Ceramic Insulating Die Plate for Force Transfer and Heat Isolation
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Solution Overview
Problem
Existing forging presses face challenges in achieving effective insulation while maintaining efficient force transmission, as ceramic materials used for insulation have different mechanical properties compared to metallic materials, leading to potential damage under high forming forces.
Innovation Solution
The use of an insulating layer comprising ceramic insulating bodies arranged in a specific configuration with spaced-apart, angular or anisotropic shapes, allowing for a surface portion of at least 50% of the insulating bodies in the total area, with intermediate spaces for thermal expansion and force distribution, ensuring uniform stress distribution and improved insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If ceramic insulating bodies are used to insulate the cold die part from the hot die part, then heat insulation is improved, but the ability to transmit high pressing forces is worsened due to the brittle nature of ceramic materials
Solution Approach 1:
The insulating layer is segmented into multiple individual ceramic insulating bodies arranged in parallel, rather than using a single solid insulating block. This segmentation allows the pressing forces to be distributed across multiple separate ceramic elements, reducing the stress concentration on any single body and preventing catastrophic failure while maintaining thermal insulation effectiveness.
2Force
If the surface area of insulating bodies in the insulating layer is increased to improve force distribution, then force transmission is improved, but the insulation effectiveness is worsened due to increased intermediate spaces
Solution Approach 1:
The insulating bodies are given specific geometric shapes (such as angular or anisotropic shapes) that optimize both force distribution and thermal insulation locally. The shapes are designed so that the contact surfaces with the die parts are sufficiently large for force distribution, while the overall configuration maintains adequate insulation between the hot and cold die parts despite the presence of intermediate spaces.
3Reliability
If expensive heat-resistant materials are used for the entire die, then temperature resistance is improved, but manufacturing cost is worsened
Solution Approach 1:
Instead of manufacturing the entire die from expensive heat-resistant materials, the invention applies heat-resistant ceramic insulating bodies only in the specific locations where thermal insulation is needed (in the insulating layer between hot and cold die parts). The rest of the die structure can be made from more economical materials, significantly reducing manufacturing costs while maintaining the necessary temperature resistance at critical locations.
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
This configuration provides optimal insulation and force transmission, extending the service life of insulating bodies by distributing forces uniformly and minimizing thermal stress, enabling high-temperature isothermal forging processes.
Implementation Method 1
an insulating layer arranged perpendicular to the pressing direction, wherein the insulating layer is respectively arranged between the cold die part and the hot die part
Implementation Method 2
intermediate spaces are arranged on the insulating body plane between the insulating bodies
Data Source
AI summary
An insulating die plate includes two parallel end plates and an insulating layer arranged therebetween which includes ceramic insulating bodies. An insulating body plane parallel to the end plates is defined for the insulating layer. Intermediate spaces are arranged on the insulating body plane between the insulating bodies. A total insulating layer area includes at least surface insulating body portions and surface intermediate space portions. In each section through the insulating bodies parallel to the insulating body plane, an insulating body surface portion in the total insulating layer area is at least 50%, the insulating bodies are symmetrically formed, with the top side equal to the bottom side of the insulating body and each insulating body designed as a plate having a height and a maximum width at least 2.5 times wider than the height of the insulating body; and/or the insulating bodies are anisotropically shaped.