REFRACTORY & corrosion ENGINEERING SOLUTIONS
Design and Development of Refractory Materials • Demolition • Maintenance and Repair of Refractories
Corrosion Engineering Solutions • Materials and Maintenance
Lagging and Cladding Installation and Repairs
Refractory Anchors
As a renowned refractory lining design, development and installations specialist with over 45 years of experience, Refraline has expanded its services to include the design and manufacturing of stainless steel anchors, ensuring that we can provide a complete refractory engineering solution. This ensures for a complete thermal and mechanical synergy with our refractory linings resulting in a cohesive and complete package that adheres to the highest standards of quality and performance.
Stainless-steel anchors in refractory settings form the mechanical interface between the structural shell and the refractory lining, keeping the various components and material layers firmly in place ensuring stability and durability under extreme thermal and mechanical conditions. By providing a mechanical foundation for refractory linings, high-performance stainless-steel anchors can enhance structural integrity by preventing the materials from shifting, cracking, or spalling due to thermal expansion, mechanical stress, and chemical reactions. This results in extended service life of the refractory lining, ultimately contributing to the efficiency and reliability of the refractory unit.
Refraline’s range of stainless-steel anchors are available in a variety of materials, fastening methods, diameters, shapes and designs manufactured with state-of-the-art 3D bending machinery ensuring a tailor-fit solution to your industry needs. Our 3D bending machine makes use of a computer-controlled system allowing for precision shaping of anchors. The hydraulic bending system ensures uniform force application during the bending procedure, reducing localized stresses as opposed to press forming where pinch points from pressing tools are commonplace. The CNC machine software allows the import of anchor models from CAD, ensuring millimetric precision even in anchor designs featuring complex geometries, granting consistent high-quality results from every anchor we manufacture.
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Material Grades
Anchor Designs
Stainless steel anchors come in a variety of shapes designed to cover a range of applications, scenarios and functions.
V-shaped anchors:
Effective and ideal for general-purpose applications where moderate stress and temperature conditions are expected. V-anchors offer great stability, holding power and ease of installation. They are mainly used for single-layer refractory linings.
Y-shaped anchors:
Y-anchors are often used in applications with frequent thermal cycling, and in multi-layer compound refractory linings. Y-anchors feature a shank which acts as a base for a variety of attachment methods.
Dual-Pin anchors:
Simple and versatile, Dual-pin (or Double Pin) anchors are mostly used for repair work and areas with varying insulation thicknesses. Dual-pin anchors are a cost-effective solution for dimensionally constrained sections; they are designed to be opened on site.
Anchor design and Manufacture
Refraline designs and manufactures its own range of refractory anchors at its head office facility in Johannesburg. These anchors are bent with its own CNC bending machine using quality stainless steel. Quality is fundamental to the anchor process, and a wide range of different types are available, refer to the anchor brochure tab in the website or scan the QR code
Corrugations
Corrugations increase the holding power of your chosen anchor shape. They entail creating undulated anchor stems, allowing the anchors to provide greater holding power by geometrically constraining the surrounding refractory. This results in secure fastening of heavier materials and sections. Refraline provides a selection of corrugation methods to augment the holding power of your chosen anchor design.
No Corrugation:
The anchor stems are completely straight, allowing refractory to move. This is suitable for applications where movement is intended or necessary.
Standard Corrugation:
Undulations applied to the anchor stems provide increased holding power, preventing movement of the surrounding refractory lining.
3D Corrugation:
Applies undulations across multiple axes to the anchor stems for a mechanical locking effect on the surrounding refractory, while also allowing for better distribution of mechanical stresses.
Gullwing:
Features a Y-shaped anchor with a 90° bend at the top of the anchor stems.
Bullhorn:
Features a V-shaped anchor with a bend at the top of the anchor stems, allowing for a simpler method to provide better holding power while also redirecting mechanical stress applied to the refractory. The bend is parallel to the shell.
Notched:
Usually found on pins and fibre pins. On fibre pins they are used in conjunction with their lock-washer counterpart. On pins, the notch is used to keep washers at a specific height so as not to damage the insulation lining material.
Vision and Mission statement
Vision: We envision ourselves to be the preferred suppliers of refractory and corrosion engineered solutions through a customer-focused approach.
Mission: Our mission is to offer innovative solutions in the development, manufacture, supply, and corrosion materials and services by challenging current industry practices and technologies.
