Camino anowana mvumo yekuboorera yepurojekiti yeLos Chapitos muPeru

Bazi rePeruvia reMagetsi neMigodhi rakapa Camino Corp. yeCanada (TSXV: COR) mvumo yekuti itange kuchera nemamwe mabasa ekuongorora pachirongwa chayo  cheLos Chapitos , chiri kumaodzanyemba kwepurovhinzi yeArequipa.

Mucheri anoronga kutanga kugadzira mepu, kutora sample uye kunatsa zvinangwa svondo rinouya zvechirongwa chekuchera chakarongerwa Gunyana.

Panguva imwe cheteyo, General Directorate of Mining (DGM) yeBazi reMagetsi neMigodhi yakapa Camino mvumo yekuti itange mabasa akatsanangurwa mukuongorora kukanganiswa kwezvakatipoteredza, izvo zvakatenderwa neGeneral Direction of Mining Environmental Affairs. 

Mvumo inobvumira mucheri kuti aedze kucherwa kwemhangura uye kugadzira mapuratifomu ekuchera achitevedza 5-kilomita ine mineralized maitiro. 

Nekuda kwedenda recovid-19, kambani yeEdmonton yakatozokumbirawo mvumo yeSurveillance, Prevention and Control Plan iyo inobvumira kuti ive nevashandi vanosvika gumi pachirongwa ichi muna Chikunguru naNyamavhuvhu.

"Ini ndinotenda kuti isu tiri mamwe emakambani ekutanga ekuongorora ekutanga muPeru kubva pakatanga kurambidzwa covid-19," Jay Chmelauskas, mutungamiri weCamino uye CEO, akadaro mukutaura kwenhau.

"Nechikwata chedu chePeruvia, tichaenderera mberi nekuchenjerera uye nekuyerwa nzira tichitevera mitemo yedu yeCovid-19 kuenderera mberi nekuedza kwedu kutsvaga mhangura kuLos Chapitos nenzira yakachengeteka," akadaro Chmelauskas.

“Vadzidzisi vedu vachange vachigadzira zvicherwa, kunyanya kucherwa kwemhangura kutsva kwakazoonekwa kumaodzanyemba kwechirongwa chekucheresa matombo mumwaka wa2017/18 kusvika muna Gunyana. Chiono chedu ndechekuwedzera nzvimbo dzinozivikanwa dzekucherwa kwemhangura, kunanga nzvimbo nyowani dzekuita zvicherwa, uye kutanga kuona saizi yemhangura system kuLos Chapitos. "

Chii chinonzi 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. Iko kushandiswa kwerudzi urwu rwezvinhu kwaiwanzotanga neRod Mills neBall Mills, uko zvinokanganisa zvaionekwa zvakaderera zvekuti iyi brittle asi yakanyanya abrasive resistant wear material kuti iite zvakanaka. Nekudaro, iko zvino yave kunzi haichashandi muchiedza chekushandiswa kweakakwira chrome irons uye chrome-moly white iron. Ni-Hard castings inogadzirwa ine isingapfekeki-inomira zvishoma ye550 Brinell kuomarara, yakaoma chena yakakandwa iron ine 4% Ni uye 2% chrome, inoshandiswa kune abrasive inopokana uye isingapfeki maapplication mumaindasitiri anotevera:

• Mining
• Kubata Kwepasi
• Asphalt
• Zvigayo zvesimende

Ni-hard simbi chiyero ndeye ASTM A532 Rudzi rwekutanga, Rudzi rwechipiri, uye Rudzi rwechina.

Kune mill liners, yedu yekutanga inoshandisa ASTM A532 Type 4 kukanda.

Ni-Hard Mill Liners Material Chemical Composition

Basa reakasiyana emakemikari zvinhu muNi-hard mill liners:

Carbon:  mazhinji acho aripo mucarbide muchimiro chekomboni, uye zvirimo zvekabhoni yakanyungudika mumatrix zvakaderera. Kuti uite kuti alloy ive nehumwe kuoma, iyo kabhoni yemukati inosarudzwa mumhando yeHypoeutectic. Iyo yakakwirira iyo kabhoni yemukati, iyo yakawanda carbides iripo, iyo yakaderera iyo kuomarara kuri, uye kuomarara kwakaderera zvakanyanya mushure mekudzima; kana iyo kabhoni yemukati yakadzikira uye iyo carbide yemukati idiki, iyo alloy haigone kuomeswa, uye alloy kuumbwa kunotsauka kubva kune eutectic chikamu, izvo zviri nyore kuoneka shrinkage mhango uye porosity. Iyo kabhoni yemukati mune alloy haingotaridzi huwandu hwecarbides uye eutectic carbides, asiwo kabhoni yakanyungudika mumatrix zvakare ine yakakosha mhedzisiro pane inotevera kupisa kurapwa kwealloy. Nekuwedzera kwekabhoni yemukati mune matrix, iyo martensite shanduko yenzvimbo mune alloy inoderera, zvichikonzera kuwedzera kweinosara austenite vhoriyamu, uye matrix angave asina kuomeswa zvakakwana.

Chromium:  chromium isimba rakasimba rekugadzira carbide. Kuwedzera chromium yakakodzera kunogona kuvepo kwehumwe huwandu hweM7C3 mhando carbide, iyo inovandudza kusapfeka kwechinhu.

