Bright Annealing Tube
Bright annealing tube under a reducing atmosphere or in a vacuum protection, after high temperature solid melting and rapid cooling to get the stainless steel tube, requiring the inner surface has a very good surface roughness and cleanliness, is a comprehensive consideration of organizational...
Bright annealing tube under a reducing atmosphere or in a vacuum protection, after high temperature solid melting and rapid cooling to get the stainless steel tube, requiring the inner surface has a very good surface roughness and cleanliness, is a comprehensive consideration of organizational stability corrosion resistance and workability of the pipe.
Bright annealed tube inner surface roughness Ra values and their own cleanliness is extremely demanding, so the particles can occur during transport and accumulation of fluid retention has been effectively curbed. In addition, the chemical composition of the pipe and the base material dimensional tolerances need to be strictly controlled to ensure the weldability of steel and the welding quality in the welding fumes, which can reduce the occurrence of particle generation and improving the corrosion resistance of welded parts, and smoothness.
Bright annealing tube production control:
- Smelting raw materials must have good control, the level required to meet the microstructure times better level.
- Cold rolling volume control and reasonable within the organization in order to avoid defects.
- Mold control, to ensure the inner and outer surface roughness R a ≤ 0.8μm.
- Bright annealing control to ensure reasonable mechanical properties and surface brightness, and eliminate the pass mechanical polishing (MP), to ensure the smoothness of the inner surface under microscopic state, to avoid transmission fluid residues.
- Cleaning the control surfaces should have the products delivered better cleanliness and cleanliness, with metallic colors, no oil adhesion, oxide adhesion.
- Single hats loss prevention bagging, overall braid or wooden packaging.
The material of the stainless steel round bar is from Yongxing Special Steel China, we control the quality from the very start. We polished three times to make sure the surface is perfect bright and smooth, and without any deficiency in quality.
We have precision equipment to test according to the standard required and check the material before delivery.
Tube Bright Annealing Line Features
The Tube Bright Annealing System’s Innovative design allows for easy changeover between various diameter product, and each system is equipped with precision automatic power control.
- Designed for ease of operation and maintenance
- Automatic speed sensor controls power proportionate to line speed
- Recipe storage and retrieval
- Integrated temperature sensing
- High wear ceramic tube guides
- Integrated pumping system
- Solid state inverters
Quench/Controlled Atmosphere Containment Details:
- Contained Atmospheres – Nitrogen, Nitrogen with up to 4% Hydrogen, Argon, Argon with Hydrogen
- Carbon Contact or Optional inert gas quench available
- Save money with Optional gas recycling
- Control the environment with precision with optional gas manufacturing and mixing control and sensing subsystems
- Gas Impingement Quench – Finished, high quality surface
Material stainless steel grades:
Also known as "marine grade" stainless steel due to its increased ability to resist saltwater corrosion compared to type 304. SS316 is often used for building nuclear reprocessing plants.
304/304L stainless steel
316/316L stainless steel
310S stainless steel
317L stainless steel
321/321H stainless steel
Duplex 2205(UNS S31803)