Nyika hombe yemhangura ine tarisiro yekutora nhau dzakabatikana
Vatengesi vemhangura vari kubhombwa nevatyairi vemitengo izvozvi - kubva pamadhora miriyoni imwe mukushandiswa kwezvivakwa zveUS kusvika kune yechipiri wave yeCovid-19 muChina. Kune mufemberi weChile, mhedzisiro inetarisiro zvine hungwaru.
Mitengo ingangoita inodarika $2.50 paundi gore rino, sekureva kwaMarco Riveros, anotungamira bazi rehurumende Cochilco. Kusvika pari zvino gore rino, avhareji yanga iri pasi pedanho iroro.
Nekuda kunotsigirwa nekupora muEurope uye kurudziro yaPresident Trump yezvivakwa, pane kurudziro yekuti migodhi yekuChile irambe ichishanda padanho repamusoro, Riveros akadaro mubvunzurudzo neChipiri.
Munyika yakagadzira matani 5.8 miriyoni esimbi tsvuku gore rapfuura, kuvhiringwa kweCovid-19 kunogona kuita mashoma sematani zviuru makumi manomwe neshanu kana anosvika mazana mana ezviuru, sangano iri rakati. Pane imwe nzvimbo pakati peiyo mutsara, anenge 200,000 matani, ingave tarisiro ine musoro, akadaro.
Saka zvakawanda zvakasiyana-siyana zvinoita kuti kufanotaura kwenguva pfupi kuome. Makambani ari kugara achigadzirisa zvirongwa zvavo zvemigodhi apo ivo vachidzingirira kubudirira kwechigadzirwa ivo vachishanda nevashandi vashoma. Sezvo vashandi vakawanda vachirwara, masangano eChile arikudaidzira kudzikisira mabasa.
Kunyange hazvo hutano huchifanira kuve hwekutanga uye mimwe migodhi inogona kunetseka kuchengetedza goho, chiono chaCochilco ndechekuti indasitiri ionekwe netarisiro, Riveros akadaro.
"Kunyanya muChile, migodhi yakagara iine simba rekusimudzira hupfumi, uye munyaya iyi, kugadzirisa hupfumi mberi," akadaro.
Mukuda kudzikamisa kunetsana kwevashandi uye kuti zvimbambaira zvirambe zvichifamba, hurumende iri kushanda munzira dzekugadzirisa Covid-19.
Gurukota rezvemigodhi, Baldo Prokurica, vari kutarisa nezvekuparadzira data rehutachiona kubva kuvakuru vehutano munharaunda, kwete kubva kumakambani chete. Hurumende inogona zvakare kutaura zvakabuda muongororo yekuona kuti migodhi iri kutevedzera sei hurongwa hwekurwisa hutachiona, akadaro mubvunzurudzo neMuvhuro.
Kusiyana nePeru yakavakidzana nayo, Chile yakasarudza kuenderera mberi nemigodhi sezvo hutachiona hwakarova, kuita matanho ekuchengetedza uye kubvisa vashandi vasina kukosha pasina kupa zvakawanda. KuProkurica, chiitiko chekuenzanisa chekuchengetedza vashandi vaine hutano uye mari inodiwa kunze kwenyika inoyerera.
"Tichaita zvese zvatingagona kuti nyika ivimbise vashandi nezvemabasa avo, uye panguva imwecheteyo vaenderere mberi, tichichengetedza hutano nekuchengetedzeka kwevashandi vedu," akadaro.
Kunetsana kwakawedzera svondo rapfuura mushure mekunge mushandi wepamugodhi wehurumende weCodelco weChuquicamata afa nechirwere ichi. Gurukota rakatumira vamwe vaongorori kuti vaone mamiriro akaita zvinhu pamigodhi, neongororo yakaitwa kusvika pari zvino zviuru zana nemazana matanhatu.
Mukupera kwesvondo, mapoka manomwe anomirira vashandi nevekondirakiti akakurudzira hurumende kuti iongorore zvakare kuenderera mberi kwemigodhi. Mangwanani eChipiri, Federation of Copper Workers yakati vatungamiriri vemubatanidzwa havabvumidzwe kupinda mumugodhi weChuquicamata kuti vaongorore kutevedza kweprotocol mumuenzaniso wekupedzisira we "kuzvitutumadza" kwemaneja.
Prokurica akati indasitiri iri kutora matanho anoshamisa kuchengetedza vashandi, kusanganisira kuyedza, kuenda kure uye kudzoreredza hafu yevashandi vese. Kunyange hutachiona huri kuramba huchikwira munyika, zvicherwa zvaita zvirinani pane mamwe maindasitiri, zvichingori 0.5% yevashandi vari kurwara, akadaro.
