Ike nke ihe eji eme igwe iji guzogide indentation nke a na-akpọ ihe na-egosi. Dị ka usoro ule dị iche iche na ngwa ngwa, a pụrụ ikpa ikewa na mkpasi ike, rockwell siri ike, ihe siri ike, ihe siri ike, microhardnes na mmiri ike. E nwere atọ na-ejikarị pipes: Brinell, Rockwell, na ndị na-eme mkpọtụ.
A. Brinell siri ike (HB)
Jiri bọl ígwè ma ọ bụ carbide bọl nke otu dayameta ga-abanye n'ime ya na ike ule (F). Mgbe oge akọwapụtara, wepụ ikike ule ma tụọ dayameta (l) na ebe nlele. Brinell siri ike bara uru bụ ihe a na-ekwu site na nke na-ekewa ike ule site na mpaghara elu nke ebe a na-ahụ anya. Kwupụtara na HBS (bọl ígwè), ngalaba ahụ bụ N / MM2 (MPA).
Usoro mgbako ahụ bụ:
Na usoro usoro: F-A na-ahụ maka ule na-abanye n'ime elu igwe, n;
D-dayameta nke bọl ígwè maka ule, mm;
D-nkezi dayameta nke intentication, mm.
Nkpachapụ nke ihe mgbochi Brinell bụ ihe ziri ezi ma nwee ezi uche, mana n'ozuzu ha, ọ dị mma maka ihe ndị dị n'okpuru 450N / MM2 (MPA), na efere siri ike. N'etiti ụkpụrụ ọkpọkọ nchara, ihe mgbochi Brinell bụ ihe a kacha eji. A na-ejikarị dayameta Dike na-egosipụta ike nke ihe ahụ, nke bụ abụọ kensi ike.
Ihe atụ: 120hbs10 / 1000130: ọ pụtara na uru ọkụ na-atụ anya site na iji bọlbụ nke 1mm (9.8) (sekọnd) bụ 120n / MM2 (MM2 (MM2).
B. Rockwell siri ike (HR)
Nnwale siri ike nke rockwell, dịka Brinell Alelesion Harsed, bụ usoro nnwale nke Intentation. Ihe dị iche bụ na ọ na-atụ omimi omimi nke intentation. Nke ahụ bụ, n'okpuru usoro nhazi nke ike mbụ (fo) na ngụkọta ule (f), ndị isi ma ọ bụ ígwè nke igwe nchara). Mgbe oge akọwapụtara, a na-ewepụ ike isi. Ike nnwale, jiri ihe omimi ahụ dị omimi (e) iji gbakọọ uru isi ike. Uru ya bụ ọnụ ọgụgụ na-enweghị aha, nke akara ngosi eji na-anọchite anya akpịrịkpa na-ahụ maka ebumnuche ha bụ, b, na k, ya bụ HRA, HRB, na HRC.
A na-agbakọ uru siri ike site na iji usoro usoro ndị a:
Mgbe ị na-anwale na akpịrịkpa na-anwale, hr = 100-e
Mgbe ị na-enyocha ya na B Scale, HR = 130-e
Na usoro, e - a na-egosipụta mmụba nke omimi dị omimi na ngalaba akọwapụtara nke ọma na ngalaba akọwapụtara bụ otu ngalaba (0.002mm), ọ bụ na mgbanwe na otu ọnụ ọgụgụ. Ala buru ibu nke uru, belata obi ike nke igwe, na nke ọzọ.
A na-akwadokarị nke akpịrịkpa dị n'elu bụ ndị a:
HRA (Diamond Coe Intenter) 20-88
HRC (Diamond Coe Intenter) 20-70
HRB (dayameta 1.588mm ígwè
Nnwale siri ike nke Rockwell bụ usoro eji arụ ọrụ n'ọtụtụ ebe, nke ejiri HRC mee ihe na mbara igwe nke abụọ nke abụọ na Brinell Hardness HB. Enwere ike iji ihe mgbochi Rockwell mee ihe iji tụọ ihe eji eme ọla site na nnukwu ike. Ọ na-eme ka mmejọ nke usoro blin pụta. Ọ dị mfe karịa usoro eji arụ ọrụ na uru siri ike nwere ike site na ọkpọ nke igwe ha na-enweghị isi. Agbanyeghị, n'ihi obere obere ya, uru ihe siri ike adịghị ka nke ziri ezi dị ka usoro brinlọ.
C. Vickers siri ike (HV)
Nnwale siri ike na-emekwa ka usoro nnwale. Ọ na-eji akụkụ pyramidal squamidal nke nwere akụkụ dị iche iche nke 1360 n'etiti akụkụ nke na-aga n'ihu na-eche ihu na elu ule (F), ma na-ewepu ya mgbe oge a kara aka. Ike, tụọ ogologo nke dialenonal abụọ nke intentation.
Uru siri ike nke siri ike bu ihe nlere nke ike ekewa site na mpaghara elu. Usoro mgbakọ ya bụ:
Na usoro a: HV-vickers ihe siri ike, n / mm2 (MPA);
F-ule na-anwale, n;
D-The Arithmitik pụtara ihe abụọ dị anya nke ndepụta ahụ, mm.
Ihe nnwale ahụ nke eji eme ihe na vickers ha siri ike bụ 5 (49.03), 20 (98.7), 100 (980.7) kgf (n) kgf (n) na ọkwa isii ndị ọzọ. Enwere ike ịtụle uru siri ike bụ 5 ~ 1000HV.
Ihe atụ nke ngosipụta: 640HV30 / 20 pụtara na uru siri ike nke 30hgf (294.2N) maka 20s (sekọnd) bụ 640n / MM2 (MM2).
Enwere ike iji usoro siri ike dị ka iji chọpụta ihe siri ike nke nnukwu ihe na oke elu. O nwere uru bara uru nke brinell na usoro rockwell ma merie adịghị ike ha, mana ọ naghị adị mfe dịka Rockwell. A na-ejikarị usoro Vickers eji arụ ọrụ na-enweghị atụ.
Post Oge: Apr-03-2024