Hind High Vacuum Company Private Limited Peenya, Bangalore, Karnataka

Zinc selenide (ZnSe) is the most popular material for infrared applications, windows, lenses, and partial reflectors in the IR region. It has low absorption in the red end of the visible spectrum and quite stable in the laboratory environment.

The vertical vacuum furnace designed to use annealing and stress relieving applications. The charge weight up to 500 Kg. The operating temperature is 1250 degree C.

Large vertical vacuum brazing cum annealing furnaceis used for brazing, annealing and tempering of various components of aircraft engine during overhauling of engines. The furnace has a gas fast cooling facility of 5 bar absolute with state-of-art control instruments.

Large vertical vacuum brazing cum annealing furnaceis used for brazing, annealing and tempering of various components of aircraft engine during overhauling of engines. The furnace has a gas fast cooling facility of 5 bar absolute with state-of-art control instruments.

HHV Vacuum Union seals any tubing or tabulations in the sizes. These Vacuum Unions are mounted either by brazing or welding and are manufactured in stainless steel.

The Advanced Horizontal Vacuum Furnace used for rotary Brazing applications. The operating temperature is 1300 degree C.

Passivation is a process that removes “free iron” contamination left behind on the surface of the componentsparts as a result of machining and fabricating processes. These contaminants are potential corrosion sites which, if not removed, result in premature corrosion and ultimately result in deterioration of the components. Materials engineers in high tech industries such as aerospace and electronics have been using, for many years now, the technique of chemical Passivation to prevent corrosion. In this process a chemical treatment accelerates the formation of an extremely thin, about 0.0000001 inch thick, oxide film on the surface of the clean part. This film prevents further corrosion of the surface.

This easy to use, high production rate vacuum metalizing system accomplishes effective deposition on substrates with complicated shapes and a wide range of sizes from a surface area of 50 x 50 to 200 x 900 mm and depths from 2 to 100mm. The twin door mechanism which helps to reduce the process cycle time. It has two independent gas inlet systems, one for Air Oxygen Nitrogen Argon to carry-out glow discharge cleaning process and other for the monomer to carry out plasma polymerization process for pre- coat and post - coat of the reflectors. The work holder has been designed to have a carrying capacity of 100 Kg. The “Harp” design of the evaporation bus bar provides better uniform aluminum coating and penetration on to the substrate.

HHVs Vacuum Induction Melting (VIM) has a reliable process and very versatile.It can be used for producing a wide range of materials, including special alloys that are cast for high value critical parts such as golf club heads, aerospace parts, automotive parts, and other equipment components that need special mechanical properties for successful operations.

HHVs Vacuum Induction Melting (VIM) has a reliable process and very versatile.It can be used for producing a wide range of materials, including special alloys that are cast for high value critical parts such as golf club heads, aerospace parts, automotive parts, and other equipment components that need special mechanical properties for successful operations.

Vacuum heat treatment prevents distortion of the material and provides an oxidation free surface. HHV’s cold - walled horizontal vacuum heat treatment furnace has oil and gas quenching capability. The furnace has a horizontally mounted double walled water cooled chamber fabricated with carbon steel in accordance with ASME code. It has a diameter of 1100 mm, wall thickness of 12mm and a cylindrical length of 1000mm housing the hot zone of size of 730mm (D) x 750mm Depth. A fork lift facility has been provided for loading and unloading of charge of up to 200 kg in weight.

Vacuum heat treatment prevents distortion of the material and provides an oxidation free surface. HHV’s cold - walled horizontal vacuum heat treatment furnace has oil and gas quenching capability. The furnace has a horizontally mounted double walled water cooled chamber fabricated with carbon steel in accordance with ASME code. It has a diameter of 1100 mm, wall thickness of 12mm and a cylindrical length of 1000mm housing the hot zone of size of 730mm (D) x 750mm Depth. A fork lift facility has been provided for loading and unloading of charge of up to 200 kg in weight. The furnace provides a uniform operating temperature of up to 1250 deg.C in the hot zone utilizing resistance heating by molybdenum band type heating elements. A vacuum system comprising a high speed diffusion pump in combination with roots and rotary pumps enables achieving a vacuum of 1x10-5 m.bar.

Because of its diversity of needs, HHV has been designing and manufacturing variety of vacuum drying oven suits customer specific applications. These vacuum drying ovens are being used to achieve rapid drying at low temperature, including the drying of deep pores, in a way that does not damage the products. In these vacuum drying ovens, the dried material is exposed to a vacuum, thus reducing the boiling point and leading to water evaporation even at low temperatures. Drying usually refers to the removal of liquids from a subject via evaporation or vaporization. In drying processes that use convection, the vapour pressure of liquid that is to be expelled at a certain temperature or pressure is critical. If the vapour pressure is identical to or less than the liquid content in the atmosphere, no drying is possible.

