RHENUS METALWORKING FLUIDS

r.rhenus XT 40 MG

Content:

r.rhenus XT 40 MG
Special coolant for magnesium operations

Application         
r.rhenus XT 40 MG / Rhenus F-MAG is a water-miscible EP metalworking fluid based on mineral oil. As special product for latest machining technologies, it offers high technical performances and maximum protection for operator and machine.
r.rhenus XT 40 MG / Rhenus F-MAG has especially been developed to meet the special demands of operations on magnesium alloys. It is also very well suitable for aluminum alloys. On individual machines is can also be used for the operation on iron and steel.
 
Properties
low formation of hydrogen on magnesium processing
high emulsion stability even at high concentrations of Mg-ions
relative pH-constancy at Mg absorption
no attack or staining of magnesium alloys
low drag out losses, long emulsion life
good demulsifying properties towards Rhenus slideway oils r.rhenus Nor SLA and r.rhenus Nor SLB
very low foaming at different water qualities
favourable process costs
water hazardous class 1
 
Technical Data
Concentrate Emulsion
Viscosity
20℃
(mm²/s) 
Content of mineral oil
%
pH-value fresh preparation
5% 
Corrosion protection
(DIN 51360/1)
approx.160 approx.35 9,1 4% RO-SO
    
Remarks

The preparation of the operating should only be done by means of an automatic mixer.

Recommended mixing ratios:
Machining of magnesium alloys        from 5%
Machining of aluminium alloys and steel from 6%

The concentration of the operating emulsion can be determined by means of a pocket refractometer. The °Brix value multiplied by the re fractometer value equals the concentration in %. Sometimes reading of scale is more difficult with older emulsions because of the more coarse dispersivity.

Refractometer factor

1,0

Rhenus coolants are free from chlororganic substances, nitrite and secondary amines. They contain natural raw materials. Therefore, different shades of colour and appearance are possible, however, quality and function of the products are not affected at all.

Subject to modification of the technical data. Please refer to the material safety data sheet for additional information or contact our application engineers.

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