Influence of liquid phase rust test on filter equipment of oil filter
2018/5/17 Viewers:
The so-called liquid corrosion test (GB11142) is a test bar that is conical with No. 15 carbon steel, immersed in the mixture of 300m l steam turbine oil and 30ml distilled water. Under the condition of temperature 60 C, the specimen is constantly stirred at a certain speed, and after maintaining 24h, the rod is removed and the rust degree of the bar is checked with visual inspection. The judgment is added.
1. no rust: no rust on the bar, that is, to be qualified.
2. light rust: there are no more than 6 rust spots on the test bar, the diameter of each rust point is equal to or less than 1mm, or the rust area is less than or equal to 1% of the test bar.
3. rust: the rust area is less than or equal to 5% of the test bar.
4. rust: the rust area is more than 5% of the test bar.
The so-called membrane test is a test bar through liquid corrosion test, without any treatment, without any treatment, immediately insert a 300m1 distilled water without a beaker in a beaker, continue in 60 1C water bath, at 1000 + 5r/min speed, stirring 24h, after the end of the test, check the bar has no rust, such as rust free class is qualified for the hard membrane test.
The following matters should be paid attention to in the residual corrosion of liquid phase
1. the test bar can be reused after processing, but its diameter should not be less than 9.5mm.
2. during the test, the corrosion of the test bar can be observed at any time. If the corrosion is serious in a short time, the test can be stopped.
3. have done the oil in the addition of rust inhibitor test rod, although the surface is very bright, but in the test, it must be rubbed to rust membrane with gold phase sand, so that it can be used. Otherwise, the rust proof membrane will not be removed, and the test will continue. The test bar will not corrode, which will cause false judgement.
4. no rust proof test can be made without adding anti rust oil.
1. no rust: no rust on the bar, that is, to be qualified.
2. light rust: there are no more than 6 rust spots on the test bar, the diameter of each rust point is equal to or less than 1mm, or the rust area is less than or equal to 1% of the test bar.
3. rust: the rust area is less than or equal to 5% of the test bar.
4. rust: the rust area is more than 5% of the test bar.
The so-called membrane test is a test bar through liquid corrosion test, without any treatment, without any treatment, immediately insert a 300m1 distilled water without a beaker in a beaker, continue in 60 1C water bath, at 1000 + 5r/min speed, stirring 24h, after the end of the test, check the bar has no rust, such as rust free class is qualified for the hard membrane test.
The following matters should be paid attention to in the residual corrosion of liquid phase
1. the test bar can be reused after processing, but its diameter should not be less than 9.5mm.
2. during the test, the corrosion of the test bar can be observed at any time. If the corrosion is serious in a short time, the test can be stopped.
3. have done the oil in the addition of rust inhibitor test rod, although the surface is very bright, but in the test, it must be rubbed to rust membrane with gold phase sand, so that it can be used. Otherwise, the rust proof membrane will not be removed, and the test will continue. The test bar will not corrode, which will cause false judgement.
4. no rust proof test can be made without adding anti rust oil.
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