Method for detecting solvent volatilization rate in V-method casting coating
A technology of volatilization rate and casting coating, which is applied in the detection field of solvent volatilization rate, can solve problems such as production quality uncertainty, judgment difference, and influence on coating application effect, and achieve an effect that is conducive to production quality control
Inactive Publication Date: 2014-07-16
上海市机械制造工艺研究所有限公司
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However, due to the differences in the working experience and intuitive judgment of each staff member, there may be large differences in the judgment of the drying state of the V-method casting coating, which will affect the application effect of the coating in the casting production, and make the production quality control have certain limitations. uncertainty
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[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0023] Such as figure 1 As shown, a method for detecting the volatilization rate of solvent in the V method casting coating, its specific steps are as follows:
[0024] a. Raise the temperature of the blast drying oven to 50°C, and use a mercury thermometer to calibrate the temperature to keep it at 50°C±1°C. This temperature is the simulated working temperature, and a temperature between 40°C and 60°C can also be taken. Depending on different working environments and requirements, as long as the same simulated working temperature is selected during the process of detecting and comparing the solvent evaporation rate in each coating;
[0025] b. Fix the EVA film on a flat glass plate, put the glass plate with the film in a drying oven at 50°C, after drying, put the glass plate in a desiccator to cool to room temperature and weigh it, repeat the operatio...
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Abstract
The invention discloses a method for detecting solvent volatilization rate in a V-method casting coating. The method comprises the following steps: heating up a drying oven to simulated working temperature; putting a glass plate with an EVA film into the drying oven; drying into constant weight; coating the V-method casting coating on the film and weighing and marking into M; putting the glass plate into the drying oven at 50 DEG C, weighing and marking into M1 after appointed time; continuing to put into the drying oven, weighing at an interval of a period of time, and marking into M2 until constant weight; computing the volatilization rate of the solvent in the coating. According to the detection method disclosed by the invention, a quantitative method is provided for judging the volatilization rate of the solvent in the V-method casting coating, the volatilization rate of the solvent in the V-method casting coating can be effectively detected, the key drying performance of the V-method casting coating can be quantitatively displayed and contrasted specifically, and the production quality control of special casting adopting a V method is facilitated.
Description
technical field [0001] The invention relates to a method for detecting the volatilization rate of a solvent, in particular to a method for detecting the volatilization rate of a solvent in a V-method casting paint. Background technique [0002] Whether the V-method casting coating can be dried quickly at low temperature is an important factor affecting product quality and production efficiency. Therefore, the volatilization rate of the solvent in the V-method casting coating has become an important technical index of the V-method casting coating. [0003] In the prior art, there is no detection method for the volatilization rate of the solvent in the V-method casting coating, and the drying speed of the coating is often determined by the staff's work experience, on-site experience and intuitive judgment during the on-site production process. However, due to the differences in the working experience and intuitive judgment of each staff member, there may be large differences i...
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IPC IPC(8): G01N5/04
Inventor 卜伟施风华张羽
Owner 上海市机械制造工艺研究所有限公司