In this work we had to build a tangram is a game of Chinese origin who has 7 pieces (see
drawing). Serves to form hundreds of different figures alone with his 7 pieces.
We used about three days to do so. We had to use the following mate
The set of organic tissues that form the bulk of the trunks of trees, stripped of bark and leaves.
Pith: central part of the trunk. Consisting of loose and porous fabric. It is the starting medullary
rays towards the periphery.
DRYING OF WOOD
It has been proven that the wood dries improve their technological properties, which is why
virtually all woods receive a fitness before use. Water removal due to various purposes, some of
which are essential to ensure the goo
IMPORTANCE OF MOISTURE CONTENT OF WOOD
Hygroscopic within the range (0 to 30% CH), influences significantly the following properties:
Flexural strength: The wood resists efforts in axial direction.
For testing of samples are available in the form of prism. Consider the radial and tangential
directions as resistant to bending, however if the piece is cut so that the length is the axial
Wood is a hard, fibrous material beneath the crust is forming the body of the trees. This consists
of millions of microscopic and longitudinal cells into tubes.
COMPOSITION OF WOOD
In average composition comprises 50% carbon (C), 42% of oxygen (O),
Oil is a liquid mixture of compounds orgnicos.Su composition varies greatly according to the
site, although it is always a very complex mixture in which the main constituents are
Petroleum refining - essential for obtaining process u
Transport: The 2nd phase and wherein the timber is transported from place to cut the mill and at
this stage depend much as the topography and insfrastuctura there.
Usually done by pulling animals or machines but there are cases where there is a river near
It is the set of operations to split a log, squared or not, by any means. Can be longitudinally.
Influences the trunk section and type of wood.
Boreal: This is the simplest. We frame taking advantage of everything the trunk. A piece calle
As a consulting firm was commissioned us to verify a shelf that will be used to place on it a
sculpture, all framed in the celebration of the bicentennial of independence of our country Chile.
To verify that the shelf bear the burden of 1.5 Kg ,