Typical Mold Development Cycle for UHPC Formwork Components and Analysis of Influencing Factors

In the field of architectural decoration, UHPC shaped components have become the texture of choice for high-end projects thanks to their outstanding mechanical properties and artistic expressiveness. As an industry expert with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group deeply understands the critical impact of mold development cycles on project delivery efficiency. This article systematically analyzes the typical mold development cycle for UHPC shaped components and the core influencing factors, providing designers and owners with precise project planning references.

### I. Baseline Cycle Framework for UHPC Shaped Component Mold Development Under normal circumstances, the mold development cycle for UHPC shaped components must be considered in tiers according to component complexity: molds for standard geometric shapes (such as flat panels and right-angle moldings) typically take 15-25 days to develop; customized components with simple curves or textures (such as curved sunshades) require 30-45 days; while complex artistic shapes such as hyperbolic surfaces and openwork reliefs (such as irregular curtain wall units for landmark buildings) may extend to 60-90 days. This cycle covers the entire process from design deepening and material selection to trial mold verification. Relying on the standardized production lines at its Guangxi Nanning production base, Qinglong Group can achieve 10-15% efficiency optimization over the baseline cycle.

### II. Five Core Factors Affecting the Mold Development Cycle **1. Shape Complexity and Precision Requirements** The geometric form of components directly determines mold development difficulty. Parametrically designed hyperbolic components (such as streamlined skins with a minimum radius of curvature ≤300mm) require five-axis machining centers for mold milling, increasing the production cycle by more than 40% compared to traditional wooden molds. In the translucent concrete project for Century Plaza on Nanjing East Road, which Qinglong Group participated in, the components featured gradient translucent openings and curved surfaces, so 3D scanning technology was introduced during the mold development stage to control precision within ±0.5mm, ensuring "zero-error" joints during later installation.

**2. Mold Material and Process Selection** The durability and molding effect of mold materials must be considered in balance: wooden molds are suitable for short-term, small-batch production, with short development cycles but a tendency to deform; fiberglass (GRP) molds can replicate complex textures, with a production cycle 20% longer than wooden molds, but can meet turnover requirements of more than 500 uses; steel molds, though more costly, guarantee the flatness of extra-large components (such as long panels over 6 meters), with a development cycle typically 30% longer than that of GRP molds. Qinglong's technical team provides cost-effectiveness-optimized material selection solutions based on project scale and shape requirements.

**3. Design Deepening and Collaboration Efficiency** The efficiency of information transfer during the drawing deepening stage significantly affects the cycle. In a commercial complex project, the lack of BIM collaboration between the architectural design institute and the mold manufacturer resulted in 3 rounds of drawing revisions and a 25-day extension of the mold development cycle. Through its self-developed BIM collaboration platform, Qinglong Group enables real-time model connection with designers, compressing the design confirmation cycle to one-third of the traditional process, and once helped the Dongguan Women and Children's Activity Center project complete GRC curtain wall mold delivery 15 days ahead of schedule.

**4. Production Process and Equipment Capability** The sophistication of mold processing equipment directly determines production efficiency. The five-axis linkage machining center equipped at Qinglong's Nanning base enables one-time forming of complex cavities, reducing processing time by 50% compared to traditional three-axis equipment. Meanwhile, using 3D printing technology to create mold prototypes allows rapid validation of shape rationality, compressing the trial mold adjustment cycle from the traditional 7 days to within 3 days.

**5. Industry Standards and Quality Control** As a participating unit in formulating the industry standard "General Technical Conditions for Non-Load-Bearing Ultra-High Performance Concrete (UHPC) Components," Qinglong Group strictly implements internal control standards 10% higher than national standards in mold development. For example, mold surface roughness must be below Ra1.6μm to ensure the mirror finish of UHPC components. Although this refined control adds 3-5 days to the inspection cycle, it prevents later product rework caused by mold defects at the source.

### III. Qinglong Group's Cycle Optimization Solutions Facing the cycle challenges of complex projects, Qinglong Group has built a "three-dimensional assurance system": on the technical front, through parametric design and a modular mold library, it achieves mold reuse for 80% of standard components; on the production front, it adopts a concurrent engineering model to advance mold processing and material preparation simultaneously; on the service front, it provides full-process technical support from deepened design to installation guidance. This systematic capability enabled Qinglong, when undertaking a landmark project in Malaysia, to successfully control the mold development cycle for hyperbolic UHPC curtain walls within 45 days, 30% shorter than the industry average.

The mold development cycle for UHPC shaped components is a comprehensive reflection of technical strength and project management. As a national "Specialized, Refined, Distinctive, and Innovative" enterprise, Qinglong Group has always upheld the mission of "creating beautiful architecture." Through 28 years of technical accumulation and full-chain service capabilities, it provides customers with customized solutions that balance efficiency, precision, and cost. Choosing an experienced UHPC manufacturer is not only a guarantee of project quality, but also precise control over the efficiency of realizing architectural art.