Machining method of metal middle frame, metal middle frame and mobile terminal

A metal middle frame and processing method technology, which is applied in the direction of telephone structure, telephone communication, electrical components, etc., can solve the problems of bending deformation of the middle frame, affecting the forming quality of the middle frame, etc., to reduce the mechanical strength, ensure the forming quality, and improve the Anti-bending effect

Active Publication Date: 2018-10-16
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Problems solved by technology

[0002] In mobile terminals such as mobile phones, when the middle plate on the middle frame is formed by die-casting process, the middle plate w

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  • Machining method of metal middle frame, metal middle frame and mobile terminal
  • Machining method of metal middle frame, metal middle frame and mobile terminal
  • Machining method of metal middle frame, metal middle frame and mobile terminal

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[0018] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or a central element may also exist. When an element is considered to be "connected" to another element, it can be directly connected to the other element or an intermediate element may be present at the same time. The terms "inner", "outer", "left", "right" and similar expressions used herein are for illustrative purposes on...

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Abstract

The invention relates to a machining method of a metal middle frame, a metal middle frame and a mobile terminal. The machining method of the metal middle frame comprises the following steps that a plurality of connecting sections is provided; the connecting sections is arranged in a die-casting die at intervals, and the plurality of connecting sections define an annular frame with a gap; molten aluminum liquid is injected into the cavity of the die-casting die and fills the cavity of the die-casting die through a die-casting treatment technology, wherein part of the molten aluminum liquid is solidified to form a middle plate which is integrally formed with the connecting sections, and the rest of the molten aluminum liquid fills the gap and is solidified to form a filled aluminum material;and surface treatment is carried out on the frame and the filled aluminum material. Due to the fact that the connecting sections are placed in the cavity of the die-casting die at intervals, the tensile stress generated by the filled aluminum material located in different gaps in the cooling and forming process is counteracted mutually; and defects of bending deformation and the like caused by unbalanced stress of the frame formed after the connecting sections are connected through the filled aluminum material are avoided, so that the forming quality of the whole metal middle frame is ensured.

Description

technical field [0001] The present invention relates to the technical field of mobile terminals, in particular to a metal middle frame processing method, a metal middle frame and a mobile terminal including the metal middle frame. Background technique [0002] In mobile terminals such as mobile phones, when the middle plate on the middle frame is formed by a die-casting process, the middle plate will bend and deform the entire middle frame during the cooling and solidification process, thereby affecting the molding quality of the middle frame. Contents of the invention [0003] A technical problem solved by the invention is how to improve the molding quality of the metal middle frame. [0004] A method for processing a metal middle frame, comprising the steps of: [0005] Provide several connecting segments; [0006] The connecting sections are arranged at intervals in the die-casting mold, and the several connecting sections surround a ring-shaped frame with gaps; [0...

Claims

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Application Information

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IPC IPC(8): B22D19/00B22D19/16B22D17/00H04M1/02
CPCB22D17/00B22D19/00B22D19/16H04M1/026
Inventor 包小明
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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