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  •   Copper and Copper Products
    Answer:

    ① morphological classification exists by nature
    ------ Natural copper free state of existence in nature of copper and copper content of 99%, but the reserves are very small;
    Number of copper oxide is not more than -----
    ----- Copper sulfide copper content is very low, usually in 2 - 3% of more than 80% of the world's copper is refined from

    sulphide copper out.
    ② Classification by production process
    Elected before the smelting of copper concentrate ---- high copper content of ore.
    ------ Blister copper smelting copper concentrates, the products, copper content in the 95-98%.
    Electrolytic copper ------ fiery or more than 99% after the content of copper. Fiery available 99-99.9% of pure copper,

    electrolytic copper can 99.95-99.99% purity.
    ③ Classification by major alloy components
    Copper, copper products -----
    Brass, copper and zinc alloy -----
    Copper tin alloy bronze ----- (in addition to zinc and nickel, the alloy by adding other elements are called bronze)
    Copper-nickel alloy of Copper, Cobalt, Nickel alloy -----
    ④ patterns by product category: brass, copper, copper wire, copper, copper, brass, copper, etc.

  •   The main factor affecting copper prices
    Answer:

    Factors affecting the price of copper
    a. the international economic situation. Commodity markets and the economic situation of the relevant point is obvious,

    especially in today's increasingly globalized world economy, commodity markets and the economy have more relevance, so the

    price of copper is closely related with the economic situation. Copper consumption concentrated in the developed industrial

    countries, these countries such as USA, Japan, Western Europe, economic conditions in countries such as greater impact on

    copper prices, in general, the economic situation, increased demand for copper, the price rise, and vice versa down.

    b. producing countries, production status. Chile is the most abundant copper resources and the world's largest exporter of

    copper, Zambia and Zaire in Central Africa is an important copper producer in the country, almost all the copper they produce

    for export, production status of their great influence on the international copper market . The situation in these three

    countries has been very stable government, labor disputes are often made, it is also a direct impact on copper prices.
    c. seasonal effects. Seasonal fluctuations in copper prices more apparent in January each year for the nadir in August record

    high.
    d. the impact of industrial policy. Because copper is mainly used in electrical, electronics, construction, machinery and

    transport, the country's industrial policy for these sectors have a more significant impact on copper prices.
    e. the price of substitutes. In the telecommunications industry, copper has been an important 原料, but optical fiber Jishu

    the popularization and application, the status of copper challenge the same time, aluminum and other metal materials and Tong

    has the same properties, mostly used in place of the copper sector, a .
    f. the impact of inventory. Inventory is one of the important factors affecting copper. Enterprises in different market

    conditions will take different measures to increase or decrease in inventory. To ensure the production of raw materials or to

    speed up cash flow, will be used at different times throughput reserves to stabilize the copper market.
    g. other policies, laws and regulations of. As the copper market is an international market, international trade is big, so

    an increase in the country's import and export policies, exchange rate system, anti-smuggling efforts and other factors

    change, will have an impact on copper prices.

  •   The world's major copper smelters
    Answer:

