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CIP Level 1 Study Guide > Vocabulary > Flashcards

Vocabulary Flashcards

1
Q

Anode

A

The electrode of a cell at which oxidation occurs. Electrons flow from the anode. Corrosion occurs at the anode.

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2
Q

Cathode

A

The electrode of a cell at which reduction occurs. Electrons flow toward the cathode.

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3
Q

Cathodic Protection

A

Technique used to reduce corrosion by making the surface the cathode.

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4
Q

Corrosion

A

The deterioration of a metal that results from a reaction with its environment.

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5
Q

Corrosion Cell

A

In order for corrosion to occur, a combination of an anode, cathode, return path, and electrolyte must be present.

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6
Q

Corrosion Inhibitor

A

A chemical substance that prevents or reduces corrosion.

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7
Q

Crevice Corrosion

A

Localized corrosion that occurs in an area that is within close proximity to the surface of another material.

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8
Q

Electrolyte

A

Chemical substance containing ions that migrate in an electric field.

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9
Q

Galvanic Series

A

Metals arranged according to their corrosion potentials in a given environment.

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10
Q

Generalized Corrosion

A

Corrosion that is distributed uniformly.

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11
Q

Localized Corrosion

A

Occurs at discrete sites on the surface.

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12
Q

Mill Scale

A

The oxide layer formed during fabrication of steel.

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13
Q

Passivation

A

Reduction of anodic reaction rate in corrosion.

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14
Q

Pitting Corrosion

A

Localized corrosion confined to small area

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15
Q

Return Path

A

Metallic pathway connects the anode to the cathode allowing passage of electrons.

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16
Q

Coatings Specification

A

Formal document containing information on a project.

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17
Q

Instrument Calibration History Reports

A

Contains information on how frequently each instrument is to be calibrated.

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18
Q

Materials Inventory Reports

A

Contain information on inventory of jobsite materials.

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19
Q

Safety Data Sheets

A

Form containing data of known substances in a particular product.

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20
Q

Quality Assurance

A

Systematic process that checks if the product or service is meeting specified requirements.

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21
Q

Quality Control

A

Procedure to ensure product or service meets the requirements of the customer.

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22
Q

Quality Control Technician

A

Inspector’s role. Responsible for observing and reporting technical aspects of a coating project and its conformance or deviation from the specification.

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23
Q

Standards

A

Term for codes that provide interchangeability and compatibility. Enhances quality, safety, economy.

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24
Q

Dew Point

A

Temperature at which moisture will begin to form on a steel surface.

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25
Q

infrared thermometers

A

Devices that measure temperature using radiation emitted from objects.

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26
Q

Magnetic Surface Contact Thermometer

A

Most common instrument to determine substrate temperature.

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27
Q

Psychrometric Chart

A

Graph of the physical properties of moist air at a constant pressure.

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28
Q

Psychometric Tables

A

Booklet to determine the relative humidity and dew point temperature.

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29
Q

relative humidity

A

The ratio of water vapor pressure in a given volume of air and temperature to the amount required to saturate the air at that temperature.

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30
Q

repeatability

A

same readings under ambient and target conditions in instrument.

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31
Q

sling psychrometer

A

Measures ambient air temperature to calculate dew point and relative humidity.

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32
Q

wind speed monitor

A

instrument for deciding if conditions are appropriate for coating.

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33
Q

additives

A

components of a coating added in small amounts to perform a specific function.

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34
Q

adhesion

A

process when dissimilar molecules cling together due to attractive forces.

35
Q

barrier coatings

A

coating that has a high resistance to liquids and gases, and is applied over a base coating.

36
Q

binder

A

nonvolatile portion of coating

37
Q

inhibitive pigment

A

pigment that passivates the metal surface by forming a film or by plugging defects.

38
Q

inorganic coatings

A

binders are made from non-living things, zinc or silicone.

39
Q

organic coatings

A

binders made from once living things.

40
Q

pigment

A

particles that impart color, corrosion control, or decorative properties.

41
Q

sacrificial coatings

A

coatings that use an anodic metal to steel and corrodes preferentially.

42
Q

solvents

A

liquefies the binder to allow for application.

43
Q

acrylic

A

resin polymerized from acrylic acid, methacrylic acid, acrylonitrile, or esters.

44
Q

alkyd

A

resin formed by reaction of polyhydric alcohols and polybaseic acids, partially derived from oils or fats.

