Produits et services

Semi-processed acid proof material composed of polymer vinyl resins combined with inert pigments and plasticizers used for lining or coating steel or concrete pipes, structures, tanks, vats, walls, and floors.

Produits et services

(1) Semi-processed acid proof material composed of polymer vinyl resins combined with inert pigments and plasticizers used for lining or coating steel or concrete pipes, structures, tanks, vats, walls, and floors.

Abrégé

Mortar-coated steel pipe comprise a steel cylinder having a mortar layer disposed therein, such mortar layer being free of any metallic reinforcement. An overcoat is disposed over the mortar layer and is formed from a material that is a dielectric and/or a barrier to moisture and oxygen entering the mortar layer, e.g., a polymeric material. The pipe may include a further concrete or mortar layer disposed over the overcoat, forming an outermost pipe surface. The outer layer can be cement, mortar, or other material. The mortar layer thickness is about 2 to 30 mm, the overcoat thickness is about 0.1 to 2 mm, and any outer layer thickness is about 1.2 to 4 cm. The pipe is made by compression coating method, where mortar layer and overcoat are applied simultaneously. When an outer layer is desired, it is preferably applied at the same time as the mortar layer and overcoat.

Classes IPC  ?

• F16L 1/028 - Pose ou récupération des tuyaux sur ou dans la terre, p. ex. au-dessus du sol dans le sol
• F16L 9/14 - Tubes en matériaux composites, c.-à-d. faits de matériaux non complètement couverts dans un seul des groupes précédents
• F16L 58/06 - Revêtements caractérisés par les matériaux utilisés de ciment, béton ou similaire
• F16L 58/10 - Revêtements caractérisés par les matériaux utilisés de caoutchouc ou de matériaux plastiques

Abrégé

Pressure cast lined steel pipes comprise an annular concrete or mortar liner along an inside diameter, and a metal shell surrounding the liner, wherein the liner is in direct contact with the metal shell. The wall thickness of the liner can be from 10 to 50 times the thickness of the metal shell. The pipe may be coated with a dielectric material. A mold assembly used to form the pipe includes an annular concrete or mortar composition chamber formed between the metal shell and an inner mold member. Pressurized water is used in the mold assembly to pressurize the concrete or mortar composition and exert a desired pressure force onto the metal shell while the composition cures in the mold. Once a desired degree of cure is achieved, the pressure is removed causing the metal shell to exert a desired compression force onto the cured liner.

Classes IPC  ?

• F16L 9/00 - Tuyaux rigides