Endeavour Silver ayaa dib u furtay macdanaha Mexico
Kanada Endeavor Silver (TSX: EDR) (NYSE: EXK) ayaa dib uga hawlgelisay saddexdeeda macdan-dahab ee dhulka hoostiisa ah ee Mexico, ka dib oggolaanshaha masuuliyiinta caafimaadka ee waddanka.
Soo saaraha qalinka fadhigoodu yahay Vancouver wuxuu xusay in miinada iyo dhirtu ay kor u kacayso si ay u gaadhaan hawlgallada caadiga ah. Waxa kale oo ay sheegtay in shaqaalaha sahaminta ay dib u bilaabi doonaan khariidaynta, samaynta iyo qodista barnaamijyada bisha June.
Ku dhawaaqista ayaa daba socota warka ka soo baxay macdanta Canadian-ka ee Fortuna Silver Mines (NYSE: FSM) (TSX: FVI) in miinadeeda San José, ee ku taal koonfurta Mexico ee Oaxaca, ay si buuxda u foorarsatay.
Horaantii bishan, Endeavor Silver waxa ay soo bandhigtay khasaare saafi ah rubuci hore, iyada oo dakhligu hoos u dhacay sababtoo ah hakinta hawlihii mashruuca El Cubo. Natiijooyinka waxaa sidoo kale saameeyay wax soo saarka galay agabka halkii uu isla markiiba iibin lahaa.
Endeavor waxa ay Mexico ku leedahay saddex macdan oo dahab ah: Macdanta Guanaceví ee gobolka Durango, macdanta Bolañitos ee Guanajuato iyo macdanta El Compás ee gobolka Zacatecas.
Dhowr shirkadood oo kale, oo ay ku jiraan Newmont Mining (NYSE: NEM), Pan American Silver (TSX: PAAS), Alamos Gold (TSX, NYSE: AGI), Argonaut Gold (TSX: AR), Sierra Metals (TSX: SMT), Excellon Resources (TSX: EXN) iyo Torex Gold (TSX: TXG), ama waxay dib u bilaabeen macdantoodii Mexico ama waxay qorsheynayaan inay sidaas sameeyaan maalmaha soo socda.
Birta ugu dhibka badan
Silver ayaa ahayd badeecada ay sida adag u saamaysay xidhitaannada miinada ee ay dawladuhu u igmadeen joojinta fiditaanka coronavirus.
Mexico, oo ah wax soo saarka ugu sarreeya adduunka ee birta, ayaa wajaheysa 2020 mid ka mid ah hoos u dhacii ugu qoto dheeraa ee taariikhdeeda maadaama dhaqaalihi horeba daciifka ahaa uu si dhib yar ula qabsan karo saameynta dillaaca coronavirus.
Dhaqaalaha dalka ayaa la saadaalinayaa inuu hoos u dhaci doono 6.7% sanadkan, taasoo ka qoto dheer marka loo eego dhibaatadii Tequila ee bartamihii 1990-meeyadii, sahankii ugu dambeeyay ee falanqeeyayaasha Citibanamex ayaa muujinaya.
Mexico waxay mas'uul ka tahay ku dhawaad 23% wax soo saarka adduunka ee qalinka, oo soo saarta in ka badan 200 milyan oo wiqiyadood sanadkii hore, marka loo eego 196.6 milyan ounces sanadka 2018.
Waxa kale oo ay leedahay macdanta naxaasta iyo zinc-ga waaweyn, oo ay maamusho Grupo Mexico iyo Southern Copper, waxayna soo saartaa xaddi badan oo dahab ah, taasoo ka dhigaysa waaxda macdanta inay masuul ka tahay 4% wax soo saarka guud ee qaranka.
Kubadda Mill Liner Xulashada Qalabka
Waxyaabaha kala duwan ee la jajabiyey, xaaladaha shaqada ee kala duwan waxay u baahan yihiin qalabyo kala duwan oo ku habboon. Sidoo kale, qaybta wax lagu shiido ee aan qallafsanayn iyo qaybta wax lagu shiido waxay u baahan tahay qalabyo kala duwan.
