Mokhoa oa tlhahlobo ea boima ba Vickers le litemoso

1 Boitokisetso pele ho tlhahlobo

1) Teko ea boima le indenter e sebelisetsoang tlhahlobo ea boima ba Vickers e lokela ho lumellana le litokisetso tsa GB/T4340.2;

2) Mocheso oa kamore ka kakaretso o lokela ho laoloa ka har'a mefuta e fapaneng ea 10 ~ 35 ℃. Bakeng sa liteko tse nang le litlhoko tse nepahetseng tse phahameng, e lokela ho laoloa ho (23±5)℃.

2 mehlala

1) Sebaka sa mohlala se lokela ho ba se bataletseng le se boreleli. Ho kgothaletswa hore sampuli ya bokahodimo bo be boima bo lokela ho finyella ditlhoko: Boleng bo kahodimodimo ba parameter ya bokahodimo: Sample ya Vickers hardness 0.4 (Ra)/μm; mojaro o monyenyane Vickers sampuli ea boima ba 0.2 (Ra)/μm; sampole ea boima ba micro Vickers 0.1 (Ra)/μm

2) Bakeng sa lisampole tse nyane tsa Vickers le micro Vickers, ho khothaletsoa ho khetha polishing e nepahetseng le polishing ea electrolytic bakeng sa kalafo ea bokaholimo ho latela mofuta oa thepa.

3) Botenya ba sampole kapa lera la teko e lokela ho ba bonyane makhetlo a 1.5 bolelele ba diagonal ea indentation.

4) Ha u sebelisa mojaro o monyane le li-Vickers tse nyane bakeng sa tlhahlobo, haeba sampole e nyane haholo kapa e sa tloaeleha, sampole e lokela ho kenngoa kapa e koaletsoe ka mochini o khethehileng pele o etsoa tlhahlobo.

3Mokhoa oa teko

1) Khetho ea matla a teko: Ho ea ka boima, botenya, boholo, joalo-joalo tsa sampuli, matla a teko a bontšitsoeng ho Lethathamo la 4-10 a lokela ho khethoa bakeng sa teko. .

2) Nako ea kopo ea matla a teko: Nako ho tloha qalong ea ts'ebetso ea matla ho fihlela ho phethoa ha kopo ea matla a teko e feletseng e lokela ho ba ka hare ho 2 ~ 10 s. Bakeng sa liteko tse thata tsa Vickers le Vickers tse nyane, lebelo la ho theoha ha inndenter ha lea lokela ho feta 0.2 mm / s. Nako ea ho ts'oara matla a teko ke 10 ~ 15 s. Bakeng sa lisebelisoa tse bonolo haholo, nako ea ho ts'oara e ka atolosoa, empa phoso e lokela ho ba ka hare ho 2.

3) Sebaka ho tloha bohareng ba ho kenella ho ea moeling oa sampuli: Lisebelisoa tsa tšepe, tsa koporo le tsa koporo li lokela ho ba bonyane makhetlo a 2,5 bolelele ba diagonal tsa indentation; litšepe tse khanyang, loto, thini le li-alloys tsa tsona li lokela ho ba bonyane makhetlo a 3 bolelele ba diagonal tsa indentation. Sebaka se pakeng tsa litsi tsa li-indentations tse peli tse haufi: bakeng sa li-alloys tsa tšepe, tsa koporo le tsa koporo, e lokela ho ba bonyane makhetlo a 3 bolelele ba moeli oa diagonal oa letšoao la ho emisa; bakeng sa litšepe tse bobebe, loto, thini le lialloys tsa tsona, e lokela ho ba bonyane makhetlo a 6 bolelele ba mohala oa diagonal oa indentation.

4) Lekanya palo ea lipalo tsa bolelele ba li-diagonal tse peli tsa indentation, 'me u fumane boleng ba boima ba Vickers ho latela tafole, kapa u bale boleng ba boima ho latela foromo.

Phapang ka bolelele ba li-diagonal tse peli tsa indentation sefofaneng ha ea lokela ho feta 5% ea boleng bo tloaelehileng ba li-diagonal. Haeba e feta, e lokela ho tsejoa tlalehong ea teko.

5) Ha u lekoa ka sampuli ea holim'a e kobehileng, liphetho li lokela ho lokisoa ho latela tafole.

