3results about How to "Enhance binding strength" patented technology

The application discloses a silicate cement admixture and a preparation method thereof, and belongs to the technical field of recycled concrete. The silicate cement admixture is prepared by using self-synthesized modified coal gangue nanosheets, copper-calcium nanoneedle composite modified scales and a modified binder as part of fillers. The modified binder can significantly increase the interfacial bonding force of the silicate cement admixture, the cement matrix and the recycled aggregate. The modified coal gangue nanosheets and the copper-calcium nanoneedle composite modified scales, which are both reinforcing phases, can give the silicate cement admixture sufficient mechanical strength. The two kinds of materials are both in a sheet structure, and the stress can be dispersed by mutual sliding of the two kinds of materials, so that stress concentration points are avoided at the interface. The copper-calcium nanoneedle composite modified scales can increase the contact area with other materials through a mechanical interlocking effect, and the existence of the nanoneedle structure allows a gap between the copper-calcium nanoneedle composite modified scales and other materials, so that the porosity and the water permeability are increased.

The present disclosure provides a hanging device, comprising a connecting body, a hanging reinforcing mechanism and a hanging piece. The connecting body comprises a joint part for vertical insertion of a building body, and is detachably arranged on the building body. The hanging reinforcing mechanism comprises at least one pair of clamping pieces, which are oppositely arranged on the connecting body in a transverse direction and are slidably arranged. The hanging piece is connected with the at least one pair of clamping pieces through a transmission mechanism and is vertically movably arranged. Wherein, the hanging piece is driven by the transmission mechanism to form a driving component force of the at least one pair of clamping pieces in the transverse direction to approach or deviate from each other, so that the at least one pair of clamping pieces are tightly arranged on the building body. The transmission mechanism drives the at least one pair of clamping pieces to clamp the building body in the horizontal direction by the gravity acting on the hanging piece, so as to improve the combination degree between the hanging device and the building body, avoid the situation that the gravity acting on the hanging piece only causes the hanging device to separate from the building body, and further improve the safety factor of the hanging device.

The utility model relates to a kind of grounding structure and electric connector.The grounding structure includes ground sheet, with first side and second side, first hole is provided on the ground sheet, the first hole is through the second side of the ground sheet;And conductive column, its first end is connected in first hole, second end is used to be connected with ground object.The electric connector includes first lead frame, with first side and second side;First terminal assembly, with signal terminal and ground terminal, the signal terminal and ground terminal are all set in the second side of the first lead frame;And first grounding structure, the first grounding structure is located in the first side of the first lead frame;The first lead frame is provided with the second hole opposite with the first hole of the first grounding structure, the second hole is communicated with the ground terminal;The conductive column is connected in the first hole and second hole, the conductive column is connected with the ground terminal as ground object.