Fiberglass Oven Outer Covering for Lightweight Mass Production
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Solution Overview
Problem
Current cooking oven manufacturing methods face challenges such as excessive weight, long manufacturing time, high labor costs, insufficient impermeability, aesthetic decay, and low resistance to thermal expansion due to traditional materials like plaster and bricks, which hinder mass production and durability.
Innovation Solution
The outer covering of the oven is made as a prefabricated rigid composite multilayer based on fiberglass, providing improved thermal resistance, lightness, and impermeability, with a finishing layer that mimics plastered walls for aesthetic appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If traditional materials like plaster and bricks are used for the outer covering, then aesthetic appearance can be achieved, but excessive weight and long manufacturing time result
Solution Approach 1:
The patent applies composite materials by combining fiberglass reinforcement with resin matrix to create an outer covering that is both lightweight and aesthetically pleasing. The composite structure provides the necessary mechanical strength while maintaining a reduced weight compared to traditional plaster and brick constructions.
Solution Approach 2:
The patent changes the material parameters by transitioning from heavy traditional materials (plaster, bricks) to lightweight composite materials (fiberglass-reinforced resin). This parameter change in material density and composition achieves weight reduction while maintaining aesthetic appearance through proper finishing techniques.
2Strength
If traditional masonry and plastering methods are used, then structural strength can be achieved, but excessive manufacturing time and high labor costs result
Solution Approach 1:
The patent applies preliminary action by pre-mixing the resin with fiberglass reinforcement and preparing the composite material before application. The outer covering is manufactured as a prefabricated element with integrated reinforcement, allowing for faster installation and reduced on-site manufacturing time compared to traditional multi-step masonry and plastering processes.
Solution Approach 2:
The patent merges multiple functions into a single composite material system. The fiberglass-reinforced resin simultaneously provides structural strength, waterproofing, and aesthetic finishing in one integrated layer, eliminating the need for separate structural and finishing operations required in traditional masonry construction.
3Reliability
If traditional plaster and mortar are used for the outer covering, then impermeability can be partially achieved, but insufficient waterproofing and aesthetic decay over time result
Solution Approach 1:
The patent uses composite materials where the resin matrix provides inherent waterproofing properties that mortar and plaster cannot achieve. The fiberglass reinforcement adds structural integrity that prevents cracking and degradation over time, ensuring both impermeability and long-term durability against atmospheric agents.
Solution Approach 2:
The patent replaces traditional short-lived plaster and paint coatings with a durable composite material system that provides long-term protection. The fiberglass-reinforced resin outer covering is designed to withstand atmospheric exposure for extended periods without degradation, eliminating the need for frequent repainting or repair.
4Stability of the object's composition
If traditional rigid materials are used for the outer covering, then structural stability can be achieved, but low resistance to thermal expansion and generation of cracks result
Solution Approach 1:
The patent applies composite materials where fiberglass reinforcement provides tensile strength and flexibility to accommodate thermal expansion and contraction. The resin matrix bonds the fiberglass fibers to create a unified structure that can withstand thermal stresses without cracking, maintaining both structural stability and thermal resistance.
Data Source
AI summary
A process for manufacturing a cooking oven, particularly for food, comprising a step of making a part of the outer covering of the oven as one prefabricated fiberglass piece, is described.