ELE CUT Surface Treatment

In a high voltage atmosphere, products having high insulating performance are needed. ELE CUT Coating bolt has high insulation and high corrosion resistance by a combination of various anticorrosive bolts and insulating materials (insulation sleeve and insulation washer). Anticorrosive bolts are selectable from TAKECOATⓇ-1000， TAKECOATⓇ-CERAMIC1，and DACROTIZED depending on the required anti-corrosive performance. Applicable to all materials， including double-ended bolts and hexagon bolts.

By basket type dip-spin coating method, a film of excellent throwing power is formed.

Super-hard, Anticorrosive, CNT-Composited Coating “NANOTECT®”

Features

Abrasion Resistance: NANOTECT® has excellent resistance againtst wear and abrasion.

Impact Resistance: NANOTECT® has the highest impact resistance of all resin coatings.

Bending Resistance: NANOTECT® has very high bending resistance.

Bending resistance: NANOTECT® has very high bending resistance.

Film Hardness: NANOTECT® film is almost as hard as metal coatings.

Lubrication: NANOTECT® has very high lubrication performance like PTFE coating.

Anti Corrosion: NANOTECT® has excellent corrosion resistance with the electric conductivity of CNT insulated by our unique technology of surface grafting.

World’s first uniformly dispersed carbon nanotubes

Carbon nanotubes have several times the tensile strength of steel and have high conductivity: they are a next-generation carbon material. Without being mixed with resin, the conductivity of the carbon nanotube materials cause corrosion, so they were not suitable as a coating for anti-corrosion purposes, however, Takenaka’s unique technology called “grafting” successfully blocks the conductivity and disperses the carbon nanotubes uniformly and at high density. The result has been a fusion of the strength of carbon nanotubes with Takenaka’s anticorrosion technology to create surface treatment, NANOTECT®.

Dispersion effect of Carbon Nanotube on solvent

Comparison of dispersion state of Carbon Nanotube in resin

grafted Carbon Nanotube (NANOTECT®)

Not grafted Carbon Nanotube

DACROTIZED Surface Treatment

DACROTIZED treatment developed Diamond Shamrock gives (anticorrosive film having both self-restoring function and sacrificial corrosion preventive function) to metal products， of which performance is superior to that of galvanizing.

By basket type dip-spin coating method, a film of excellent throwing power is formed.

TAKECOAT® – CERAMIC1 Surface Treatment

Realizing prevention of high temperature oxidation at 450°C

TAKECOAT® -CERAMIC1 is a product featuring heat resistance and long-term durability obtained by the combination of the under-treatment technology and the original ceramic film coating technology. The inorganic heat resistant resin coat film is as thin as 20 to 30.um and is high in lubricity as well. When used in fasteners, its fitting is smooth, the tightening is excellent and the processability is superior. It has been be favorably used in heat-resisting parts demanding prevention of high-temperature oxidation for a long term, such as bolts, nuts, washers and metal members used in heat exchangers and industrial plants.

Features

High heat resistance: No deterioration occurs in long-term continuous use at a maximum temperature of 450’C (in atmosphere) on low alloy steel. The film continues to maintain stability and sound after heating. So, TAKECOAT® -CERAMIC1 protects the seizing of nuts and bolts.

Cold and heat resistance (thermal shock test): Films do not peel off by thermal shock test (100 cycles) of heating to 450’C and cooling in water.

Stable fastening of bolts: In spite of ceramic coating, it is excellent in lubricity, low in torque and uniform making fastening of bolts is easier.

By the manufacturing method of Takenaka’s original treatment technology, a thin and uniform film is formed.

There is no danger of hydrogen embrittlement because there is no pickling process.

TAKECOAT®-1000 Surface Treatment

Fluorocarbon polymer coating in the world’s top shareTAKECOAT®-1000 saves your plants from corrosion in a corrosive area such as sea and desert area etc.

• TAKECOAT®-1000 is an astounding surface treatment with approximately 6-times the durability of hot-dip galvanizing as shown in salt spray testing to evaluate rust resistance. TAKECOAT®-1000 protects metal products from rust and extends their life in various corrosive environments.
• TAKECOAT® -1000 has a two-layer structure of special fluorocarbon polymer film and special under-treatment layer. Combined with a special treatment technology, the film is thin but is excellent in corrosion resistance and durability. The surface has a high lubricity.So, TAKECOAT®-1000 has the most suitable coating propaties for fasteners. This product has been used in structures and environment requiring corrosion resistance for a long period, including fastening bolts and metal parts for bridges, underground segments, buried pipes, marine structures, petroleum plants etc.

Features

Resistance to rust and corrosion: TAKECOAT®-1000 showed astounding anti-rust performance of 6,000 hours (hot-dip galvanizing was approx. 1,000 hours) in salt spray testing measuring anti-rust and anticorrosion performance. The superiority of that performance has also been affirmed from numerous outdoor exposure tests and usage results, on and under the sea, etc. Third-party organizations (Japan Quality Assurance Organization, US firm KTA Inc., etc.) have verified its superior performance in indoor accelerated corrosion tests.

Durability: Owing to high lubricity and hardness of fluorocarbon polymer film, the film is hardly damaged even when a high load or shearing force of a few 10 tons is applied on the film surface. Forming of rust from the damage portion is very rare. (Particularly effective for fastening of bolts). Stainless steel bolts are used with the aim of preventing seizing.

Heat resistance: Fluorocarbon polymer features excellent heat resistance and refrigerant resistance.Temperature of continuous use: -196°C to +200°CTemperature of intermittent use: -196·C to +230·C

Insulation: The film of fluorocarbon polymer is very thin and rigid, and is almost free from pin hole. Hence, it is effective to prevent (crevice corrosion),(galvanic corrosion),(pitting corrosion), etc. When steel bolts treated with TAKECOAT®-1000 are used to fasten stainless steel flanges, use plain washers treated with TAKECOAT®-1000 without fail.* For insulation in high voltage atmosphere, ELE CUT is recommended.

Stable fastening of bolts: In spite of fluorocarbon resin coating, it is excellent in lubricity, low in torque and unidorm making fastening of bolts is easier.

By the manufacturing method of Takenaka’s original treatment technology, a thin and uniform film is formed.

There is no danger of hydrogen embrittlement because there is no pickling process.

Durability in sea

Stainless steel corrodes in sea. Even in the such severe marine corrosive environments, TAKECOAT®-1000 protects metal from corrosion.

After 2 years of marine exposure test (Pacific Ocean coast, immersed in seawater)

Solt spray test