Pan American iyambiranso ntchito zaku Mexico
Pan American Silver (TSX: PAAS) yalengeza kuti ntchito zayambiranso kumigodi yake ya Dolores ndi La Colorada ku Mexico, kutsatira kuyambiranso kwa ntchito zake za Shahuindo, La Arena, San Vicente ndi Manantial Espejo, zomwe zinayambika mu May.
Migodi ikugwira ntchito mocheperako kuti igwirizane ndi njira zatsopano pothana ndi Covid-19, Pan American idatero.
Pan American ikuyembekezeranso chilolezo kuti iyambitsenso ntchito za Huaron ndi Morococha ku Peru.
Wopanga siliva wamkulu wachiwiri padziko lonse lapansi adayimitsa ntchito zake m'migodi ku Mexico, Peru, Argentina ndi Bolivia mu Marichi kuti atsatire njira zovomerezeka zokhala m'dzikolo.
Migodi ya Timmins West ndi Bell Creek ku Canada ikupitilizabe kugwira ntchito pa 90%.
"Tikuyang'ana mosamala kuti tiyambitsenso ntchito, pamene tikuyesetsa kubwezeretsanso magwiridwe antchito athu ndikuteteza thanzi ndi chitetezo cha anthu athu," adatero Michael Steinmann.
Pan American idasiya chiwongolero chake cha 2020 pa Marichi 12, 2020, chifukwa chakukayikitsa kokhudzana ndi mliriwu.
Masana Lachiwiri, katundu wa Pan American anali pansi 6% pa TSX. Kampaniyo ili ndi ndalama zokwana $ 8.1 biliyoni zamsika.
Kusankhidwa kwa Zinthu Zopangira Mpira Mill
Zosiyanasiyana zophwanyidwa, zogwirira ntchito zosiyanasiyana zimafunikira ma liner osiyanasiyana kuti agwirizane. Komanso, chipinda chogawirako ndi chopera bwino chimafunikira zingwe zosiyanasiyana.
H&G Machinery imapereka zinthu zotsatirazi kuti muponyere liner yanu ya mphero:
Chitsulo cha Manganese
The manganese zili mkulu manganese zitsulo mpira mphero akalowa mbale nthawi zambiri 11-14%, ndi mpweya zili zambiri 0.90-1.50%, ambiri amene ali pamwamba 1.0%. Pakatundu wocheperako, kuuma kumatha kufika HB300-400. Pakatundu wambiri, kuuma kumatha kufika HB500-800. Kutengera momwe zimakhudzira, kuya kwa wosanjikiza wowuma kumatha kufika 10-20mm. Wosanjikiza wowuma wokhala ndi kuuma kwakukulu kumatha kukana kukhudzidwa ndikuchepetsa kuvala kwa abrasive. Chitsulo chapamwamba cha manganese chimakhala ndi ntchito yabwino kwambiri yotsutsana ndi kuvala pansi pakuvala kwamphamvu kwa abrasive, motero nthawi zambiri amagwiritsidwa ntchito m'magawo osamva amigodi, zida zomangira, mphamvu zotentha, ndi zida zina zamakina. Pansi pazikhalidwe zotsika kwambiri, chitsulo chachikulu cha manganese sichingakhale ndi mawonekedwe azinthuzo chifukwa chowumitsa ntchito sichikuwonekera.
