Relying on the provincial enterprise research institute, we have overcome challenges in extreme working conditions, broken through the application bottlenecks of special stainless steel tubes in extreme low-temperature and highly corrosive environments, and filled domestic technical gaps of high-end tubes in nuclear power and deep-sea equipment fields.
We have independently developed intelligent treatment and precision processing technologies for extra-long finish-rolled tubes, with industry-leading key dimensional tolerance accuracy. This greatly improves production efficiency and provides core support for large-scale applications in petrochemical and new energy industries.
With the provincial research institute as a bridge, we deepen industry-university-research-application collaboration, reduce reliance on imported high-end materials, and provide solid material support for the independent and controllable development of China’s high-end equipment manufacturing industry.
With our extra-long automatic tube rolling production line, single seamless tubes formed by one‑step cold rolling can reach over 100 meters in length, a leading level in China.
It features high-speed rolling, with the rolling mill speed reaching up to 240 strokes per minute.
The high-precision finished tubes boast wall thickness unevenness ≤5%, surface roughness Ra≤0.4μm, tube diameter roundness controlled within ±0.05mm, and excellent physical and chemical properties.
This equipment is the first of its kind in China.
It solves the problem of unstable quality caused by manual cleaning, greatly reduces the labor intensity of operators, and improves work efficiency.
The internal structure of the equipment is designed with full consideration of energy conservation and emission reduction. Compared with manual cleaning, it is more energy-efficient and eco-friendly, and reduces environmental pollution.
It is equipped with functions such as rapid heating, precise temperature maintenance and fast cooling.
Products after solution heat treatment feature stable chemical composition, uniform microstructure and bright surface. The grain size can reach Grade 6–7 with no carbide precipitation.
This system is independently developed by our company and has obtained a China National Invention Patent (Patent No. ZL 2013 1 0081113.4).
It can be applied to the vacuum heat treatment of tubes made of high-temperature alloy steel, stainless steel, titanium alloy and other materials. It is especially suitable for solution treatment, stabilization treatment and other heat treatment processes of stainless steel coiled tubes.
Equipment Parameters
Effective Working Zone Dimensions: Φ2000×2500mm (Diameter × Height)
4-zone temperature control Maximum temperature: 1300℃ Working temperature: 1100℃
Ultimate vacuum degree ≤6.0×10⁻³ Pa,Charging pressure ≤6 bar (absolute pressure).
This equipment boasts high precision, high reliability and high efficiency, and is equipped with automatic control and monitoring systems that reach the domestic advanced level. It features automatic and intelligent loading and unloading from the bottom to the top, with the entire feeding and discharging process fully automated and intelligentized.
Eddy current testing can instantly locate defect positions online with sound and light alarms. All alarm eddy current testing signals exceeding the standard are intercepted and uploaded to the intelligent processing center in the office building. The system conducts real-time marking, positioning and cutting, with zero missed detection.
Code Spraying Marking: Each heat exchanger tube is sprayed with a unique code for identification. Every tube has an exclusive serial number and complete testing record, realizing full traceability—the manufacturing time, location, production team, operator and other information of each tube can be fully traced.
It features high precision, high sensitivity and real-time monitoring, ensuring consistent quality throughout the whole steel tube.
Non-contact measurement avoids surface scratches on stainless steel tubes that may occur during manual measurement.
By setting upper and lower tolerances for real-time diameter monitoring, operators can adjust the production line in a timely manner to control tube diameter accuracy.
Uses chloride‑free water
Maximum test pressure: 18 MPa, pressure holding time: 60 s
Meets pneumatic test requirements for various low‑, medium‑ and high‑pressure tubes
Granted 3 national patents: Patent No. ZL 201020144392.6 / ZL 201120115021.X / ZL 201020176154.3
Automatic intelligent welded tube production line, equipped with advanced automatic weld deviation correction system and weld leveling system.
Adopting extra-long stainless steel tube production process, the maximum length of finished tubes can reach 1000m.
High-precision and high-finish welded stainless steel tubes with surface roughness Ra≤0.6μm, tube diameter roundness controlled within ±0.05mm, and excellent physical and chemical properties.
It can instantly detect linear defects and carry out automatic alarm and deviation correction, overcoming the critical weakness that eddy current testing cannot identify linear defects caused by weld offset.
This system can collect signals and upload them to the intelligent processing center for real‑time monitoring.
Developed independently by our company in cooperation with a research institution, this system has obtained the Computer Software Copyright from the National Copyright Administration of China (Certificate No.: Soft Registration No. 0351130).
It optimizes the weld performance of tubes, delivering uniform wall thickness and bright surface.
It avoids the drawbacks of traditional weld grinding—such as damage to the base metal and wall thickness reduction—to meet customers’ special working condition requirements.