HHV vacuum equipments are being used extensively by a number of auto electrical manufacturers. HHV products are approved for its quality and reliability by most companies producing auto components i.

HHV Vacuum Arc Re-melting furnace has two melt stations – one for consumable (in vacuum) and the other for non-consumable (in sub-atmosphere argon pressure) melting. The furnace is used to melt Niobium and Tantalum as well as to prepare alloys based on these refractory metals with an ultimate objective of producing alloy ingots of 60 – 150 mm diameter and upto 500mm length and alloy pancakes of 110mm diameter and 10mm thickness.

IR blocker coating is deposited on quartz windows and transmits the required UV energy from the light source while significantly suppressing the unwanted visible and infrared energy. It protects the heat sensitive materials from infrared radiation. Used in conjunction with our UV reflector coatings, this filter improves the efficiency of high power UV curing machines. It provides additional benefit by protecting the lamp and dichroic UV reflector in running the curing processes.

HHV produces world-class UV reflectors, which can be used in an optical system to dramatically speed up the UV curing process. UV reflectors give a high reflectance of UV energy while visible and infrared energy are suppressed. This enhances quality of finished products, improves durability, boosts productivity through substantial saving in energy, reduces drying times and labor and dissipates absolutely no environmental pollution.

The product is used in an EHL (Elasto Hydrodynamic Lubrication) Ultra Thin Film Measurement System which is a computer controlled instrument for measuring the film thickness and friction (traction) coefficient of lubricants in the elastohydrodynamic lubricating regime. This instrument can measure film thickness down to 1 nm with a precision of ± 1 nm. The present invention of “tribological coating for measuring film thickness of lubricants” is very unique.

The product is used in an EHL (Elasto Hydrodynamic Lubrication) Ultra Thin Film Measurement System which is a computer controlled instrument for measuring the film thickness and friction (traction) coefficient of lubricants in the elastohydrodynamic lubricating regime. This instrument can measure film thickness down to 1 nm with a precision of ± 1 nm. The present invention of “tribological coating for measuring film thickness of lubricants” is very unique.

Thin film circuit metallization schemes at HHV are deposited by magnetron sputtering method and the deposited metal layers show excellent adhesion compared to other non vacuum deposition methods.These metallization schemes start with abonding layer of TiW or Cr and a conductive layer of Au Cu on the ceramic substrates.

HHV provides high performance sputtering targets in a wide range of materials, sizes and forms. This includes precious metals and non-precious metals, engineered specialty alloys, ceramics and specialty inorganic thin film PVD chemicals for a variety of target configurations. Forms include standard geometries likeCircular (2”~12”Dia), rectangular, cylindrical type, and rotary as well as custom designs for specialized processes.Target backing plateswith customised sizes and configurations can be provided with wide variety of materials including copper, aluminium, molybdenum and stainless steel.

Telescopic mirror coaterThis large areas thin film deposition system to coat with a surface accuracy of 116th of 550 nanometres with 20.0kW water cooled rectangular magnetron fixed with an Aluminium target of size 89 mm (W) x 2000 mm (L), and 6.00mm thickness. Its design and manufacturing capability was to position the 3.7 m diameter, 4500 Kg weight mirror, with a thickness of 12 mm on a kinematic support mechanism known as a “Whiffletree” which ensures no stress and a sag of large substrate during the coating process.Whiffle tree mechanism to handle mirror

HHVs one of its recent advanced special purpose vacuum furnace is a Solution cum ageing vacuum heat treatment furnace intended to be used for stress relieving of Nickel - based alloy parts and for processing aluminum components. The furnace is designed for solution heat treatment, solution annealing, precipitation hardening, artificial hardening, age hardening, artificial ageing and preheating.

HHV has made the dreams of researchers working in academic and industrial thin film laboratories come true by introducing a versatile, modular thin film deposition system SMART COAT 3.0. It is compatible with Glass bell jar & cylindrical glass chamber & box type metal chamber. This unique modular design helps the researchers to develop a wide range of thin film process and products with evaporation; ion assisted sputtering or electron beam techniques. SMART COAT 3.0is the result of HHV’s expertise in producing thin film deposition system for over 47 years, exporting to developed countries for specific application and the knowledge gain through its in-house state-of-the-art thin film laboratory. HHV thin film laboratory is serving the opto-electronic community.