7 usoro aluminum alloy bụ Al-Zn-Mg-Cu, A na-eji alloy eme ihe na ụlọ ọrụ mmepụta ụgbọ elu kemgbe njedebe 1940. Nke7075 aluminum alloynwere usoro siri ike na nguzogide corrosion siri ike, nke kachasị mma maka ụgbọ elu na efere mmiri.

Mkpụrụ ọka dị mma na-eme ka arụmọrụ mkpọpu miri emi dịkwuo mma yana nkwụsi ike eyi. Ike kachasị mma nke aluminom alloy bụ alloy 7075, mana enweghị ike ịgbanye ya, yana nguzogide corrosion ya adịghị mma, ọtụtụ akụkụ nrụpụta CNC na-eji 7075 alloy. Zinc bụ isi ihe alloy n'usoro isiokwu a, gbakwunyere ntakịrị magnesium alloy nwere ike mee ka ihe ahụ na-ekpo ọkụ na-agwọ ya, iru njiri mara ike dị elu.

A na-agbakwunye usoro ihe ndị a na obere ọla kọpa, chromium na alloys ndị ọzọ, na n'etiti nke nọmba 7075 aluminom alloy bụ nke kachasị mma, ike kachasị elu, dabara adaba maka etiti ụgbọ elu na ngwa ngwa ike dị elu. ezigbo plasticity mgbe ọgwụgwọ ngwọta siri ike, mmetụta nkwado ọgwụgwọ okpomọkụ dị mma, nwere ike dị elu n'okpuru 150 ℃, ma nwee ike dị ala dị ala; nrụgide corrosion cracking ọchịchọ; aluminom mkpuchi ma ọ bụ ọgwụgwọ nchebe ọzọ. Ịka nká ugboro abụọ nwere ike melite nguzogide corrosion corrosion alloy stress. Plasticity dị na steeti annealed na nke emenyụchara dị ntakịrị ala karịa otu steeti 2A12. dịtụ mma karịa 7A04, ike ọgwụgwụ efere static. Gtch nwere mmetụta dị nro, nrụgide nrụgide dị mma karịa 7A04. Njupụta bụ 2.85 g / cm3.

7075 aluminum alloy nwere ọmarịcha nrụ ọrụ, arụmọrụ akọwapụtara na akụkụ ndị a:

1. ike dị elu: Ike nkwụsị nke 7075 aluminum alloy nwere ike iru karịa 560MPa, nke bụ ihe dị elu nke aluminom alloy, nke bụ 2-3 ugboro nke ihe ndị ọzọ aluminom alloy n'okpuru otu ọnọdụ.

2. Ike siri ike: Ngalaba shrinkage na ọnụego elongation nke 7075 aluminum alloy dị oke elu, na ọnọdụ mgbawa bụ mgbaji siri ike, nke dabara adaba maka nhazi na ịmepụta.

3. Ezi ike ọgwụgwụ arụmọrụ: 7075 Aluminom alloy ka nwere ike ịnọgide na-enwe ezigbo ihe eji arụ ọrụ n'okpuru nrụgide dị elu na ibu na-emegharị ugboro ugboro, na-enweghị oxidation, mgbape na ihe ndị ọzọ.

4. dị oke mma n'ichekwa okpomọkụ:7075 Aluminom alloyka nwere ike ịnọgide na-enwe ya ezi n'ibu Njirimara na elu okpomọkụ gburugburu ebe obibi, nke bụ ụdị elu okpomọkụ na-eguzogide aluminum alloy.

5. Ezigbo nguzogide corrosion: 7075 Aluminom alloy nwere ezigbo nguzogide corrosion na enwere ike iji ya mee ihe n'imepụta akụkụ ndị nwere nnukwu ihe mgbochi corrosion chọrọ.

Ọnọdụ:

1.O-steeti: (Annealed steeti)

Usoro mmejuputa atumatu: Kpoo 7075 aluminum alloy na okpomọkụ kwesiri ekwesi, na-emekarị na 350-400 degrees Celsius, na-edebe ruo oge ụfọdụ wee jiri nwayọọ nwayọọ mee ka okpomọkụ dị n'ime ụlọ, nzube ya: iji kpochapụ nrụgide dị n'ime ma melite plasticity na ike nke ụlọ. material.The kacha tensile ike nke 7075 (7075-0 tempering) agaghị gafere 280 MPa (40,000 psi) na kacha ike mkpụrụ ike nke 140 MPa (21,000 psi). Elu nke ihe (ịgbatị tupu ọdịda ikpeazụ) bụ 9-10%.

