Tube Drawing Oils
BECHEM tube drawing products are used for forming of tubes, hollow profiles or round bars, no matter whether blasted, annealed or pickled materials are involved.
The Copper tube drawing process has many important factors that affect the quality and precision of formed tubes, such as die angle, drawing speed, reduction ratio, effective lubrication etc. Precise operational parameters can reduce uneven deformation and excessive residual stress, preventing intrinsic defects, surface cracks and wrinkles.
During the drawing process as the copper tube passes through draw die and over the ‘internal diameter (ID)’ mandrel, the surface of the tube extends to a great extent. Lubrication plays a critical role in minimizing friction and temperature rise at the work surface in order to achieve higher process efficiencies and product quality.
The lubricant needs to reduce friction and manage temperature by forming a resilient film that can withstand high surface pressures between the workpiece and draw tool.
Impact of ineffective lubrication on tube drawing
Drawing oil that cannot endure surface pressures can lead to friction, rise in temperature, accelerate die wear and ultimately result in poor surface finish and defective cracked tubes
Lack of lubrication can result in breakage of the mother tube during the interim drawing processes of pilgering, spinner block and straightening, leading to line stoppage and affecting operational productivity
The lubricant quality can affect surface blackening and result in tarnish on the drawn tube. Removal of undesired residues on the ID and OD of the tube is a tedious process
Increase in temperature due to friction and overheating between the tool and workpiece can accelerate oxidation rate and drain out the lubricity additives from the lubricant, further deteriorating its quality and life
BECHEM’s range of tube drawing lubricants
Properties :
Leaves low carbon contents on inner pipe surface. Chlorine, phosphor and sulphur free. Can be easily cleaned by vapor degreasing or solvent washing methods.
Application:
Drawing oil for tubes, rods and profiles. For ID and OD drawing of Brass and Copper tubes. Draw bench and spinner blocks. Can draw upto speeds of 1500 m / min
Mother Tube & Spinner Block ID Drawing
| Masterdraw 5111 |
|
|---|---|
| Viscosity at (mm2/s) 40°C | 3930 – 4350 |
| Density (g/cm3) | 0.88 – 0.90 |
Properties :
Low tendency for residue formation. Ensures longer tool life. Possesses excellent viscosity index. Can be easily cleaned by vapor degreasing or solvent washing methods.
Application:
Drawing of Copper and non-ferrous tubes with high to low wall thickness. For drawing speeds upto 1000 m / min
Mother & Intermediate Tube Drawing
| Masterdraw EBE 350 |
|
|---|---|
| Viscosity at (mm2/s) 100°C | 520 – 600 |
| Density (g/cm3) | 0.895 – 0.915 |
Properties :
Free from chlorine, phosphor and suplhur compounds. Residues provide a bright anneal given a bright annealing atmosphere and can be easily removed by suitable solventss.
Application:
For final ID draw with minimum residues of Copper and other non-ferrous tubes. For OD in annealing draws (without plug inside)
Spinner Block
| Masterdraw EBE 470 |
|
|---|---|
| Viscosity at (mm2/s) 40°C | 110 – 140 |
| Density (g/cm3) | 0.86 – 0.88 |
Properties & Application:
Water miscible coolant with excellent hard water stability. Amine and Boron free coolant. Best suited for sensitive Aluminium, Copper and non ferrous metals. Also suitable for steel and stainless steel. Ensures good machining results
Billet Cutting
| BECHEM Avantin 255 AL |
|
|---|---|
| Oil Content | 39% |
| pH Value at 5%t | 8.8 – 9.0 |
| Refractometer Index | 1 |
Properties & Application:
Water miscible coolant with excellent hard water stability. Amine and Boron free coolant. Best suited for sensitive Aluminium, Copper and non ferrous metals. Also suitable for steel and stainless steel. Ensures good machining results
Cold Pilgering
| Kubitrac P 50 |
|
|---|---|
| Oil Content | 28% |
| pH Value at 5%t | 9.1 – 9.3 |
| Refractometer Index | 1 |
Properties:
No ozone depleting agents. Universal cold cleaning agent, free of aromatic hydrocabons. Colourless, almost no smell and easily biodegradable according to OECD 301 F
Application:
Cleans both ID and OD leaving no residues. Can accommodate large coils.
Straightening and Cleaning Process
| Beruclean Eco |
|
|---|---|
| Viscosity [mm2/S] | 1.8 |
| Flash Point [°C] | ≥ 65 |
Properties :
No ozone depleting agents. Superior cleaning properties with quick dissolving and quick drying affect. Colourless and odourless and easily biodegradable according to OECD 301 F
Application:
Cleans both ID and OD leaving no residues. Can accommodate large coils.
Straightening and Cleaning Process
| Beruclean S 4050 |
|
|---|---|
| Viscosity [mm2/S] | 1.3 |
| Flash Point [°C] | ≥ 50 |
BECHEM Masterdraw Series for Process Productivity
With an objective to increase process productivity with seamless drawing and high-quality surface finish, BECHEM’s Masterdraw series of high-performance tube drawing lubricants for copper and alloys are designed to provide effective lubricity consistently for extended duration. Recommended by leading tube and equipment manufacturers across the globe, BECHEM’s Masterdraw range covers the lubricant requirement for multiple stages involved in the copper tube drawing process.
BECHEM tube drawing products are used for forming of tubes, hollow profiles or round bars, no matter whether blasted, annealed or pickled materials are involved.
The BECHEM Masterdraw Advantage
Enables efficient production: Developed on superior quality synthetic additives and highly refined base oil, the BECHEM Masterdraw range provides excellent lubricity for higher drawing speeds of up to 1500 m/min
The Masterdraw range provides high sheer stability, ensures consistent drawing of long length tubes
Bright surface finish with low carbon residue: The BECHEM Masterdraw range generates lower carbon content residue on the ID compared to other conventional lubricants. Additionally, the tubes drawn with Masterdraw range have better finish and eliminate the need for cleaning prior to the ‘annealing’ process.
Synthetic and semi synthetic range of lubricants to ensure superior and bright surface finish of the drawn tube after annealing.
For longer die life: The BECHEM Masterdraw range possesses high viscosity indices ensuring optimum lubricating film between the frictional partners even at elevated temperatures thereby extending tool life and lesser probability of tube cracking
For optimum consumption: The optimum yet resilient film by BECHEM Masterdraw allows for consistent drawing without overheating and temperature rise
Non-hazardous: Free from sulphur, chlorine, and other phosphorous compounds, hence easily disposable. Also, compatible with R134A refrigerant.
Exhibits low-fume characteristics even at a very high temperature and high-speed drawing
Versatile tube drawing lubricant: The Masterdraw EBE 350 is recommended for both the processes of ‘Inside Diameter (ID) and Outside Diameter (OD)’ drawing
The BECHEM Masterdraw range is suitable for both ‘total loss lubrication’ and ‘recirculation methods’
For more information on Bechem’s tube drawing lubricants, technical comparison, case studies and references, write back to us at [email protected] or visit our website www.bechemindia.com
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