Oil-Type Lubricant for Forging with Controlled Viscosity
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Solution Overview
Problem
Conventional lubricants for forging face issues such as nozzle clogging, environmental staining, reduced production efficiency, and shortened mold life due to water-based formulations, which lead to non-uniform products and increased maintenance costs.
Innovation Solution
A water-free oil-type lubricant with a flash point of 70-170°C and kinematic viscosity of 4-40 mm²/s, composed of solvents, mineral or synthetic oils, ester base oils, silicone oils, and additives, including wettability improvers and antioxidants, designed to enhance adhesive efficiency and high-temperature durability, used in conjunction with a spray apparatus for controlled delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If water-based lubricant is used for forging, then the lubricant can adhere to the workpiece at intermediate temperatures, but the lubricant causes nozzle clogging and environmental staining
Solution Approach 1:
The patent changes the fundamental parameter of the lubricant composition from water-based to oil-based formulation. This parameter change eliminates the harmful effects of water-based lubricants (nozzle clogging, environmental staining) while maintaining effective lubrication through carefully selected oil components with appropriate viscosity and flash point characteristics.
Solution Approach 2:
The patent converts the potential harm of oil-based lubricants (higher viscosity, potential for residue) into benefits by carefully selecting oil components and additives that provide superior lubrication, prevent galling and agglutination, and maintain clean application characteristics. The oil-based formulation transforms the problem of water evaporation and re-wetting into sustained lubrication without nozzle clogging.
2Ease of operation
If conventional water-based lubricant is used, then the lubricant can be sprayed easily, but the lubricant leads to reduced production efficiency and shortened mold life
Solution Approach 1:
The patent modifies the lubricant's physical parameters including viscosity (4-40 mm²/s at 40°C) and flash point (70-170°C) to optimize both sprayability and performance. The oil-based formulation with controlled viscosity ensures easy spray application while the appropriate flash point prevents premature evaporation, thereby improving production efficiency and extending mold life through consistent lubrication.
Solution Approach 2:
The patent employs a composite oil-based lubricant formulation combining multiple oil components (mineral oil, synthetic oil, ester base oil, silicone oil) and functional additives (wettability improver, antioxidant, extreme pressure agent). This composite material provides synergistic effects that enhance sprayability, prevent galling and agglutination, and protect the mold, thereby improving overall production efficiency and mold durability.
3Reliability
If oil-based lubricant with high viscosity is used, then the lubricant prevents galling and agglutination effectively, but the lubricant increases temperature fluctuations during forging
Solution Approach 1:
The patent carefully controls the viscosity parameter of the oil-based lubricant (4-40 mm²/s at 40°C) to achieve an optimal balance. This controlled viscosity provides sufficient film strength to prevent galling and agglutination under high pressure, while the moderate viscosity range allows for better heat dissipation and reduced temperature fluctuations compared to high viscosity lubricants.
Solution Approach 2:
The composite lubricant formulation combines oil components with different viscosity characteristics and thermal properties. The mixture of mineral oil, synthetic oil, ester base oil, and silicone oil creates a balanced formulation that provides effective lubrication to prevent galling and agglutination while maintaining thermal stability and minimizing temperature fluctuations during the forging process.
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 oil-type lubricant ensures minimal nozzle clogging, maintains a clean working environment, prolongs mold life, reduces production cycle time, and enhances production efficiency by minimizing temperature fluctuations and lubricant consumption, while preventing galling and agglutination.
Implementation Method 1
in the case of the cold forging, a film of lubricant is more likely to be created due to the physical adsorption of the lubricant
Implementation Method 2
the flash point thereof is confined to the range of 70-170°C
Data Source
AI summary
An oil type lubricant for forging, which is featured in that the flash point thereof is confined to the range of 70-170° C., the kinematic viscosity thereof at 40° C. is confined to the range of 4-40 mm2/s and that it contains neither water nor an emulsifier. A forging method and a spray apparatus wherein the above-described oil type lubricant is used.