New test platform for coating washing-out resistance

Abstract

The invention discloses a new test platform for coating washing-out resistance. The new test platform for coating washing-out resistance includes an L-shaped bracket (1), a test water box (2), a motor(3), a rotation test device (4), a water tank (6) and a water pump. The rotation test device (4) includes a rotor (41) and a rotating shaft (42). The rotor (41) includes a main body frame (411) and alip (412). A circular arc-shaped test sample plate (51) is directly installed on the main body frame (411). Two installation surfaces are provided on the lip (412), an installation surface of an inner side is in an arc shape and installed on the main body frame (411) directly, and an installation surface of an outer side consists of multiple angular planes and are used for installing multiple straight line-type test sample plates (52). Through a unique structure of the lip accessory of the rotor, the circular arc-shaped test sample plate and the straight line-type test sample plates can be replaced with each other without the need for disassembling the whole rotor, thus replacement is simple, a test period can be greatly shortened and the efficiency is evidently improved in the same testduration especially when there is an observation window.

Description

technical field [0001] The invention belongs to the field of testing the erosion resistance performance of coatings, in particular to a novel testing platform for the erosion resistance performance of coatings. Background technique [0002] The attachment of marine organisms will lead to a significant increase in friction on the hull surface, blockage of water inlet pipes, reduced ship speed, increased fuel consumption, and increased times of docking maintenance, etc., resulting in huge economic losses. Application of antifouling coatings is a widely applicable method of preventing biofouling. Organotin self-polishing antifouling coatings developed in the 1970s have been widely used because of their high efficiency and broad spectrum. However, subsequent studies have shown that organotins can cause serious harm to the marine ecological environment and even human health. The Marine Environmental Protection Committee (MEPC) of the International Maritime Organization stipulat...

AI Technical Summary

Problems solved by technology

That is to say, this type of simulation device can only test the same type of test sample in one rotation cycle, and the replacement operation is cumbersome and the test cycle is long, so it cannot be applied to various samples.

[0007] 2. Although the portable test device is convenient to be placed directly on the seabed, it cannot be fixed well and cannot overcome the adverse effects of vibration on the simulation test;

[0008] 3. The open frame is placed in natural seawater, but the parameters of natural seawater in different regions, at different times, and in different waters are different, external factors cannot be fixed, and the validity and accuracy of simulation tests are poor;

[0009] 4. When the sample rotates at high speed, the seawater is thrown out of the open frame, the effective interaction time between the sample and seawater is short, and the test period is long; and if the rotating device is closed, the test progress and test results cannot be observed in time, The closed water tank needs to be completely disassembled, and the sample can only be disassembled and replaced after taking out the rotating device. If it is found that the test time is not enough, the test effect is not good, and it needs to be reinstalled, then the test is wasted and the test cycle is prolonged.

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