IS Grade F1

Transcription

1 IS Grade F1 Technical Description : These are Fabric Based Laminated Bakelite sheets confirming to specification, as per IS Bakelite Sheets of Grade F1 are manufactured from fine weave scoured Cotton fabric. These Bakelite sheets posses good electrical and mechanical Properties and can be machined to a fine finish. Grade F1 Bakelite Sheets are suitable for small components such as instrument gears as well as intricate Machined items. Thickness of sheets ranges from 0.4 MM 150 MM. Standard size of Bakelite sheets: 1220 x 1220mm (4 ft x 4 ft) or 1220mm x 610 (4 ft x 2 ft) or 610mm x 610mm (2ft x 2ft) or 2440mm x 1220mm (8ft x 4ft). Bakelite Sheets are supplied as per tolerance specified in IS:2036. More closer tolerance can be met as per customers specific requirement. Available Bakelite sheet colors are natural brown, dark brown or black. Technical Data as per IS Grade F1 Properties Units Average Test Value As PerIS: Insulation Resistance Meg Ohms Min. afterimmersion in water for 24 hrs at 20 C Strength in Oil at 90 C Flat wise (1.6 mmthickness) Kv/ mm min Edgewise (3.2 mm Thickness) Kv min Tensile strength kgcm² Flexural Strength / Cross Breaking Kg/cm² Min. strength Shear Strength Kgf/cm² Min. Impact Strength (Edgewise Charpy KJ/m² 8 6 Min method Specific Gravity Water Absorption (Specimen size mm square)

2 Thickness mm Maximum Value mg Typical Value mg IS Grade F2 Technical Description: These are fabric base Bakelite Sheets confirming to specification, as per IS 2036, Bakelite sheets of Grade F2 are manufactured from medium weaved, cotton Fabric and are easily machinable and have good strength. These Fabric Bakelite Sheet Of F2 Grade posses a very good strength to weight ratio. The material of this grade has a superior machining and punching properties and better resistance of chemicals and is recommended for small parts. Applications: Shuttles, Gears, Pulleys, Automobile couplings, Structural parts, Spindles, Machine Tool gibs/ slideways, Low Voltage contact breaker, Friction plates, etc. Thickness of Bakelite sheets ranges from 0.4 MM 150 MM. Standard size of Bakelite sheets: 1220 x 1220mm (4 ft x 4 ft) or 1220mm x 610 (4 ft x 2 ft) or 610mm x 610mm (2ft x 2ft) or 2440mm x 1220mm (8ft x 4ft). Sheets are supplied as per tolerance specified in IS:2036. More closer tolerance can be met as per customers specific requirement. Available Bakelite sheet colors are natural brown, dark brown or black. Technical Data as per IS Bakelite Sheet Grade F2 Properties Units Average Test Value As PerIS: Insulation Resistance Meg Ohms Min. afterimmersion in water for 24 hrs at 20 C Strength in Oil at 90 C Flat wise (1.6 mmthickness) Kv/ mm min

3 Edgewise (3.2 mm Thickness) Kv min Tensile strength Kgf/cm² Flexural Strength / Cross Breaking Kgf/cm² Min. strength Shear Strength Kgf/cm² Min. Impact Strength (Edgewise Charpy KJ/m² Min method Specific Gravity Water Absorption (Specimen size mm square) Thickness mm Maximum Value mg Typical Value mg IS Grade F3 Technical Description: These are fabric base Bakelite Sheets confirming to specification, as per IS 2036, Bakelite sheets of Grade F3 are manufactured from coarse weaved, Grey Cotton Fabric and have high impact resistance and good mechanical strength The material of Bakelite F2 grade is strong and tough with good machining properties. It is suitable for heavy duty gears and other applications requiring high impact strength. Applications: Heavy duty gears, Pulleys, Piling dolly, Workbench tops, Rolling mill bearings, etc. Thickness of Bakelite sheets ranges from 0.9 MM 150 MM. Standard size of Bakelite sheets: 1220 x 1220mm (4 ft x 4 ft) or 1220mm x 610 (4 ft x 2 ft) or 610mm x 610mm (2ft x 2ft) or 2440mm x 1220mm (8ft x 4ft). Sheets are supplied as per tolerance specified in IS:2036. More closer tolerance can be met as per customers specific requirement. Available Bakelite sheet colors are natural brown, dark brown or black.

