In a configuration of a method for preventing progression of corrosion in a steel pipe structure according to the present invention, two or more types of liquids 150 are injected, while being mixed, into a steel pipe that constitutes the steel pipe structure, from an opening at one of both ends of the steel pipe, and the inside of the steel pipe is filled with resin foam product (foam product 152) by foam expansion and hardening of the two or more types of liquids.

A method for producing a vehicle seat member (30) in which a frame member (20) having protrusions (23, 25) is integrally molded to a foamed resin molded body (10) with high dimensional accuracy is provided. The method comprises an in-mold foam molding step of placing the frame member (20) in a mold (100), packing prefoamed resin particles, and molding the foamed resin molded body (10) by in-mold foam molding; and a demolding step of removing the mold (100) to obtain the vehicle seat member (30), wherein in the in-mold foam molding step, the foamed resin molded body (10) is molded so that (BA)/B is 13/1000 or less, wherein A is an outer dimension of the foamed resin molded body (10) in the vehicle seat member (30) obtained by the demolding step and B is an inner dimension of the mold (100) corresponding to the outer dimension.

A method, a device and a computer program for manufacturing a pre-insulated skeleton framing segment for a building to be constructed, wherein an assembly with a hollow space is provided, to which a data carrier is fitted including data from which a quantity of raw materials required for forming a foam insulation layer of a thickness in the hollow space can be determined, which quantity is calculated, and which raw materials are inserted in the hollow space, and foam and harden there during a period.

The present invention is directed to a foam-injected slat and a method of manufacturing thereof used in building fencing, privacy screens, pergolas, louvers, wall claddings, and other similar types of structures. Use of foam-injected slats in the aforementioned structures provides noise reduction, heat insulation, and vibration absorption. In addition, they are lightweight, strong, durable in heavy weather conditions, environmentally friendly, easy to install, and cost effective. Lastly, the manufacturing process enables the forming of a special locking mechanism that further strengthens the foam-injected slats.

A composite structure includes a first face sheet, a second face sheet, and a foam member located between the first face sheet and the second face sheet. The foam member has a molded contour, the mold contour being configured to provide tooling surface for at least one of the first face sheet and the second face sheet prior to curing of the composite structure. A method of making the foam member includes creating a mold tool having an interior surface which resembles the desired outer contour of the foam member. A mixture is poured into a pour opening in the mold tool. The mixture is allowed to polymerize into a foam as the foam expands and distributes within the mold tool. Vent openings in the mold tool are selectively tailored to control the density of the foam member. The foam member is cured in the mold tool.

A composite structure includes a first face sheet, a second face sheet, and a foam member located between the first face sheet and the second face sheet. The foam member has a molded contour, the mold contour being configured to provide tooling surface for at least one of the first face sheet and the second face sheet prior to curing of the composite structure. A method of making the foam member includes creating a mold tool having an interior surface which resembles the desired outer contour of the foam member. A mixture is poured into a pour opening in the mold tool. The mixture is allowed to polymerize into a foam as the foam expands and distributes within the mold tool. Vent openings in the mold tool are selectively tailored to control the density of the foam member. The foam member is cured in the mold tool.

A high-resilience PU spring sponge and a preparing method thereof are provided. The high-resilience PU spring sponge includes a sponge main body and high-strength springs. A top portion of the sponge main body defines a sponge top surface. First grooves are defined on the sponge top surface. A bottom portion of the sponge main body defines a sponge bottom surface. Second grooves are uniformly defined on the sponge bottom surface. The preparing method includes a mold preheating and mold pretreatment step, a material mixing pretreatment step, a slurry introducing step, a slurry foaming curing and demolding step, and a natural curing and finished product processing step. The second grooves are defined on the sponge main body after the sponge main body is cured and the second grooves are formed through the perforated columns. Each of the first grooves is communicated with a corresponding second groove.

Prepregs, composites and articles comprising expandable graphite materials dispersed in a thermoplastic layer are described. In some instances, articles that can be used in an as-produced state may provide a desired sound absorption coefficient or a desired flame spread index, e.g., less than or equal to 25 as tested by ASTM E84 dated 2009. Methods of producing the articles are also described.

A method, a device and a computer program for manufacturing a pre-insulated skeleton framing segment for a building to be constructed, wherein an assembly with a hollow space is provided, to which a data carrier is fitted including data from which a quantity of raw materials required for forming a foam insulation layer of a thickness in the hollow space can be determined, which quantity is calculated, and which raw materials are inserted in the hollow space, and foam and harden there during a period.

A composite structure is provided. The composite structure includes a plurality of components coupled together forming a joint, wherein the plurality of components are oriented such that a gap is defined at least partially therebetween. A filler structure is positioned in the gap, and the filler structure includes a closed cell foam core.