GOLDEN STAR TECHNICAL SERVICES PVT. LTD.
Contact: Yogesh Paralikar
Pavana Industrial Complex, A 39, Plot T 204, M.I.D.C.Bhosari
PUNE, MAHARASHTRA 411026
India
Phone: 91-20-27129357/8
Fax: 91-20-27123119
We are manufacturers of HEAT PIPES for mould industries
Mr.V.S. Paralikar, a Business Entrepreneur-Chairman emeritus and the tour de force of our prestigious company, started his
career in Automobile Engineering, ventured into the Packaging industry viz corrugated boxes, in 1964. The enterprise was the
recipient of the most prestigious award in packaging INDIA STAR award, in 1975 for its brilliant invention in Reinforced
Corrugated Boxes.
In 1976 they were the proud winners of ASIA STAR and 1978 proved to be another successful award winning year for them. The winning of the pinnacle of awards - THE WORLD STAR proved to be doubly prestigious, since the enterprise was then the first Indian company to have received this award. Mr.V.S. Paralikar holds the patent for this inventive technology in packaging.
With a technical vision and a zeal to excel, the enterprise crusaded in diversification in another foray and this time it was the successful launching of the highly technical and innovative product range in the area of energy conservation systems and the range of Heat Pipes.
The activities started under a proprietary concern in the name of Golden Star Technical Services in 1993. The growing size of the company resulted in floating of a Private Limited company viz M/s Golden Star Technical Services Pvt Ltd. in 1995, thereby introducing two highly educated and experienced Directors. One of whom has an experience of 20 years in Plastic Industry and another a Doctorate in Chemical Engineering with rich experience to his credit.
The sound business acumen of Mr.V.S.Paralikar led the company to go professional thereby appointing trained Engineers and staff members. The Company has a state of the art manufacturing facility at their Pune MIDC factory and an efficient Sales Office in Thane City, near Mumbai.
The Company is involved in the development of Heat Pipes for Plastic & Die Casting Industries. Our products range from Tubular Heat Pipes, Angular Heat Pipes, Cooling Sachets, Heat Pipes with baffle, Stepped Heat Pipes, Finned Heat Pipes available in standard as well as customized sizes.
Most of the leading Plastic Processors, Mould Makers in India use our Heat Pipes for achieving better results. We export Heat Pipes to Germany, UAE, Sri Lanka etc.
Another range of products on our list are Heat Recovery Systems. The HRS is instrumental in recovering heat from exhaust of Boilers, Ovens, Furnaces etc. resulting in the conservation of energy to the tune of 65% thus enhancing the prevention of energy losses to a great extent.
What is a Heat Pipe?
A Heat Pipe is an evacuated sealed tube with a capillary mechanism incorporated for the return of working fluid. Introductions
Heat Pipes are developed for thermal control in spacecraft, in particular in earth orbiting satellites.Importance to the specific application of Heat Pipe are due to its following characteristics.
Heat transfer :
The ability to transfer considerable quantIties of heat over a distance wih low temperature difference between source
and sink.
Isothermalisation
The ability to reduce temperature gradients within a bod or to produce a near-isothermal surface.
Heat Flux transformation:
The ability to accomodate different heat and flux at the evaporator and condensor, as a function of two surface areas.
Thermal Response time Heat Pipe V/s. Copper rod
Temperature Range
Heat Pipes are available in two temperature ranges.
For Injection Moulds: Heat Pipes having temperature range from +5 deg. C to + 200 deg. C. The main application
of these types of Heat Pipes are in Injection Moulding, Compression / Transfer Moulding and Rotation Moulding,
Spiral Screws.
For Die-Casting Dies: Heat Pipes having temperature range from +5 deg. C to + 350 deg. C. The main application
of these types of Heat Pipes are in Die-Casting, Spiral Screws in plastic moulding.
It is advisable to order the Heat Pipes suitable to the applications temperature range. If the Heat Pipe gets heated
above its operating temperature, it releases a small amount of non-toxic gas and becomes inoperative.
Material of construction: Copper / Stainless Steel
How to get the best out of Heat Pipes
It is essential to design cooling system in mould design stage only. Normally water-cooling is given after mould
is complete. Due to mould elements like return pins, ejector pins, inserts, alien bolts, etc. only limited space is
available for providing water channels. Mould cooling controls productivity of mould and hence one should think
about cooling design first and then should give ejector pins, return pins, alien bolts, guide pillars and other standard
items in the vacant places.
Selection of correct dia. and length of Heat Pipe is important. Based on product raw material, weight of the product
and desired cycle time, the number of Heat Pipes required for a particular mould is decided.
Once size and quantity of Heat Pipes is finalised, installation of Heat Pipes in the mould needs to be done accurately
to get maximum efficiency.
Guide Lines of Heat Pipe Installation
Select the largest dia. of Heat Pipe considering core strength.
Drill and ream the hole to get 0.05 larger hole than Heat Pipe diameter. Scrub the hole with solvents to remove dirt and oil.
Water to be circulated on 10 to 25% of Heat Pipe length.
Do not cut or pierce Heat Pipe. This will make it inefficient.
Before inserting Heat Pipe in the hole, coat uniformly with installation paste over entire length except the portion in which water is circulated and insert with gradual rotation of Heat Pipe to displace air from the hole.
Do not put any packaging over Heat Pipe in case hole becomes oversize. Use higher size Heat Pipe.
Position inlet and outlet of water to get turbulent flow over Heat Pipe cooling end.
Position the colour end of Heat Pipe into water line
Heat Pipe Application Guide
Heat Pipes are widely used for improving cooling efficiency of injection moulds and Die casting dies all over the world.
This method of cooling has helped reduce cycle time, reduce rejection and improves quality of product. Sketches given
inside the folder describe various applications where one can confidently use Heat Pipes. These are taken from actual
examples of moulds, which are in production all over India. In conventional water cooling, effectiveness of water
cooling goes down due to rusting, blocking of cooling channels. In case of Heat Pipes since water is not circulated
directly in the core, cooling efficiency remains the same throughout the life of the mould
Heat Pipe Standard Range Details
Heat Pipes are readily available in standard diameters from 3 to 12 mm and in lengths from 50 to 250 mm shapes
as shown in the chart. Other sizes from 2 to 24 mm and in any lengths are also available on request.
If you need any further information and help in solving your mould cooling problems; our technical service people will
assist you.
Note: All Heat Pipes are 100% tested to highest international standards. Now all major plastic companies and mould
makers have started using our Heat Pipes. Some of them have changed over from imported Heat Pipes to our high
performance Heat Pipes, which are available at competitive rates.
