Titanium alloy used for foldable bicycle frame and preparation method of titanium alloy

A technology of folding bicycles and titanium alloys, applied in the field of titanium alloys, can solve the problems that the comprehensive performance of alloy materials needs to be strengthened, and achieve the effects of strong noise reduction and shock absorption, good comprehensive performance and good quality

Inactive Publication Date: 2015-11-04
TAICANG JUNHAO BICYCLE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the overall performance of the alloy material of the folding bicycle frame needs to be strengthened

Method used

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  • Titanium alloy used for foldable bicycle frame and preparation method of titanium alloy

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Experimental program
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Effect test

Embodiment 1

[0018] A titanium alloy for a foldable bicycle frame, the main elements of the titanium alloy are: 0.2-4.0% of zirconium element, 0.5-1.2% of magnesium element, 2-3% of iron element, 0.3-0.5% of silicon element, Manganese element 0.2~0.5%, aluminum element 0.2~0.3%, the balance is titanium and unavoidable impurities. Impurities include phosphorus, sulfur, and selenium. Phosphorus element≤0.1%, sulfur element≤0.1%, selenium element≤0.1%.

[0019] The main elements of titanium alloy are: 2.1% zirconium, 0.8% magnesium, 2.5% iron, 0.4% silicon, 0.35% manganese, 0.25% aluminum, and the balance is titanium and unavoidable impurities.

[0020] A method for preparing a titanium alloy for a foldable bicycle frame, comprising the following steps:

[0021] 1) Weigh titanium alloy, aluminum-silicon alloy, and magnesium-zirconium alloy as raw materials according to weight percentage, add them to the melting furnace and heat at 850~900°C to melt all the materials in the melting furnace. ...

Embodiment 2

[0029] A titanium alloy for a foldable bicycle frame, the main elements of the titanium alloy are: 0.2% zirconium element, 0.5% magnesium element, 2% iron element, 0.3% silicon element, 0.2% manganese element, 0.2% aluminum element %, the balance is titanium and unavoidable impurities. Impurities include phosphorus, sulfur, and selenium. Phosphorus 0.1%, sulfur 0.1%, selenium 0.1%.

[0030] A method for preparing a titanium alloy for a foldable bicycle frame, comprising the following steps:

[0031] 1) Weigh titanium alloy, aluminum-silicon alloy, and magnesium-zirconium alloy as raw materials according to weight percentage, add them to the melting furnace and heat them at 850°C to melt all the materials in the melting furnace. The melting time is 8 hours, and add phosphorus removal agent and desulfurization agent at the same time Remove sulfur and phosphorus elements;

[0032] 2) Pass N into the melting furnace 2 -Cl 2 The mixed gas was refined for 6 minutes at a temper...

Embodiment 3

[0039] A titanium alloy for a foldable bicycle frame, the main elements of the titanium alloy are: 4.0% zirconium, 1.2% magnesium, 3% iron, 0.5% silicon, 0.5% manganese, and 0.3% aluminum %, the balance is titanium and unavoidable impurities. Impurities include phosphorus, sulfur, and selenium. Phosphorus 0.03%, sulfur 0.02%, selenium 0.01%.

[0040] A method for preparing a titanium alloy for a foldable bicycle frame, comprising the following steps:

[0041] 1) Weigh titanium alloy, aluminum-silicon alloy, and magnesium-zirconium alloy as raw materials according to weight percentage, add them to the melting furnace and heat at 900°C to melt all the materials in the melting furnace. The melting time is 6 hours, and add phosphorus removal agent and desulfurization agent at the same time Remove sulfur and phosphorus elements;

[0042] 2) Feed N into the melting furnace 2 -Cl 2 The mixed gas is refined for 5 minutes at a temperature of 900°C to obtain a melt;

[0043] 3) P...

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PUM

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Abstract

The invention discloses titanium alloy used for a foldable bicycle frame. The titanium alloy is composed of bode elements including 0.2-4.0% of zirconium, 0.5-1.2% of magnesium, 2-3% of iron, 0.3-0.5% of silicon, 0.2-0.5% of manganese, 0.2-0.3% of aluminum and the balance titanium and inevitable impurities. The invention further discloses a preparation method of the titanium alloy used for the foldable bicycle frame. Magnesium-zirconium alloy, titanium alloy and aluminum-silicon alloy are selected to be smelted, the magnesium-zirconium alloy has a very high shock absorption function and has noise reduction capacity, and therefore the obtained titanium alloy is high in strength, plasticity and other comprehensive performance, high in corrosion resistance, not prone to deformation, high in bearing capacity and high in noise reduction and shock absorption capacity. According to the preparation method, impurities in the titanium alloy are removed through a phosphorus removing agent and a desulfurizing agent, and therefore the titanium alloy serving as the foldable bicycle frame is better in quality and better in noise and shock absorption reduction performance.

Description

technical field [0001] The invention belongs to the technical field of titanium alloys, in particular to a titanium alloy for a foldable bicycle frame and a preparation method thereof. Background technique [0002] Generally, a folding bike is composed of a frame folding joint and a riser folding joint. By folding the frame, the front and rear wheels can be folded together, which can reduce the length by about 45%. After being folded, the whole vehicle can be put into the cabin and folding bag, as well as the trunk of the car. During the folding process, the car can be folded and unfolded manually without the help of external tools. After folding, use the seat post as a support point so that it can stand firmly after folding. The folding bicycle is portable, convenient and comfortable to use. However, the overall performance of the alloy material of the current folding bicycle frame needs to be strengthened. Especially for shock absorption and noise reduction, easy fold...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C1/03C22C1/06
Inventor 肖建明
Owner TAICANG JUNHAO BICYCLE TECH CO LTD
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