Njirimara igwe nke igwe

1. Ọnụ mkpụrụ

Mgbe ígwè ma ọ bụ ihe nlele na-agbatị, mgbe nrụgide ahụ gafere njedebe na-agbanwe agbanwe, ọ bụrụgodị na nrụgide ahụ adịghị abawanye, nchara ma ọ bụ ihe nlele na-aga n'ihu na-enwe nrụrụ plastik doro anya, nke a na-akpọ ikwenye, na uru nrụgide kacha nta mgbe ihe na-ekwenye ekwenye na-eme. bụ maka ebe mkpụrụ.Ka Ps bụrụ ike mpụga na ebe mkpụrụ s, na Fo bụrụ mpaghara akụkụ nke ihe nlele, wee bụrụ ebe mkpụrụ σs = Ps/Fo (MPa)..

2. Mpụta ike

Ebe mkpụrụ nke ụfọdụ ihe igwe anaghị apụta ìhè nke ukwuu ma sie ike ịlele.Ya mere, iji tụọ njirimara mkpụrụ nke ihe ahụ, nrụgide mgbe nrụrụ plastik na-adịgide adịgide bụ otu uru (na-emekarị 0.2% nke ogologo mbụ) akọwapụtara.bụ ike mkpụrụ akụ ma ọ bụ naanị na-enye ike σ0.2.

3. Ike tensile

Uru nrụgide kachasị elu nke ihe onwunwe ruru n'oge usoro mgbatị ahụ, site na mmalite ruo n'ọkpụkpụ.Ọ na-egosipụta ike nke ígwè iguzogide imebi.N'ikwekọ na ike nkwụsịtụ, enwere ike mkpakọ, ike na-agbanwe agbanwe, wdg Ka Pb bụrụ ike kachasị elu nke a na-enweta tupu e wepụ ihe ahụ.

ike, Fo bụ akụkụ akụkụ nke ihe atụ, mgbe ahụ ike ike σb = Pb / Fo (MPa).

4. elongation

Mgbe agbajichara ihe ahụ, a na-akpọ pasent nke ogologo elongation plastik ya ruo ogologo oge nlele mbụ nke elongation ma ọ bụ elongation.

5. Oke ike mkpụrụ

A na-akpọ oke nke ebe mkpụrụ (ike mmepụta) nke ígwè na ike nkwụsịtụ ka a na-akpọ nha ike-ike.Ọnụ ọgụgụ dị ukwuu nke mkpụrụ, nke dị elu nke ntụkwasị obi nke akụkụ nhazi.N'ozuzu, nha mkpụrụ nke carbon ígwè bụ 06-0.65, na ala alloy structural steel bụ 065-0.75, na alloy structural ígwè bụ 0.84-0.86.

6. Isi ike

Isi ike na-egosi ikike nke ihe nwere iguzogide ịpị ihe siri ike 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.Ihe ngosi isi ike a na-ejikarị bụ Brinell hardness, Rockwell hardness na Vickers hardness.

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Oge nzipu: Jul-20-2022