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Nucleant
Plungeable grain refining agents for aluminium alloys.
NUCLEANT range of products are available in tablet form and are used
for grain refining of aluminium and its alloys.
Purpose
Normally, aluminium and its alloys solidify with coarse columnar and
equiaxed crystals. Such a coarse grain structure poses problems like poor
feeding characteristics, cracking during metal working and poor response
to the surface treatment processes.
In the case of hypereutectic aluminium-silicon alloys the primary silicon
precipitates in coarse particles which tend to cluster. This leads to
poor feeding characteristics and lower tensile strength and wear resistance
properties.
NUCLEANT addition into the metal before the casting operation overcomes
these problems by producing fine equiaxed grains in the case of aluminium
and its alloys.
| Specifications |
Colour |
Nucleant-2 |
White |
Form
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Tablet |
Moisture
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0.05% Max. |
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Density |
1.70-1.90 Gms / Cc |
| Instructions For Use |
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Melt under the cover of a suitable flux and bring the metal
temperature to 7300C - 7500C for aluminium and its alloys. In
case of hypereutectic Al-Si alloys, bring it to the desired
temperature depending on the size of the casting.
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When the metal temperature is falling, plunge the recommended
quantity (as per the application guide) of NUCLEANT right upto
the bottom of the melt. Use a perforated and preheated bell
plunger coated with refractory coating for plunging to prevent
contamination of the melt with iron. In case of Al-Si hypereutectic
alloy, degas the metal before treating with NUCLEANT 10 or 11
to knock off sodium in the metal.
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When the reaction ceases, degas the metal with the help of
a suitable DEGASER * product, dross
off and modify wherever required (in the case of hypereutectic
and eutectic Al-Si alloys).
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| Customer Benefits |
Nucleant range of products:
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Improves machanical properties.
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Improves feeding characteristics.
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Ensures freedom from cracking in rolled and forged products.
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Improves surface finish and response to anodising.
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| Standard Packing |
- NUCLEANT is wrapped in poly lined aluminium foils packed in
cardboard boxes.
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| Safety Precautions |
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Store NUCLEANT products in a cool and dry place. Keep them
properly covered.
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Avoid inhalation of dust.
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Use of protective gloves and nose napkins recommended.
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* All information that is provided in this
leaflet is to the best of our knowledge true & accurate. Any claim
arising out of defective material will be limited to replacement. The
company accepts no liability for any consequential losses and damages.
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