lundi 28 juillet 2008

Technique collage : Vocabulary and technique of collage

It appears here only of the basic words which are useful in industry of the joining which can interest on a purely documentary basis the artists collagists.

- Adhesive of reaction : it is an adhesive with several components which must be mixed before the application. The preparation must be implemented during a certain lapse of time (lifespan out of pot). It also can that it is about an adhesive with only one component which reacts under the action of moisture, of heat

. - Thermofusible Adhesives : in fact adhesives are fluxed by heat before the application. Final hardness is reached by cooling and/or chemical reaction. - Adhesion: They are the intermolecular forces to the interface between material to be stuck and the adhesive preparation. - Self-adhesive Joining: this type of joining requires self-adhesive adhesives which remain sticking for a long time. In general, the adhesive preparation is coated only on one element, and the parts are stuck after drying, often under a light pressure.

- Joining a face or joining in wet phase : the adhesive preparation is applied only to one or the other of the two elements to be stuck and the elements are assembled during the period indicated

. - Cold Joining: during cold joining, the elements to be bound are assembled during opened time, at ambient temperature

. - Joining with heat : in this case there, the elements to be bound are assembled at a temperature of activation and under a pressure given. - self-adhesive: it is a process of joining for which the adhesive preparation is applied to two surfaces to stick. After complete evaporation of solvents, the two elements are assembled in pressure. The initial catch is very high

. - Adhesive containing solvents : it is an adhesive which contains the solids in dissolved preparation

. - Adhesive of dispersion : they are adhesives which contain solids, finely dispersed

. - Maximum Concentration with the site of work : by maximum concentration with the site of work, one includes/understands the highest concentrations at the place where one works of solvent vapors in the air

. - Lifespan out of pot : the lifespan out of pot is an indication concerning the adhesives with two or several components. It describes the period during which a preparation can be implemented.

- Dry Extract : the dry extract is indicated in % and represents the share of solids (they are the nonvolatile matters) of an adhesive. - Inflammability: inflammability is an indication concerning the regulations of safety and indicates the flash point or the point flash.

- Limit of explosiveness : the range in which the ignition of a vapor mixture of solvent-air can explode calls limit of explosiveness or beach of inflammability.

- Not flash : indication of the temperature to which are disengaged from the vapors in sufficient quantity to cause the formation of a detonating air-steamer mixture

. - Report/ratio of mixture : this indication defines the parts in weights which must be mixed for adhesives with several components.

- Source of ignition : in a company, there is a great potential of sources of ignition. One can quote the naked flames, the blowpipe flames, the tobacco in ignition,… There are also hot surfaces, electricals appliance

. - Open Time : this time indicates the maximum lapse of time which can pass between the gluing and the assembly of elements during joining contact.

- Viscosity : viscosity represents the rheological behavior of a matter.

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