43results about How to "Reduce facilitation" patented technology

A cutter for a drill bit used in a geological formation includes a shaped ultra hard working surface. The cutter with the shaped working surface is mounted on a drill bit to provide desired cutting characteristics. The shaped working surface provides varied cutting characteristics depending upon the shape, and the characteristics can vary depending upon the depth of the cut.

According to an embodiment of the invention, there is provided a switching power supply device including an integrated body and a plurality of external terminals. In the integrated body, a first switching element, a constant current element, and a diode are connected in series. The plurality of external terminals include a first external terminal connected to a main terminal of an element disposed on one end side of the integrated body and a second external terminal connected to a main terminal of an element disposed on another end side of the integrated body.

An apparatus for determining position of a free piston used in such as hydraulic compressor, which has no mechanical connection with crank shaft, and an apparatus for controlling reciprocating motion of the free piston are disclosed. A free piston position determining apparatus comprises a magnetic sensor disposed in a case containing a free piston, and a magnet disposed on the free piston. The magnet sensor generates pulse train when the magnet is positioned within a pre-determined distance form the magnet sensor. Stroke of the free piston is computed based on duration of the pulse, and offset of the average piston position from designed average position is computed based on interval of the pulse.

The invention discloses a manufacturing method of cold-rolled medium-high carbon structural steel. The steel is prepared from components in percentage by weight as follows: 0.30%-0.70% of C, 0.15%-0.35% of Si, 0.10%-1.20% of Mn, 0.10%-1.10% of Cr, less than or equal to 0.030% of Alt, less than or equal to 0.020% of P, less than or equal to 0.010% of S, no more than 0.3% of other added alloy elements and the balance of Fe and inevitable impurity elements. According to the manufacturing method, one-time annealing and one-time cold-rolling are adopted, a raw material steel coil can be cold-rolled directly by controlling hot rolling process parameters, the cold-rolling reduction ratio is larger than or equal to 50%, deformation can infiltrate the structural core part, lamellar carbide in a hot-rolled raw material pearlite structure is broken through cold-rolling deformation, a lot of dislocation is produced in grains, the broken carbide and defects provide a core for separation of carbide in the annealing process, the uniform structure and the tiny carbide are obtained, and technical effects of improving the production efficiency and reducing the cost are realized.

The invention relates to a high-melt-index halogen-free flame-retardant polypropylene material and a preparation method thereof. The high-melt-index halogen-free flame-retardant polypropylene materialcomprises the following components in parts by weight: 60 to 80 parts of polypropylene base material, 0.1 to 20 parts of pyrophosphoric acid piperazine, 0.1 to 20 parts of surface modified ammonium polyphosphate, 0 to 10 parts of melamine or salt thereof, 0.1 to 3 parts of coupling agent, 0.1 to 3 parts of compatilizer, 0.1 to 3 parts of antioxygen, 0.1 to 3 parts of light stabilizer, and 0.1 to1 part of white oil. The preparation method comprises the steps of weighing the raw materials in parts by weight, premixing the dried polypropylene base material and the dried white oil in a dual-motion mixer for 5 to 8 minutes, and uniformly mixing; adding the pyrophosphoric acid piperazine, the surface modified ammonium polyphosphate, the melamine or the salt thereof, the coupling agent, the campatilizer, the antioxygen and the light stabilizer according to the parts by weight, and continuously mixing for 5 to 8 minutes so as to obtain a uniform mixture; and putting in a charging hole of a double-screw extruder, mixing and extruding the materials through a screw rod, and extruding from a die head. Compared with the prior art, the halogen-free polypropylene material provided by the invention can effectively solve the problems such as high pollution of a traditional triazine carbon-forming agent system, poor compatibility of a flame retardant and a matrix, and low flame retardant efficiency.

The present invention relates to one kind of compound triptolide alcohol preparation for being injected into articular cavity to treat osteoarthritis. It includes triptolide alcohol solution of 1*10<-4> to 5*10<-2> mg/ml concentration and gel liquid mixed in the volume ratio of 1 to 1-9. It has medicine slow releasing effect, and this can prolong the action period of medicine, reduce consumption of triptolide alcohol and lower the toxic side effect of the medicine. It can inhibit the further development of osteoarthritis in early and middle phase, improve the environment inside the joint and promote the regeneration and repair of articular cartilage to reach the aim of cure osteoarthritis.

