A kind of manufacturing process of waterproof mobile phone back shell
A manufacturing process and back shell technology, applied in the field of mobile phone back shell manufacturing process, can solve problems such as unsatisfactory waterproof effect, inability to achieve waterproof effect, poor waterproof performance, etc.
Active Publication Date: 2020-08-04
FUJIAN SHISHI TONGDA ELECTRICAL APPLIANCE
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Problems solved by technology
However, the waterproof performance of aluminum mobile phone cases is poor. In order to meet the waterproof function requirements of mobile phones, most of them use waterproof glue, sealing rings or plastic parts to prevent water seepage at the junction. commonly used
However, the waterproof effect of this combined metal shell is still relatively unsatisfactory, and the existing waterproof effect cannot be achieved.
Method used
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Embodiment Construction
[0020] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific examples.
[0021] A manufacturing process of a waterproof mobile phone back shell of the present invention, such as figure 1 As shown, it includes the aluminum shell CNC rough machining process, T treatment process, NMT nano-injection molding process, CNC finishing process, functional hole CNC processing process, oxidation treatment process, high-gloss process and assembly test process. Among them, the aluminum shell molding The processing process is to process the aluminum material to form a shell that matches the shape of the back shell of the mobile phone. This process adopts a well-known and commonly used method. The CNC rough machining process of the aluminum shell mainly includes the first step of machining the flying plane and the three positioning holes. The first CNC machining, the second CNC machining of the rou...
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Abstract
The invention discloses a method for manufacturing a waterproof mobile phone back shell. The method comprises an aluminum housing moulding and machining procedure, an aluminum housing CNC machining procedure, a T treatment procedure, an NMT nano injection moulding procedure, an oxidative treatment procedure and an assembly testing procedure and further comprises a groove CNC machining procedure; an aperture of a nano hole formed in the T treatment procedure is 35-45 [mu]m; an injection moulding material is a PBT material having a bonding strength of 28 MPa and a glass fiber reinforcement smaller than 36%; and the injection moulding mould is provided with four glue injection ports. It is concluded by an inventor via experimental research and development that in combination with improvementsin six aspects such as the structural improvement in the aluminum housing, the increased improvement of the nano hole in the T treatment, the improvement in properties of the injection moulding material, the improvement in injection moulding mould and injection moulding process, and the improvement in secondary oxidation of the oxidative treatment, the waterproof level of the moulded mobile phoneback shell can be up to 8 level, the waterproof performance is excellent, and the waterproof function of the existing high-end intelligent mobile phone can be met.
Description
technical field [0001] The invention relates to a manufacturing process of a mobile phone, in particular to a manufacturing process of a mobile phone back case with good waterproof effect. Background technique [0002] Metal has been a favorite appearance material for human beings since ancient times. It has been widely used in the casing of mobile phones because of its beautiful appearance, especially the aluminum material has been widely promoted. However, the waterproof performance of aluminum mobile phone cases is poor. In order to meet the waterproof function requirements of mobile phones, most of them use waterproof glue, sealing rings or plastic parts to prevent water seepage at the junction. commonly used. However, the waterproof effect of this combined metal shell is still relatively unsatisfactory, and cannot achieve the existing waterproof effect. [0003] In view of this, the inventor has carried out in-depth research on the above-mentioned problem, and then pr...
Claims
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IPC IPC(8): H04M1/02H04M1/18B29C45/26B29C45/27B29C45/14B29C45/77B29C45/78
CPCB29C45/0001B29C45/0005B29C45/14B29C45/26B29C45/2725B29C45/77B29C45/78B29C2045/14868B29C2945/76498B29C2945/76531H04M1/026H04M1/18
Inventor 肖晖林克军谭永帅
Owner FUJIAN SHISHI TONGDA ELECTRICAL APPLIANCE