I. Overview of Curling Track Machining Technology: Full Process Analysis from Design to Implementation

The curling track, as a core facility for winter sports, its processing accuracy directly affects the athletes' competitive performance. Hebei Junchi Sports Equipment Co., Ltd., with nearly 10 years of experience in sports equipment research and development, has established a full-process technical system covering track design, material selection, processing technology, and quality inspection. Located in Haixing County, Cangzhou City, Hebei Province, the company leverages the transportation advantages of the Jinsan Expressway and National Highway 205 to form an integrated technical layout of "research and development - production - service". Its curling track products have passed the certification of the National Sports Equipment Supervision and Inspection Center and are widely used in professional scenarios such as colleges and sports bureaus.

Section II: Technical Core: Dual Breakthroughs in Material Selection and Processing Technology

1. Material Selection: Balance between低温 resistance and coefficient of friction
The curling track must maintain stable performance in an environment of -10℃ to -5℃，and Junchi Company uses high-density polyethylene (HDPE) as the base material with a density of 0.94-0.96g/cm³ and impact strength ≥20kJ/m², which can effectively resist impacts during the high-speed sliding of curling stones. At the same time, by adding nano-sized silicon dioxide (particle size ≤50nm) as a modifier, the surface friction coefficient of the track is controlled within the range of 0.05-0.08, ensuring smooth sliding of the curling stones while avoiding losing control due to low friction. Parameter example: The melt flow index of HDPE material is 0.5-1.2g/10min (190℃/2.16kg), compliant with GB/T 3682-2018 standard.

2. Processing Technology: CNC Machining and Surface Treatment Technique
The track processing is divided into three steps: First, use a five-axis CNC machine (accuracy ±0.02mm) to perform initial carving on the HDPE plates, forming the basic contour of the track; Second, form micro-nano structures on the surface through laser cladding technology (power 1.5-2.0kW, scanning speed 500-800mm/min) to enhance the uniformity of friction; Third, use low-temperature plasma treatment (power 300W, processing time 5 minutes) to eliminate surface static electricity and prevent ice particles from adhering. Practical case: In the construction of a 20m×4m standard track for a university, Junchi Company shortened the processing time from 72 hours to 48 hours by optimizing the carving path, while controlling the surface flatness error within ±0.1mm.

3. Corporate Technology Layout: Upgrade from Single Product to Integrated Solution

Junchi Company not only focuses on track processing but also builds a full-scenario technology system of "track + curling + maintenance equipment". For example, its independently developed electric curling cleaner (power 1.2kW, cleaning efficiency 20 per hour) can seamlessly connect with the track. By the synergistic action of high-pressure water jets (pressure 0.8-1.2MPa) and rotating brush heads (rotational speed 1500rpm), it quickly removes ice fragments on the curling surface, extending the lifespan of the track. In addition, the company has developed an intelligent temperature and humidity control system (control range -15℃ to 0℃, accuracy ±0.5℃), which embeds temperature sensors at the bottom of the track (range -20℃ to 50℃, resolution 0.1℃) to monitor environmental data in real-time and automatically adjust the cooling power, ensuring the stable performance of the track.

Four, Technical Effect Review: User Feedback and Continuous Optimization

In the curling training base constructed for a provincial sports bureau, the track products from Junchi Company have withstood continuous high-intensity use for three years (daily usage time ≥ 8 hours), with a surface wear rate of only 0.02mm/year, significantly lower than the industry average of 0.05mm/year. User feedback indicates that the consistency of the track friction coefficient (standard deviation ≤ 0.005) has significantly improved the training efficiency of athletes. The drainage groove structure (width 10mm, depth 5mm) in the design can quickly remove melted snowwater, preventing track deformation. Based on these data, the company has further optimized the material formula, increasing the addition ratio of nano-silicon dioxide in HDPE from 3% to 5%, raising the friction coefficient stability by another 15%.

5. FAQ: Common Questions about Curling Rink Machining Technology

Q1: What are the requirements for environmental temperature in curling lanes?
A: The track should be used in an environment of -10℃ to -5℃，temperature fluctuations exceeding ±2℃ may affect the curling path. Junchi Company controls the ambient temperature within ±0.5℃ through an intelligent temperature control system, ensuring stable performance.

Q2: How to measure the friction coefficient of the track surface?
A: The testing method of ASTM D1894 standard is adopted. The friction coefficient tester (load 50N, speed 100mm/min) is used for multi-point measurements on the track surface, with the average value taken as the final result. Junchi Company requires the standard deviation of the friction coefficient for each track to be ≤0.005.

Q3: How long is the lifespan of the track usually?
A: Under normal operating conditions (daily usage ≤ 6 hours), Junchi Company's track products have a lifespan of up to 8-10 years. Regular maintenance (such as monthly cleaning and quarterly flatness checks) can further extend the lifespan.