Piastre in acciaio resistenti all'usura per condizioni di usura pesante
Piastre in acciaio resistenti all'usura
Panoramica
Wear-resistant steel plates are used where heavy wear and damage often occur. These plates are made with a strong base and a durable surface layer.
Composizione e struttura
Wear-resistant plates are made from two layers:
-
Strato di base (Piastra in acciaio laminato a freddo):
Used for strength and bending resistance. -
Surface Layer (Aluminum Alloy):
Provides high wear resistance.
🔹 Usually, the alloy layer is 1/3 A 1/2 dello spessore totale.
🔹 The layers are joined by special welding machines.
🔹 One to three alloy layers may be stacked.
🔹 Small horizontal cracks often form due to shrinking. These are normal and expected.
Componenti in lega
The alloy layer contains:
-
Cobalto (main element)
-
Manganese
-
Molibdeno
-
Niobium
-
Nichel
These elements form cementite fibers that run straight from the surface down.
Even at 500℃, the layer stays strong and resists rust.
Types of Plates
Wear-resistant plates are divided into three main types:
-
Uso generale:
Used in many industries. -
Resistente agli urti:
Made for high-impact situations. -
Resistente al calore:
Handles high temperatures well.
Applicazioni comuni
These plates are widely used in:
-
Steel and metal factories
-
Coal processing
-
Centrali elettriche
-
Concrete mixing
-
Mining and construction
-
Glass and brick kilns
They are often chosen because they cost less over time than many other materials.
Summary Form
| Section | Details |
|---|---|
| Main Use | Heavy wear conditions |
| Struttura | Cold-rolled steel base + aluminum alloy surface |
| Alloy Thickness | 1/3 A 1/2 of total plate thickness |
| Bonding Method | Automatic welding, layered joining |
| Visible Features | Horizontal cracks from shrinkage |
| Main Elements | Cobalto, Mn, Mo, N.B, In |
| Resistenza al calore | Up to 500℃ |
| Plate Types | General, Resistente agli urti, Resistente al calore |
| Industries Used In | Estrazione, metallurgia, carbone, energia, calcestruzzo, brick kilns, bicchiere, costruzione |
| Vantaggi | Long life, alta resistenza, good cost-performance |