2.T6 (ọgwụgwọ ịka nká):

Usoro mmejuputa atumatu: ọgwụgwọ ngwọta siri ike nke mbụ bụ ikpo ọkụ alloy na 475-490 degrees Celsius na ngwa ngwa jụrụ oyi na mgbe ahụ ọgwụgwọ ịka nká, na-emekarị na mkpuchi 120-150 Celsius ruo ọtụtụ awa, nzube: iji melite ike na ike nke ihe onwunwe. .The kacha tensile ike nke T6 tempering 7075 bụ 510,540 MPa (74,00078,000 psi) na a mkpụrụ ike nke opekata mpe 430,480 MPa (63,00069,000 psi). Ọ nwere ọnụego ndọtị ọdịda ọdịda nke 5-11%.

3.T651 (ịgbatị + ịka nká ike):

Usoro mmejuputa iwu: na ndabere nke T6 ịka nká hardening, akụkụ ụfọdụ nke ịgbatị iji kpochapụ nrụgide fọdụrụnụ, nzube: ịnọgide na-enwe ike na ike siri ike mgbe ị na-emezi plasticity na toughness.The kacha tensile ike nke T651 tempering 7075 bụ nke 570 MPa (83,000). psi) na ike mkpụrụ nke 500 MPa (73,000 psi). Ọ nwere ọdịda elongation ọnụego nke 3-9%. Enwere ike ịgbanwe àgwà ndị a dabere n'ụdị ihe eji eme ihe. Efere dị arọ nwere ike igosipụta ike dị ala na elongation karịa ọnụọgụ ndị edepụtara n'elu.

Isi ojiji nke 7075 aluminum alloy:

1.Aerospace ubi: 7075 aluminum alloy na-ejikarị eme ihe na mbara igwe n'ihi ike ya dị elu na njirimara dị arọ. A na-ejikarị ya emepụta ihe owuwu ụgbọ elu, nku, nnukwu isi na ihe ndị ọzọ dị mkpa, yana ihe ndị ọzọ na-achọ ike dị elu na nkwụsị corrosion.

2. ụlọ ọrụ ụgbọ ala: 7075 aluminum alloy na-arụkwa ọrụ dị mkpa n'ichepụta ụgbọ ala. A na-ejikarị ya eme ihe na usoro breeki na akụkụ chassis nke ụgbọ ala ndị na-arụ ọrụ dị elu na ụgbọ ala ndị na-agba ọsọ, iji mee ka arụmọrụ nke ụgbọ ala dịkwuo mma ma belata ibu.

3. akụrụngwa mgbatị ahụ: N'ihi ike ya dị elu na njirimara dị arọ, 7075 aluminum alloy na-ejikarị eme ihe egwuregwu, dị ka osisi hiking, klọb golf, wdg.

4. igwe ụlọ: N'ọhịa nke n'ichepụta n'ibu, 7075 aluminum alloy na-ọtụtụ ebe na-emepụta nke ziri ezi akụkụ, ebu na na. Tụkwasị na nke ahụ, a na-ejikwa 7075 aluminum alloy na-eji plastik na-egbuke egbuke ( karama ) ebu, ultrasonic plastic welding ebu, akpụkpọ ụkwụ akpụkpọ ụkwụ, akpụkpọ anụ plastik akwụkwọ, ụfụfụ na-emepụta ebu, ihe na-emepụta ihe, ihe nlereanya, ihe ndozi, ngwá ọrụ, nhazi nhazi na ubi ndị ọzọ. A na-ejikwa ya emepụta okpokolo agba alumini dị elu.

Ọ ga-kwuru na ọ bụ ezie na7075 aluminum alloynwere ọtụtụ uru, ọ ka dị mkpa ịṅa ntị na arụmọrụ ịgbado ọkụ ya na-adịghị mma na ọdịdị nke nrụgide corrosion cracking, n'ihi ya, a ga-achọrọ mkpuchi aluminum ma ọ bụ ọgwụgwọ nchebe ọzọ.

N'ozuzu, 7075 aluminum alloy nwere ọnọdụ dị mkpa n'ọtụtụ ụlọ ọrụ mmepụta ihe n'ihi arụmọrụ ya dị mma na ngwa ngwa.