Casting Mold Slide Device for Aperture Formation
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Solution Overview
Problem
Current casting molds require complex and costly mechanical postprocessing to create apertures in castings, such as kitchen sinks and shower trays, after the casting process is complete, which is time-consuming and inefficient.
Innovation Solution
A casting mold with a slide device that allows an insert part to be driven into the casting cavity during the casting process, forming the aperture and detaching after polymerization, enabling the aperture to be formed during casting and simplifying the removal of the insert part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If mechanical postprocessing is used to create apertures in castings, then the aperture can be formed after casting, but the process becomes time-consuming and costly
Solution Approach 1:
The insert part is introduced into the casting cavity during the casting process itself, before the casting is completed. This preliminary placement of the insert part allows the aperture to be formed during casting rather than requiring subsequent mechanical postprocessing, thereby improving productivity while maintaining ease of manufacture
Solution Approach 2:
The insert part serves as an intermediary object that facilitates aperture formation during the casting process. By using this intermediate element, the aperture can be created without direct mechanical intervention after casting, resolving the contradiction between ease of manufacture and production efficiency
2Productivity
If an insert part is embedded during casting, then mechanical postprocessing is reduced, but the insert part must be easily removable after polymerization
Solution Approach 1:
The insert part is made of a material with a higher thermal expansion coefficient than the casting compound. During cooling after polymerization, the insert part contracts more than the surrounding casting material, creating a gap that facilitates easy removal. This thermal expansion difference resolves the contradiction by enabling both efficient aperture formation during casting and easy removal after polymerization
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the formation of apertures during the casting process, reducing mechanical postprocessing needs, ensuring optimal filling of the cavity and easy removal of the insert part, thus improving efficiency and reducing costs.
Implementation Method 1
heat is introduced by way of a heating device, which leads to a heating of the casting compound. For this purpose, in the case of the casting mold known from EP 1 237 694 B1, a first metal layer forming the front side is provided on the first mold part and is heated by way of the heating device, such that the casting compound, which bears against said first metal layer, is inevitably also heated.
Implementation Method 2
If the casting compound is heated above the polymerization temperature, the exothermic polymerization reaction begins, the polymerization front moving successively through the casting compound to the opposite second metal layer.
Implementation Method 3
a slide device, provided on one of the mold parts, comprising a slide portion which can be driven into the casting cavity and on which a detachable insert part is or can be arranged, said insert part being able to be moved abutting against the opposite mold part and being able to be embedded into the curing casting compound
Data Source
AI summary
A casting mold for producing a casting having a front side and a rear side from a curable casting compound, including at least a first mold part shaping the front side and a second mold part shaping the rear side, the mold parts together delimiting a casting cavity. A slide device, provided on one of the mold parts, includes a slide portion that can be driven into the casting cavity and on which a detachable insert part is or can be arranged. The insert part is able to be moved abutting against the opposite mold part and is able to be embedded into the curing casting compound, and is detached from the slide portion when the latter is moved back.