Hāʻawi ʻo Escondida i ka hoʻomaha hoʻomaha ma waena o ka maʻi maʻi

171113_Escondida_LQ

Ua ʻōlelo ʻo BHP i ka Pōʻakolu ʻo kāna ʻoihana keleawe ʻo Escondida ma Chile, ka mea nui loa o ka honua, ua hāʻawi aku i kekahi o nā limahana i ke koho no ka hoʻomaha mua ʻana ma waena o ka maʻi maʻi coronavirus, kahi hoʻolālā i hoʻopiʻi ʻia e ka hui o ka hui ma ke ʻano he hoʻolālā e hoʻokuke aku i ka poʻe kahiko a me nā maʻi.

Ua ʻōlelo ʻo Escondida ma kahi ʻōlelo iā Reuters e hāʻawi ka hāʻawi i kahi ʻāpana "hoʻomaikaʻi" o nā pono hoʻomaha i nā limahana i hoʻokō i kāna mau "koi." Ua hōʻole ka hui e wehewehe i kēlā mau ʻōlelo.

Akā ua ʻōlelo kāna hui limahana ikaika e hoʻowalewale i ka poʻe ʻelemakule a me ka poʻe me ke kūlana olakino e hoʻomaha koke i ka manawa e pono ai ka nui o ka hana. Ua koi ʻia nā kauoha a ke aupuni e hoʻokaʻawale ʻia nā limahana nāwaliwali e pale i ko lākou olakino.

"(BHP) ke ho'āʻo nei e hoʻomaha iā ia iho i ke kaumaha o ka mālama ʻana i nā hana o ka poʻe maʻi a me ka poʻe ʻelemakule, ka mea ma mua o ...

Ua ʻōlelo ka uniona e nānā pono ʻo ia i nā hoʻolālā e hōʻoia ʻaʻole i hoʻohana ʻia lākou i mea e hoʻopau ai i nā limahana i ka wā maʻi maʻi. He 2,372 mau limahana hui ma ka lua.

ʻO ka hoʻopaʻapaʻa ma waena o BHP's Escondida a me kāna mau limahana uniona e hele mai ana i ka wā i pahū ai ka maʻi coronavirus ma waena o ka nui o ka wao nahele ʻākau o Chile. Ua hoʻopaʻa ʻia ka lāhui ʻAmelika Hema ma mua o 300,000 mau hihia o ka maʻi a ʻoi aku o 6,500 mau make.

Ua noi ʻo Mining Mining Baldo Prokurica i nā ʻoihana mining e hōʻole i ka hoʻokuʻu ʻana a pale i ke olakino o nā limahana ʻoiai e mālama ana i nā huahana.

ʻAʻole i wehewehe ʻo Escondida i ka helu o nā limahana āna i manaʻo ai e lawe i ke koho hoʻomaha.

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（%）
Inoa	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）
Nui	≤40	≥40	≤250	≥250
Hoʻomanawanui	+2 0	+3 0	+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（%）
Inoa	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）
Nui	≤40	≥40	≤250	≥250
Hoʻomanawanui	+2 0	+3 0	+2	+3

Cr-Mo Alloy Steel

Hoʻohana ʻo Qiming Machinery i ke kila kila Cr-Mo e hoʻolei i ka liner wili pōlele. 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（%）
Code	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

Paipai ʻia ka liner hao keʻokeʻo e hoʻohana ma ke kūlana hana haʻahaʻa e like me:

1. Belt conveyor liner no ka ʻoihana Mining.

2. Hale wili poepoe laau sima.

3. Hale wili poepoe hana kemika.

Hoʻohui Kimia

Inoa	Ka Hui Kemika(%)
Inoa	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

@Nick Sun [email protected]

Ka manawa hoʻouna: Jul-10-2020