Hind High Vacuum Co. Private Limited, Bangalore

HINDHIVAC manufactures special Vacuum Diffusion Bonding Hot Presses for joining dissimilar metals, diffusion bonding, super elastic forming etc. HINDHIVAC designs, develops and manufactures 20 to 200tonne vacuum diffusion bonding hot press tailored to customer specifications, wherein the chamber, the chamber size, tonnage of the press, pressure, temperature are specifically suited to the requirements of the customer.

These presses are made for prestigious clients like Nuclear Power Corporation, Defense Metallurgical Research Laboratory and Bhabha Atomic Research Centre, etc. The presses are equipped with liberally sized hot zone for uniform temperature in the working area. The vacuum bonding hot presses High vacuum pumping system consisting of Oil Diffusion pump, Rotary Vacuum pump etc., to achieve high vacuum in the chamber.

All the weldments are done by inert gas welding and are internally welded to minimize virtual leaks. The chambers are electro-polished are totally programmable and are operated from a compact centre console which houses the PLC and all other electric controlled gear for low outgassing.

Temperature programmers are provided for controlled heating which can be programmed as per the requirement of the process. The stroke lengths are also adjustable and timers are provided for controlling the time of compacting.

HINDHIVAC Vacuum Ovens are available in Cylindrical / Cubical model for degassing, annulling and drying of components under vacuum.

Vacuum Ovens are fabricated out of Stainless Steel of SS 304 grade, with front door opening. Removable type loading trays to accommodate the components to be dried. External/Internal heating type with tubular heaters with suitable insulation to attain uniform maximum temperature of 250 C inside the oven. Suitable controls for temperature measurement with thermocouple. A dedicated DC power supply of 2 KW is provided for Magnetron Sputtering.

A high speed vacuum pumping system fully integrated with necessary piping and valves, all operated manually is rated for high gas through-put handling and to produce clean and high vacuum in the chamber. HINDHIVAC Vacuum Ovens have all the electrical controls and instruments are housed in the main unit at convenient place for smooth operation of the system.

HINDHIVAC has designed and supplied various size of Vacuum Furnaces for special applications like, Vacuum Brazing, Annealing, Hardening, Tempering, etc. meeting to the customer requirements. Horizontal / Vertical type of Vacuum Furnaces are fabricated out of Stainless Steel with Hot zone made of Molybdenum / Tantalum / Tungsten / Graphite with suitable radiation sheet for temperature ranging from 800 C to 2500 C to meet the specific requirement of the customer.

High Speed Vacuum Pumping System with the option for Diffusion pump / Turbo molecular pump to operate the furnace in the range of 10-2 M.bar to 10-6 Mbar. Vacuum Furnaces are provided with fast Gas cooling facilities with pressure ranging from 800 m.bar to 4 bar absolute, Oil quenching facilities as an option.

Control instrumentation like Temperature programmer controller, Over temperature controller, Auto / Manual Vacuum controller, Programmable logic controller (PLC) for complete automation of vacuum cycle, temperature cycle and other necessary safety devices and interlocks for smooth operation. Complete operation of the vacuum furnace through Computer & Scada software can be provided as an option.