Judgment of the appearance of powder coating orange peel
-
Last Update: 2020-02-21
-
Source: Internet
-
Author: User
Search more information of high quality chemicals, good prices and reliable suppliers, visit
www.echemi.com
can visually evaluate and compare the appearance of orange peels using mechanical methods of the shape gauge or through ripple scanning(1) The visual methodthe model in this test is placed under the two-tube fluorescent lampThe template's reflective light source can be obtained by placing the template appropriatelyQualitative analysis of the clarity of reflected light visually evaluates the properties of flow and levelingIn the case of poor liquidity (orange peel), two fluorescent tubes look blurry and highly liquid products can achieve clear reflections(2) "Form measurement": in this method, therecords the surface shape by the offset of a highly sensitive probeThis allows for a quick distinction between roughness, orange peel, and fluctuations caused by shrinkholes, pinholes or dirt(3) Byk-Gardiner "Ripple Scan Orange Instrument Measurement"is designed to simulate visual judgment by focusing "ripple scanning" on the surfaceThe instrument is moved more than 10cm on the sample surface to scan the surface of the sampleThis method uses a laser light source to irradiate the surface of the template from a 60-degree angle and then measure the reflected light at a relatively similar angleThe signal detected the most when the beam hits the peak end or trough on the surface, and the signal that is recorded when the beam hits the peak slopeRipple scanning measures the visually visible optical surface finish, while the shape-measurement instrument measures the mechanical shape finish that people can feel
This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only.
This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of
the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed
description of the concern or complaint, to
service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content
will be removed immediately.