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Production technology of high-strength electrode paste

A production process and airtight paste technology, which is applied in the manufacture of circuits, electrical components, cables/conductors, etc., can solve problems such as unstable product quality, poor thermal shock resistance, and low formula precision, so as to reduce production and operation costs and improve Effect of mechanical strength and strict screening

Active Publication Date: 2016-03-09
HUNAN ZHENSHENG CARBON IND CO LTD
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  • Abstract
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Problems solved by technology

The traditional closed electrode paste has the disadvantages of high raw material cost, low formula precision, low strength after sintering, high resistivity, poor thermal shock resistance, and unstable product quality.

Method used

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  • Production technology of high-strength electrode paste

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Embodiment Construction

[0020] The production process of the present invention has strict requirements on the selection of its raw materials. After testing, the proportioning is adjusted to the following raw materials and steps to make it. The weight proportioning of each raw material is:

[0021] (1) 36 parts of anthracite, (2) 27 parts of anode butt,

[0022] (3) 18 parts of metallurgical coke, (4) 6 parts of artificial graphite,

[0023] (5) 20 parts of coal tar pitch;

[0024] The steps are:

[0025] A. Selection of raw materials: The above-mentioned raw materials (1) to (5) are selected to make their characteristic indicators meet the following requirements: the anthracite after fine washing is calcined in an electric calciner at 2000 ℃, so that the ash content is ≤6 %, volatile matter 2 / m, true density ≥ 1.90g / cm3,

[0026] The residual anodes are first cleaned of surface impurities, and the soft residual anodes are selected for crushing.

[0027] The physical and chemical indicators of me...

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Abstract

The invention provides a production technology of high-strength electrode enclosing paste. The high-strength electrode enclosing paste is made of the following raw materials, by weight ratio: 35-40 parts of anthracite, 25-30 parts of anode remnants, 25-20 parts of metallurgical coke, 5-10 parts of synthetic graphite, and 18-23 parts of coal tar pitch; and the high-strength electrode enclosing paste is prepared by the following steps of careful choosing according to the weight ratios, milling and screening, mixing and stirring, and molding and cooling. The production technology of the high-strength electrode enclosing paste solves the problems in the production technology of conventional electrode enclosing paste that the selection of raw materials is not rigorous, environment pollution is caused, the mechanical strength of the product is poor, and the resistivity is high; in addition, the technology process is simplified, the production and operation cost is lowered, the practicality is high, and the production technology can be applied to conductive materials of self-baking electrodes such as a calcium carbide furnace, ferroalloy furnace and a ferrosilicon furnace.

Description

technical field [0001] The invention relates to a production process of an electrode sealing paste, in particular to a production process of a high-strength electrode sealing paste. Background technique [0002] In the past, the conductive materials used in self-baking electrodes such as calcium carbide furnaces, ferroalloy furnaces and ferrosilicon furnaces were collectively referred to as electrode pastes. Finally, because the submerged arc furnace has an open structure and a closed structure, therefore, the electrode paste is also divided into a closed paste, an electrode paste and a chemical electrode paste. Electrode sealing paste is a conductive material for self-baking electrodes of closed submerged thermal electric furnaces. [0003] At present, with the continuous development of my country's economic construction, the requirements for energy control and environmental impact are getting higher and higher, and the submerged heat furnaces with a capacity of less than ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00
CPCH01B13/00
Inventor 吴志平吴霄肖东辉
Owner HUNAN ZHENSHENG CARBON IND CO LTD
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