3results about How to "Flexible shape" patented technology

The invention discloses a reversible metal 4D printing method based on hydrogel reversible deformation and a metal part, and belongs to the field of metal additive manufacturing. The method comprises the following steps: firstly, constructing a three-dimensional model comprising a hydrogel driving layer and a metal blank layer; respectively preparing hydrogel light-cured ink and metal or precursor slurry thereof; printing the two layers of materials sequentially or alternately by adopting a photocuring printer to obtain a composite green body; the hydrogel layer is dehydrated and shrunk through drying, the component is driven to generate preset shape deformation, the hydrogel layer absorbs water and expands through soaking, and reversible recovery of the shape of the component is achieved; and degreasing, selective reduction and sintering heat treatment are conducted on the component, and the compact final metal component is obtained. According to the invention, the independent hydrogel layer is used as a deformation driver, the dependence on the intrinsic phase change characteristic of a metal material is avoided, the material universality is extremely high, the method can be widely applied to 4D printing of various materials including refractory metal and high-reflection metal, and reversible control of shape change is realized.

This utility model relates to the technical field of automotive lighting, specifically to an ambient light. The ambient light includes a headlight base, a light guide bracket mounted on the headlight base, and multiple light guides mounted on the light guide bracket. A PCB board is fixedly connected to the headlight base and the light guide bracket on the same side. A light source controller and multiple LED light sources are mounted on the PCB board. The light source controller is connected to both the body controller and the multiple LED light sources. Each LED light source is connected one-to-one with a light guide. This design features a simple structure, convenient assembly, low production cost, and customizable light-emitting area according to actual needs.

The invention discloses a multifunctional layer thermoplastic composite material manufacturing device which comprises a preheating anti-overflow module, a zoning infiltration module, a zoning preforming module and a curing forming module, and a grading injection module is provided with a plurality of injection ports corresponding to the zoning infiltration module and the zoning preforming module respectively; the preheating anti-overflow module comprises a preheating dehumidification part, an anti-backflow and anti-overflow part and a preheating temperature measurement part; the subarea infiltration module comprises a subarea infiltration combined structure and a supporting body, and the subarea infiltration combined structure is a split or integral structure with an upper structure and a lower structure and is divided into a high-area infiltration structure and a low-area infiltration structure; a gradual-change infiltration runner is arranged in the high-area infiltration structure, and a variable-temperature anti-overflow infiltration runner is arranged in the low-area infiltration structure; temperature adjusting mechanisms are arranged in the high-area infiltration structure and the low-area infiltration structure; and the partition preforming module is connected to the downstream of the partition infiltration module and comprises a plurality of stages of preforming structures, an enclosure heating combined structure and a transition temperature measurement structure which are arranged in sequence.