Endeavor Silver rov qhib Mexico mines
Canada's Endeavor Silver (TSX: EDR) (NYSE: EXK) tau rov ua haujlwm ntawm nws peb lub pob zeb nyiaj-kub hauv av hauv Mexico, tom qab kev pom zoo los ntawm lub teb chaws cov neeg saib xyuas kev noj qab haus huv.
Tus tsim nyiaj txiag hauv Vancouver tau sau tseg tias nws cov mines thiab cov nroj tsuag tau nce siab kom ua tiav cov haujlwm ib txwm muaj. Nws kuj tau hais tias cov neeg tshawb nrhiav yuav rov pib ua daim ntawv qhia, piv txwv thiab cov phiaj xwm drilling hauv lub Rau Hli.
Cov ntawv tshaj tawm ua raws li xov xwm los ntawm cov phooj ywg Canadian miner Fortuna Silver Mines (NYSE: FSM) (TSX: FVI) tias nws lub San José kuv, hauv Mexico lub xeev yav qab teb Oaxaca, rov qab tag nrho qaij.
Nyuam qhuav pib lub hlis no, Endeavor Silver tau tshaj tawm qhov poob hauv thawj peb lub hlis twg, nrog cov nyiaj tau los poob vim raug ncua kev ua haujlwm ntawm El Cubo project. Cov txiaj ntsig tau raug cuam tshuam los ntawm cov khoom lag luam uas nkag mus rau hauv cov khoom muag es tsis yog muag tam sim.
Endeavor muaj peb qhov nyiaj-kub kub hauv Mexico: Guanaceví mine hauv xeev Durango, Bolañitos mine hauv Guanajuato thiab El Compás mine hauv xeev Zacatecas.
Ntau lub tuam txhab, suav nrog Newmont Mining (NYSE: NEM), Pan American Silver (TSX: PAAS), Alamos Kub (TSX, NYSE: AGI), Argonaut Kub (TSX: AR), Sierra Metals (TSX: SMT), Excellon Resources (TSX: EXN) thiab Torex Gold (TSX: TXG), tau rov pib dua lawv cov mines Mev lossis npaj yuav ua li ntawd nyob rau hnub tom ntej.
Hardest ntaus hlau
Nyiaj tau yog cov khoom lag luam hnyav tshaj plaws los ntawm kev kaw kuv lub luag haujlwm los ntawm tsoomfwv kom txwv tsis pub kis tus kabmob coronavirus.
Mexico, lub ntiaj teb cov neeg tsim khoom loj tshaj plaws ntawm cov hlau, tab tom ntsib xyoo 2020 yog ib qhov kev poob qis tshaj plaws hauv nws keeb kwm vim tias kev lag luam twb tsis muaj zog tuaj yeem cuam tshuam nrog kev cuam tshuam ntawm tus kabmob coronavirus.
Lub teb chaws txoj kev lag luam tau kwv yees tias yuav cog lus 6.7% xyoo no, tob dua li thaum lub sijhawm muaj kev puas tsuaj Tequila Crisis ntawm nruab nrab-1990s, qhov tseeb Citibanamex cov kws tshuaj ntsuam xyuas cov ntaub ntawv qhia.
Mexico yog lub luag haujlwm rau ze li 23% ntawm lub ntiaj teb kev tsim cov nyiaj, churning tawm ntau dua 200 lab ooj xyoo tas los, nce los ntawm 196.6 lab ooj hauv xyoo 2018.
Nws kuj tseem muaj cov tooj liab thiab zinc mines loj, ua haujlwm los ntawm Grupo Mexico thiab Southern Copper, thiab tsim cov nyiaj kub ntau, ua rau cov mining sector muaj lub luag haujlwm txog li 4% ntawm lub teb chaws cov khoom lag luam tag nrho.
Pob Zeb Zeb Liner Khoom Xaiv
Cov khoom sib txawv crushed, txawv kev ua haujlwm xav tau cov ntaub ntawv sib txawv kom haum. Tsis tas li ntawd, cov ntxhib sib tsoo compartment thiab nplua sib tsoo compartment xav tau cov ntaub ntawv sib txawv.
