{"id":1640,"date":"2021-03-29T15:49:47","date_gmt":"2021-03-29T07:49:47","guid":{"rendered":"https:\/\/www.chinaautoregs.com\/?p=1640"},"modified":"2024-08-05T15:21:52","modified_gmt":"2024-08-05T07:21:52","slug":"gb-t-7758-2020-%e8%8b%b1%e6%96%87%e7%89%88-%e7%bf%bb%e8%af%91-english-%e7%a1%ab%e5%8c%96%e6%a9%a1%e8%83%b6-%e4%bd%8e%e6%b8%a9%e6%80%a7%e8%83%bd%e7%9a%84%e6%b5%8b%e5%ae%9a%e6%b8%a9%e5%ba%a6%e5%9b%9e","status":"publish","type":"post","link":"https:\/\/www.chinaautoregs.com\/?p=1640","title":{"rendered":"GB\/T 7758-2020\u82f1\u6587\u7248\u7ffb\u8bd1 \u786b\u5316\u6a61\u80f6\u4f4e\u6e29\u6027\u80fd\u7684\u6d4b\u5b9a\u6e29\u5ea6\u56de\u7f29\u6cd5\uff08TR\u8bd5\u9a8c\uff09"},"content":{"rendered":"

ChinaAutoRegs\uff5cGB\/T 7758-2020 \u82f1\u6587\u7248\/\u7ffb\u8bd1\/English \u786b\u5316\u6a61\u80f6 \u4f4e\u6e29\u6027\u80fd\u7684\u6d4b\u5b9a\u6e29\u5ea6\u56de\u7f29\u6cd5\uff08TR\u8bd5\u9a8c\uff09
\nRubber, Vulcanized – Determination of Low-Temperature Characteristics – Temperature-Retraction Procedure (TR Test)<\/p>\n

<\/p>\n

1 SCOPE<\/p>\n

This Standard specifies the method for determination of the temperature-retraction characteristics of stretched vulcanized rubber.
\nThis Standard does not cover thermoplastic rubbers, as many thermoplastic elastomers have a yield point in the range of 5 % to 20 % elongation.<\/p>\n

2 NORMATIVE REFERENCES<\/p>\n

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
\nISO 18899:2013 Rubber – Guide to the calibration of test equipment
\nISO 23529 Rubber – General procedures for preparing and conditioning test pieces for physical test methods<\/p>\n

3 TERMS AND DEFINITIONS<\/p>\n

No terms and definitions are listed in this document.
\nISO and IEC maintain terminological databases for use in standardization at the following addresses:
\n\uf0be IEC Electropedia: available at http:\/\/www.electropedia.org\/
\n\uf0be ISO Online browsing platform: available at http:\/\/www.iso.org\/obp<\/p>\n

4 PRINCIPLE<\/div>\n
<\/div>\n
A test piece is stretched at standard laboratory temperature and then cooled to a sufficiently low temperature such that retraction does not occur upon removal of the stretching force. The stretching force is removed and the temperature increased at a uniform rate. The temperatures at which specified percentage retractions occur are determined.<\/div>\n

5 \u4eea\u5668<\/p>\n

5.1 \u56de\u7f29\u88c5\u7f6e
\n\u75315.2~5.8\u89c4\u5b9a\u7684\u90e8\u5206\u7ec4\u6210(\u89c1\u56fe1)\u3002
\n5.2 \u4f20\u70ed\u4ecb\u8d28
\n\u6309ISO23529\u7684\u8981\u6c42\u9009\u62e9\u6db2\u4f53\u6216\u6c14\u4f53\u4f20\u70ed\u4ecb\u8d28,\u5728\u8bd5\u9a8c\u6e29\u5ea6\u4e0b\u5e94\u4fdd\u6301\u6d41\u4f53\u72b6\u6001,\u4e14\u5bf9\u88ab\u6d4b\u6750\u6599\u65e0\u660e \u663e\u5f71\u54cd\u3002
\n\u5982\u679c\u8bd5\u9a8c\u4eea\u5668\u80fd\u591f\u4fdd\u8bc1\u8bd5\u9a8c\u7ed3\u679c\u4e0e\u4f7f\u7528\u6db2\u4f53\u4f20\u70ed\u4ecb\u8d28\u76f8\u540c\u65f6,\u4e5f\u53ef\u4ee5\u4f7f\u7528\u6c14\u4f53\u4f20\u70ed\u4ecb\u8d28\u3002 \u53ef\u4ee5\u4f7f\u7528\u4e0b\u5217\u6d41\u4f53:
\na) \u5f53\u8bd5\u9a8c\u6e29\u5ea6\u4f4e\u81f3-60 \u2103\u65f6,\u7845\u6cb9,\u56e0\u4e3a\u5b83\u5bf9\u6a61\u80f6\u5177\u6709\u5316\u5b66\u60f0\u6027\u3001\u4e0d\u71c3\u6027\u548c\u65e0\u6bd2\u6027;
\n\u6ce8:\u5728\u73af\u5883\u6e29\u5ea6\u4e0b\u8fd0\u52a8\u9ecf\u5ea6\u7ea6\u4e3a 5 mm2\/s\u3002
\nb) \u5f53\u8bd5\u9a8c\u6e29\u5ea6\u4f4e\u81f3-73 \u2103\u65f6,\u4e59\u9187;
\nc) \u5f53\u8bd5\u9a8c\u6e29\u5ea6\u4f4e\u81f3-120 \u2103\u65f6,\u7532\u57fa\u73af\u5df1\u70f7,\u7528\u6db2\u6c2e\u51b7\u5374(\u9002\u7528\u4e8e\u914d\u5957\u4eea\u5668)\u3002
\n5.3 \u6d4b\u6e29\u88c5\u7f6e
\n\u914d\u5907\u6e29\u5ea6\u6d4b\u91cf\u88c5\u7f6e,\u8981\u6c42\u5728\u6574\u4e2a\u6e29\u5ea6\u6d4b\u8bd5\u8303\u56f4\u5185,\u6e29\u5ea6\u6d4b\u91cf\u7684\u6700\u5927\u5141\u8bb8\u8bef\u5dee\u4e3a0.5 \u2103\u3002
\n\u6e29\u5ea6\u4f20\u611f\u5668\u5e94\u5b89\u88c5\u5728\u8bd5\u6837\u9644\u8fd1\u3002<\/p>\n

