1. Technical Background and Industry Status

Hebei Junchi Sports Equipment Co., Ltd. has been dedicated to the sports equipment industry for nearly 10 years, located in Haixing County, Cangzhou City, Hebei Province. Relying on the advantages of the Jinsan Expressway and National Highway 205, the company has formed a complete industrial chain integrating scientific research, design, production, sales, and service. The company's curling track manufacturing technology integrates materials science, mechanical analysis, and construction techniques, and its products have passed the certification of the National Sports Equipment Supervision and Inspection Center. They are widely used in colleges and universities, sports bureaus, and professional event venues, and have become a leading enterprise in the domestic curling track field.

Two, Core Technology Analysis of Curling Lanes

1. Selection of track materials and performance parameters
The track body is made of high-density polyethylene (HDPE) boards with a density of ≥0.94g/cm³, impact strength of ≥50kJ/m², and low-temperature performance reaching -40℃ without becoming brittle. The surface is treated with special polishing, with the coefficient of friction controlled between 0.05-0.08, meeting the World Curling Federation (WCF) standards. The bottom structure is a composite design of EPS foam boards (density 18kg/m³) and reinforced concrete foundation, with a bearing capacity of ≥200kN/m², effectively dispersing the impact force of the athletes' gliding.

2. Structural Design Principles
The track is designed with modular segments, each measuring 6m in length and 3.66m in width, joined with mortise and tenon structure, ensuring a joint gap error of ≤0.5mm. Gradient control is achieved through laser leveling instruments, with longitudinal gradient ≤0.1% and lateral gradient ≤0.05% to ensure stable sliding paths for curling stones. The drainage system employs concealed PVC pipelines with a gradient of ≥1%, capable of discharging up to 50m³ per hour, suitable for heavy rain and extreme weather conditions.

Step 3: Practical Procedures and Construction Standards

STEP 1: Basic Construction
After site clearance, pour a 200mm thick C30 concrete foundation with pre-buried M16 anchor bolts at an interval of 600mm×600mm. The curing period of the foundation shall be ≥28 days, the flatness error ≤2mm/2m, and the moisture content ≤8%.

Step 2: Track Installation
Successively lay EPS foam boards (thickness 50mm), moisture-proof film (0.2mm thick PE film), and HDPE track boards. Fix the track boards with special adhesive (adhesion strength ≥1.5MPa), and use a hot air gun for welding at the joints (temperature 260℃±10℃), with a welding width ≥30mm.

STEP 3: Surface Treatment
Polished track surface with 2000 grit sandpaper, friction coefficient detection using ASTM D1894 standard tester, one sample taken per 50㎡, data fluctuation range ≤0.01. Mark the home base, starter, etc. areas, spray markings with environmentally friendly acrylic paint (VOC content ≤50g/L).

Part 4: Technical Case Studies and Effectiveness Verification

2023 year, Hebei Provincial Sports Bureau constructed curling track project, total area 1200㎡, adopts double track parallel design. Construction period 45 days, 30% shorter than traditional technology. After WCF certification institution testing, track flatness error 0.3mm/2m, curling sliding distance standard deviation ≤0.5m, athletes feedback sliding smoothness improved by 40%. Currently, the track has hosted 3 provincial and above competitions such as the National Youth Curling Championship, with daily use time exceeding 8 hours, and no cracking, deformation or other quality problems on the track surface.

常见问题与解决方案（FAQ）

Q1: How to handle scratches on the track surface?
A: Gently sand with 1500-grit sandpaper along the glide direction, clean, and then apply special repair wax (hardness 80A). After 24 hours, polish to a mirror-like finish.

Q2: How to prevent ice on winter tracks?
A: Install electric heating system (power 80W/m²), set the temperature sensor to start at 5℃ and stop at 10℃, used with insulation layer (thickness 30mm glass wool) to effectively prevent freezing.

Q3: How long is the track's lifespan?
Under normal use and regular maintenance (comprehensive inspection every 2 years), the lifespan of the track main structure is up to 15 years, and the surface layer needs to be replaced every 5 years.