{"id":10402,"date":"2024-11-29T22:53:23","date_gmt":"2024-11-29T20:53:23","guid":{"rendered":"https:\/\/ukrfavorit.ua\/product\/uncategorized\/olivine-sand-olivine\/"},"modified":"2024-11-29T22:53:23","modified_gmt":"2024-11-29T20:53:23","slug":"olivine-sand-olivine","status":"publish","type":"product","link":"https:\/\/ukrfavorit.ua\/en\/product\/catalog-of-materials\/auxiliary-materials-and-additives\/olivine-sand-olivine\/","title":{"rendered":"Olivine sand, olivine"},"content":{"rendered":"<p>Olivine sand is a natural refractory material for foundry production.<\/p>\n<h4><strong>The main advantages of olivine sand:<\/strong><\/h4>\n<p><strong>High heat resistance<\/strong>:<\/p>\n<ul>\n<li>Melting point: <strong>about 1780\u00b0C<\/strong>.<\/li>\n<li>Absence of allotropic transformations even at high temperatures.<\/li>\n<\/ul>\n<p><strong>Resistance to ferrostatic pressure<\/strong>:<\/p>\n<ul>\n<li>Provides stability for heavy castings.<\/li>\n<\/ul>\n<p><strong>Chemical inertness<\/strong>:<\/p>\n<ul>\n<li>It does not interact with manganese, making it ideal for the production of manganese steels.<\/li>\n<\/ul>\n<p><strong>Efficient heat dissipation<\/strong>:<\/p>\n<ul>\n<li>The high heat capacity (0.95 kJ\/kg\u00b0C) contributes to the rapid hardening of the metal, which is important when working with thermal components.<\/li>\n<\/ul>\n<p><strong>Resistance to slagging<\/strong>:<\/p>\n<ul>\n<li>It does not react with iron oxides, preserving the integrity of the mold.<\/li>\n<\/ul>\n<h4><strong>The use of olivine sand:<\/strong><\/h4>\n<ul>\n<li>Production of cast iron castings (gray, high-strength, ductile).<\/li>\n<li>Production of all types of steels, especially manganese steels.<\/li>\n<li>Use as a facing compound for injection molds.<\/li>\n<\/ul>\n<p>Olivine sand is ideal for creating austenitic steel castings due to its unique properties, including resistance to heat-related changes.<\/p>\n<h4><strong>Typical characteristics:<\/strong><\/h4>\n<p><strong>Chemical composition<\/strong> (percentage by weight):<\/p>\n<ul>\n<li><strong>MgO<\/strong>: 45,3%.<\/li>\n<li><strong>SiO\u2082:<\/strong> 42,2%.<\/li>\n<li><strong>Fe\u2082O\u2083:<\/strong> 9,0%.<\/li>\n<li><strong>Al\u2082O\u2083:<\/strong> 1,0%.<\/li>\n<li><strong>CaO<\/strong>: 1,4%.<\/li>\n<\/ul>\n<p><strong>Physical properties<\/strong>:<\/p>\n<ul>\n<li><strong>AFS (American Grain Standard)<\/strong>: 40-45.<\/li>\n<li><strong>Specific gra<\/strong>vity: 1.7-1.9 g\/cm\u00b3.<\/li>\n<li><strong>Hardness on the Mohs scale<\/strong>: 6,5-7,0.<\/li>\n<li><strong>Sintering starts at<\/strong> about 1450\u00b0C.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p><strong>Olivine sand<\/strong> is a naturally occurring gray-green mineral with a high density and melting point, making it an ideal choice for use in molding and core mixtures in foundry applications.<\/p>\n","protected":false},"featured_media":10107,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[2112,2096],"product_tag":[],"class_list":["post-10402","product","type-product","status-publish","has-post-thumbnail","product_cat-auxiliary-materials-and-additives","product_cat-catalog-of-materials","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.7 - 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