{"id":22524,"date":"2024-03-08T15:58:27","date_gmt":"2024-03-08T07:58:27","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=22524"},"modified":"2024-03-08T15:58:27","modified_gmt":"2024-03-08T07:58:27","slug":"the-sintering-mechanism-of-carbide","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/zh\/the-sintering-mechanism-of-carbide\/","title":{"rendered":"\u786c\u8d28\u5408\u91d1\u7684\u70e7\u7ed3\u673a\u7406"},"content":{"rendered":"
\u78b3\u5316\u7269\u6210\u5f62\u4f53\u5f62\u6210\u540e\uff0c\u4ee5\u591a\u5b54\u72b6\u6001\u5b58\u5728\u3002\u5728\u6e7f\u78e8\u8fc7\u7a0b\u4e2d\uff0cWC\u7684\u5f62\u72b6\u53d7\u5230\u5f3a\u70c8\u51b2\u51fb\uff0c\u5bfc\u81f4\u8868\u9762\u80fd\u589e\u52a0\uff0c\u53cd\u5e94\u6d3b\u6027\u589e\u5f3a\u3002\u538b\u576f\u4e0e\u7a7a\u6c14\u63a5\u89e6\u7684\u65f6\u95f4\u8d8a\u957f\uff0c\u6c27\u5316\u7a0b\u5ea6\u5c31\u8d8a\u5927\uff0c\u9700\u8981\u66f4\u591a\u7684\u78b3\u6765\u8fd8\u539f\u3002\u78b3\u5316\u7269\u7684\u7406\u8bba\u78b3\u542b\u91cf\u4fdd\u6301\u57286.128%\uff0c\u6c27\u539f\u5b50\u4e0e\u78b3\u539f\u5b50\u7684\u6bd4\u4f8b\u4e3a12\/16\u3002\u56e0\u6b64\uff0c\u6bcf\u589e\u52a0\u4e00\u5355\u4f4d\u6c27\u6c14\uff0c\u5c31\u4f1a\u6d88\u80173\/4\u7684\u78b3\u542b\u91cf\u3002\u8fd9\u5bfc\u81f4\u5408\u91d1\u70e7\u7ed3\u540e\u66f4\u5bb9\u6613\u5f62\u6210\u03b7\u76f8\u3002<\/p>\n
\u78b3\u5316\u7269\u6df7\u5408\u7269\u4e2d\u7684\u6c27\u542b\u91cf\u53ef\u8ba4\u4e3a\u4ee5\u4e09\u79cd\u5f62\u5f0f\u5b58\u5728\uff1a\u5438\u7559\u6c27\u3001\u94b4\u8868\u9762\u6c27\u4ee5\u53caWO2\u6216WO3\u4e2d\u7684\u6c27\u3002\u7531\u4e8e\u5316\u5b66\u6c27\u6d4b\u5b9a\u6cd5\u6d4b\u5f97\u7684\u6c27\u542b\u91cf\u5305\u62ec\u8fd9\u4e09\u79cd\u6c27\u7684\u603b\u91cf\uff0c\u56e0\u6b64\u5728\u751f\u4ea7\u4e2d\u5f88\u96be\u786e\u5b9a\u5b83\u4eec\u5404\u81ea\u7684\u6bd4\u4f8b\u3002\u56e0\u6b64\uff0c\u8fd9\u7ed9\u751f\u4ea7\u5e26\u6765\u4e86\u6311\u6218\u3002\u53e6\u5916\uff0c\u73af\u5883\u4e2d\u5bcc\u6c27\u73b0\u8c61\u666e\u904d\u5b58\u5728\uff0c\u56e0\u6b64\u5728\u5b9e\u9645\u751f\u4ea7\u4e2d\u5408\u7406\u7ba1\u7406\u5404\u5de5\u5e8f\u81f3\u5173\u91cd\u8981\u3002<\/p>\n
\u5b58\u5728\u4e8e\u538b\u576f\u7684\u7a7a\u9699\u4e2d\u4ee5\u53ca\u538b\u576f\u548c\u6df7\u5408\u7269\u7684\u8868\u9762\uff1b\u4e00\u822c\u5728\u70e7\u7ed3\u5f00\u59cb\u65f6\u901a\u8fc7\u62bd\u771f\u7a7a\u9664\u53bb\uff0c\u56e0\u6b64\u4e0d\u5f71\u54cd\u5408\u91d1\u7684\u70e7\u7ed3\u3002<\/p>\n
