1ãHB - å¸æ°ç¡¬åº¦:
å¸æ°ç¡¬åº¦(HB)ä¸è¬ç¨äºææè¾è½¯çæ¶åï¼å¦æè²éå±ãçå¤çä¹åæéç«åçé¢éãæ´æ°ç¡¬åº¦(HRC)ä¸è¬ç¨äºç¡¬åº¦è¾é«çææï¼å¦çå¤çåç硬度ççã
å¸å¼ç¡¬åº¦(HB)æ¯ä»¥ä¸å®å¤§å°çè¯éªè½½è·ï¼å°ä¸å®ç´å¾ç淬硬é¢çæ硬质åéçåå
¥è¢«æµéå±è¡¨é¢ï¼ä¿æè§å®æ¶é´ï¼ç¶åå¸è·ï¼æµé被æµè¡¨é¢åçç´å¾ãå¸å¼ç¡¬åº¦å¼æ¯è½½è·é¤ä»¥åçç形表é¢ç§¯æå¾çåãä¸è¬ä¸ºï¼ä»¥ä¸å®çè½½è·(ä¸è¬3000kg)æä¸å®å¤§å°(ç´å¾ä¸è¬ä¸º10mm)ç淬硬é¢çåå
¥ææ表é¢ï¼ä¿æä¸æ®µæ¶é´ï¼å»è½½åï¼è´è·ä¸å
¶åçé¢ç§¯ä¹æ¯å¼ï¼å³ä¸ºå¸æ°ç¡¬åº¦å¼(HB)ï¼åä½ä¸ºå
¬æ¤å/mm2(N/mm2)ã
2ãHR-æ´å¼ç¡¬åº¦
æ´å¼ç¡¬åº¦ï¼HR-ï¼æ¯ä»¥åçå¡æ§å形深度æ¥ç¡®å®ç¡¬åº¦å¼ææ ã以0.002毫米ä½ä¸ºä¸ä¸ªç¡¬åº¦åä½ãå½HB>450æè
è¯æ ·è¿å°æ¶ï¼ä¸è½éç¨å¸æ°ç¡¬åº¦è¯éªèæ¹ç¨æ´æ°ç¡¬åº¦è®¡éãå®æ¯ç¨ä¸ä¸ªé¡¶è§120°çéåç³åé¥ä½æç´å¾ä¸º1.59ã3.18mmçé¢çï¼å¨ä¸å®è½½è·ä¸åå
¥è¢«æµææ表é¢ï¼ç±åçç深度æ±åºææç硬度ãæ ¹æ®è¯éªææ硬度çä¸åï¼åä¸ç§ä¸åçæ 度æ¥è¡¨ç¤ºï¼
(1)HRCå«ææ¯æ´å¼ç¡¬åº¦Cæ å°ºï¼
(2)HRCåHBå¨ç产ä¸çåºç¨é½å¾å¹¿æ³
(3)HRCéç¨èå´HRC 20ï¼ï¼67ï¼ç¸å½äºHB225ï¼ï¼650
è¥ç¡¬åº¦é«äºæ¤èå´åç¨æ´å¼ç¡¬åº¦Aæ å°ºHRAãè¥ç¡¬åº¦ä½äºæ¤èå´åç¨æ´å¼ç¡¬åº¦Bæ å°ºHRBãå¸å¼ç¡¬åº¦ä¸éå¼HB650,ä¸è½é«äºæ¤å¼ã
(4)æ´æ°ç¡¬åº¦è®¡Cæ å°ºä¹å头为顶è§120度çéåç³åé¥ï¼è¯éªè½½è·ä¸ºä¸ç¡®å®å¼ï¼ä¸å½æ åæ¯150å
¬æ¤åã
å¸æ°ç¡¬åº¦è®¡ä¹å头为淬硬é¢çï¼HBS)æ硬质åéçï¼HBWï¼ï¼è¯éªè½½è·éçç´å¾ä¸åèä¸åï¼ä»3000å°31.25å
¬æ¤åã
(5)æ´å¼ç¡¬åº¦åçå¾å°ï¼æµéå¼æå±é¨æ§ï¼é¡»æµæ°ç¹æ±å¹³åå¼ï¼éç¨æååèçï¼å½äºæ ææ£æµä¸ç±»ã
å¸å¼ç¡¬åº¦åçè¾å¤§ï¼æµéå¼åï¼ä¸éç¨æååèçï¼ä¸è¬ä¸å½äºæ ææ£æµä¸ç±»ã
(6)æ´å¼ç¡¬åº¦ç硬度å¼æ¯ä¸æ åæ°ï¼æ²¡æåä½ãï¼å æ¤ä¹ æ¯ç§°æ´å¼ç¡¬åº¦ä¸ºå¤å°åº¦æ¯ä¸æ£ç¡®çãï¼
å¸å¼ç¡¬åº¦ç硬度å¼æåä½ï¼ä¸åææ强度æä¸å®çè¿ä¼¼å
³ç³»ã
(7)æ´å¼ç¡¬åº¦ç´æ¥å¨è¡¨çä¸æ¾ç¤ºãä¹å¯ä»¥æ°åæ¾ç¤ºï¼æä½æ¹ä¾¿ï¼å¿«æ·ç´è§ï¼éç¨äºå¤§éç产ä¸ã
å¸å¼ç¡¬åº¦éè¦ç¨æ¾å¾®éæµéåçç´å¾ï¼ç¶åæ¥è¡¨æ计ç®ï¼æä½è¾ç¹çã
(8)å¨ä¸å®æ¡ä»¶ä¸ï¼HBä¸HRCå¯ä»¥æ¥è¡¨äºæ¢ãå
¶å¿ç®å
¬å¼å¯å¤§æ¦è®°ä¸ºï¼1HRCâ1/10HBã
温馨提示:答案为网友推荐,仅供参考