The invention discloses an argon blowing lance which includes a metal lance rod and a lance body that are connected together by a flange; the lower part of the lance body is provided with a dispersion nozzle; the lance body includes a main tube, a reinforcing tube, a plurality of bridging welding pieces, a plurality of rivet pieces and the working liner of a fire-proof material; the reinforcing tube is sheathed on the outside of the main tube; besides, a plurality of bridging welding pieces are uniformly welded between the reinforcing tube and the main tube; the rivet pieces of V shape and double V-shape are respectively and alternatively arranged in the working liner of the fire-proof material outside the reinforcing tube along the surrounding direction and the coaxial direction of the reinforcing tube; besides, the top points of the two are respectively welded with the outer surface of the reinforcing tube. The measures of the invention of sheathing the reinforcing tube and the bridging welding pieces outside the main tube of the core of the lance improve the intensity and the rigidness of the core structure of the lance; the rivet pieces of V shape and double V-shape enhance the bonding intensity between the core of the metal core of the lance and the working liner of the fire-proof casting material; the dispersion nozzle improves the blowing stirring intensity and finally achieves the goals of prolong the service life of the lance and improving the use performance of the lance.

To cut a backed ply material with an ultrasonic blade, an anvil is utilized to provide support. The backed ply material travels in a first direction, the ultrasonic blade includes a tip, and the ultrasonic blade is operable to travel along a path. This path is oriented in a transverse manner relative to the first direction. The anvil includes a rigid base for securing the anvil to a cutting assembly and a surface coinciding with the path. The surface is secured to the base. The anvil further includes a groove disposed upon the surface. This groove is in cooperative alignment with the tip.

The invention belongs to the technical field of membranes, and discloses a PCNT and PGO synergistically modified polymer hybrid proton exchange membrane and a preparation method thereof, and the preparation method comprises the following steps: (1) preparing a polydopamine modified carbon nanotube DCNT; (2) preparing graphene oxide DGO modified by polydopamine; (3) carrying out a reaction on alendronate and DCNT to obtain a phosphorylated carbon nanotube PCNT; (4) carrying out reaction on alendronate and DGO to obtain phosphorylated graphene oxide PGO; and (5) obtaining a membrane casting solution based on the sulfonated polymer solution, PCNT and PGO to form a membrane material, and further treating to obtain the PCNT and PGO synergistically modified polymer hybrid proton exchange membrane. The structure and composition of key functional components in the proton exchange membrane are improved, and the proton conductivity of the prepared proton exchange membrane is greatly improved based on the synergistic effect of the functional components PCNT and PGO.

A dental implant assembly comprises, a base member which is rotatably insertable into a jaw-bone. The base member may be defined by a collar portion, a mid-portion and an apical region. The base member in entirety may be configured with a tapered configuration right from the mid-portion to the apical region. Further, the base member is defined with a plurality of threaded profiles on an outer surface. A first thread profile is defined on the collar portion. A second thread profile, defined on the mid-portion and a third thread profile, defined on the apical region. The third thread profile is configured to cut into the jaw-bone during insertion to anchor the base member. As the third thread profile cuts in to the jaw bone, the second thread profile forms a threaded hole within the drilled hole in order to securely anchor the base member within the jaw bone.

The invention discloses yield increasing foliar fertilizer for tobacco. The foliar fertilizer is prepared from components in parts by mass as follows: 14-20 parts of urea, 4-6 parts of salicylic acid,2-6 parts of indoleacetic acid, 2-6 parts of abscisic acid, 5-9 parts of sodium bicarbonate, 2-4 parts of a trace element preparation, 3-7 parts of 2-diethylaminoethyl hexanoate, 4-8 parts of a plantamino acid extract preparation and 150-200 parts of deionized water. With the adoption of the foliar fertilizer, tobacco yield can be increased effectively, tobacco growth is promoted by plant growthhormone while tobacco quality cannot be affected, weed growth can be inhibited to a certain extent, and the foliar fertilizer is safe and pollution-free.