13 Aug Scope—The SAE J lab test procedure should be used when determining cosmetic corrosion performance for a particular coating system. Salt Spray test (ASTM B) with exposures up to hours and the Cyclic Corrosion test (SAE J) with exposures up to and cycles. The latter. SAE J Cosmetic Corrosion Lab Test. This test procedure has been field correlated, so it is claimed that the results obtained should correlate well to those .
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There are several problems with ASTM B salt sae j2334 test when trying to rank the corrosion performance of automotive parts.
Please note The test standard summaries are for general guidance only. At least two substrates were chosen because the existence of proven corrosion testing results enabled them to be used to assure the consistency of the sae j2334. This group strived sae j2334 develop the knowledge of corrosion mechanisms and sae j2334 replication in a controlled environment until, nearly 20 years later and after considering over available laboratory, proving ground, and outdoor corrosion tests, the SAE Surface Vehicle Standard, J Cosmetic Corrosion Lab Test, was published in June sae j2334 Website design by Peter Bourne Communications.
John’s Newfoundland for 5 years. For one thing, parts tested in a salt-spray cabinet are continuously wet, while those parts on a wae experience periods of wetness and dryness.
Test method SAE J2334
Researchers sae j2334 also working on improving the method for salt application. The result is that salt j3234 sae j2334 methods produce different corrosion mechanisms and different corrosion products than the more realistic, but more expensive, outdoor testing.
Spray Method — periodic or continuous direct impingement spray of j2334 salt solution over the 15 minute interval that ensures that the test specimens are kept wet for the entire 15 minute sae j2334. The samples must be subject to an application of salt solution consisting of the following formulas and by use of one of three methods shown as follows.
sae j Laboratory Cyclic Corrosion Test_图文_百度文库
So this information should not be used as a substitute for referring to a sae j2334 test standard, at an appropriate revision level. For the specimens a minimum of 6, each sized The reason sae j2334 the ASTM B test methods do not accurately reproduce corrosion performance for auto parts is that they do not accurately reproduce the conditions in which automotive parts must exist.
When this is the case, you extend the dry stage over the weekend. The researchers then tested the standard materials with many different test methods, including SAE J sae j2334, and then statistically analyzed their results to see which test method offered the best correlation sae j2334 the real-world test results. It is also used elsewhere in the world where these auto companies have satellite manufacturing facilities, or joint collaborative ventures with other auto manufacturers.
Water fog method according to ASTM Dexcept that the collection rate is reduced from a sae j2334 of 1. The industry required a more predictive method of testing which would allow component performance to be addressed before field trials and product releases.
This website has been developed with modern browsers in mind to allow it to display at its best in a wide variety of viewing situations – including mobile viewing. The analysis showed sae j2334 80 cycles of the SAE J test corresponded to five years of on-vehicle testing. Inthey selected ten standard materials, including coated and uncoated parts, with a sae j2334 range of coating compositions and thicknesses.
The researchers also ran similar experiments in Michigan, Ohio, and Pennsylvania. In one test, they mounted panels of the standard materials on pickup trucks driven in Sae j2334, Quebec, and St.
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In this context they can be considered to be equivalent and interchangeable terms. Though believed to be accurate at the time of writing, this may change over time. They drove the trucks for five years and then measured the corrosion performance of the materials. The number of cycle repeats and therefore the test duration is variable. Once researchers have agreed on what changes to make in the test procedure, they will run a round-robin test to determine if the changes are really improvements.
Immersion Sae j2334 — test specimens immersed in the salt solution for a 15 minute interval u2334 each test cycle. Test Conditions Test specimens are sae j2334 in an enclosed chamber and exposed to a changing climate that sae j2334 of sae j2334 following 3 part repeating cycle. To determine the real-world sae j2334 of these materials, researchers then ran a series of tests. Sea are excellent browsers. Then, assuming that they are actually improvements, they will revise the standard and submit it to SAE.
One of the first steps was to develop a set of standard materials that the researchers could use to compare the laboratory tests to outdoor on-vehicle tests. SAE J is a relatively simple test to perform.
The corrosion mechanisms of on-vehicle and laboratory tests were studied by Lehigh University, and the sae j2334 analysis showed that similar corrosion products and modes were found in these tests as were found after conducting SAE J tests. When run manually, the standard allows for the fact that test personnel may not be available during weekends.
The test cycle is repeated daily, fully sae j2334 cabinets have the option of running during the weekends or programming in a dry stage soak.
The test panels were mounted on the vehicles in both horizontal and vertical orientations to better represent the various sae j2334 orientations typically found sae j2334 vehicle applications. One method of testing which was shown to be swe indicative of the performance of components in the conditions in which vehicles operate was sae j2334 Cyclic Corrosion Test CCT.
But we haven’t supported older browsers like IE8. Canadian on-vehicle tests were conducted at Montreal, Quebec and St.