BRIGHT WARD

Bright Ward Limited (BWL) is a producer of various refractory and non-ferrous metal parts used in lighting, high temperature, and vacuum evaporation applications.

Headquartered in Hong Kong with production facilities in China, BWL achieves efficient manufacturing by having easy assess to mineral, industrial, and logistics resources.

Our team consists of experienced engineering, quality, and sales staffs who uphold high standards for the quality of their work.

REFRACTORY METALS

Anti-scratch lenses on our phones are sapphire crystals artificially grown in vacuum furnace made with Molybdenum (Mo) parts.

Refractory metals are also used in lighting, aerospace, energy, and nuclear applications.

Refractory metals have the highest melting and boiling points of all metallic elements. This group of metals, which includes Molybdenum (Mo), Niobium (Nb), Rhenium (Re), Tantalum (Ta), and Tungsten (W), serves as the ideal materials for high temperature and vacuum applications because of its ability to remain stable for extended period of time in extreme environments.

The reflectors in automobile headlamps are made by depositing on them a thin layer of Aluminium under vacuum to impart reflectiveness, in the process of which tungsten (W) filaments are used to generate enough heat to vaporize metal Aluminium.

VACUUM EVAPORATION

Material inside a vacuum environment has a drastic decrease in boiling point. Water in vacuum freezes and boils at the same time.

Using this principle, vacuum evaporation is a process where a substrate is vaporized under vacuum and subsequently condenses on various parts to form a thin coating on them.

The bags used to package potato chips are made with this principle by depositing Aluminium onto plastic films to enhance the film’s ability to block out air and moisture, keeping the potato chips fresh.

Processes using the same principle are used to coat thin, transparent but conductive layer of material called ITO onto glass to make the touch screen of every phone, or to make stylish mirrored sunglasses by depositing a thin layer of Chrome onto the lenses.