Endeavor Silver ya sake buɗe ma'adinan Mexico
Kamfanin Endeavor Silver na Kanada (TSX: EDR) (NYSE: EXK) ya koma aiki a ma'adinan zinare uku na karkashin kasa a Mexico, biyo bayan amincewar hukumomin lafiya na kasar.
Mai samar da azurfa na Vancouver ya lura da hakar ma'adinan sa da tsire-tsire suna ta yin sama don cimma ayyukan yau da kullun. Har ila yau, ta ce ma'aikatan binciken za su sake fara aikin taswira, yin samfuri da kuma hakowa a cikin watan Yuni.
Sanarwar ta biyo bayan labari daga wani ɗan ƙasar Kanada mai hakar ma'adinan Fortuna Silver Mines (NYSE: FSM) (TSX: FVI) cewa ma'adinan San José, a jihar Oaxaca ta kudancin Mexico, ya dawo gabaɗaya.
A farkon wannan watan, Endeavor Silver ya ba da asara mai yawa a cikin kwata na farko, tare da raguwar kudaden shiga saboda dakatar da ayyuka a aikin El Cubo. Sakamako kuma ya shafi abubuwan da suka shiga cikin kaya maimakon tallace-tallace nan take.
Endeavor yana da ma'adinan zinariya guda uku a Mexico: ma'adinan Guanaceví a jihar Durango, ma'adinan Bolañitos a Guanajuato da ma'adinan El Compás a jihar Zacatecas.
Wasu kamfanoni da dama, ciki har da Newmont Mining (NYSE: NEM), Pan American Silver (TSX: PAAS), Alamos Gold (TSX, NYSE: AGI), Argonaut Gold (TSX: AR), Saliyo Metals (TSX: SMT), Excellon Resources (TSX: EXN) da Torex Gold (TSX: TXG), ko dai sun sake fara aikin ma'adinan Mexico ko kuma sun yi shirin yin hakan a cikin kwanaki masu zuwa.
Karfe mafi wuya
Azurfa ita ce kayayyaki mafi wahala da rufe ma'adinan da gwamnatoci suka ba su don dakatar da yaduwar cutar ta coronavirus.
Mexico, babbar mai kera karafa a duniya, tana fuskantar a shekarar 2020 daya daga cikin koma bayan tattalin arziki mafi zurfi a cikin tarihinta yayin da tattalin arzikin da ya riga ya rauni ke iya jurewa tasirin barkewar cutar sankara.
An yi hasashen tattalin arzikin ƙasar zai iya yin kwangila da kashi 6.7% a wannan shekara, mafi zurfi fiye da lokacin rikicin Tequila na tsakiyar shekarun 1990, sabon binciken manazarta Citibanamex ya nuna.
Mexico ce ke da alhakin kusan kashi 23% na samar da azurfa a duniya, tana fitar da fiye da oza miliyan 200 a bara, sama da oza miliyan 196.6 a cikin 2018.
Har ila yau, tana da manyan ma'adinan tagulla da zinc, wanda Grupo Mexico da Kudancin Copper ke sarrafawa, kuma yana samar da adadi mai yawa na zinariya, wanda ke sa bangaren hakar ma'adinan ya dauki nauyin kusan kashi 4% na babban kayan cikin gida na kasar.
Zaɓin Abun Mill Liner
Abubuwan da aka murkushe daban-daban, yanayin aiki daban-daban suna buƙatar nau'ikan kayan aiki daban-daban don dacewa. Har ila yau, ɗakin niƙa mai ƙaƙƙarfan daɗaɗɗen nika mai kyau yana buƙatar nau'in kayan aiki daban-daban.
H&G Machinery yana samar da kayan da za a jefar da injin niƙa naku:
Manganese Karfe
Abubuwan da ke cikin manganese na babban farantin ƙarfe na ƙarfe na ƙarfe na manganese gabaɗaya shine 11-14%, kuma abun cikin carbon gabaɗaya shine 0.90-1.50%, yawancin waɗanda ke sama da 1.0%. A ƙananan nauyin tasiri, taurin zai iya kaiwa HB300-400. A babban tasirin tasiri, taurin zai iya kaiwa HB500-800. Dangane da nauyin tasiri, zurfin daɗaɗɗen Layer zai iya kaiwa 10-20mm. Ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙarfi zai iya tsayayya da tasiri kuma ya rage lalacewa. Babban ƙarfe na manganese yana da kyakkyawan aiki na rigakafin lalacewa a ƙarƙashin yanayin tasirin tasiri mai ƙarfi, don haka ana amfani dashi sau da yawa a cikin sassa masu jurewa na ma'adinai, kayan gini, wutar lantarki, da sauran kayan aikin injiniya. A ƙarƙashin yanayin ƙananan yanayin tasiri, babban ƙarfe na manganese ba zai iya yin amfani da halayen kayan aiki ba saboda aikin hardening aiki ba a bayyane yake ba.
