WD-50H صلابة حلقة الأنابيب & آلة اختبار المرونة

ال WD-50H Microcomputer-Controlled Pipe Ring Stiffness & آلة اختبار المرونة is a heavy-duty 50kN laboratory testing system engineered strictly in accordance with ايزو 9969, ايزو 9967, في 13476-1, ASTM D2412, و جيجابايت/ت 9647 المعايير. Designed for pipe manufacturers, civil infrastructure quality control centers, and third-party inspection institutes, it evaluates ring stiffness, ring flexibility, flattening behavior, uniform loading, and continuous creep ratio (1000h/42d) for thermoplastic, composite, and structured-wall pipes up to DN1500 mm.

Featuring a high-rigidity gantry frame (4 columns + 2 ball screws), Class 0.5 load measurement accuracy (±0.5%), and dual 50kN spoke-type load sensors, this heavy-duty Ring Stiffness Testing Machine provides exceptional structural resistance against frame compliance. Equipped with an internal diameter deformation extensometer (180–1500 mm) and an AC servo digital closed-loop control system, the WD-50H delivers certified mechanical profiling across HDPE, PVC-U, ص, and glass-fiber-reinforced drainage and sewer pipes.

Ring Stiffness Testing Machine Standards & Compliance

This microcomputer-controlled universal testing system enables certified testing facilities to conduct standardized structural and deformation evaluations across major global piping frameworks:

Technological Features of WD-50H Ring Stiffness Testing Machine

• High-Rigidity Gantry Frame (4 Columns + 2 Ball Screws)Built with a 4-column optical axis guide framework and twin backlash-free precision ball screws to absorb off-center loading forces and eliminate structural deflection during high-load compression cycles.
• Class 0.5 Ultra-High Load Accuracy & Dual Spoke SensorsIntegrates two high-precision 50kN spoke-type load cells across a 1000 × 400 mm rigid pressure plate. Delivers Class 0.5 force accuracy (±0.5% relative error) with a 1/±500,000 FS force resolution.
• Dedicated Internal Diameter Deflection Extensometer (180–1500 mm)Features an adjustable internal deformation measurement device placed directly within the pipe bore to measure vertical inner-diameter deflection accurately, uninfluenced by external wall thickness variations.
• Multi-Channel Closed-Loop AC Servo ControlPowered by a high-torque AC servo system supporting constant force, constant deformation, and constant crossbeam displacement rates from 0.01 ل 500 mm/min.
• Complete Safety Protection & Multi-Function TestingSupports comprehensive test routines including ring stiffness, ring flexibility, flattening, flexural modulus, and long-term creep ratio (1000h/42d), with built-in travel limits, overload cutoffs, and voice prompts.

Technical Specifications of Pipe Ring Stiffness Testing Machine

Standard System Components & Configuration List

اختبار سير العمل & التطبيقات المستهدفة

سير عمل الاختبار الموحد:

1. Measure specimen length and wall thickness, then position the pipe specimen horizontally under the rigid 1000 × 400 mm compression plate.
2. Install the internal diameter extensometer inside the pipe bore (spanning 180 مم ل 1500 مم) to directly measure vertical inner wall displacement.
3. Configure crossbeam test speed (على سبيل المثال, matching ISO 9969 requirements based on specimen diameter) on the computer control interface.
4. Initiate loading; the dual 50kN spoke load sensors continuously record applied force, while the inner extensometer tracks 3% inner-diameter deflection.
5. The software calculates ring stiffness (kN/m²), logs stress-strain curves, and generates standardized inspection reports automatically.

تطبيقات العملاء المستهدفة:

• HDPE double-wall corrugated, PVC-U structured-wall, and PP underground sewer pipe manufacturers.
• Glass-fiber-reinforced plastic (GRP/FRP) mortar pipe production facilities.
• Civil engineering pipeline testing stations and municipal quality inspection institutes.
• Polymer mechanics research laboratories and university civil engineering departments.

Ring Stiffness Testing Machine FAQ

س1: What pipe diameters and standards can the WD-50H evaluate?

أ: The WD-50H is designed for pipe nominal diameters up to DN1500 mm (with custom frame height available for larger specimens). It tests thermoplastics, corrugated pipes, and composites in compliance with ISO 9969, في 13476-1, and ASTM D2412.

Q2: How does the internal deformation measuring device function during a test?

أ: The internal diameter extensometer is placed inside the pipe specimen (covering 180 مم ل 1500 mm inner diameters). As the rigid pressure plate applies load, the device directly measures vertical deflection inside the pipe bore, transferring real-time deformation data to the closed-loop controller without structural interference.

س3: Why are dual spoke-type load sensors superior for pipe testing?

أ: Large-diameter pipes can exert asymmetric reactive forces when deformed under load. Dual spoke-type load sensors distribute force monitoring across two points on the 1000 × 400 mm pressure plate, canceling out eccentric loading errors and protecting the load cell assembly.