Heart shaped tin container takes precise technical parameters as the foundation of quality, balancing practicality, safety and delicacy. Every technical parameter has undergone scientific calculation and strict testing. From material specifications, dimensional accuracy to process parameters and performance indicators, it comprehensively presents the product quality strength, making parameters visible and quality traceable. The precise technical parameters not only ensure the durability and adaptability of the product, but also make it suitable for multi-scenarios such as gift customization, small item storage and food storage. Whether it is material purity, dimensional error, sealing performance or process standards, it has reached the high-quality level of the industry. Every set of parameters shows ingenuity, and every indicator can stand the test, allowing users to clearly understand the product strength, choose with confidence and use at ease.

　　Core Technical Parameter 1: Material technical parameters, safe and durable with guarantee. The main body of the container is made of food-grade tinplate, with a material specification of 0.23-0.25mm thick plate, purity ≥99.5%, lead-free and free of harmful heavy metals, complying with GB 4806.9-2016 standard for metal materials and products in contact with food, which can be directly in contact with food without potential safety hazards; the thickness of the tin coating is 2.0-2.5μm, evenly attached to the surface of the plate, with strong adhesion, not easy to fall off or rust, effectively improving the corrosion resistance and moisture resistance of the container; the inner and outer coatings of the can body adopt environmentally friendly epoxy polyester coating, with a thickness of 8-10μm, non-toxic, odorless and high-temperature resistant, with a temperature resistance range of -20℃ to 120℃, not easy to fade or scratch, balancing safety and durability.

　　Core Technical Parameter 2: Dimensional accuracy parameters, regular and uniform without deviation. The overall container is a standard heart shape, and the size has been accurately calibrated. The conventional size: 12cm×11cm×6cm, the mini size: 9cm×8.5cm×4.5cm, the enlarged size: 15cm×14cm×7cm, the dimensional error ≤±0.1mm, ensuring that each container has a regular shape and uniform size; the radius of the heart arc is 5.5-7cm, the arc is smooth and natural without blunt edges; the diameter of the can mouth is 8-11cm, the crimping thickness is 0.4-0.5cm, the crimping width is uniform, and the error ≤±0.05mm, which not only ensures the safety of use, but also improves the overall regularity; the capacity of the container is 300ml (mini version), 500ml (conventional version) and 800ml (enlarged version) respectively, accurately adapting to different storage needs.

　　Core Technical Parameter 3: Process technical parameters, refined and standardized to show quality. Adopting CNC stamping forming technology, the stamping pressure is controlled at 80-100MPa, and the stamping speed is 15-20 times per minute, ensuring that the heart shape is formed in one time without wrinkles or depressions, and the flatness of the can body is ≤0.03mm; the surface polishing process adopts three times of finishing polishing, the polishing speed is 1200-1500r/min, the surface roughness Ra ≤0.8μm, the touch is delicate and smooth, without burrs or defects; the printing process adopts environmentally friendly UV printing, the printing resolution ≥300dpi, the color adhesion ≥level 4, not easy to fade or scratch, and the pattern is clear and three-dimensional; the sealing process adopts silicone sealing ring + precise fitting design, the sealing pressure ≥0.3MPa, the leakage rate ≤0.01ml/min, effectively isolating air, moisture and dust, with excellent fresh-keeping and dust-proof effect.

　　Core Technical Parameter 4: Performance testing parameters, high quality and traceable. The container has passed a number of strict performance tests, the compression resistance ≥1500N, which can withstand daily extrusion and collision, not easy to deform; the drop resistance has passed the 1.2-meter height free drop test, no damage or leakage after dropping, and the can body is intact; the corrosion resistance has passed the neutral salt spray test, the test time ≥48 hours, no rust or discoloration on the surface; the environmental performance complies with RoHS environmental standards, no harmful volatile substances, and can be recycled; the service life is ≥5 years, and it still maintains good performance after long-term repeated use. All parameters have been certified by third-party testing institutions, with guaranteed quality, suitable for long-term use in multi-scenarios such as home, gifts and supermarkets, making each heart-shaped metal container have both quality and practicality.