Well type Annealing Furnace for Bolts Parameter
|
Specification |
Value |
|
Model |
TE-A-MH-E Series |
|
Furnace Type |
Well-Type (Pit-Type), Top-Loading |
|
Working Temperature |
Up to 950°C |
|
Loading Capacity |
4T / 8T / 16T / 20T / 24T / 28T / 32T |
|
Loading Size |
φ1000×H2000 mm up to φ3600×H3400 mm |
|
Heating Method |
Electrical Resistance Heating |
|
Protective Atmosphere |
Methanol Decomposition + Nitrogen |
|
Cooling Method |
High-velocity forced convection fan |
|
Heating Mode |
Convection-dominant for uniform temperature |
|
Insulation |
Ceramic fiber blanket + refractory bricks |
|
Standards |
AMS 2750 / ISO 9001 |
|
Certifications |
CE / ISO 9001 |
|
Customization |
Available (OEM/ODM) |
For Bolts & Fasteners Spheroidizing and softening annealing of carbon steel, alloy steel, and stainless steel fasteners - surface stays bright, decarburization stays within tolerance.
For Automotive Fasteners Uniform annealing for cold heading wire rods and fasteners that demand consistent microstructure and surface quality.
For Aerospace Fasteners High-purity atmosphere for specialty alloy bolts where decarburization control and metallurgical consistency are critical.
For Railway Fasteners & Power Accessories Heat treatment of medium and low carbon steel, alloy steel, and bearing steel wire rods (coils) for railway hardware and electrical fittings.
For Bearing Steel Wire Rods Controlled decarburization on bearing-grade wire rods, ready for downstream forging or machining.
Technical Features
Annealed parts stay clean, no scale, almost no decarb - good spheroidizing, stable quality
Furnace lid uses ceramic fiber blanket - good insulation, light body, low power use
Furnace bottom: layered insulation cotton + firebrick - holds heat well
Convection heating - load is even temperature inside and out, no hot or cold spots
Big high-speed cooling fan - heats fast, saves time and power
Light inner barrel - lasts long, less maintenance
How Does a Vertical Vacuum Annealing Furnace Work?
1.Crane lowers the load into the furnace
2.Seal the chamber, feed methanol decomposition gas + nitrogen to push out oxygen
3.Electric heat, fan blows the hot gas evenly
4.Force-cool, lift the lid, crane pulls the load out
FAQ
1.What materials can it anneal?
Carbon steel, alloy steel, bearing steel, stainless wire rod, and bolt blanks. Mostly spheroidizing and softening anneal.
2.Is well-type the same as pit-type?
Same machine. Well-type means a round chamber loaded from the top; pit-type means it sits below floor level.
3.Why methanol decomposition gas?
It breaks down into CO/H₂/N₂, pushes out oxygen and controls decarb - good for fasteners and bearing steel.
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