Mold Cooling Structure With Air Escape for Uniform Workpiece Quenching
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Solution Overview
Problem
Existing mold technologies fail to uniformly cool heated workpieces due to air retention, leading to hardness differences and incomplete cooling.
Innovation Solution
A mold design with a recess in the lower mold and a protrusion in the upper mold, featuring coolant supply and air escape passages, ensures the workpiece is fully immersed in coolant, minimizing air contact and facilitating uniform cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling medium is stored in a space where the pressed molded article is placed, then the molded article can be cooled, but air remains in the space and contacts the molded article causing non-uniform cooling
Solution Approach 1:
The invention extracts the harmful air from the cooling space by providing dedicated air escape passages that allow air to be discharged from the recess during the cooling process, separating the air removal function from the cooling function
Solution Approach 2:
The invention segments the cooling space into distinct functional zones by providing separate passages for coolant supply and air escape, allowing independent optimization of cooling efficiency and air removal
2Manufacturing precision
If air remains in the recess, then the structure is simple, but the cooling medium cannot sufficiently cool portions contacted by air leading to hardness differences
Solution Approach 1:
The mold structure is segmented into distinct functional components: coolant supply passages for delivering cooling medium, air escape passages for removing air, and a recess for holding the workpiece, allowing each component to be optimized for its specific function
Solution Approach 2:
The invention introduces air escape passages as intermediary structures that facilitate the removal of air during the cooling process, acting as a mediator between the cooling system and the atmosphere to prevent air entrapment
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
The design allows for uniform cooling of workpieces by ensuring the coolant fills the recess, preventing air retention and enhancing cooling efficiency, thereby reducing hardness variations and improving cooling time.
Implementation Method 1
a recess that stores a liquid coolant that cools the workpiece
Implementation Method 2
a coolant supply passage through which the liquid coolant is supplied to the inner space of the recess
Data Source
AI summary
In a mold, at least one of a lower mold and an upper mold includes a coolant supply passage through which a liquid coolant is supplied to an inner space of a recess, and the mold includes an air escape passage through which air in the inner space of the recess is discharged upward.