1. Siv Vickers hardness tester ntawm welded qhov chaw (Weld Vickers hardness test) txoj kev:
Txij li thaum lub microstructure ntawm qhov sib koom ua ke ntawm qhov vuam (weld seam) thaum lub sij hawm vuam yuav hloov thaum lub sij hawm tsim, nws yuav tsim ib tug tsis muaj zog txuas nyob rau hauv lub welded qauv.Lub hardness ntawm vuam tuaj yeem cuam tshuam ncaj qha seb cov txheej txheem vuam puas tsim nyog.Tom qab ntawd Vickers hardness Ib txoj kev tshuaj xyuas yog ib txoj hauv kev uas pab ntsuas qhov zoo ntawm welds.Vickers hardness tester ntawm Laizhou Laihua Hardness Tester Factory tuaj yeem ua qhov kev sim hardness ntawm qhov chaw welded lossis qhov chaw vuam.Thaum siv Vickers hardness tester los ntsuas qhov chaw welded, cov kev sim hauv qab no yuav tsum raug sau tseg:
Flatness ntawm cov qauv: Ua ntej kev sim, peb zom cov weld mus kuaj kom nws nto du, tsis muaj oxide txheej, tawg thiab lwm yam tsis xws luag.
Ntawm txoj kab nruab nrab ntawm cov vuam, siv ib qho taw tes ntawm qhov nkhaus ntawm txhua 100 mm rau kev sim.
Xaiv lub zog sib txawv yuav ua rau cov txiaj ntsig sib txawv, yog li peb yuav tsum xaiv lub zog ntsuas tsim nyog ua ntej kuaj.
2. Yuav ua li cas siv Vickers hardness tester (micro Vickers hardness tester) los xyuas qhov tob ntawm hardened txheej?
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau, nws yog qhov yuav tsum tau kuaj xyuas qhov tob ntawm txheej txheej steel hlau nrog kev kho deg xws li carburizing, nitriding, decarburization, carbonitriding, thiab lwm yam.
Qhov zoo hardened txheej qhov tob yog tsuas yog siv nyob rau hauv lub zos tshav kub ntawm lub nto los ua structural thiab kev ua tau zoo hloov nyob rau hauv lub nto ntawm cov hlau kom ua tiav cov nyhuv ntawm nce hardness thiab zog thiab toughness.Nws yog hais txog kev ntsuas los ntawm txoj kab ntsug ntawm qhov chaw mus rau thaj tsam microstructure.Los yog hardened txheej nrug ntawm qhov teev microhardness.Feem ntau peb siv txoj kev gradient hardness ntawm Vickers hardness tester los xyuas qhov zoo hardened txheej tob ntawm lub workpiece.Lub hauv paus ntsiab lus yog txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm, nws, nws raug nquahu kom siv cov tshuaj tua kab mob, nws raug nquahu kom kuaj xyuas cov txheej txheem hardened zoo ntawm qhov tob ntawm micro-Vickers.
Rau kev ua haujlwm tshwj xeeb, thov xa mus rau peb lub tuam txhab Vickers hardness tester ua haujlwm video.Cov hauv qab no yog ib qho kev qhia yooj yim ua haujlwm:
Npaj cov qauv raws li qhov yuav tsum tau ua, thiab qhov chaw kuaj yuav tsum tau polished rau daim iav saum npoo.
Xaiv qhov kev xeem quab yuam ntawm Vickers hardness tester.Lub hardness gradient yog ntsuas ntawm ob lossis ntau qhov chaw.Lub Vickers hardness yog ntsuas ntawm ib los yog ntau dua kab sib npaug perpendicular rau saum npoo.
Kos lub hardness nkhaus raws li cov ntaub ntawv ntsuas, nws tuaj yeem paub tias qhov kev ncua deb ntawm qhov chaw ntawm qhov chaw mus rau 550HV (feem ntau) yog cov txheej txheem hardened qhov tob.
3. Yuav siv Vickers hardness tester li cas rau kev kuaj pob txha toughness (fracture toughness Vickers hardness testing method)?
Fracture toughness yog qhov kev tiv thaiv tus nqi uas pom los ntawm cov khoom siv thaum cov qauv lossis cov khoom tawg hauv qhov tsis ruaj khov xws li tawg lossis tawg zoo li qhov tsis xws luag.
Fracture toughness sawv cev rau lub peev xwm ntawm cov khoom siv los tiv thaiv kev tawg tawg thiab yog ib qho qhia ntau txog qhov toughness ntawm cov khoom.
Thaum ua qhov kev ntsuam xyuas tawg, ua ntej polish qhov saum npoo ntawm cov qauv kuaj mus rau daim iav saum npoo.Ntawm Vickers hardness tester, siv lub conical pob zeb diamond indenter ntawm Vickers hardness tester ua ib qho indentation ntawm polished nto nrog ib tug load ntawm 10Kg.Prefabricated tawg yog tsim nyob rau ntawm plaub vertices ntawm lub cim.Peb feem ntau siv Vickers hardness tester kom tau cov ntaub ntawv puas toughness.
Lub sij hawm xa tuaj: Plaub Hlis-25-2024
