Camino tau txais daim ntawv tso cai xyaum ua haujlwm rau Los Chapitos hauv Peru

Peruvian Ministry of Energy thiab Mines tau tso cai rau Canada's Camino Corp. (TSXV: COR) kev tso cai pib drilling thiab lwm yam kev tshawb fawb ntawm nws txoj haujlwm  Los Chapitos , nyob rau yav qab teb Arequipa xeev.

Cov miner npaj yuav pib ua daim ntawv qhia, piv txwv thiab kho lub hom phiaj rau lub lim tiam tom ntej rau qhov kev pab cuam drilling tau teem rau lub Cuaj Hli.

Nyob rau tib lub sijhawm, General Directorate of Mining (DGM) ntawm Ministry of Energy thiab Mines tau tso cai Camino los pib cov haujlwm uas tau teev tseg hauv nws qhov kev ntsuam xyuas ib puag ncig, uas tau pom zoo los ntawm General Direction of Mining Environmental Affairs. 

Qhov kev pom zoo tso cai rau cov miner los ntsuas tooj liab mineralization thiab txhim kho drilling platforms raws li 5-kilometer mineralized sib. 

Vim yog covid-19 kis thoob qhov txhia chaw, Edmonton-based tuam txhab kuj yuav tsum tau thov kev pom zoo rau Kev Saib Xyuas, Tiv Thaiv thiab Tswj Kev Npaj uas tso cai rau nws muaj txog li 10 tus neeg ua haujlwm ntawm qhov project thaum Lub Xya Hli thiab Lub Yim Hli.

Jay Chmelauskas, Camino tus thawj tswj hwm thiab CEO, tau hais hauv tsab ntawv tshaj tawm xov xwm hais tias "Kuv ntseeg tias peb yog ib lub tuam txhab tshawb nrhiav me me los pib tshawb nrhiav cov haujlwm hauv Peru txij thaum pib ntawm covid-19 kev txwv.

"Nrog peb pab neeg hauv Peruvian, peb yuav ua raws li kev ceev faj thiab ntsuas raws li peb cov cai ntawm covid-19 los txuas ntxiv peb cov kev tshawb pom tooj liab ntawm Los Chapitos kom muaj kev nyab xeeb," Chmelauskas tau hais.

"Peb cov kws tshawb fawb geologists yuav ua cov phiaj xwm xyaum ua haujlwm, tshwj xeeb tshaj yog cov tshiab tooj liab mineralization tau txheeb xyuas nyob rau sab qab teb ntawm qhov kev xyaum xyaum ua haujlwm rau xyoo 2017/18 txhawm rau xyaum lub Cuaj Hli no. Peb lub zeem muag yog txhawm rau nthuav dav thaj chaw paub ntawm tooj liab mineralization, phiaj xwm thaj chaw tshiab ntawm mineralization, thiab pib txiav txim siab qhov loj ntawm tooj liab system ntawm Los Chapitos. "

Lub Ni-Hard Steel dab tsi?

Ni-Hard yog ib qho dawb cam khwb cia hlau, alloyed nrog npib tsib xee thiab chromium haum rau qhov tsis tshua muaj kev cuam tshuam, zawv zawg abrasion rau ob qho tib si ntub thiab qhuav. Ni-Hard yog cov khoom siv hnav-resistant, cam khwb cia rau hauv cov ntaub ntawv thiab cov duab uas zoo tagnrho rau siv nyob rau hauv abrasive thiab hnav ib puag ncig thiab kev siv. Kev siv cov khoom siv no feem ntau pib nrog Qws Mills thiab Pob Zeb, qhov kev cuam tshuam tau txiav txim siab tsawg txaus rau qhov nkig tsis tau hnav cov khoom siv tiv taus zoo heev. Txawm li cas los xij, tam sim no nws tau suav tias yog siv tsis tau hauv lub teeb ntawm kev siv cov hlau chrome siab thiab chrome-moly dawb hlau. Ni-Hard castings yog tsim nrog hnav-resistant yam tsawg kawg nkaus ntawm 550 Brinell hardness, tawv dawb cam khwb cia hlau muaj 4% Ni thiab 2% chrome, siv rau abrasive resistant thiab hnav-resistant daim ntaub ntawv nyob rau hauv cov nram qab no industries:

• Mining
• Ntiaj teb tuav
• Asphalt
• Cement mills

Ni-hard steel qauv yog ASTM A532 Hom 1, Hom 2, thiab Hom 4.