\u7531\u4e8e\u94b4\u5728\u5ba4\u6e29\u4e0b\u6781\u6613\u6c27\u5316\uff0c\u968f\u7740\u6e29\u5ea6\u5347\u9ad8\uff0c\u6c27\u5316\u52a0\u5267\u3002\u7ecf\u8fc7\u6e7f\u78e8\u548c\u968f\u540e\u7684\u5e72\u71e5\u540e\uff0c\u94b4\u8868\u9762\u5f62\u6210\u4e00\u5c42\u6c27\u5316\u819c\uff1b\u6750\u6599\u6216\u538b\u576f\u5728\u70e7\u7ed3\u524d\u50a8\u5b58\u7684\u65f6\u95f4\u8d8a\u957f\uff0c\u94b4\u7684\u6c27\u5316\u7a0b\u5ea6\u5c31\u8d8a\u9ad8\u3002\u8fd9\u90e8\u5206\u6c27\u5316\u7269\u9700\u8981\u78b3\u6765\u8fd8\u539f\uff1b\u70e7\u7ed3\u65f6\u6e29\u5ea6\u8fbe\u5230600\u2103\u4e4b\u524d\uff0c\u8fd8\u539f\u4e3b\u8981\u4f9d\u9760\u6e38\u79bb\u78b3\uff0c\u5269\u4f59\u672a\u8fd8\u539f\u7684\u6c27\u5316\u7269\u5fc5\u987b\u7528\u7ed3\u5408\u78b3\u8fd8\u539f\u3002\u8fd9\u90e8\u5206\u6c27\u5bf9\u4e8e\u5408\u91d1\u70e7\u7ed3\u8fc7\u7a0b\u4e2d\u7684\u78b3\u6c27\u5e73\u8861\u81f3\u5173\u91cd\u8981\uff0c\u5e76\u4e14\u96be\u4ee5\u63a7\u5236\u3002<\/p>\n
\u53c8\u79f0\u590d\u5408\u6c27\uff1b\u5728WC\u78b3\u5316\u4e4b\u524d\uff0cWO3\u9010\u6e10\u8f6c\u53d8\u4e3aWO2\uff0c\u7136\u540e\u8f6c\u53d8\u4e3a\u94a8\u7c89(W)\uff0c\u7136\u540e\u78b3\u5316\u3002\u7531\u4e8e\u50a8\u5b58\u65f6\u95f4\u7684\u539f\u56e0\uff0c\u4e00\u4e9b\u6c27\u5316\u7269\u53ef\u80fd\u4fdd\u6301\u4e0d\u5b8c\u5168\u8fd8\u539f\u6216\u90e8\u5206\u6c27\u5316\uff0c\u4eceW\u2192W2C\u2192WC\uff0c\u5e76\u4e14\u5373\u4f7f\u5728\u5b8c\u6210\u540e\u4e5f\u53ef\u80fd\u6301\u7eed\u5b58\u5728\u3002\u53e6\u5916\uff0c\u50a8\u5b58\u671f\u95f4\u4fdd\u62a4\u4e0d\u5145\u5206\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6c27\u5316\u3002\u8fd9\u4e9b\u6c27\u5316\u7269\u6b8b\u7559\u7269\u79f0\u4e3a\u590d\u5408\u6c27\uff1b\u8fd8\u539f\u6e29\u5ea6\u4e00\u822c\u53d1\u751f\u57281000\u2103\u4e4b\u524d\uff0c\u4f46\u4e25\u91cd\u7684\u6c27\u5316\u53ef\u80fd\u5c06\u8fd8\u539f\u5ef6\u8fdf\u52301200\u2103\u3002\u8fd9\u79cd\u6c27\u5316\u7269\u6b8b\u7559\u7269\u663e\u7740\u6d88\u8017\u78b3\uff0c\u7f29\u5c0f\u4e86\u78b3\u6c34\u5e73\u7684\u4f59\u91cf\uff0c\u5e76\u4e14\u4f7f\u5f97\u96be\u4ee5\u63a7\u5236\u70e7\u7ed3\u78b3\u542b\u91cf\uff0c\u4ece\u800c\u4f7f\u5145\u5206\u6db2\u76f8\u5f62\u6210\u7684\u5b9e\u73b0\u53d8\u5f97\u590d\u6742\u3002<\/p>\n
<\/p>\n
\u78b3\u5316\u7269\u4e2d\u78b3\u7684\u5f62\u6001<\/p>\n
\u78b3\u5316\u7269\u4e2d\u7684\u78b3\u542b\u91cf\u4e3b\u8981\u4ee5\u4e09\u79cd\u65b9\u5f0f\u5b58\u5728\uff1aWC\u5316\u5b66\u8ba1\u91cf\u3001\u7c98\u7ed3\u5242\u5206\u89e3\u4ea7\u751f\u7684\u78b3\u589e\u91cf\u548c\u7089\u6c14\u4e2d\u78b3\u7684\u6e17\u900f\u3002<\/p>\n