Silicon:  Silicon chinhu chinokurudzira graphitization, inonyanya kuwanikwa mumatrix kusimbisa matrix, kana zvirimo zvakakwirira, pearlite iri nyore kuoneka. Uye zvakare, kana iyo alloy iine kukwana kuoma, kuwedzera yakakodzera silicon kunogona kuderedza yakachengetwa austenite uye kunatsiridza kupfeka kuramba.

Nickel:  nickel chinhu chinodzikamisa che austenite, chinogona kuvandudza zvakanyanya kuoma kweiyo alloy. Pamusana pekuumbwa kwenhamba yakawanda ye carbides mu alloy, dhigirii yekupfumisa ye nickel mumatrix inowedzera zvakanyanya uye kuoma kunogona kushandiswa zvizere. Kana zviri mukati nickel iri 4% ~ 6%, martensite chimiro chinogona kuwanikwa, icho chinogona kuvandudza kupfeka kuramba kwezvinhu.

Manganese:  inogona kubvisa zvinokuvadza zvesarufa, kudzikamisa carbides, uye inhibisa kuumbwa kwepearlite. Manganese chinhu chakasimba chakatsiga austenite element mune martensitic white cast iron. Zvisinei, kana zvinyorwa zvakanyanyisa, iyo yakachengetwa austenite ichawedzerwa uye simba richaderedzwa.

Ni-Hard Mill Liners Kupisa Kurapa

Chinangwa chikuru chekurapa kwekupisa ndechekuwana kuomarara kunodiwa uye yakanaka microstructure. Muchiito chekurapa kwekupisa, tembiricha ye austenitizing ndiyo inonyanya kukosha. Mukuwedzera, kutonga kwekubata nguva uye chiyero chekutonhora kune zvakasiyana-siyana. Aya anotevera ekupisa ekurapa masisitimu anogona kusarudzirwa kusakara-inodzivirira zvikamu zveyakaoma nickel cast iron IV zvinhu:

• Maviri akadzika-tembiricha tembiricha pa550 ℃ uye 450 ℃ anogamuchirwa.
• Iyo tembiricha yekudziya inotarwa zvichienderana nekuumbwa chaiko kwezvikamu, Annealing pa750 ℃ ​​~ 850 ℃.

Mukuita kwekupisa kwekupisa, mwero wekupisa uye kutonhora kunofanirwa kudzorwa zvakanyanya kuti ive nechokwadi chekudziya kweyunifomu uye kutonhora kwezvikamu, kuitira kuti udzivise kuputika kunokonzerwa nekupisa kwekushushikana.

Inoenderana process parameters

1. Chiyero chemaitiro: tichitaura nezve data rekunze rakakodzera, dhata rekuyedza marabhoritari, uye maitiro ekugadzira, chiyero chinofanira kunge chiri 1.5% - 2.0%.
2. Machining allowance: nekuti kuoma kwezvinhu mushure mekupisa kupisa kunosvika pamusoro pe60HRC, zvakaoma kuita. Nokudaro, mvumo yekugadzira inofanira kuva shoma sezvinobvira. Muchidimbu, mvumo yekugadzira inofanira kukwana, kazhinji 2-3mm.
3. Kudururira tembiricha: kuitira kuti ive nechokwadi chekuti chimiro chemukati chekukanda chiri compact, tembiricha yekudurura inofanirwa kudzorwa pane yakaderera tembiricha, kazhinji isingapfuuri 1300 ℃.
4. Nguva yebhokisi: nekuda kwemaitiro makuru ekuputika kwezvinhu, nguva yebhokisi inofanira kunyatsodzorwa maererano nemwaka mushure mekudururwa. Kazhinji, bhokisi rinogona kuvhurwa vhiki imwe mushure mekukanda.
5. Dhizaini yegeti uye riser system: sezvo kuoma kwenickel hard cast iron inodarika 50HRC, zviri nyore kutsemuka mushure mekuiswa mukupisa nekukurumidza uye kutonhora. Naizvozvo, kucheka gasi kana arc gouging haigone kushandiswa pakusimuka kwemvura, uye nzira dzemuchina chete dzinogona kushandiswa. Kuti zvive nyore kubviswa kwekusimudza kwemvura, pakugadzira mvura inosimudza, chigaro chepamusoro chinofanira kunge chiri pamusoro pe 15mm kupfuura nzvimbo yekugara, uye pasi pemamiriro ekudya kwakakwana, "mutsipa" wakagadzirirwa pamudzi wekusimudza. Kana iri nhamba yezvikwiriso, musimboti ndeyekuvimbisa iyo yemukati dense chimiro; mugadziriro yemagedhi, mune gedhi rimwe rakatwasuka, gedhi rimwe rakachinjika, uye mapfumo mana emukati, ayo ari ekuvhura gedhi system.
6. Kucheneswa nekukuya: mushure mekupisa kwekupisa kwezvigayo, mvura uye mudzi wekusimudza uchacheneswa nekukwenenzverwa. Panguva yekukuya, kupisa kwepanzvimbo hakuzogadziriswe kudzivirira kutsemuka.

@Nick Sun     [email protected]