Nkwekọrịta ndị na-egwupụta akụ nke China na-agbaji ka ọ na-akwụsị n'ihe mgbochi usoro iwu

Nnyocha na-eto eto site na Australia na Canada bara ọgaranya nwere ike ibelata nkwekọrịta nkwekọrịta nke ndị na-egwupụta akụ steeti China na-eduga ma gbochie ọrụ Beijing na nkwado mpaghara ọla edo, ndị ọrụ ụlọ akụ na ndị nyocha kwuru.

Shandong Gold na Zijin Mining eburula ọtụtụ ihe azụta site na Arctic Canada ruo South America ruo West Africa n'afọ a.

Canada na Australia emechiela mmachi na ntinye ego nke ụlọ ọrụ steeti na-akwado, na-atụ egwu ndakpọ akụ na ụba nke ọrịa coronavirus kpatara ga-eme ka ọ dịkwuo mfe ịzụta akụ dị mkpa. Onweghi obodo akpọpụtara aha n'okpuru ntuziaka ndị edegharịrị.

Ntụle ụlọ ọrụ China maka ụlọ ọrụ lithium Australia na-eche ihu nkwụghachi iwu mgbe ọnwa gara aga, China's Goldsea Group hapụrụ nchụso nke onye na-egwupụta ọla edo Alta Metals mgbe Australia's Foreign Investment Review Board (FIRB) chọkwuru oge iji nyochaa nkwekọrịta ahụ.

Mkpebi FIRB bụ “ihe na-akụda mmụọ nke ukwuu,” Graeme Testar, onye isi PCF Capital Group na Perth, gwara Reuters. "Nke a bụ ọla edo, ọ bụghị na ndepụta mineral dị oke mkpa."

Ụlọ ọrụ ahụ kwuru na n'ọnwa gara aga ọ ga-enyocha azụmahịa niile nke onye na-etinye ego na mba ọzọ na-azụta mmasị na "azụmahịa nchekwa mba nke nwere mmetụta" n'agbanyeghị uru ọ bara. N'April, ọ gbochiri itinye ego abụọ nke ndị na-egwuputa ihe na China na mpaghara mineral dị oke mkpa, dị ka lithium na cobalt eji na mpaghara teknụzụ dị elu dị ka ume ọhụrụ, batrị ụgbọ ala eletrik, na nchekwa.

“Usoro itinye ego na mba ofesi Australia mepere emepe, doo anya na nnabata. Anyị na-anabata itinye ego site na obodo ọ bụla na mpaghara akụ na ụba ọ bụla, "Onye na-ekwuchitere Ngalaba Akụ Australia kwuru.

Ihe mgbochi

Ụfọdụ ndị ọrụ ụlọ akụ na-enwe nchegbu na FIRB nwere ike igbochi Tianqi Lithium nke China ire akụkụ nke 51% ya na Greenbushes Australia, ogbunigwe lithium kasị ukwuu n'ụwa, nye onye zụrụ China.

"(Ndị na-azụ ahịa China) na-aga n'ihu na-egosi mmasị ma dị njikere ihu nsogbu FIRB na-arịwanye elu," Sherif Andrawes, onye isi BDO zuru ụwa ọnụ nke Natural Resources kwuru, na-ekwu maka mpaghara ahụ n'ozuzu ya.

O kwuru, sị: "Otu echiche bụ na nnukwu nsogbu nke ndị na-azụ ahịa si mba ọzọ enyerela ndị na-azụ ahịa Australia aka.

Canada zoro aka n'ihe egwu dị ukwuu na nchekwa akụ na ụba na nke mba wee kwuo na itinye ego niile nke ụlọ ọrụ gọọmentị nwere ga-eche nyocha nke ọma. Ngalaba Innovation, Science and Economic Development Canada, nke na-ahụ maka itinye ego na mba ofesi, jụrụ ikwu okwu gafere amụma gọọmentị kwuru mgbe Reuters kpọtụrụ ya.

Ndị na-egwupụta akụ nke China na-achọgharị maka azụmahịa n'ihi oke na nyocha ụlọ, David Bo, onye bụbu onye njikwa na Ivanhoe Mines, kwuru.

Ihe dị ka 60% nke Njikọ Xilingol bara ụba nke akụ na mpaghara Mongolia Inner nke China bụ ndị na-egwuputa ihe n'ihi usoro nchekwa gburugburu ebe obibi, na-agbakwunye mkpali ọzọ maka ndị na-egwupụta akụ China ime azụmahịa, onye isi na-egwupụta akụ na Beijing gwara Reuters. Onye isi ụlọ ọrụ ahụ jụrụ ka a mata ya n'ihi na ụlọ ọrụ ya nọ na-achọ ị nweta akụ na mba ofesi.

