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CM 2112 > Coating Voab > Flashcards

Coating Voab Flashcards

1
Q

A treatment for the removal of rust and mill scale from steel by immersing it in an acid solution containing an inhibitor. Pickling should be followed by thorough washing and drying before painting.

A

Acid pickling:

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2
Q

A process of atomizing paint by forcing it through an opening at high pressure. This effect is often aided by flashing (vaporization) of the solvents, especially if the paint has been previously heated.

A

Airless spraying:

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3
Q

(1) Having properties of an alkali. (2) Having a pH greater than 7.

A

Alkaline:

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4
Q

A coating consisting of a mixture of metallic aluminum pigment in powder or paste form dispersed in a suitable vehicle.

A

Aluminum paint:

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5
Q

A film on a metal surface resulting from an electrolytic treatment at the anode.

A

Anodic coating:

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6
Q

A coating, composed wholly or partially of an anodic metal (in sufficient quantity to set off electrochemical reaction), which is electrically positive to the substrate to which it is applied.

A

Anodic metallic coating:

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7
Q

Forming a conversion coating on a metal surface by anodic oxidation; most frequently applied to aluminum.

A

Anodizing:

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8
Q

A coating used for preventing the corrosion of metals which has been specially formulated to prevent the rusting of iron and steel.

A

Anticorrosion paint or composition:

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9
Q

The nonvolatile portion of the liquid vehicle of a coating.

A

Binder:

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10
Q

Asphalt or tar compound used to provide a protective finish.

A

Bituminous coating:

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11
Q

Cleaning and roughening of a surface (particularly steel) by the use of a metallic or nonmetallic abrasive that is propelled against a surface by compressed air, centrifugal force, or water.

A

Blast-cleaning:

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12
Q

The formation of swellings on the surface of an unbroken paint film by moisture, gases or the development of corrosion products between the metal and the paint film.

A

Blistering:

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13
Q

Whitening and loss of gloss of a usually organic coating caused by moisture.

Application of a coating by means of a brush.

A

Blushing:

Brushing:

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14
Q

Paint supplied in dry powder form, based essentially on Portland cement, to which pigments are sometimes added for decorative purposes. This dry, powdered paint is mixed with water immediately before use.

A

Cement paint:

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15
Q

A coating developed on a metal surface by a high-temperature diffusion process (as carburization, calorizing, or chromizing).

A

Cementation coating:

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16
Q

A protective or decorative coating that is produced deliberately on a metal surface by reaction of the surface with a chosen chemical environment.

A

Chemical conversion coating:

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17
Q

A coating in which the binder or vehicle is a combination of coal tar and epoxy resin.

A coating in which the binder or vehicle is a combination of coal tar with a polyurethane resin.

A

Coal-tar epoxy coating:

Coal-tar urethane coating:

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18
Q

A number of coats separately applied in a predetermined order at suitable intervals to allow for drying or curing.

A

Coating system:

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19
Q

A liquid, liquefiable, or mastic composition that has been converted to a solid protective, decorative, or functional adherent film after application in a thin layer. A coating is an electrical insulating covering applied to a metal surface as passive protection against external corrosion.

A

Coating:

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20
Q

Two or more paints or varnishes that can be mixed without producing any undesirable effects such as precipitation, coagulation, or gelling are said to be compatible. Different coats of paint that can be associated in a painting system or other coating systems without producing undesirable effects are also compatible.

A

Compatible:

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21
Q

A coating consisting of a compound of the surface metal, produced by chemical or electrochemical treatments of the metal.

A

Conversion coating:

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22
Q

The separation of metallic material from an attacking medium by paint or coating.

A

Corrosion protection:

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23
Q

The temperature at which moisture will condense.

A

Dew point:

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24
Q

instruments consist of magnetic gauges that measure the thickness of a dry film of a nonmagnetic coating applied to a magnetic substrate.

A

DFT measurement:

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25
Q

A chromate conversion coating produced on magnesium alloys in a boiling solution of sodium dichromate.

A

Dichromate treatment:

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26
Q

The application of metallic coating, the chemical composition of which was modified by diffusing this at the melting temperature into the substrate.

A

Diffusion coating:

27
Q

The time required for an applied film of coating to reach the desired stage of cure, hardness, or nontackiness.

A

Drying time:

28
Q

Severe loss of ductility of a metal (or alloy).

A

Embrittlement:

29
Q

A substance composed of a specially processed coal-tar pitch or bitumen, combined with an inert mineral filler.

A

Enamel:

30
Q

Destruction of metals by the abrasive action of moving fluids accelerated by the presence of solid particles in suspension.

A

Erosion:

31
Q

Test the adhesion of the coatings after application.

The final coat in a painting system.

