Various types of wood adhesives, depending on the desired application and type of board that is
used for this purpose. They can be classified into three main types:
Cold glue, based on PVA. Contact, generically known as neoprene.
1. Role of Formwork, Requirements for
1.1. Generalities.- The construction of the various components of reinforced concrete structures
- columns, walls, beams, roofs, etc. - Formwork required, the same as, for molds allow obtaining
forms and meas
NAME OF MATERIAL
The wood comes from trees and after logging, logs (logs) are taken to the mill where they
debarked and then cut into different ranges, this process is called sawing. Before
Debarking and chipping
Formerly descortezaba in the bush. At first it was done by debarking blades.
In some sawmills family type still used. This debarking quality is worse.
The descortezadora applies to the PTO of the tractor to debarking mountain.
PLANNING FOR SHORT
There are 4 procedures, 2 for wood chips, one for shaft and one for slope.
METHOD OF BANK
It is intended for slopes less than 25%, street width equal to the height of the trees, leaving the
wood on one side and the remains of another.
Where does the wood of the furniture? Has been extracted from sustainably managed forests?
Does FSC wood furniture? There are some annoying questions consumers should know.
Greenpeace partners know to spare. Every time we talk ove
Unit No. 1: knowledge of tools, manual carpentry, sharpening and care of them.
Unit # 2: brushed face and voice of the woods square.
Unit # 3: Knowledge of different types of wood by Application: hard, medium hard and soft.
Unit # 4: knowledge o
Useful for paths:
For the accuracy of the paths is largely the result of work done, so various tools and such as are
used; meter, rule, square, mobile squad or bevel, scriber, pencil, scribe, etc.
The brush and use:
The most common flattening, wear wood o
USE OF WOOD:
Under every form and fashion, wood, reaching use up the sawdust is industrialized.
Its general applications are 3:
In industries used in papermaking, plates, resins and gums.
The trunk raw, ie without work and just sawing, is used for rustic
Thermo adhesive flux: The heat fluxes adhesives type (known as Hot-melt), are composed of
thermoplastic synthetic resin type, which have excellent flow properties, melting and application,
plus a very good adhesion.
This type of adhesive is suitable for t
Used to attach logs and wood turning.
It is a handle with hook (perpendicular or oblique to the handle).
+ Wooden rolling to a nearby track with high slope
+ The wooden yokes in a truck.
You can also use the ax to place the wood but
Wood changes volume with changes in its moisture content, swelling and shrinking. As wood is
an anisotropic material, the change in direction of the fibers is almost negligible, being
transversely remarkable. The foundation of these dimensi
EAVES IN ARAGON
The eaves are a constant in the Aragonese popular architecture, with the passage of time
acquired a great aesthetic and artistic relevance.
Knowing that a good enhancement provides the building eaves, teachers highlighted the work of
FACTORS IN A HOLDING
The forecast performance is influenced by a number of factors.
Influences the temperature, wind and rain.
In northern Spain working with rain. In southern fail dawn until 2 pm and again at 6, not to have
Logging: refers exclusively to timber and firewood.
Within the harvesting from the tree are:
Bark: energy use and cork
Resin: is unimportant
Fruits: sometimes trade
This work can be done:
The owner: it is very unlikely to happen, because nor
PERCUSSION INSTRUMENTS NOT REFINED: These are also known by the name of
instruments of undetermined height. are rhythmic instruments that are not able to play in
different heights and therefore with them can not play melodies.
ARE INSTRUMENTS TO SUPPORT.
Family of instruments that produce sound when hit or shake them. Worldwide there are a variety
of such instruments. They are considered the oldest and have regained an important role in the
orchestra of the twentieth century.
TIME OF USE
Are conducted throughout the calendar year. From a physiological standpoint and is
distinguished climatic factors:
Coppice: we must start from if the species sprouts or not strain. If strain emerges as the ideal is
to use the end of dormancy b
OLD HOUSE IN BELCHITE
Location: C / Mayor
This wing is located in the town of Zaragoza Belchite, into the old town. Consists of a series of
courses of brick projecting on one another in progression.
At the bottom we see a row of bricks individually set (i
Michoacn is and has been a recognized timber region and the use of wood crafts is a tradition
that has been practiced since ancient times, and is currently a source of income for a large part
of the population. One of the biggest problems reg
STRUCTURE submicroscopic O ULTRASTRUCTURE OF WOOD.
In a cross section of a wood cells microscopically thicker and less distinguished lumen wall, and
with thinner and other lumen wall (wood cells fall and spring wood cells. More than 2000
increases, and ca
Freshly cut wood contains a lot of water, one third to half of its total weight. The process to
remove this water before processing is called dry wood, and is done for many reasons. Dry
wood is much more durable than fresh wood; It is much light
DENSITY AND GROSS DENSITY
In the wood distinguishes between density and bulk density. Density means the ratio of mass to
volume of wood cell cavities. The substance of the cell wall is composed of the same material in
all cells. Therefore, in all woods su
ACOUSTIC PROPERTIES OF WOOD
Sound insulation against external airborne noise: insulation materials against these types of
noise depend on its weight, increasing with increasing isolation it. The wood having a specific
gravity low is a very bad insulation,
The Postforming is a process that transforms bits and pieces of the board with straight edge
pieces of curved edge.
For postforming boards requires a prior step that consists in measuring Melamine boards strip
under the high performan
MICROSCOPIC STRUCTURE OF WOOD
If the wood is analyzed through a microscope is found that, like any living being, is constituted
by elongated cells generally arranged mostly in the shaft axis direction, without protoplasmic
content. Only a small percentage
TREE ON FOOT
They know at a glance that your wood is apt to be worked when the trunk has a regular shape,
diameter normal development, and its crust is firm, without cracks or separations; its strong
drink, especially at the top where the branches, surrou
Wooden structure of a house
These carpenters are building the wooden frame of a house. With the widespread use of steel
and concrete in building construction, the work of carpenters is limited to some family houses.
2 streaks and structure.
The drawing sh
The wood is considered as one of the renewable resources such nature, since it is possible to
plantations and regain what has been consumed.
The extent of renewal is given by the rate of growth and recovery of copies, so we should
consider more ren
This report describes laboratory experience that is made from the Nch Nch 978 and 987, which
aims to determine the Mechanical Properties of Wood, in their property Hardness and Static
Bending, respectively, with the testing of for each mechan