BECHEM BERUFORGE 152 DL

Water miscible drawing paste

Examples of Application
·  Deep drawing
·  Bending
·  Punching
·  Wire drawing
·  Tube Drawing

Material
·  Steel
·  Stainless
·  Aluminium
·  Copper
·  Messing

Properties
·  Water miscible drawing paste to be used on phosphate free semi finished products

Characteristic data
·  Appearance : beige paste

 

Evaporation residue

% 45 – 55

AA_003-153

Unworked penetration

1/10 mm 200 – 400

DIN ISO 2137

pH value

  9.5 – 10.5

AA_003-33 acc. to DIN 51369

 

Instructions for use

Operation
·  Physical

Pre treatment of surfaces to be coated
·  Surfaces have to be clean and free from grease

Product application
·  Storage : Container to be stored under dry and frost-protected conditions. Temperature range +5 °C to +50 °C
·  Water miscible in any ratio to adjust the desired service concentration
·  Required thickness is determined by the corresponding concentration

Coating processes

Blank sections
·  Inductive heating up to 90 to max. 95 °C
·  Flood for approx. 2 sec.
·  Complete drying – if necessary with hot air

Construction elements
·  Heat coating bath to 50 to max. 60 °C
·  Dip parts for about 5 min. into a coating bath by means of drum or tunnel machine (duration depends on geometry and mass). Permanent agitation of the coating bath is necessary!
·  Allow parts to drip off
·  Complete drying – if necessary with hot air

Wire / sheet coils
·  Surface has to be free from electrolytes from the pickling bath
·  For pickled coils temporary corrosion protection has to be applied in the last rinsing bath
·  Pickling of hydrogen annealed coils should be avoided in order to prevent contamination of the surfaces

Coating bath
·  pH value should be situated between 8.5 and 9.5
·  Protect against ingress of acids and preserving agents
·  Monthly analysis with regard to bacterial attack and ingress of foreign substances (Fe, Zn, P) recommended
·  Determination of pH-value and solid content by evaporation test

Parts cleaning
·  Alkaline with water at a temperature between approx. 60 – 70 °C

And more…