Hardness test

Cov hlau tsis muaj cov kav hlau tsis muaj lub qhov nruab nrab ntawm 6.0 hli los yog ntau tshaj ib qho thiab ib qho annealed stainless hlau raj nrog ib phab ntsa thickness ntawm 13 hli lossis tsawg dua. Nws yuav ua tau W-B75 yam Vickers hardness tester. Nws yog ib qho yooj yim thiab yooj yim rau kev ntsuam xyuas thiab yog tsim rau kev ceev thiab tsis yog kev soj ntsuam ntawm cov kav hlau tsis txhuam. Stainless hlau plab nrog ib lub puab inch ntawm ntau tshaj 30 hli thiab ib phab ntsa thickness ntau tshaj 1.2 hli raug kuaj nrog Rockwell hardness tester mus kuaj HRB thiab HRC nyuaj. Stainless hlau plab nrog ib lub puab inch ntawm ntau tshaj 30 hli thiab ib lub phab ntsa thickness ntawm tsawg tshaj 1.2 hli raug kuaj nrog pob zeb Rockwell hardness tester mus sim HRT los yog HRN nyuaj. Rau cov kav hlau tsis muaj kav hlau uas muaj qhov sib npaug ntawm 0 hli thiab ntau dua 4.8 hli, qhov nyuaj ntawm HR15T raug kuaj los ntawm Rockwell hardness tester tshwj xeeb rau cov kav dej. Thaum lub hau suab ntawm lub plhaub tsis xeb hlau tsis loj tshaj 26 hli, qhov nyuaj ntawm lub phab ntsa sab hauv ntawm lub raj kuj tuaj yeem soj ntsuam los ntawm Rockwell los yog Rockwell hardness tester.