One, Enterprise Technical Layout and Industry Positioning

Hebei Junchi Sports Equipment Co., Ltd. has been deeply involved in the sports equipment industry for nearly 10 years, leveraging the location advantage of Haixing County, Cangzhou City (only 500 meters away from the Haixing exit of Jinshan Expressway), and has established a complete technical system integrating R&D, design, production, and sales. The technical team accounts for over 30% of the company, owning 12 utility model patents covering key areas such as equipment structure optimization and material weather resistance improvement. Its curling equipment production line has passed the ISO 9001 quality management system certification, with an annual production capacity of 5,000 sets, meeting all categories of training and competition needs.

II. Core Technology Analysis of Curling Equipment Manufacturing

1. Material Selection and Process ControlThe curling stone body is made of high-density granite (density 2.7-2.9g/cm³), precision machined on CNC machine tools, with surface roughness controlled within Ra0.8μm, ensuring a stable friction coefficient between 0.03-0.05 with the ice surface. The handle section is made of aviation-grade aluminum alloy (6061-T6), with corrosion resistance enhanced by anodizing treatment, and the grip area is embedded with anti-slip silicone layer (thickness 2mm, Shore hardness 35A), suitable for use in environments ranging from -20℃ to 40℃.

2. Center of gravity balancing technologyThrough 3D modeling software, the curling trajectory is simulated to optimize the distribution of internal counterweights (copper alloy, density 8.9g/cm³), ensuring a center of gravity offset ≤0.5mm for stable rotation during throwing. Measured data shows that the product's straight-line offset rate is 18% lower than the industry average, and the rotation decay rate is optimized by 22%.

3. Typical Application Cases and Technical Verification

At the 2023 National Winter Games, Hebei Junchi provided 300 sets of competition-grade curling equipment for the event. According to the National Sports Equipment Supervision and Inspection Center, the product's surface friction coefficient standard deviation is only 0.002, far exceeding the national standard requirement of 0.005; after continuous use for 72 hours under a low temperature of -15°C, there is no loosening at the handle and vessel connection, and the surface coating has a wear resistance of up to 5000 rotations (Taber abrasion tester), meeting the international competition equipment standards.

4. Technical Advantages and Industry Adaptation Scenarios

1. Full-scenario adaptabilityThe product line covers full specifications for training (weight 17-19kg), youth (weight 14-16kg), and competition use (standard 19.96kg), supporting universal indoor and outdoor rink design. The pot bottom is equipped with a replaceable polyethylene track (thickness 5mm, hardness 65 Shore D), suitable for different ice surface hardness.

2. Customized serviceOffering logo laser engraving, color customization (supporting PANTONE color card matching), special size processing services, with a minimum order quantity of only 50 sets, delivery cycle of 15 working days, and meeting the personalized needs of customers such as clubs and schools.

5. Technical FAQ Explanation

Q1: How is the low-temperature performance of curling equipment ensured?
A: Triple protection design: ① Pot body bonded with cold-resistant epoxy resin adhesive (no cracking at -40℃); ② Metal parts undergo low-temperature brittleness testing (passing the -30℃ impact test); ③ Silicone handle added with antifreeze (15% of active ingredients), ensuring elasticity remains unchanged in low-temperature conditions.

Q2: How to determine if the curling quality meets the standard?
A: Key indicators include: ① Weight deviation ≤ ±50g; ② Roundness error ≤ 0.3mm; ③ Surface hardness ≥ 500HV (Vickers hardness tester); ④ Rotation attenuation rate ≤ 35%/10 seconds (high-speed camera trajectory analysis). All products of Hebei Junchi pass the full-range inspection by the National Sports Equipment Quality Supervision and Inspection Center.