34results about How to "Increased tensile and shear capacity" patented technology

Disclosed is a hollow box for concrete structure, which comprises an upper box board (1) and peripheral formworks (2), characterized in that the peripheral formworks (2) are partly or completely deformable formworks (3) through compressing deformation or / and stretch deformation. The invention can be applied to various cast-in-situ reinforced-bar concrete or prestressed reinforced-bar concrete hollow building roofings, house roofings, walls, foundation bedplates and hollow bridges, especially for hollow flat slabs.

The invention relates to an aluminum formwork structure. The aluminum formwork structure comprises a formwork face, a first side plate, a second side plate, a first reinforcing strip, a second reinforcing strip, a third reinforcing strip, a first fixing clamp, a second fixing clamp and fixing channel steel. First reinforcing angles are arranged at the two ends of the first side plate; second reinforcing angles are arranged at the two ends of the second side plate; the first reinforcing strip, the second reinforcing strip and the third reinforcing strip are all arranged on the formwork face; a first mounting groove is formed between the first reinforcing strip and the second reinforcing strip; a second mounting groove is formed between the second reinforcing strip and the third reinforcing strip; the first fixing clamp is in sliding connection with the first reinforcing strip; the second fixing clamp is fixedly connected with the third reinforcing strip; the first side plate, the first reinforcing angles, the first reinforcing strip and the formwork face form a first reinforcing frame; and the second side plate, the second reinforcing angles, the third reinforcing strip and the formwork face form a second reinforcing frame. The aluminum formwork structure can enhance the strength of an aluminum formwork.

The invention relates to a production process of a carton, which includes a film covering process, and the film covering process includes the following steps: A1. Prepare materials, prepare corrugated cardboard, thermal insulation film and isolation film; A2. Cover film, cover the surface of the corrugated cardboard with the thermal insulation film ; A3. Punching holes, evenly opening out glue grooves and glue injection holes on the composite corrugated cardboard and insulation film; A4. and overflow into the glue tank; A5. Secondary lamination, paste and fix the surface of the isolation film and the insulation film away from the second cardboard, and the surface of the isolation film attached to the insulation film is bonded with the fixed glue in the glue tank fixed. In step A5 of this process, the isolation film and the heat preservation film are bonded and fixed by the fixed glue in the glue tank, thereby avoiding the recoating of glue on the surface of the isolation film close to the heat preservation film. The steps of the film coating process are simple and the cycle is short.

The invention discloses an antenna structure with omnidirectional shielding, which includes a circuit board for the antenna, and the circuit board includes an insulating layer, circuit layers arranged on both sides of the insulating layer, and covering films respectively arranged on the surface of each circuit layer , also includes a shielding film, the shielding film is divided into an upper shielding film and a lower shielding film, the upper shielding film is attached to the surface of the covering film on one side, and the lower shielding film is attached to the surface of the covering film on the other side; wherein, the The shielding film comprises a protective layer, an insulating layer, a metal shielding layer and a conductive layer, the insulating layer is arranged on the surface of the protective layer, the metal shielding layer is arranged on the surface of the insulating layer, the conductive layer is arranged on the surface of the metal shielding layer, the The insulating layer is made of vinyl, and the metal shielding layer includes a first metal shielding layer formed by sputtering and a second metal shielding layer formed by electroplating. The omnidirectional shielding antenna structure provided by the invention has good electromagnetic shielding performance and stable structure.

The invention provides a device and a method for carrying out thermocompression welding on enameled wires of pendulum components. The device comprises a base and a sliding shaft, wherein the base is cylindrical, a through stepped hole is formed in the central position of the base; the aperture of a big hole at the upper part of the stepped hole is a mounting hole for the sliding shaft; a ring-shaped boss is processed on the upper surface of the base, at the outer side of the stepped hole; a ring-shaped shallow slot is processed on the outer side of the ring-shaped boss; two arc-shaped non-closed surrounding structures symmetrically distributed are processed on the outer side of the ring-shaped shallow slot, and are separated by two shallow slots with different shapes. With the special design of the device, the supporting and positioning problems of a central pendulum of a pendulum plate and a moving coil of a torquer are solved, so that the reliable positioning on the pendulum plate is realized, the stability of welding is good, and the rate of finished products and the work efficiency are also greatly improved. For the welding method, a special welding technology is adopted, the welding quality is good, the welding parameters are stable and controllable, the consistency is good, the time for welding one pendulum component by adopting lead-tin welding is about 10 minutes, while the time for welding one pendulum by adopting the method is only about 4 minutes, the production efficiency is improved by 150%, and the product pass rate also reaches above 99.5%.