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Summary of well cementite furnace
Well cementite furnace is a new type of energy-saving periodic operation type heat treatment furnace, which is mainly used for gas carburizing of steel parts and is suitable for heat treatment of rod and long shaft parts. The structure of the well furnace is as follows: the furnace body is a cylindrical deep well, and the workpiece is vertically loaded into the furnace by a special crane for heating. A: yes, sir
Well cementite furnace temperature insulation cementite furnace temperature is 950 ~ 1000 ℃.

Heat insulation structure of well cementite furnace
● refractory insulation furnace wall part of well cementite furnace: composite lining structure with total insulation thickness of 300 mm and ceramic fiber folding block + layer blanket from hot surface to cold surface, wherein the thickness of the folding block is 270 mm and the material is high purity type; The BAC layer was compress to 30 mm from two 20 mm thick fibrous blankets.
The composite fixing structure of the ceramic fiber folding block adopts herringbone frame and rib threading, and the material of the matched anchor is 1cr18 ni9 ti.
The temperature measurement and pressure measurement points of the furnace wall can be drilled on the fiber lining on site, but in the detailed design of the lining, the anchor nail position of the fiber module shall be avoided from the drilling position.
● bottom part of well cementite furnace refractory insulation furnace: module + layer blanket lining structure is adopted, with a total thickness of 250 mm, with module ( 200 mm in thickness ) and layer ( 50 mm in thickness ) in sequence from hot surface to cold surface

　　

Warm tip: all well cementite furnace ceramic fiber module after the installation, need to spray high temperature curing agent on the surface of the fiber, forming a hard film protective layer, with resistance to wind erosion and fuel chemical erosion.

Technical advantage
● soldier - column type plus compensation blanket, anti - penetration seam: fiber modules are arranged in " soldier - column type", high-purity fiber blanket is folded in half between each column of fiber blocks and then compressed and packed, so as to compensate the shrinkage possibly generated by the non-expansion surface of the fiber, avoid the occurrence of through holes in the " mosaic floor type" arrangement mode, and the compensation blanket at the furnace wall part is forcedly pressed into the fiber module without nail penetration fixation.

● Diamond - shaped fiber module to reduce thermal bridge: as a new type of multi-purpose high-temperature insulation, the module is fixed on the cold side of the anchor and is not directly exposed to the working hot side compared with the traditional fiber blanket structure, thus reducing the formation of the thermal bridge and the material grade of the anchor and further reducing the cost of the anchor; Meanwhile, the wind erosion resistance of the fiber wall liner is improved.
● Fiber lining with good heat sensitivity and uniform carburization: with ultra-light energy-saving lining material ( ceramic fiber ), the high heat sensitivity of fiber lining is more suitable for automatic control of industrial furnaces. The carburizing furnace has the advantages of uniform furnace temperature, rapid temperature rise, good heat preservation, accelerated workpiece carburizing speed, uniform carbon potential atmosphere, uniform carburizing layer, no leakage when the furnace pressure is increased, and improved production efficiency and carburizing quality.