7 akatevedzana aluminium alloy ndeye Al-Zn-Mg-Cu, Iyo alloy yakashandiswa muindasitiri yekugadzira ndege kubva mukupera kwema1940. The7075 aluminium alloyine chimiro chakaomarara uye yakasimba corrosion resistance, iyo ndiyo yakanakisa yeaviation uye Marine plates.Ordinary corrosion resistance, good mechanical properties uye anode reaction.

Mbeu dzakatsetseka dzinoita zvirinani kuchera kwakadzika kuita uye inosimudzira kupfeka kuramba. Iyo yakanakisa simba realuminium alloy ndeye 7075 alloy, asi haigone kuve welded, uye kushorwa kwayo kwekuora kwakashata, mazhinji CNC ekucheka ekugadzira zvikamu anoshandisa 7075 alloy. Zinc ndicho chinhu chikuru chealloy mune ino nhevedzano, pamwe nediki magnesium alloy inogona kugonesa zvinhu kuti zvigadziriswe nekupisa, kusvika kune yakanyanya simba hunhu.

Iyi nhevedzano yezvigadzirwa zvinowanzowedzerwa kune shoma shoma yemhangura, chromium uye mamwe maalloys, uye pakati peiyo nhamba 7075 aruminiyamu alloy inonyanya kunaka yepamusoro, iyo yakanyanya simba, yakakodzera kune ndege furemu uye yakakwirira simba accessories. yakanaka plasticity mushure mekugadzirisa kwakasimba kwekugadzirisa, kupisa kurapwa kwekusimbisa mhedzisiro kunonyanya kunaka, ine simba rakakura pasi pe150 ℃, uye ine yakanyanya kunaka yakaderera tembiricha simba; kushushikana ngura kutsemuka maitiro; yakavharwa aluminium kana kumwe kurapwa kwekudzivirira. Kuchembera kaviri kunogona kuvandudza kuramba kwealloy stress corrosion cracking. Iyo purasitiki mune yakavharwa uye yakangodzimwa mamiriro yakadzikira zvishoma pane yakafanana mamiriro e2A12. zvishoma nani pane 7A04, ndiro static kuneta. Gtch inonzwisa tsitsi, kushushikana kwekuora kuri nani pane 7A04. density i2.85 g/cm3.

7075 aluminium alloy ine yakanakisa mechaniki zvivakwa, chaiyo mashandiro mune zvinotevera zvinhu:

1. Kusimba kwepamusoro: Simba rekusimba re7075 aluminium alloy rinogona kusvika kupfuura 560MPa, iyo ndeyesimba rakasimba rezvinhu zvealuminium alloy, iyo iri 2-3 nguva yeimwe aluminium alloys pasi pemamiriro akafanana.

2. Kusimba kwakanaka: Chikamu che shrinkage rate uye elongation rate ye7075 aruminiyamu alloy yakakwira zvishoma, uye nzira yekuputsika ndiyo yakaoma kuputsika, iyo inonyanya kukodzera kugadzirisa nekugadzira.

3. Kushanda kwakanaka kuneta: 7075 Aluminium alloy inogona kuramba ichichengetedza maitiro ayo akanaka emagetsi pasi pekunetseka kwakanyanya uye kazhinji kudzorera mutoro, pasina oxidation, crack uye zvimwe zviitiko.

4. inoshanda zvakanyanya mukuchengetedza kupisa:7075 Aluminium alloyinogona kuramba ichichengetedza yakanaka yemagetsi zvivakwa munzvimbo yepamusoro yekupisa, inova rudzi rwemhando yepamusoro inodzivirira aluminium alloy.

5. Good corrosion resistance: 7075 Aluminium alloy ine good corrosion resistance uye inogona kushandiswa mukugadzirwa kwezvikamu nepamusoro-soro yekudzivirira zvinodiwa.

Chimiro:

1.O-state: (nyika yakawedzerwa)

Nzira yekushandisa: Pisa iyo 7075 aluminium alloy kune tembiricha yakakodzera, kazhinji iri 350-400 madhigirii Celsius, chengeta kwenguva yakati uye wozotonhorera zvishoma nezvishoma kusvika kune tembiricha yekamuri, chinangwa: kubvisa kushushikana kwemukati uye kuvandudza mapurasitiki uye kuoma kweiyo. zvinhu.Iyo yakanyanya kusimba simba re7075 (7075-0 tempering) haingapfuuri 280 MPa (40,000 psi) uye yakanyanya. goho simba re140 MPa (21,000 psi). Kurebesa kwezvinhu (kutambanudza pamberi pekutadza kwekupedzisira) ndeye 9-10%.

