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Manufacturing method of ultra thin-walled light metal alloy housing or frame

A technology of an alloy frame and a manufacturing method, which is applied to the manufacturing field of an ultra-thin-walled light metal alloy shell or frame, can solve the problems of high cost, different thermal stress, thermal deformation, etc., achieves strong hardness and impact resistance, and improves manufacturing qualification. efficiency, improve production efficiency

Inactive Publication Date: 2013-07-10
福建顶誉铸造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shortcomings of the traditional casting method of ultra-thin-walled light metal alloy shell or frame are: because the wall thickness of the shell or frame is too small, defects such as insufficient pouring and cold shut are prone to occur during the casting process, and after forming, due to poor heat dissipation conditions Uniform, the thermal stress generated at the thin wall is different from that at other connection transition positions, and it is easy to cause thermal deformation or cracking during cooling, which often requires subsequent correction processing, increasing the complexity of the process, making the pass rate of the product low, and the single piece Casting has low efficiency and high cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for manufacturing an ultra-thin aluminum alloy mobile phone casing, comprising the following steps:

[0016] ①According to the specific shape and size of the mobile phone shell, design a composite casting simulation model containing no less than two mobile phone shell monomers with a division processing allowance between the monomers through computer simulation software, and then make it according to the composite casting simulation model mold, and then install the finished mold on the die-casting machine;

[0017] ②The following raw materials are made into semi-solid slurry: by mass percentage, silicon 5%, zinc 3%, magnesium 0.3%, copper 2%, iron 0.1%, manganese 1%, titanium 0.1%, aluminum 88.5%; The prepared aluminum alloy semi-solid slurry is injected into the mold of the die-casting machine, and the semi-solid forming method is used to cast a composite casting containing two mobile phone shell monomers with a division processing allowance between the monome...

Embodiment 2

[0020] A method for manufacturing an ultra-thin magnesium alloy notebook computer casing, comprising the following steps:

[0021] ①According to the specific shape and size of the notebook computer shell, design a composite casting simulation model that includes no less than two notebook computer shell monomers with a division processing allowance between the monomers through computer simulation software, and then according to the composite casting simulation Make a mold from the model, and then install the finished mold on the die-casting machine;

[0022] ②The following raw materials are made into semi-solid slurry: in terms of mass percentage, aluminum 3%, zinc 2%, titanium 0.1%, manganese 0.9%, magnesium 94%; the prepared magnesium alloy semi-solid slurry is injected into die-casting In the mold of the machine, the semi-solid forming method is used to cast a composite casting consisting of two notebook computer shell monomers with a division machining allowance between the...

Embodiment 3

[0025] A method for manufacturing an ultra-thin aluminum alloy mobile phone frame, comprising the following steps:

[0026] ①According to the specific shape and size of the mobile phone frame, design a composite casting simulation model containing no less than two mobile phone frame monomers with a division processing allowance between the monomers through computer simulation software, and then make it according to the composite casting simulation model mold, and then install the finished mold on the die-casting machine;

[0027] ②The following raw materials are made into a semi-solid slurry: by mass percentage, silicon 10.5%, zinc 1%, magnesium 3%, copper 0.1%, iron 7%, manganese 0.2%, titanium 0.5%, aluminum 77.7%; The prepared aluminum alloy semi-solid slurry is injected into the mold of the die-casting machine, and a composite casting containing two mobile phone frame monomers with a division processing allowance left between the monomers is cast using a semi-solid forming...

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Abstract

The invention discloses a manufacturing method of an ultra thin-walled light metal alloy housing or frame. The method includes firstly, designing a composite casting simulation model comprising no less than two housing monomers or frame monomers with computer simulation software, and manufacturing a mould according to the composite casting simulation model, wherein segmentation processing allowance is reserved among the monomers; secondly, preparing light metal alloy semi-solid stuff, injecting the stuff into the mould of a casting machine, and casting a composite cast with a method of a semi-solid forming; and thirdly, manufacturing an ultra thin-walled light metal alloy housing or frame finished product through the processes of machining segmentation, finish machining and the like. According to the manufacturing method of the ultra thin-walled light metal alloy housing or frame, the manufacturing yield and the production efficiency of the ultra thin-walled light metal alloy housing or frame can be improved, the manufactured ultra thin-walled light metal alloy housing or frame has the advantages of light weight, low density, good heat dissipation, good hardness and impact resistance and the like, and the needs of 3C (Computer, Communication and Consumer Electronic) products can be perfectly met.

Description

technical field [0001] The invention relates to the technical field of manufacturing a light metal alloy shell or frame, in particular to a method for manufacturing an ultra-thin-walled light metal alloy shell or frame. Background technique [0002] There are generally two types of materials used for the casings or frames of laptops, mobile phones and other products on the market: one is light metal alloys, and the other is plastics. Due to the poor heat dissipation effect of plastics, it has been gradually eliminated, and light metal alloys, which have a thermal conductivity more than 150 times that of plastics, are rapidly becoming the mainstream materials for manufacturing casings or frames of notebook computers, mobile phones, digital cameras and other products. Light metal alloys have the following characteristics: light weight, low density, good heat dissipation, strong hardness and impact resistance, which can meet the requirements of high integration, lightness, mini...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/00C22C21/02C22C23/02
Inventor 曹海平陈亮王连登
Owner 福建顶誉铸造有限公司
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