H&G ayaa bixiya agabka soo socda si aad u tuurto makiinadaada kubbadda:
Birta Manganese
Maaddada manganese ee saxanka sare ee birta birta manganese ee saxanka dahaarka guud ahaan waa 11-14%, kaarboonku guud ahaan waa 0.90-1.50%, kuwaas oo intooda badan ka sarreeya 1.0%. Markay tahay culayska saamaynta hooseeya, engegnaanta waxay gaari kartaa HB300-400. Marka culeyska sareeyo, engegnaanta waxay gaari kartaa HB500-800. Iyadoo ku xiran culeyska saameynta, qoto dheer ee lakabka adag wuxuu gaari karaa 10-20mm. Lakabka qallafsan ee leh qallafsanaanta sare waxay iska caabin kartaa saameynta waxayna yareyn kartaa dharbaaxada. Birta manganese-ka sare waxay leedahay wax qabad heer sare ah oo ka-hortagga xirashada iyadoo la raacayo xaaladda saameyn xooggan oo daal ah, sidaas darteed waxaa badanaa loo isticmaalaa qaybaha xirashada u adkaysta ee macdanta, qalabka dhismaha, awoodda kulaylka, iyo qalabka kale ee farsamada. Marka la eego shuruudaha xaaladaha saameynta hooseeya, birta manganese sare ma sameyn karto sifooyinka walxaha sababtoo ah saameynta adkeynta shaqadu maaha mid cad.
Halabuurka Kiimikada
| Magaca | Halabuurka Kiimikada (%) | |||||||
| C | Si | Mn | Cr | Mo | Cu | 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 |
Guryaha makaanikada iyo qaab-dhismeedka biraha
| Magaca | Hardness Dusha sare (HB) | Qiimaha Saamaynta Ak (J/cm2) | Qaab-dhismeedka yar yar |
| Mn14 Mill Liner | ≤240 | ≥100 | A+C |
| Mn18 Mill Liner | ≤260 | ≥150 | A+C |
| C -Carbide | Carbide A-ustenite la hayo | Austenite | |||
Tilmaamaha alaabta
| Cabbirka | Hole Dia (mm) | Dhererka xadhkaha (mm) | ||
| ≤40 | ≥40 | ≤250 | ≥250 | |
| Dulqaad | +20 | +30 | +20 | +30 |
Birta Daawaha ee Chrome
Birta daawaha ee Chromium waxa loo qaybiyaa birta chromium aluminium sare ah (koox ka kooban 8-26% kaarboon ka kooban 2.0-3.6%), birta daawaha chromium dhexdhexaad ah ( content chromium 4-6%, content carbon 2.0-3.2%), hoose Saddex nooc oo ah birta dabaysha (ka kooban chromium 1-3%, kaarboonka 2.1-3.6%). Muuqaalkeeda cajiibka ah ayaa ah in microhardness ee M7C3 eutectic carbide uu yahay HV1300-1800, kaas oo loo qaybiyo qaab shabakad jaban oo go'doonsan martensite (qaabka ugu adag ee shaxanka birta) matrix, yaraynta saameynta dillaaca ee matrixka. Sidaa darteed, xargaha daawaynta sare ee chromium-ka ayaa leh awood sare, adkaanta kubbadda, iyo caabbinta sare ee dharka, iyo waxqabadkeedu wuxuu ka dhigan yahay heerka ugu sarreeya ee qalabka birta u adkaysta ee hadda jira.