2.T6 (kuchembera kurapwa):

Implementation nzira: yekutanga yakasimba mhinduro kurapwa ndiyo alloy kudziyisa kusvika 475-490 madhigirii Celsius uye kukurumidza kutonhora uye ipapo kuchembera kurapwa, kazhinji pa120-150 madhigirii Celsius insulation kwemaawa akati wandei, chinangwa: kuvandudza simba uye kuoma kwezvinhu. .The ultimate tensile simba reT6 tempering 7075 is 510,540 MPa (74,00078,000 psi) ine goho simba. yeinenge 430,480 MPa (63,00069,000 psi). Iine kukundikana kuwedzera mwero we5-11%.

3.T651 (kutambanudza + kuchembera kuomesa):

Implementation nzira: pahwaro hweT6 kuchembera kuomesa, imwe chikamu chekutambanudza kubvisa zvakasara kushushikana, chinangwa: kuchengetedza yakakwirira simba uye kuoma uku uchivandudza plasticity uye kuoma.Iyo yekupedzisira tensile simba reT651 tempering 7075 ndeye 570 MPa (83,000) psi) uye simba regoho re500 MPa (73,000 psi). Iine kukundikana elongation rate ye3 - 9%. Aya hunhu anogona kushandurwa zvichienderana nechimiro chechinhu chakashandiswa. Mahwendefa akakora anogona kuratidza simba rakaderera uye kureba kupfuura nhamba dzakanyorwa pamusoro.

Kushandiswa kukuru kwe7075 aluminium alloy:

1.Aerospace field: 7075 aluminium alloy inoshandiswa zvakanyanya mumunda weaerospace nekuda kwesimba rayo guru uye maitiro asina kusimba. Inowanzoshandiswa mukugadzirwa kwezvivako zvendege, mapapiro, bulkheads uye zvimwe zvikamu zvakakosha, pamwe chete nezvimwe zvivako zvinoda simba rakakwirira uye kusagadzikana kwekuora.

2. indasitiri yemotokari: Iyo 7075 aluminium alloy inoitawo basa rakakosha mukugadzira mota. Inowanzo shandiswa muiyo braking system uye chassis zvikamu zvepamusoro-inoita mota uye mota dzemujaho, kuitira kuvandudza mashandiro emotokari uye kuderedza huremu.

3. midziyo yekurovedzera muviri: Nekuda kwesimba rayo rakakura uye huremu huremu, 7075 aruminiyamu alloy inowanzoshandiswa kugadzira midziyo yemitambo, senge tsvimbo dzekufamba, makirabhu egorofu, nezvimwe.

4. Kuvaka muchina: Mumunda wekugadzira michina, 7075 aruminiyamu alloy inoshandiswawo zvakanyanya mukugadzirwa kwezvikamu zvakanyatsonaka, molds nezvimwe zvakadaro. Pamusoro pezvo, 7075 aruminiyamu alloy inoshandiswa zvakanyanya mukufuridza epurasitiki (bhodhoro) mold, ultrasonic plastiki welding mold, shangu mold, bepa epurasitiki mold, furo rinogadzira mold, wax mold, modhi, fixture, mechanical equipment, mold processing nezvimwe minda. Iyo inoshandiswawo kugadzira yakakwirira-yekupedzisira aluminium alloy bhasikoro mafuremu.

Zvinofanira kucherechedzwa kuti kunyange7075 aluminium alloyine zvakawanda zvakanakira, zvichiri kudikanwa kuti utarise kushata kwayo welding kuita uye tsika yekushushikana kuora kwekuputika, saka iyo aluminium coating kana imwe yekudzivirira kurapwa inogona kudiwa mukushandiswa.

Kazhinji, iyo 7075 aruminiyamu alloy ine chinzvimbo chakakosha muminda yakawanda yemaindasitiri nekuda kwekuita kwayo kwakanaka uye kushandiswa kwakakura.