Frame materials

Question 1

How are cellulose acetate, nitrate and acrylic made?

Answer 1

Routed

Question 2

How are cellulose propionate, spx, opytyl, TR90, carbon nylon made?

Answer 2

Injection Moulded

Question 3

How is shell made

Answer 3

Handmade

Question 4

How is titanium and flexon made?

Answer 4

Laser soldered

Question 5

How is stainless steel made?

Answer 5

welded

Question 6

How is rolled gold made?

Answer 6

Gold layer bonded to a core metal base

Question 7

How is plated metal and nickel silver made?

Answer 7

Soldered

Question 8

How is aluminium made?

Answer 8

Riveting

Question 9

What does the colour extruded mean?

Answer 9

solid colour, that is the sheets original colour

Question 10

what does the colour dyed mean?

Answer 10

Part is transparent

Question 11

What does the colour laminated mean?

Answer 11

Like cheese on toast, colour lays on top of eachother

Question 12

what colour is shell?

Answer 12

it’s own natural shell (brown) colour

Question 13

Which frames have a colour - electro plated

Answer 13

Stainless steel, plated metal, and nickel silver

Question 14

Which frames have a colour of galvanised?

Answer 14

Titanium, flexon

Question 15

How to tell what acetate is

Answer 15

Rigid, thick, hard and heavy

Question 16

how to tell what Cellulose nitrate is

Answer 16

ILLEGAL, it will be a yellow plastic frame

Question 17

how to tell what acrylic is

Answer 17

Upswept and supra, usually laminated

Question 18

how to tell what cellulose proprionate

Answer 18

light plastic, flexible

Question 19

how to tell the difference between acetate and proprionate

Answer 19

acetate is heavier and less flexible

Question 20

how to tell what SPX is

Answer 20

will be marked spx

Question 21

What are the 3 manufacturing facts to mention

Answer 21

Manufacture, joints and colour

Question 22

how to tell what optyl is

Answer 22

there will be a ~sign or scratched off or only half metal sides inside plastic

Question 23

how to tell what TR90 is

Answer 23

high transparency and no reinforcement in the side

Question 24

how to tell what the difference between proprionate and TR90

Answer 24

tr90 has more flexible side as no reinforcement inside

Question 25

how to tell what carbon nylon

Answer 25

Plastic front and metal side, sides are lacquered on to match colour of front

Question 26

how to tell what shell

Answer 26

they have two silver joints and highly polished

Question 27

how to tell what titanium

Answer 27

light weight and flexible

Question 28

how to tell what stainless steel

Answer 28

metal blocks on bridge

Question 29

how to tell what rolled gold frame looks like

Answer 29

there is a Karat (amount of gold) marking e.g.1/10 12K or 12m/m

Question 30

how to tell plated metal

Answer 30

cheap and colour will wear off

Question 31

how to tell what flexon

Answer 31

tubes on the bridge, flexible light weight and strong

Question 32

how to tell what aluminium

Answer 32

cold and rigid

Question 33

how to tell what nickel silver

Answer 33

dull silver

Question 34

What adjustment facts can be mentioned

Answer 34

sides, temp of adjustment , what happens when adjust, write non-flammable for plastic

Question 35

What plastic frames do not have fully reinforced sides

Answer 35

acrylic, Optyl, TR90, shell

Question 36

what happens to acetate when heated

Answer 36

warps easy, non flammable 57

Question 37

how to know, how a metal frame can be repaired

Answer 37

it is the same as manufacture

Question 38

what happens to cellulose nitrate when heated

Answer 38

flammable! 65 is soft point, 70 is flash point

Question 39

what happens to acrylic when heated

Answer 39

if over heat will blister, temp= 68

Question 40

what happens to cellulose proprionate when heated

Answer 40

warps easily, temp = 67 and non flamm

Question 41

How to adjust SPX

Answer 41

Cold glaze, shrinks if heated, softens at 95

Question 42

Which frames are cold glaze adjusted

Answer 42

SPX, TR90 and carbon nylon

Question 43

How is shell adjusted

Answer 43

in steam and it can be repolished

Question 44

How is optyl adjusted

Answer 44

softens at80-120, heat until sloppy then hold till stiff

Question 45

Which materials are corrosion resistant

Answer 45

Titanium, stainess steel, flexon,

Question 46

How can most metal frames be adjusted

Answer 46

using 1/2 covered and pad pliers

Question 47

What does general type state

Answer 47

Gender - style - material

Question 48

what side option

Answer 48

Curl or drop end side

Question 49

Bridge types

Answer 49

regular (no pads) , fixed pad (pads) , keyhole ,adjustable pads on arms

Question 50

Joint types

Answer 50

pinned, heat inserted, screwed, injected | soldered, laser soldered, welded, riveted

Question 51

Lens retention

Answer 51

Plastic: sprung in metal: closing block joint Supra: nylon cord fitting into supra groove Rimless: drilled and plugged or screwed

Question 52

Edge finish

Answer 52

Plastic and metal: bevel edge Supra: Supra groove rimless: flat edge