ʻO ka CEC o Zambia e hoʻopau i ka lako mana i Konkola Copper Mines
E ho'ōki ka Zambia's Copperbelt Energy Corp (CEC) i ka hāʻawi ʻana i ka mana i ka ʻāpana kūloko o Vedanta Konkola Copper Mines (KCM) mai ka Pōʻakahi, ua ʻōlelo ʻia ma hope o ke kamaʻilio ʻana no ka hoʻonui ʻana i kā lākou ʻaelike hoʻolako i haki ʻia ma luna o ka aie i ka CEC.
Ua haʻi aku ke Kuhina Energy o Zambia ʻo Mathew Nhkuwa iā Reuters e loaʻa pololei iā KCM i kona mana mai ka ʻoihana aupuni ʻo Zesco, ka mea i kūʻai mua aku i ka uila iā CEC no ka hoʻolako ʻana iā KCM.
Ua ʻōlelo ʻo Nkhuwa, ʻaʻole e hoʻololi hou ʻia ka ʻaelike lako uila ma waena o Zesco a me CEC, i pau i ka lā Malaki 31.
Ua pau ka ʻaelike hoʻolako mana ma waena o CEC a me KCM i ka lā Malaki 31 a ua hoʻonui ʻia ma o ka ʻaelike like ʻole a hiki i Mei 31, wahi a CEC i kahi ʻōlelo ma ka Lāpule. Ua aie ʻo KCM i ka hui ikehu $132 miliona, wahi a CEC.
"Ua haki nā kūkākūkā no ka hoʻonui hou ʻana, ʻoiai nā hana maikaʻi a CEC me ka manaʻoʻiʻo maikaʻi i ka loaʻa ʻana o kahi ʻaelike hou," wahi a ka ʻōlelo.
Ua ʻōlelo ʻia kahi ʻōlelo KCM, ma hope o ka pau ʻana o kāna ʻaelike me CEC, ua komo ka hui i kahi kuʻikahi hou me Zesco, ma ka lā 1 o Iune.
"Ke manaʻo nei mākou i kahi hoʻololi maʻamau i ka hāʻawi ʻana i ka mana mai CEC a i Zesco a ʻo kekahi keakea a i ʻole ka palena ʻana he hana sabotage," wahi a KCM.
I ka ho'āʻo ʻana e ʻae i ka ʻaelike hou, ua ʻimi ʻo CEC e hoʻoholo i ka ʻaiʻē koʻikoʻi o KCM he $132 miliona a loaʻa pū kekahi i kahi kūpaʻa paʻa mai KCM i ka uku manawa o nā uku uila e hiki mai ana, wahi a ia.
Ua ʻōlelo ʻo CEC ua haʻi aku ʻo ia iā KCM e hoʻopau ʻia kāna lako, me ka hoʻohui ʻana ʻo kēia wale nō ke koho i loaʻa ma hope o nā kamaʻilio ʻana.
"Ua mālama pono ʻia e hōʻoia i ke kaʻina hana o ka hoʻopau ʻana i ka lako e hōʻoia i ka palekana o nā limahana a me nā mea hana a mālama i ka pono o ka mine," wahi a CEC.
Loaʻa iā Vedanta o India ma kahi o 80% o KCM.
ʻOiai e lawe ana ʻo Zesco i ka mana i KCM, e hele mau ana ia ma nā laina mana CEC. Ua ʻōlelo ʻo Nkhuwa e uhaki ana ʻo CEC i ke kānāwai inā hōʻole ʻo ia e lawe i ka mana.
"Ua hoʻopuka wau i kahi mea hana kānāwai ma ka Pōʻalima, e haʻi ana i nā laina CEC he mea lawe maʻamau. No laila, koi ʻia ʻo CEC e lawe i ka mana mai Zesco a i KCM ma kahi uku, "wahi a Nkhuwa.