5.4 \u6e29\u5ea6\u63a7\u5236
\n\u80fd\u591f\u5c06\u4f20\u70ed\u4ecb\u8d28\u7684\u6e29\u5ea6\u4fdd\u6301\u5728\u00b11 \u2103\u4ee5\u5185\u3002
\n5.5 \u4f20\u70ed\u4ecb\u8d28\u5bb9\u5668
\n\u5e26\u6709\u52a0\u70ed\u4f20\u70ed\u4ecb\u8d28\u529f\u80fd\u7684\u51b7\u5374\u69fd\u6216\u6c14\u4f53\u8bd5\u9a8c\u7bb1\u3002<\/p>\n

5.6 \u6405\u62cc\u4f20\u70ed\u4ecb\u8d28\u7684\u5de5\u5177
\n\u7528\u4e8e\u6db2\u4f53\u7684\u6405\u62cc\u5668\u6216\u7528\u4e8e\u6c14\u4f53\u7684\u98ce\u6247\u6216\u9f13\u98ce\u673a,\u4ee5 \u786e\u4fdd\u4f20\u70ed\u4ecb\u8d28\u4fdd\u6301\u5b8c\u5168\u5faa\u73af\u3002 \u4fdd\u6301\u6405\u62cc\u5668\u5782\u76f4 \u6405\u52a8\u6db2\u4f53\u5bf9\u4e8e\u786e\u4fdd\u6db2\u4f53\u6e29\u5ea6\u5747\u5300\u5f88\u91cd\u8981\u3002
\n5.7 \u8ba1\u65f6\u88c5\u7f6e
\n\u79d2\u8868\u6216\u5176\u4ed6\u4ee5\u79d2\u6765\u8ba1\u91cf\u7684\u8ba1\u65f6\u88c5\u7f6e\u3002<\/p>\n

5.8 \u8bd5\u6837\u67b6
\n\u8be5\u67b6\u88c5\u6709\u4e00\u4e2a\u52a0\u8f7d\u88c5\u7f6e\u3001\u80fd\u5939\u6301\u4e00\u4e2a\u6216\u591a\u4e2a\u8bd5\u6837\u7684\u5939\u5177\u548c\u4e00\u4e2a\u6d3b\u52a8\u7684\u4e0a\u5939\u5177\u7684\u9501\u5b9a\u88c5\u7f6e\u3002 \u8bd5\u6837\u67b6\u5e94\u8bbe\u8ba1\u6210\u4f7f\u8bd5\u6837\u4fdd\u6301\u8f7b\u5fae\u7684\u5f20\u529b(\u5728 \u7a7a\u6c14\u4e2d 10kPa~20kPa),\u5e76 \u53ef\u4f7f\u5176\u88ab\u62c9\u4f38\u7684\u6700\u5927\u4f38\u957f
\n\u7387\u4e3a350%;\u540c\u65f6,\u5176\u8bbe\u8ba1\u5e94\u80fd\u4f7f\u4e0a\u5939\u5177\u9501\u5b9a\u5728\u9009\u5b9a\u4f38\u957f\u7387\u7684\u4f4d\u7f6e\u4e0a \u5e76\u80fd\u968f\u65f6\u677e\u5f00\u3002 \u5e94\u63d0\u4f9b\u80fd\u5728\u8bd5\u9a8c\u671f
\n\u95f4\u7684\u4efb\u4f55\u65f6\u95f4\u5185\u8bfb\u53d6\u8bd5\u6837\u957f\u5ea6\u7684\u88c5\u7f6e\u3002\u957f\u5ea6\u6d4b\u91cf\u88c5\u7f6e\u7684\u6700\u5927\u5141\u8bb8\u8bef\u5dee\u4e3a0.25 mm,\u751a\u81f3\u8981\u6c42\u66f4\u9ad8\u3002
\n\u6b64\u5916,\u4e5f\u53ef\u4f7f\u7528\u4e00\u7cfb\u5217 \u53ef \u66f4 \u6362 \u7684 \u76f4 \u63a5 \u6309 \u62c9 \u4f38 \u8bd5 \u6837 \u4f38 \u957f \u7387 \u8bfb \u53d6 \u56de \u7f29 \u7387 \u7684 \u6807 \u5c3a,\u82e5 \u6709 \u8981 \u6c42,\u53ef \u51c6 \u786e \u5230
\n0.5%\u3002
\n\u5e94\u80fd\u4fdd\u8bc1\u8bd5\u6837\u67b6\u5728\u4f7f\u7528\u7684\u6db2\u4f53\u4e2d\u4fdd\u630110kPa~20kPa\u7684\u8f7b\u5fae\u5f20\u529b\u3002 \u8bbe\u7f6e\u989d\u5916\u7684\u8f7b\u5fae\u5f20\u529b,\u628a\u4e0a\u5939\u5177\u653e\u5230\u8bd5\u6837\u4f38\u957f\u90e8 \u4f4d\u7684\u4e2d\u95f4\u4f4d\u7f6e\u5e76\u4fdd\u6301\u4e0a\u5939\u5177\u4e0d\u52a8\u3002 \u7136\u540e\u589e\u52a0\u8d1f\u8377
\n\u4f7f\u5f20\u529b\u5904\u572810kPa~20kPa\u7684\u8303\u56f4\u5185\u3002\u4ee5\u4e0a\u6b65\u9aa4\u9700\u5728\u6807\u51c6\u5b9e\u9a8c\u5ba4\u6e29\u5ea6\u4e0b\u8fdb\u884c\u3002 \u6ce8:\u4e0a\u5939\u5177\u7684\u5f20\u529b\u88ab\u4e00\u5b9a\u4f53\u79ef\u8bd5\u6837\u5939\u5904\u5728\u6db2\u4f53\u4e2d\u6240\u4ea7\u751f\u7684\u6d6e\u529b\u6240\u5f71\u54cd\u3002 \u8bd5\u6837\u67b6\u7684\u53ef\u79fb\u52a8\u90e8\u5206\u7684\u8bbe\u8ba1\u5e94\u5c3d\u91cf\u51cf\u5c11\u6469\u64e6\u529b\u3002<\/p>\n

