Melt Extract steel fiber reinforce refractory castable against cracking to extend and enhance refractory lifetimes. The steel fibers can be added to all monolithic refractories, from insulating to ultra low cement refractory castable, ramming materials & moldable, precast shapes, gunning and shot creting mixes. Steel fiber reinforced refractories are now commonplace in a wide range of high temperature processing industries.
NR melt extract steel fiber impart increased strength and resistance to thermal cycling, steep thermal gradients and mechanical shock, minimizing damage and delaying failure caused by cracking. By increasing refractory lifetimes, steel fiber refractory reinforcement (SFRR) offers the end user a reduction in downtime and substantial savings in materials and labor costs.
Melt extract steel fiber are spun directly from the melt using the company’s advanced melt extraction and melt overflow processes. Rapid cooling of the fiber during manufacture (equivalent to 50, 000 per second) “freezes” the metallurgical structure, capturing it in an optimum state to resist high temperature corrosion – a state which is impossible for conventionally cast steel to match.
The processing maximizes the effective distribution of the primary nickel and/or chromium alloying elements throughout the fiber while simultaneously minimizing grain size. When coupled with sunshine’s skill of blending non-standard levels of performance-enhancing key trace elements to the melt, a unique range of dedicated refractory fiber alloys have been produced which provide outstanding oxidation resistance and unmatched performance at elevated temperature.
Mainly used for reinforcement of refractory products in various industries, such as Petrochemical, steel, chemical, power station, cement and rock industries, etc.
Refractory operating conditions :
• High thermal cycling or
• Continuous fibre soaking temperature up to 1100oC in refractory
• Moderate mechanical shock
• High temperature oxidation resistance
Our fiber technology helps extend refractory life and offers added benefits such as outstanding spalling resistance, superb fracture toughness, better abrasion resistance, superior thermal and mechanical shock resistance and uniform alloying characteristics. Use of NR fiber substantially improves refractory durability and performance, and reduces refractory installation, maintenance and material.
Except the melt extract steel fiber, refractory steel anchors are used for castable refractory reinforcement, the anchors hold the refractory lining on the shell of industrial furnaces. we have refractory anchors listed below are made with grades like Inconel, nickel chromium steel, SS 310, 316, 304 and any other grades. ” V ” waved shapes are designed in order to insure the best anchoring of the castable lining, when this one has dimensional variations due to ambient temperature evolution and mechanical stress as well. Several types are available in respect of their way of fixing and if they anchor a single layer or a multi layer lining. [ V anchors, Y anchors, Corrugated Anchors ]
Wire mesh is also used for the refractory reinforcement for castable or refractory concrete.