Halabuurka Kiimikada
| Magaca | Halabuurka Kiimikada (%) | |||||||
| C | Si | Mn | Cr | Mo | Cu | P | S | |
| Khadka Sare ee Aloyiga Chrome | 2.0-3.6 | 0-1.0 | 0-2.0 | 8-26 | ≤3.0 | ≤1.2 | ≤0.06 | ≤0.06 |
| Dhexdhexaadiyaha Alloy Chrome | 2.0-3.3 | 0-1.2 | 0-2.0 | 4-8 | ≤3.0 | ≤1.2 | ≤0.06 | ≤0.06 |
| Xadhkaha Dabeecadda Aloyiga ee Chrome Low | 2.1-3.6 | 0-1.5 | 0-2.0 | 1-3 | 0-1.0 | ≤1.2 | ≤0.06 | ≤0.06 |
Guryaha makaanikada iyo qaab-dhismeedka biraha
| Magaca | Dusha sare (HRC) Ak (J/cm2) | Qaab-dhismeedka yar yar | ||||
| Khadka Sare ee Aloyiga Chrome | ≥58 | ≥3.5 | M+C+A | |||
| Dhexdhexaadiyaha Alloy Chrome | ≥48 | ≥10 | M+C | |||
| Xadhkaha Dabeecadda Aloyiga ee Chrome Low | ≥45 | ≥15 | M+C+P | |||
| M- Martensite | C - Carbide | A-Austenite | P-Pearlite | |||
Tilmaamaha alaabta
| Cabbirka | Hole Dia. (mm) Dhererka xadhkaha (mm) | |||
| ≤40 | ≥40 | ≤250 | ≥250 | |
| Dulqaad | +20 | +30 | +20 | +30 |
Cr-Mo Alloy Steel
Mashiinnada H&G waxay adeegsadaan birta daawaynta ee Cr-Mo si ay u tuuraan makiinada wax-shiidka. Walaxdan oo ku salaysan heerka Australia, (AS2074 Standard L2B, iyo AS2074 Standard L2C) waxa ay bixisa saamayn heersare ah oo ay xidhato iska caabin dhammaan codsiyada wax-shiidka ee semi-autogenous.
Halabuurka Kiimikada
| Koodhka | Walxaha Kiimikada (%) | |||||||
| C | Si | Mn | Cr | Mo | Cu | 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 |
Hantida Jirka & Dhismayaasha yar yar
| Koodhka | Hardness (HB) | Ak (J/cm2) | Qaab-dhismeedka yar yar |
| L2B | 325-375 | ≥50 | P |
| L2C | 350-400 | ≥75 | M |
| M-Martensite, C-Carbide, A-Austenite, P-Pearlite | |||
Ni-hard Steel
Ni-Hard waa bir shub ah oo cad, oo lagu daray nikkel iyo chromium oo ku habboon saamaynta hoose, naaxinta simbiriirixan ee codsiyada qoyan iyo kuwa qalalan. Ni-Hard waa shay aad u adkaysi badan, oo lagu shubay foomamka iyo qaababka kuwaas oo ku habboon in loo isticmaalo meelaha xoqan iyo xidhashada jawiga iyo codsiyada.
Halabuurka Kiimikada
| Magaca | C | Si | Mn | Ni | Cr | S | P | Mo | Adag |
| 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 |
Birta Cad ee Birta
Halabuurka Kiimikada
| Magaca | Halabuurka Kiimikada (%) | |||||||
| C | Si | Mn | Cr | Mo | Cu | P | S | |
| Xadhkaha Birta Cad ee Birta | 2.0-3.3 | 0-0.8 | ≤2.0 | 12-26 | ≤3.0 | ≤1.2 | ≤0.06 | ≤0.06 |
Hantida Jirka & Dhismayaasha yar yar
| Magaca | HRC | Ak (J/cm2) | Qaab-dhismeedka yar yar |
| Xadhkaha Birta Cad ee Birta | ≥58 | ≥3.5 | M+C+A |
| M-Martensite C- Carbide A-Austenite | |||
Haddii aad hayso su'aal gaar ah, fadlan la xidhiidh injineerkayaga si uu kuugu adeego!
Nick Sun [email protected]
Waqtiga boostada: Juun-19-2020