{"id":723977,"date":"2024-11-28T09:03:49","date_gmt":"2024-11-28T08:03:49","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=723977"},"modified":"2024-11-28T09:03:49","modified_gmt":"2024-11-28T08:03:49","slug":"%e7%83%ad%e6%9c%ba%e6%a2%b0%e5%88%86%e6%9e%90-tma","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e7%83%ad%e6%9c%ba%e6%a2%b0%e5%88%86%e6%9e%90-tma\/","title":{"rendered":"\u70ed\u673a\u68b0\u5206\u6790 (TMA)"},"content":{"rendered":"<p class=\"sidekick\">\u70ed\u673a\u68b0\u5206\u6790\uff08TMA\uff09\uff1a\u4e86\u89e3\u6750\u6599\u5728\u6e29\u5ea6\u53d8\u5316\u65f6\u7684\u6027\u80fd\uff0c\u901a\u8fc7\u70ed\u81a8\u80c0\u548c\u6536\u7f29\u7684\u6d4b\u91cf\uff0c\u63d0\u9ad8\u5de5\u4e1a\u4ea7\u54c1\u7684\u8bbe\u8ba1\u548c\u53ef\u9760\u6027\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u70ed\u673a\u68b0\u5206\u6790_TMA.png\" alt=\"\u70ed\u673a\u68b0\u5206\u6790 (TMA)\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u70ed\u673a\u68b0\u5206\u6790\uff08TMA\uff09<\/h2>\n<p>\u70ed\u673a\u68b0\u5206\u6790\uff08Thermal Mechanical Analysis, TMA\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u7814\u7a76\u6750\u6599\u5728\u5347\u6e29\u6216\u964d\u6e29\u8fc7\u7a0b\u4e2d\u5176\u5c3a\u5bf8\u548c\u5f62\u72b6\u53d8\u5316\u7684\u6280\u672f\u3002TMA\u4e3b\u8981\u7528\u4e8e\u6d4b\u91cf\u6750\u6599\u7684\u70ed\u81a8\u80c0\u7cfb\u6570\uff08CTE\uff09\u3001\u73bb\u7483\u5316\u8f6c\u53d8\u6e29\u5ea6\uff08Tg\uff09\u3001\u8f6f\u5316\u70b9\u53ca\u5176\u5b83\u70ed\u673a\u68b0\u6027\u80fd\u3002<\/p>\n<h2>TMA\u7684\u539f\u7406<\/h2>\n<p>TMA\u57fa\u4e8e\u6750\u6599\u5728\u6e29\u5ea6\u53d8\u5316\u8fc7\u7a0b\u4e2d\u7531\u4e8e\u70ed\u81a8\u80c0\u6216\u6536\u7f29\u5bfc\u81f4\u7684\u5c3a\u5bf8\u53d8\u5316\uff0c\u901a\u8fc7\u7cbe\u5bc6\u6d4b\u91cf\u8fd9\u4e9b\u53d8\u5316\u6765\u4e86\u89e3\u6750\u6599\u7684\u70ed\u673a\u68b0\u7279\u6027\u3002\u57fa\u672c\u539f\u7406\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u6837\u54c1\u5728\u7279\u5b9a\u7684\u5347\u6e29\u6216\u964d\u6e29\u901f\u7387\u4e0b\u88ab\u52a0\u70ed\u6216\u51b7\u5374\u3002<\/li>\n<li>\u4f7f\u7528\u4f20\u611f\u5668\u7cbe\u786e\u6d4b\u91cf\u6837\u54c1\u5728\u6e29\u5ea6\u53d8\u5316\u8fc7\u7a0b\u4e2d\u7684\u5c3a\u5bf8\u53d8\u5316\u3002<\/li>\n<li>\u6839\u636e\u6d4b\u91cf\u7ed3\u679c\u8ba1\u7b97\u51fa\u76f8\u5173\u7684\u70ed\u673a\u68b0\u53c2\u6570\uff0c\u5982\u70ed\u81a8\u80c0\u7cfb\u6570\u3002<\/li>\n<\/ul>\n<h2>\u70ed\u81a8\u80c0\u7cfb\u6570<\/h2>\n<p>\u70ed\u81a8\u80c0\u7cfb\u6570\uff08Coefficient of Thermal Expansion, \u03b1\uff09\u662f\u6750\u6599\u5728\u6e29\u5ea6\u53d8\u53161\u5ea6\u65f6\uff0c\u5176\u5c3a\u5bf8\u53d8\u5316\u7684\u6bd4\u4f8b\u3002\u516c\u5f0f\u4e3a\uff1a<\/p>\n<p>\u03b1 = \\frac{\\Delta L}{L \\cdot \\Delta T}<\/p>\n<p>\u5176\u4e2d:<\/p>\n<ul>\n<li>\u0394L \u662f\u957f\u5ea6\u53d8\u5316\u3002<\/li>\n<li>L \u662f\u539f\u59cb\u957f\u5ea6\u3002<\/li>\n<li>\u0394T \u662f\u6e29\u5ea6\u53d8\u5316\u3002<\/li>\n<\/ul>\n<h2>\u5e94\u7528\u9886\u57df<\/h2>\n<p>TMA\u5728\u8bb8\u591a\u5de5\u7a0b\u548c\u79d1\u5b66\u9886\u57df\u90fd\u6709\u5e7f\u6cdb\u5e94\u7528\uff0c\u5c24\u5176\u662f\u6d89\u53ca\u6750\u6599\u79d1\u5b66\u3001\u5316\u5b66\u3001\u7535\u5b50\u548c\u5236\u9020\u4e1a\u7684\u9886\u57df\u3002<\/p>\n<ul>\n<li><strong>\u6750\u6599\u79d1\u5b66<\/strong>\uff1a\u7528\u4e8e\u7814\u7a76\u65b0\u6750\u6599\u7684\u70ed\u673a\u68b0\u6027\u80fd\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u7406\u89e3\u5b83\u4eec\u7684\u884c\u4e3a\u3002<\/li>\n<li><strong>\u7535\u5b50\u884c\u4e1a<\/strong>\uff1a\u7528\u4e8e\u8bc4\u4f30\u534a\u5bfc\u4f53\u548c\u5176\u4ed6\u7535\u5b50\u5143\u4ef6\u5728\u6e29\u5ea6\u53d8\u5316\u4e2d\u7684\u7a33\u5b9a\u6027\u3002<\/li>\n<li><strong>\u5236\u9020\u4e1a<\/strong>\uff1a\u7528\u4e8e\u4f18\u5316\u6750\u6599\u9009\u62e9\u548c\u5236\u9020\u5de5\u827a\uff0c\u4ee5\u63d0\u9ad8\u4ea7\u54c1\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/li>\n<\/ul>\n<h2>\u5e38\u89c1\u7684TMA\u6d4b\u8bd5<\/h2>\n<ol>\n<li><strong>\u70ed\u81a8\u80c0\u6d4b\u8bd5<\/strong>\uff1a\u6d4b\u91cf\u6750\u6599\u5728\u4e0d\u540c\u6e29\u5ea6\u4e0b\u7684\u7ebf\u6027\u81a8\u80c0\u7279\u6027\u3002<\/li>\n<li><strong>\u73bb\u7483\u5316\u8f6c\u53d8\u6e29\u5ea6\uff08Tg\uff09\u6d4b\u8bd5<\/strong>\uff1a\u786e\u5b9a\u805a\u5408\u7269\u5728\u73bb\u7483\u6001\u548c\u6a61\u80f6\u6001\u4e4b\u95f4\u7684\u8f6c\u53d8\u6e29\u5ea6\u3002<\/li>\n<li><strong>\u8f6f\u5316\u70b9\u6d4b\u8bd5<\/strong>\uff1a\u6d4b\u91cf\u6750\u6599\u5728\u52a0\u70ed\u8fc7\u7a0b\u4e2d\u4ece\u786c\u8106\u72b6\u6001\u53d8\u4e3a\u8f6f\u5316\u72b6\u6001\u7684\u6e29\u5ea6\u3002<\/li>\n<\/ol>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u70ed\u673a\u68b0\u5206\u6790\u662f\u7814\u7a76\u6750\u6599\u5728\u6e29\u5ea6\u53d8\u5316\u8fc7\u7a0b\u4e2d\u5c3a\u5bf8\u548c\u5f62\u72b6\u53d8\u5316\u7684\u91cd\u8981\u6280\u672f\u3002\u901a\u8fc7\u4e86\u89e3\u6750\u6599\u7684\u70ed\u81a8\u80c0\u7cfb\u6570\u548c\u5176\u4ed6\u70ed\u673a\u68b0\u6027\u80fd\uff0c\u53ef\u4ee5\u4e3a\u6750\u6599\u9009\u62e9\u3001\u4ea7\u54c1\u8bbe\u8ba1\u548c\u5236\u9020\u5de5\u827a\u63d0\u4f9b\u91cd\u8981\u7684\u6570\u636e\u652f\u6301\uff0c\u4ece\u800c\u63d0\u9ad8\u4ea7\u54c1\u7684\u8d28\u91cf\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u70ed\u673a\u68b0\u5206\u6790\uff08TMA\uff09\uff1a\u4e86\u89e3\u6750\u6599\u5728\u6e29\u5ea6\u53d8\u5316\u65f6\u7684\u6027\u80fd\uff0c\u901a\u8fc7\u70ed\u81a8\u80c0\u548c\u6536\u7f29\u7684\u6d4b\u91cf\uff0c\u63d0\u9ad8\u5de5\u4e1a\u4ea7\u54c1\u7684\u8bbe\u8ba1\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[134],"tags":[],"yoast_head":"<!-- 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