Pan American rov pib ua haujlwm Mexico
Pan American Silver (TSX: PAAS) tau tshaj tawm tias cov haujlwm tau rov pib dua ntawm nws cov mines Dolores thiab La Colorada hauv Mexico, tom qab rov pib dua nws cov haujlwm Shahuindo, La Arena, San Vicente thiab Manantial Espejo, pib thaum lub Tsib Hlis.
Cov mines tau pib ua haujlwm ntawm kev txo qis kom ua raws li cov txheej txheem tshiab hauv kev teb rau covid-19, Pan American tau hais.
Pan American tseem tab tom tos kev tso cai tswj hwm kom rov pib ua haujlwm Huaron thiab Morococha hauv Peru.
Lub ntiaj teb thib ob loj tshaj plaws thawj cov neeg tsim khoom lag luam tau ncua kev ua haujlwm ib txwm nyob ntawm nws cov mines hauv Mexico, Peru, Argentina thiab Bolivia thaum Lub Peb Hlis kom ua raws li qhov yuav tsum tau ua hauv lub tebchaws kev ntsuas cais tawm.
Timmins West thiab Bell Creek mines hauv Canada tau txuas ntxiv ua haujlwm ntawm 90% muaj peev xwm.
"Peb tab tom ua raws li txoj hauv kev ua tib zoo rov pib ua haujlwm, vim peb ua haujlwm rov qab ua kom tiav qib kev tsim khoom ntawm peb cov haujlwm thaum tiv thaiv kev noj qab haus huv thiab kev nyab xeeb ntawm peb cov neeg," CEO Michael Steinmann tau hais.
Pan American tau thim nws 2020 kev taw qhia kev ua haujlwm thaum Lub Peb Hlis 12, 2020, muab qhov tsis paub meej txog kev sib kis.
Ib tag hmo Tuesday, Pan American cov khoom lag luam tau nqis 6% ntawm TSX. Lub tuam txhab muaj C $ 8.1 billion kev lag luam peev.
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