Thursday, October 31, 2013

Quality Rubber Gaskets For Aircraft

By Kelly Wood


Rubber gaskets for aircraft are more effective when high quality standards are maintained during manufacture. Regulators have set high quality standards regarding the materials to be used, the manufacturing process and properties that the final product must have. Specifications for each gasket depend on the model of aircraft and the part where it is going to be used.

The gasket is made to handle pressure and temperature up to a particular range. The thicknesses changes from one surface to the other. Some are designed to contain liquids while others prevent leakage of air. The material used ensures that contact is streamlined to cover for the short comings of the less-than-perfect surfaces. It fills the irregularities that arise from such surfaces.

Asbestos were the preferred material to reinforce gasket products. The material effectively handles pressure and heat without losing crucial characteristics. The danger posed by asbestos results from dangerous reactions that were reported in some situations. It made them health hazards and the search for alternative material begins. The best material is one that yields to a certain extent under pressure to cover for the risk of uneven surfaces.

Mating surfaces are effective only when the joint formed is perfect. This is what a gasket does by covering for irregularities. To enhance effectiveness, a sealant is used on the surface. The use of metal to make a gasket calls for a sealant. The properties that are preferred include elasticity to ensure that it can handle the pressure without damage. Any damage would lead to loss of crucial properties.

The conditions under which a gasket is used include a lot of pressure and high temperatures. The gadgets are tested for efficacy in controlled conditions during manufacture. Physical parameters, industrial use, budget and possibility of chemical contact determine the design and properties. Sheet designs are used during mass production though it poses the danger of producing crude pieces.

Graphite is gradually replacing asbestos as the composite material for these pieces. It is fibrous and can withstand high temperatures without compromising effectiveness of changing its chemical properties. It results in pieces that are economical which makes them affordable for all industries. Use of solid materials requires heavy compressing to seal the surfaces and avoid leakage. They are advantageous since they add to the quality of the surface.

The challenges facing gasket manufacturing materials include vulnerability to oxidation. A material that is not easily contaminated is desirable as well as a soft and flexible product that can handle pressure. A spiral wound gasket is produced by adding filler material to make it fibrous. Grips tighten the surface but cannot be used in all instances. Manufacturing procedures need to factor such short comings.

The risks involved in the use of rubber gaskets for aircraft include application of uneven pressure. Leakages are likely to occur when the joint loses its stress and torque. There is a likelihood of leakage in case the surface is not smooth. Fluctuations in temperature should be factored when choosing a material for the gasket.




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