Our radiation shielding lead bricks are manufactured from electrolytic lead with purity of 99.99% or higher, fully conforming to GB/T 1470-2021. Raw materials undergo vacuum purification and high-pressure casting. The finished product has a density of 11.34±0.03g/cm³, around 3.4 times that of concrete, delivering solid physical properties for radiation shielding.
Designed with mortise and tenon connections, the bricks feature precision-machined trapezoidal or dovetail grooves on edges. The assembly gap is controlled within 0.5mm, and the shear strength reaches no less than 15MPa, effectively eliminating radiation leakage risks.
Core Performance
1.X & Gamma Ray Shielding Performance
Structures with a thickness of 100mm can attenuate over 90% of 100kV X-rays. Walls with a 150mm thickness provide a 2.5mm lead equivalent shielding effect, which fully complies with the medical radiation protection specifications of GBZ 130-2020.
Neutron Shielding Capability
The incorporation of a boron-polyethylene composite functional layer elevates the absorption efficiency of 1MeV neutrons to 99.5%, achieving superior neutron radiation isolation.
Radiation Leakage Suppression
The innovative interlocking tenon structure achieves a 22.7dB reduction in 0.15MeV gamma ray leakage, thoroughly solving the radiation penetration problem at structural joints.
2. Endurance in extreme environments
Temperature span: -50℃ extreme cold to 150℃ hot room environment performance without attenuation (verified by nuclear power plants).
Corrosion resistance: Tolerant to pH 3-11 acid and alkali corrosion, annual surface oxidation <0.01mm.
Ultra-long life: Nano-grain boundary strengthening technology ensures 50 years of maintenance-free (creep resistance increased by 50%).
3. Engineering value breakthrough
Construction efficiency: The modular assembly speed reaches 25㎡/person/day, which is 400% higher than traditional masonry.
Comprehensive cost reduction: The bite design reduces the wall thickness by 20%, reduces the lead consumption by 35% + maintenance cost by 90%.
Dynamic stability: Through the 9-magnitude earthquake simulation, the deformation of the 10-meter-high wall is <1.5mm (verified by the nuclear compartment of the ship).
Core application scenarios
Medical and health field
Radiology protection: PET-CT room (150mm interlocking brick wall, 0.25mm lead equivalent), linear accelerator treatment room neutron shielding layer.
Mobile protection system: interventional operating room lead screen (0.5mm lead equivalent real-time shielding), nuclear pharmacy molybdenum-99 storage and transportation wall (leakage <1μSv/h).
Nuclear energy industry
Reactor neutron moderator (boron brick + cadmium interlayer, absorption rate 99.8%), spent fuel pool double-wall enclosure structure, post-processing plant nitric acid vapor corrosion-resistant wall (annual corrosion rate <0.1mm).
High-end manufacturing and scientific research
Industrial CT 360° curved protection cabin (R≥1.5m customized), isotope battery shielding (weight accuracy ±0.01g/cm³), synchrotron radiation source anti-micro-vibration tunnel.
Quality and safety assurance
Authoritative certification: passed ISO 14126 compression certification (≥28MPa), IAEA RS-G-1.6 radiation safety standard, China Nuclear Power Institute leakage detection (<2.5μSv/h).
Operation specification: Wear lead-proof gloves and masks during construction, storage environment humidity ≤70% (to prevent white rust formation), professional recycling rate of scrapped lead bricks>98%.
Radiation-proof lead bricks are a trinity of density foundation + structural innovation + process breakthrough, becoming the cornerstone guarantee for the safe use of nuclear technology by mankind.