H&G Machinery muab cov khoom hauv qab no los nrum koj lub pob zeb liner:
Manganese hlau
Cov ntsiab lus ntawm cov manganese steel pob zeb hauv ob sab phlu yog feem ntau 11-14%, thiab cov ntsiab lus carbon feem ntau yog 0.90-1.50%, feem ntau yog siab dua 1.0%. Ntawm qhov cuam tshuam qis, qhov hardness tuaj yeem ncav cuag HB300-400. Thaum muaj kev cuam tshuam loj, lub hardness tuaj yeem ncav cuag HB500-800. Nyob ntawm qhov cuam tshuam, qhov tob ntawm txheej txheej hardened tuaj yeem ncav cuag 10-20mm. Lub hardened txheej nrog siab hardness tuaj yeem tiv thaiv kev cuam tshuam thiab txo qis hnav. High manganese steel muaj kev ua tau zoo los tiv thaiv kev hnav zoo nyob rau hauv cov xwm txheej ntawm kev cuam tshuam zoo abrasive hnav, yog li nws feem ntau siv rau hauv qhov hnav-tiv taus ntawm cov mining, cov khoom siv, thermal zog, thiab lwm yam khoom siv kho tshuab. Nyob rau hauv cov xwm txheej uas tsis tshua muaj kev cuam tshuam, siab manganese hlau tsis tuaj yeem ua rau cov yam ntxwv ntawm cov khoom siv vim tias kev ua haujlwm hardening tsis pom tseeb.
Tshuaj muaj pes tsawg leeg
| Lub npe | Chemical Composition (%) | |||||||
| C | Si | Mn | Cr | Mo | Cu | P | S | |
| Mn14 Mill Liner | 0.9-1.5 hli | 0.3-1.0 | 11-14 | 0-2.5 hli | 0-0.5 hli | ≤ 0.05 | ≤ 0.06 | ≤ 0.06 |
| Mn18 Zeb Liner | 1.0-1.5 hli | 0.3-1.0 | 16-19 | 0-2.5 hli | 0-0.5 hli | ≤ 0.05 | ≤ 0.06 | ≤ 0.06 |
Mechanical zog thiab metallographic qauv
| Lub npe | Surface Hardness (HB) | Tus nqi cuam tshuam Ak (J / cm2) | Microstructure |
| Mn14 Mill Liner | ≤ 240 | ≥100 | A + C |
| Mn18 Zeb Liner | ≤ 260 | ≥150 | A + C |
| C -Carbide | Carbide A-Retained austenite | Austenite | |||
Khoom specification
| Loj | Qhov Dia.(mm) | Liner Ntev (mm) | ||
| ≤ 40 | ≥40 | ≤250 | ≥250 | |
| Ua siab ntev | +20 | +30 | +20 | +30 |
Chrome Alloy hlau
Chromium alloy cam khwb cia hlau muab faib ua high chromium alloy cam khwb cia hlau (chromium ntsiab lus 8-26% carbon ntsiab lus 2.0-3.6%), nruab nrab chromium alloy cam khwb cia hlau (chromium ntsiab lus 4-6%, carbon ntsiab lus 2.0-3.2%), tsawg chromium Peb hom alloy cam khwb cia hlau (chromium ntsiab lus 1-3%, cov ntsiab lus carbon 2.1-3.6%). Nws qhov zoo tshaj plaws feature yog hais tias lub microhardness ntawm M7C3 eutectic carbide yog HV1300-1800, uas yog faib nyob rau hauv daim ntawv ntawm ib tug tawg network thiab cais nyob rau hauv lub martensite (lub hardest qauv nyob rau hauv cov hlau matrix) matrix, txo cov cleavage nyhuv ntawm matrix. Yog li ntawd, high-chromium alloy liner muaj lub zog siab, pob zeb toughness, thiab siab hnav tsis kam, thiab nws qhov kev ua tau zoo sawv cev rau qib siab tshaj plaws ntawm cov khoom siv hlau tam sim no.
