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Core pack

A technology for cores and retaining elements, which is used in the field of casting molds and castings, and core groups. It can solve problems such as screw or cover leakage, and achieve the effect of gentle force introduction and uniform force introduction.

Active Publication Date: 2019-10-15
BAYERISCHE MOTOREN WERKE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that leaks often occur when using such screws or caps

Method used

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Examples

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Embodiment Construction

[0035] figure 1 A schematic perspective view of a core set is shown, comprising a core 1 and a core 2 , which form two retaining sections 11 and 12 , respectively. The retaining sections are oriented and positioned relative to one another in such a way that a setting section 20 is formed. The setting section is used to set the figure 1 Retaining elements not shown.

[0036] figure 2 In the left half of the figure, a front view of a setting section 20 is shown, which is formed from two holding sections 11 , 12 . An annular, in particular annular holding element 40 is arranged around the mounting section 20 . In the right half of the figure, which shows a side view, it can be seen how the holding element 40 surrounds the arrangement section 20 and thus fixes or presses the two cores 1 and 2 relative to each other. Depending on the configuration of the holding element 40 , in this state already a prestressing can be exerted on the two holding sections 11 and 12 or on the co...

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PUM

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Abstract

Disclosed is a core pack comprising at least two cores, the cores comprising chaplet sections that are oriented relative to one another and form a print; a chaplet is or can be placed on and / or against the print, thus allowing the cores to be secured relative to one another.

Description

technical field [0001] The invention relates to core sets, casting molds and methods for producing castings. Background technique [0002] The casting in question is, for example, the cylinder head of an internal combustion engine. Such components are produced, for example, in gravity casting and require complexly designed core sets in order to form subsequent cooling chambers or cooling ducts in the casting, whether for water or oil or the like. In order to secure the core during casting and prevent it from floating, the core must be clamped or fastened, such fastening can take place, for example, by means of metal mold slides (Kokillenschieber) on a correspondingly configured core seat of the core. However, this results in openings in the subsequent casting, which require complex reworking. Such openings are closed, for example, with screws or covers in the finished casting. But this is preceded by complex machining, including, for example, milling, tapping, etc. The p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/10B22C9/24
CPCB22C9/103B22C9/108B22C9/24
Inventor M·胡贝尔T·祖默
Owner BAYERISCHE MOTOREN WERKE AG
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