34results about How to "Reduce the possibility of instability" patented technology

The invention belongs to the technical field of pesticides, and in particular relates to a low-temperature anti-degradation manufacturing method for a small-particle-diameter suspending agent. The present invention includes step 1: adding the original drug to be ground into a jet mill, and obtaining the original drug powder after the grinding is completed; step 2: transferring the original drug powder obtained in step 1 to a pipeline crushing pump, adding auxiliary agent and water, start the pipeline crushing pump for crushing, and obtain the original drug mixture after the crushing is completed; Step 3: transfer the original drug mixture in step 2 to a sand mill for grinding, and sieve after grinding to obtain a suspending agent. The present invention is crushed by a jet mill first, then pulverized by a pipeline pump for the second time, and finally sanded, which effectively reduces the time and frequency of sanding, reduces the temperature of the material after sanding, and reduces the risk of the original drug due to temperature rise. The possibility of degradation and product instability caused by it can also effectively prevent the blockage of the sand mill caused by the original drug being too coarse, and reduce the load of the sand mill.

The invention discloses an L-shaped partially-prefabricated composite beam, and a construction method and application thereof, and belongs to the technical field of buildings. The composite beam givesfull play to the performance of steel and concrete materials. Concrete is packed in profile steel, the constraint effect on the concrete is enhanced due to the existence of the profile steel, and thepossibility of local buckling or overall instability of the profile steel is reduced due to the existence of the concrete, so that the bearing capacity of the composite beam is improved, and meanwhile, the purpose of reducing the section size of the composite beam is achieved. The web plate of the composite beam is a corrugated plate with higher shear strength, and the constraint effect on concrete is greatly improved due to higher lateral rigidity of the web plate. Aiming at the bonding among second precast concrete, cast-in-place concrete and H-shaped steel, the composite beam adopts a modeof punching a shear key on the web plate of the H-shaped steel, so that the shear key is partially arranged in the second precast concrete, and the shear key is partially arranged in the cast-in-place concrete, thereby ensuring co-working of the concrete and the concrete and co-working of the steel and the concrete.

The invention relates to a double-layer steel plate composite shear wall with corrugated web I-shaped steel components transversely arranged in a staggered mode, and belongs to the field of structuralengineering. The combined shear wall is composed of a double-layer steel plate shear wall body formed by welding a plurality of first steel plate shear wall units and second steel plate shear wall units in a crossed mode and integrally-poured concrete. The corrugated web I-shaped steel components in the adjacent steel plate shear wall units are arranged in the length direction of outer side steelplates in a staggered mode, so that the buckling mode of a whole wall body is changed, then overall buckling of the wall body is changed into local buckling of a part of the wall body, and the bearing capacity is effectively improved; corrugated webs can be made high and thin, so that the elastic buckling loads of the plates among the cells are similar, and the economical efficiency of the steelplate shear wall is effectively improved; the corrugated webs are not unstable when being pressed, so that the connection performance of the corrugated web I-shaped steel components and the outer sidesteel plates when the wall body is pressed is effectively ensured; and the steel plate shear wall units are transversely arranged, so that the shear wall units are sequentially welded from bottom totop in the installation process, and the construction difficulty is reduced.