{"id":626,"date":"2021-02-19T15:24:22","date_gmt":"2021-02-19T14:24:22","guid":{"rendered":"https:\/\/evolving-objects.nl\/?page_id=626"},"modified":"2021-03-18T15:23:52","modified_gmt":"2021-03-18T14:23:52","slug":"baking-and-glazing","status":"publish","type":"page","link":"https:\/\/evolving-objects.nl\/nl\/baking-and-glazing\/","title":{"rendered":"Bakken en Glazuren"},"content":{"rendered":"[vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text]De volgende stap is het bakken van de kopjes. We hebben door &#8217;trial and error&#8217; geleerd dat dit een delicaat proces is. Het kostte ons een aantal bakrondes om een beetje grip te krijgen op het bakken van keramiek. Via Marktplaats hadden we een oude keramiekoven gekocht voor ongeveer \u20ac150, maar de oven brandde bij de eerste bakbeurt direct door. Achteraf gezien bood dit een kans om de elektronica in het apparaat te verkennen. Na het vervangen van de thermostaat en wat bekabeling deed hij het weer en konden we echt aan de slag. In het waarschijnlijke geval dat je geen keramiekoven hebt, is het aan te raden om op zoek te gaan naar keramiekateliers in de buurt. In veel gevallen is het mogelijk om tegen een mooie prijs je kopje te laten bakken. Een kopje heeft twee baksessies nodig. De eerste sessie wordt ook wel biscuit bakken genoemd en is voor het bakken van de klei; de tweede sessie is voor het bakken van de glazuurlaag.\n<h6>Biscuit bakken<\/h6>\nDe eerste baksessie is voor het bakken van de klei. Onze oven is oud en heeft geen bakprogramma&#8217;s of de mogelijkheid de temperatuur te regelen. We gebruikten een pyrometer om de temperatuur te meten en op basis daarvan de thermostaat bij te stellen. He bakken gebeurde op basis van bakschema&#8217;s die we online hebben gevonden. Volg de links om ze te bekijken: de <a href=\"http:\/\/www.ez-design.nl\/kunst\/2012\/06\/klei-en-glazuur-bakken\/\">eerste<\/a> en de <a href=\"https:\/\/www.thesprucecrafts.com\/firing-schedules-and-ramps-2746244\">tweede<\/a> (Engels). Wij bakten onze kopjes tot maximaal 1050\u00b0C.\n<h6><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"643\" data-permalink=\"https:\/\/evolving-objects.nl\/nl\/baking-and-glazing\/baking-scheme\/\" data-orig-file=\"https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/baking-scheme.jpg?fit=720%2C540&amp;ssl=1\" data-orig-size=\"720,540\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"baking-scheme\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/baking-scheme.jpg?fit=300%2C225&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/baking-scheme.jpg?fit=720%2C540&amp;ssl=1\" class=\"alignnone wp-image-643 size-full\" src=\"https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/baking-scheme.jpg?resize=720%2C540&#038;ssl=1\" alt=\"\" width=\"720\" height=\"540\" srcset=\"https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/baking-scheme.jpg?w=720&amp;ssl=1 720w, https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/baking-scheme.jpg?resize=300%2C225&amp;ssl=1 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/h6>\n<h6>Glazuren<\/h6>\nHet glazuren gaf het meeste problemen. In onze eerste experimenten gebruikten we kant-en-klare glazuren van het merk <a href=\"https:\/\/www.keramikos.nl\/43-botz-kwast-engobe-900-1080-c\">Botz<\/a>. We brachten de glazuren op met een glazuurkwast. In alle gevallen barstte het glazuur na het bakken van de kopjes. Dit ging gepaard met een continu krakend geluid. Het probleem werd erger op het moment dat we er hete koffie in goten (zie de foto hieronder). Bij onze laatste experimenten maakten we zelf een mix van <a href=\"https:\/\/www.keramikos.nl\/aardewerkglazuren\/687-glansglazuur-transparant-1kg.html\">glazuurpoeder<\/a>, pehatine en water. Deze combinatie werkte goed en het glazuur bleef na het bakken heel en kraakte niet. Eindelijk konden we ons eerste kopje koffie uit onze eigen kopjes drinken.\nDe resultaten zijn nog steeds niet perfect. Glazuur lijkt niet gelijkmatig verspreid over het kopje. Voor een volgende sessie gaan we proberen het kopje in een glazuurbad te dippen. Een andere mogelijkheid is om de glazuur met een airbrush aan te brengen.\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"645\" data-permalink=\"https:\/\/evolving-objects.nl\/nl\/baking-and-glazing\/crack-kopje\/\" data-orig-file=\"https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/crack-kopje.jpg?fit=2000%2C1125&amp;ssl=1\" data-orig-size=\"2000,1125\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;5.6&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;ILCE-6000&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1608219629&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;40&quot;,&quot;iso&quot;:&quot;250&quot;,&quot;shutter_speed&quot;:&quot;0.02&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"crack-kopje\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/crack-kopje.jpg?fit=300%2C169&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/crack-kopje.jpg?fit=1024%2C576&amp;ssl=1\" class=\"alignnone wp-image-645 size-full\" src=\"https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/crack-kopje.jpg?resize=2000%2C1125&#038;ssl=1\" alt=\"\" width=\"2000\" height=\"1125\" srcset=\"https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/crack-kopje.jpg?w=2000&amp;ssl=1 2000w, https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/crack-kopje.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/crack-kopje.jpg?resize=1024%2C576&amp;ssl=1 1024w, https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/crack-kopje.