Ke Koho Mea Pili Paa Poepoe
ʻO nā mea i ʻoki ʻia, nā kūlana hana ʻokoʻa e pono ai nā liner material e kūpono. Eia kekahi, ʻo ke keʻena wili liʻiliʻi a me ka ʻāpana wili maikaʻi e pono ai i nā mea liner ʻokoʻa.
H&G Machinery i kēia mau mea e hoʻolei ai i kāu liner wili pōlele:
hao Manganese
He 11-14% ka nui o ka manganese o ka mea kila manganese kiʻekiʻe he 11-14%, a he 0.90-1.50% ka nui o ke kalapona, ʻoi aku ka nui ma luna o 1.0%. Ma nā haʻahaʻa haʻahaʻa haʻahaʻa, hiki i ka paʻakikī ke hiki i HB300-400. Ma nā haʻahaʻa hopena kiʻekiʻe, hiki i ka paʻakikī ke hiki i HB500-800. Ma muli o ke kaumaha o ka hopena, hiki i ka hohonu o ka papa paʻakikī ke hiki i 10-20mm. Hiki i ka papa paʻakikī me ka paʻakikī kiʻekiʻe ke pale aku i ka hopena a hoʻemi i ka lole abrasive. Loaʻa i ke kila manganese kiʻekiʻe ka hana anti-wear maikaʻi ma lalo o ke kūlana o ka ʻaʻahu abrasive hopena ikaika, no laila hoʻohana pinepine ʻia i nā ʻāpana pale ʻaʻahu o ka mining, nā mea hana, ka mana wela, a me nā mea hana ʻē aʻe. Ma lalo o nā kūlana haʻahaʻa haʻahaʻa, ʻaʻole hiki i ke kila manganese kiʻekiʻe ke hana i nā ʻano o ka mea no ka mea ʻaʻole maopopo ka hopena paʻakikī o ka hana.
Hoʻohui Kimia
| Inoa | Ka Hui Kemika（%） | |||||||
| C | ʻO Si | ʻO 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 |
Mechanical waiwai a me metallographic hana
| Inoa | ʻO ka ʻili paʻakikī（HB） | Waiwai hopena Ak（J/cm2） | Microstructure |
| Mn14 Mill Liner | ≤240 | ≥100 | A+C |
| Mn18 Mill Liner | ≤260 | ≥150 | A+C |
| C -Carbide | Carbide A-austenite paʻa | Austenite | |||
Hōʻike huahana
| Nui | Hole Dia.（mm） | Ka lōʻihi o ka laina （mm） | ||
| ≤40 | ≥40 | ≤250 | ≥250 | |
| Hoʻomanawanui | +20 | +30 | +2 | +3 |
Ke kila kila Chrome
Hoʻokaʻawale ʻia ka hao hao chromium kiʻekiʻe (chromium content 8-26% carbon content 2.0-3.6%), medium chromium alloy cast iron (chromium content 4-6%, carbon content 2.0-3.2%), haʻahaʻa chromium ʻEkolu mau ʻano o ka hao i hoʻolei ʻia (chromium content 1-3%, carbon content 2.1-3.6%). ʻO kāna hiʻohiʻona kupaianaha ʻo ka microhardness o ka M7C3 eutectic carbide ʻo HV1300-1800, ka mea i puʻunaue ʻia ma ke ʻano o kahi pūnaewele haʻihaʻi a hoʻokaʻawale ʻia ma ka martensite (ke ʻano paʻakikī o ka matrix metal), e hōʻemi ana i ka hopena cleavage ma ka matrix. No laila, ʻo ka liner kiʻekiʻe-chromium alloy he ikaika kiʻekiʻe, ʻoi aku ka paʻakikī o ka wili pōleʻa, a me ke kūpaʻa ʻaʻahu kiʻekiʻe, a ʻo kāna hana ke hōʻike nei i ke kiʻekiʻe kiʻekiʻe o nā mea ʻaʻahu metala o kēia manawa.
