Method for sealing shielding can

Abstract

The invention discloses a method for sealing a shielding can, comprising the following steps: providing a shielding can riveted with a connector, wherein an assembling gap is formed between the shielding can and the connector; providing an stannum ring with the shape corresponding to that of the gap; sheathing the stannum ring on the connector to cover the gap between the shielding can and the connector; providing a radio frequency heater connected with an inductance coil; preparing the inductance coil into a shape corresponding to that of the stannum ring; and sheathing the connector in the inductance coil, positioning the stannum ring below the inductance coil, and leading the stannum ring to lean a certain angle relative to the inductance coil, thus the strength of magnetic fields generated by the inductance coil at a region at which the stannum ring is positioned to be almost same. The radio frequency heater electrifies the inductance coil to generate a magnetic field; and the inductance coil is heated and molten in the magnetic field to fill the gap. The method for sealing the shielding can of the invention has good sealing effect and higher qualification rate and production efficiency.

Description

technical field [0001] The present invention relates to a mechanical processing method, and more particularly relates to a shielding cover sealing method. Background technique [0002] With the continuous acceleration of the process of social informatization, various information appliances such as set-top boxes, mobile phones, etc. are continuously put on the market. The shielding case used in various information appliances is usually connected with at least one connector, and the connector is generally fixed on the shielding case by riveting, so gaps inevitably appear at the connection between the connector and the shielding case. In order to realize the airtightness of the shielding case and ensure its better shielding capability, it is necessary to perform sealing treatment on the connection gap after the connector is fixed to the shielding case. The existing sealing treatment generally adopts the following two methods: [0003] One kind of sealing method is purely manu...

AI Technical Summary

Problems solved by technology

Although this sealing method can relatively improve production efficiency, since the solder is made of solder paste, it is prone to uneven spot coating, which makes the welding surface uneven or incompletely sealed, and the qualified rate is low.

In addition, in this processing method, the entire shielding cover is placed in the furnace body of the assembly line for transmission, and the entire shielding cover is in a heated state for a long time, which is prone to magnetization, and the tin material placed at the weld seam flows down due to the action of gravity, which further leads to Uneven distribution of tin material reduces the qualified rate

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