Metal - Finishes

Question 1

general process for finishign metals

Answer 1

degreased
and
cleaned

Question 2

exampel fo metal alloy that no need finishign

Answer 2

aluminium

Question 3

why does steel need finsihign

Answer 3

pourrous outer layerm leadign to rust

Question 4

paints for metals

Answer 4

celluose and acrylic pains

Question 5

when woudl painst be used on emtals

Answer 5

when ow cost

Question 6

how will painst be applied

Answer 6

material cleaned
degreased
primer coat
then spray or brush

Question 7

what do metal paints give

Answer 7

colour
textured finsih
barrier against corrision
special graphic affects

Question 8

what is electroplatign

Answer 8

involvex coating n object with thin layer of metl using electricity

Question 9

what is galvansing

Answer 9

dip coatign with zinc

Question 10

metals for electro platin

Answer 10

silver
gold
copper
zinc
tin

Question 11

how electroplatign and galavnsign work

Answer 11

product and donor metla placed in cotnainer with electrolyte solution
current passed
prudtc attracts donor metal

Question 12

what does electroplatign and galavansign do

Answer 12

protectiev layer
hardwear finish
enchance astehetics
sacrifical layer
corrisve reistance

Question 13

polymer dip coating , how doen

Answer 13

heated emtal
dipped itno polymer powder with air flowing
product removed
powder stes
air flow helsp ste evenely

Question 14

where woudl polymer dip coatign be sued

Answer 14

coat hangers
kicthen dish drainers
oatdoor play equip

Question 15

what does dip coatign do (polymer)

Answer 15

protectiev barrier against corrosion
added protection
corrsive restance

Question 16

what is metal dip coating

Answer 16

metal coated by dipping product in tank of molten metla

Question 17

what does metal dip coating do

Answer 17

corrsion restance

Question 18

when will tin platign be used

Answer 18

food cans

Question 19

when would zinc platign be used

Answer 19

beams
gates
animal pens
firts layer on carb bodies

Question 20

how powder coatign done

Answer 20

product neagtivelly charged
thermoset polymer + charge
air grun spray
charges attact
product baked
powder melts

Question 21

what does powder coatign give

Answer 21

corrisionr etsance
aethetic appeal

Question 22

when woudl pwoder catign be used

Answer 22

washign machien boides
fridges
gates

Question 23

beenfits of pwoder coatign to painting

Answer 23

more hard wearing

Question 24

how sealents applied

Answer 24

with cloth or pad
film produced
film cured
then buffed

Question 25

what are tough polymer absed sealnets used for

Answer 25

prevent tarnish
prevent decay

Question 26

when may sealents be used

Answer 26

in automatiev industry
against wethaer
road salts
insects

Question 27

when anodising used

Answer 27

aluminium products

Question 28

why anodising usd

Answer 28

enchacne alumiunium natrual oxide layer
hardness
toughness
colour

Question 29

where anodisign usd

Answer 29

outer torch cases
hardrive casings
mobile phoen cases

Question 30

how can andosied products be finished

Answer 30

with clear lacquer
or varnish to seal and provide hfuther protection against scratches and shit

Question 31

how andosied work

Answer 31

aluminium part in electrolyte bath with cathode
electric current in batj
oxygen form on ruface of anode
metal film grow on alumnium

Question 32

when is chrome platign used

Answer 32

nath taps
wheel rims
car parts

Question 33

when is gold platign used

Answer 33

jewlery
pcb

Question 34

when is silver palting used

Answer 34

jeweery
cutlery
msuicla isntrumnets