\u8bf4\u660e:
\n1\u2014\u2014\u2014 \u6ed1\u8f6e; 8 \u2014\u2014\u2014 \u4e0a\u5939\u5177\u7684\u4e0a\u90e8;
\n2\u2014\u2014\u2014 \u7ebf\u7ef3; 9 \u2014\u2014\u2014 \u4e0a\u5939\u5177\u7684\u9501\u5b9a\u88c5\u7f6e;
\n3\u2014\u2014\u2014 \u5e73\u8861\u7269; 10\u2014\u2014\u2014 \u7edd\u70ed\u5c42;
\n4\u2014\u2014\u2014 \u6405\u62cc\u5668; 11\u2014\u2014\u2014 \u51b7\u5374\u4ecb\u8d28\u5bb9\u5668;
\n5\u2014\u2014\u2014 \u51b7\u5374\u4ecb\u8d28\u52a0\u70ed\u88c5\u7f6e(\u6d78 \u5165\u5f0f\u52a0\u70ed\u5668); 12\u2014\u2014\u2014 \u4e0a\u5939\u5177;
\n6\u2014\u2014\u2014 \u673a\u67b6; 13\u2014\u2014\u2014 \u8bd5\u6837;
\n7\u2014\u2014\u2014 \u53ef\u6362\u5f0f\u6807\u5c3a; 14\u2014\u2014\u2014 \u4e0b\u5939\u5177\u3002
\n\u56fe1 \u56de\u7f29\u88c5\u7f6e<\/p>\n

6 \u6821\u51c6<\/p>\n

\u8bd5\u9a8c\u4eea\u5668\u5e94\u6309\u7167\u9644\u5f55 A \u6240\u5217\u7684\u65f6\u95f4\u8868\u8fdb\u884c\u6821\u51c6\u3002<\/p>\n

7 \u8bd5\u6837<\/p>\n

7.1 \u8bd5\u6837\u7684\u5236\u5907
\n\u8bd5\u6837\u5e94\u6309ISO23529\u89c4\u5b9a\u8fdb\u884c\u5236\u5907\u3002
\n7.2 \u8bd5\u6837\u7684\u7c7b\u578b
\n7.2.1 \u6807\u51c6\u8bd5\u6837
\n\u6807\u51c6\u8bd5 \u6837 \u4e3a \u7aef \u5934 \u5bbd \u5927 \u800c \u4fbf \u4e8e \u5939 \u7d27 \u7684 \u6761 \u5f62,\u5176 \u5c3a \u5bf8 \u5e94 \u7b26 \u5408 \u56fe 2 \u7684 \u8981 \u6c42\u3002 \u8bd5 \u6837 \u521d \u59cb \u957f \u5ea6l0 \u5e94 \u4e3a
\n100 mm\u00b10.2 mm \u621650mm\u00b10.2mm\u3002100mm\u00b10.2mm \u7684\u8bd5\u6837\u9002\u7528\u4e8e\u4f4e\u4f38\u957f\u7387\u6750\u6599\u7684\u8bd5\u9a8c,50mm\u00b1
\n0.2 mm \u7684\u8bd5\u6837\u9002\u7528\u4e8e\u9ad8\u4f38\u957f\u7387\u6750\u6599\u7684\u8bd5\u9a8c\u3002\u8bd5\u6837\u5e94\u7528\u950b\u5229\u7684\u88c1\u5200\u4ece\u539a\u5ea6\u4e3a 2.0 mm\u00b10.2 mm \u7684\u5e73\u6574 \u8bd5\u7247\u4e0a\u88c1\u53d6,\u8bd5\u6837\u53ef\u7528\u6a21\u538b\u65b9\u6cd5\u6216\u4ece\u6210\u54c1\u4e0a\u5207\u5272\u3001\u6253\u78e8\u7684\u65b9\u6cd5\u5236\u5907\u3002
\n\u5982\u679c\u8bd5\u6837\u957f \u5ea6 \u6d4b \u91cf \u88c5 \u7f6e \u51c6 \u786e \u5230 0.125 mm \u751a \u81f3 \u66f4 \u9ad8,\u5219 \u53ef \u4f7f \u7528 50 mm \u957f \u7684 \u8bd5 \u6837 \u6d4b \u8bd5 50% \u7684 \u4f38 \u957f\u7387\u3002<\/p>\n

\u56fe2 \u6807\u51c6\u8bd5\u6837<\/p>\n

\u5355\u4f4d\u4e3a\u6beb\u7c73<\/p>\n

7.2.2 \u4ece\u4ea7\u54c1\u4e0a\u88c1\u53d6\u7684\u8bd5\u6837
\n\u9664\u6807\u51c6\u8bd5\u6837\u5916,\u53ef\u4f7f\u7528\u4ece\u6a61\u80f6\u6210\u54c1(\u4f8b\u5982,\u622a\u9762\u76f4\u5f84\u57281.5mm \u548c4mm \u4e4b\u95f4\u7684 O \u578b\u5708)\u4e0a\u88c1\u53d6\u7684\u5176 \u4ed6\u7c7b\u578b\u8bd5\u6837\u3002
\n\u6ce8\u610f\u8fd9\u7c7b\u8bd5\u6837\u672a\u5fc5\u7ed9\u51fa\u4e0e7.2.1\u4e2d \u89c4\u5b9a\u7684\u4e24\u79cd\u6807\u51c6\u8bd5\u6837\u76f8\u540c\u7684\u7ed3\u679c,\u56e0 \u4e3a\u4e0d\u540c\u7c7b\u578b\u8bd5\u6837\u6d4b\u8bd5\u7ed3\u679c \u4e0d\u53ef\u4ee5\u6bd4\u8f83\u3002
\n7.3 \u8bd5\u6837\u7684\u6570\u91cf
\n\u6bcf\u6b21\u8bd5\u9a8c\u5e94\u81f3\u5c11\u4f7f\u7528\u4e09\u4e2a\u8bd5\u6837\u3002<\/p>\n

