Applications
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Thrust washers for transmissions: sliding properties and reduced weight
Conventional materials
Metal (steel), PEEK, non-thermoplastic PI
Issues
Compared with metals: reduced weight, sliding properties (self-lubricating), damage to other components in the event of breakage
Required Properties
Compared with resins: critical PV value (high temperature stiffness), dimensional accuracy
Advantages with AURUM™
- Low weight
- Reduced damage to other components
- High PV rating
- Dimensional accuracy
Effects of weight reduction: approx. 60% (compared with SUS)
Can be used in sliding applications with harsh environments (use for large-diameter washers)Recommended grades
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Seal rings for transmissions: sliding properties, dimensional accuracy
Conventional materials
PEEK, non-thermoplastic PI
Issues
PEEK: critical PV value, dimensional stability at 150℃ and higher (Gap control)
Non-thermoplastic PI: Gap joint shape flexibility, dimensional stabilityRequired Properties
Sliding properties (critical PV value), coefficient of expansion, chemical resistance (ATF properties)
Advantages with AURUM™
- High PV rating
- Dimensional accuracy
- Gap joint shape flexibility
Can be used in sliding applications with harsh environments (in environments of 150℃ and higher)
Gap joint shape flexibility (thermoplastic resin)Recommended grades
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Turbo charger abradable seal: improved sealing properties
Conventional materials
Metal (AI), PI coating, PTFE material
Issues
Metals: gap control (limited due to metal-to-metal contact)
Resins: coefficient of expansion (-60 - 230℃), high cost due to cuttingRequired Properties
Coefficient of expansion, low damage to other materials, chemical resistance (blow-by resistance)
Advantages with AURUM™
- Coefficient of expansion
- Reduced damage to other components
- Injection molding (low cost)
Reduced fuel consumption: 2% reduction
Recommended grades
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Bearings: high sliding properties, creep resistance
Conventional materials
Metal, against thermoplastic resin
Issues
Metals: self lubrication
Resins: critical PV value, creep resistanceRequired Properties
Molded products with high dimensional accuracy due to injection molding
Advantages with AURUM™
- Critical PV value (high temperatures)
- Creep resistance
- Self lubrication (against metals)
Can be applied to bearings in harsh environments (around 245℃)
Recommended grades
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Pistons: reduced weight
Conventional materials
Metal
Issues
High density
Required Properties
High temperature stiffness, fatigue resistance, sliding properties
Advantages with AURUM™
Reduced weight of pistons > reduced counter weight
Engines with lower weights can be proposedRecommended grades
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Oil seals for construction machinery: long-term durability
Conventional materials
Cotton phenol
Issues
Long-term durability (chemical resistance), dust generation during processing
Required Properties
Long-term durability(high temperature stiffness, sliding properties), toughness
Advantages with AURUM™
- Long-term durability(high temperature stiffness, sliding properties)
- Toughness
Long-term durability
High-quality cylinders (drastic reduction in market complaints)Recommended grades
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Structural components of aircraft engines: high temperature stiffness, chemical resistance
Conventional materials
Metal
Issues
Weight reduction, corrosion resistance
Required Properties
High temperature stiffness (~ 230℃), chemical resistance (MEK, acetone)
Advantages with AURUM™
- Long-term durability(high temperature stiffness, sliding properties)
- Chemical resistance
Complex shapes can be created through injection molding
Excellent high temperature stiffness is maintained even in engine environmentsRecommended grades
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Resin for CFRP: high temperature stiffness (high Tg)
Conventional materials
Thermosetting resins, thermoplastic resins (PEEK, PEI)
Issues
Thermosetting resins: processing cycle time (long), expiration date, heat resistance
PEEK, PEI: High temperature stiffnessRequired Properties
Aircraft applications: High chemical resistance (MEK, acetone, aircraft fuel), high temperature stiffness
Advantages with AURUM™
- High temperature stiffness
- Chemical resistance
- Amorphous (shrinkage factor)
- Fine powder
CFRP with excellent high temperature properties > can be applied to aircraft components and materials
Recommended grades
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Electric wire coating (extrusion coating): heat resistance, extrusion coating
Conventional materials
PAI (polyamide-imide), thermoplastic resin (PEEK)
Issues
PAI (polyamide-imide): film formability of at least 100 μｍ (cost), pinholes
Required Properties
Heat resistance on par with PAI (polyamide-imide) (200℃), extrusion coating (10 - 500 μｍ)
Advantages with AURUM™
- Heat resistance (200℃)
- Creep resistance
- Extrusion coating
Possesses heat resistance and electrical properties comparable to PAI (polyamide-imide), and enables extrusion coating
Recommended grades
Other uses
CNG Regulator Valve Seat
Cost ReductionOil pump outer rotor proposal
Weight reductionDemodialyzer: Impeller (For Discharge)
High precision gearSliding parts for sewing machines
Limit PV value, high-precision molded productsIC Tray
Low WarpageLiquid crystal panel manufacturing jig
high temperature rigidityDiamond Grindstone Binder
Fine Powder,High Temperature Stiffness