Score Group plc provide surface treatment service to the mechanical and aerospace engineering industries. Corrosion protection and wear resistance metal coatings include hard chrome plating, electroless nickel plating, silicon carbide, tungsten carbide for industrial valves and gas turbines. Shot peening, titanium etching and aluminium component manufacture are also provided to aeronautical engineering customers.

The gas turbine engine component repair division of Score Group plc, Hycrome also provide power generation customers with turbine part supply and service.

Hycrome (Europe) Limited, part of the Score Group of companies, has specialised in providing customers with surface treatment solutions since 1947.

Quality approved to ISO9000 and by customers including Airbus, BAE SYSTEMS, Bombardier, Eurofighter Typhoon, Lucas and GKN Westland, Score Group plc specialise in high quality, precision finished components for customers in the aerospace, defence, offshore, gas turbine and power generation industries.

The credible alternative to Tungsten Carbide

A silicon carbide coating within a dense hardened Electroless Nickel Matrix

Hyc20 is a Silicon Carbide Coating within a dense hardened Electroless Nickel Matrix, it has a slightly darker appearance than that of Electroless Nickel Plate.

Silicon Carbide comprises 25% of the coating by volume
The Silicon Carbide particle size is 3 - 5 microns
Baulk Hardness 1300-1500 Vickers
Inclusion Hardness 2500-3000 Vickers

Services provided by Hycrome include:-

• Hard chromium plating
  
• Nickel plating
  
• Heavy and controlled fine tolerance deposition
  
• Electroless nickel plating
  
• Silicone carbide (HYC 20)
  
• Cadmium plating
  
• Surface preparation
  
• Chromate conversion (ALOCROM 1200)
  
• Controlled shot peening and glass bead peening
  
• Non destructive testing
  
• Chromic acid anodising
  
• Paint application and ink identification

Hycrome have extensive grinding and plating capacities for balls and large cylindrical components.

We also offer newly developed composite coatings of ceramic/chrome and Nickel Carbides to give maximum wear and corrosion protective properties for use in aggressive environments.

Fine Tolerance

Hycrome specialise in coatings for fine tolerance applications, for use in aggressive environments and heavy deposits for grinding. The company is the foremost specialist in the field of electro chemical deposition of extra heavy deposits of hard chromium. Hycrome also excels in the plating of sulphamate nickel and electroless nickel, as well as ceramic and MOS2 coatings with a PTFE base.

Hyc20

Hyc20, a specialised silicon carbide coating with a dense hardened electroless nickel matrix with exceptional hardness, frictional and wear properties is especially recommended for use on parts of a complex geometry or where lowering of torque is required. Click Here to view further details regarding the properties of this coating.

Highest Quality

Hycrome also have full access to the highest quality Cadmium, Tin and Copper plating facilities, making Hycrome the one-stop service for all your treatment requirements.

Aerospace Anodising and Painting

Chromic and Sulphuric Acid Anodising
Chromate Conversion (Alocrom 1200)
Anti Fret, and Fungus Resistance Coatings
Paint Application inclusive of Epoxy, Dry Film Lubricants
High Temperature Stove Enamels

Hycrome's multi automated peening facilities provide processing capabilities for shot peening components of many shapes, sizes and materials under strictly controlled conditions. Approvals are held for military and civil aircraft, including Controlled Shot Peening, Glass Bead Peening, and Vacu-Blast.

Shot peening is a cold working process in which the surface of a part is bombarded with small spherical steel shot. Each piece of shot striking the material imparts to the surface a small indentation or dimple. This action combined with the reaction of the sub-surface material fibres, produces an area of cold-worked material highly stressed in compression immediately below the dimples.

As these dimples overlap a uniform layer of residual compressive stress in the Metal is produced. It is well known that cracks will not initiate or propagate in a compressively stressed zone. As fatigue and stress corrosion failures originate at the surface of a component, compressive stresses induced by shot peening provide considerable increases in part life. Shot peening will also increase the surface hardness of many materials due to the cold working effect.

Inducing compressive stresses and cold working are beneficial in increasing resistance to fatigue failures, corrosion fatigue, stress corrosion cracking, hydrogen assisted cracking, fretting, galling and erosion caused by cavitations. Shot peening also reduces porosity in the surface of the material, thus giving rise to greater corrosion resistance and enhanced product life.