Akụrụngwa bara uru nke Tungsten Steel Tool ma ọ bụ Alloy Milling Tool

Isi ike bụ ikike nke ihe iguzogide ihe siri ike na-abanye n'elu ya. Ọ bụ otu n'ime ihe ngosi arụmọrụ dị mkpa nke ihe igwe.

N'ozuzu, ka ike siri ike dị elu, ka mma na-eguzogide iyi. Ndekọ isi ike a na-ejikarị bụ Brinell hardness, Rockwell hardness na Vickers hardness.

hardness brinell (HB)

Pịa bọọlụ nchara siri ike nke ụfọdụ nha (n'ozuzu 10 mm na dayameta) n'ime elu ihe ahụ na ibu ụfọdụ (n'ozuzu 3000 n'arọ), ma debe ya ruo oge ụfọdụ. Mgbe ebutuchara, oke ibu na mpaghara indentation bụ ọnụọgụ ike Brinell (HB), na otu ahụ bụ kilogram ike / mm2 (n / mm2).

2. Rockwell hardness (HR)

Mgbe HB> 450 ma ọ bụ ihe nlele dị ntakịrị, enweghị ike iji nha ike ike Rockwell kama ịnwale ike ike Brinell. Ọ bụ cone diamond nwere akụkụ elu nke ogo 120 ma ọ bụ bọọlụ ígwè nwere dayameta nke 1.59 na 3.18 mm. A na-agbanye ya n'elu ihe dị n'okpuru ibu ụfọdụ, a na-agbakọkwa ike nke ihe ahụ site na omimi nke ntinye. Dị ka isi ike dị iche iche nke ihe nnwale ahụ si dị, enwere ike igosipụta ya site na nha atọ dị iche iche:

450 ma ọ bụ ihe nlele dị ntakịrị, enweghị ike iji nha ike ike Rockwell kama ịnwale ike ike Brinell. Ọ bụ cone diamond nwere akụkụ elu nke ogo 120 ma ọ bụ bọọlụ ígwè nwere dayameta nke 1.59 na 3.18 mm. A na-agbanye ya n'elu ihe dị n'okpuru ibu ụfọdụ, a na-agbakọkwa ike nke ihe ahụ site na omimi nke ntinye. Dị ka isi ike dị iche iche nke ihe nnwale ahụ si dị, enwere ike igosipụta ya site na nha atọ dị iche iche:

HRA: A na-eji isi ike enwetara site na ibu 60kg na diamond cone indenter maka ihe nwere nnukwu ike ike (dị ka carbide cimented).

HRB: Isi ike nke enwetara site na ime ka bọọlụ nchara sie ike nke nwere dayameta nke 1.58 mm na ibu 100 n'arọ. A na-eji ya eme ihe ndị na-esighị ike dị ala. (dị ka ígwè annealed, nkedo ígwè, wdg).

HRC: A na-eji isi ike enwetara site na ibu 150kg na diamond cone indenter maka ihe nwere isi ike dị elu (dị ka ígwè emenyụ emenyụ).

3. Vickers hardness (HV)