58results about How to "Simple demoulding" patented technology

The invention relates to a lightweight compounded outer wallboard and the manufacturing method thereof. And it is compounded of fiber or wire fabric reinforced cement slab and bearing layer, where the bearing layer is made of reinforcing fabric reinforced light aggregate concrete, one or two sides of the bearing layer are combined with cement slabs and a cavity in the bearing layer is enveloped by light aggregate concrete and full of heat insulator. And its manufacturing method comprises a process as follows: A. placing cement slabs on one or two sides in a die space; B. placing reinforcing fabric provided with heat insulator in the middle by the cement slabs in the die space; C. pouring light aggregate concrete in the die space to bury the reinforcing fabric; and D. staying, curing and hardening and then demoulding to make it. And the method is simple, practical, high-efficiency and it has advantages of lightweight, high intensity, strong bearing capacity, good heat insulating property, seismic resistance, seepage prevention, etc.

The invention relates to a polyurethane lining die of an AMF sand box. The polyurethane lining die of the AMF sand box comprises a sand box, a die base, a long-side baffle plate, a short-side baffle plate, a sand shooter hole die and an exhaust hole die, wherein the sand box is fixedly mounted at the upper end of the die base; the long-side baffle plate and the short-side baffle plate are symmetrically and fixedly mounted in a cavity defined by the sand box; the sand shooter hole die is mounted on the long-side baffle plate; a plurality of hoisting handles convenient for hoisting and moving are symmetrically manufactured around the die base; concave grooves for positioning and embedding the baffle plates are formed in the middle part of the die base, so as to ensure accurate mounting positions of the long-side baffle plate and the short-side baffle plate; a straight positioning iron block and an L-shaped positioning iron block are respectively arranged on the surface of the die base, outside the concave grooves. According to the polyurethane lining die of the AMF sand box, the polyurethane lining is integrally poured, so that the finished product of polyurethane has an accurate dimension, and the problem of different shrinking percentage of polyurethane holes in different positions can be solved; the polyurethane lining is adhered by a chemical manner, thus improving the adhering force between the polyurethane and a metal sand box.

The invention belongs to construction field of concrete structure and particularly relates to mold for concrete and construction field, which includes a mold carrier, a magnetic attraction body, a magnetic attraction particle, an elastic tube body, a cover plate and the like. The magnetic attraction body is arranged on the mold carrier. The magnetic attraction particle is arranged in elastic tube body. The elastic tube body provided with the magnetic attraction particle twines on the mold carrier provided with magnetic attraction body. The mold for concrete preformed hole and construction method mainly uses the magnetic attraction of the magnetic attraction body and then the magnetic attraction particle in the elastic tube body will be adsorbed on the outer wall of the mold carrier, which can separate the concrete and the mold carrier when placing the concrete. The elastic tube body with the magnetic attraction particle will be pulled out after initial set of concrete and then the cavity of a ring mold carrier is found around the mold carrier, thus the mold carrier is easy to take out. The mold for concrete preformed hole and construction method is simple in production, convenient and rapid to install and disassemble and low in cost, and the mold can be reused.