Unsymmetrical Ferrule Blank Extrusion With Streamlined Surface Treatment
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Solution Overview
Problem
Current cold-extrusion methods for bearing ferrules are inefficient due to high equipment investment, environmental pollution, and low automation, with complex chemical treatments and manual material feeding leading to safety issues and high energy consumption.
Innovation Solution
A precise and efficient cold-extrusion forming method for unsymmetrical ferrule blanks involving shot-blasting pretreatment, automated phosphating and saponification, and automatic feeding using a transmission bevel gear assembly, reducing chemical usage and energy consumption while enhancing automation and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If phosphating and saponification treatment is performed using conventional methods, then the surface treatment quality is improved, but the equipment investment and process complexity increase significantly
Solution Approach 1:
The patent extracts and eliminates the pickling and neutralization steps from the conventional phosphating process, keeping only the essential phosphating and saponification steps. This reduces the number of chemical treatments from 9 steps to 5 steps, simplifying the process while maintaining surface treatment quality
Solution Approach 2:
The patent replaces the harmful pickling process with shot blasting, which achieves surface preparation without using strong acids that require subsequent neutralization. This converts a harmful chemical process into a mechanical process that is more environmentally friendly and simpler
2Manufacturing precision
If pickling and neutralization procedures are used for surface treatment, then the surface preparation is improved, but environmental pollution and equipment investment increase
Solution Approach 1:
The patent replaces harmful chemical pickling with shot blasting, converting a chemically harmful process into a mechanically beneficial one that achieves surface preparation without acid waste requiring neutralization
Solution Approach 2:
The patent uses shot blasting as a disposable mechanical process instead of maintaining complex chemical baths that require continuous monitoring, temperature control, and waste treatment
3Ease of operation
If manual feeding and blanking is used in cold-extrusion, then the operation flexibility is maintained, but the production efficiency and safety are reduced
Solution Approach 1:
The patent implements automatic feeding and blanking systems that serve themselves without manual intervention, using sensors and automated mechanisms to feed blanks into the extrusion press and remove finished products, thereby increasing productivity while maintaining safety
Solution Approach 2:
The patent replaces manual mechanical operations with automated mechanical systems controlled by sensors and programmable logic, eliminating the need for operators to manually handle hot or high-pressure components
4Reliability
If conventional phosphating and saponification process is used, then the lubricating layer formation is improved, but the energy consumption and treatment time increase
Solution Approach 1:
The patent removes the energy-intensive pickling and neutralization steps from the process, keeping only phosphating and saponification which are essential for lubricating layer formation, thereby reducing total energy consumption and treatment time
Solution Approach 2:
The patent optimizes the phosphating and saponification process to ensure continuous effective action on the surface, achieving proper lubricating layer formation in fewer steps with optimized timing and temperature control
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 method reduces equipment investment, energy consumption, and environmental pollution while improving processing efficiency and safety through streamlined chemical treatment and automated feeding, ensuring precise and efficient ferrule production.
Implementation Method 1
a surface of a ferrule blank is firstly subjected to shot-blasting pretreatment with a shot-blasting machine
Implementation Method 2
phosphating, washing, saponification and drying
Implementation Method 3
phosphating, washing, saponification and drying
Implementation Method 4
a metal blank is placed in a cold-extrusion die cavity, and a pressure is applied to the blank via a male die fixed on a press at room temperature so that the metal blank is plastically deformed
Data Source
AI summary
A precise and efficient cold-extrusion forming method for an unsymmetrical ferrule blank, comprising pipe-cutting blanking, surface phosphorus saponification treatment, ferrule cold-extrusion forming, and turning post-treatment. In the step of surface phosphorus saponification treatment, firstly, shot blasting pretreatment is performed on the surface of a ferrule blank by using a shot blasting machine; and then, the process steps of washing, phosphorization, washing, saponification, and drying are completed in sequence. In the step of ferrule cold-extrusion forming, automatic material feed is performed by using an automatic feeding machine, and the material is conveyed to a cold-extrusion punch press for cold-extrusion. The method features low equipment investment cost, short technological process, and low energy consumption.