Image of the H.C. Starck Solution production site in Calne, UK.

CALNE OVERVIEW

Calne is the leader in precision Molybdenum heat sinks with in-house precious metal plating capabilities to enhance and optimize performance.

Our team

35 Employees

Our experience

> 45 years

Our site

Located in Wiltshire, UK
3,020 m2

INDUSTRIES

Aerospace & Defense

Balance Weights
RF Components
Nozzles/Vanes
Electro-Plating & Etching
Others at customer request

Electronics (Thermal Management)

Power Semiconductors
Clip Interconnectors
Heatsinks
Electro-Plating & Etching
Others at customer request

Industrial/Fast Track

Heat Treatment Furniture
CPI
Compressor Springs
Fast Stock Material Supply
Fabrication at customer request

Element symbol of refractory metal niobium
Element symbol of refractory metal molybdenum
Element symbol of refractory metal tantalum
Element symbol of refractory metal tungsten

FAST TRACK

A dedicated Sales and Materials prep team providing the customer with 24 hour quoting for stock material and shipment within 3 days from receipt of order. Non-stock requests are quoted using our global supply chain and we offer one of the largest inventories of refractory materials available at competitive prices with excellent customer service.

Tantalum Rods

Rods 2

Rolled Tantalum

Sheet

Customers who have a requirement for large quantities of material in sheet, rod or bar form on a more regular basis or as semi-finished product can also be supplied via Fast Track as we are supported by H.C. Starck Solutions’ global supply chain.

SERVICE OFFERING

Plating

Plated products displayed to show Calne's plating capabilities

With a world class dedicated Electroplating Facility, the current chemistry gives us the capability to plate pieces made from Molybdenum, Tungsten, and Copper but this can be expanded where opportunity exists for other material requirements.

To enhance molybdenum’s ability to perform, we offer the industries approved plated surfaces:

  • Nickel – Higher temperature brazing attachment. Primer layer for Gold & Silver.
  • Nickel phosphorus
  • Silver – Low temperature solder attachment.
  • Gold – Ultra Sonic Welding. Brazing attachment Nickel Oxide & Acid Etch protective layer.
  • Rhodium – Pressure contact Hard Coating friction reducing layer.
  • Ruthenium – as per Rhodium, customer driven preference.

Rhodium: within 0.1µm specification
Ruthenium: within 0.1µm specification
Nickel: within 3µm specification across a Jig Size 600mm x 300mm up to 10µm thickness
Electroless Ni: within 1µm specification across a Jig Size 600mm x 300mm up to 30µm thickness
Gold and Silver: within 3µm specification across a Jig Size 600mm x 300mm up to 10µm thickness

Lapping

Lapping machine in Calne production plant

Flatness:

5 microns over 150mm diameter and 2 microns in lapping

Lapping Capabilities:

Molybdenum to within 2-5µm in flatness, diameter 20-150mm

Illustration showing lapping capabilities in micron diameter

Welding

Welding station in Calne production plant

Welding chamber for product line fabrication with the dimensions of L 1200 x H 650 x D500mm

The vacuum chamber is pumped down to a high vacuum and then filled with Argon to create an atmosphere of c5ppm of Oxygen to stop any oxidization occurring when welding.

Applications:

  • Furnace Parts
  • Heat Shields
  • Hot Zone Replacement Parts
  • Tantalum Hot Zones

Benefits of an oxygen & nitrogen free welding environment:

  • Prevention of oxidization
  • Reduction of fume formation
  • Smooth weld seams
  • Avoidance of post-welding treatment

Materials:

  • Tantalum
  • Molybdenum
  • Niobium
  • Others by request

Contact Us