Tshuaj muaj pes tsawg leeg
| Lub npe | Chemical Composition (%) | |||||||
| C | Si | Mn | Cr | Mo | Cu | P | S | |
| High Chrome Alloy Liner | 2.0-3.6 | 0-1.0 Nws | 0-2.0 Nws | 8–26 | ≤3.0 | ≤1.2 | ≤ 0.06 | ≤ 0.06 |
| Nruab nrab Chrome Alloy Liner | 2.0-3.3 | 0-1.2 hli | 0-2.0 Nws | 4-8 | ≤3.0 | ≤1.2 | ≤ 0.06 | ≤ 0.06 |
| Tsawg Chrome Alloy Liner | 2.1-3.6 | 0-1.5 hli | 0-2.0 Nws | 1-3 | 0-1.0 Nws | ≤1.2 | ≤ 0.06 | ≤ 0.06 |
Mechanical zog thiab metallographic qauv
| Lub npe | Nto (HRC) Ak (J / cm2) | Microstructure | ||||
| High Chrome Alloy Liner | ≥58 | ≥3.5 | M+C+A | |||
| Nruab nrab Chrome Alloy Liner | ≥48 | ≥10 | M+C | |||
| Tsawg Chrome Alloy Liner | ≥45 | ≥15 | M+C+P | |||
| M- Martensite | C - Carbide | A-Austenite | P-Pearlite | |||
Khoom specification
| Loj | Qhov Dia.(mm) Liner Length (mm) | |||
| ≤ 40 | ≥40 | ≤250 | ≥250 | |
| Ua siab ntev | +20 | +30 | +20 | +30 |
Cr-Mo Alloy hlau
H&G Machinery siv Cr-Mo alloy hlau los nrum pob zeb liner. Cov khoom siv no raws li Australia tus qauv, (AS2074 Standard L2B, thiab AS2074 Standard L2C) nws muab kev cuam tshuam zoo dua thiab hnav tsis kam nyob rau hauv txhua daim ntawv thov semi-autogenous milling.
Tshuaj muaj pes tsawg leeg
| Code | Chemical Elements (%) | |||||||
| C | Si | Mn | Cr | Mo | Cu | P | S | |
| L2B | 0.6-0.9 hli | 0.4-0.7 hli | 0.6-1.0 | 1.8-2.1 | 0.2-0.4 hli | 0.3-0.5 hli | ≤ 0.04 | ≤ 0.06 |
| L2C | 0.3-0.45 Nws | 0.4-0.7 hli | 1.3-1.6 | 2.5-3.2 | 0.6-0.8 hli | 0.3-0.5 hli | ≤ 0.04 | ≤ 0.06 |
Physical Property & Microstructure
| Code | Hardness (HB) | Ak (J / cm2) | Microstructure |
| L2B | 325-375 : kuv | ≥50 | P |
| L2C | 350-400 Nws | ≥75 | M |
| M-Martensite, C-Carbide, A-Austenite, P-Pearlite | |||
Ni-Hard Steel
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.
Tshuaj muaj pes tsawg leeg
| Lub npe | C | Si | Mn | Ni | Cr | S | P | Mo | Hardness |
| Ni-Hard AS2027 Gr Ni Cr 1-550 | 3.2-3.6 | 0.3-0.8 hli | 0.2-0.8 hli | 3.0-5.0 | 1.5-3.0 Nws | ≤ 0.12 | ≤ 0.15 | ≤0.5 | 550-600 HBN |
| Ni-Hard AS2027 Gr Ni Cr 2-550 | 2.8-3.2 | 0.3-0.8 hli | 0.2-0.8 hli | 3.0-5.0 | 1.5-3.0 Nws | ≤ 0.12 | ≤ 0.15 | ≤0.5 | 500-550 HBN |
| Ni-Hard AS2027 Gr Ni Cr 2-550 | 3.2-3.6 | 1.5-2.2 | 0.2-0.8 hli | 4.0-5.5 | 8.0-10.0 Nws | ≤ 0.12 | ≤ 0.15 | ≤0.5 | 630-670 HBN |
Dawb Hlau Hlau
Tshuaj muaj pes tsawg leeg
| Lub npe | Chemical Composition (%) | |||||||
| C | Si | Mn | Cr | Mo | Cu | P | S | |
| Dawb Hlau Hlau Liner | 2.0-3.3 | 0-0.8 hli | ≤ 2.0 | 12-26 | ≤3.0 | ≤1.2 | ≤ 0.06 | ≤ 0.06 |
Physical Property & Microstructure
| Lub npe | HRC | Ak(J/cm2) | Microstructure |
| Dawb Hlau Hlau Liner | ≥58 | ≥3.5 | M+C+A |
| M-Martensite C-Carbide A-Austenite | |||
Yog tias koj muaj lus nug tshwj xeeb, thov hu rau peb tus engineer los pab koj!
Nick Sun [email protected]
Post lub sij hawm: Jun-19-2020