| |
Knitted wire mesh gasketing and sealing systems are applied to those applications in which other materials are inadequate. These include cryogenic, high temperature, corrosive atmosphere, heat conductive, high usage, or special service applications.
Knitted wire mesh seals and gasketing may be used for joints that remain permanently closed after assembly, joints that are frequently opened and closed, and joints where there is complete freedom of positioning in repeated closures. In all of these applications, conventional materials require periodic replacement. And even where replacement can be scheduled well in advance of the estimated incipient failure point. replacement cost and downtime are high.
Rishikesh Electromatic has a wide range of machines and offers many possibilities which allow you to choose the more suitable solution to your needs. Our knitted mesh are made from all material available in wire shape.
A few of the many of the applications are listed below, why not let us work on your requirements?
| Diesel Injector Filters |
Oil and Air Breather Elements |
| Catalytic Converter Mesh |
Insulator Blanket Mesh |
| Exhaust Seals |
Separators for Liquid Vapor used in
Petrochemical Plants |
| Mufflers and Silencers Pneumatic
Tools Flame Arrestors |
Heat Exchange Media |
| Metal and Plastic Sponges |
Lint traps - Aluminum |
| Copper Mesh |
Oil-Bath Separators |
| Mist Elimination Pads |
Ground Wire Mesh |
|
|
|
|
Metals Used for Knitted Mesh Gaskets
MONEL (MO)
To DIN 17743, 17750, 17754, QQ-N-281, BS3075NA13 CLASS A WIRE DIAMETER 0.11mm Std.
This is a naturally occurring alloy of approximately 65% NICKEL, 30% COPPER, 2% IRON. (There may also be some MANGANESE and occasionally ALUMINIUM present.
Monel is the most commonly used wire for knitted mesh gasketing material. It has good corrosion resistance in all but the most extreme environments, it is reasonably conductive and is tough with high tensile strength, giving good wear characteristics. The GALVANIC COMPATIBILITY of MONEL with most metals and finishes used in electronics enclosures is good.
TINNED COPPER-CLAD STEEL (or T.C.S.) (TC)
To ASTM B 501 CLASS 40 HS (NOTE: This includes the relevant parts of ASTM B227 and ASTM B33 which apply to the COPPER and TIN components) STEEL AISI 1010 57%, COPPER 40%, TIN 3%. WIRE DIAMETER 0.13mm Std.
T.C.S has the best shielding performance of all wires used in knitted meshes, combining low contact resistance with a small degree of permeability. It is not suitable for highly abrasive applications where the TIN plating may wear away to expose the copper which oxidises. The corrosion resistance of TCS is suitable for most applications and its GALVANIC COMPATIBILITY with most commonly used materials is good.
ALUMINIUM (AL)
To AMS 4187 ALLOY 5056 BS1475 5056A WIRE DIAMETER 0.13mm Std.
ALUMINIUM is primarily of benefit when it is in contact with another ALUMINIUM surface and GALVANIC COMPATIBILITY of of absolute importance. It is recommended that the ALUMINIUM wire and also the ALUMINIUM contact surface be suitable treated with a conductive non-oxidising surface coating, such as ALOCROM 1200 or equivalent.
ALUMINIUM is mechanically weak and will readily take a compression set and this combined with its readiness to form a non-conducting oxide normally precludes its use in knitted mesh gasketing
STAINLESS STEEL (SL)
To AISI 304, BS1449 304 s 14. WIRE DIAMETER 0.13 Std.
STAINLESS STEEL has very good corrosion resistance, is tough, and has excellent resistance to abrasive wear. It does have relatively poor conductivity and thus a shielding effectiveness below that of MONEL and TCS and approximately that of ALUMINIUM.
STAINLESS STEEL mesh is often used as a protective final layer over the other knitted mesh gasketing, materials on order to provide a wear-resistant contact surface.
PHOSPHOR BRONZE (PB)
Note: Other material can be knitted into gasket material but those mentioned above are by far the most commonly used with proven long term shielding and mechanical characteristics.
|