\u4e00\u822c\u60c5\u51b5\u4e0bWC\u662f\u6839\u636e\u78b3\u5316\u7269\u7684\u7406\u8bba\u542b\u78b3\u91cf\u6765\u8c03\u6574\u7684\uff1b\u6e7f\u78e8\u524d\u6839\u636e\u5c0f\u6837\u8fdb\u884c\u5408\u7406\u7684\u78b3\u8c03\u6574\uff1b\u5728\u8721\u5de5\u827a\u4e2d\uff0c\u901a\u8fc7\u51cf\u53bb\u4ece\u7089\u6c14\u4e2d\u6e17\u900f\u7684\u78b3\u91cf\u5e76\u52a0\u4e0a\u6c27\u5316\u7269\u6d88\u8017\u7684\u78b3\u91cf\u6765\u8c03\u6574\u78b3\u542b\u91cf\u3002\u5728\u70bc\u80f6\u8fc7\u7a0b\u4e2d\uff0c\u5e94\u51cf\u53bb\u4e09\u5206\u4e4b\u4e00\u7684\u80f6\u91cd\u91cf\u3002<\/p>\n
\u5728\u8131\u8102\u548c\u70e7\u7ed3\u8fc7\u7a0b\u4e2d\uff0c\u65e0\u8bba\u4f7f\u7528\u8721\u3001PEG\u8fd8\u662f\u6a61\u80f6\uff0c\u6216\u591a\u6216\u5c11\u90fd\u4f1a\u6709\u5206\u89e3\uff1b\u56e0\u6b64\uff0c\u78b3\u5316\u7269\u53ef\u4ee5\u83b7\u5f97\u78b3\uff0c\u5c3d\u7ba1\u589e\u52a0\u7684\u78b3\u91cf\u968f\u4e0d\u540c\u7684\u7c98\u7ed3\u5242\u800c\u53d8\u5316\u3002\u7531\u4e8e\u8721\u4e3b\u8981\u4f9d\u9760\u84b8\u53d1\uff0c\u6240\u4ee5\u4e00\u822c\u8ba4\u4e3a\u4e0d\u589e\u52a0\u78b3\u542b\u91cf\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u6a61\u80f6\u548cPEG\u4f9d\u8d56\u4e8e\u5206\u89e3\uff0c\u6a61\u80f6\u5206\u89e3\u53d1\u751f\u5728\u8f83\u9ad8\u7684\u6e29\u5ea6\u4e0b\uff0c\u5bfc\u81f4\u66f4\u591a\u7684\u78b3\u589e\u52a0\u3002<\/p>\n
<\/p>\n
\u7531\u4e8e\u786c\u8d28\u5408\u91d1\u70e7\u7ed3\u7089\u4e2d\u7684\u52a0\u70ed\u5143\u4ef6\u3001\u4fdd\u6e29\u5c42\u3001\u70e7\u7ed3\u677f\u6216\u821f\u76bf\u5927\u591a\u91c7\u7528\u77f3\u58a8\u5236\u54c1\uff0c\u56e0\u6b64\u5176\u6548\u679c\u5728600\u2103\u65f6\u53d8\u5f97\u660e\u663e\uff1b\u5f53\u70e7\u7ed3\u6e29\u5ea6\u5347\u81f31200\u2103\u4ee5\u4e0a\u65f6\uff0c\u77f3\u58a8\u4e2d\u91ca\u653e\u51fa\u5927\u91cf\u7684\u78b3\u548cCO\uff0c\u52a0\u5267\u4e86\u78b3\u5411\u78b3\u5316\u7269\u7684\u6e17\u900f\u3002<\/p>\n
Cobalt has a hexagonal close-packed crystal structure, making it highly reactive and prone to oxidation. In WC-Co alloys, cobalt acts as the binder metal. When the cobalt phase exhibits the \u03b5-Co crystal structure, with fewer slip planes (theoretically no more than 3), the alloy’s toughness is low. However, when the cobalt phase exhibits the \u03b1-Co crystal structure, the maximum number of theoretical slip planes can increase to 12, resulting in stronger fracture resistance. With increasing sintering temperature, the cobalt crystal structure shifts from hexagonal close-packed to face-centered cubic; the reverse occurs during cooling. Since tungsten dissolves more in cobalt, playing a “nailing” role, the transformation of crystal structure during cooling varies with the amount of tungsten dissolved.<\/p>\n
