Machining technology of novel special-shaped material special for titanium alloy mobile phone SIM card tray

Abstract

The invention discloses a machining technology of a novel special-shaped material special for a titanium alloy mobile phone SIM card tray. The technology is characterized in that a titanium alloy barmaterial is subjected to continuously circulating twelve times of rolling and heat treatment, the rolling process adopts a pair of rollers to roll the titanium alloy bar material, annular protrusionsand annular recesses are arranged on the two rollers of the pair of the rollers on the pair of the rollers, the annular protrusions and the annular recesses are arranged in a fit mode, and the annularprotrusions and the annular recesses and the rollers are arranged concentrically; and the heat treatment adopts a tubular furnace, the heat treatment temperature is 600+ / -20 DEG C, the length of thetubular furnace is 6 meters, and the speed of the titanium alloy bar material passing through the tubular furnace is 3 m / min. According to machining technology, the mode that a CNC machine is adoptedto machine in the past is replaced with rolling, the labor is saved, the material is saved, the time is saved, the problem that TC4 titanium alloy is difficult to machine and form is solved through the mode of the many-time rolling and heat treatment, the mobile phone SIM card tray special-shaped material is formed through rolling, the machining amount of subsequently engraving and machining the mobile phone SIM card tray special-shaped material into the mobile phone SIM card tray is reduced, and the novel special-shaped material made of the TC4 titanium alloy special for the SIM card tray islarge in specific strength and free of magnetism.

Description

technical field [0001] The invention relates to a processing technology of a special-shaped special-shaped material for a titanium alloy mobile phone SIM card holder. Background technique [0002] The card slots (such as SIM card trays, memory card trays) and buttons (such as volume keys, shutdown keys) in traditional mobile phones are mostly made of plastic materials. In order to increase their appearance and metal texture, they are coated with a However, due to its low strength and poor wear resistance, it is easily damaged or faded due to wear and tear during use. With the increasingly thinner design requirements of mobile phones, in order to realize the light and thin design concept, the SIM card tray structure is generally used to replace the design of the SIM card or memory card. After replacing the SIM card or memory card for a certain number of times, the SIM card slot may have problems such as poor elasticity of the contact pin or looseness of the card slot, which ...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects in the prior art and provide a processing technology for a special-shaped material for a titanium alloy mobile phone SIM card tray, abandoning the previous method of CNC machining and using rolling instead, saving labor and materials It saves time, and also solves the problem that TC4 titanium alloy is difficult to process and difficult to form. It is rolled to form a special-shaped mobile phone SIM card tray, which reduces the amount of subsequent engraving and processing into a mobile phone SIM card tray. The SIM card tray made of TC4 titanium alloy is dedicated The new special-shaped material has high specific strength and is non-magnetic

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