Hot extrusion is a hot working process, which means it is done above the material's recrystallization temperature to keep the material from work hardening and to make it easier to push the material through the die.
Most hot extrusions are done on horizontal hydraulic presses that range from 230 to 11,000 metric tons (250 to 12,000 short tons). Pressures range from 30 to 700 MPa (4,400 to 100,000 psi).
The two main advantages of this process over other manufacturing processes are its ability to create very complex cross-sections with an excellent surface finish.
Our extensive experience in the aluminium extrusion sector have allowed us to develop competitively priced products to meet the demands of our customers.
- Maximum efficiency through a reduced coefficient of friction
- Reduced energy consumption and associated costs
- Reduced maintenance costs
- Reduced wear and prolonged machine life
- Products for the lubrication and cleaning preparation for the extrusion die face and dummy for aluminium profiles.
- Cutting fluids for use on the teeth surfaces of the finishing or profiles saw (rotary disc type cutters). These minimise contamination of the profile while maintaining maximum cutting efficiency.
The products detailed below are just some of the lubricants and cutting fluids that we supply to the aluminium extrusion industry.
BESTRIL 243 is a product with special additives for use as pure lubricant for the cutting of aluminium profiles and bars. It can be applied to the teeth surfaces of the finishing saw. Additionally it is recommended as a lubricant for continuously moving chains. BESTRIL 243 does not produce fumes during the cutting of aluminium profiles.
The cutting saw is an important unit within the extrusion line process and has the function of cutting the profile in to predefined sections before they pass in to the ageing oven.
Cutting is usually made under vacuum in order to ensure continuous extraction of cutting chips/ files generated during the cutting process.
FLUID BES 710 is a fluid oil developed for aluminium extrusion & is especially suitable for spraying systems. The product was developed to be compatible with the annealing process of aluminium & does not stain the material during thermal processing.
BESTRIL 2091 is a Boron nitride in water dispersion. It is specially intended for the anti-adherent treatment of the front surfaces of aluminium slabs or the pistons during extrusion of profiles. It can be used as an anti-adherent for wire cutters in aluminium cutting and also in aluminium casting as an anti-adherent for ingots/ billets.
BESTRIL 2091 allows the removal of aluminium pieces from the extrusion machine piston.
BESTRIL 2095 or BESTRIL 2091 is applied to the die face to facilitate the efficient and clean entry of the hot billet. Dummy block & die face lubrication application is usually done by air spray system.
We also carry a full range of high temperatures lubricants such as PFPE based greases but also other special lubricants and maintenance lubricants. See the 'specification' tab on our webpage for further details of our metalworking and forming products.
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