I. Technical Background and Industry Demands

Curling, as a winter sport combining skill and strategy, demands high precision in track flatness, friction coefficient, and durability. Hebei Junchi Sports Equipment Co., Ltd., with nearly 10 years of experience in sports equipment research and development, has established a mature technical system in the field of curling track design and construction. This article will systematically analyze its technical practice from aspects such as track material selection, construction technology, performance parameters, and practical application cases.

Section II: Material Selection and Performance Parameters

1. Ice surface materialHigh-density polyethylene (HDPE) sheets, thickness of 8-10mm, surface friction coefficient controlled between 0.05-0.08, ensuring the stability of curl sliding. Material impact strength ≥50kJ/m², suitable for -20℃ to 40℃ ambient temperature.

2. Basic structureComposed of concrete base layer, waterproofing layer, insulation layer, and ice surface layer. Concrete strength grade C30, flatness error ≤2mm/2m; insulation layer uses XPS extruded board, thermal conductivity ≤0.03W/(m·K), effectively reducing the risk of ice surface melting.

3. Refrigeration systemChoose R404A environmentally friendly refrigerant, with a mixing accuracy of ±1%, the compressor power is matched according to the track area (e.g., a 60m² track is equipped with a 15HP compressor), with a refrigeration efficiency of 3.5kW/m², ensuring uniformity of ice surface temperature ±0.5℃.

Section 3: Construction Techniques and Quality Control

STEP 1: Basic ProcessingClear the site of debris, pour C30 concrete foundation layer, use laser levelling machine for flatness control, curing period ≥28 days.

STEP 2: Insulation Layer InstallationXPS extruded board is pasted on the base layer, sealed with special tape at the joints, thickness deviation ≤1mm, to avoid cold bridge phenomenon.

STEP 3: Ice Layer InstallationThe HDPE boards are connected by hot-melt welding, with a welding strength ≥ 80% of the base material strength. After welding, the flatness is re-measured, with an error ≤ 1.5mm/2m.

STEP 4: Refrigeration System TuningAfter refilling the refrigerant, monitor the ice surface temperature distribution for 24 hours, adjust the compressor power through variable frequency technology to ensure uniformity of temperature.

Four, Actual Application Case: Curling Club Project of a Certain University

1. Project BackgroundAn institution of higher education needs to build an curling rink that meets international event standards, with a track area of 120m², requiring ice surface temperatures between -5℃ and -3℃, and flatness error ≤1mm/2m.

2. Technical SolutionThe refrigeration system utilizes double-layer HDPE boards (total thickness 12mm), is equipped with a 30HP compressor, temperature control by zones, and the insulating layer thickness increased to 80mm.

3. Implementation EffectivenessUpon project acceptance, the measured ice surface flatness was 0.8mm/2m, temperature uniformity was ±0.3℃, no cracking or deformation occurred after 3 months of operation, and it received high recognition from the school.

V. Technical Advantages and Industry Value

Hebei Junchi Sports Equipment Co., Ltd.'s curling track technology achieves a balance between ice surface performance and construction efficiency through material optimization and process innovation. The technical solution has been applied in over 20 curling venues across the country, including university training halls, commercial curling clubs, and local sports centers, providing reliable infrastructure support for the popularization of curling. In the future, the company will continue to deepen refrigeration technology and material research and development, promoting the development of curling tracks towards greater energy efficiency and durability.