Qhov sib txawv ntawm Vickers hardness tester thiab microhardness tester

Vim yog qhov kev sim Vickers hardness thiab microhardness, lub kaum sab xis ntawm lub indenter siv rau kev ntsuas yog tib yam. Cov neeg siv khoom yuav tsum xaiv Vickers hardness tester li cas? Hnub no, kuv yuav piav qhia luv luv txog qhov sib txawv ntawm Vickers hardness tester thiab microhardness tester.

Kev faib qhov loj ntawm lub zog sim Vickers hardness thiab microhardness tester scale

Vickers hardness tester: lub zog xeem F≥49.03N los yog≥HV5

Me me Vickers hardness: kev sim zog 1.961N≤F < 49.03N los yog HV0.2 ~ < HV5

Microhardness tester: kev sim zog 0.09807N≤F < 1.96N los yog HV0.01 ~ HV0.2

Yog li ntawd, peb yuav tsum xaiv lub zog kuaj xyuas li cas?

Peb yuav tsum ua raws li lub hauv paus ntsiab lus tias qhov loj dua qhov indentation, qhov tseeb dua qhov ntsuas tus nqi yog tias cov xwm txheej workpiece tso cai, thiab xaiv raws li qhov xav tau, vim tias qhov me dua qhov indentation, qhov yuam kev ntau dua hauv kev ntsuas qhov ntev ntawm kab pheeb ces kaum, uas yuav ua rau muaj qhov yuam kev ntawm qhov nyuaj ntxiv.

Lub zog sim ntawm lub microhardness tester feem ntau yog nruab nrog: 0.098N (10gf), 0.245N (25gf), 0.49N (50gf), 0.98N (100gf), 1.96N (200gf), 2.94 (300gf), 4.90N (500gf), 9.80N (1000gf) (19.6N (2.0Kgf) xaiv tau)

Lub magnification feem ntau yog nruab nrog: 100 zaug (kev soj ntsuam), 400 zaug (kev ntsuas)

Qib kev sim zog ntawm Vickers hardness tester tuaj yeem muab faib ua: 2.94N (0.3Kgf), 4.9N (0.5Kgf), 9.8N (1.0Kgf), 19.6N (2.0Kgf), 29.4N (3.0Kgf), 49.0N (5.0Kgf), 98.0N (10Kgf), 196N (20Kgf), 294N (30Kgf), 490N (50Kgf) (cov qauv sib txawv muaj cov qauv sib txawv ntawm kev sim zog.)

Qhov kev teeb tsa loj dua feem ntau yog: 100 npaug, 200 npaug

Lub Vickers hardness tester ntawm Shandong Shancai / Laizhou Laihua Testing Instrument tuaj yeem ua qhov kev ntsuam xyuas hardness ntawm cov khoom welded lossis thaj chaw vuam.

Raws li qhov ntsuas qhov nyuaj, qhov zoo ntawm qhov vuam thiab kev hloov pauv hlau tuaj yeem txiav txim siab. Piv txwv li, qhov nyuaj siab dhau yuav yog vim muaj cua sov ntau dhau thaum vuam, thaum qhov nyuaj qis dhau yuav qhia txog qhov vuam tsis txaus lossis teeb meem zoo ntawm cov khoom siv.

Lub kaw lus ntsuas Vickers uas tau teeb tsa yuav khiav ib qho kev pab cuam sim ua haujlwm tag nrho thiab tso saib thiab sau cov txiaj ntsig sib xws.

Rau cov txiaj ntsig ntawm kev ntsuas ntsuas, daim ntawv qhia duab sib xws tuaj yeem tsim tau.

Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias thaum xaiv ib cheeb tsam sawv cev ntawm​qhov vuam ua qhov chaw sim, xyuas kom tseeb tias thaj chaw no tsis muaj qhov hws, tawg lossis lwm yam tsis zoo uas yuav cuam tshuam rau cov txiaj ntsig sim.

Yog tias koj muaj lus nug txog kev tshuaj xyuas weld, thov hu rau peb