I. 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. Leveraging the advantages of the Jinsan Expressway and National Highway 205, the company has formed a complete industrial chain integrating research and development, design, production, sales, and services. The technology for curling track manufacturing at the company integrates materials science, mechanical analysis, and construction technology. The products have passed the certification of the National Sports Equipment Supervision and Inspection Center and are widely used in universities, sports bureaus, and professional venues, making the company a benchmark in the domestic curling track field.

II. Core Technology Analysis of Curling Track

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

2. Structural Design Principles
The track is designed with segmented modular construction, each section measuring 6m in length and 3.66m in width, joined by mortise and tenon structure with joint gap error ≤0.5mm. The gradient control is calibrated by a laser level, with longitudinal gradient ≤0.1% and lateral gradient ≤0.05%, ensuring the stability of the curling slide path. The drainage system uses concealed PVC pipeline network, with a drainage gradient ≥1%, and a drainage capacity of up to 50m³ per hour, suitable for extreme weather conditions such as heavy rain.

Three, Practical Steps and Construction Standards

STEP 1: Basic Construction
After clearing the site, pour a 200mm thick C30 concrete foundation with embedded M16 anchor bolts at 600mm×600mm spacing. The curing period of the foundation should be ≥28 days, with a flatness error ≤2mm/2m, and 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
Polish the track surface with 2000-grit sandpaper. Friction coefficient detection uses an ASTM D1894 standard testing instrument, with one sample taken per 50㎡, data fluctuation range ≤0.01. Mark the home base, starter, etc. areas, and spray the identification with environmentally friendly acrylic paint (VOC content ≤50g/L).

Four, Technical Case and Effect Verification

2023 year Hebei Provincial Sports Bureau constructed curling training track project, total area of 1200㎡, adopts double track parallel design. Construction period of 45 days, 30% shorter than traditional technology. After inspection by WCF certification organization, track flatness error 0.3mm/2m, curling sliding distance standard deviation ≤0.5m, athletes feedback sliding smoothness increased by 40%. Currently, the track has hosted 3 provincial and above competitions such as the National Youth Curling Championship, daily usage time exceeds 8 hours, track surface without cracking, deformation and other quality problems.

常见问题与解决方案（FAQ）

Q1: How to deal with scratches on the track surface?
Use 1500-grit sandpaper to gently grind along the gliding direction, clean it, then apply special repair wax (hardness 80A), and polish it to a mirror finish after 24 hours.

Q2: How to prevent ice on winter tracks?
A: Install electric heating system (power 80W/m²), set 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's main structure is up to 15 years, and the surface layer needs to be replaced every 5 years.