graphite refractory
Jul 27, 2022
Refractory graphite products
(1) Refractory graphite electrodes
It is mainly made of petroleum coke and needle coke as raw materials and coal tar pitch as binder. It is made by calcining, batching, kneading, pressing, roasting, graphitization and machining. Conductors that are heated and melted can be divided into ordinary power, high power and ultra-high power according to their quality indicators. Refractory graphite electrodes include:
(1) Common power Refractory graphite electrodes. Refractory graphite electrodes with a current density lower than 17A/cm2 are allowed to be used, which are mainly used in ordinary power electric furnaces such as steelmaking, siliconmaking, and yellow phosphorus smelting.
(2) Anti-oxidation coated Refractory graphite electrode. The surface of the Refractory graphite electrode is coated with an anti-oxidation protective layer to form a protective layer that is both conductive and resistant to high temperature oxidation, reducing electrode consumption during steelmaking.
(3) High-power Refractory graphite electrodes. It is allowed to use Refractory graphite electrodes with a current density of 18-25A/cm2, mainly used in high-power electric arc furnaces for steelmaking.
(4) Ultra-high power Refractory graphite electrodes. Refractory graphite electrodes with current densities greater than 25A/cm2 are allowed. Mainly used for ultra-high power steelmaking electric arc furnace.
(2) Refractory graphite anodes
It is mainly made of petroleum coke as raw material and coal tar pitch as binder. It is generally used as a conductive anode for electrolysis equipment in the electrochemical industry. include:
(1) Various chemical anode plates.
(2) Various anode rods.
(3) Special Refractory graphite
Mainly using high-quality petroleum coke as raw material, coal tar or synthetic resin as binder, through raw material preparation, batching, kneading, tableting, pulverization, re-kneading, molding, multiple roasting, multiple impregnation, purification and graphitization, Machined. Generally used in aerospace, electronics and nuclear industries.
It includes spectrally pure Refractory graphite, high-purity, high-strength, high-density and pyrolytic Refractory graphite.
(4) Refractory graphite heat exchanger
The artificial Refractory graphite is processed into the required shape, and then impregnated and cured with resin to make impermeable Refractory graphite products for heat exchange. Used in the chemical industry. include:
(1) Block hole heat exchanger;
(2) Radial heat exchanger;
(3) Falling film heat exchanger;
(4) Tube heat exchanger.
(5) Carbon electrodes
Conductive electrodes are made of carbonaceous materials such as anthracite and metallurgical coke (or petroleum coke) as raw materials, and coal tar as binder, without graphitization, and are fired by pressing. It is not suitable for electric furnaces for melting high-grade alloy steels. include:
(l) Multi-ash electrodes (electrodes produced from anthracite, metallurgical coke, pitch coke);
(2) Regenerating electrodes (electrodes produced with artificial Refractory graphite and natural Refractory graphite);
(3) Carbon resistance rods (ie, carbon lattice bricks);
(4) Carbon anode (prebaked anode produced from petroleum coke);
(5) Baking the electrode blank.
(6) Carbon block
Anthracite and metallurgical coke are used as the main raw materials, and coal tar pitch is used as the binder. Among them, the blast furnace carbon block is used as a high temperature and corrosion resistant material for the lining of the blast furnace; the bottom carbon block, the side carbon block and the electric furnace block are used for aluminum electrolytic cells and ferroalloy electric furnaces. include:
(1) Blast furnace carbon block;
(2) Aluminum groove carbon block (bottom carbon block and side carbon block);
(3) Electric furnace carbon block.
(7) Charcoal paste
It is made of petroleum coke, anthracite and metallurgical coke as the main raw materials, and coal tar pitch as the binder. Some are used as electrode pastes for various continuous self-baking electric furnaces as conductive electrodes; some are used as anode pastes for continuous self-baking aluminum tanks as conductive anodes; some are used as fillers for blast furnace masonry and coarse refractory mud. Stitches and stitches. Although the use of self-baking carbon blocks for blast furnaces is different, the production process of self-baking carbon blocks is similar to that of paste products, and it is temporarily classified into paste products. include:
(1) Anode paste;
(2) Electrode paste (including standard and non-standard electrode paste);
(3) Base paste (including more ash and less ash base paste);
(4) Airtight paste (including more ash, less ash airtight paste);
(5) Other pastes (including rough seam paste, fine seam paste, self-baking carbon bricks, etc.).
(8) Non-standard carbon and Refractory graphite products
This refers to various special-shaped carbon and Refractory graphite products transformed from carbon and Refractory graphite products after further processing. Including shovel anodes, fluorine anodes and crucibles, plates, rods, blocks and other special-shaped products of various specifications.
