Die suitable for tape-casting of rear shell of mobile phone
A mobile phone back shell and tape casting technology, which is applied to ceramic molding machines, molds, manufacturing tools, etc., can solve problems such as product microcracks, cracks or wrinkles, product failure, etc., to achieve stable and reliable performance, improve pass rate, and raw materials The effect of using less
Active Publication Date: 2018-05-15
广东百工新材料科技有限公司
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Problems solved by technology
However, when forming a 3D shape product, the cast film is usually laminated on the mold and then subjected to warm isostatic pressing. It is easy to crack or wrinkle when debinding and sintering, and micro-cracks may occur inside the product after debinding and sintering, which will lead to product failure
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[0014] The idea, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features and effects of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to The protection scope of the present invention. In addition, all the connection / connection relationships mentioned in this article do not refer to the direct connection of components, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions. The various technical features in the invention can be combined interactively on the premise of not conflicting wi...
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Abstract
The invention discloses a die suitable for tape-casting of a rear shell of a mobile phone. The die comprises a female die, the female die is provided with a center boss and an edge forming face, and the edge forming face is provided with a membrane positioning part playing a role of positioning of tape-casting membrane dispersing in the temperature isostatic pressing process. The edge forming faceis further provided with a flow guiding part, one end of the flow guiding part is connected with the round corner of the center boss, and the other end of the flow guiding part extend outwards, so that redundant membranes at the round corners of the edge forming face are evenly dispersed on a protruding bar or a groove of the flow guiding part during temperature isostatic pressing. Through designof the flow guiding part and the membrane positioning part, the contact area of the membranes and the die is increased, and cracking or folding of the membranes at the four round corners of the female die in the product forming process is effectively avoided, so that the qualification rate of products is effectively improved. The 3D ceramic mobile phone rear shell prepared through the die is fewin machining allowance and stable and reliable in performance, the material cost and the rear end machining cost are greatly saved, application requirements in the field of mobile phones can be met, and large-scale mass production is achieved.
Description
technical field [0001] The invention relates to the technical field of 3D lamination manufacturing of ceramic materials, in particular to a mold suitable for tape-casting the back shell of a mobile phone. Background technique [0002] With the advent of the 5G and 6G era, if the mobile phone industry continues to use metal casings, the signal will be severely attenuated due to serious electromagnetic signal shielding; plastic casings are gradually eliminated due to poor hand feeling, non-wear resistance, and easy fading; glass casings Due to defects such as low strength, low hardness, low toughness, and poor hand feeling, there are also great risks and uncertainties as a mobile phone back cover. Compared with metal, plastic, polymer and glass materials, ceramic materials have high strength, high hardness, oxidation resistance, and good hand feeling, especially zirconia ceramics have excellent properties such as high toughness, making ceramic mobile phone casings gradually be...
Claims
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IPC IPC(8): B28B7/00
CPCB28B7/0097Y02A30/00
Inventor 余明先孙亮张耀辉
Owner 广东百工新材料科技有限公司