Housing Concrete Prefabricated Component Molds

Housing concrete prefabricated component molds are key industrial equipment that achieve concrete forming through specific structural forms, commonly using steel molds as the main structure. The following provides a detailed introduction from the aspects of types, core functions, design considerations, materials, and manufacturing:

Types

1. Cement House Molds: Evolved from traditional large steel formwork for buildings, these molds are used for factory-prefabricated integral concrete houses. Core components include mold liners, exterior wall molds, bases, and slide rails, with a self-weight exceeding 20 tons. They have undergone four generations of technological upgrades: the first generation featured a simple structure; the second generation achieved vertical wall forming; the third generation supported multi-size adjustments; the fourth generation adopted a fully automatic hydraulic system integrated with electric vibration functions. The molds can be reused for approximately 5-8 years, with wall thicknesses ranging from 14-17 cm and slab thicknesses from 10-13 cm, suitable for production needs in housing factories of different scales.
2. Prefabricated Component Molds: These are divided into independent molds and large base molds. Independent molds use a significant amount of steel and are suitable for projects with a single type of component and a high number of repetitions; large base molds only require the fabrication of side molds, with the base mold being reusable. The main types include large base molds (platforms), composite floor molds, balcony slab molds, stair molds, interior wall panel molds, and exterior wall panel molds, among others.
3. New Modular Concrete Prefabricated House Molds: These are heavy-duty equipment divided into exterior molds and interior liners, capable of pouring concrete into five-sided boxes. They feature flexible assembly and disassembly and a high degree of customization, but the mold costs are relatively high.

Core Functions

• Wet demolding technology enables non-destructive separation of uncured components;
• Wing-shaped torsion spring positioning and slide slot oil lubrication enhance mobility efficiency;
• Modular design of chamfer forming tooling reduces mold modification costs and improves production line adaptability;
• New positioning systems such as magnetic box-fixed side molds enhance structural stability.

Design Considerations

• They must possess sufficient load-bearing capacity, stiffness, and stability to reliably withstand the weight of poured concrete, lateral pressure, and working loads;
• Ensure dimensional accuracy, accounting for concrete setting expansion with allowances, and facilitate easy formwork erection and dismantling, as well as convenient reinforcement installation, concrete pouring, and curing;
• Components must be firmly connected, with embedded parts securely fixed, and the reinforcement protrusion method must balance notch dimensions to avoid grout leakage or demolding issues;
• Balance operational safety and practicality, increasing turnover times through reasonable stiffness design and improving versatility to enhance reusability.

Materials and Manufacturing

• Steel molds are predominantly used, with Q235 steel plates as the main material for the faceplates and structural steel or steel plates for the support structure. Stiffness calculation specifications must be followed, and the design load-bearing capacity must meet requirements;
• Finished products should be coated with machine oil for rust prevention during storage, and structural inspections must be conducted when the number of turnovers is high;
• Current technology focuses on the composite application of automated demolding devices and lightweight materials, exploring the composite application of fiberglass and aluminum alloys, which reduces weight compared to traditional steel molds while maintaining the same stiffness.