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A kind of aluminum alloy petroleum liquefied gas bottle body and preparation method thereof

A technology for petroleum liquefied gas and liquefied gas cylinders, which is used in gas/liquid distribution and storage, mechanical equipment, fluid handling, etc. The effect of preventing corrosion, improving service life and reducing the weight of the bottle

Active Publication Date: 2020-09-15
KUNMING METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Poor manufacturing process will cause the wall thickness difference of the container bottle to be too large, and the quality difference of the whole gas cylinder is very large. Similarly, if the temperature control is not good when the bottom is closed by hot spinning in the mass production process, the bottom of the gas cylinder will be damaged. Air leakage, leaving a major safety hazard

Method used

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  • A kind of aluminum alloy petroleum liquefied gas bottle body and preparation method thereof
  • A kind of aluminum alloy petroleum liquefied gas bottle body and preparation method thereof

Examples

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Effect test

preparation example Construction

[0024] The preparation method of the aluminum alloy liquefied petroleum gas cylinder of the present invention specifically comprises:

[0025] A. Blank heat treatment: Cut the raw material into a disc-shaped structural blank 8, put the blank 8 into a heating furnace and heat it to 200°C~450°C, and the heating and holding time is 30min~100min;

[0026] B. Blank stamping and stretching: the blank 8 is placed between the upper drawing die 10 and the lower drawing die 11, and the stamping and stretching method is used to stamp and stretch the heated blank through the extrusion head 9 of the hydraulic press to become The rough blank 12 of the "U" shaped bottle (that is, the rough blank of the upper bottle body 3 and the lower bottle body 4);

[0027] C. Solid solution aging treatment of the rough body of the bottle body: the rough body of the bottle body 12 (that is, the rough body of the upper bottle body 3 and the rough body of the lower bottle body 4) is first subjected to a sol...

Embodiment 1

[0039] Example 1: 1) Calculate the raw material size required for the preparation according to the size of the petroleum liquefied gas cylinder to be prepared, and cut the aluminum alloy round bar ingot into a disc-shaped structural blank 8 of the required thickness according to the calculated size. The diameter of 8 is 100mm~700mm;

[0040] 2) Put the cut blank 8 into a heating furnace with a furnace temperature of 200°C~450°C and heat for 30min~100min;

[0041] 3) Apply lubricant to the extrusion head 9 of the extruder, the outside of the heated billet 8, the inner walls of the upper drawing die 10 and the lower drawing die 11, and then put the billet 8 on the upper drawing die 10 Between the upper drawing die 10 and the lower drawing die 11, press the outer edge of the billet 8 with the lower drawing die 11, and then press the central part of the billet 8 that has been heated by the extrusion head 9 by the stamping method. Stamping-stretching, the extrusion head 9 is kept ...

Embodiment 2

[0046] Example 2: 1) Calculate the raw material size required for the preparation according to the size of the liquefied petroleum gas cylinder to be prepared, and cut the aluminum alloy round bar ingot into a disc-shaped structural blank 8 of the required thickness according to the calculated size. The diameter of 8 is 100mm~700mm;

[0047] 2) Put the cut blank 8 into a heating furnace with a furnace temperature of 200°C~450°C and heat for 30min~100min;

[0048] 3) Apply lubricant to the extrusion head 9 of the extruder, the outside of the heated billet 8, the inner walls of the upper drawing die 10 and the lower drawing die 11, and then put the billet 8 on the upper drawing die 10 Between the upper drawing die 10 and the lower drawing die 11, press the outer edge of the billet 8 with the lower drawing die 11, and then press the central part of the billet 8 that has been heated by the extrusion head 9 by the stamping method. Stamping-stretching, the extrusion head 9 is kept ...

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Abstract

The invention discloses an aluminium alloy petroleum liquefied gas bottle body and a preparing method thereof. The aluminium alloy petroleum liquefied gas bottle body comprises a lifting handle, a bottle main body, a base and a valve, an installing hole is formed in the top of the bottle main body and is provided with the valve, the lifting handle is arranged at the position, outside the valve, ofthe bottle main body, the valve is half surrounded by the lifting handle, the base is arranged at the bottom of the bottle main body, the bottle main body comprises an upper bottle body and a lower bottle body, opening parts of the upper bottle body and the lower bottle body are subjected to butt welding to form the bottle main body, the size of the upper bottle body and the size of the lower bottle body are coincident, and a valve hole is formed in the top of the upper bottle body. The preparing method of the aluminium alloy petroleum liquefied gas bottle body comprises the steps of A, blankheat treatment, B, blank stamping and stretching, C, bottle body rough blank solid solution aging treatment, D, semi-finished bottle body welding assembling and E, finished bottle body performance detection. The bottle body prepared through the method is resistant to corrosion and high in pressed force; and compared with the prior art, the manufacturing technology of the gas bottle body is reduced, the production efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of production and manufacture of liquefied petroleum gas cylinders, and in particular relates to a lightweight and safe aluminum alloy liquefied petroleum gas cylinder body with extended service life and a preparation method thereof. Background technique [0002] As a common fuel, liquefied petroleum gas is widely used in various fields with the advantages of convenience, speed and cleanliness, and plays an important role in life and production. Correspondingly, the development of pressure vessels filled with compressed natural gas is particularly necessary. Due to the flammable and explosive characteristics of natural gas, the requirements for the airtightness of the containers are very high. Poor manufacturing process will cause the wall thickness difference of the container bottle to be too large, and the quality difference of the whole gas cylinder is very large. Similarly, if the temperature control is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C1/14B21D51/24
CPCB21D51/24F17C1/14F17C2201/032F17C2201/058F17C2203/0648F17C2203/0653F17C2209/2181F17C2209/221F17C2223/0153
Inventor 胥福顺岳有成谭国寅田怡李恒孙彦华陈劲戈曹瑞珂
Owner KUNMING METALLURGY INST
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