{"id":2107,"date":"2024-07-31T22:24:56","date_gmt":"2024-07-31T22:24:56","guid":{"rendered":"https:\/\/workhouse.sweetdishy.com\/?p=2107"},"modified":"2024-07-31T22:24:57","modified_gmt":"2024-07-31T22:24:57","slug":"hardening","status":"publish","type":"post","link":"https:\/\/workhouse.sweetdishy.com\/index.php\/2024\/07\/31\/hardening\/","title":{"rendered":"HARDENING"},"content":{"rendered":"\n<p>The purposes of hardening are: (a) to harden the steel to resist wear, and (b) to enable it to cut other metal. The metal is heated 30\u201350\u00b0C above the upper critical temperature for hypoeutectoid steel and above the same amount above the lower critical temperature for hypereutectoid steel. It is left for soaking for considered time. Quenching of high carbon steel heated to 1,100\u20131,300\u00b0C is done in a current of air. Quenching 150\u2013200\u00b0C per second in solution 3\u201310% caustic soda and 5\u201315% salt is more rapid than the quenching effect in water at 20\u00b0C and 32\u201342\u00b0C for oil quenching.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The purposes of hardening are: (a) to harden the steel to resist wear, and (b) to enable it to cut other metal. The metal is heated 30\u201350\u00b0C above the upper critical temperature for hypoeutectoid steel and above the same amount above the lower critical temperature for hypereutectoid steel. It is left for soaking for considered [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2108,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[],"class_list":["post-2107","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-heat-treatment"],"jetpack_featured_media_url":"https:\/\/workhouse.sweetdishy.com\/wp-content\/uploads\/2024\/07\/download-28-1.jpeg","_links":{"self":[{"href":"https:\/\/workhouse.sweetdishy.com\/index.php\/wp-json\/wp\/v2\/posts\/2107","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/workhouse.sweetdishy.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/workhouse.sweetdishy.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/workhouse.sweetdishy.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/workhouse.sweetdishy.com\/index.php\/wp-json\/wp\/v2\/comments?post=2107"}],"version-history":[{"count":1,"href":"https:\/\/workhouse.sweetdishy.com\/index.php\/wp-json\/wp\/v2\/posts\/2107\/revisions"}],"predecessor-version":[{"id":2109,"href":"https:\/\/workhouse.sweetdishy.com\/index.php\/wp-json\/wp\/v2\/posts\/2107\/revisions\/2109"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/workhouse.sweetdishy.com\/index.php\/wp-json\/wp\/v2\/media\/2108"}],"wp:attachment":[{"href":"https:\/\/workhouse.sweetdishy.com\/index.php\/wp-json\/wp\/v2\/media?parent=2107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/workhouse.sweetdishy.com\/index.php\/wp-json\/wp\/v2\/categories?post=2107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/workhouse.sweetdishy.com\/index.php\/wp-json\/wp\/v2\/tags?post=2107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}