4 Technical Data as per IS Grade F3 Properties Units Average Test Value As PerIS: Insulation Resistance Meg Ohms Min. afterimmersion in water for 24 hrs at 20 C Strength in Oil at 90 C Flat wise (1.6 mmthickness) Kv/ mm min Edgewise (3.2 mm Thickness) Kv min Tensile strength Kgf/cm² Flexural Strength / Cross Breaking Kgf/cm² Min. strength Shear Strength Kgf/cm² Min. Impact Strength (Edgewise Charpy KJ/m² Min method Specific Gravity Water Absorption (Specimen size mm square) Thickness mm Maximum Value mg Typical Value mg IS Grade F4 Technical Description: These are fabric base Bakelite Sheets confirming to specification, as per IS 2036, Bakelite sheets of Grade F4 are manufactured from medium weaved, fabric and posses very good die electrical properties and medium mechanical strength. Application: Generator Slot Wedge insulation, busbar supports and Armature Wedges etc. Thickness of Bakelite sheets ranges from 0.5 MM 150 MM. Standard size of sheets: 1220 x 1220mm (4 ft x 4 ft) or 1220mm x 610 (4 ft x 2 ft) or 610mm x 610mm (2ft x 2ft) or 2440mm x 1220mm (8ft x 4ft).

5 Bakelite Sheets are supplied as per tolerance specified in IS:2036. More closer tolerance can be met as per customers specific requirement. Available Bakelite sheet colors are natural brown, dark brown or black. Technical Data as per IS Grade F4: Properties Units Average Test Value As PerIS: Insulation Resistance Meg Ohms Min. afterimmersion in water for 24 hrs at 20 C Strength in Oil at 90 C Flat wise (3.0 mmthickness) Kv/ mm 4.5 Min 4.0 min Edgewise (12.7 mm Thickness) Kv Kv Tensile strength Kgf/cm² Flexural Strength / Cross Breaking Kgf/cm² Min. strength Impact Strength (Edgewise Charpy KJ/m² 9 7 Min method Specific Gravity Water Absorption (Specimen size mm square) Thickness mm Maximum Value mg Typical Value mg NEMA LI Grade C Technical Description: Bakelite Sheets of NEMA Grade C are fabric base Phenolic sheets, Phenolic sheets posses good mechanical and impact strength, hence they are intended for application requiring high Impact strength. Applications of Bakelite Sheets NEMA GRADE C: Include gears and bearings. It has lower mechanical strength than material with glass substrates, but has superior impact resistance when compared to paper based products. This material is not as suitable for fine machining as Grade L Bakelite sheets.

6 Thickness of Bakelite sheets ranges from 0.4 MM 40.0 MM. Standard size of Bakelite sheets: 1220 x 1220mm (4 ft x 4 ft) or 2440mm x 1220mm (8ft x 4ft). Available Bakelite sheet colors are natural brown, dark brown and black. Tolerance of thickness is as per NEMA Standards. Technical Data for Bakelite Sheets NEMA Grade C Properties Units Condition Test Methods ASTM Tensile Strength ksi D229 A LW Average Test Values As Per NEMA LI CW Flexural Strength(1/2 thick) LW ksi D229 A Min Min CW Izod Impact D229 E.48/50 (1/2 Thick) Ft-lb/in LW

7 (notch) CW Ibs D229 A Bonding Strength (1/2 Thick) Maximum Water Absorption(1/2 Thick) % D229 D-24/ Max gm/cc Density Min. BreakdownVoltage Kv D229 A (1/4 thick) NEMA LI Grade CE Technical Description: Bakelite Sheets of NEMA Grade CE are fabric base Phenolic sheets. These Bakelite sheets posses lower mechanical strength than material with glass substrates, but have greater impact resistance than paper based products. Applications of Bakelite Sheet NEMA Grade CE: Grade CE Bakelite sheets are mostly used in electrical applications requiring good mechanical strength and moisture resistance but are not suited for fine machining. Bakelite sheets of this Grade NEMA CE have medium dielectric loss. Thickness of Bakelite sheets ranges from 0.4 MM 20.0 MM. Standard size of sheets: 1220 x 1220mm (4 ft x 4 ft) or 2440mm x 1220mm (8ft x 4ft). Available sheet colors are natural brown, dark brown and black. Tolerance of thickness is as per NEMA Standards.

