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Method and device for controlling carbon content of high-nickel alloy cast iron

A technology of alloy cast iron and control method, which is applied in the direction of non-electric variable control, temperature control, control/regulation system, etc. It can solve the problems of high detection cost, poor carbon supplement control accuracy, and inaccurate control.

Active Publication Date: 2019-11-08
BINZHOU YATAI ART POWER PARTS
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  • Abstract
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Problems solved by technology

[0002] The decarburization of high-nickel alloy cast iron is difficult to control during the smelting and heat preservation process. In related technologies, the composition of the furnace liquid is generally detected at least 4 times during the smelting and heat preservation process, namely full furnace, 3 / 4 furnace, 1 / 2 For furnaces and 1 / 4 furnaces, carbon replenishment is carried out according to the composition detection results of the furnace liquid, and the composition detection and confirmation are carried out again. The detection process is time-consuming, and the detection cost is high. Inaccurate ingredient control, there is a risk of unqualified product ingredients

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  • Method and device for controlling carbon content of high-nickel alloy cast iron

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[0041] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0042] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0043] Such as figure 1 Shown, the high-nickel alloy cast iron carbon content control method according to the embodiment of the present invention comprises:

[0044] S102, determining the smelting ...

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Abstract

The invention provides a method and device for controlling the carbon content of high-nickel alloy cast iron. The method comprises the steps that the smelting temperature and heat preservation power of the high-nickel alloy cast iron are determined; the decarbonization curve of the corresponding carbon content of the high-nickel alloy cast iron is determined according to the smelting temperature and the heat preservation power; the initial carbon content value of the high-nickel alloy cast iron at a full-furnace state is determined through detection; the corresponding relation table of a corresponding carbon content supplementing value and time is determined according to a preset target carbon content value, the initial carbon content value and the decarbonization curve; and in the smelting heat preservation process of the high-nickel alloy cast iron, a carburant is added to a smelting furnace according to the corresponding relation table of the carbon content supplementing value and the time. According to the technical scheme, the continuous stability of the carbon content in the smelting heat preservation process of the high-nickel alloy cast iron is effectively guaranteed, the phenomenon that the carbon content of the high-nickel alloy cast iron is out of control is effectively reduced, and the product quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of smelting control of high-nickel alloy cast iron, in particular to a method for controlling the carbon content of high-nickel alloy cast iron and a device for controlling the carbon content of high-nickel alloy cast iron. Background technique [0002] The decarburization of high-nickel alloy cast iron is difficult to control during the smelting and heat preservation process. In related technologies, the composition of the furnace liquid is generally detected at least 4 times during the smelting and heat preservation process, namely full furnace, 3 / 4 furnace, 1 / 2 For furnaces and 1 / 4 furnaces, carbon replenishment is carried out according to the composition detection results of the furnace liquid, and the composition detection and confirmation are carried out again. The detection process is time-consuming, and the detection cost is high. Inaccurate control of ingredients has the risk of unqualified product ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C1/08G05D23/19
CPCC21C1/08G05D23/1931
Inventor 王如云
Owner BINZHOU YATAI ART POWER PARTS
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