GEO Nation

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BUSINESS

Major Business TRI SYSTEM ANODIZING

What is TRI System?

It is our own technology securing powerful cementing power and airtightness through bonding with resins on metal by forming TRI film. GEO Nation is focusing on market commercialization and on securing technology development through exclusive alliance with Japanese TOADENKA.

Features of TRI System Technology

Excellent bonding strength

The metal and resins are bonded by bonding film formed on the metal surface with the TRI-System. The excellent bonding strength cannot be compared to bonding among molecules of adhesive. / resins/bonding part/metal/pulling direction/tensile strength

High airtightness

High airtightness can be maintained because the metal and resins are bonded evenly.

TRI film is generated evenly on the surface of metal in TRI treatment

The resins are left evenly in breaking the bonding side after injection)
Etching method irregularly generates holes on the surface of metal.

The resins are irregularly spread in breaking the bonding side after injection

Helium Leak Test

1. to inspect exactly water repellency by using He (Helium gas) atom which is smaller than molecule of water.

2. Amount of leakage: less than 9x10·10 P a·m3

TRI treated (aluminum) film surface
FE-SEM image
Aluminum-PPS bonding interface
FIB-SEM image
(TRI bonding layer / metal aluminum)

High reliability

< Tensile stress data of AL & PPS >

Tensile strength test after reliability test
fracture surface of metal layer after tensile force test

< Tensile stress data of Copper & PPS >

Tensile strength test after reliability test
fracture surface of metal layer after tensile force test

< Reliability test conditions >

constant temperature and humidity: 80˚C. 95%, 200hours
thermal shock: 80˚C, 30minutes ↔ -40˚C, 30minutes, 150cycles

High Yield Rate

Condition	Injection right after treatment	Injection 30days later (40℃ / 50%)
Initial Tensile Stress TEST
Hum’ & Tem’ Test
Thermal shock

Condition			Tensile Strength Data (MPa)			Remarks
Temp-eraturen	Humid	Lag time	Initial Inject.	Hum’&Tem’	Thermal Shock	Remarks
Injection right after TRI treatment			43	42	46	Basic condition
40	50	30	40	38	45	Summer condition

* Test performed 30days later after TRI treated

Possible materials for TRI System bonding

Total bonding of metal
and resins

category	tensile force	He leak	high temperature and humidity	thermal shock	MPa
copper(Cu)	25~35MPa	OK	25MPa	25MPa	under mass-production
aluminum(Al)	35~45MPa				under mass-production
stainless steel(SUS)	30~40MPa				Completion of development
titanium(Ti)
iron(Fe)
magnesium(Mg)

constant temperature and humidity: 80℃, 95%, 200hours
thermal shock: 80℃, 30minutes ↔ -40℃, 30minutes, 150cycles
grade of resin, The bonding power could be different by difference of mixed compound.
Materials besides above metals and resins are possible to bond after development and study.

Resins possible to bond