ROBAR Industries Ltd. - Waterworks Manufacturing & Iron & Steel Foundry - SINCE 1958
Cast & Fabricated Pipe Products. We also manufacture Logging & Industrial products.















ROBAR Capabilities Foundry HEAT TREATMENT

Patterns • Molds • Melting • Core • Sand • Heat Treat • Coating • Light Forging • Rubber Gaskets

The Finishing Room is where castings are cleaned, ground, and when required, heat treated. Castings are finished and readied for shipment.

Heat Treatment and Quenching are used to alter the physical characteristics of castings.

Some cast metals tend to be brittle after the metal has rapidly cooled in the mold. This characteristic may be modified by Annealing the castings. Annealing requires raising the temperature of the casting to a certain point then very slowly cooling the casting.

Some metal alloys require Heat Treatment to achieve their maximum hardness, strength and wear resistance. These castings are raised to a high temperature in the Heat Treat Oven, then rapidly cooled either in Air, in a Water Quench or in an Oil Quench process.

The Annealing Oven has 4 burners (2,500,000 BTU's) while the Heat Treat Oven has 6 burners (3,750,000 BTU's). Together the ovens can provide heat equivalent to the furnace output of about 65 average homes.

The castings to be Quenched (about 1,500 pounds per load) are placed on the oven car which is placed into the oven. When the oven load is at about 1,600 F (glowing red) the car is quickly withdrawn and the load is quenched in a 5,000 gallon water bath.

HEAT-TREATMENT

Equipment: Two 5-ton furnaces

Capabilities:

Stress relieving
Normalizing
Annealing
Quenching
Tempering

Patterns • Molds • Melting • Core • Sand • Heat Treat • Coating • Light Forging • Rubber Gaskets

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Robar Industries Ltd.CALL for Information: 604.591.8811 - Toll Free 800.663.6553

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