Hoʻohui Kimia
| Inoa | Ka Hui Kemika（%） | |||||||
| C | ʻO Si | ʻO Mn | Cr | Mo | Cu | P | S | |
| Laina Alloy Chrome kiʻekiʻe | 2.0-3.6 | 0-1.0 | 0-2.0 | 8-26 | ≤3.0 | ≤1.2 | ≤0.06 | ≤0.06 |
| Laina Alloy Chrome Waena | 2.0-3.3 | 0-1.2 | 0-2.0 | 4-8 | ≤3.0 | ≤1.2 | ≤0.06 | ≤0.06 |
| Laina Alloy Chrome Haahaa | 2.1-3.6 | 0-1.5 | 0-2.0 | 1-3 | 0-1.0 | ≤1.2 | ≤0.06 | ≤0.06 |
Mechanical waiwai a me metallographic hana
| Inoa | Ili（HRC） Ak（J/cm2） | Microstructure | ||||
| Laina Alloy Chrome kiʻekiʻe | ≥58 | ≥3.5 | M+C+A | |||
| Laina Alloy Chrome Waena | ≥48 | ≥10 | M+C | |||
| Laina Alloy Chrome Haahaa | ≥45 | ≥15 | M+C+P | |||
| M- Martensite | C – Carbide | A-Austenite | P-Pearlite | |||
Hōʻike huahana
| Nui | Hole Dia.（mm） Liner Length（mm） | |||
| ≤40 | ≥40 | ≤250 | ≥250 | |
| Hoʻomanawanui | +20 | +30 | +2 | +3 |
Cr-Mo Alloy Steel
Hoʻohana ʻo H&G Machinery i ke kila kila Cr-Mo e hoʻolei i ka liner wili pōpō. ʻO kēia mea i hoʻokumu ʻia ma ka maʻamau o Australia, (AS2074 Standard L2B, a me AS2074 Standard L2C) hāʻawi ia i ka hopena maikaʻi a me ke kūpaʻa ʻana i nā noi wili semi-autogenous āpau.
Hoʻohui Kimia
| Code | Nā ʻElemu Kemika（%） | |||||||
| C | ʻO Si | ʻO 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 |
Waiwai Kino a me Microstructure
| Code | Paʻakikī（HB） | Ak（J/cm2） | Microstructure |
| L2B | 325-375 | ≥50 | P |
| L2C | 350-400 | ≥75 | M |
| M-Martensite, C-Carbide, A-Austenite, P-Pearlite | |||
Ni-paʻa kila
He hao keʻokeʻo ʻo Ni-Hard, i hoʻohui ʻia me ka nickel a me ka chromium kūpono no ka hopena haʻahaʻa, sliding abrasion no nā noi ʻelua a maloʻo. ʻO Ni-Hard kahi mea ʻaʻahu kūʻokoʻa loa, i hoʻolei ʻia i nā ʻano a me nā ʻano kūpono no ka hoʻohana ʻana i nā kaiapuni abrasive a me nā noi.
Hoʻohui Kimia
| Inoa | C | ʻO Si | ʻO Mn | Ni | Cr | S | P | Mo | ʻoʻoleʻa |
| 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 |
Hao Hao Keokeo
Hoʻohui Kimia
| Inoa | Ka Hui Kemika(%) | |||||||
| C | ʻO Si | ʻO Mn | Cr | Mo | Cu | P | S | |
| Laina Hao Hao Keokeo | 2.0-3.3 | 0-0.8 | ≤2.0 | 12-26 | ≤3.0 | ≤1.2 | ≤0.06 | ≤0.06 |
Waiwai Kino a me Microstructure
| Inoa | HRC | Ak(J/cm2) | Microstructure |
| Laina Hao Hao Keokeo | ≥58 | ≥3.5 | M+C+A |
| M-Martensite C- Carbide A-Austenite | |||
Inā he nīnau nīnau kūikawā kāu, e ʻoluʻolu e kelepona i kā mākou ʻenekinia e lawelawe iā ʻoe!
Nick Sun [email protected]
Ka manawa hoʻouna: Iune-19-2020