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A kind of processing method of high-end smartphone titanium alloy nut

A smart phone and processing method technology, applied in the field of nut processing, can solve the problems of difficult processing and production, low production pass rate of high-end smart phone titanium alloy nuts, etc., achieve high production pass rate, solve processing production difficulties, and improve toughness

Inactive Publication Date: 2016-08-24
贵州顶效经济开发区沈兴实业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the above technical problems, the object of the present invention is to provide a processing method for high-end smart phone titanium alloy nuts, which solves the problems of low production pass rate and difficult processing and production of high-end smart phone titanium alloy nuts.

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Embodiment 1

[0031] Embodiment 1, the present invention is a kind of processing method of high-end smartphone titanium alloy nut, comprises the following steps:

[0032] 1) Vacuum smelting: TC4ELI titanium alloy is smelted three times in a vacuum consumable electric arc furnace through material distribution, piezoelectric electrodes, and smelting process control. The leather is polished, and the deep cracks are cleaned by manual grinding to ensure that these defects will not be wrapped in the material in the next process or the area of ​​the defects will be enlarged to reduce the yield of finished products;

[0033] Among them, the composition content of TC4ELI titanium alloy is calculated by mass fraction: iron (Fe) ≤ 0.30%, carbon (C) ≤ 0.10%, nitrogen (N) ≤ 0.05%, hydrogen (H) ≤ 0.015%, oxygen (O) ≤0.20%, aluminum (Al) ≤5.5-6.8%, vanadium (V) ≤3.5-4.5%, the rest is titanium (Ti);

[0034] 2) Forging: The TC4ELI titanium alloy ingot after 3 times of vacuum melting is opened and forged a...

Embodiment 2

[0046] Embodiment 2, the present invention is a kind of processing method of high-end smartphone titanium alloy nut, comprises the following steps:

[0047] 1) Vacuum smelting: TC4ELI titanium alloy is smelted three times in a vacuum consumable electric arc furnace through material distribution, piezoelectric electrodes, and smelting process control. The leather is polished, and the deep cracks are cleaned by manual grinding to ensure that these defects will not be wrapped in the material in the next process or the area of ​​the defects will be enlarged to reduce the yield of finished products;

[0048] In order to ensure the uniformity of alloy composition, the content of various impurity elements, especially O, N, H and Fe, etc. should be precisely controlled. Among them, the composition content of TC4ELI titanium alloy is calculated by mass fraction: 0.15≤iron (Fe)≤0.25%, Carbon (C)≤0.10%, Nitrogen (N)≤0.003%, Hydrogen (H)≤0.005%, Oxygen (O)≤0.02%, Aluminum (Al)≤5.5~6.8%, V...

Embodiment 3

[0061] Embodiment 3, the present invention is a kind of processing method of high-end smartphone titanium alloy nut, comprises the following steps:

[0062] 1) Vacuum smelting: TC4ELI titanium alloy is smelted three times in a vacuum consumable electric arc furnace through material distribution, piezoelectric electrodes, and smelting process control. The leather is polished, and the deep cracks are cleaned by manual grinding to ensure that these defects will not be wrapped in the material in the next process or the area of ​​the defects will be enlarged to reduce the yield of finished products;

[0063] In order to facilitate the smooth progress of the nut processing process, the content of various impurity elements, especially Fe, should be precisely controlled. Among them, the content of the TC4ELI titanium alloy is calculated by mass fraction: 0.10% ≤ iron (Fe) ≤ 0.20%, carbon (C) ≤ 0.10%, nitrogen (N)≤0.003%, hydrogen (H)≤0.005%, oxygen (O)≤0.02%, aluminum (Al)≤5.5~6.8%, v...

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Abstract

The invention relates to a processing method for a high-end smart phone titanium alloy nut, belonging to the technical field of nut processing. It includes the following steps: vacuum melting, forging, turning, rolling, stretching and rounding, mechanical surface treatment, stretching, annealing, broaching, straightening, polishing, drawing, turning, tapping. The present invention strictly controls the content of interstitial elements C, O, N and impurity element Fe, significantly improves the toughness of nuts, and the nuts produced by this method have better plasticity, toughness, good welding performance and low-temperature use performance, and its The combination of mechanical processing and manual processing ensures the quality of the product and improves the production efficiency of the product. It has the advantages of high production pass rate and high production efficiency, and solves the problems of difficult processing and production.

Description

technical field [0001] The invention relates to a processing method for a high-end smart phone titanium alloy nut, belonging to the technical field of nut processing. Background technique [0002] According to the material classification, mobile phone nuts are divided into two types: mobile phone copper nuts and mobile phone stainless steel nuts. Mobile phone copper nuts generally use C3604 brass and HPB59 series brass, and mobile phone stainless steel nuts generally use SUS303 or SUS304 stainless steel. TC4ELI titanium alloy material has a series of advantages such as low density, high strength, excellent corrosion resistance, toughness and weldability, and is widely used in aerospace, petrochemical, shipbuilding, automobile, medicine, electronics and other departments. [0003] The titanium alloy mobile phone nut has just been developed in recent years. It has the advantages of anti-corrosion, non-magnetic, and high strength; it has been used by iPhone5 and iPhone5S mobile...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C14/00B23P15/00
Inventor 陈文
Owner 贵州顶效经济开发区沈兴实业有限责任公司
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