metal card tray through the forming die; and finally the metal card tray is taken out of the forming die, the periphery of the silica gel sealing ring on the metal card tray is treated, and thus the metal card tray with the waterproof silica gel sealing ring can be obtained. By adoption of the method, the periphery of theobtained silica gel sealing ring can be treated easily and conveniently, rough edges even can be avoided, the requirement for injection molding of the liquid-state silica gel sealing ring on the metalcard tray is met, and meanwhile the problems of silica gel rough edges and the like are effectively solved; and the technology is simple, production efficiency is improved, the rate of finished products is high and production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of metal card holder production, in particular to the production of a metal card holder waterproof sealing ring. Background technique [0002] With the continuous development of terminal technology, mobile communication terminals such as smart phones and tablet computers are more and more widely used. Generally, SIM cards need to be installed in terminals such as mobile phones. At present, different mobile communication terminals adopt different SIM card insertion methods. For example, some terminals need to open the back cover (and battery) of the terminal, and install the SIM card at the reserved SIM installation position. The operation of the SIM card is relatively cumbersome; some terminals are equipped with a SIM card holder that can be pushed out, and the SIM card holder can be taken out through the ejection mechanism by using the principle of leverage. In order to achieve an all-metal appearance for ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, to provide a method for forming a waterproof silicone seal ring on a metal card holder, to achieve injection molding of a liquid silicone seal ring on a metal card holder, and to effectively solve problems such as silicone burrs

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