CUTTING & FORMING FLUIDS
METAL WORKING FLUIDS
Precision at high cutting speeds, excellent surface finish at increased feed rates, longer tool life with minimal consumption of coolants, cleaner and hazard free working environment are some of the desired parameters that directly effect cost per component and productivity levels in metal working processes.
While a number of variables are related to the finish outcome, the role of coolant is critical in achieving higher efficiencies and productivity levels. Knowledge of the dynamics involved in tool work interface, the resultant
frictional, tangential forces and behaviour of the fluid when expose to elevated temperature and extreme pressure and imperative in formulating the right coolant.
Need Speciality Grease
BECHEM develops and produces high-performance greases for various industrial applications and extreme requirements. BECHEM offers a wide range of lubricating greases for roller bearings, gears, plastic and electronic components. The applications range from rough conditions in the heavy industry to demanding applications in automotive technology and aeronautics.
According to latest knowledge in tribology, the product range complies with our customers’ demands with regard to friction, wear and lubrication as well as economic and ecologic optimisation of the processes themselves.
Whether as hydraulic fluid, gear oil or food grade chain oil with NSF-H1 approval – for various industrial applications BECHEM offers a range of products which significantly contributes to a modern production and manufacturing technology as well as service and maintenance.
The production programme ranges from high-quality, mineral oil based products up to extremely high-performance synthetic oils which, in addition to extended re-lubrication intervals and reduced downtime, often contribute to a reduction in the variety of products in use and thus a reduction in costs
BECHEM’s comprehensive range of high performance food grade lubricants comply to NSF guidelines and are recommended for a wide array of demanding applications. The ingredients comply to the requirements of Food and Drug Administration and is independently verified by NSF.
BECHEM offers an extensive range of pastes and lubricant products in spray cans for applications in maintenance and assembly lines to long term lubrication of automotive components.
BECHEM’s range of Anti-Friction coatings are developed with combination of high quality solid lubricants, organic/inorganic binding agents, solvents and high performance additives. These performance coatings from BECHEM have provided excellent results to customers.
Frequently Asked Questions
You can find all answers here if you need them
Greases are made by mixing a solid material, called a thickener, with a base oil and property enhancing additives; but it’s the oil that forms the lubrication film. For better understanding, grease thickener can be thought of as a sponge saturated with oil. Moving parts squeeze the oil out of the sponge like thickener for forming the lubrication film. Typically, the base oil constitutes the largest proportion of grease weight at about 80-90%, followed by thickener at 10 to 20% and additives under 10%.
Dropping point of a lubricating grease is an indicator of the heat resistance of the grease. and is the temperature at which the grease is no more a thickened lubricating medium. The dropping point indicates the upper temperature limit at which a grease retains its structure, not the maximum temperature at which a grease may be used.
Few greases have the ability to regain their original structure after cooling down from the dropping point.
The most important feature of a grease is its consistency. A grease that is too stiff may not get pumped into areas requiring lubrication. While a grease that is too fluid may leak out. Grease consistency depends on the type and amount of thickener used and the viscosity of its base oil. A grease consistency is its resistance to deformation by an applied force.
The measure of consistency is called penetration. Penetration depends on whether the consistency has been altered by working. Standard test procedures established by American Society for Testing and Materials International (ASTM) and accepted by industry are ASTM D 217 and D 1403, measure penetration of unworked and worked greases.
The NLGI has established consistency numbers ranging from 000 to 6, corresponding to specified ranges of penetration distance of the standard cone into the test grease. Table below lists the NLGI grease classifications along with a description of the consistency of each classification.
Viscosity: It is a measure of resistance to flow of a lubricating oil.
Viscosity index: It is defined as rate of change of viscosity with respect to temperature.
- It is the most important property which determines the performance of lubricating oils under the influence of temperature
- A lubricating oil should have sufficient viscosity to retain a lubricating film on the surface
- On machine part moving at slow speeds under high pressures, a high viscous oil should be used as it better resists being squeezed out from between the rubbing parts. Light oils can be used for lower pressures and high speeds.
- It is not possible to maintain a liquid oil film between two moving or sliding surfaces if the viscosity is too low and hence excessive wear will occur.
The pour point of an oil is the minimum temperature at which the oil turns into semi solid and almost losses its flow characteristic. At low temperatures, the viscosity of the oil will be very high, causing the oil to resist flow. This is important in equipment that operates in a cold environment or handles cold fluids.