A

Field adhesion testing:

Finish coat (topcoat):

32
Q

The impingement of an intensely hot flame to the surface of structural steel, resulting in the removal of mill scale and the dehydration of any remaining rust, leaving the surface in a condition suitable for wire brushing, followed by the immediate application of paint.

A

Flame cleaning:

33
Q

Thermal spraying in which coating material is fed into an oxyfuel gas flame, where it is melted.

A

Flame spraying:

34
Q

Material used during welding, brazing, or braze welding to clean the surfaces of joints, prevent atmospheric oxidation, and to reduce impurities.

A

Flux:

35
Q

The application of a coating of zinc to steel by a variety of methods.

A

Galvanizing:

36
Q

To produce a zinc-iron alloy coating on iron or steel by keeping the coating molten
after hot-dip galvanizing until the zinc alloys completely with the base metal.

A

Galvanneal:

37
Q

A discontinuity in a coating (such as porosity, cracks, etc.) that allows areas of base metal to be exposed to any corrosive environment that contacts the coated surface.

A

Holiday:

38
Q

The paint intended to be used between the primer and topcoat in a paint system.

A

Intermediate coat (undercoat):

39
Q

Leakage resistance of pipe or resistance of pipe radially to remote earth.

A

Leakage or coating resistance:

40
Q

Includes hand cleaning and power tool cleaning.

A

Manual cleaning:

41
Q

The person, firm, or corporation that manufactures and provides the coatings
under the provisions of relevant standard.

A

Manufacturer:

42
Q

Application of a spray coat of metal (usually zinc or aluminum) onto a prepared surface.

A

Metal spraying:

43
Q

One or more layer of metal on a steel base (base material).

A

Metallic coating:

44
Q

the term used for the surface oxides produced during hot rolling of steel. It breaks and flakes when the steel is flexed and paint applied over it may fail prematurely.

A

Mill scale:

45
Q

Being or composed of hydrocarbons or their derivatives, or matter of plant or animal origin.

A

Organic:

46
Q

Any pigmented liquid, liquifiable, or mastic composition designed for application to a substrate in a thin layer that is converted to an opaque solid film after application. Used for protection, decoration, or identification, or to serve some other function.

A

Paint:

47
Q

A coating (usually green) that forms on the surface of metals, such as copper and copper alloys, exposed to the atmosphere.

A

Patina:

48
Q

Forming an adherent phosphate coating on a metal by immersion in a suitable aqueous phosphate solution.

A

Phosphating:

49
Q

A form of chemical and electrolytic removal or loosening of mill scale and corrosion products from the surface of a metal in a chemical solution (usually acidic). Electrolytic pickling can be anodic or cathodic, depending on the polarization of metal in the solution.

A

Pickle / pickling:

50
Q

A solution, usually acid, used to remove mill scale or other corrosion products from a metal.

A

Pickle:

51
Q

Deposition on critical areas of metal coatings resistant to wear and abrasion, by means of a high-velocity, high-temperature ionized inert gas jet.

A

Plasma plating:

52
Q

A thermal spraying process in which the coating material is melted with heat from a plasma torch that generates a nontransferred arc: i.e., molten coating material is propelled against the base metal by hot, ionized gas issuing from the torch.

A

Plasma spraying:

53
Q

Usually refers to the chemical treatment of unpainted metal surface before painting.

A

Pretreatment:

54
Q

The first complete coat of paint of a painting system applied to a surface.

A

Primer:

55
Q

The rapid cooling of metals (often steel) from a suitable elevated temperature. This generally is accomplished by immersion in water, oil, polymer solution, or salt, although forced air is sometimes used.

A

Quenching:

56
Q

The component of either a liquid or solid solution that is present to a greater or major extent; the component that dissolves the solute.

A

Solvent:

57
Q

A method of application in which the coating material is broken up into fine mist that is directed onto the surface to be coated.

A

Spraying:

58
Q

Any method of treating a surface to get it ready for painting.

A

Surface preparation:

59
Q

A primer containing solvent and whose base consists of resins and synthetic plasticizers.

A

Synthetic primer:

60
Q

A group of coating or welding processes in which finely divided metallic or nonmetallic materials are deposited in a molten or semimolten condition to form a coating. The coating material may be in the form of powder, ceramic rod, wire, or molten materials.

A

Thermal spraying:

61
Q

An intermediate coat used to bond different types of paint coats; used to improve the adhesion of succeeding coatings.

A

Tie coat:

62
Q

The process of coating metal with a very thin layer of molten solder or brazing filler metal.

A

Tinning:

63
Q

Blast-cleaning of metal using high-velocity water with or without the addition of an abrasive.

A

Water-blasting:

CM 2112 (12 decks)

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