"Hapana zvakajairika muindasitiri yemhangura izvozvi," Prokurica akadaro. "Tiri muchikamu chakaoma kwazvo chedenda muChile."
Ball Mill Liner Material Sarudzo
Yakasiyana yakapwanyika zvinhu, akasiyana ekushanda mamiriro anoda akasiyana zvinhu liner kuti aenderane. Zvakare, iyo yakakasharara yekukuya compartment uye yakanaka yekukuya compartment inoda akasiyana matinji.
H&G Michina inopa zvinotevera zvinhu kukanda yako bhora chigayo liner:
Manganese Steel
Iyo manganese yemukati meyakakwira manganese simbi bhora chigayo lining plate inowanzo 11-14%, uye iyo kabhoni yemukati inowanzo 0.90-1.50%, mazhinji ayo ari pamusoro pe1. Pamitoro yakaderera, kuoma kunogona kusvika HB300-400. Pakukwirisa mitoro, kuoma kunogona kusvika HB500-800. Zvichienderana nekutakura mutoro, kudzika kweiyo yakaomeswa layer inogona kusvika 10-20mm. Iyo yakaomeswa layer ine kuomarara kwakanyanya inogona kuramba kukanganisa uye kuderedza abrasive kupfeka. Yakakwira manganese simbi ine yakanakisa anti-kupfeka mashandiro pasi pemamiriro eiyo yakasimba kukanganisa abrasive kupfeka, saka inowanzoshandiswa munzvimbo dzisingapfeki dzemigodhi, zvekuvaka, simba rekupisa, uye zvimwe zvemichina. Pasi pemamiriro ekuderera kwemamiriro ezvinhu, yakakwira manganese simbi haigone kuita hunhu hwechigadzirwa nekuti basa rekuomesa mhedzisiro haisi pachena.
Kuumbwa Kwemakemikari
| Zita | Kuumbwa Kwemakemikari (%) | |||||||
| C | Si | Mn | Cr | Mo | Cu | P | S | |
| Mn14 Mill Liner | 0.9-1.5 | 0.3-1.0 | 11-14 | 0-2.5 | 0-0.5 | ≤0.05 | ≤0.06 | ≤0.06 |
| Mn18 Mill Liner | 1.0-1.5 | 0.3-1.0 | 16-19 | 0-2.5 | 0-0.5 | ≤0.05 | ≤0.06 | ≤0.06 |
Mechanical properties uye metallographic structure
| Zita | Kuoma Kwepamusoro (HB) | Impact value Ak (J/cm2) | Microstructure |
| Mn14 Mill Liner | ≤240 | ≥100 | A+C |
| Mn18 Mill Liner | ≤260 | ≥150 | A+C |
| C -Carbide | Carbide A-Yakachengetwa austenite | Austenite | |||
Product specification
| Size | Hole Dia. (mm) | Liner Length (mm) | ||
| ≤40 | ≥40 | ≤250 | ≥250 | |
| Kushivirira | +20 | +30 | +2 | +3 |
Chrome Alloy Steel
Chromium alloy cast iron yakakamurwa kuita yakakwira chromium alloy cast iron (chromium content 8-26% carbon content 2.0-3.6%), medium chromium alloy cast iron (chromium content 4-6%, carbon content 2.0-3.2%), yakaderera chromium Mhando nhatu dzealloy cast iron (chromium content 1-3%, carbon content 2.1-3.6%). Chinhu chayo chinoshamisa ndechekuti microhardness yeM7C3 eutectic carbide iHV1300-1800, iyo inogoverwa muchimiro chetambo yakaputsika uye yakaparadzaniswa pane martensite (iyo yakaoma zvikuru musimbi matrix) matrix, kuderedza cleavage effect pamatrix. Naizvozvo, iyo yakakwira-chromium alloy liner ine simba rakawanda, bhora rehuyo kusimba, uye yakakwirira kupfeka kuramba, uye kuita kwayo kunomiririra nhanho yepamusoro yezvinhu zvazvino zvesimbi zvinopfekwa.
