Analysis of Mold Splitting Principles and Key Techniques for Complex GRC Shapes

In contemporary architectural design, complex GRC shapes, with their exceptional plasticity and artistic expressiveness, have become the finishing touch of landmark buildings and high-end projects. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group deeply understands the decisive role of mold parting technology in realizing complex shapes. This article systematically analyzes the parting principles and key technologies for complex GRC shapes, providing designers and engineering parties with a full-process solution from drawings to finished products.

1. Core Principles of Parting Design: The Golden Rule of Balancing Art and Engineering

The parting design of complex GRC shapes must follow three core principles. The first is the principle of structural safety: parting lines must avoid stress concentration areas and ensure that the self-weight of a single component does not exceed hoisting limits. For example, in a hyperbolic-surface project for a cultural center in Nanjing, Qinglong used finite element analysis to keep component weight within 50kg, balancing safety and installation efficiency. The second is the principle of shape integrity: parting must preserve design aesthetics to the greatest extent, adopting a "divide and conquer" strategy for complex parts such as openwork reliefs and hyperbolic surfaces. For example, in the Dongguan Women and Children's Activity Center project, a 12m-high irregular relief was broken down into 36 components, with jointing tolerances controlled within 2mm. Finally, the principle of production economy: standardized modular design reduces mold costs. Qinglong's self-developed modular mold system can increase the reuse rate of complex-shape molds by 40%, significantly shortening production cycles.

2. Analysis of Key Technologies: From Digital Design to Precision Manufacturing

In the implementation of parting, digital technology and process innovation are key to solving complex shape challenges. Parametric parting technology builds parametric models with Rhino and Grasshopper, enabling dynamic adjustment of parting lines. Qinglong's technical team once used this technology to complete the parting design of a wave-shaped curtain wall for an international airport, compressing what would have required 30 days of manual parting to just 3 days. 3D scanning and reverse engineering solve the challenge of precisely replicating irregular components: laser scanning captures physical data to generate digital parting plans, ensuring smooth transitions across complex surfaces. In addition, flexible mold technology breaks through the limitations of traditional steel molds, using polymer composite materials to create deformable molds, successfully achieving mass production of GRC components with a minimum radius of curvature of 300mm. This technology has already been put into application at Qinglong's Guangxi production base.

3. Full-Chain Assurance: Qinglong's Parting Technology Advantages and Project Practice

As a national high-tech enterprise and a drafting unit of GRC industry standards, Qinglong has built a full-chain technical assurance system covering everything from parting design to construction and installation. In the design phase, backed by the R&D strength of its provincial-level engineering technology center, it provides BIM collaborative design and parting plan optimization services; in production, automated assembly lines and intelligent curing systems ensure the dimensional accuracy of parted components; in the installation phase, 3D laser positioning technology achieves "zero-error" jointing. From a GRP translucent curtain wall for a landmark project in Malaysia to a UHPC hyperbolic skin for a domestic convention and exhibition center, Qinglong draws on 28 years of technical expertise to deeply integrate parting craftsmanship with material characteristics, providing reliable implementation assurance for complex-shape projects.

The parting technology for complex GRC shapes is a comprehensive embodiment of materials science, engineering mechanics, and digital technology. Qinglong Group has always upheld the philosophy of "professional innovation and constant refinement." Through continuous technology development and project practice, it keeps pushing the boundaries of shaping, injecting more possibilities into architectural art. In the future, as the application of UHPC/GRC/GRG/GRP materials deepens, parting technology will find a better balance between standardization and personalization, driving the architectural decoration industry toward higher precision and greater creativity.