Liteko tse 'maloa tse tloaelehileng tsa Vickers hardness tester

 

1. Sebelisa Vickers hardness tester ea likarolo tse cheselitsoeng (teko ea boima ba Weld Vickers):

Kaha microstructure ea karolo e kopanetsoeng ea weldment (weld seam) nakong ea ho tjheseletsa e tla fetoha nakong ea ts'ebetso ea sebopeho, e ka 'na ea theha sehokelo se fokolang mohahong o cheselitsoeng.Ho thatafala ha tjheseletsa ho ka bontsha ka ho toba hore na tshebetso ya ho tjheseletsa e a utlwahala.Joale Vickers hardness Mokhoa oa ho hlahloba ke mokhoa o thusang ho lekola boleng ba li-welds.Vickers hardness tester ea Laizhou Laihua Hardness Tester Factory e ka etsa tlhahlobo ea boima ba likarolo tse cheselitsoeng kapa libaka tse cheselletsang.Ha u sebelisa Vickers hardness tester ho leka likarolo tse cheselitsoeng, maemo a latelang a liteko a lokela ho hlokomeloa:

Bophahamo ba sampole: Pele re etsa liteko, re sila weld hore e lekoe ho etsa hore bokaholimo ba eona bo boreleli, bo se na lera la oxide, mapetsong le liphoso tse ling.

Moleng o bohareng oa weld, nka ntlha sebakeng se kobehileng ka limilimithara tse ling le tse ling tse 100 bakeng sa tlhahlobo.

Ho khetha matla a fapaneng a liteko ho tla fella ka liphetho tse fapaneng, kahoo re tlameha ho khetha matla a nepahetseng a tlhahlobo pele re etsa liteko.

2. Mokhoa oa ho sebelisa Vickers hardness tester (micro Vickers hardness tester) ho bona botebo ba lera le thata?

Joang ho bona botebo ba lera le thata la likarolo tsa tšepe ka kalafo ea bokaholimo joalo ka carburizing, nitriding, decarburization, carbonitriding, joalo-joalo, le likarolo tsa tšepe tse tingoeng?

Botebo bo sebetsang bo thata bo thata bo sebelisoa haholo-holo ho futhumatsa sebakeng sa heno ho baka liphetoho tsa sebopeho le ts'ebetso holim'a tšepe ho fihlela phello ea boima bo ntseng bo eketseha le matla le ho tiea.E bolela ho lekanya ho tloha ka tataiso e otlolohileng ea karolo ea bokaholimo ho ea moeling o boletsoeng oa microstructure.Kapa sebaka se thata sa lera la microhardness e boletsoeng.Hangata re sebelisa mokhoa oa ho thatafala oa gradient oa Vickers hardness tester ho bona botebo bo sebetsang ba lera le thata la sesebelisoa.Molao-motheo ke ho lemoha botebo bo matla bo thatafalitsoeng bo ipapisitseng le phetoho ea boima ba micro-Vickers ho tloha holimo ho ea bohareng ba karolo.

Bakeng sa mekhoa e ikhethileng ea ts'ebetso, ka kopo sheba video ea ts'ebetso ea Vickers hardness tester ea k'hamphani ea rona.Se latelang ke selelekela sa tšebetso e bonolo:

Lokisetsa sampula kamoo ho hlokahalang, 'me sebaka sa tlhahlobo se lokela ho belisoa ho fihlela seiponeng.

Khetha matla a teko ea Vickers hardness tester.The hardness gradient e lekanngoa libakeng tse peli kapa ho feta.Ho thatafala ha Vickers ho lekanyetsoa moleng o le mong kapa ho feta tse bapileng ho ea holimo.

Ho hula lekhalo le thata ho latela data e lekantsoeng, ho ka tsejoa hore sebaka se otlolohileng ho tloha holim'a karolo ho ea ho 550HV (ka kakaretso) ke botebo bo thata bo thata.

3. Mokhoa oa ho sebelisa Vickers hardness tester bakeng sa tlhahlobo ea fracture toughness (ho thatafala ha fracture Vickers hardness test method)?

Ho thatafala ha fracture ke boleng ba ho hanyetsa bo bontšoang ke thepa ha mohlala kapa karolo e robeha tlas'a maemo a sa tsitsang a kang mapetsong kapa likoli tse kang crack.

Ho thatafala ha fracture ho emela bokhoni ba thepa ho thibela ho ata ha crack 'me ke sesupo sa bongata ba ho tiea ha thepa.

Ha u etsa teko ea boima ba ho robeha, qala ka bentša bokaholimo ba sampole ea teko ho ea bokaholimo ba seipone.Ho Vickers hardness tester, sebelisa "conical diamond indenter" ea Vickers hardness tester ho etsa indentation sebakeng se bentšitsoeng ka boima ba 10Kg.Mapetso a entsoeng esale pele a hlahisoa likhutlong tse 'ne tsa letšoao.Ka kakaretso re sebelisa Vickers hardness tester ho fumana data ea fracture toughness.