    Africa
    Congo Luyi Lu (Kolwezi) Luilu (Kolwesi) 85
    Xi Tulu Shituru 50
    Namibia, Tsumeb smelter in Tsumeb Smelter 60
    South Africa nababiep smelter (ookiep) Nababeep Smelter (O'okiep) 50
    Palabora smelter Palaborna Smelter 135
    Zambia and Ballybay Luanshya & Baliba 60
    Mufulira Mufulira 180
    Nchanga TLP Nchanga TLP 70
    Nkana (rhokana) Nkana (Rhokana) 240
    Asia
    China, silver (Kanagawa) / Gansu Baiyin (Jinchuan) Gansu 75
    Daye Daye 80
    Guixi Guxi 150
    Huludao Huludao 60
    Kim Chang Jinchang 100
    Shanghai Shanghai 110
    Tianjin Tianjin 60
    Yunnan Yunnan 100
    India birla copper (on behalf of the Hay) Birla Copper (Dahei) 70
    Tuticorin Tuticorin 75
     Shimei Sar Chesmeh 160
    Japan's other son / Ehime (East to the smelter) Besshi / Ehime (Toyo Smelter) 300
    Kosaka (Akita) Kosaka (Akita) 96
    Straight Island (Kagawa) Naoshima (Kagawa) 270
    Onahama (Fukushima) Onahama (Fukushima) 264
    Saganoseki (Oita) Saganoseki (Oita) 350
    Tamano (Okayama) Tamano (Okayama) 262.8
    Kazakhstan Balcas Meath Balkashmys 180
    Dzhezkanzgan smelter Dzhezkazgan Smelter 215
    Onsan smelter Ⅰ Onsan Ⅰ 150
    Onsan smelter Ⅱ Onsan Ⅱ 140
    Philippines, Isabel / Leyte (Philippines Smelting and Refining Association) Isabel / Leyte (PASAR) 190
    Uzbekistan Olmaliq smelter Almalyk Smelter 140
    Europe
    Austria brixlegg Brixlegg 85
    Belgium Belser Beerse 150
    Hoboken Hoboken 50
    UM pirdop UM Pirdop 120
     Valta Harjavalta 160
    Hamburg, Germany, Hamburg 420
    Black Te Shitai Hettstedt 72.2
    Luenen Lunen 170
    Italy waves on behalf of the Magra Porto Marghera 105
     Ⅰ Glogow Ⅰ 220
    Głogów Ⅱ Glogow Ⅱ 180
    Legnica smelter Legnica Smelter 85
    Romania hereby Ratner smelter Zlatna Smelter 53
    Russia's Kirov Grade (Kara) Kirovgrad (Kalata) 130
    Krasnouralsk smelter Krasnouralsk Smelter 71
    Nadezhdinskiy Nadezhdinsky 100
    Norilsk smelter in Norilsk Smelter 400
    Sredneuralsk smelter Sredneuralsk Smelter 110
    Spain Huelva Huelva 290
    Sweden pulau Ronnskar 140
    British Walsall Walsall 55
    Yugoslavia Bor Bor 170
    North America
    Canada Flin Flon Flin Flon 87
    Gaspe smelter Gaspe Smelter 110
    Horne smelter Horne Smelter 200
    Kidd Creek Kidd Creek 125
    Sudbury (Copper Cliff) Sudbury (Copper Cliff) 135
    Mexico  / Sonora Cananea / Sonora 56
    La caridad La Caridad 300
    Alton Alton 135 U.S.
    Carrollton Carrollton 140
    El Paso El Paso 120
    Garfield Garfield 320
    Hayden Hayden 210
    Hidalgo Hildalgo 220
    Hurley Hurley 190
    Miami Miami 180
    Shengmanniuer San Manuel 340
    Sawgate Sauget 60
    Oceania
    Australia's Mount Isa Mount Isa 190
    Olympic Dam Olympic Dam 84
    South America
     in Camacari 185
    Chi  mention (la negra) Altonorte (La Negra) 170
    Charles Grace  Chagres (Disputada) 125
    Chuquicamata Chuquicamata 470
    El teniente  El Teniente (Caletones) 390
    Aiernanwei on behalf of the La Lila (send Porter) Hernan Videla Lira (Paipote) 90
    Las Ventanas Las Ventanas 125
    El Salvador (potrerillos) Salvador (Potrerillos) 150
    Peru smelter in Ilo Smelter 300 Lu Yiluo
    La Oroya smelter in La Oroya Smelter 70
  •   Which the conductivity of copper, thermal conductivity better?
    Answer:

    Copper thermal conductivity 386.4w / (mk) resistivity (20 ℃ pm) to 0.018Ω · mm2 / m
    Brass thermal conductivity coefficient of 108.9 / (mk) resistivity (20 ℃ pm) to 0.071Ω · mm2 / m
    Beryllium copper thermal conductivity 195w / (mk) high yield point, tensile strength and elastic good, but lower than the

    conductivity of copper
    Considering copper to be elected

  •   Electrolytic copper is used for DC or AC power?
    Answer:
    DC power is used for electrolytic copper, is the use of the AC rectifier into a DC rectifier to use.
    Copper electrolysis process: the pre-formed blister copper plate as anode, made of sheet copper as the cathode, with sulfuric acid (H2SO4) and copper sulfate (CuSO4) solution as the electrolyte. Power after the dissolution of copper from the anode to the ionic state (Cu2 +) move to the cathode, the electrons reach the cathode, was precipitated in high purity copper cathode - copper.

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