Haɗin Sinadari
| Suna | Haɗin Sinadari (%) | |||||||
| 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 |
Mechanical Properties da metallographic tsarin
| Suna | Surface Hardness (HB) | Tasiri darajar Ak (J/cm2) | Karamin tsari |
| Mn14 Mill Liner | ≤240 | ≥ 100 | A+C |
| Mn18 Mill Liner | ≤260 | ≥150 | A+C |
| C -Carbide | Carbide A-Retained austenite | Austenite | |||
Ƙayyadaddun samfur
| Girman | Hole Dia (mm) | Tsawon Layi (mm) | ||
| ≤40 | ≥40 | ≤250 | ≥250 | |
| Hakuri | +20 | +30 | +20 | +30 |
Chrome Alloy Karfe
Chromium alloy simintin ƙarfe an kasu kashi babban chromium gami simintin ƙarfe (abin ciki na chromium 8-26% carbon abun ciki 2.0-3.6%), matsakaici chromium gami 4-6% chromium abun ciki, carbon abun ciki 2.0-3.2%), low chromium. Nau'i uku na baƙin ƙarfe simintin ƙarfe (abincin chromium 1-3%, abun cikin carbon 2.1-3.6%). Babban fasalinsa shine cewa microhardness na M7C3 eutectic carbide shine HV1300-1800, wanda aka rarraba a cikin nau'in hanyar sadarwa mara kyau kuma an ware shi akan martensite (tsari mafi wuya a cikin matrix karfe) matrix, yana rage tasirin cleavage akan matrix. Saboda haka, babban-chromium alloy liner yana da babban ƙarfi, ƙarfin niƙa na ball, da juriya mai girma, kuma aikin sa yana wakiltar matakin mafi girma na kayan juriya na ƙarfe na yanzu.
Haɗin Sinadari
| Suna | Haɗin Sinadari (%) | |||||||
| 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 |
| Tsakanin 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 |
Mechanical Properties da metallographic tsarin
| Suna | Surface (HRC) Ak (J/cm2) | Karamin tsari | ||||
| High Chrome Alloy Liner | ≥58 | ≥3.5 | M+C+A | |||
| Tsakanin Chrome Alloy Liner | ≥48 | ≥10 | M+C | |||
| Low Chrome Alloy Liner | ≥45 | ≥15 | M+C+P | |||
| M - Martensite | C - Carbide | A-Austenite | P-Pearlite | |||
Ƙayyadaddun samfur
| Girman | Hole Dia (mm) Tsawon Layi (mm) | |||
| ≤40 | ≥40 | ≤250 | ≥250 | |
| Hakuri | +20 | +30 | +20 | +30 |
Cr-Mo Alloy Karfe
H&G Machinery yana amfani da Cr-Mo alloy karfe don jefa layin niƙa. Wannan kayan da ya dogara da ma'aunin Ostiraliya, (AS2074 Standard L2B, da AS2074 Standard L2C) yana ba da tasiri mai inganci da juriya a cikin duk aikace-aikacen niƙa na atomatik.
Haɗin Sinadari
| Lambar | Abubuwan Sinadarai (%) | |||||||
| 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 |
Dukiya ta Jiki & Karamin tsari
| Lambar | Hardness (HB) | Ak (J/cm2) | Karamin tsari |
| L2B | 325-375 | ≥50 | P |
| L2C | 350-400 | ≥75 | M |
| M-Martensite, C-Carbide, A-Austenite, P-Pearlite | |||
Ni-hard Karfe
Ni-Hard farar simintin ƙarfe ne, wanda aka haɗa shi da nickel da chromium wanda ya dace da ƙarancin tasiri, ƙazanta mai zamiya don aikace-aikacen rigar da busassun duka. Ni-Hard abu ne mai jure lalacewa, wanda aka jefa cikin sifofi da sifofi waɗanda suka dace don amfani da su a cikin ɓarna da lalacewa da muhalli da aikace-aikace.
Haɗin Sinadari
| Suna | C | Si | Mn | Ni | Cr | S | P | Mo | Tauri |
| 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 | Saukewa: 630-670HBN |
Farar Karfe
Haɗin Sinadari
| Suna | Haɗin Sinadari(%) | |||||||
| C | Si | Mn | Cr | Mo | Ku | P | S | |
| Farar Karfe Liner | 2.0-3.3 | 0-0.8 | ≤2.0 | 12-26 | ≤3.0 | ≤1.2 | ≤0.06 | ≤0.06 |
Dukiya ta Jiki & Karamin tsari
| Suna | HRC | Ak (J/cm2) | Karamin tsari |
| Farar Karfe Liner | ≥58 | ≥3.5 | M+C+A |
| M-Martensite C- Carbide A-Austenite | |||
Idan kuna da binciken abu na musamman, da fatan za a tuntuɓi injiniyan mu don yi muku hidima!
Nick Sun [email protected]
Lokacin aikawa: Juni-19-2020