The materials used for sheet metal processing
The range of sheets we use:
DX 51 D galvanized sheets
Galvanized is cold-rolled carbon steel continuously coated with a hot process (sendzimir) on both faces with a zinc alloy. Due to its versatility it is used in all civil and industrial applications where desired associate the resistance of steel to the galvanic protection of zinc.
Technical features:
Regulations: GALVANIZED ROLLS EN 10142 e EN
Zinc coating from 100 to 275 g/m2 (including the two surfaces); Thicknesses from 0.60 mm to 1.50 mm
Surface appearance: micro-flowered
Pre-painted sheets in various colours
Galvanized and then pre-painted laminates have the advantage of combining color aesthetics a further barrier against corrosion. They are composed of a galvanized metal support and a uniform organic coating applied continuous both in liquid and powder form (painted products).
All products are available with self-adhesive peelable protections (PVC protective film for subsequent processing applied in the profiling line, easily removable - easy peeling).
Technical features:
Regulations: PREPAINTED LAMINATES EN 10169-1
Paint coating 25 microns of polyester on side A and 17 on side B (2F material) 25 microns of polyester on the A side and 7 of back coat (1F material)
Thicknesses: from 0.60 mm to 1.00 mm
Support: DX51D
Copper sheets
The use of copper in building roofing and all other construction-related applications and to architecture it offers an optimal solution from both a technical and economic point of view.
Copper is not attacked by polluting compounds present in large quantities in the atmosphere; al on the contrary, the thin film of copper salts, with a characteristic green colour, which forms on the surface of the product, constitutes a real self-defense of the metal, preventing any subsequent corrosive attack. Thanks to its ease of processing and installation copper offers a wide range of construction and decorative solutions. Copper products are recyclable.
Technical features:
Regulation: UNI EN 1172 - 98
Dimensional tolerances UNI EN 10143
Material: CU DHP CW024A
Metallurgical state: R 240
Aluminum sheets
Aluminum is a metal characterized by its high lightness, versatility and flexibility. He's coming used mainly in the form of pure aluminum alloys, combined with other elements, in order to improve the mechanical properties of the metal and increase its resistance to corrosion.
The products of the future are reflected in the characteristics of aluminium: light but robust, simple to process and suitable for the entire range of applications, guaranteeing economic and ecological advantages thanks to production efficiency and low maintenance costs.
Pre-painted aluminum products are obtained through a continuous painting process, in which the aluminum is degreased, chemically pre-treated and painted. The result is a product with high performance characteristics, versatile and flexible, appreciated by its availability in different colors to meet the most varied architectural needs.
Technical Features:
Regulation: UNI EN 485-2, UNI EN 573-3
Alloy type: EN-AW 3103 (AlMn1) - EN-AW 3105(AlMn0.5Mg0.5)
Physical state: H44-H12
Paint: Side A Primer (4 m) + Paint (22/40m); Side B: Primer (4m)+Paints (15/25m)
Standard colors
Chemical Characteristics:
Manganese (Mn)0.9 - 1.5%; Magnesium (Mg)0.2 - 0.8%; Iron (Fe)0.7%; Silicon (Si)0.5 - 0.6%;
Mechanical Characteristics:
Tensile strength 150 - 200 MPa;
Elongation 3% min.
Dimensional Characteristics:
Standard thicknesses 0.7 - 0.8 - 1.0 mm
Dimensional tolerances UNI EN 485-4;
Standard width 1000 - 1250 mm
Use:
Industrial and civil construction, roofing and cladding, signage
Titanium zinc sheets
Zinc is a natural element extracted from blende mineral. A metallurgical process, which includes blende roasting, oxide reduction zinc obtained and refining through electrolysis, allows to obtain the zinc used in construction.
Zinc is a soft and living material, which lends itself easily to bending processing. It harmoniously covers the shapes and structures of a building.
This noble material improves over the years thanks to its natural patina, which gives it excellent durability and limited maintenance. LattoneriaOnline uses the VMZINC, which multiplies its qualities, leaving architects great freedom creative:
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VMZINC offers the construction world long-lasting coating solutions, capable of withstanding most climates on the planet: - water resistance and to snow due to slopes? 5 % - facilitated management of expansion-shrinkage efforts, of depression to strong winds, climatic overloads and non-propagation of fire. Thanks to its malleability, zinc adapts to the most diverse shapes
original, underlines the volume of the constructions and is easy to work with.
Zinc is an environmentally friendly metal, which benefits from a favorable global energy balance. 100% of rolled or machined zinc products arrived at end of their life cycle is recyclable and 95% is actually recovered for different applications. Zinc production consumes little energy compared to others metals used in construction. |
- Chemical composition
The products are manufactured from high quality Z1 zinc (zinc 99.995 % pure) defined by the EN/DIN 1179 standard, with addition of - titanium: min. 0.06 % - max. 0.2 %, - copper: min. 0.08 % - max. 1.0%,
Adding copper makes the alloy harder and increases its
mechanical resistance, giving the zinc a natural patina and a grayer appearance (the patina
it was whiter in previous leagues).
The addition of titanium increases the material's resistance to deformation (especially under the influence
of alternating thermal stresses).
Laminate compatibility
It is very important to focus on the physical-chemical compatibility of the elements connected to each other. In case of metal contact, their electrochemical potential should be evaluated in order to avoid "stack effect", i.e. galvanic bimetallic corrosion by contact.
Water should never flow from a metal with a high electrolytic potential to a metal at potential lower electrolytic. In fact, in a humid environment, an electrolytic couple is created between the 2 materials that consumes one relative to the other. Water becomes loaded with ions that can destroy more metal weak. Incompatible media In general it is good practice to avoid any direct contact with fresh cement, lime, bitumen, etc malta and building materials that may contain materials harmful to the laminate. The phenomenon of corrosion bimetallic is more likely in the case of "through hole", i.e. when two elements are joined by a fastening that passes through two sheets of different metal. The two factors that contribute most to the corrosion reaction are the severity of the environment and the potential difference between the respective metals. The more aggressive the environment, the greater the difference of potential, the greater the corrosive attack. Once the degradation phenomenon begins, it it tends to evolve over time, affecting increasingly larger surfaces. During assembly of roofing, facades and plumbing works, it is necessary to take all precautions into consideration atte to avoid direct contact of two metals with different chemical potential, especially if this difference is notable. Contact is typically likely to occur when the finishing works are performed, especially in the construction of gutters or downspouts, with metal other than that of which the roofing slabs are made of. The situation generally becomes critical if the galvanic couple is immersed in sea water. Whenever it is necessary contact between cement, mortar, or in general when contact between two is necessary materials with very different electrochemical potential, it is advisable to interpose a "neutral" membrane, such as PVC or felt paper or any other membrane available on the market. As regards small parts (screws, nails, rivets, etc.), elements thereof must be used material or with the same electrochemical potential, unless there is a neutral separating element, how in the case of dowels it is the nylon element that separates the screw from the laminate.