bgas practical pictures

8/14/2019 Bgas Practical Pictures

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Copyright © 2003, TWI Ltd World Centre for Materials Joining Technology

Identification: Copper Slag ABRASSIVE

IT IS A

EXPENDABLE ABRASSIVE.

USE ONLY ONETIME.

It is a NONMETALLIC ABRASSIVE




B.G.A.S. PAINTING INSPECTION

Identification: Contaminated Copper Slag Abrasive

MUST NOT BE RE- USED.




Identification: Garnet Abrasive

This abrasive is

expendable or re- usebale afterrecycling.

MUST BE CLEANED

BEFORE RE-USE

It is a mineralabrasive




Identification: Metallic Grit

This abrasive isexpendable or re-

usable afterrecycling.

MUST BE CLEANEDBEFORE RE-USE

It is a metallicabrasive




Identification: Shot Abrassive

This abrasive isused in enclosedsystem such as

wheelabrator/Automaticblasting.

Can be reused

after cleaning.

It is A metallic Abrasive.




Identification: Grit & Shot Mixed Abrasive (80%Shot+20% Grit)

This mixture ofabrasive is used inenclosed blasting

system like automaticblasting machine.

Grit cuts the profile,shot controls the

peaks.

This is metallic

abrasive.


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Identification: Walnut Shell Abrasive

This abrasive is notused for steel.

This abrasive isagricultural type.



Identification: Screens for Abrasive sieve analysis

BS 410 Standard is followed for testing



Identification: SURFACE PROFILE NEEDLE GAUGE

SET THE GAUGE AT ZERO

BY APPLYING PRESSUREON THE FOOT ON A FLATSMOOTH GLASS PLATE.



Identification: Dial Micrometer & Replica Tape



Identification: DIAL MICROMETER AND REPLICA TAPE



Identification: SURFACE PROFILE ASSESSMENT OMPARATOR

Standard followed for the Test is BS 7079 Pt C



RUST GRADES



BLASTING GRADES A Sa 2.5 and Sa 3



BLASTING GRADES B Sa 1 and Sa 2




BLASTING GRADES C Sa 2.5 and Sa 3




BLASTING GRADES D Sa 1 and Sa 2




BLASTING GRADES D Sa 2.5 and Sa 3




B.G.A.S. PAINT INSPECTION

Identification: Hypodermic Needle Gauge

MEASURING PRESSURE AT THE NOZZLE

INSERT THE NEEDLETHROUGH THE HOSEWITH THE NEEDLE

TOWARDS THE NOZZLE, AT AN ANGLE OFapproximately 45DEGREES




Identification: pH indicator Paper, it is used for SURFACE PREPARATION, CHEMICAL CLEANING

pH INDICATORPAPERS, USED TOMEASURE ACIDITY

OR ALKALINITY OFTHE SUBSTRATE AFTER FINAL WASH.FOR B Gas THEFIGURE SHOULD BEBETWEEN 4.5 and 7






Below Tests are Quantitative test used for testinghygroscopic saltsIdentification: MERKOQUANT TEST Identification: Bressel Sample Patch




Identification: SALTS DETECTION, BRESLE SAMPLE PATCH KIT





PAINT TESTINGIdentification: Density or Specific Gravity (SG) Cup with 100cc size





PAINT TESTINGIdentification: Hegman Grind Gauge

This Gauge is used for FINENESS OF GRIND, DEGREE OF DISPERSION




Identification: Rotational Viscometer with

rotothinner.

This equipment measure Dynamic Viscosity.

Its unit is in Poises




Identification: Ford Flow Cup Number 4 this equipment is used to measure flow viscisity.

4 means it has 4mm dia hole .





Identification: Ford Flow Cup




Identification: Eccentric Wheel

This equipment is used to measure WFT (Wet Film Thickness)





Identification: Comb Gauge

It is used to measure WFT




All Below Equipments are Used to measure DFT and isCalled Digital/ELECTRONIC DFT GAUGES

Also Called Non-Destructive Gauge

Identification: ELECTROPHYSIC MINI TEST Identification: The Exacto Identification: ELCOMETER 456




Identification: The Tinsley Pencil

This equipment is used to measure DFT and it has magnet

THE TINSLEY PENCIL





Identification: Horse Shoe Gauge

This equipment is used to measure DFT, it has a magnet





Identification: Banana Gauge

This equipment is used to measure DFT has a magnet, Model 211





Identification Plastic Shim for DFT measurement

PURPLE 25um

BLUE 50um

BROWN 125um

WHITE 250um

YELLOW 500um

nominal values





Identification: Conical Mandrel

This equipment is used for Flexibility Test





Identification: Bollotini Test for Drying & Curing

TRAVERSE

GRADUATED IN HOURS OF TRAVERSE





Identification: BK DRYING TIME RECORDERS

Used for DRYING AND CURING TESTS.




