Plat Pakai Dwilogam

Bimetallic Wear Plate ialah bahan tahan haus komposit yang dibuat dengan mengikat dua logam berbeza bersama-sama, biasanya plat asas keluli karbon yang keras dan lapisan tindanan tahan haus kekerasan tinggi. Struktur ini menggabungkan kekuatan dan rintangan hentaman keluli dengan rintangan haus melampau bahan permukaan aloi.

Ia digunakan secara meluas dalam perlombongan, pengeluaran simen, loji keluli, penjanaan kuasa, and bulk material handling industries where both abrasion resistance and structural toughness are required.

Struktur Bahan

A bimetallic wear plate consists of two key layers:

• Lapisan asas: Carbon steel or low-alloy steel for structural strength and impact resistance
• Wear Layer: High-hardness alloy overlay for abrasion and erosion resistance

Kedua-dua lapisan diikat secara metalurgi, ensuring strong adhesion and long service life under harsh operating conditions.

Komposisi Kimia Lapisan Haus

The surface wear layer varies depending on the overlay type, but commonly includes high-chromium carbide alloys.

unsur	Kandungan Biasa (%)	Fungsi
Chromium (Cr)	20-35	Forms hard carbides for wear resistance
Karbon (C)	3–5	Combines with chromium to form carbide phases
besi (Fe)	Baki	Bahan matriks
Mangan (Mn)	Jumlah yang kecil	Meningkatkan keliatan
silikon (Dan)	Jumlah yang kecil	Menstabilkan proses kimpalan

These elements form extremely hard carbide compounds such as Cr₇C₃ and Cr₂₃C₆, which are responsible for high abrasion resistance.

Komposisi Logam Asas

unsur	kandungan (%)
Karbon (C)	≤0.25
Mangan (Mn)	0.5–1.5
silikon (Dan)	≤0.5
besi (Fe)	Baki

The base steel provides ductility and impact resistance, preventing brittle failure of the hard surface layer.

Ciri-ciri Prestasi

Rintangan Haus yang Tinggi

The hard overlay layer provides excellent resistance to sliding abrasion, particle erosion, and material impact wear.

Rintangan Kesan yang Baik

The base steel absorbs mechanical shock and vibration, making the material suitable for combined wear and impact environments.

Strong Bonding Strength

The metallurgical bonding between layers ensures no delamination under normal working conditions.

Dipanjangkan Hayat Perkhidmatan

Compared with traditional steel plates, bimetallic wear plates significantly extend operational life in harsh industrial environments.

Common Types of Bimetallic Wear Plates

1. Lapisan kromium karbida (CCO) Pinggan

• Jenis yang paling biasa
• Kekerasan yang sangat tinggi (55-65 HRC)
• Best for severe abrasion environments

2. Plat Tindanan Tungsten Carbide

• Higher hardness than CCO
• Excellent for extreme wear conditions
• Higher cost and more specialized applications

3. Ceramic-Embedded Wear Plate

• Ceramic particles embedded in metal matrix
• Outstanding abrasion resistance
• Used in high-speed particle erosion environments

4. Mn-Based Impact Wear Plate

• High manganese steel base
• Strong work-hardening capability
• Suitable for high-impact environments

5. Multi-Layer Composite Wear Plate

• Combination of multiple alloy layers
• Designed for mixed wear conditions
• Customized for specific industrial applications

Performance Comparison of Types

taip	Rintangan lelasan	Rintangan Kesan	Penggunaan Biasa
Plat CCO	Sangat Tinggi	Sederhana	Perlombongan, simen
Tungsten Carbide Plate	Sangat Tinggi	Sederhana–Rendah	Zon lelasan yang teruk
Ceramic Wear Plate	Sangat Tinggi	Rendah–Sederhana	Particle erosion systems
Mn Steel Plate	Sederhana	Sangat Tinggi	High-impact equipment
Multi-Layer Plate	Adjustable	Adjustable	Complex working conditions

Aplikasi Biasa

Bimetallic wear plates are widely used in:

• Peralatan perlombongan dan kuari
• Pelongsor dan pelapik kilang simen
• Sistem pengendalian arang batu
• Sistem pengendalian abu loji janakuasa
• Steel plant conveyors and hoppers
• Baldi penggali dan trak pembuangan
• Sistem penghancur dan penapisan
• Sistem pemindahan bahan pukal