Rau zeb liners, peb cov foundry siv ASTM A532 Hom 4 los nrum.

Ni-Hard Mill Liners Cov Khoom Siv Tshuaj Muaj Zog

Lub luag haujlwm ntawm cov tshuaj sib txawv hauv Ni-hard mill liners:

Carbon:  feem ntau ntawm lawv muaj nyob rau hauv carbide nyob rau hauv daim ntawv ntawm cov compound, thiab cov ntsiab lus ntawm carbon yaj nyob rau hauv lub matrix yog kuj tsawg. Txhawm rau ua kom cov alloy muaj qee qhov toughness, cov ntsiab lus carbon yog xaiv nyob rau hauv ntau yam ntawm Hypoeuectic. Qhov siab dua cov ntsiab lus carbon yog, ntau carbides muaj, qhov qis dua qhov hardenability yog, thiab lub toughness yog tsawg heev tom qab quenching; Yog tias cov ntsiab lus carbon tsawg dhau thiab cov ntsiab lus carbide tsawg dhau, cov hlau tsis tuaj yeem hardened, thiab cov alloy muaj pes tsawg leeg deviates los ntawm eutectic tivthaiv, uas yog ib qho yooj yim mus rau shrinkage kab noj hniav thiab porosity. Cov ntsiab lus carbon nyob rau hauv cov hlau tsis tsuas yog txiav txim siab tus naj npawb ntawm carbide thiab eutectic carbides, tab sis kuj cov carbon yaj nyob rau hauv lub matrix kuj muaj ib tug tseem ceeb heev cuam tshuam rau cov tom ntej kub kev kho mob ntawm cov alloy. Nrog rau qhov nce ntawm cov ntsiab lus carbon nyob rau hauv lub matrix, lub martensite transformation point nyob rau hauv lub alloy txo, uas ua rau ib tug nce ntawm cov residual austenite ntim, thiab lub matrix yuav tsis hardened txaus.

Chromium:  chromium yog ib qho muaj zog carbide tsim cov khoom. Ntxiv cov chromium tsim nyog tuaj yeem ua kom ntseeg tau tias muaj qee yam ntawm M7C3 hom carbide, uas yuav txhim kho qhov hnav tsis kam ntawm cov khoom.

Silicon:  Silicon yog ib qho tseem ceeb txhawb graphitization, feem ntau muaj nyob rau hauv lub matrix kom ntxiv dag zog rau lub matrix, thaum cov ntsiab lus siab, pearlite yog ib qho yooj yim mus tshwm. Tsis tas li ntawd, thaum lub alloy muaj txaus hardenability, ntxiv silicon tsim nyog yuav txo tau cov austenite tuav thiab txhim kho hnav tsis kam.

Nickel:  npib tsib xee yog cov khoom ruaj khov ntawm austenite, uas tuaj yeem txhim kho cov tawv tawv ntawm cov hlau zoo heev. Vim yog tsim los ntawm ntau cov carbides nyob rau hauv lub alloy, lub enrichment degree ntawm npib tsib xee nyob rau hauv lub matrix yog ho nce thiab lub hardenability yuav ua tau tag nrho exerted. Thaum cov ntsiab lus ntawm nickel yog 4% ~ 6%, martensite qauv tuaj yeem tau txais, uas tuaj yeem txhim kho qhov hnav tsis kam ntawm cov khoom.

Manganese:  nws tuaj yeem tshem tawm cov txiaj ntsig tsis zoo ntawm leej faj, stabilize carbides, thiab inhibit qhov tsim ntawm pearlite. Manganese yog lub zog ruaj khov austenite hauv martensitic dawb cam khwb cia hlau. Txawm li cas los xij, yog tias cov ntsiab lus siab dhau lawm, qhov khaws cia austenite yuav nce ntxiv thiab lub zog yuav raug txo.

