POWEREX 90 ND

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POWEREX 90 ND

powerex-nd

(Exothermic Neck Down Feeder Sleeves for Iron and Steel Castings )

POWEREX 90 ND is a newly developed, pre-fabricated, vacuum formed exothermic sleeves which are produced with advanced automatic machine, for the top feeder applications in all grades of Iron & Steel Castings. Due to the smaller contact area, it will minimize gas cutting and grinding work in fettling area.

POWEREX 90 ND avoids the usage of the breaker core and in many cases, it is possible to knock off the feeder without cutting of the risers. The contact diameter of the sleeve is less than 50% of the original diameter of the sleeve thus contact area is minimized and hence it is suitable where the sleeve-casting contact area is limited.

POWEREX 90 ND Sleeves are available from Dia 1.5 Inches to 6 Inches with increments of 0.5 Inch

Purpose of using POWEREX 90 ND :

POWEREX 90 ND is used as top feeder to get the benefit of minimized cutting and grinding work in fettling area due to reduced opening.

It is suitable for ram-up application too. It is well suited where space is limited in case of conventional sleeves.

ADVANTAGES OF POWEREX 90 ND:

Overall yield is increased due to less volume in sleeves as compared to conventional sleeves.

Remarkable reduction in fettling cost & metal loss due to less contact area.

It eliminates the gas cutting of risers in castings due to easy knock-off of the feeder.

It carries good Exothermic cum Insulating properties which ensures high modulus extension factor resulting good yield.

USAGE OF POWEREX 90 ND :

Select appropriate size of sleeves, according to effective modulus & volume of metal in the sleeves as per the technical data chart.

Calculate the adequate feed metal requirements, risers placement distance, modulus factors of the castings etc. before selection of riser sleeves

Use POWEREX – 700 (APC POWDER ) to protect the liquid metal and to avoid heat loss caused by radiation.

Handle sleeves with care to avoid damage of the neck down portion of the sleeves.

Packing:

POWEREX 90 ND Sleeves are available in shrink wrapped cardboard trays for the ease of handling and for reducing moisture pick-up in sleeves.

Storage:

POWEREX 90 ND Sleeves should be kept in room temperature. The sleeves should be removed from its packing only at the time of use to avoid moisture pick-up in sleeves.

Technical Data


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