Sanitary Fixture Shell Design for Reduced Reworking
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Solution Overview
Problem
Conventional sanitary fixtures require extensive reworking after casting to prepare for electroplating, and existing designs often involve complex connections between decorative and functional components, which can be inefficient and prone to gas escape during coating processes.
Innovation Solution
A sanitary fixture design featuring shell-shaped single parts made of metallic alloys or plastics, die-cast and connected adhesively or by material bonding to form a hollow body around a functional unit, with profiled joint edges and a coating process to create a seamless appearance, reducing material requirements and processing steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If gravity/low-pressure brass casting method is used, then the housing body can be produced, but extensive reworking and material usage are required
Solution Approach 1:
The patent changes the casting method from gravity/low-pressure casting to high-pressure die-casting. This parameter change in the manufacturing process enables production of housing bodies with precise contours and minimal material usage without requiring extensive reworking, directly resolving the contradiction between ease of manufacture and material loss.
2Manufacturing precision
If conventional casting methods are used, then the housing body can be produced, but precise contours and minimal wall thicknesses are difficult to achieve
Solution Approach 1:
The patent applies high-pressure die-casting instead of conventional casting methods. This changes the process parameters (pressure, temperature control, mold design) to achieve precise contours and minimal wall thicknesses (0.8-2.0 mm) directly from casting, eliminating the need for extensive reworking and simplifying production.
3Shape
If the housing body is produced as a single piece, then aesthetic integration is achieved, but material requirements and production complexity increase
Solution Approach 1:
The patent divides the housing body production into two stages: first casting separate shell-shaped parts with minimal material usage, then joining them adhesively or by material bonding. This segmentation allows achieving the appearance of a single-piece housing with excellent aesthetic integration while reducing total material requirements and simplifying production.
Solution Approach 2:
The patent uses composite construction by joining multiple shell-shaped parts made from optimized material thicknesses. The combination of adhesive bonding or material bonding with thin-walled shells (0.8-2.0 mm) creates a structure that appears as a single piece aesthetically while minimizing material consumption.
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 design minimizes reworking and material usage, achieves precise contours, and ensures a gas-tight coating, presenting a cost-effective and efficient method for producing sanitary fixtures with improved surface quality and reduced visibility of separation joints.
Implementation Method 1
The shell-shaped single parts are made of a metallic alloy in the die-casting process
Implementation Method 2
The shell-shaped single parts are connected to one another adhesively or by material bonding to form a hollow body
Data Source
AI summary
The invention relates to a sanitary fitting having a housing element and a functional unit which comprises water-conducting components and is housed in the housing body of the sanitary fitting, wherein the housing element comprises at least two shell-shaped individual parts. The shell-shaped individual parts are produced from a metal alloy or a plastic in a diecasting process and are adhesively bonded to each other or connected to each other by means of material bonding to form a hollow element surrounding the functional unit by means of a joining process.