45
Q

convertible coating

A

cures by polymerization mechanisms even when solvent is involved.

46
Q

chlorinated rubber

A

earliest coating. Eliminated for high VOCs.

47
Q

curing

A

chemical process of developing the coating over a period of time.

48
Q

epoxy

A

resin formed by reaction of aliphatic or aromatic polyols with epichlorohydrin . Presence of reactive oxirane end groups.

49
Q

furan

A

resin formed by polymerization of furfuryl, furfuryl alcohol, or compounds containing furan ring.

50
Q

latex emulsions

A

coatings containing a number of different resin particles that are covered with an emulsifier to keep them apart in liquid stage.

51
Q

nonconvertible coatings

A

cure by evaporation of solvent. No chemical change to resins from liquid to solid state.

52
Q

phenol

A

organic chemical widely used also known as carbolic acid.

53
Q

thermosetting

A

coating formed by chemical cross linking reaction (oxidation polymerization, heat)

54
Q

thermoplastic

A

material capable of being repeatedly softened by heat and hardened by cooling.

55
Q

acidic cleaners

A

removes soil by chemical attack. Dissolve reaction products.

56
Q

alkaline cleaners

A

saponifies most oils and greases, washes away contaminants.

57
Q

ceramic grit

A

expensive abrasive with sharp cutting edges. effective on hard based materials.

58
Q

crushed slag

A

cheap abrasive formed by metallurgical process. copper, nickel, coal, aluminum.

59
Q

detergents

A

cleaners that function by solubilizing contaminants which can be washed away with water.

60
Q

dry grit blasting

A

air blasting that uses concentrated stream of grit projected at surface to remove rust and creates a rough surface.

61
Q

emulsion cleaners

A

cleaners sprayed onto surface and solubilize the contaminants.

62
Q

faying surfaces

A

surfaces joined to create a friction grip.

63
Q

gouges

A

sharp indentations on the substrate

64
Q

inclusions

A

non-metallic phase, such as an oxide, sulfide, or silicate particle in a metal.

65
Q

organic solvents

A

kerosine, turpentine, naphta, mineral spirits, toloul, xylol that clean the metal by dissolving grease contamination.

66
Q

pre-cleaning

A

removing all visible contaminants from the surface.

67
Q

surface lamination

A

most common surface defect. caused by rolling the steel.

68
Q

surface profile

A

anchor pattern. irregular peaks and valleys profile on bare surface from abrasive blast or power tool cleaning.

69
Q

venturi nozzle

A

450 MPH with an equal impact over the surface. Most effective for tough cleaning jobs.

70
Q

water blasting

A

use of water with abrasive included in stream.

71
Q

waterjetting

A

jetting water discharged from nozzle at pressures of 70 MPa or greater to prepare surface for coating.

72
Q

weld splatter

A

particles of molten metal produced during welding and thrown onto the surface adjacent to the weld.

73
Q

chlorides

A

salts of hydrochloric acid. chloride forms when the element chlorine picks up one elctron to form anion Cl.

74
Q

nitrates

A

salts of nitric acid with an ion composed of one nitrogen and three oxygen atoms.

75
Q

soluble salts

A

non-visible and require testing to determine presence. not soluble at all.

76
Q

sulfates

A

salts of sulfuric acid.

77
Q

BMR

A

Base metal readings. To adjust type 1 gause for surface roughness, measure blast profile of steel to be painted at a number of spots to obtain representative average value.

78
Q

DFT Gauge Type 1

A

Instruments are magnetic pull-off gauges. Force required to pull a magnet from surface determines film thickness.

79
Q

DFT Gauge Type 2

A

Electronic gauges to determine coating thickness.

80
Q

Wet film comb

A

measures film thickness. Comb is pushed into film. Thickness measure shown on gauge.

81
Q

High Voltage AC Holiday Detector

A

110V or 220V power supply. No ground wire. probe emits blue corona, attracted to any ground. Tesla coil.

82
Q

High Voltage Constant Current DC Holiday Detector

A

Holiday detection in dielectric coatings. Pass electrode over the surface. Detector emits audible sound.

83
Q

High Voltage Pulse Type DC Holiday Detector

A

ideal for moist conditions. Pass electrode over surface. Spark arcs through air gap and emits audible sound.

84
Q

Low Voltage Holiday Detector

A

Wet sponge, sensitive low voltage. Powered by battery with output of 5-120 V DC.

CIP Level 1 Study Guide (5 decks)

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