8 Technical Data for Bakelite Sheets NEMA Grade CE Properties Units Test Methods Condition Average Test Values As Per NEMA LI ASTM Tensile Strength ksi D229 A LW CW Flexural Strength(1/2 ksi D229 A Min thick) LW Min CW Min Izod Impact D229 E.48/50 (1/2 Thick) LW Ft-lb/in CW (notch) Bonding Strength Ibs D229 A (1/2 Thick) Maximum Water % D229 D-24/ Absorption(1/2 Thick) Density gm/cc Min. Kv D229 A Min BreakdownVoltage(1/4 thick) D-24/ Min Electriical Strength V/ mil D229 Step by Perpendicular to Step laminated sheet (0.125 Thick) NEMA LI Grade L Technical Description: Bakelite Sheets of NEMA Grade L are fabric base Phenolic sheets. Bakelite Sheets of this grade L posses good punching and machining properties and are more resistant to chemicals.

9 Applications of Bakelite Sheets NEMA Grade L: They are mostly suited for fine finish applications such as small gears as these sheets are manufactured using medium weave cotton fabric. Grade L Bakelite Sheets are not suited for electrical applications. Thickness of Bakelite sheets ranges from 0.4 MM 40.0 MM. Standard size of sheets: 1220 x 1220mm (4 ft x 4 ft) or 2440mm x 1220mm (8ft x 4ft). Available bakelite sheet colors are natural brown, dark brown and black. Tolerance of thickness of Bakelite sheet is as per NEMA Standards. Technical Data for Bakelite Sheet NEMA Grade L Properties Units Test Methods Condition ASTM Average Test Values As Per NEMA LI Tensile Strength ksi D229 A LW CW Flexural Strength(1/2 thick) ksi D229 A LW Min CW Min Izod Impact (1/2 Thick) D229 E.48/50 LW Ft-lb/in CW (notch) Bonding Strength D (1/2 Thick) Ibs A D48/ Maximum Water % D229 D-24/ Max Absorption(1/2 Thick)

10 Density gm/cc Min. Breakdown Kv Voltage D229 A (1/4 thick) NEMA LI Grade LE Technical Description: Bakelite Sheets of NEMA Grade LE are fabric base Phenolic sheets. Bakelite Sheets of this grade LE posses superior impact resistance when compared to paper based Bakelite products but have lower mechanical strength than material with glass substrates, they are suited for fine machining and in electrical applications requiring good moisture resistance. These Bakelite sheets posses good dielectric properties. Thickness of Bakelite sheets ranges from 0.4 MM 20.0 MM. Standard size of Bakelite sheets: 1220 x 1220mm (4 ft x 4 ft) or 2440mm x 1220mm (8ft x 4ft). Available sheet colors are natural brown, dark brown and black. Tolerance of thickness is as per NEMA Standards. Technical Data for Bakelite Sheets of NEMA Grade LE Properties Units Test Methods Condition ASTM Average Test Values As Per NEMA LI Tensile Strength ksi D229 A LW CW Flexural Strength(1/2 thick) ksi D229 A

11 LW Min CW Min Izod Impact (1/2 Thick) D229 E.48/50 LW Ft-lb/in Min CW (notch) Min Bonding Strength D (1/2 Thick) Ibs A Maximum Water % D229 D-24/ Max Absorption(1/2 Thick) Density gm/cc Min. Breakdown Kv Voltage (1/4 thick) Insulation Resistance Electriical Strength Perpendicular to laminated sheet (0.125 Thick) D229 A Min D-24/ Min Mohms D229 C-96/ V/ mil D229 Step by Step