\u5ba4\u6e29\u4e0bWC\u4e2d\u94b4\u6eb6\u89e3\u91cf\u53ef\u8fbe1%\uff1b\u5f53\u70e7\u7ed3\u6e29\u5ea6\u8fbe\u5230400\u2103\uff5e800\u2103\u65f6\uff0c\u94b4\u53d1\u751f\u5267\u70c8\u7684\u6269\u6563\u548c\u91cd\u6392\u3002\u5728\u6b64\u671f\u95f4\uff0c\u8f83\u4f4e\u91cf\u7684\u6e38\u79bb\u78b3\u66f4\u6709\u5229\u4e8e\u6ed1\u79fb\u9762\u7684\u589e\u52a0\uff1b\u8fd9\u5728\u8721\u5904\u7406\u4e2d\u662f\u6709\u5229\u7684\u3002\u7136\u800c\uff0c\u6a61\u80f6\u5de5\u827a\u9700\u8981\u5728600\u2103\u5de6\u53f3\u5b8c\u6210\u5206\u89e3\uff0c\u5f71\u54cd\u4e86\u94b4\u76f8\u6ed1\u79fb\u9762\u7684\u6709\u6548\u51fa\u73b0\u3002<\/p>\n
\u70e7\u7ed3\u65f6\u57281000\u2103\u65f6\uff0c\u6c27\u5316\u7269\u51e0\u4e4e\u5b8c\u6210\u4e86\u8fd8\u539f\u8fc7\u7a0b\uff0c\u56e0\u6b64\u8be5\u9636\u6bb5\u79f0\u4e3a\u65e0\u6c27\u70e7\u7ed3\u3002\u6b64\u9636\u6bb5\u4e00\u822c\u6d4b\u8bd5\u78b3\u5316\u7269\u4e2d\u7684\u78b3\u542b\u91cf\uff1b\u7136\u800c\uff0c\u6240\u8c13\u7684\u65e0\u6c27\u78b3\u4ec5\u542b\u6709\u6781\u5c11\u91cf\u7684\u6c27\u3002\u5c3d\u7ba1\u5982\u6b64\uff0c\u6b64\u65f6\u94b4\u8868\u9762\u7684\u6c27\u5316\u7269\u5df2\u5b8c\u5168\u51cf\u5c11\uff0c\u5e76\u4e14\u94b4\u76f8\u8fb9\u7f18\u4ea7\u751f\u7684\u6db2\u76f8\u8f83\u5c11\u3002\u5728\u6b64\u9636\u6bb5\uff0c\u538b\u576f\u5df2\u83b7\u5f97\u4e00\u5b9a\u7684\u786c\u5ea6\uff0c\u79f0\u4e3a\u9884\u70e7\u7ed3\u9636\u6bb5\u3002\u6b64\u9636\u6bb5\u7684\u4ea7\u54c1\u5982\u6709\u5fc5\u8981\u53ef\u8fdb\u884c\u5851\u6599\u52a0\u5de5\u3002<\/p>\n
<\/p>\n
\u7406\u8bba\u4e0a\uff0cWC-Co\u5408\u91d1\u4e2d\u7684\u6db2\u76f8\u51fa\u73b0\u57281340\u00b0C\u3002\u5145\u5206\u51fa\u73b0\u6db2\u76f8\u7684\u6e29\u5ea6\u968f\u78b3\u542b\u91cf\u800c\u53d8\u5316\u3002\u968f\u7740\u70e7\u7ed3\u6e29\u5ea6\u5347\u9ad8\uff0c\u6db2\u76f8\u91cf\u589e\u52a0\uff1b\u7ec6\u5c0f\u7684WC\u9897\u7c92\u9010\u6e10\u5f62\u6210\u6db2\u76f8\u3002\u4ea7\u54c1\u53d1\u751f\u5267\u70c8\u6536\u7f29\uff0c\u51cf\u5c11\u4e86WC\u9897\u7c92\u4e4b\u95f4\u7684\u8ddd\u79bb\u3002\u7ec6\u7684 WC \u9897\u7c92\u9010\u6e10\u88ab\u8f83\u5927\u7684\u9897\u7c92\u7194\u5316\uff0c\u5f62\u6210\u8f83\u7c97\u7684 WC \u9897\u7c92\u3002\u8fd9\u79cd\u73b0\u8c61\u79f0\u4e3a\u6676\u7c92\u751f\u957f\u3002\u70e7\u7ed3\u8fc7\u7a0b\u4e2d\u6676\u7c92\u751f\u957f\u662f\u4e0d\u53ef\u907f\u514d\u7684\uff0c\u7279\u522b\u662f\u5728\u8d85\u7ec6\u6216\u4e9a\u5fae\u7c73WC \u4e2d\uff0c\u6676\u7c92\u751f\u957f\u66f4\u4e3a\u660e\u663e\u3002\u4e3a\u4e86\u6709\u6548\u6291\u5236\u6676\u7c92\u8fc7\u5ea6\u957f\u5927\uff0c\u53ef\u4ee5\u6dfb\u52a0VC\u3001TaC\u3001Cr3C2\u7b49\u6291\u5236\u5242\u3002<\/p>\n
