8results about "Preformed elements" patented technology

The utility model relates to a concrete filling device of a double-layer steel pipe interlayer, a double-layer steel pipe comprises an inner pipe and an outer pipe which are arranged in a sleeved mode, a containing cavity is formed between the inner pipe and the outer pipe, the concrete filling device comprises a rotating tray, and the double-layer steel pipe is vertically arranged on the rotating tray in the first direction; the rotating tray is configured to be capable of rotating around the first direction; and the concrete conveying assembly is used for conveying concrete to the containing cavity of the steel pipe through the grouting opening. Under the dual action of centrifugal force and gravity, the concrete flows and is filled in the spiral cavity more smoothly, and the filling efficiency can be improved; in the concrete filling process, air in the cavity can be reversely exhausted, and a smooth exhaust channel is formed; the double-layer steel pipe which is vertically arranged can complete flowing of concrete under low-speed rotation with the help of gravity, the requirement for the rotating speed is low, the double-layer steel pipe can be suitable for steel pipes of various sizes, and the requirement for the strength of filling equipment is lowered.

This invention discloses a method for concealed installation of water supply pipes in a thin-walled membrane structure for modular concrete buildings, comprising the following steps: inserting an inner PB flexible hose into an outer flexible plastic sleeve to form a double-layer combined sleeve; pre-embedding the double-layer combined sleeve within a membrane shell steel mold; pre-embedding a junction box at the water point and connecting it to the double-layer combined sleeve; pouring concrete into the membrane shell steel mold and curing it; connecting the inner PB flexible hose to a horizontal water supply pipe suspended from the prefabricated bathroom ceiling slab via an upper conversion joint; and connecting and fixing the inner PB flexible hose to a faucet or angle valve via a lower conversion joint, thus completing the concealed installation of the water supply pipes in the bathroom functional area. During the water supply pipe installation process in the bathroom functional area, the water supply pipes can be laid within composite beams or shear walls. The inner PB water supply pipes can be pulled out from the junction box using the combined sleeve and junction box, enabling convenient maintenance. The concealed installation of the bathroom water supply pipes is completed in the factory, saving on-site construction time.

The present teachings relate to methods and systems for manufacturing tubular ceramic green bodies convertible to tubular solid oxide fuel cells.

The present teachings relate to methods and systems for making tubular ceramic green bodies that are convertible to tubular solid oxide fuel cells.

The present teachings relate to cartridges and methods for making tubular ceramic structures that can be tubular ceramic green bodies, which are convertible to tubular solid oxide fuel cells.

The present invention provides a conveying pipeline, concrete pumping equipment and a method for manufacturing a conveying pipeline, wherein the conveying pipeline includes a first pipeline and a second pipeline, wherein the first pipeline includes a ceramic pipeline and the second pipeline is a carbon fiber composite material pipeline and is sleeved on the outer wall of the first pipeline. The conveying pipeline provided by the present invention realizes a double-layer structure pipeline of an inner pipe and an outer pipe by sleeve-mounting the second pipeline made of carbon fiber composite material on the outside of the first pipeline including the ceramic pipeline. Compared with the conveying pipeline in the prior art, there is no need to stick ceramic sheets on the inner wall of the outer pipe as a wear-resistant layer, which improves the stability of the inner pipe structure and thus increases the service life of the conveying pipeline. At the same time, by adopting a carbon fiber composite material pipeline as the outer pipe, compared with the outer pipe made of low-carbon steel material, the strength of the outer pipe is guaranteed while reducing the overall weight of the conveying pipeline, thereby facilitating the transportation and installation of the conveying pipeline.

The present teachings relate to modules and methods for making a tubular ceramic structure, which may be a tubular ceramic green body that can be transformed into a tubular solid oxide fuel cell.

The present invention relates to a method and system for producing tubular ceramic green bodies that can be converted into tubular solid oxide fuel cells.