7.4 \u8bd5\u6837\u7684\u8c03\u8282
\n7.4.1 \u9664\u975e\u56e0\u6280\u672f\u539f\u56e0\u53e6\u6709\u89c4\u5b9a,\u5e94\u63097.4.2~7.4.5\u6b65\u9aa4\u5bf9\u8bd5\u6837\u8fdb\u884c\u8c03\u8282:
\n7.4.2 \u786b\u5316\u4e0e\u8bd5\u9a8c\u7684\u65f6\u95f4\u95f4\u9694\u5e94\u7b26\u5408ISO23529\u7684\u89c4\u5b9a\u3002
\n7.4.3 \u8bd5\u6837\u5728\u786b\u5316\u4e0e\u8bd5\u9a8c\u7684\u65f6\u95f4\u95f4\u9694\u5185\u5e94\u5c3d\u53ef\u80fd\u5b8c\u5168\u907f\u5149\u3002
\n7.4.4 \u8bd5\u6837\u5e94\u5728ISO23529\u89c4\u5b9a\u7684\u5176\u4e2d\u4e00\u4e2a\u6807\u51c6\u5b9e\u9a8c\u5ba4\u6e29\u5ea6\u4e0b\u8c03\u8282\u81f3\u5c1116h,\u7136\u540e\u7acb\u5373\u8fdb\u884c\u8bd5\u9a8c\u3002
\n7.4.5 \u5bf9\u4e8e\u6613\u7ed3\u6676\u7684\u6837\u54c1,\u82e5 \u8bd5\u9a8c\u524d\u5728\u4f4e\u6e29\u4e0b\u8d2e\u5b58,\u5219 \u53ef\u80fd\u53d1\u751f\u7ed3\u6676\u73b0\u8c61,\u8fd9 \u5bf9\u6240\u6d4b\u91cf\u7684\u6e29\u5ea6\u56de\u7f29\u503c\u4f1a\u6709\u8f83\u5927\u7684\u5f71\u54cd\u3002\u5982\u679c\u9700\u8981\u975e\u7ed3\u6676\u72b6\u6001\u4e0b\u6750\u6599\u7684\u6e29\u5ea6\u56de\u7f29\u503c,\u5219\u5e94\u5728\u8bd5\u9a8c\u524d\u5c06\u8bd5\u6837\u653e\u572870 \u2103\u70d8\u7bb1\u4e2d\u52a0\u70ed 30 min,\u4ee5\u6d88\u9664\u7ed3\u6676,\u7136\u540e\u5728\u6807\u51c6\u8bd5\u9a8c\u5ba4\u6e29\u5ea6\u4e0b\u8c03\u8282\u81f3\u5c1130 min,\u4f46\u4e0d\u5e94\u8d85\u8fc760 min\u3002<\/p>\n

