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Aluminum alloy gas bottle and processing method thereof

An aluminum alloy and gas cylinder technology, applied in fixed-capacity gas storage tanks, gas/liquid distribution and storage, anti-corrosion coatings, etc., can solve the problems of high cost and complex process, and achieve low manufacturing cost, simple process, good resistance Effects of Oxidative Stability

Active Publication Date: 2016-03-09
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing technology is complex and costly

Method used

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  • Aluminum alloy gas bottle and processing method thereof
  • Aluminum alloy gas bottle and processing method thereof
  • Aluminum alloy gas bottle and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Treatment of the inner wall of aluminum alloy gas cylinders:

[0076] The mass ratio of the methylphenyl silicone resin and the curing agent is 10:1, and the liquid methylphenyl silicone resin and the curing agent are mixed to obtain a mixture. Pour the above mixture into an aluminum alloy gas cylinder so that the amount of the mixture is 2 / 3 of the volume of the aluminum alloy gas cylinder, and let stand for 30 seconds. The mixture was poured out from the aluminum alloy gas cylinder, and the mixture was covered with the entire inner wall of the aluminum alloy gas cylinder during the pouring process, and the aluminum alloy gas cylinder was turned upside down, and dried in the air at 15°C. Put the air-dried aluminum alloy gas cylinder in an oven, perform curing treatment at 120°C for 2 hours, and then cool it naturally to obtain an aluminum alloy gas cylinder coated with a cured methylphenyl silicone resin coating on the inner wall . H 2 S concentration is that the mi...

Embodiment 2

[0080] Treatment of the inner wall of aluminum alloy gas cylinders:

[0081] The mass ratio of the methylphenyl silicone resin and the curing agent is 10:1, and the liquid methylphenyl silicone resin and the curing agent are mixed to obtain a mixture. Pour the above mixture into an aluminum alloy gas cylinder so that the amount of the mixture is 70% of the volume of the aluminum alloy gas cylinder, and let it stand for 60 seconds. The mixture is poured out from the aluminum alloy gas cylinder. During the pouring process, the mixture is covered with the entire inner wall of the aluminum alloy gas cylinder, and the aluminum alloy gas cylinder is turned upside down, and dried in an environment of 20°C. Put the air-dried aluminum alloy gas cylinder in an oven, perform curing treatment at 100°C for 3 hours, and then cool it naturally to obtain an aluminum alloy gas cylinder coated with a cured methylphenyl silicone resin coating on the inner wall . H 2 S concentration is that th...

Embodiment 3

[0085] Treatment of the inner wall of aluminum alloy gas cylinders:

[0086] The mass ratio of the methylphenyl silicone resin and the curing agent is 10:1, and the liquid methylphenyl silicone resin and the curing agent are mixed to obtain a mixture. Pour the above mixture into an aluminum alloy gas cylinder so that the amount of the mixture is 80% of the volume of the aluminum alloy gas cylinder, and let stand for 40 seconds. The mixture is poured out from the aluminum alloy gas cylinder, and the mixture is covered with the entire inner wall of the aluminum alloy gas cylinder during the pouring process, and the aluminum alloy gas cylinder is turned upside down, and dried in the air at 40°C. Put the air-dried aluminum alloy gas cylinder in an oven, perform curing treatment at 110°C for 1 hour, and then cool it naturally to obtain an aluminum alloy gas cylinder coated with a cured methylphenyl silicone resin coating on the inner wall . H 2 S concentration is that the mixed ...

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Abstract

The invention discloses an aluminum alloy gas bottle and a processing method thereof, and belongs to the field of metal surface processing. The inner wall of the aluminum alloy gas bottle is coated with a cured methylphenyl silicone resin coating which is subjected to H2S gas passivating treatment, so that the cost is low; and the coating has the good chemical mediator resistance and anti-permeability, the aluminum alloy gas bottle is used for storing low-concentration H2S gas standard substance, H2S gas is effectively prevented from being absorbed by the inner wall of the gas bottle or reacting with the inner wall of the gas bottle, and the stability lasting time of the H2S gas standard substance is longer than one year.

Description

technical field [0001] The invention relates to the field of metal surface treatment, in particular to an aluminum alloy gas cylinder and a treatment method thereof. Background technique [0002] Petrochemicals usually H 2 S and other sulfide gases are used as gas standard substances for sample analysis. In the process of sample analysis, gas standard substances at trace level (μmol level) are often required to calibrate corresponding instruments. However, since H 2 The chemical properties of S are relatively lively, and it is easily absorbed or reacted by the inner wall of the gas cylinder during the process of being stored in the aluminum alloy pressure cylinder. This adsorption or reaction not only affects the change in the value of the gas standard substance, resulting in its poor stability, but also easily leads to indirect potential dangers. Therefore, in order to solve the problem of poor stability of the gas standard substance in the aluminum alloy gas cylinder a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C1/10C09D183/04C09D5/08
Inventor 李彦迟永杰向前秦吉罗勤
Owner PETROCHINA CO LTD