Kuumbwa Kwemakemikari
| Zita | Kuumbwa Kwemakemikari (%) | |||||||
| C | Si | Mn | Cr | Mo | Cu | P | S | |
| Yakakwira Chrome Alloy Liner | 2.0-3.6 | 0-1.0 | 0-2.0 | 8-26 | ≤3.0 | ≤1.2 | ≤0.06 | ≤0.06 |
| Middle Chrome Alloy Liner | 2.0-3.3 | 0-1.2 | 0-2.0 | 4-8 | ≤3.0 | ≤1.2 | ≤0.06 | ≤0.06 |
| Yakaderera Chrome Alloy Liner | 2.1-3.6 | 0-1.5 | 0-2.0 | 1-3 | 0-1.0 | ≤1.2 | ≤0.06 | ≤0.06 |
Mechanical properties uye metallographic structure
| Zita | Surface (HRC) Ak (J/cm2) | Microstructure | ||||
| Yakakwira Chrome Alloy Liner | ≥58 | ≥3.5 | M+C+A | |||
| Middle Chrome Alloy Liner | ≥48 | ≥10 | M+C | |||
| Yakaderera Chrome Alloy Liner | ≥45 | ≥15 | M+C+P | |||
| M-Martensite | C - Carbide | A-Austenite | P-Pearlite | |||
Product specification
| Size | Hole Dia. (mm) Liner Length (mm) | |||
| ≤40 | ≥40 | ≤250 | ≥250 | |
| Kushivirira | +20 | +30 | +2 | +3 |
Cr-Mo Alloy Steel
H&G Michina inoshandisa Cr-Mo alloy simbi kukanda bhora rechigayo liner. Ichi chinyorwa chakavakirwa pachiyero cheAustralia, (AS2074 Standard L2B, uye AS2074 Standard L2C) inopa hukuru hwekuita uye kuramba kupfeka mune ese semi-autogenous milling application.
Kuumbwa Kwemakemikari
| Code | Chemical Elements (%) | |||||||
| C | Si | Mn | Cr | Mo | Cu | P | S | |
| L2B | 0.6-0.9 | 0.4-0.7 | 0.6-1.0 | 1.8-2.1 | 0.2-0.4 | 0.3-0.5 | ≤0.04 | ≤0.06 |
| L2C | 0.3-0.45 | 0.4-0.7 | 1.3-1.6 | 2.5-3.2 | 0.6-0.8 | 0.3-0.5 | ≤0.04 | ≤0.06 |
Zvenyama Zvivakwa & Microstructure
| Code | Kuoma (HB) | Ak (J/cm2) | Microstructure |
| L2B | 325-375 | ≥50 | P |
| L2C | 350-400 | ≥75 | M |
| M-Martensite, C-Carbide, A-Austenite, P-Pearlite | |||
Ni-hard Steel
Ni-Hard isimbi chena yakakandwa, yakasanganiswa nickel uye chromium inokodzera kushomeka, inotsvedza abrasion kune ese akanyorova uye akaoma maapplication. Ni-Hard chinhu chakanyanya kupfeka-chinodzivirira, chakakandwa mumafomu uye zvimiro izvo zvakanakira kushandiswa munzvimbo dzinoshungurudza uye kupfeka uye mashandisirwo.
Kuumbwa Kwemakemikari
| Zita | C | Si | Mn | Ni | Cr | S | P | Mo | Kuoma |
| Ni-Hard AS2027 Gr Ni Cr 1-550 | 3.2-3.6 | 0.3-0.8 | 0.2-0.8 | 3.0-5.0 | 1.5-3.0 | ≤0.12 | ≤0.15 | ≤0.5 | 550-600HBN |
| Ni-Hard AS2027 Gr Ni Cr 2-550 | 2.8-3.2 | 0.3-0.8 | 0.2-0.8 | 3.0-5.0 | 1.5-3.0 | ≤0.12 | ≤0.15 | ≤0.5 | 500-550HBN |
| Ni-Hard AS2027 Gr Ni Cr 2-550 | 3.2-3.6 | 1.5-2.2 | 0.2-0.8 | 4.0-5.5 | 8.0-10.0 | ≤0.12 | ≤0.15 | ≤0.5 | 630-670HBN |
White Iron Steel
Kuumbwa Kwemakemikari
| Zita | Muumbi weKemikari(%) | |||||||
| C | Si | Mn | Cr | Mo | Cu | P | S | |
| White Iron Steel Liner | 2.0-3.3 | 0-0.8 | ≤2.0 | 12-26 | ≤3.0 | ≤1.2 | ≤0.06 | ≤0.06 |
Zvenyama Zvivakwa & Microstructure
| Zita | HRC | Ak(J/cm2) | Microstructure |
| White Iron Steel Liner | ≥58 | ≥3.5 | M+C+A |
| M-Martensite C- Carbide A-Austenite | |||
Kana iwe uine yakakosha kubvunza zvinhu, ndapota taura injinjini yedu kuti ikushumire!
Nick Sun [email protected]
Nguva yekutumira: Jun-19-2020