8 \u8bd5\u9a8c\u6b65\u9aa4<\/p>\n

\u51b7\u5374\u69fd\u4e2d\u5e94\u88c5\u5165\u8db3\u591f\u7684\u4f20\u70ed\u4ecb\u8d28(5.2),\u4ee5\u4f7f\u8bd5\u9a8c\u671f\u95f4\u6db2\u9762\u9ad8\u5ea6\u8ddd\u8bd5\u6837\u9876\u7aef\u81f3\u5c1125 mm\u3002 \u6309ISO23529\u7684\u8981\u6c42,\u8fb9\u6405\u62cc\u8fb9\u4f7f\u4f20\u70ed\u4ecb\u8d28\u51b7\u5374\u81f3-70 \u2103\u3002 \u5728\u6db2\u4f53\u51b7\u5374\u7684\u540c\u65f6,\u5c06\u8bd5\u6837\u67b6(5.8)\u4e2d\u7684\u6837\u54c1,\u5728\u6807\u51c6\u5b9e\u9a8c\u5ba4\u6e29\u5ea6\u4e0b,\u4ece\u521d \u59cb\u957f\u5ea6\u62c9\u4f38\u5230\u9009\u5b9a\u7684\u4f38\u957f
\n\u503c\u5e76\u5c06\u5176\u9501\u5b9a\u5728\u6b64\u4f4d\u7f6e\u4e0a\u3002\u5e94\u786e\u4fdd\u8bd5\u6837\u5728\u6807\u51c6\u5b9e\u9a8c\u5ba4\u6e29\u5ea6\u4e0b\u4fdd\u6301\u62c9\u4f38\u72b6\u6001\u7684\u65f6\u95f4\u6700\u77ed\u3002 \u4f38\u957f\u7387\u53ef\u6309\u4e0b\u5217\u539f\u5219\u9009\u62e9:
\na) \u9664\u975e\u6280\u672f\u539f\u56e0\u53e6\u6709\u89c4\u5b9a\u548c\u4e3a\u4e86\u51cf\u5c11\u7ed3\u6676\u7684\u5f71\u54cd,\u5e94\u9009\u752850%; b) \u4e3a\u7814\u7a76\u7ed3\u6676\u548c\u4f4e\u6e29\u7684\u7efc\u5408\u5f71\u54cd,\u5e94\u9009\u7528\u4e0b\u5217\u4f38\u957f\u7387\u4e4b\u4e00:
\n1) 250%;
\n2) \u82e5\u8fbe\u4e0d\u5230250%,\u5e94\u9009\u7528\u62c9\u65ad\u4f38\u957f\u7387\u7684\u4e00\u534a;
\n3) \u82e5\u62c9\u65ad\u4f38\u957f\u7387\u5927\u4e8e600%,\u5e94\u9009\u7528350%\u3002
\n\u5f53\u4f20\u70ed\u4ecb\u8d28\u8fbe\u5230-70 \u2103\u548c-73 \u2103\u4e4b\u95f4\u4e00\u5e73\u8861\u6e29\u5ea6\u65f6,\u5c06 \u5e26\u6709\u8bd5\u6837\u7684\u8bd5\u6837\u67b6\u653e\u5165\u51b7\u5374\u69fd\u4e2d,\u4f7f \u5176\u5728 \u6e29\u5ea6\u4e3a-70 \u2103\u81f3-73 \u2103\u4e4b\u95f4\u7684\u51b7\u5374\u69fd\u4e2d\u4fdd\u630110 min\u00b12 min\u3002\u677e\u5f00\u4e0a\u5939\u5177\u7684\u9501\u5b9a \u88c5\u7f6e,\u8ba9 \u8bd5\u6837\u81ea\u7531\u56de \u7f29\u3002 \u540c\u65f6,\u4ee51 \u2103\/min\u7684\u901f\u7387\u4f7f\u6db2\u4f53\u5347\u6e29,\u5176\u5141\u5dee\u662f\u5728\u4efb\u4e00\u4e2a10min\u65f6\u95f4\u95f4\u9694\u5185,\u6e29\u5347\u4e3a10 \u2103\u00b12 \u2103\u3002
\n\u5982\u679c\u62c9\u4f38\u7684\u8bd5\u6837\u5728-70 \u2103\u4e0b\u56de\u7f29\u5230\u521d\u59cb\u957f\u5ea6,\u5219\u9700\u91c7\u7528\u5176\u4ed6\u4f20\u70ed\u4ecb\u8d28,\u4f7f\u5176\u51b7\u5374\u81f3\u66f4\u4f4e\u7684\u6e29\u5ea6\u3002
\n\u677e\u5f00\u8bd5\u6837\u65f6\u8bfb\u53d6\u7b2c\u4e00\u4e2a\u8bfb\u6570,\u4ee5\u6700\u5927\u95f4\u96942 min\u8bfb\u53d6\u4e00\u6b21\u6e29\u5ea6\u503c\u548c\u5bf9\u5e94\u7684\u56de\u7f29\u957f\u5ea6\u6216\u56de\u7f29\u7387,\u76f4 \u5230 \u56de\u7f29\u7387\u8fbe\u523071%\u4e3a\u6b62\u3002
\n\u4e3a\u7814\u7a76\u7ed3\u6676\u6548\u5e94\u6216\u957f\u671f\u51b7\u51bb\u7684\u5f71\u54cd,\u6839\u636e\u8bd5\u9a8c\u76ee\u7684\u548c\u6240\u7814\u7a76\u7684\u6750\u6599,\u53ef\u4f7f\u8bd5\u6837\u5728\u5e94\u53d8\u72b6\u6001\u4e0b\u5728\u9009\u5b9a \u7684\u4e00\u4e2a\u6216\u51e0\u4e2a\u4f4e\u6e29\u4e0b,\u51b7\u51bb\u66f4\u957f\u7684\u65f6\u95f4\u3002
\n\u6ce8:\u4e0d\u540c\u7684\u4f38\u957f\u7387 ,\u5176 \u8bd5\u9a8c\u7ed3\u679c TR10 ,TR30 ,TR50 ,TR70 \u672a\u5fc5\u76f8\u540c\u3002<\/p>\n

9 \u7ed3\u679c\u7684\u8868\u793a<\/p>\n

\u56de\u7f29\u7387r \u53ef\u4ee5\u4ece\u523b\u5ea6\u5c3a\u4e0a\u8bfb\u53d6\u6216\u7528\u516c\u5f0f(1)\u8ba1\u7b97:
\n\u4f38\u957f\u5ea6,\u5355\u4f4d\u4e3a\u6beb\u7c73(mm);
\nlr \u2014\u2014\u2014\u76f8\u5173\u6e29\u5ea6\u4e0b\u7684\u56de\u7f29\u957f\u5ea6,\u5355\u4f4d\u4e3a\u6beb\u7c73(mm);
\nl0 \u2014\u2014\u2014\u521d\u59cb\u957f\u5ea6,\u5355\u4f4d\u4e3a\u6beb\u7c73(mm)\u3002
\n\u7ed8\u51far \u4e0e\u5bf9\u5e94\u6e29\u5ea6\u7684\u5173\u7cfb\u66f2\u7ebf\u56fe\u3002
\n\u4ece\u56fe\u4e2d\u8bfb\u51fa\u5bf9\u5e94 10%,30%,50% \u548c 70% \u56de\u7f29\u7387\u7684\u6e29\u5ea6\u3002 \u8fd9\u4e9b\u6e29 \u5ea6 \u5206 \u522b \u88ab \u79f0 \u4e3a TR10\u3001TR30\u3001TR50 \u548c TR70\u3002
\n\u5206\u522b\u7ed9\u51fa\u4e09\u4e2a\u8bd5\u6837\u7684 TR10\u3001TR30\u3001TR50\u3001TR70\u6d4b\u5b9a\u503c\u7684\u4e2d\u503c\u3002<\/p>\n