\u70e7\u7ed3\u540e\uff0c\u672a\u6eb6\u89e3\u7684WC\u548cW2C\u8fc5\u901f\u6790\u51fa\uff0c\u968f\u540e\u5f62\u6210\u4e09\u5143\u5171\u6676\uff0c\u4e3a\u5408\u91d1\u7684\u5f62\u6210\u5960\u5b9a\u4e86\u57fa\u7840\u3002 1200\u2103\u4ee5\u4e0a\u51b7\u5374\u65f6\u95f4\u8d8a\u957f\uff0c\u6790\u51fa\u8d8a\u5b8c\u5168\uff0c\u4f46\u6676\u7c92\u957f\u5927\u7684\u673a\u4f1a\u4e5f\u8d8a\u5927\u3002<\/p>\n
<\/p>\n
The pursuit of ternary eutectic structures is the most critical aspect of sintering in WC-Co carbide. Ternary eutectic structures form the fundamental framework of carbide. In the W-C-Co ternary system, effective handling of WC grain growth, allowing more tungsten to dissolve in cobalt without decarburization, thereby improving the durability and toughness of carbide, is always the goal of alloy manufacturers. A German technical expert once said: “The essence of sintering lies in ‘high temperature and low carbon’.”<\/p><\/div>\n
<\/p>","protected":false},"excerpt":{"rendered":"
Sintering of carbide\u00a0is a crucial step in the production of carbide. During the pressing process of carbide\u00a0powder, the bonding between powder particles mainly relies on the pressure exerted during pressing, and the powder particles cannot bond with each other due to the lack of yield tension. The pressed compact exists in a porous state. Liquid…<\/p>","protected":false},"author":2,"featured_media":22526,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[79],"tags":[],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2024\/03\/t0183b785de9ddd12ac.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/posts\/22524"}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/comments?post=22524"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/posts\/22524\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/media\/22526"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/media?parent=22524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/categories?post=22524"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/tags?post=22524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}