Method for confirming gas content in high-viscosity liquid

A technology with gas content and high viscosity, applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as the inability to use pressure detection, and achieve the effects of stable and reliable implementation, cost reduction, and improvement of foaming ratio.

Pending Publication Date: 2021-07-13
DALIAN HUAGONG INNOVATION TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0009] The invention discloses a method for confirming the gas content in a high-viscosity liquid, which overcomes the current situation that the existing detection device can only use acoustic testing means to detect the bubble content and cannot use pressure detection, and uses a pressure s

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  • Method for confirming gas content in high-viscosity liquid
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  • Method for confirming gas content in high-viscosity liquid

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Embodiment Construction

[0026] The present invention discloses a detection device for a gas content in a high viscosity liquid, referred to as a detection device, see figure 1 The gas content used to detect the high viscosity liquid in the welding system is mainly used for dual component or single component high viscosity liquid, such as polyurethane, adhesive, thermal melt glue, in high viscosity liquid or known A high viscosity liquid containing a chemical foaming agent or a physical blowing agent is added to the auxiliary foaming effect, which can obtain a higher foaming magnification product, and the gas does not affect the processing conditions, reduce the cost of the article.

[0027] How to detect the above gas content, there has been no better solution, if there is too much or too little gas, the performance of the product is inevitably affected, how to detect the confirmation gas content, especially the dynamic detection, can obtain better performance products .

[0028] The structure and interc...

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Abstract

The invention relates to a method for confirming the gas content in high-viscosity liquid, which comprises the following steps of: detecting and recording the pressure change value of the high-viscosity liquid in a cavity before and after the movement of a guide rod through a pressure sensor, and detecting and recording the density change value corresponding to the high-viscosity liquid flowing out of an output port when the pressure change value is detected and recorded by a densimeter; establishing a pressure and density function relation model by using the pressure and density change values, and generating a functional expression in which the X axis is pressure and the Y axis is density y=bx+c; and calculating and recording a gas content change value by adopting the density change difference value, establishing a pressure and gas content function relation model by utilizing the pressure and gas content change value, and generating a functional expression y=bx+c, in which the X axis is the pressure and the Y axis is the gas content. According to the invention, the pressure change value of the high-viscosity liquid in the cavity before and after the movement of the guide rod detected by the pressure sensor is used as an electric signal to calibrate the gas content in the cavity, and the relative content of the gas in the high-viscosity liquid in the cavity is indirectly detected by combining the programmable technology of the control device.

Description

Technical field [0001] The present invention relates to a gas content confirmation method in a high viscosity liquid for detecting a gas content in a high viscosity liquid, mainly used for dual component or single component high viscosity liquid such as polyurethane, adhesive, hot melt glue. Dynamic gas content detection. Background technique [0002] The two-component polyurethane, adhesive, hot melt adhesive, etc. in high molecular resin materials are all high viscosity liquid foam articles, mainly by chemical foaming or physical foaming methods, add foams in raw materials. When the agent, the reaction is carried out to obtain the article. However, the foaming magnification of chemical foaming or physical foam is limited, or the raw material defines a product that cannot obtain a higher foaming magnification. If the gas can be mixed into a high viscosity liquid by mechanically stirring in the raw material, a quantity is added. Gas, achieving chemical foaming or physical foaming...

Claims

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Application Information

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IPC IPC(8): G01N33/00
CPCG01N33/0062
Inventor 韩旭韩毅军常少文
Owner DALIAN HUAGONG INNOVATION TECH
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