{"id":882,"date":"2019-01-22T15:04:59","date_gmt":"2019-01-22T15:04:59","guid":{"rendered":"https:\/\/www.plastikcity.co.uk\/blog\/?p=882"},"modified":"2019-03-07T15:08:22","modified_gmt":"2019-03-07T15:08:22","slug":"surface-roughness-testing","status":"publish","type":"post","link":"https:\/\/www.plastikcity.co.uk\/blog\/surface-roughness-testing\/","title":{"rendered":"Surface Roughness Testing"},"content":{"rendered":"<p><strong>Surface roughness or roughness, in short, is the measure of deviations in the direction of the normal vector of a real surface from its ideal form.<\/strong><!--more--><\/p>\n<p>If the deviations are small surface is smooth, if they are large, the surface is rough.<\/p>\n<p>Significant differences in surface roughness can obviously lead to visual differences between two identically manufactured parts.\u00a0 However, even if the differences are not visible by naked eye, acute differences in surface roughness can affect the amount of wear, ability to form a seal when a part makes a contact with another surface, paint or coating ability of the part etc.\u00a0 The internal surface roughness of pipes can affect the flow of fluid resulting in pressure and energy losses.\u00a0 Therefore, it becomes necessary to measure the surface roughness<\/p>\n<p>Impact use the state of the art Mitutoyo Surftest SJ-210 Portable Surface Roughness Tester.\u00a0 This tester is portable, hence making it possible to perform measurements on site and on parts with difficult to access areas.\u00a0 The tester uses a stylus type probe of radius 5\u00b5m.\u00a0 It comes with a calibrant to calibrate and perform equipment checks.<\/p>\n<p>The Surftest SJ-210 complies with the following standards: JIS (JIS-B0601-2001, JIS-B0601-1994, JIS B0601-1982), VDA, ISO-1997, and ANSI.<\/p>\n<p>It can perform the following measurements:<\/p>\n<p>Ra \u2013 arithmetical mean roughness value.<\/p>\n<p>Rmr(c) \u2013 material component of the profile.<\/p>\n<p>RSm \u2013 mean peak width.<\/p>\n<p>Rt \u2013 total height of the roughness profile<\/p>\n<p>Rzi \u2013 greatest height of the roughness profile<\/p>\n<p>Rz1max \u2013 maximum roughness depth<\/p>\n<p>Rz \u2013 mean roughness depth<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-20787\" src=\"https:\/\/www.plastikcity.co.uk\/blog\/wp-content\/uploads\/2017\/07\/impact-solutions.jpg\" alt=\"Impact Solutions logo\" width=\"240\" height=\"44\" \/><\/p>\n<p><em>Impact Solutions<\/em><br \/>\n<em>+44 (0) 1324 489 182<\/em><br \/>\n<a href=\"http:\/\/www.impact-solutions.co.uk\/\" target=\"_blank\" rel=\"noopener noreferrer\"><em>Website<\/em><\/a><br \/>\n<a href=\"mailto:info@impact-solutions.co.uk\" target=\"_blank\" rel=\"noopener noreferrer\"><em>Email<\/em><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Surface roughness or roughness, in short, is the measure of deviations in the direction of the normal vector of a real surface from its ideal form.<\/p>\n","protected":false},"author":101012,"featured_media":883,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[261,280,369,290],"class_list":["post-882","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-plastikcity-blogs","tag-impact-solutions","tag-material-testing","tag-surface-roughness","tag-testing","post-preview"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.plastikcity.co.uk\/blog\/wp-json\/wp\/v2\/posts\/882","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.plastikcity.co.uk\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.plastikcity.co.uk\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.plastikcity.co.uk\/blog\/wp-json\/wp\/v2\/users\/101012"}],"replies":[{"embeddable":true,"href":"https:\/\/www.plastikcity.co.uk\/blog\/wp-json\/wp\/v2\/comments?post=882"}],"version-history":[{"count":0,"href":"https:\/\/www.plastikcity.co.uk\/blog\/wp-json\/wp\/v2\/posts\/882\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.plastikcity.co.uk\/blog\/wp-json\/wp\/v2\/media\/883"}],"wp:attachment":[{"href":"https:\/\/www.plastikcity.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.plastikcity.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.plastikcity.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}