Environment-friendly energy-saving infiltration process

Abstract

The invention discloses an environment-friendly energy-saving infiltration process. The environment-friendly energy-saving infiltration process comprises the following steps of a, carrying out vacuuminfiltration on a workpiece; b, carrying out centrifugal degassing on the workpiece subjected to vacuum infiltration; c, washing the workpiece subjected to centrifugal degassing, and then centrifugingto remove the liquid again; d, washing the workpiece subjected to centrifugal degassing again for the third time; e, carrying out curing polymerization on the workpiece subjected to the third centrifugal degassing; and f, after the workpiece is solidified and polymerized, the workpiece is lifted above the liquid level to carry out centrifugal degassing. The environment-friendly energy-saving infiltration process has the advantages that the centrifugal dehydration is carried out for many times, and the quality of the product caused by the series liquid is avoided; the drying is integrated in the curing polymerization, the waste heat is fully utilized, and the time and the cost are saved; the effective recovery and filtration of the sealant are increased, the utilization rate of the sealantand the lotion solution is high, and the pollution of the enterprise cost and the waste liquid discharge to the environment is low; the liquid circulation self-cleaning process is adopted, the product is not prone to cause secondary pollution, the liquid replacement frequency is greatly reduced, and the pollution to the environment due to chemical solvent pollution is avoided.

Description

technical field [0001] The invention relates to the technical field of impregnation, in particular to an environment-friendly and energy-saving impregnation process. Background technique [0002] The main purpose of impregnation is to infiltrate and solidify the sealant for the subtle defects (such as micropores, shrinkage, cracks) on the surface of various castings or other workpieces, so as to repair the defects of the workpiece, improve the performance and air tightness of the parts, and prolong its service life. . [0003] Such as figure 1 As shown, the existing impregnation process has the following deficiencies: [0004] 1. In the traditional process, there are relatively few centrifugal dehydration processes. After a long time of use, the tank solutions will cause mutual liquid leakage, which will lead to changes in the ratio of the solutions between the tanks and affect product quality. [0005] 2. In the traditional process, cleaning requires three main processes...

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Problems solved by technology

[0004] 1. In the traditional process, there are relatively few centrifugal dehydration processes. After a long time of use, the tank solutions will cause mutual liquid leakage, which will lead to changes in the ratio of the solutions between the tanks and affect product quality.

[0005] 2. In the traditional process, cleaning requires three main processes to complete the entire cleaning process. Because there is no centrifugal dehydration after each process is completed, the phenomenon of cross-flow will cause mutual pollution, and the workpiece cannot be cleaned quickly and thoroughly.

[0006] 3. The hot air drying process in the traditional process is carried out separately after curing and polymerization, the drying effect is poor, and a large amount of heat during curing is wasted, the handling time is long, and the energy consumption is large

[0007] 4. In the traditional process, there is a lack of effective recovery and filtration of the sealant, the utilization rate of the sealant and lotion solution is low, and at the same time, the enterprise cost and the pollution of the waste liquid discharge to the environment (or the treatment cost of the waste liquid) are high

[0008] 5. The lack of liquid circulation self-cleaning in the traditional process, the liquid cleanliness in the tank body is low, the product is easily polluted by the liquid twice, which greatly increases the frequency of liquid replacement, and easily causes chemical solvent pollution to the environment

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