3results about How to "Uniform damage" patented technology

The invention provides a preparation method of high oil-filled liquid regenerated rubber, and belongs to the field of regenerated rubber manufacturing. The method comprises the following steps: mixing and preheating waste rubber powder and a part of softener; feeding the mixed and preheated raw materials into a double-screw or multi-screw extruder for heating and primary decrosslinking; feeding the raw materials subjected to primary de-crosslinking into a parallel co-rotating twin-screw extruder, adding the rest softening agent for multiple times through a plurality of feeding holes in a machine barrel, and extruding to obtain the high oil-filled liquid regenerated rubber. Compared with traditional regenerated rubber, the processing performance is better, the surface of a product is smoother, the production process is low-carbon and environment-friendly, and the additional value of resource utilization of waste rubber is greatly improved.

The application discloses a stoma device and a bipolar stoma system. The stoma device comprises a puncture assembly, a first electrode, a second electrode and a sheath assembly. The puncture assembly comprises a mandrel and a puncture part arranged at the distal end of the mandrel. The first electrode is arranged around the mandrel and at the proximal end of the puncture part. The sheath assembly is arranged around the puncture assembly, and the second electrode is arranged at the distal end of the sheath assembly. The first electrode can move axially along the mandrel relative to the second electrode. The stoma device provided by the application can make the damage on both sides of the tissue relatively uniform, is less likely to heal and can avoid stoma failure. Meanwhile, the stoma device can avoid the heat damage caused by the negative plate in the monopolar stoma system.

The utility model discloses a blasting demolition device for quickly replacing a highway bridge expansion device, which comprises two rows of energy-gathering follow-up devices distributed on a replacement interface at equal intervals. The energy-gathering follow-up device comprises a plurality of energy-gathering follow-up units, each energy-gathering follow-up unit comprises a cylindrical shell, a first shaped charge liner, a connecting body, a second shaped charge liner and fuses are sequentially installed in each cylindrical shell from bottom to top, all the fuses are connected through a detonating network, a front-stage charge is installed in each first shaped charge liner, and a rear-stage charge is installed in each second shaped charge liner. A rear-stage charge is installed in the second shaped charge cover, and a safety protection device is arranged outside the energy-gathering follow-up device. According to the blasting demolition device for quickly replacing the highway bridge expansion device, drilling is not needed, the construction time is saved, and the integrity of structures such as a main beam and a back wall can be effectively protected.