Baking plate for baking ovens
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional baking plates made of gray cast iron are prone to contamination, leading to production interruptions and inefficiencies in industrial oven operations, as they do not allow for easy removal of baked products and cleaning, and existing coatings like ceramic or plastic layers face issues with durability and dimensional accuracy.
Innovation Solution
A baking plate design featuring sintered ceramic baking inserts with a thermal expansion coefficient less than 9 × 10^-6 K^-1, made from materials like silicon nitride, securely attached to a metal carrier plate with a similar or greater thermal expansion coefficient, allowing for precise fit and easy replacement, and incorporating ventilation holes for cleaning and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional gray cast iron baking plates are used, then heat distribution is good, but contamination removal is difficult and production interruptions occur
Solution Approach 1:
The baking plate is divided into a carrier plate and separate baking inserts. The baking inserts are made of sintered ceramic material that can be easily removed and replaced when contaminated, while the carrier plate remains in place. This segmentation allows the baking surface to be regenerated without replacing the entire plate, ensuring continuous operation.
Solution Approach 2:
The invention uses a composite structure combining a metal carrier plate (gray cast iron or steel) with sintered ceramic baking inserts. The ceramic material provides non-stick properties and ease of cleaning, while the metal carrier provides structural strength and heat distribution. This composite approach resolves the contradiction between durability and ease of maintenance.
2Ease of operation
If ceramic coatings are applied to metal plates, then non-stick properties improve, but dimensional accuracy and surface stability deteriorate
Solution Approach 1:
Instead of coating the entire metal plate with ceramic, the invention segments the ceramic material into separate baking inserts that are placed into recesses in the carrier plate. This allows the ceramic baking surface to be precisely manufactured with tight tolerances, while the metal carrier plate provides overall structural support. The segmentation eliminates the problem of ceramic coating dimensional instability.
Solution Approach 2:
The carrier plate acts as an intermediary between the heating system and the ceramic baking inserts. It provides a stable, precisely machined base with recesses that hold the ceramic inserts, ensuring dimensional accuracy is maintained while still achieving non-stick baking properties.
3Ease of operation
If large-area ceramic coatings are applied, then non-stick properties improve, but production complexity and repair difficulty increase
Solution Approach 1:
The ceramic baking surface is segmented into separate, removable inserts rather than a large-area coating. Each insert is a discrete component that can be independently manufactured, installed, and replaced. This segmentation dramatically simplifies production and maintenance, as individual inserts can be replaced without affecting other parts of the baking plate.
Solution Approach 2:
The baking inserts are designed to be replaceable components. When a ceramic insert becomes contaminated or damaged, it can be removed and replaced with a new insert without discarding the entire baking plate or investing in complex re-coating processes. This approach reduces production complexity and enables quick recovery of operational capacity.
4Productivity
If baking plates are designed for easy cleaning, then productivity improves, but heat distribution capability may deteriorate
Solution Approach 1:
The composite structure combines gray cast iron or steel carrier plate for heat distribution with sintered ceramic inserts for easy cleaning. The ceramic material provides smooth, non-porous surfaces that prevent contamination adhesion and enable quick cleaning, while the metal carrier ensures uniform heat distribution across the baking surface. This composite approach resolves the contradiction between cleaning ease and heat distribution.
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
Ensures easy and safe removal of baked products, effective cleaning, and allows for quick retrofitting or repair of baking plates, while maintaining even heat distribution and product precision, thus enhancing operational efficiency and reducing downtime.
Implementation Method 1
the baking inserts are made of sintered ceramic... whose thermal expansion is equal to or greater than the thermal expansion of the baking inserts
Implementation Method 2
a carrier plate and one or more baking inserts arranged on it... whose thermal expansion is equal to or greater than the thermal expansion of the baking inserts
Data Source
Figure 1
Figure 2
Figure 3~5
AI summary
The invention relates to a baking plate for baking ovens for producing baked goods, such as soft waffles, crisp waffles, pancakes, and the like, characterized in that the baking plate (9, 10) has a carrier plate (11, 12) and one or more baking inserts (25) arranged on the carrier plate, the baking inserts being designed to accommodate the dough to be baked, and that the baking inserts (25) are made of sintered ceramic having high toughness and low thermal expansion.