Company Profile
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Eric Karslake, Managing Director
The TACA Group was established in January 2000 after two years of research and development to produce a hard-facing machine with a specialised welding process. This process provides a unique application of granulated tungsten into a weld pool on ground engaging machinery parts and general wear parts across a wide range of industries.The TACA process can extend the life of these parts by up to five times and in some cases by much more. In wear-part applications currently using nihard, TACA coated mild steel plates have lasted up to 7 times longer than the original nihard plates. The TACA process has provided enormous benefits to the agricultural, mining, quarrying, earthmoving and road construction industries reducing maintenance and replacement part costs, increasing productivity and boosting profits.
TACA Australia (Oz) Pty Ltd is based in the industrial suburb of Tullamarine in Melbourne, Victoria Australia along with other companies within the TACA group – TACA International Pty Ltd, TACA Metro Pty Ltd (our Research and Development arm),TACA Australia (Oz) Pty Ltd, TACA Australia Pty Ltd, TACA Holdings Pty Ltd and TACA (OZ) NZ Limited.
TACA has Maintenance Contractors throughout Australia and New Zealand to enable fast and efficient service to all our clients. TACA Representatives have the added benefit of understanding local wearing problems so that they can provide appropriate advice on the best TACA solution. This has proved to be of enormous benefit for the customer.
TACA’s aim is to be the world leader in the provision ofa tungsten granulated carbide impregnated coating to all ground engaging cutting and grinding wear-plates, and other industrial applications. We are committed to always supplying a high quality and cost effective product to our customers, through our fully trained Representatives.TACA is continuing to develop and invites any potential TACA Representatives to find out more about TACA opportunities available
Our continued success depends on our reputation being preserved through the highest standard of business practice and service to customers.Please explore the rest of our site to find out more details about the unique TACA process.
Fact sheet (1)
Fact sheet
Written by Super User1) Properties:
Properties of Tungsten Carbide
Tungsten is one of the hardest metals known to man. The Periodic Table lists the following:
Molecular Formula: WC & W2C, depending on the carbon content.
Melting Point: 3422 degrees celsius
Boiling Point: 5555 degrees celsius
Hexagonal Crystalline structure
Mohs hardness scale is 8.5 to 9.5 (diamond being 10.0). (Approximate Vickers 1200 to 1700, or Rockwell C 89+)
Tungsten is sintered in varying percentages with Colbalt and other metals, to form a Grit that is suitable for hardfacing applications in a CO2/Mig Weld
Properties of Colbalt:
Colbalt is a hard lustrous grey metal, widely used for wear resistant, high strength Alloys.
Molecular Formula: Co
Hexagonal Crystalline structure
Mohs hardness scale is 5.0 to 5.5 (Approximate Vickers 500 to 800, or Rockwell C Scale 76+)
Properties of Mig Welding Wire:
Mig Semi Automatic or Automatic Feed.
Temperature on the parent metal face varies between 1500 degrees celsius and 2300 degrees celsius.
The product defines the degree of hardness, but is usually below Mohs 4.5 (Approximate Vickers 400 to 500, Rockwell C 41 to 49)
The above facts are based on basic Mig Wire. Harder wires are available which will enhance the Tungsten Carbide application hardness properties.
2) Application:
TACA Grit Mix:
TACA Tungsten Grit is imported from Africa using a specially formulated blend to produce the hardest matrix of coating known to man. The Grit is supplied in scientifically designed Grit sizes, with varying degrees (Percentages %) of fines. Our product is strictly controlled and ensures better adhesion and higher resistance to wear and impact.
TACA Application
The TACA application uses a unique patented process that allows the Tungsten Grit to penetrate the parent material therefore allowing the matrix weld to be impervious to impact. The patented TACA Machine allows no foreign particles into the matrix weld therefore giving the weld a density of unparrallel hardness.
TACA Hardness:
TACA's tungsten coating is formulated to maximise the wear and impact resistance of the application to reap the ultimate benefits of the properties of Tungsten. TACA consistantly exceeds 60+ Rockwell C within the matrix binder. Constant Research and Development is pushing this limit higher, and the new TACA MACHINE achieves even higher percentages on the Rockwell C Scale again.
3) The Result:
Summary:
The crystalline structure of pure Tungsten lends itself to being almost comparable in hardness to diamond, in mixing it with various other metals, a useable product is produced which enables the application to be applied to the base metal, and thereby increasing resistance to erosive properties whilst engaged in all abrasive workings. The purer the application the better the product functions. Any impurities encased within the Tungsten Carbide Application Matrix results in increased brittleness and loss of adheasive qualities. This results in early failure. TACA's high quality patented process reduces this to a negligible level. However, the application must be scientifically mixed within the parent material to enable it to fully carry out its designed task, thus providing a Cost Saving benefit in Downtime and Labour etc.