Nws yog ib qho tseem ceeb heev los ntsuam xyuas qhov hardness ntawm lub thauj tog rau nkoj ua hauj lwm clip. Cov clip yuav tsum muaj qee qhov hardness thaum siv los xyuas kom meej qhov kev ntseeg tau thiab ua haujlwm ntev ntawm nws txoj haujlwm. Lub tuam txhab Laihua tuaj yeem hloov kho ntau yam tshwj xeeb clamps raws li kev xav tau, thiab tuaj yeem siv Laihua lub hardness tester rau kev kuaj hardness.
Lub hardness xeem tus qauv ntawm thauj tog rau nkoj clip feem ntau yog hais txog:
1. Rockwell hardness GB/T 230.1-2018
Cov txheej txheem no siv cov txheej txheem Rockwell hardness test thiab HRC Rockwell hardness nplai rau kev sim, Qhov kev sim no yooj yim rau kev khiav lag luam thiab yog qhov kev xaiv zoo rau cov neeg siv khoom
2. Brinell hardness GB/T231.1-2018.
Tus qauv no siv Brinell hardness HB nplai rau kev sim.
Cov qauv ntsuas ntsuas yog hais txog:
GB/T 14370-2015 los yog JT/T 329-2010.
Vim qhov tshwj xeeb ntawm cov duab ntawm lub thauj tog rau nkoj clip, raws li tus neeg siv khoom qhov clip taper loj thiab clip puab txoj kab uas hla, thaum yuav ib lub hardness tester, nws yog ib qho tsim nyog yuav tau kho cov cuab yeej cuab tam raws li qhov yuav tsum tau ua kom paub meej qhov tseeb ntawm qhov ntsuas tus nqi thiab txuas ntxiv. kev pab lub neej ntawm hardness tester. Yog tias tsim nyog, thov xa cov qauv mus kuaj.
Txoj hauv kev rau kev sim cov pob txha toughness ntawm cemented carbide cov cuab yeej los ntawm Vickers hardness (sivVickers hardness tester):
Lub hardness ntawm cemented carbide feem ntau yuav tsum tau sim siv Rockwell hardness A nplai. Thaum lub thickness ntawm lub workpiece los yog qauv yog tsawg tshaj li 1.6 hli, Vickers hardness txoj kev yuav siv tau rau kev ntsuam xyuas. Yog li dab tsi yog txoj hauv kev los ntsuas qhov tawg toughness ntawm cemented carbide cov cuab yeej?
Fracture toughness test standard and fracture toughness test method siv cov qauv rau cov khoom siv cemented carbide: JB/T 12616-2016;
Txoj kev xeem yog raws li nram no:
Ua ntej, ua kom lub workpiece mus rau hauv tus qauv, ces polish qhov saum npoo ntawm cov qauv mus rau hauv daim iav nto, thiab muab tso rau hauv lub microhardness tester los tsim ib qho indentation ntawm polished nto nrog lub conical pob zeb diamond indenter ntawm hardness tester, yog li ntawd. hais tias prefabricated tawg yog generated ntawm plaub vertices ntawm indentation.
Tus nqi tawg toughness (KIC) yog xam raws li qhov indentation load P thiab indentation crack extension length C.
Laizhou Laihua Testing Instrument Factory yeej ib txwm muaj los teb cov lus nug koj muaj.
Post lub sij hawm: Oct-25-2024
