I. Technical Background and Industry Pain Points

The curling sport demands extremely high standards for track flatness, friction coefficient, and durability. Traditional track processing often faces issues such as material deformation, difficulty in controlling surface roughness, and poor environmental adaptability, leading to short track lifespan and unstable sliding experience for athletes. Hebei Junchi Sports Equipment Co., Ltd., with nearly 10 years of experience in sports equipment research and development, has developed an integrated technical solution that encompasses material selection, precision processing, and surface treatment, specifically tailored to the characteristics of curling tracks, effectively addressing the pain points of the industry.

II. Core Technical Parameters and Process Flow

1. Material selectionThe track is made of high-density polyethylene (HDPE) with a density ≥ 0.94 g/cm³ and impact strength ≥ 20 kJ/m², ensuring the track remains deformation-free and crack-free in an environment ranging from -20℃ to 40℃.
2. Processing accuracySurface processing of the track through a 5-axis CNC milling machine, flatness error ≤ 0.1mm/m, roughness Ra ≤ 0.8μm, meeting the World Curling Federation (WCF) standards.
3. Surface TreatmentUsing laser micro-engraving technology, a uniform concave groove structure is formed on the track surface, with the coefficient of friction controlled within the range of 0.04-0.06, balancing sliding speed and the accuracy of curling control.
4. Sewing techniqueThe track module is assembled using mortise and tenon joints, combined with high-strength structural adhesive, ensuring a joint gap of ≤0.05mm, to guarantee the overall flatness and stability of the track.

Section 3: Technical Advantages and Applicable Scenarios

1. Environmental adaptabilityThe track material passes the -40℃ low-temperature brittleness test, adaptable to the severe cold climate in the north; the surface UV-resistant coating can extend the outdoor service life to over 8 years.
2. Modular designThe track is made of standardized modules (3m x 1.8m), supporting quick installation and disassembly, suitable for various scenarios such as indoor curling rinks, temporary event sites, and school training grounds.
3. Maintain convenienceThe slightly concave groove structure reduces ice chip accumulation, daily cleaning only requires a high-pressure water jet, and maintenance costs are reduced by 40% compared to traditional tracks.

4. Corporate Technology Layout and Application Cases

Hebei Junchi Sports Equipment Co., Ltd. relies on its production base in Haixing County, Cangzhou City, to build a full-chain technological system covering material research and development, precision processing, and quality inspection. The company is equipped with German imported laser cutting machines, Japanese Mitsubishi CNC milling machines, and other equipment, with an annual production capacity of up to 5,000 square meters of curling track.
At the 2023 National Winter Games, the company provided a full set of track solutions for the Harbin Curling Training Base. The project uses HDPE material + laser micro-engraving surface treatment technology, has been tested by the WCF certification body, and the track friction coefficient stability reaches 98.7%, with athletes reporting a "smooth and controllable" sliding experience. After the project delivery, the track has been in continuous use for 2 years without deformation, and the maintenance cost is 35% lower than that of traditional tracks.

V. FAQ: Common Questions about Curling Track Processing

Q1: What special requirements do curling tracks have for materials?
Material must have high density, impact resistance, and low-temperature resistance, and must pass the WCF standard friction coefficient test. Hebei Junchi selects HDPE material, which has higher density and impact resistance than ordinary polyethylene, ensuring stable use of the track under extreme conditions.
Q2: How to ensure the smoothness of the track surface?
A: Precision machining achieved through a 5-axis CNC milling machine, supplemented by real-time flatness detection with a laser interferometer, controlling errors within 0.1mm/m. The jointing process utilizes mortise and tenon structure + structural adhesive to further minimize gaps between joints.
Q3: What is the function of the slight concave grooves on the track surface?
A: The slight concave grooves reduce the contact area between ice chips and the track surface, lowering the coefficient of friction fluctuations, and providing a stable sliding path for the curling stone. Hebei Junchi ensures uniformity of groove depth ≤0.02mm through laser micro-engraving technology, enhancing the athletes' control accuracy.