Cco Wear Plate

Pelat Keausan Cco

Pelat Keausan Karbida Pelat Keausan Karbida
Pelat Hamparan Karbida Pelat Hamparan Karbida

CCO Wear Plate is called a weld overlay plate because its wear-resistant surface is created by welding a hard alloy layer onto a steel base plate. This manufacturing process, known as hardfacing, forms a strong metallurgical bond and produces a high-chromium carbide surface layer.

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Pelat Keausan CCO (Pelat Keausan Lapisan Kromium Karbida) is a highly wear-resistant steel product widely used in mining, semen, pembangkit listrik, dan peralatan industri berat. It is commonly called a “weld overlay plate” or “hardfacing wear plate” because its surface is formed by a welding deposition process rather than rolling or casting.

The name directly reflects its manufacturing method and structure.

Why It Is Called a Weld Overlay Plate

The term “weld overlay” comes from the way the wear-resistant layer is created.

Unlike traditional steel plates that are produced by rolling, CCO wear plate is made by:

  • Depositing a hard alloy layer onto a steel base
  • Using welding technology to fuse the materials
  • Creating a metallurgical bond between layers

This “overlay” layer is what gives the plate its extreme wear resistance.

So, it is called a weld overlay plate because the surface is literally “welded on” rather than formed as a single solid piece.

Manufacturing Process of CCO Wear Plate

The production of CCO wear plate involves several controlled steps to ensure strong bonding and high wear resistance.

1. Persiapan Pelat Dasar

A mild steel or low-carbon steel plate is selected as the base material.

Functions of base plate:

  • Memberikan kekuatan struktural
  • Absorbs impact loads
  • Supports machining and installation

The surface is cleaned to remove oil, karat, and impurities before welding.

2. Proses Pengelasan Permukaan Keras

The core step is the deposition of a wear-resistant alloy layer.

Metode pengelasan yang umum meliputi:

  • Pengelasan busur terbuka
  • Pengelasan busur terendam
  • Pengelasan busur berinti fluks

During this process, a high-chromium alloy wire or powder is melted and deposited onto the base plate.

3. Formation of Carbide Overlay Layer

As the molten alloy cools, it forms a hard microstructure:

  • Chromium carbide particles (extremely hard phase)
  • Iron-based metallic matrix
  • Ikatan metalurgi yang kuat dengan baja dasar

This structure provides excellent wear resistance.

4. Multi-Layer Deposition (if required)

Untuk ketahanan aus yang lebih tinggi, multiple welding layers may be applied:

  • First layer: bonding and transition layer
  • Second layer: main wear-resistant layer
  • Additional layers: enhanced hardness and thickness

5. Pendinginan dan Penyelesaian

Setelah pengelasan, the plate is cooled and processed:

  • Stress relief and stabilization
  • Inspeksi permukaan apakah ada keretakan atau cacat
  • Meluruskan dan meratakan
  • Memotong sesuai ukuran yang dibutuhkan

Key Features of the Manufacturing Process

The weld overlay process gives CCO wear plate several advantages:

  • Ikatan metalurgi yang kuat antar lapisan
  • Extremely hard wear-resistant surface
  • Tough and impact-resistant base support
  • Adjustable thickness of overlay layer
  • Suitable for extreme abrasion environments

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