Heat Treatment Solutions for Fasteners Industry
Fasteners such as bolts, nuts and screws are typically produced in large volumes and require stable heat treatment results. In actual production, the main focus is hardness consistency, surface condition and production efficiency. Our equipment is used in continuous fastener heat treatment lines and post-plating processes.
Common Problems in Fastener Heat Treatment
Unstable hardness in mass production
Temperature fluctuation or uneven loading can cause differences in hardness between batches.
Surface oxidation after heating
Without proper atmosphere control, oxidation occurs during heating, affecting surface quality.
Low throughput with batch furnaces
Batch processing limits output and increases labor cost in high-volume production.
Hydrogen embrittlement after electroplating
Fasteners may crack under stress if hydrogen is not removed after plating.
Fasteners We Can Process
Our furnaces are widely used for:
•Bolts and hex bolts
•Nuts and lock nuts
•Screws and self-tapping screws
•Washers and small hardware parts
•Standard parts used in automotive and construction
Equipment Used in Fastener Heat Treatment
Mesh Belt Quenching Furnace
This is the main equipment used in fastener production. It supports continuous quenching and tempering for large quantities of small parts.
•Continuous operation with stable output
•Controlled atmosphere to reduce oxidation
•Suitable for integration with washing, tempering and oil coating
•Suitable for: fastener heat treatment line, bolt quenching furnace, continuous heat treatment
De-hydrogen Furnace
Used after electroplating to remove hydrogen from fasteners. This process reduces the risk of delayed fracture.
•Stable temperature control for de-hydrogen process
•Can be connected with plating line
•Batch or continuous configuration available
•Suitable for: hydrogen embrittlement relief, fastener post plating treatment
Box / Multi-purpose Furnace
Used for flexible production or smaller batch orders. Suitable for different types of fasteners with varying process requirements.
• Flexible process adjustment
• Can handle different materials
• Suitable for trial production or mixed batches
• Suitable for: small batch fastener heat treatment, flexible production
Looking for a Stable Fastener Heat Treatment Solution?
If you are planning a new fastener heat treatment line or upgrading existing equipment, we can help you define a suitable process based on your parts, capacity and surface requirements.
Response usually within 24 hours. Technical details can be discussed directly.
Process Improvement in Fastener Production
- • Hardness variation between batches reduced
- • Surface oxidation reduced with controlled atmosphere
- • Higher output with continuous furnace operation
- • Lower risk of cracking after electroplating
- • More stable process for large volume production
Typical Fastener Heat Treatment Line
The equipment is often configured as a continuous production line:
Loading → Cleaning → Heating → Quenching (mesh belt furnace) → Washing → Tempering → Oil coating → Drying → De-hydrogen treatment → Unloading
The configuration depends on product grade, surface requirement and production capacity.
CHTEE Industrial Heat Treatment Furnace
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CHTEE provides customized annealing furnaces, quenching furnaces, vacuum furnaces and complete heat treatment solutions for global manufacturers.
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