(1) Refractory graphite electrodes
It is mainly made of petroleum coke and needle coke as raw materials and coal tar pitch as binder. It is made by calcining, batching, kneading, pressing, roasting, graphitization and machining. Conductors that are heated and melted can be divided into ordinary power, high power and ultra-high power according to their quality indicators. Refractory graphite electrodes include:
(1) Common power Refractory graphite electrodes. Refractory graphite electrodes with a current density lower than 17A/cm2 are allowed to be used, which are mainly used in ordinary power electric furnaces such as steelmaking, siliconmaking, and yellow phosphorus smelting.
(2) Anti-oxidation coated Refractory graphite electrode. The surface of the Refractory graphite electrode is coated with an anti-oxidation protective layer to form a protective layer that is both conductive and resistant to high temperature oxidation, reducing electrode consumption during steelmaking.
(3) High-power Refractory graphite electrodes. It is allowed to use Refractory graphite electrodes with a current density of 18-25A/cm2, mainly used in high-power electric arc furnaces for steelmaking.
(4) Ultra-high power Refractory graphite electrodes. Refractory graphite electrodes with current densities greater than 25A/cm2 are allowed. Mainly used for ultra-high power steelmaking electric arc furnace.
(2) Refractory graphite anodes
It is mainly made of petroleum coke as raw material and coal tar pitch as binder. It is generally used as a conductive anode for electrolysis equipment in the electrochemical industry. include:
(1) Various chemical anode plates.
(2) Various anode rods.
(3) Special Refractory graphite
Mainly using high-quality petroleum coke as raw material, coal tar or synthetic resin as binder, through raw material preparation, batching, kneading, tableting, pulverization, re-kneading, molding, multiple roasting, multiple impregnation, purification and graphitization, Machined. Generally used in aerospace, electronics and nuclear industries.
It includes spectrally pure Refractory graphite, high-purity, high-strength, high-density and pyrolytic Refractory graphite.
(4) Refractory graphite heat exchanger
The artificial Refractory graphite is processed into the required shape, and then impregnated and cured with resin to make impermeable Refractory graphite products for heat exchange. Used in the chemical industry. include:
(1) Block hole heat exchanger;
(2) Radial heat exchanger;
(3) Falling film heat exchanger;
(4) Tube heat exchanger.
(5) Carbon electrodes
Conductive electrodes are made of carbonaceous materials such as anthracite and metallurgical coke (or petroleum coke) as raw materials, and coal tar as binder, without graphitization, and are fired by pressing. It is not suitable for electric furnaces for melting high-grade alloy steels. include:
(l) Multi-ash electrodes (electrodes produced from anthracite, metallurgical coke, pitch coke);
(2) Regenerating electrodes (electrodes produced with artificial Refractory graphite and natural Refractory graphite);
(3) Carbon resistance rods (ie, carbon lattice bricks);
(4) Carbon anode (prebaked anode produced from petroleum coke);
(5) Baking the electrode blank.
(6) Carbon block
Anthracite and metallurgical coke are used as the main raw materials, and coal tar pitch is used as the binder. Among them, the blast furnace carbon block is used as a high temperature and corrosion resistant material for the lining of the blast furnace; the bottom carbon block, the side carbon block and the electric furnace block are used for aluminum electrolytic cells and ferroalloy electric furnaces. include:
(1) Blast furnace carbon block;
(2) Aluminum groove carbon block (bottom carbon block and side carbon block);
(3) Electric furnace carbon block.
(7) Charcoal paste
It is made of petroleum coke, anthracite and metallurgical coke as the main raw materials, and coal tar pitch as the binder. Some are used as electrode pastes for various continuous self-baking electric furnaces as conductive electrodes; some are used as anode pastes for continuous self-baking aluminum tanks as conductive anodes; some are used as fillers for blast furnace masonry and coarse refractory mud. Stitches and stitches. Although the use of self-baking carbon blocks for blast furnaces is different, the production process of self-baking carbon blocks is similar to that of paste products, and it is temporarily classified into paste products. include:
(1) Anode paste;
(2) Electrode paste (including standard and non-standard electrode paste);
(3) Base paste (including more ash and less ash base paste);
(4) Airtight paste (including more ash, less ash airtight paste);
(5) Other pastes (including rough seam paste, fine seam paste, self-baking carbon bricks, etc.).
(8) Non-standard carbon and Refractory graphite products
This refers to various special-shaped carbon and Refractory graphite products transformed from carbon and Refractory graphite products after further processing. Including shovel anodes, fluorine anodes and crucibles, plates, rods, blocks and other special-shaped products of various specifications.
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