5 results about "Microwave curing" patented technology

This invention relates to the field of adhesive bonding and repair of aircraft structural composite materials, specifically a method for rapid repair of aircraft cracks based on VIMP-microwave technology. The specific steps are as follows: S1, determine the solution; S2, grind; S3, prepare and cut materials; S4, prevent potential corrosion; S5, connect to vacuum; S6, water bath heating; S7, bond; S8, fill the mold; S9, absorb microwaves; S10, cure; S11, secondary grinding. This invention combines the VIMP process with microwave curing technology. By readjusting the adhesive formulation, it shortens the repair operation time and adhesive curing time. Simultaneously, the repair platform can be integrated into a field repair kit for easy transport during emergency repairs.

The application discloses a kind of steel slag cement concrete accelerated curing methods based on three-stage microwave control, including preparation steel slag cement concrete mixture C, after pouring out mixer of prepared steel slag cement concrete mixture C, uniform pouring into test mould, sequentially carried out initial microwave accelerated curing, mid-term microwave curing and later microwave curing in microwave curing equipment;After the end of later curing, concrete component is removed from microwave curing equipment and can be demoulded, then natural cooling to room temperature can complete curing;Three-stage microwave curing strategy is used, by accurately regulating and controlling microwave frequency, power, temperature and heating rate and other parameters of each stage, realize the rapid, uniform heating of concrete, effectively promote the hydration reaction of each component in steel slag cement concrete, accelerate the strength development of concrete, while it can realize efficient, energy-saving, environmental protection curing effect.

This invention discloses a device for manufacturing harmless precast building materials from solidified fly ash products. The device comprises a fly ash pretreatment system, an aggregate supply system, a binder supply system, a mixing and micro-encapsulation system, a molding system, a microwave curing system, and a sensing and control system connected in sequence to each system. After screening and drying, the fly ash is premixed with electrostatically treated multi-grade aggregates in the fly ash adsorption chamber of the aggregate supply system. The premixed material enters the mixing and micro-encapsulation system, where it is mixed with asphalt and resin supplied by the binder supply system. Simultaneously, an encapsulating agent is sprayed through atomizing nozzles for micro-encapsulation. The mixture is pressed into a blank in the molding system and rapidly cured into harmless precast building materials in a microwave curing sealed chamber. This invention achieves intelligent linkage throughout the entire process through the sensing and control system, combined with a multi-layer sealing structure, solving the problems of long curing cycles, high energy consumption, and lack of system integration in existing technologies, thus realizing the efficient and clean resource utilization of hazardous fly ash.

The application relates to the technical field of building technology, and discloses a building waste fiber mixing reinforced solidifying agent aggregate paving process, which comprises the following steps: S1, bottom load layer construction: mixing II-grade building waste recycled aggregate, natural coarse aggregate, polypropylene fiber, slag powder and a bottom layer solidifying agent, uniformly stirring and then paving, and adopting a multi-field coupling compactor to first roll in an impact mode; S2, middle layer transition layer construction: mixing I-grade building waste recycled aggregate, fly ash ceramsite, modified basalt fiber and a middle layer solidifying agent, uniformly stirring and then paving, and statically pressing with a road roller; S3, surface functional layer construction: mixing asphalt recycled aggregate, cement, sand, nano calcium carbonate, water and basalt short-cut fiber, uniformly stirring and then paving, statically pressing with a road roller, and heating with a microwave curing device.

This utility model discloses a microwave vacuum synthetic leather pre-curing device, comprising: a vacuum curing chamber, with magnetrons fixedly connected to both sides of the top of the vacuum curing chamber, waveguides provided at the output ends of the magnetrons, a first motor fixedly connected to the middle of the top of the vacuum curing chamber, a threaded column fixedly connected to the drive end of the first motor, a threaded plate threadedly connected to the outer side of the threaded column, a lower pressure plate fixedly connected to both ends of the bottom of the threaded plate, sliding rods slidably connected to both ends of the threaded plate, the top ends of the sliding rods being fixedly connected to the vacuum curing chamber, and fixed plates fixedly connected to the upper sides of both sides of the vacuum curing chamber. Driven by a second motor, the threaded rods rotate, engaging with the threaded blocks to achieve threaded movement, thereby causing the sealing plate to descend. This facilitates the insertion of the sealing plate into the interior of the insertion base plate, achieving a sealing effect, thus realizing microwave curing in a vacuum environment.