The core value of ceramic fiber materials is one sentence: keep heat in the furnace and take weight out of the structure. Different forms are not just different names; they solve different installation problems.

[Image: fiber blanket/board/module side by side]

01 Three common forms

1) Fiber blanket

• Form: roll, flexible, cuttable
• Advantages: high adaptability, can wrap complex structures
• Common use: insulation layer, thermal barrier, equipment wrap, hot-face backing (depending on temperature)

2) Fiber board

• Form: rigid board, higher strength
• Advantages: size stability, good flatness, stronger wind erosion resistance
• Common use: furnace doors, fire baffles, access openings, insulation structures that need a "hard face"

3) Fiber module

• Form: pre-compressed blocks with anchoring structure
• Advantages: fast installation, good integrity, suitable for large-area linings
• Common use: heating furnaces, heat-treatment furnaces, soaking pits, and other large-area lining systems

02 Two selection lines

• Hot-face temperature and atmosphere: higher temperature and harsher atmosphere require higher fiber grade and surface treatment
• Gas velocity and mechanical scouring: in high-velocity/flame-scour areas, boards and modules are more stable; add a protective layer when needed

03 Most critical construction points

• Anchoring structure should be reasonable to prevent loosening after thermal cycles
• Expansion joints must be handled well to avoid cracking from thermal expansion and contraction
• Hot-face protection layers should match the service conditions; do not skip them just to "save a step"

Xinhui typically provides module layout and anchoring recommendations by furnace type to avoid the low-level rework of "right material, wrong structure."

[Image: module anchoring diagram / lining layer structure]