6 results about "Shear bond" patented technology

Provided is a steel pipe joint device. The steel pipe joint device disclosed herein comprises: a first joint pipe coupled to one end of a steel pipe; a second joint pipe inserted into and coupled to the first joint pipe; a shear key for connecting the first joint pipe and the second joint pipe; a first fixing part for fixing the shear key to the first joint pipe; and a second fixing part for fixing the shear key to the second joint pipe.

Provided is a pressure-sensitive adhesive sheet which has excellent impact resistance, is less apt to leave an adhesive residue, and brings about excellent reworkability.　A pressure-sensitive adhesive sheet 1 includes a pressure-sensitive adhesive layer 2 which is a rubber-based pressure-sensitive adhesive layer. When the pressure-sensitive adhesive surface (adhesive surface (X)) of the pressure-sensitive adhesive layer 2 is applied to a stainless-steel plate, and this pressure-sensitive adhesive layer 2 is allowed to stand for 30 minutes in an environment of 23°C and 50% RH and then examined for 180° peeling adhesive force at a pulling speed of 300 mm / min, the peeling adhesive force is 5.5 N / cm or greater. When the pressure-sensitive adhesive surface (X) of the pressure-sensitive adhesive layer 2 is applied to a stainless-steel plate, and this pressure-sensitive adhesive layer 2 is allowed to stand for 24 hours in an environment of 23°C and 50% RH and then examined for dynamic shear bond force under the conditions of a pulling speed of 10 mm / min and a peel angle of 0°, the dynamic shear bond force is 0.35 MPa or greater. When the pressure-sensitive adhesive surface (X) of the pressure-sensitive adhesive layer 2 is applied to a stainless-steel plate, and this pressure-sensitive adhesive layer 2 is allowed to stand for 30 minutes in an environment of 23°C and 50% RH and then examined for 180° peeling adhesive force at a pulling speed of 300 mm / min after supplying 0.5 mL of ethanol to the adhesion interface, then the adhesive force is 2.0 N / cm or less.

The utility model discloses a dental after tooth bonding's shearing adhesive strength testing arrangement belongs to involve material testing technical field, including support board, the support board is fixedly connected with mounting panel, the outside fixed connection of electric push rod has electric push rod, the piston rod end fixed connection of electric push rod has vertical board, the outside mounting of vertical board has thrust sensor, in the shearing force test process, still can rotate through the first twist seat that torque test motor drives to carry out, and the first twist seat will drive the tooth that contacts the contact board to rotate under the condition of rotating, and all carry out slight rotation deviation in each rotation process, simulate the slight deviation phenomenon that will appear in human body occlusion process, further increase the diversity of strength test, increase data result to make the test result more in line with the use environment in human body use process.

A prosthesis including a UHMWPE core and a coating, wherein the core is a cup-shaped core having a concave first side and a convex second side, wherein the UHMWPE has a weight average molecular weight that is from 2×106 to 3×106 grams per mole. The core has a tensile strength that is from 35 to 50 MPa. The coating layer coats the second side of the core. The coating includes titanium powder having a D50 particle size of from 200 to 250 microns. The coating has a mean thickness that is from 200 to 500 microns. The prosthesis is an acetabular cup prosthesis. When tested for abrasion resistance, the coating loses less than 65 milligrams when abraded for 100 cycles. The coating has a static shear bond strength that is from 15 to 25 MPa and a static tensile bond strength that is from 14 to 25 MPa.

A prosthesis including a UHMWPE core and a coating, wherein the core is a cup-shaped core having a concave first side and a convex second side, wherein the UHMWPE has a weight average molecular weight that is from 2x106 to 3x106 grams per mole. The core has a tensile strength that is from 35 to 50 MPa. The coating layer coats the second side of the core. The coating includes titanium powder having a D50 particle size of from 200 to 250 microns. The coating has a mean thickness that is from 200 to 500 microns. The prosthesis is an acetabular cup prosthesis. When tested for abrasion resistance, the coating loses less than 65 milligrams when abraded for 100 cycles. The coating has a static shear bond strength that is from 15 to 25 MPa and a static tensile bond strength that is from 14 to 25 MPa.

The utility model provides a composite assembly type bridge expansion joint device, which relates to the technical field of bridge expansion joint devices and comprises an upper plate and a lower plate, the upper plate is arranged at the top of the lower plate, a shear key is arranged between the upper plate and the lower plate, and the upper plate, the lower plate and the shear key form assembly type section steel. The opposite faces of the upper plate and the lower plate are each provided with a cavity, a special-shaped anchor bolt is inserted into one side of the upper plate and one side of the lower plate in a penetrating mode, the cavity of the upper plate and the cavity of the lower plate are combined to form a circular cavity, and water stop belt side edge lug belts are arranged in the two cavities. When the assembly type profile steel is used, the polished rod end of the special-shaped anchor bolt and the embedded steel bar are welded together, then the pressing filler is poured, and then the lower plate and the upper plate sequentially penetrate through the special-shaped anchor bolt, so that when the profile steel needs to be replaced, the lower plate and the upper plate are fixed through the water stop belt side edge lug belts. And the damaged place can be replaced.