6) Ka kakaretso, ho kgothaletswa ho tlaleha litekanyetso tsa teko ea boima ba lintlha tse tharo bakeng sa sampole ka 'ngoe.

4 Sehlopha sa Vickers hardness tester

Ho na le mefuta e 2 ea liteko tse sebelisoang hangata tsa Vickers hardness. Se latelang ke selelekela sa tšebeliso e sebelisoang hangata ea Vickers hardness tester:

1. Mofuta oa tekanyo ea mahlo;

2. Mofuta oa tekanyo ea software

Sehlopha sa 1: Mofuta oa tekanyo ea leihlo Likarolo: Sebelisa leihlo ho lekanya. Tšebeliso: Mochine o etsa (diamond ◆) indentation, 'me bolelele ba diagonal ba daemane bo lekanngoa ka leihlo la mahlo ho fumana boleng ba boima.

Sehlopha sa 2: Mofuta oa tekanyo ea software: Likarolo: Sebelisa software ea boima ho metha; e loketseng le e bonolo mahlong; e ka lekanya boima, bolelele, boloka litšoantšo tsa indentation, litlaleho tsa litaba, joalo-joalo Tšebeliso: Mochine o etsa (diamond ◆) indentation, 'me khamera ea digital e bokella indentation khomphuteng,' me boleng ba boima bo lekanngoa khomphuteng.

5Sehlopha sa software: Mefuta e 4 ea mantlha, mofuta oa othomathike oa turret, mofuta oa semi-automatic, le mofuta oa othomathike ka botlalo.

1. Phetolelo ea motheo

E khona ho lekanya boima, bolelele, ho boloka litšoantšo tsa indentation, litlaleho tsa litaba, joalo-joalo;

2.Control automatic turret version software e ka laola hardness tester turret, joalo ka, lense ea sepheo, indenter, loading, joalo-joalo;
3.Semi-automatic version e nang le tafole ea tlhahlobo ea XY ea motlakase, lebokose la taolo ea sethala sa 2D; Ntle le ts'ebetso ea othomathike ea turret, software e ka boela ea beha sebaka le lintlha, matheba a othomathiki, tekanyo ea othomathike, joalo-joalo;
4.Phetolelo e ikemetseng ka botlalo e nang le tafole ea tlhahlobo ea XY ea motlakase, lebokose la taolo ea sethala sa 3D, tsepamiso ea Z-axis; Ho phaella mosebetsing oa semi-automatic version, software e boetse e na le mosebetsi oa ho tsepamisa maikutlo oa Z-axis;

6Mokhoa oa ho khetha e loketseng Vickers hardness tester

Theko ea Vickers hardness tester e tla fapana ho latela tlhophiso le ts'ebetso.

1. Haeba u batla ho khetha e theko e tlaase, u ka khetha:

Thepa e nang le skrine e nyenyane ea LCD le ho kenya letsoho diagonal ka letsoho ka leihlo la mahlo;

2. Haeba u batla ho khetha sesebelisoa se bolokang chelete hantle, u ka khetha:

Thepa e nang le skrine e kholo ea LCD, leihlo le nang le encoder ea digital, le mochine oa khatiso o hahiloeng;

3. Haeba u batla sesebelisoa sa maemo a holimo, u ka khetha:

Thepa e nang le sekirini se ts'oaroang, senotlolo se koetsoeng, sesebelisoa sa mahlo se nang le mochini oa khatiso (kapa USB flash drive), sekoti sa ho phahamisa liboko, le encoder ea dijithale;

4. Haeba u nahana hore hoa khathala ho metha ka lesela la mahlo, joale u ka khetha:

E na le sistimi ea ts'ebetso ea ts'ebetso ea CCD hardness, lekanya komporong ntle le ho sheba leihlo la mahlo, le bonolo, le hlakileng ebile le potlakile. U ka boela ua hlahisa litlaleho le ho boloka litšoantšo tsa indentation, joalo-joalo.

5. Haeba u batla ts'ebetso e bonolo le automation e phahameng, joale u ka khetha:

Mohlahlobi oa boima oa Vickers o itirisang le oa ho lekanya boima ba Vickers ka botlalo

Likarolo: beha sebaka le palo ea lintlha, ka boits'oaro le ka mokhoa o tsoelang pele, 'me u itekanye ka bo eona.