DIVISION 5: Metals Flashcards
This are substances all of which are crystalline when solid and many of which are characterized by opacity, ductility, and unique luster when freshly fractured
METAL
It is a forming process of metal which produces new cross section of the material while improving its mechanical properties through the use of rotating rolls
ROLLING
It is a method of forming metal that is controlled, plastic deformation or working metals into predetermined shapes by means of pressure or impact blows or both
Forging
This is a metal forming process involving pulling a workpiece through a die providing reduction of the cross section of the workpiece
DRAWING
This metal forming process is also known as pressing which uses variety of sheet metal forming manufacturing processes.
STAMPING
This metal forming process that shapes the material by forcing it to flow through a shaped opening in a die and emerges as an elongated piece with the same profile as the die
EXTRUSION
This metal forming process involves pouring liquid metal into a mold, which contains a hallow cavity of the desired shape and them allowing it to cool and solidify
CASTING OR MOLDING
A type of metal that is silvery non magnetic and soft, also characterized by it light weight, low melting point, high thermal and electrical conductivity, and moderately high coefficient of expansion
ALUMINUM
It is an accelerated corrosive action that takes place when dissimilar metals are in contact in the presence of an electrolyte
GALVANIC ACTION OR GALVANIC CORROSION
Term refers to the protective coating (cladding) applied, primarily for corrosion resistance, to thin sheets of an alloy whose corrosion resistance is decreased by the constituents added to give strength
ALCLAD
Types of aluminum used for roofing, flashing gutter, etc.
ALUMINUM SHEET AND STRIP
It is a type of aluminum that is rolled to a thickness of 0.005” and is used mainly for thermal insulation and vapor barriers
ALUMINUM FOIL
It is a type of aluminum that is rigidized sheet fabricated of special aluminum alloy specifically developed for roofing and siding purposes
CORRUGATED ALUMINUM
It a type of aluminum that is use as a structural material, extruded therefore can be produced economically to meet the specified structural design requirements
STRUCTURAL ALUMINUM
Type of aluminum that are pre fabricated units which are generally manufactured on modular or non modular window width dimensions for the exterior of buildings
ALUMINUM PANELS
Type of aluminum that comprises a system of construction called skin construction
SANDWICH PANEL
ACP is a type of flat panel that consists of 2 thin aluminum sheets blinded to a non aluminum core. What is the meaning of ACP?
Aluminum Composite Panel
Other term for ACP
ACM ( Aluminum Composite Material)
This is used to coat the aluminum sheets making it very rigid and strong despite its light weight.
PVDF (Polyvinylidene Flouride) or POLYESTER PAINT
This core for aluminum sheets is an insulating material no less than 10 cm thick when its use is refrigeration insulation
Low density Polyethylene
Type of aluminum used for fencing, particularly chain link fencing and insect screening
ALUMINUM MESH AND WIRE CLOTH
Give the 6 basic type of aluminum finish.
- MECHANICAL FINISH
- CHEMICAL FINISH
- ELECTROLYTIC FINISH
- ELECTROPLATING
- PORCELAIN OR VITREOUS ENAMEL
- PAINT
What type of paint is not to be used on aluminum?
LEAD BASED PAINTS
Pure of its kind is tough, malleable silvery white metal that is soft and ductile as copper, easily magnetized and is the most magnetically permeable of the metals, what kind of metal is it?
IRON
A commercial form in which iron is first prepared
CRUDE OR PIG IRON
It is an iron-carbon iron that is poured while molten into forms. Often used in architectural field mainly for piping and fittings, ornamental iron work, hardware, etc
CAST IRON
Name two generally used types of cast iron.
GRAY CAST IRON AND MALLEABLE CAST IRON
It is almost pure iron and is characterized as soft, malleable, tough, fatigue-resistant, and resistant to progressive corrosion.
WROUGHT IRON
This is defined as alloy of iron and carbon which do not contain more than 2% carbon and which are made in malleable or ingot form.
STEEL
Why can’t galvanized pipe used as gas pipes?
Flaking of zinc sometimes causes the pipe to burst