Mapangidwe a Chemical
| Dzina | Mapangidwe a Chemical (%) | |||||||
| C | Si | Mn | Cr | Mo | Ku | 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 |
Zimango katundu ndi kapangidwe metallographic
| Dzina | Kuuma Pamwamba (HB) | Mtengo wa Ak (J/cm2) | Microstructure |
| Mn14 Mill Liner | ≤240 | ≥100 | A+C |
| Mn18 Mill Liner | ≤260 | ≥150 | A+C |
| C -Carbide | Carbide A-yosungidwa austenite | Austenite | |||
Mafotokozedwe azinthu
| Kukula | Hole Dia. (mm) | Kutalika kwa Liner (mm) | ||
| ≤40 | ≥40 | ≤250 | ≥250 | |
| Kulekerera | + 20 | + 30 | + | + 30 |
Chrome Alloy Steel
Chromium aloyi kuponyedwa chitsulo ogaŵikana mkulu chromium aloyi kuponyedwa chitsulo (chromium zili 8-26% mpweya zili 2.0-3.6%), sing'anga chromium aloyi kuponyedwa chitsulo (chromium zili 4-6%, mpweya zili 2.0-3.2%), otsika chromium Mitundu itatu ya aloyi kuponyedwa chitsulo (chromium zili 1-3%, carbon zili 2.1-3.6%). Chochititsa chidwi ndi chakuti microhardness ya M7C3 eutectic carbide ndi HV1300-1800, yomwe imagawidwa mu mawonekedwe a maukonde osweka ndi olekanitsidwa pa martensite (yovuta kwambiri muzitsulo zachitsulo) masanjidwewo, kuchepetsa zotsatira za cleavage pa masanjidwewo. Chifukwa chake, cholumikizira chapamwamba cha chromium chimakhala ndi mphamvu zambiri, kulimba kwa mphero ya mpira, komanso kukana kuvala kwapamwamba, ndipo magwiridwe ake amayimira kuchuluka kwazinthu zomwe zitsulo sizimva kuvala.
Mapangidwe a Chemical
| Dzina | Mapangidwe a Chemical (%) | |||||||
| C | Si | Mn | Cr | Mo | Ku | P | S | |
| High 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 |
| Low Chrome Alloy Liner | 2.1-3.6 | 0-1.5 | 0-2.0 | 1-3 | 0-1.0 | ≤1.2 | ≤0.06 | ≤0.06 |
Zimango katundu ndi kapangidwe metallographic
| Dzina | Pamwamba (HRC) Ak (J/cm2) | Microstructure | ||||
| High Chrome Alloy Liner | ≥58 | ≥3.5 | M+C+A | |||
| Middle Chrome Alloy Liner | ≥48 | ≥10 | M+C | |||
| Low Chrome Alloy Liner | ≥45 | ≥15 | M+C+P | |||
| M-Martensite | C-Carbide | A-Austenite | P-Pearlite | |||
Mafotokozedwe azinthu
| Kukula | Hole Dia. (mm) Kutalika kwa Liner (mm) | |||
| ≤40 | ≥40 | ≤250 | ≥250 | |
| Kulekerera | + 20 | + 30 | + | + 30 |
Cr-Mo Aloyi Chitsulo
H&G Machinery imagwiritsa ntchito chitsulo cha Cr-Mo alloy poponya mphero. Zinthuzi kutengera muyeso waku Australia, (AS2074 Standard L2B, ndi AS2074 Standard L2C) zimapatsa mphamvu komanso kukana kuvala pamapulogalamu onse opangira ma semi-autogenous mphero.
Mapangidwe a Chemical
| Kodi | Chemical Elements (%) | |||||||
| C | Si | Mn | Cr | Mo | Ku | 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 |
Physical Property & Microstructure
| Kodi | Kuuma (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 ndi chitsulo choyera choyera, chosakanikirana ndi faifi tambala ndi chromium yoyenera kutsika pang'ono, ma abrasion otsetsereka pazonse zonyowa komanso zowuma. Ni-Hard ndi chinthu chosamva kuvala kwambiri, chopangidwa m'mawonekedwe ndi mawonekedwe omwe ndi abwino kuti agwiritsidwe ntchito pamapangidwe abrasive ndi kuvala ndi kugwiritsa ntchito.
Mapangidwe a Chemical
| Dzina | C | Si | Mn | Ndi | Cr | S | P | Mo | Kuuma |
| 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 |
Chitsulo Choyera
Mapangidwe a Chemical
| Dzina | Mapangidwe a Chemical (%) | |||||||
| C | Si | Mn | Cr | Mo | Ku | 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 |
Physical Property & Microstructure
| Dzina | Mtengo wa HRC | Ak(J/cm2) | Microstructure |
| White Iron Steel Liner | ≥58 | ≥3.5 | M+C+A |
| M-Martensite C-Carbide A-Austenite | |||
Ngati muli ndi mafunso apadera, chonde lemberani injiniya wathu kuti akuthandizeni!
Nick Sun [email protected]
Nthawi yotumiza: Jun-19-2020