5results about How to "Improve bonding strength" patented technology

The invention discloses an anti-settlement subgrade layered filling structure and a construction method, the anti-settlement subgrade layered filling structure comprises soft rock filler layers, a silty sand layer is filled every other soft rock filler layer with a fixed thickness, and a composite geomembrane is laid on the silty sand layer; the composite geomembrane sequentially comprises a curing layer and a drainage layer from bottom to top, the curing layer comprises a plurality of reinforcing units distributed in an array mode, each reinforcing unit comprises an upper layer and a lower layer which are filled with urease and cementing liquid respectively, the urease and the cementing liquid are sealed through the geomembrane, a trigger device is arranged in the upper layer, and the drainage layer is arranged in the lower layer. When the roadbed is settled, the trigger device moves downwards along with the roadbed to solidify the settled part; the drainage layer comprises a capillary drainage structure and is used for transversely guiding water out to the side slope. All the structural layers are matched with one another, outside water is prevented from entering a soft rock filling layer, meanwhile, the drainage capacity of the soft rock roadbed is greatly improved, the disintegration and softening effects of rainwater on soft rock are reduced, the service life of the soft rock roadbed is prolonged, the long-term stability of the roadbed is improved, and applicability is high.

The utility model discloses a photoelectric type rotating speed measuring device, which relates to the technical field of rotating speed measurement, and comprises a sensor and a placing part, the sensor is arranged in the placing part, the back surface of the placing part is hinged with an attaching part, a plurality of rubber rods are arranged between the hinged positions of the placing part and the attaching part, and the rubber rods are arranged in the placing part. The at least two rubber rods are located on the two sides of the hinged position of the containing part and the attaching part and are buffered by the rubber rods when the containing part and the attaching part are oppositely hinged. When the photoelectric rotating speed measuring device is installed, the magnetic linkage can be used for increasing the connection strength, the rubber mat can be adhered to a non-magnetic component, and the rubber ring can realize sealing, exhaust air at the adhesion position and increase the adhesion strength, so that the effect of no falling off during high-speed rotation is realized; and the shell can be buffered by the rubber rod when subjected to accelerated motion or decelerated motion, so that collision is relieved, the service life of the hinge can be prolonged, and the sensor can be quickly taken down from the shell.

The utility model is suitable for the technical field of buildings, and provides a shear wall structure with good stability, which comprises a mounting seat, a connecting piece inserted into the mounting seat and wallboards inserted into the connecting piece, and the wallboards are symmetrically distributed on the mounting seat; the reinforcing plate is connected with the connecting piece in an inserted mode; a concrete filling groove is formed among the connecting piece, the wall plate and the reinforcing plate; the first reinforcing rod is connected with the connecting piece in an inserted mode, the first reinforcing rod is connected with the wall plate in an inserted mode, and the first reinforcing rod is connected with the reinforcing plate in an inserted mode; the wallboards, the connecting pieces and the reinforcing plates are effectively connected into a whole through the first reinforcing rods, the integrity is improved, the overall strength is improved, the stability of the shear wall is greatly improved, the object area in contact with concrete is increased through the reinforcing plates, the bonding strength of the concrete is improved, and the service life of the shear wall is prolonged. And therefore, the stability between the concrete wallboard and the connecting piece is improved, and the stability of the shear wall is further improved.

The utility model relates to road construction technical field especially a kind of automatic paving equipment of colour antiskid pavement, including rack, further include: air compressor, the air compressor is set on the rack, for output high-pressure air;Connecting pipe, the connecting pipe one end is connected with the air compressor;Shunt pipe, the shunt pipe is connected with the other end of the connecting pipe, for shunting high-pressure air;Multiple conveying pipes, each conveying pipe one end is connected with the shunt pipe;Multiple spray guns, each spray gun is connected with the other end of a conveying pipe, and the end of the spray gun is fixedly installed with spray head;Multiple tanks, all are fixedly installed on the rack, the tank is used to accommodate aggregate particle, each tank is all installed with connecting cover;Low pressure is generated by high-pressure air through connecting cover, so that the aggregate particle in tank is sucked into air flow, forms the mixture of aggregate particle and high-pressure air.

The invention discloses a high-strength and high-plasticity negative enthalpy double-phase titanium alloy material and a preparation method thereof. The negative enthalpy double-phase titanium alloy material is Ti Al Mn < c > Si < d > Fe < e > Co < f > Ni < g >, wherein a, b, c, d, e, f and g respectively correspond to the mass percent of each element, a is equal to 80-95 wt%, b is equal to 3.5-8 wt%, c is equal to 0-3 wt%, d is equal to 0-2 wt%, e is equal to 0-2 wt%, f is equal to 0-2 wt%, g is equal to 0-2 wt%, and the mass percent of Mn is not equal to 0 wt%; the series of negative enthalpy double-phase titanium alloy materials structurally comprise a body-centered cubic structure and a close-packed hexagonal structure, and the microscopic structure and the mechanical property of the alloy can be regulated and controlled by adjusting the element proportion; the series of negative enthalpy biphase titanium alloy materials have high strength and high plasticity in mechanical properties, and are widely applied to the fields of aerospace, ocean engineering, biomedical treatment and the like.