Impregnation Basket with Segmented Bins and Chrome-Plated Pins

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Solution Overview

Problem

Existing impregnation systems for castings face issues such as damage during processing, imbalance in loading, excess sealant consumption, and jamming due to the collision of castings and sealant sticking, which affect the efficiency and reliability of the vacuum impregnation process.

Innovation Solution

A system comprising a basket with multiple bins and a gantry, where the basket is made of stainless steel or chrome-plated steel to prevent rust and excess sealant retention, and includes sliding bins with perforated polypropylene partitions to prevent casting collision and a gripper with chrome-plated pins to prevent sealant sticking, allowing for balanced loading and controlled sealant flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If castings are loaded in a basket for vacuum impregnation, then the impregnation process can be automated, but the castings may collide and get damaged during rotation

Engineering Contradiction:
Improveautomation of impregnation processVSAvoidcasting integrity
Core Design Contradiction:
Extent of automationVSReliability

Solution Approach 1:

The basket is divided into multiple bins that can be independently adjusted and locked. Each bin acts as a separate compartment to hold castings, preventing them from colliding during rotation while maintaining automated processing capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Castings are positioned and secured in the bins before the impregnation process begins. The bins are pre-adjusted to appropriate positions and locked in place, ensuring castings remain stationary during the automated rotation and impregnation cycles.

Inventive Principle:
Principle #10Preliminary action

2Ease of manufacture

If the basket is made of standard steel, then manufacturing is simple, but sealant sticks and polymerizes on the surface causing excess consumption and jamming

Engineering Contradiction:
Improvebasket manufacturing simplicityVSAvoidsealant consumption
Core Design Contradiction:
Ease of manufactureVSLoss of substance

Solution Approach 1:

The basket material surface properties are modified by applying chrome plating or other non-stick coatings. This changes the surface characteristics to prevent sealant adhesion and polymerization, reducing sealant consumption and eliminating jamming issues while maintaining manufacturing feasibility.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If bins are fixed in the basket, then castings are securely held, but the basket cannot be adjusted for different loading configurations

Engineering Contradiction:
Improvecasting position stabilityVSAvoidbasket loading flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The bins are designed with sliding and locking mechanisms that allow them to be moved to different positions along the basket and secured at various locations. This dynamic configuration capability enables the basket to adapt to different loading patterns while maintaining casting stability during operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The bins serve multiple functions: they hold castings securely, can be positioned at different locations, and can be locked in place. This multi-functionality allows a single basket design to handle various loading configurations for different production requirements.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Ease of manufacture

If the basket surfaces are not polished, then manufacturing is easier, but sealant retains on the surface causing excess consumption

Engineering Contradiction:
Improvebasket surface preparationVSAvoidsealant retention
Core Design Contradiction:
Ease of manufactureVSLoss of substance

Solution Approach 1:

The basket surface undergoes polishing or chrome plating treatment to change its physical properties. This creates a smooth, non-porous surface that prevents sealant retention and facilitates easy release, reducing sealant consumption without significantly complicating the manufacturing process.

Inventive Principle:
Principle #35Parameter changes

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 system effectively prevents casting damage, optimizes sealant usage, and reduces jamming issues, enabling efficient and balanced impregnation of castings of varying sizes and shapes while ensuring proper handling and orientation during the impregnation process.

Implementation Method 1

vacuum impregnation of the casting is carried out... an impregnation material, or the impregnant, also called sealant or resin is introduced into the porosity within the wall thickness of the casting using vacuum

Methodology Applied
Scientific EffectVacuum: Vacuum

Implementation Method 2

The liquid sealant that penetrates into the porosities... The porosities in the castings are caused by internal shrinkages or gas cavity, oxide films and inclusions etc.

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 3

The liquid sealant that penetrates into the porosities is subsequently cured by heating at elevated temperature

Methodology Applied
Scientific EffectCuring:

Implementation Method 4

The basket is made up of a material selected from any one of stainless steel, mild steel and a steel material duly chrome plated or surface protected to avoid rusting

Methodology Applied
Scientific EffectChrome plating: Electroplating

Implementation Method 5

The basket is surface finished or polished to prevent the sealant from retaining thereon thereby preventing excess consumption of the sealant

Methodology Applied
Scientific EffectSurface polishing:

Implementation Method 6

The partition sheet includes a plurality of perforations and a plurality of slots configured thereon. The plurality of perforations provides water jet washing effect during wash and hot cure cycles of the castings

Methodology Applied
Scientific EffectWater jet: Jet

Data Source

PatentUS10478891B2System for impregnation of castings
Publication Date: 2019.11.19 SEN SAIBAL
  • US10478891B2 patent drawing
  • US10478891B2 patent drawing
  • US10478891B2 patent drawing

AI summary

A system (100) for impregnation of castings is disclosed. The system (100) comprises a basket (10) and a gantry (50). The basket (10) includes a plurality of bins (12) and a stub (14) configured thereon. The plurality of bins (12) is adapted for holding the castings thereon and is lined with a partition sheet having a plurality of perforations (12A) and plurality of slots (12B) configured thereon. The gantry (50) includes grippers (16) configured thereon. The system (100) is designed to allow partial or full loading of the basket (10) with different castings held therein in a balanced manner to be impregnated without being damaged. The system (100) prevents excess sealant consumption from basket surfaces as well as prevents sticking of the sealant on gripper's pins (15) thereby preventing frequent blockage/jamming issues.