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Filler materials are particles added to binders (resin, thermoplastics, cement) to make a composite material. Filler materials improve specific properties or make the product cheaper. [1] Coarse filler materials such as construction aggregate and rebar are used in the building industry to make plaster, mortar and concrete.
Filler (materials), particles added to a matrix material, usually to improve its properties; Filler (packaging), a machine designed to fill packaging, usually occurs in food packaging; Filler metal, metal added in the making of a joint through welding, brazing, or soldering; Grain filler, a product that is used to achieve a smooth-textured wood ...
Free-flowing, most fluid of aluminium filler metals. General purpose filler metal, can be used with brazeable aluminiums in all types of brazing. For joining aluminium and its alloys. Can be used for joining aluminium and titanium to dissimilar metals; the risk of galvanic corrosion then has to be considered.
Filler alloys have a lower melting point than the base metal, so that the joint may be made by bringing the whole assembly up to temperature without everything melting as one. Complex joints, typically for jewelry or live steam boilermaking, may be made in stages, with filler metals of progressively lower melting points used in turn.
The standard for braze joint strength in many industries is a joint that is stronger than either base material, so that when under stress, one or other of the base materials fails before the joint. Silver brazing may cause defects in certain alloys, e.g. stress-induced inter-granular cracking in copper-nickel .
Soldering filler materials are available in many different alloys for differing applications. In electronics assembly, the eutectic alloy with 63% tin and 37% lead (or 60/40, which is almost identical in melting point) has been the alloy of choice. Other alloys are used for plumbing, mechanical assembly, and other applications.
An extension on the brush building idea is the wattle and daub process in which clay soils or dung, usually cow, are used to fill in and cover a woven brush structure. This gives the structure more thermal mass and strength. Wattle and daub is one of the oldest building techniques. [7]
The fishcam is a particularly widespread form of filler in this tradition. Anime series sometimes need to include filler arcs, as televised anime episodes are generally published at a higher rate than the manga chapters from which many anime draw their source material. Notable anime to feature large amounts of filler include Naruto and Bleach. [3]