10 \u7cbe\u5bc6\u5ea6<\/p>\n

\u53c2\u89c1\u9644\u5f55 B\u3002<\/p>\n

11 \u8bd5\u9a8c\u62a5\u544a<\/p>\n

\u8bd5\u9a8c\u62a5\u544a\u5e94\u5305\u62ec\u4e0b\u5217\u5185\u5bb9:
\na) \u6837\u54c1\u4fe1\u606f:
\n1) \u6837\u54c1\u53ca\u5176\u6765\u6e90\u7684\u8be6\u7ec6\u63cf\u8ff0;
\n2) \u6df7\u70bc\u53ca\u786b\u5316\u7684\u8be6\u7ec6\u8bf4\u660e(\u5982\u9700\u8981);
\n3) \u8bd5\u6837\u7684\u5236\u5907\u65b9\u6cd5,\u4f8b\u5982\u6a21\u538b\u6216\u88c1\u5207\u3002
\nb) \u8bd5\u9a8c\u65b9\u6cd5:
\n1) \u6240\u7528\u8bd5\u9a8c\u65b9\u6cd5\u7684\u5b8c\u6574\u7f16\u53f7,\u4f8b\u5982\u672c\u6807\u51c6\u7684\u7f16\u53f7;
\n2) \u4f7f\u7528\u8bd5\u6837\u7684\u7c7b\u578b\u3002
\nc) \u8bd5\u9a8c\u8bf4\u660e:
\n1) \u6240\u7528\u7684\u6807\u51c6\u5b9e\u9a8c\u5ba4\u6e29\u5ea6;
\n2) \u8bd5\u6837\u5728\u8bd5\u9a8c\u524d\u8c03\u8282\u7684\u65f6\u95f4\u548c\u6e29\u5ea6;
\n3) \u51b7\u51bb\u65f6\u7684\u4f38\u957f\u7387;
\n4) \u4f7f\u7528\u7684\u4f20\u70ed\u4ecb\u8d28;
\n5) \u4efb\u4f55\u504f\u79bb\u672c\u6807\u51c6\u89c4\u5b9a\u7684\u7a0b\u5e8f\u3002
\nd) \u8bd5\u9a8c\u7ed3\u679c:
\n1) \u8bd5\u6837\u6570\u91cf;
\n2) TR10\u3001TR30\u3001TR50\u548c TR70\u7684\u4e2d\u503c;
\n3) \u6bcf\u4e2a\u8bd5\u6837 TR10\u3001TR30\u3001TR50\u548c TR70\u7684\u5355\u4e2a\u503c\u3002
\ne) \u8bd5\u9a8c\u65e5\u671f\u3002<\/p>\n

\u9644\u5f55 A (\u89c4\u8303\u6027\u9644\u5f55) \u6821 \u51c6 \u89c4 \u8303<\/p>\n

A.1 \u6838\u67e5<\/p>\n

\u5728\u8fdb\u884c\u4efb\u4f55\u6821\u51c6\u4e4b\u524d,\u5e94\u901a\u8fc7\u6838\u67e5\u786e\u8ba4\u9700\u6821\u51c6\u9879\u76ee\u7684\u72b6\u51b5,\u5e76 \u8bb0\u5f55\u6821\u51c6\u62a5\u544a\u6216\u8bc1\u4e66\u3002 \u62a5\u544a\u4e2d\u5e94\u8bb0 \u5f55\u6821\u51c6\u662f\u5728\u201c\u6536\u8d27\u201d\u72b6\u6001\u4e0b\u8fdb\u884c\u8fd8\u662f\u7ea0\u6b63\u5f02\u5e38\u6216\u7ef4\u4fee\u6545\u969c\u540e\u8fdb\u884c\u3002
\n\u5e94\u786e\u8ba4\u8bbe\u5907\u80fd\u591f\u8fbe\u5230\u9884\u671f\u76ee\u7684,\u5305\u62ec\u89c4\u5b9a\u7684\u6240\u6709 \u53c2\u6570\u548c\u4e0d\u9700\u8981\u6b63\u5f0f\u6821\u51c6\u7684\u53c2\u6570\u3002 \u5982\u679c\u8fd9\u4e9b\u53c2\u6570\u6709 \u53ef\u80fd\u53d1\u751f\u53d8\u5316,\u5219\u5e94\u5728\u6821\u51c6\u7a0b\u5e8f\u4e2d\u5199\u660e\u9700\u8fdb\u884c\u671f\u95f4\u6838\u67e5\u3002<\/p>\n

A.2 \u65f6\u95f4\u8868<\/p>\n

\u8bd5\u9a8c\u8bbe\u5907\u7684\u9a8c\u8bc1\u3001\u6821\u51c6\u662f\u672c\u6807\u51c6\u7684\u5f3a\u5236\u6027\u90e8\u5206\u3002\u9664\u975e\u53e6\u6709\u89c4\u5b9a,\u6821\u51c6\u7684\u9891\u7387\u548c\u7a0b\u5e8f\u7531\u5404\u8bd5\u9a8c\u5ba4\u6839\u636e
\nISO18899\u7684\u89c4\u5b9a\u81ea\u884c\u51b3\u5b9a\u3002
\n\u8868 A.1\u5217\u51fa\u4e86\u8bd5\u9a8c\u65b9\u6cd5\u4e2d\u6d89\u53ca\u7684\u6240\u6709\u53c2\u6570,\u5305 \u62ec\u89c4\u5b9a\u7684\u8981\u6c42\u3002(\u8fd9 \u4e9b)\u53c2 \u6570\u548c\u8981\u6c42\u6d89\u53ca\u4e3b\u8981\u7684\u8bd5\u9a8c \u8bbe\u5907\u3001\u8bbe\u5907\u7684\u90e8\u4ef6\u6216\u8bd5\u9a8c\u6240\u9700\u7684\u9644\u4ef6\u3002
\n\u5bf9\u4e8e\u6bcf\u9879\u53c2\u6570,\u6821\u51c6\u7a0b\u5e8f\u7531ISO18899\u3001\u5176 \u4ed6\u51fa\u7248\u7269\u6216\u4e13\u95e8\u9488\u5bf9\u8be5\u5b9e\u9a8c\u65b9\u6cd5\u7684\u8be6\u7ec6\u7a0b\u5e8f\u7ed9\u51fa (\u5982 \u6709 \u6bd4ISO18899\u66f4\u8be6\u7ec6\u7684\u6821\u51c6\u7a0b\u5e8f,\u5219\u5e94\u4f18\u5148\u91c7\u7528)\u3002
\n\u6bcf\u9879\u53c2\u6570\u7684\u6821\u51c6\u9891\u7387\u90fd\u7531\u4e00\u4e2a\u5b57\u6bcd\u4ee3\u7801\u7ed9\u51fa,\u6821\u51c6\u8ba1\u5212\u4e2d\u4f7f\u7528\u7684\u5b57\u6bcd\u4ee3\u7801\u5982\u4e0b:
\nC \u2014\u2014\u2014\u9700\u8981\u786e\u8ba4,\u4f46\u4e0d\u7528\u6d4b\u91cf;
\nN\u2014\u2014\u2014\u4ec5\u9700\u521d\u59cb\u7684\u6821\u51c6;
\nS \u2014\u2014\u2014ISO18899\u4e2d\u6307\u5b9a\u7684\u6807\u51c6\u7684\u65f6\u95f4\u95f4\u9694;
\nU\u2014\u2014\u2014\u4f7f\u7528\u4e2d\u3002<\/p>\n

