Tlhaloso ea Ho thatafala

Ho mahlale a thepa, ho thatafala ke tekanyo ea khanyetso ea deformation ea polasetiki ea lehae e bakoang ke ho indentation ka mochini kapa abrasion. Ka kakaretso, lisebelisoa tse fapaneng li fapane ka thata-thata ea tsona; mohlala, litšepe tse thata tse kang titanium le beryllium li thata ho feta litšepe tse bonolo tse kang sodium le tšepe ea tšepe, kapa lehong le lipolasetiki tse tloaelehileng. Ho na le litekanyo tse fapaneng tsa ho thatafala: ho thatafala ha khoao, ho thatafala ha indentation, le ho thatafala ha rebound.

Mehlala e tloaelehileng ea lintho tse thata ke lirafshoa, konkreite, litšepe tse itseng le thepa e thata ka ho fetisisa, e ka bapisoang le ntho e bonolo.

Mefuta e ka sehloohong ea litekanyo tsa boima

Ho na le mefuta e meraro e meholo ea litekanyo tsa thatafalo: mongoapo, ho indentation, le rebound. Ka har'a e 'ngoe le e 'ngoe ea lihlopha tsena tsa tekanyo, ho na le litekanyo tsa motho ka mong.

(1)Bothata ba mokwapa

Ho thatafala ha scratch ke tekanyo ea hore na sampole e hanana le ho robeha kapa ho senyeha ha polasetiki ka ho sa feleng ka lebaka la khohlano ea ntho e bohale. Molao-motheo ke hore ntho e entsoeng ka lesela le thata haholoanyane e tla ngoapa ntho e entsoeng ka lesela le bonolo. Ha ho hlahlojoa liphahlo, ho thatafala ha scratch ho bolela matla a hlokahalang ho khaola filimi ho substrate. Teko e tloaelehileng haholo ke sekala sa Mohs, se sebelisoang ho mineralogy. Sesebelisoa se seng sa ho lekanya sena ke sclerometer.

Sesebelisoa se seng se sebelisetsoang ho etsa liteko tsena ke pocket hardness tester. Sesebelisoa sena se na le letsoho la sekala le nang le matšoao a koetlisitsoeng a khomaretsoeng kariking ea mabili a mane. Sesebelisoa sa ho ngolla se nang le moqomo o bohale se behiloe ka lehlakoreng le reriloeng esale pele sebakeng sa tlhahlobo. E le ho e sebelisa boima ba boima bo tsejoang bo eketsoa ho letsoho la sekala ho e 'ngoe ea matšoao a fumaneng mangolo,' me sesebelisoa se huloa ho pholletsa le sebaka sa teko. Tšebeliso ea boima le matšoao e lumella khatello e tsejoang hore e sebelisoe ntle le tlhokahalo ea mechine e rarahaneng.

(2)Bothata ba ho indentation

Boima ba indentation bo lekanya ho hanyetsa ha sampole ho deformation ea lintho tse bonahalang ka lebaka la mojaro o sa khaotseng oa khatello ho tsoa nthong e bohale. Liteko tsa ho thatafala ha indentation li sebelisoa haholo ho boenjiniere le metallurgy. Liteko li sebetsa molemong oa ho metha litekanyo tsa bohlokoa tsa indentation e siiloeng ke indenter e nang le boholo bo khethehileng le e laetsoeng.

Likala tse tloaelehileng tsa ho thatafala ha indentation ke Rockwell, Vickers, Shore, le Brinell, har'a tse ling.

(3) Rebound hardness

Rebound hardness, eo hape e tsejoang e le dynamic hardness, e lekanya bophahamo ba "bounce" ea hamore ea ntlha ea taemane e theohileng ho tloha bophahamong bo tsitsitseng ho ea holim'a thepa. Mofuta ona oa boima o amana le elasticity. Sesebelisoa se sebelisitsoeng ho lekanya sena se tsejoa e le stereoscope.

Likala tse peli tse lekanyang boima ba rebound ke teko ea Leeb rebound hardness le Bennett hardness scale.

Mokhoa oa ultrasonic Contact Impedance (UCI) o etsa qeto ea ho thatafala ka ho lekanya maqhubu a molamu o oscillating. Thupa e entsoe ka shaft ea tšepe e nang le ntho e sisinyehang le taemane e bōpehileng joaloka piramite e behiloeng lehlakoreng le leng.

Vickers boima ba thepa e khethiloeng e thata le e thata haholo

Taemane ke ntho e thata ka ho fetisisa e tsejoang ho fihlela joale, e nang le boima ba Vickers ho tloha 70-150 GPa. Taemane e bonts'a lisebelisoa tse phahameng tsa mocheso le lisebelisoa tsa motlakase, 'me ho hlokometsoe haholo ho fumana lisebelisoa tse sebetsang tsa thepa ena.

Litaemane tsa maiketsetso li 'nile tsa hlahisoa bakeng sa merero ea indasteri ho tloha lilemong tsa bo-1950' me li sebelisoa mefuteng e mengata e fapaneng ea likopo: lithelefono, laser optics, tlhokomelo ea bophelo bo botle, ho itšeha, ho sila le ho cheka, joalo-joalo.

Haeba o khahlehela li-cutters tsa PDC 'me u batla lintlha le lintlha tse ling, u ka ITHUTA KA HO THUSA KA mohala kapa ka poso ka letsohong le letšehali, kapa U RE THUSE MAIL botlaaseng ba leqephe.