Casting piece production method and mould for preventing cold iron setting errors

Abstract

The invention discloses a casting piece production method for preventing cold iron setting errors. The casting piece production method comprises the following steps: according to a preset cold-iron three-dimensional process with different dimensions and position distributions, processing a cold iron contour line on the mould, processing cold iron information in a surrounding area of the cold iron contour line of the mould, and forming a magnet assembly hole in the surrounding area of the cold iron contour line on the mould; arranging a magnet in the magnet assembly hole in the mould; in modeling and core-making processes, setting corresponding cold iron according to the cold iron contour line on the mould and the cold iron information, and positioning the set cold iron by the magnet in the magnet assembly hole; after lifting a mould / the core, judging whether the cold iron is set wrongly according to the cold iron contour line of the mould as well as cold iron contour line impressions and cold iron information impressions of the cold iron information, on a mould core semi-finished product working surface; and after judging that the cold iron is set correctly, assembling the mould and casting to obtain the corresponding casting piece. The invention further provides a mould for preventing the cold iron setting errors.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a casting production method and a mold for preventing chill iron from being set incorrectly. Background technique [0002] In casting production, it is often necessary to use chilled iron to quench the parts that need accelerated cooling, so that parts of different thicknesses in the casting are solidified sequentially or simultaneously, so as to obtain castings that are dense inside and meet the UT flaw detection level. For example, general nodular cast iron requires 8-40% of the casting weight of chill iron, that is, dozens to thousands of chill irons of different types are needed to realize the sequential solidification or simultaneous solidification of castings, so how to ensure the position and quantity of chill iron And the correct model setting is an important factor to ensure the quality of cast iron. [0003] In the prior art, the setting method for the cold iron is as ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the setting method for the cold iron is as follows: generally, marking lines, colors and other cold iron marks are drawn on the molds such as the pattern and the core box to indicate the position and quantity of the cold iron. According to the marking line on the mould, the color is tight to the molding sand, and the cold iron is placed piece by piece, this method has the following problems: it is easy to make the cold iron move, or even miss or misplace the cold iron. It is not easy to find the wrong setting of the cold iron, resulting in local shrinkage and shrinkage inside the casting, which cannot meet the UT flaw detection level and is scrapped

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