A method for preparing iron castings with cast-in steel pipes

A technology for casting steel pipes and iron castings, applied in the direction of manufacturing tools, molds, mold components, etc., can solve the problems of poor production quality, difficult operation, and high risk factors, and achieve easy operation, high safety factor, and improved quality. Effect

Active Publication Date: 2021-09-21
本溪钢铁(集团)机械制造有限责任公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the present invention provides a method for preparing iron castings with cast-in steel pipes, to at least solve the problems of high risk factor, poor production quality and difficult operation in the previous water cooling method

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  • A method for preparing iron castings with cast-in steel pipes
  • A method for preparing iron castings with cast-in steel pipes
  • A method for preparing iron castings with cast-in steel pipes

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Embodiment Construction

[0026] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0027] In order to solve the problems of high risk factor, poor production quality and difficult operation due to poor control of water pressure and flow rate and easy occurrence of water leakage when water cooling method was used to prepare iron castings cast into steel pipes, this implementation The scheme provides a method for preparing iron castings with cast-in steel pipes, the method compr...

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Abstract

The invention discloses a method for preparing iron castings with cast-in steel pipes. The method mainly utilizes the characteristic that nitrogen does not react with iron to realize the anti-oxidation purpose of cast-in steel pipes. Specifically, after the air cast into the steel pipe is completely replaced by nitrogen, the molten iron is cast, and at the same time of casting, nitrogen is continuously introduced. A large amount of heat is used to accelerate the solidification of molten iron wrapped around the outer wall of the cast steel pipe, thereby increasing the strength of the cast steel pipe at high temperature and improving the quality of the product. This preparation method has the advantages of easy operation and high safety factor.

Description

technical field [0001] The disclosure of the invention relates to the technical field of iron casting preparation, in particular to a method for preparing iron castings with cast-in steel pipes. Background technique [0002] When iron castings are used in environments such as high-temperature baking and high-temperature flow impact, in order to prevent the castings from being damaged after being heated and the parts connected to them from being damaged after being heated, it is necessary to cast a structure for cooling the iron castings in order to Cooling of cast iron parts. The usual method is to cast steel pipes in the iron castings, and after casting the steel pipes, connect the cast steel pipes to an external closed (water) circulation heat dissipation system, and then take away the heat introduced into the iron castings. [0003] At present, in the preparation process of iron castings cast into steel pipes, due to the baking and wrapping of high-temperature molten iro...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/02B22C9/24B22D27/04
CPCB22C9/02B22C9/24B22D27/003B22D27/04
Inventor 邓守梁万黎明杨海俊时均伟孙波
Owner 本溪钢铁(集团)机械制造有限责任公司
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