4results about How to "Avoid bubbling" patented technology

This application provides an LCP thin film assembly, its preparation method, and its application. The preparation method includes: surface modification of the LCP thin film to obtain an activated surface rich in carboxyl and hydroxyl groups, followed by hot pressing of the LCP thin film with the activated surface; the LCP thin film assembly includes a multilayer LCP thin film bonded by hot pressing, wherein no adhesive is contained between any two adjacent LCP thin films, and the interface region between any two adjacent LCP thin films forms a homogenized molecular-level bonding layer through melt recrystallization; the preparation method of this application introduces active functional groups through surface modification methods such as alkaline hydrolysis and acid activation, achieving interlayer chemical bonding during hot pressing, significantly improving interlayer bonding strength, avoiding the risks of bubbling and delamination, and retaining the inherent excellent high-frequency performance and dielectric properties of the LCP thin film; this preparation method, when applied to the preparation of LCP thin film probe cards, can produce thin film probe cards with excellent interlayer bonding strength and high-frequency performance.

This invention relates to a continuous through-type integrated spraying and drying equipment, comprising a conveyor belt, a cabinet panel heating seat, a housing, a painting assembly, a preheating assembly, and a drying assembly. The cabinet panel heating seat is mounted on the conveyor belt and includes a heating plate capable of heating the cabinet panel, and a temperature sensor electrically connected to the heating plate. The housing covers the conveyor belt and is provided with a first partition plate and a second partition plate spaced apart along the conveying direction to sequentially divide the internal space of the housing into a painting chamber, a preheating chamber, and a drying chamber. The painting assembly is located inside the painting chamber and above the conveyor belt, and is used to spray paint on the top surface of the cabinet panel. The preheating assembly heats the preheating chamber so that when the cabinet panel heating seat enters the preheating chamber, the temperature sensor detects the temperature rise and activates the heating plate. The drying assembly heats the drying chamber. Compared with the prior art, this invention avoids the problem of paint blistering caused by "the surface layer of the paint drying first, but the inner layer still retaining high moisture content."

The utility model relates to spraying equipment technical field discloses a kind of annular part spraying equipment for airplane engine, including spraying cabinet, the inside of spraying cabinet is sequentially provided with adjusting assembly, cleaning assembly and drying machine from left to right, the inside of spraying cabinet is opened with transport, and the inside of transport is equipped with conveyor belt, the inside of spraying cabinet is provided with spraying chamber, and the side wall of spraying chamber and spraying cabinet is equipped with filtering mechanism;The adjusting assembly includes two electric push rods, two are respectively fixedly connected in the outside of spraying cabinet two sides, and the output end of two electric push rods is fixedly connected with bow plate. In the utility model, by adding cleaning and drying module, improve coating adhesion and uniformity, improve spraying quality and service reliability. At the same time, the filtering mechanism in spraying chamber removes suspended particles and waste gas, keeps environment clean and stable, and replaces activated carbon filter plate through quick-release assembly, realizes green environmental protection discharge.

The utility model discloses a kind of PVC floor circulation heating segmented edge compression forming devices, including workbench, the limit cylinder is installed in the both ends of compression roller, the circular through-hole is opened in the middle of compression roller, heat conduction cylinder is installed in the circular through-hole, the heat conduction cylinder can be telescopic in circular through-hole to adjust heating area, two constant temperature ovens are installed on the workbench, heat conduction oil is equipped in the constant temperature oven, heat conduction oil flows in constant temperature oven and heat conduction cylinder by circulating pump.The beneficial effects of the utility model are that heat conduction cylinder can be telescopic in compression roller to adjust heating range, can reduce heat energy waste, heat conduction oil can flow between constant temperature oven and heat conduction cylinder by circulating pump, can be convenient for heating compression roller, the edge of PVC floor can be compressed by two groups of compression roller segmentation, can be convenient for hot-pressing, prevent PVC floor surface from forming bubble, ensure floor flat, improve hot-pressing effect.