Wood is one of the basic materials that man exploits
in several areas of his life. For thousands of years, it has provided man with
a solution to many needs. It teaches man how to extract fruits, shade and
shelter from trees, and how to form wood and replant trees for the future.
The tree is the root of wood. Renewed sow then
reap
Trees cover one fifth of the world's land area.
The growth of trees increases in temperate and cold regions such as Russia,
Finland, Canada and tropical areas such as Brazil, Malaysia and Gabon
Softwoods or conifers come from cold and
temperate regions while hardwoods such as mahogany and teak grow in the tropics.
Soft trees grow at a faster growth rate than
hard trees.
Leaves of tropical trees are mostly larger and
tend to be dark in color.
Soft wood is used in construction and making ordinary furniture and hard
wood is used in luxury furniture.wood uses
- Construction:
In some regions of the world houses are built of
wood, and doors and windows are often made of it
Wood is still the preferred material for making home and office furniture, such as beds, chairs, tables, cabinets, and others
Fuel:
Wood is used by igniting it directly by first
converting it into charcoal, as happens in the Blue Nile State, for example
Paper:
The basic material for the manufacture of paper is wood, and after the invention of printing, the consumption of wood increased and the rate of
cutting down trees increased.
. Timber techniques
Converting the tree into commercial lumber
Wood intervention in advanced technical
industries. In order for these industries to continue, trees must be planted to
replace the trees that have been cut down. Techniques extend to cutting,
transportation, sawing, storage and pest control, and end with final industries
such as the furniture industry.
Manufactured wood
Wood prices are rising due to the increase in its
consumption.
This prompted the technicians to make maximum use of
the ore, branches, small pieces, and saw waste, which were thrown as waste.
This led to thinking about the optimal independence of these woods and the
reuse of waste, and various types of uses emerged, including:
Thin wood panels
Thin planks (1-2 mm) of expensive wood are used to
cover cheap or manufactured wood. In this way, the furniture acquires a
beautiful look, and an example of that is covering with tacks wood.
Multilayer
panels
Like plywood,
we can create a new material that is more flexible than the regular wood from
which the panels are made.
compressed
wood
It is made
from wood waste, small pieces, and sawdust, and is fixed with special glue. It
is used in the invisible parts of furniture and partitions
Wood powder
boards
Wood waste is
processed and converted into powder, then mixed with special glue and used in
the furniture industry. It comes covered with real or industrial thin wood
panels.
Effects of
wood industries and their damages
The rate of
cutting trees is faster than the rate of growth of new trees, which leads to
the displacement of animals that lived in the forests if the cutting continues
to destroy the environment
The large
increase in the prices of printing newspapers and books increased the number of
trees cut down for the paper industry, turning forests into deserts.
Pollution of
rivers near paper mills due to the dumping of chemicals used in washing and
bleaching paper
The coal
industry in the south of the Blue Nile and other states caused the
desertification of those areas, the disappearance of vegetation, a change in
its nature, and soil erosion.
How do we
minimize these damages?
1- Monitoring
forests and rationalizing their use
2- Planting
more forests
3- Monitoring
paper mills and preventing them from polluting rivers and the air
4-
Encouraging paper mills to reuse newsprint in making new paper
5- Reducing dependence
on coal in homes and using natural gas instead
Carpentry
tools
Carpentry is
the technique of converting cleaned wood into furniture and wooden crafts
The right
tools make the job easier
Measurement
tools
Four-fold
wood plank
Steel ruler
Tape measure
Mark or
scratch tool
It has a
sharp tip that is used to make a mark on the wood to determine the position of
the cut
Chisel
There are
different types of chisels and the most commonly used is the cutting chisel
Right angle
Used to draw
perpendicular and parallel lines or review the surfaces of artifacts
Thank you mr amier
ردحذفwelcome mujahid
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