I. Technical Background and Industry Positioning

Hebei Junchi Sports Equipment Co., Ltd. has been dedicated to the sports equipment industry for nearly 10 years. Its curling track technology relies on an independently developed composite material system and modular structural design, forming a full-process technical layout covering material research and development, track laying, and maintenance. Located in Haixing County, Cangzhou City, Hebei Province, the company leverages the geographical advantages of the Jinsan Expressway and the Bohai Bay to build a nationwide curling track technical service network. The products are widely used in professional sports venues, school sports facilities, and commercial curling clubs.

Chapter II: Core Technology Analysis: Material and Structure Innovation
1. Track material system
The track surface is made of a composite material of high-density polyethylene (HDPE) and nano-grade abrasion-resistant additives, with a thickness of 8-12mm, and the friction coefficient is stable between 0.05-0.08, in compliance with the World Curling Federation (WCF) standards. The sub-base is a mixture of EPDM rubber granules and polyurethane adhesive, with a thickness of up to 50mm, featuring excellent shock absorption (impact absorption rate ≥ 45%) and aging resistance (weather resistance test reaches 5000 hours).
2. Modular structural design
The track is assembled from modular units of standard size 2m×1m, with each module weighing less than 80kg, facilitating rapid installation and local replacement. Hidden clips are used for connecting the modules, and with the temperature-adaptive expansion joint design, it can adapt to environmental temperature changes from -20℃ to 40℃, ensuring the track flatness error is ≤2mm/2m.

3. Practical Steps: Track Construction and Commissioning

Step 1: Basic Processing
Before construction, ground flatness must be checked; use a laser level to ensure the base error ≤5mm/2m. If the foundation is concrete, moisture-proof treatment (apply epoxy resin primer) is required; if it's a steel structure foundation, add 5mm thick rubber shock absorber pads.
STEP 2: Module Laying
Modules are laid symmetrically from the center line of the track, with special wrenches used to secure the buckle connections. After every 5 modules are laid, a 2m level is used to check flatness, and adjustments are made by adjusting the adjustable feet below the modules (adjustable range: 0-10mm) for alignment.
STEP 3: After surface treatment is completed, use a professional polishing machine to shine the track surface, eliminating module joint marks. Then, apply a special curling lubricant (containing silicone oil), forming a lubricating layer with a thickness of 0.1-0.2mm to reduce the sliding resistance of the curling stone.
STEP 4: Performance Testing
Sliding tests are conducted using standard curling stones (weight 19.96kg, diameter 30cm), recording the sliding distance and track deviation from start to stop. Test data must meet the following requirements: sliding distance 15-18m, track deviation ≤50mm/10m.

4. Typical Case: A Provincial Curling Training Base Project
1. Project Background
The base requires the construction of a 4-lane curling training rink in compliance with WCF standards, which should have high wear resistance (daily usage time ≥ 8 hours) and low maintenance costs (annual maintenance cost ≤ 50,000 yuan).
2. Technical Solution
Adopting Hebei Junchi's third-generation composite material track, with the surface adding silicon carbide abrasion-resistant particles (particle size 50-100μm), the friction coefficient is increased to 0.07, and the wear resistance is improved by 30%. The base layer uses a double-layer EPDM rubber structure (upper layer 30mm/lower layer 20mm), with an impact absorption rate of up to 52%, effectively protecting the athletes' joints.
3. Application Effect
After project delivery, the track flatness error is 1.5mm/2m, the sliding distance stability (standard deviation) is ≤0.3m, meeting professional training requirements. After 1 year of operation, the maintenance cost is only 42,000 yuan, a 40% reduction compared to traditional tracks.

Five, FAQ: Common Technical Questions about Curling Rink
Q1: How to handle scratch on the track surface?
A: Minor scratches can be filled locally with a special repair paste (containing polyethylene micropowder), while scratches deeper than 0.5mm require module replacement.
Q2: Does the track crack easily in low-temperature conditions?
Company's track materials pass the -40℃ low temperature brittleness test, coupled with 2mm expansion gaps reserved between modules, ensuring normal operation at -20℃ environments.
Q3: How to determine if the track needs to be resurfaced?
When the track surface wear leads to a friction coefficient exceeding 0.1, or the base shock-absorbing layer thickness loss exceeds 30%, it is recommended to replace the entire track.