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/crack-kopje.jpg?resize=1536%2C864&amp;ssl=1 1536w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\nVoorbeeld van een kopje met gebarsten glazuur.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;633&#8243; img_size=&#8221;full&#8221; alignment=&#8221;right&#8221; onclick=&#8221;img_link_large&#8221;][vc_single_image image=&#8221;641&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221; onclick=&#8221;img_link_large&#8221;][vc_single_image image=&#8221;650&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221; onclick=&#8221;img_link_large&#8221;][vc_single_image image=&#8221;652&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221; onclick=&#8221;img_link_large&#8221;][vc_column_text]Deze kopjes waren gelukt.[\/vc_column_text][\/vc_column][\/vc_row]","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text]De volgende stap is het bakken van de kopjes. We hebben door &#8217;trial and error&#8217; geleerd dat dit een delicaat proces is. Het kostte ons een aantal bakrondes om een beetje grip te krijgen op het bakken van keramiek. Via Marktplaats hadden we een oude keramiekoven gekocht voor ongeveer \u20ac150, maar de oven brandde [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-626","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bakken en Glazuren - Evolving objects<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/evolving-objects.nl\/baking-and-glazing\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[:en]Baking and Glazing[:nl]Bakken en Glazuren[:] - Evolving objects\" \/>\n<meta property=\"og:description\" content=\"[vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text]De volgende stap is het bakken van de kopjes. We hebben door &#8217;trial and error&#8217; geleerd dat dit een delicaat proces is. Het kostte ons een aantal bakrondes om een beetje grip te krijgen op het bakken van keramiek. Via Marktplaats hadden we een oude keramiekoven gekocht voor ongeveer \u20ac150, maar de oven brandde [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/evolving-objects.nl\/baking-and-glazing\/\" \/>\n<meta property=\"og:site_name\" content=\"Evolving objects\" \/>\n<meta property=\"article:modified_time\" content=\"2021-03-18T14:23:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/baking-scheme.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Geschatte leestijd\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/evolving-objects.nl\/baking-and-glazing\/\",\"url\":\"https:\/\/evolving-objects.nl\/baking-and-glazing\/\",\"name\":\"[:en]Baking and Glazing[:nl]Bakken en Glazuren[:] - Evolving objects\",\"isPartOf\":{\"@id\":\"https:\/\/evolving-objects.nl\/nl\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/evolving-objects.nl\/baking-and-glazing\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/evolving-objects.nl\/baking-and-glazing\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/baking-scheme.jpg\",\"datePublished\":\"2021-02-19T14:24:22+00:00\",\"dateModified\":\"2021-03-18T14:23:52+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/evolving-objects.nl\/baking-and-glazing\/#breadcrumb\"},\"inLanguage\":\"nl-NL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/evolving-objects.nl\/baking-and-glazing\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"nl-NL\",\"@id\":\"https:\/\/evolving-objects.nl\/baking-and-glazing\/#primaryimage\",\"url\":\"https:\/\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/baking-scheme.jpg\",\"contentUrl\":\"https:\/\/evolving-objects.nl\/wp-content\/uploads\/2021\/02\/baking-scheme.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/evolving-objects.nl\/baking-and-glazing\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/evolving-objects.nl\/nl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Baking and Glazing\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/evolving-objects.nl\/nl\/#website\",\"url\":\"https:\/\/evolving-objects.nl\/nl\/\",\"name\":\"Evolving objects\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/evolving-objects.nl\/nl\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/evolving-objects.nl\/nl\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"nl-NL\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/evolving-objects.nl\/nl\/#organization\",\"name\":\"Evolving Objects\",\"url\":\"https:\/\/evolving-objects.nl\/nl\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"nl-NL\",\"@id\":\"https:\/\/evolving-objects.nl\/nl\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/i1.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2020\/10\/logo-eo-avenir-medium-320-type-optimized.png?fit=334%2C33&ssl=1\",\"contentUrl\":\"https:\/\/i1.wp.com\/evolving-objects.nl\/wp-content\/uploads\/2020\/10\/logo-eo-avenir-medium-320-type-optimized.png?fit=334%2C33&ssl=1\",\"width\":334,\"height\":33,\"caption\":\"Evolving Objects\"},\"image\":{\"@id\":\"https:\/\/evolving-objects.nl\/nl\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"[:en]Baking and Glazing[:nl]Bakken en Glazuren[:] - Evolving objects","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/evolving-objects.nl\/baking-and-glazing\/","og_locale":"nl_NL","og_type":"article","og_title":"[:en]Baking and Glazing[:nl]Bakken en Glazuren[:] - Evolving objects","og_description":"[vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text]De volgende stap is het bakken van de kopjes. 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