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, nha nke ibu ahụ na mpaghara indentation bụ nọmba hardness Brinell (HB), na unit 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 ụfọdụ ibu, a na-agbakọkwa ike nke ihe ahụ site na omimi nke ntinye. Dị ka 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 ụfọdụ ibu, a na-agbakọkwa ike nke ihe ahụ site na omimi nke ntinye. Dị ka 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 ike siri ike nwetara site na ibu 60 n'arọ 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 kg. A na-eji ya eme ihe ndị nwere 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 ike siri ike (dị ka ígwè emenyụ emenyụ).

3. Vickers hardness (HV)