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标题: é“??¤?????¤????????????????è?? [打印本页]
作者: admin    时间: 2013-8-9 11:22
标题: é“??¤?????¤????????????????è??
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1.????°???????(HB)
????????????è??è?·(???è??3000kg)??????????¤§?°?(?????????è?????10mm)????·????é’????????…?????–?è?¨é??????????????????—?é—???????è????????è??è?·????…?????—?é???§??????”????????????????°??????????(HB)?????????????…??–¤???/mm2 (N/mm2)???
2.????°???????(HR)
??“HB>450??–è?…è????·è???°??—???????è??é???”¨????°???????è??é??è???”??”¨????°???????è??é????????????”¨??????é??角120?°???é?‘?????????é”???“??–?????????1.59???3.18mm???é’?????????¨??????è??è?·???????…?è?????????–?è?¨é??????”±????—?????·±????±????????–???????????????????è??é??????–????????????????????????‰?§???????????????????è?¨?¤????
?·         HRA??????é???”¨60kgè??è?·?’?é’????é”?????…???¨?±???—?????????????”¨????????????é?????????–?(??????è?¨???é?‘??‰)???
?·         HRB??????é???”¨100kgè??è?·?’???????1.58mm?·???????é’????????±???—?????????????”¨?????????è????????????–?(???é?????é’????é“?é“???‰)???
?·         HRC??????é???”¨150kgè??è?·?’?é’????é”?????…???¨?±???—?????????????”¨????????????é?????????–?(????·????é’???‰)???
3 ????°???????(HV)
???120kg?????…???è??è?·?’?é??角???136?°???é?‘???????–????é”?????…???¨????…?????–?è?¨é??????”¨????–?????—??????‘???è?¨é???§?é?¤???è??è?·????????????????°???????HV???(kgf/mm2)???

2 C' E" ~: k- D
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2 B0 N, @  e5 E: _( d, u6 u$ w' i   ????°???????è??é???????°????‰?????”¨???????§????é??????—???????è??é?????????????‰?§?????°????????§?????????????98.07N(???10kgf)???????????????????—??·±???è????—????????????????°?A????”¨?????????é”?è?±???????¤????????????????è??588.4N(???60kgf)???????°?B????”¨???????????????1.588mm(1/16è?±???)???é’??????????????¤????????????????è??980.7N(???100kgf)???è??????°?C????”¨???????°?A????????????é”?è?±?????????????¤?????????????????????????1471N(???150kgf)????????¤????°?Bé???”¨??????è??è?????????–????è??????°?Cé???”¨è????????????–???? 2 U$ }" L. F7 @( u. n$ F
   ???è·?è????????é?‘?±?????–????????§?????????????é—????????????????????????????é—??…·??‰è?‘???????????”?…??????????????????????????”±è?·?§???‘??§????????—????’???§?????‘??§????????—???????????????????–??????????è??é???????‘??§????????—???è??é??????????????????°±è??é????????????§?????–?????????—?…?????????????è??????????????é“??¤?????–???—??‰?????????????°??????????????°??????????????°??????????????…§è?¨???????–????é’???????????????????????????—?????????è?¨?????????é“????????¨??…·???é“??¤???‰?????????????¤?????¨???? ???????–????é“??¤?????¤????????¨?è??è??è?????è?·???é?…???

& V% J" t/ m( C; B5 ^6 f6 e9 mè????°é“??¤????è?·???????·????é“??¤?é“???????http://item.taobao.com/item.htm?spm=a230r.1.0.0.zaWxgj&id=26629580049
作者: admin    时间: 2019-4-1 23:00




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