Shandong Gold na-eche nkwado maka nnweta TMAC Resources nke edepụtara na Toronto, nke na-arụ ọrụ ogbunigwe ọla edo na mpaghara Arctic nke Canada nke Nunavut. Ndị nwe oke TMAC kwadoro nkwekọrịta ahụ n'ọnwa gara aga.

"Ọ ka bụ olile anya anyị na Canada ga-enye ụlọ ọrụ China ebe dị mma, nke ziri ezi na enweghị ịkpa ókè maka itinye ego na ịrụ ọrụ na Canada," onye nnọchi anya China na Canada Cong Peiwu gwara Reuters na N'ajụjụ ọnụ June 11.

Mana ebe Arctic nke m TMAC's Hope Bay nwere ike iwelite nchegbu, ndị ọka iwu na ndị nyocha nchekwa kwuru.

Enwere "ohere dị oke elu" Canada gbochiri nnweta ahụ, Jonathan Miller, osote onye isi na onye otu ibe na Macdonald-Laurier Institute nke Ottawa kwuru.

Esemokwu sitere na njide nke Huawei Teknụzụ CFO, Meng Wanzhou, bilitere mgbe Beijing na June boro ụmụ amaala Canada abụọ ejidere ebubo na ha na-enyo enyo.

"Site n'echiche ahụ, echere m na ọ ga-abụ ihe ịma aka," Miller kwuru.

30CrNiMoRe Alloy Steel Maka nkedo Shredder Hammers

Onye ahịa anyị Finland jiri hama manganese steel shredder gwepịa ihe eji emegharị igwe. Otú ọ dị, hamma manganese nwere ike ịgba ihe dị ka awa 150. Site na nyocha nke hama ejiri mee ihe, ike nke elu eji eme ihe bụ naanị HB186-222. Naanị mkpụrụ osisi ole na ole ka ahụrụ na-adaba n'elu ihe eji eme ihe, na ọtụtụ n'ime ha kwekọrọ na nhazi nke matriks. Yabụ injinia anyị tụrụ aro 30CrNiMo alloy steel ka hama shredder ahụ.

Ihe mejupụtara 30CrNiMo Chemical

Nickel na-eme ka ike siri ike na ịdị ike nke ígwè arụpụtara. Mgbe a na-ejikọta nickel na chromium ọnụ, ike siri ike na-esiwanye ike, karịa mgbe agbakwunyere ihe abụọ ahụ naanị. Agbanyeghị, nchara Cr Ni na-enwe mmetụta maka mgbaka ọkụ, nke enwere ike imeri site na ịgbakwunye platinum. Ịgbakwunye ụfọdụ ego nke ụwa na-adịghị ahụkebe na ihe nkedo alloy nwere ike ime ka nhazi nke ígwè dị ọcha, mee ka oke ọka dị ọcha, meziwanye ihe ndị ahụ, ka ọ dịkwuo mma mmetụta siri ike na nkedo nke ígwè. N'iji ya na nchara ndị ọzọ, Cr Ni Pt re steel bụ ụdị ihe eji eme ihe na-adịghị mma nke nwere ike siri ike, ike dị elu, na ihe siri ike. E gosipụtara ihe mejupụtara kemịkalụ akọwapụtara na tebụl 1.

Mepụta nhazi

Na-agbaze: a na-eji usoro oxidation na 5T EAF. Oxidation okpomọkụ ≥ 1550 decarburization ego ≥ 0.30%. Ọnụego decarburization erughị 0.01% / min. Tupu ịpịa, a na-etinye aluminom 1.0kg / t, a na-agbakwunye alloy yana nchara nchara. Ịkpụzi: ájá resin maka isi ájá, 8 iberibe kwa igbe. Ịrụ ọrụ nkedo nke ígwè a yiri nke ọkara carbon ígwè. Iji meziwanye njupụta nkedo nke akụkụ ọrụ nke hama shredder, a na-etinye ihe nrịgo n'isi.

The okpomọkụ ọgwụgwọ usoro bụ 900-920 ℃ mmiri quenching, na tempering na 200 ℃.

Nsonaazụ

Mgbe emechara ngwaahịa a, anyị zigara ndị ahịa anyị ihe abụọ tent. Dabere na nzaghachi ndị ahịa, alloy steel shredder hama ogologo ndụ nwere ike ịbụ ugboro 2-2.5 karịa hama ígwè manganese nkịtị.

@Nick Sun       [email protected]