\u9664\u4e86\u8868 A.1\u5217\u51fa\u7684\u9879\u76ee\u5916,\u4e0b\u9762\u4f7f\u7528\u7684\u8bbe\u5907\u4e5f\u9700\u6309ISO18899\u8fdb\u884c\u6821\u51c6:
\n\u2014\u2014\u2014\u76d1\u63a7\u8c03\u8282\u6e29\u5ea6\u7684\u6e29\u5ea6\u8ba1;
\n\u2014\u2014\u2014\u6d4b\u5b9a\u8bd5\u6837\u521d\u59cb\u5c3a\u5bf8\u7684\u88c5\u7f6e;
\n\u2014\u2014\u2014\u6d4b\u91cf\u4f20\u70ed\u4ecb\u8d28\u6df1\u5ea6\u7684\u76f4\u5c3a\u3002<\/p>\n

\u9644\u5f55 B (\u8d44\u6599\u6027\u9644\u5f55) \u7cbe \u5bc6 \u5ea6<\/p>\n

B.1 \u603b\u5219<\/p>\n

\u4ee5\u4e0b\u5b9e\u9a8c\u5ba4\u95f4\u8bd5\u9a8c\u7a0b\u5e8f(ITP)\u57282017\u5e74\u5c55\u5f00\u3002 \u63cf\u8ff0\u91cd\u590d\u6027\u548c\u518d\u73b0\u6027\u503c\u7684\u6240\u6709\u8ba1\u7b97\u57fa\u4e8eISO19983:2017\u3002\u7cbe\u5bc6\u5ea6\u7684\u6982\u5ff5\u548c\u672f\u8bed\u53c2\u8003ISO19983\u3002 \u6309\u71672018\u5e74\u5728\u676d\u5dde(\u4e2d\u56fd)\u4e3e\u529e\u7684 TC45\/SC2\/WG4\u4f1a\u8bae\u4e2d\u7684\u51b3\u5b9a,\u672c\u6b21\u8d85\u51fa\u503c\u4e0d\u88ab\u5254\u9664,\u800c\u662f\u91c7
\n\u7528\u56de\u5f52\u7ebf\u4e0a\u7684\u6570\u503c\u4f5c\u4e3a\u66ff\u4ee3\u503c\u3002<\/p>\n

B.2 \u7cbe\u5bc6\u5ea6\u8bf4\u660e<\/p>\n

B.2.1 \u7a0b\u5e8f\u7ec6\u8282
\n\u6b64\u6b21ITP \u7531 ELASTOCON(\u745e\u5178)\u548c LRCCP(\u6cd5\u56fd)\u57282017\u5e74\u7ec4\u7ec7 \u548c\u5f00\u5c55\u3002 \u88c1\u53d6\u7684\u8bd5\u6837\u7531\u4e00\u4e2a\u5b9e \u9a8c\u5ba4\u51c6\u5907\u5e76\u53d1\u5f80\u5168\u90e810\u5bb6\u53c2\u52a0\u5b9e\u9a8c\u5ba4\u3002
\n\u8bd5\u9a8c\u4e2d\u4f7f\u7528\u4e86\u56db\u79cd\u6a61\u80f6,\u5206\u522b\u5236\u5907\u4e86 NR,EPDM,NBR \u548c FKM \u8bd5\u6837\u3002 \u8bd5\u6837\u7684\u5c3a\u5bf8\u6309\u7167ISO2921 (50 mm \u957f)\u5236\u5907\u3002 \u6bcf\u4e2a\u6027\u80fd\u5176\u7cbe\u5bc6\u5ea6\u6570\u636e\u4f7f\u7528\u5b9e\u9a8c\u5ba4\u7684\u6570\u91cf\u5728\u7cbe\u5bc6\u5ea6\u7ed3\u679c\u8868(\u8868 B.1~\u8868 B.4)\u4e2d\u7ed9\u51fa\u3002
\nITP \u8bd5\u9a8c\u5728\u8fde\u7eed\u4e24\u5468\u5185\u8fdb\u884c\u3002\u8fd9\u4e24\u5468\u7684\u89c4\u5b9a\u4e00\u5929\u5185\u9700\u5f97\u5230\u56db\u79cd\u6750\u6599\u7684 3 \u4e2a\u5355\u72ec\u6d4b\u91cf\u503c,\u6bcf \u5468\u7684\u8bd5 \u9a8c\u7ed3\u679c\u662f\u8fd9\u4e09\u4e2a\u5355\u72ec\u6d4b\u91cf\u503c\u7684\u4e2d\u503c\u3002\u6240\u6709\u5206\u6790\u57fa\u4e8e\u8fd9\u4e9b\u8bd5\u9a8c\u7ed3\u679c\u3002
\n\u9f13\u52b1\u53c2\u52a0\u5b9e\u9a8c\u5ba4\u5728ITP \u4e2d\u4f7f\u7528\u4e24\u4e2a\u540c\u7b49\u80fd\u529b\u7684\u64cd\u4f5c\u8005(\u82e5\u53ef \u80fd)\u3002 \u64cd\u4f5c\u8005 1 \u8d1f\u8d23\u7b2c\u4e00\u5468\u8bd5\u9a8c,\u64cd \u4f5c \u80052\u8d1f\u8d23\u7b2c\u4e8c\u5468\u8bd5\u9a8c\u3002\u4f7f\u7528\u4e0d\u540c\u8bd5\u7247\u3001\u4e0d\u540c\u64cd\u4f5c\u8005\u548c \u4e24\u5468\u5185\u91cd\u590d\u8bd5\u9a8c\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u5728\u6700\u7ec8\u6216\u5408\u5e76\u57fa\u7840 \u6570\u636e\u4e2d\u5305\u542b\u8fd9\u4e9b\u6b63\u5e38\u7684\u504f\u79bb\u6e90\u3002\u56e0\u6b64,\u8fd9\u4e9b\u7cbe\u5bc6\u5ea6\u6570\u636e\u6bd4\u4ee5\u5f80\u7684ITP \u7ed3\u679c (\u4e00 \u4e2a\u65f6\u95f4\u70b9\u8bc4\u4f30\u7684\u7cbe\u5bc6\u5ea6) \u8868\u73b0\u5f97\u66f4\u52a0\u53ef\u9760\u548c\u73b0\u5b9e\u3002
\n\u6bcf\u4e2a\u8bd5\u6837\u6d4b\u91cf TR10\u3001TR30\u3001TR50\u548c TR70\u3002
\nB.2.2 \u7cbe\u5bc6\u5ea6\u7684\u7ed3\u679c
\n\u7cbe\u5bc6\u5ea6\u7ed3\u679c\u5728\u8868 B.1~\u8868 B.4\u4e2d\u5217\u51fa\u3002 \u82e5\u6ca1\u6709\u6587\u4ef6\u8bc1\u660e\u8fd9\u79cd\u7cbe\u5bc6\u5ea6\u8bc4\u4f30\u7ed3\u679c\u5b9e\u9645\u4e0a\u9002\u7528\u4e8e\u6240\u6d4b\u8bd5\u7684\u4ea7\u54c1\u6216\u6750\u6599,\u5219 \u6b64\u6b21ITP \u8868\u660e\u7684\u7cbe\u5bc6\u5ea6\u7ed3\u679c\u4e0d\u80fd\u88ab\u4efb\u4f55\u6750\u6599\u6216\u4ea7\u54c1\u7ec4\u7ec7\u5e94\u7528\u5728\u53ef\u63a5\u53d7\u51c6\u5219\u6216\u68c0\u6d4b\u8bd5\u9a8c\u4e0a\u3002<\/p>\n

