39results about How to "Good bonding surface" patented technology

A touch-fastening anti-skidding material includes a knitted foundation layer and a plurality of synthetic yarns that is secured together by being collectively knitted in the foundation layer. The foundation layer is formed by knitting of pliable base yarns and synthetic yarns. The synthetic yarns are knitted in U-shaped loops and the base yarns are knitted between adjacent strands of the knitted synthetic yarns to make a large area cloth. The cloth may be in a planar form without hollow opening sections or it includes open sections to facilitate air permeability. The loops of the synthetic yarns have legs extending beyond the foundation layer by a predetermined length and the synthetic yarns show rigidity strength, whereby a flexible, resilient, light-weighted, and low-cost touch-fastening anti-skidding material is formed.

A touch-fastening anti-skidding material includes a knitted foundation layer and a plurality of synthetic yarns that is secured together by being collectively knitted in the foundation layer. The foundation layer is formed by knitting of pliable base yarns and synthetic yarns. The synthetic yarns are knitted in U-shaped loops and the base yarns are knitted between adjacent strands of the knitted synthetic yarns to make a large area cloth. The cloth may be in a planar form without hollow opening sections or it includes open sections to facilitate air permeability. The loops of the synthetic yarns have legs extending beyond the foundation layer by a predetermined length and the synthetic yarns show rigidity strength, whereby a flexible, resilient, light-weighted, and low-cost touch-fastening anti-skidding material is formed.

A touch-fastening anti-skidding material includes a knitted foundation layer and a plurality of synthetic yarns that is secured together by being collectively knitted in the foundation layer. The foundation layer is formed by knitting of pliable base yarns and synthetic yarns. The synthetic yarns are knitted in U-shaped loops and the base yarns are knitted between adjacent strands of the knitted synthetic yarns to make a large area cloth. The cloth may be in a planar form without hollow opening sections or it includes open sections to facilitate air permeability. The loops of the synthetic yarns have legs extending beyond the foundation layer by a predetermined length and the synthetic yarns show rigidity strength, whereby a flexible, resilient, light-weighted, and low-cost touch-fastening anti-skidding material is formed.

The invention discloses a method for manufacturing a flexible oil pumping rope. The method comprises the following steps of: twisting a plurality of steel wire strands into a sealed steel rope by adopting twisting equipment; weaving a silk screen for binding the steel rope on the outer surface of the sealed steel rope; and coating an outer protective sealing layer on the outer surface of the silkscreen, and closing the silk screen and the sealed steel rope in the outer protective sealing layer. Single steel wires or steel wire strands of the oil pumping rope manufactured by adopting the method form a sealed whole, and leakage of the whole oil pumping rope is not caused even if the local oil pumping rope is damaged, so the use of the oil pumping rope is not affected, and the service life of the oil pumping rope is prolonged.

The invention discloses a manufacturing method of the reactor loop lead wires in the technical field of the reactor, including the following steps: first performing the high temperature anneal process on the strip sheet copper row; then fetching the aluminum foil with the same shape with the copper row, removing the surface oxide layer of the copper row and the aluminum foil; finally performing the cold crimping on the press machine with the copper row and the aluminum foil. The upper die is arranged with a plurality of strip ridge heave arranged in parallel, while the lower die is the rigid flat. The copper row and the aluminum foil are arranged between the upper die and the lower die, wherein the aluminum foil is up and the copper row is down, through the matched molds, the pressure maintaining, the demould, the copper row and the aluminum foil pressed together are fetched, namely the reactor loop lead wires. The method can connect the two materials reliably, with reliable connection and large tensile strength, no electrochemistry rot, no welding, high cleanness, low cost. The obtained product can be used for manufacturing the reactor.

The invention provides a secondary injection molding process of megawatt level wind turbine blades. When a white spot region is found after the primary resin injection is completed, a circle of spiral pipe is fast paved on the white spot region, a plurality of glue injection nozzles are uniformly distributed on the spiral pipe, and a layer of outer-layer vacuum bag is covered above the white spotregion through sealing joint strips on the periphery of the spiral pipe. Small holes are dug in the middle of the outer-layer vacuum bag above the center of the white spot region, the glue injection pipe is connected with the spiral pipe while gluing a vacuum air suction pipe, a communication pipe with a middle valve is arranged between the vacuum air suction pipe and the glue injection pipe, theother end of the glue injection pipe is connected with a glue injection barrel through a glue injection valve, the outer end of the vacuum air suction pipe is connected with a vacuum pump through a vacuum valve, vacuum pumping and glue injection are carried out after the system pavement is completed, a injected region is heated, and the manufacture is completed after the fiber structure is cured.The secondary injection resin and the primary injection resin have good combining surfaces, the operation is simple, the fiber intensity in each direction is ensured, and the blade quality and the production efficiency are improved.

The invention discloses a high rock-fill dam membrane anti-seepage body on a deep coverage layer and a construction method of the high rock-fill dam membrane anti-seepage body. The membrane anti-seepage body is composed of a concrete protection layer, a geomembrane anti-seepage layer, a flexibility cushion layer and a transition layer. The concrete protection layer is a cast-in-place fiber concrete layer for a reserved cross joint and a vertical joint and located on a surface layer to protect a geomembrane. The geomembrane anti-seepage layer is a two-cloth and one-membrane composite geomembrane and is located in the middle to play a role of preventing seepage. The flexibility cushion layer is a polyurethane pervious concrete layer and located at the bottom of the anti-seepage body to support the geomembrane and to transmit and disperse water loads. The rough granule transition layer is arranged between the flexibility cushion layer and a rock-fill dam body. The construction method comprises the technical steps of filling and building the transition layer, pouring the flexibility cushion layer, paving the composite geomembrane, pouring the concrete protection layer and the like. The membrane anti-seepage body can keep stable on a high rock-fill dam slope, the ability of adapting to deformation of a coverage layer dam foundation and the dam body is high, the structural form is simple, construction is fast, and the anti-seepage problem of the high rock-fill dam on the deep coverage layer can be effectively solved.