B.G.A.S. PAINTING INSPECTIONIdentification: MECHANICAL THUMB TEST, THROUGH DRYING





Identification: WOLFF- WILBORN PENCIL SCRATCH TEST





Identification: THE PFUND CRYPTOMETER for Opacity Test

G S G S C O





Identification: Hiding Power Chart

B G A S PAINTING INSPECTION





DEGREE OF GLOSS

MEASURED WITH A GLOSSMETER, ( REFLECTOMETER )

GLOSS CAN BE AFFECTED BY

1. PIGMENT VOLUME CONCENTRATION

2. FINENESS OF GRIND PARTICLE SIZE

3. RESIN TYPE

4. REFRACTIVE INDEX

5. SOLVENT TYPE






PAINT TESTING . ADHESIONIn adhesion Test There are three failure is recorded as

follows:

1. PRIMER TO SUBSTRATE FAILURE

2. INTERCOAT ADHESION FAILURE

3. COHESIVE FAILURE





Identification: CROSS CUT ( CROSS HATCH) TEST for Adhesion

Cut 6 lines vertical and

6 horizontal, 25 x 2mm

squares. Apply tape, pull off and compare for

% area of detachment .

Standard BS 3900 Pt E6is followed to do thetest.






Identification: Special Cutter tools for CROSS CUT ( CROSS HATCH ) Adhesion Test






Identification: THE DOLLY TEST for adhesion






Identification: THE HYDRAULIC ADHESION TESTER






Identification: WHIRLING HYGROMETER






WHIRLING OR ASPIRATED HYGROMETER

PRE-USE CHECKLIST

IS THERE A WICK

IS THE WICK CLEAN

IS THE WICK WET, MUST BE DISTILLED WATER

IS THE WICK FASTENED AROUND THE BULB NECK

IS THE MERCURY IN A CONTINUAL , UNBROKENSTREAM, IF NOT , RECTIFY BY PULLING BACK WITH A MAGNET






Identification: DEW POINT CALCULATOR for weather condition






Below Gauges are for steel temperature measurement

Identification: Magnetic Lympet Gauge Identification: Thermocouple






Identification: CATHODIC DISBONDMENT TEST






Identification: High Voltage Holiday Detector

Used for holiday or pinhole detection, operates up to 5Kv





B.G.A.S. PAINTING INSPECTIONIdentification: Wet Sponge Holiday Detector

This equipment is used for holiday or pinhole detection

VOLTAGE RANGE 3TO 90v.INTERMEDIATE

67.5v.

Sponge is wetted inwater with a drop ofdetergent, excess

squeezed out, then passed methodicallyover the substrate





PAINT FAULTS Name: BLEEDING






PAINT FAULTS Name: BLISTERING






PAINT FAULTS Name: CHALKING





PAINT FAULTS Name: CRACKING






PAINT FAULTS Name: CRATERING

BOWL SHAPEDDEPRESSIONS. CAUSED

BY ESCAPING SOLVENTOR GASES. PAINT IS OFTOO LOW A VISCOSITYTO FLOW AND FILL THEDEPRESSIONS






PAINT FAULTS Name: CURTAINS, SAGS, RUNS AND TEARS






PAINT FAULTS Name: FLAKING






PAINT FAULTS Name: HOLIDAYS






PAINT FAULTS Name: LIFTING




B.G.A.S. PAINTING INSPECTIONPAINT FAULTS Name: WRINKLING AND RIVELLING






HEALTH AND SAFETY, COSHH REGULATIONS

ABBREVIATIONS

EH 40, GUIDANCE NOTES, HEALTH AND SAFETY EXECUTIVE

MEL , MAXIMUM EXPOSURE LIMIT

OEL, OCCUPATIONAL EXPOSURE LIMIT

OES, OCCUPATIONAL EXPOSURE STANDARD

LEL, LOWER EXPLOSIVE LIMIT

UEL,UPPER EXPLOSIVE LIMIT

RAQ, REQUIRED AIR QUANTITY





Identification: DRAGER TUBE AND BELLOWS

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