Ni-Hard Mill Liners Kev kho cua sov

Lub hom phiaj tseem ceeb ntawm kev kho cua sov yog kom tau txais qhov xav tau hardness thiab zoo tagnrho microstructure. Hauv cov txheej txheem kev kho cua sov, qhov kub austenitizing yog qhov tseem ceeb tshaj plaws. Tsis tas li ntawd, kev tswj tuav lub sijhawm thiab qhov txias txias muaj qhov sib txawv. Cov txheej txheem kev kho cua sov hauv qab no tuaj yeem raug xaiv rau qhov hnav-tiv taus ntawm cov tawv nickel cam khwb cia hlau IV khoom:

• Ob qhov ntsuas kub qis ntawm 550 ℃ thiab 450 ℃ tau txais yuav.
• Lub annealing kub yog txiav txim raws li qhov tseeb muaj pes tsawg leeg ntawm cov khoom, Annealing ntawm 750 ℃ ​​~ 850 ℃.

Nyob rau hauv cov txheej txheem ntawm kev kho cua sov, tus nqi cua sov thiab cov cua txias yuav tsum nruj me ntsis tswj kom cov cua sov thiab txias ntawm qhov chaw, thiaj li tsis txhob tawg los ntawm thermal stress.

Cov txheej txheem cuam tshuam

1. Cov txheej txheem ntsuas: xa mus rau cov ntaub ntawv txawv teb chaws, cov ntaub ntawv kuaj sim, thiab kev xyaum tsim khoom, qhov ntsuas yuav tsum yog 1.5% - 2.0%.
2. Machining nyiaj pub dawb: vim tias qhov hardness ntawm cov khoom tom qab kev kho cua sov mus txog 60HRC, nws nyuaj heev rau kev ua haujlwm. Yog li ntawd, qhov nyiaj pub rau machining yuav tsum tsawg li tsawg tau. Nyob rau hauv txoj cai, qhov nyiaj pub rau machining yuav tsum txaus, feem ntau 2-3 hli.
3. Pouring kub: txhawm rau ua kom cov qauv sab hauv ntawm lub casting yog compact, lub pouring kub yuav tsum tau tswj ntawm ib tug qis kub, feem ntau tsis ntau tshaj 1300 ℃.
4. Lub Sijhawm Boxing: vim qhov kev sib tsoo loj ntawm cov khoom siv, lub sijhawm ntaus ntawv yuav tsum tau tswj nruj me ntsis raws li lub caij tom qab nchuav. Feem ntau, lub thawv tuaj yeem qhib tau ib lub lis piam tom qab casting.
5. Tsim cov rooj vag thiab riser system: txij li lub hardness ntawm npib tsib xee nyuaj cam khwb cia hlau yog ntau tshaj 50HRC, nws yog ib qho yooj yim rau tawg tom qab raug kub ceev thiab txias. Yog li ntawd, cov roj txiav lossis arc gouging tsis tuaj yeem siv rau cov dej risers, thiab tsuas yog siv cov txheej txheem siv tshuab xwb. Txhawm rau ua kom yooj yim tshem tawm cov dej riser, thaum tsim cov dej riser, lub rooj zaum riser yuav tsum yog li 15 hli siab tshaj qhov chaw nyob, thiab nyob rau hauv cov xwm txheej ntawm kev pub mis txaus, "caj dab" yog tsim los ntawm lub hauv paus ntawm riser. Raws li rau tus naj npawb ntawm risers, lub hauv paus ntsiab lus yog los xyuas kom meej lub internal ntom qauv; Nyob rau hauv lub rooj vag system, muaj ib tug ncaj rooj vag, ib tug transverse rooj vag, thiab plaub sab hauv nozzles, uas yog nyob rau hauv qhib rooj vag system.
6. Ntxuav thiab sib tsoo: tom qab kev kho cua sov ntawm cov zeb liners, cov dej thiab riser cag yuav tsum tau ntxuav thiab polished. Thaum sib tsoo, lub zos overheating yuav tsum tsis txhob tsim kom tsis txhob tawg.

@Nick Sun     [email protected]