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Niamh Cullen Tech Y8 nails, glue and wood
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Nails:
What are they normally made from? Name 3 types and say what they're used for.
Nails are normally made form
mild steel.
Three types
:
ROUND WIRE - for cheap constuction work
OVAL WIRE - for better quality work
PANEL PIN - for fixing thin sheet material
Nails:
What's the main difference between Round Wire nails and Oval Wire nails?
The heads in Oval nails can be hammered in below the surface, whereas the heads of Roundwire nails cannot.
Nails:
What is a nail punch used for?
To punch nails in below the surface.
Glues:
What does
PVA
stand for?
Poly vinyl acetate.
It's a white creamy glue and is the most commonly used type of glue.
Glues:
When using
PVA
to glue joints together, why do you need to wipe off excess glue with a paper towel?
Because it's very difficult to remove once it's set (after about 4 hours).
Glues:
What are the two types of PVA?
Waterproof and non-waterproof PVA
Glues and nails:
What's the process for joining two pieces of wood together using glue and nails?
1. hold one piece securely in a vice
2. get the nails started in the other piece of wood
3. put a THIN LAYER of glue on both touching surfaces
4. position and hammer in the nails
5. wipe off any excess glue
Woods:
Name the three types and state where they come from.
Hardwood - comes from broad-leaf decidious trees eg OAK, ELM
Softwood - comes from conifer trees.
Manufactured - from factories!
Woods
:
Name the four types of manufactured board.
plywood
blockboard
chipboard
hardboard
Woods:
What is
plywood
and what is it used for?
Plywood
is made by sticking "veneers" together.
It's used for
toys
and the
bottoms of drawers.
Woods:
How is
blockboard
made and what is it used for?
Blockboard
is made by sticking many thin layers of softwood side by side, then sticking a thin veneer on each side.
It is used for making
modern furniture
.
Woods
:
How is
chipboard
made and what is it used for?
Chipboard
is made by gluing thousands of tiny bits of wood.
It is used with a front veneer for
kitchen cupboards
.
Woods
:
What is
hardboard
and what is it used for?
Hardboard
is made by gluing and compressing pulped wood.
It is used for large areas like the
backs of cupboards
.
Woods:
Name two types of
hardwood
and give example of uses.
Mahogany
hardwood - used for high quality furniture
Beech
hardwood - used for workbenches.
Woods:
Name two types of
softwood
and give example of their uses.
Redwood
- honey colour - house roofs and window frames
Parana pine
- pale yellow - staircases.
Woods:
What is the purpose of seasoning wood?
To clear out water from the tree.
Woods:
How is the age of a tree found?
By counting it's annual rings.
Author
Anonymous
ID
58761
Card Set
Niamh Cullen Tech Y8 nails, glue and wood
Description
y8 tech nails glue and wood
Updated
2011-01-09T14:42:07Z
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