\n

1\u3001\u73b0\u6210\u8bd1\u6587\uff0c\u5230\u6b3e\u5373\u53d1\u3002<\/span>
\n2\u3001\u4e0b\u5355\u524d\u53ef\u4efb\u53d6\u6837\u9875\u9a8c\u8bc1\u8bd1\u6587\u8d28\u91cf\u3002<\/span>
\n3\u3001\u514d\u8d39\u63d0\u4f9b\u6b63\u89c4\u666e\u901a\u589e\u503c\u7a0e\u6570\u7535\u53d1\u7968\u3002<\/span>
\n4\u3001\u8bf7\u8054\u7cfb\u624b\u673a\/\u5fae\u4fe1: 13306496964\/Email: standardtrans@foxmail.com \u83b7\u53d6\u5b8c\u6574\u8bd1\u6587\u3002<\/span>
\n5\u3001\u672c\u82f1\u6587\u8bd1\u672c\u4e3a\u7eaf\u4eba\u5de5\u4e13\u4e1a\u7cbe\u7ffb\u7248\u672c\uff0c\u4fdd\u8bc1\u8bed\u6cd5\u672f\u8bed\u51c6\u786e\u7387\u548c\u4e13\u4e1a\u5ea6\uff01<\/span>
\n6\u3001\u4e13\u4e1a\u6e90\u4e8e\u4e13\u6ce8|ChinaAutoRegs \u59cb\u7ec8\u4e13\u6ce8\u4e8e\u6c7d\u8f66\u6807\u51c6\u7ffb\u8bd1\u9886\u57df\uff01<\/span>
\n7\u3001\u300c\u4e2d\u56fd\u6c7d\u8f66\u6807\u51c6\u8bd1\u6587\u5e93\u300d\u5df2\u6536\u5f55\u4e0a\u5343\u4e2a\u73b0\u884c\u6c7d\u8f66\u56fd\u5bb6\u6807\u51c6\u548c\u884c\u4e1a\u6807\u51c6\u7684\u82f1\u6587\u7248\u8bd1\u672c\uff0c\u6db5\u76d6\u4f20\u7edf\u71c3\u6cb9\u8f66\u3001\u65b0\u80fd\u6e90\u6c7d\u8f66\u548c\u6469\u6258\u8f66\u6807\u51c6\u5316\u4f53\u7cfb\uff01\u72ec\u5bb6\u6253\u9020\u5343\u4e07\u7ea7\u6c7d\u8f66\u4e13\u4e1a\u672f\u8bed\u5e93\u548c\u8bb0\u5fc6\u5e93\u3002<\/span><\/p>\n

1. The English Translation of this document (GB, GB\/T, QC\/T, CNCA, CQC, CAV, etc.) is readily available, and delivered immediately upon payment.<\/span>
\n2. You may request for sample pages to your preference before placing an order.<\/span>
\n3. Please contact standardtrans@foxmail.com for the complete PDF version in English.<\/span>
\n4. Almost all of Chinese automotive\/automobile standards, regulations and norms in effect have been included in our well-established database, providing one-stop, up-to-date, efficient and professional solution.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

ChinaAutoRegs\uff5cGB\/T 7758-2020 \u82f1\u6587\u7248\/\u7ffb\u8bd1\/Engl … \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[815,29,30,851,17,9,852,637,15,34,10,178,757,38,1078,7,11,724,18,723,19,14],"class_list":["post-1640","post","type-post","status-publish","format-standard","hentry","category-vi","tag-cav","tag-cnca","tag-cqc","tag-gb-2024","tag-gb-english","tag-gb-translated","tag-gb-t-2024","tag-gb-t-7758-2020","tag-gb-t-english","tag-gb-t2021","tag-gb-t","tag-gb2021","tag-gbt-7758-2020","tag-gb","tag-qc-t","tag-723","tag-19","tag-14"],"views":1220,"_links":{"self":[{"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/posts\/1640","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1640"}],"version-history":[{"count":5,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/posts\/1640\/revisions"}],"predecessor-version":[{"id":5785,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/posts\/1640\/revisions\/5785"}],"wp:attachment":[{"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}