34results about How to "Destruction strength" patented technology

The invention discloses a laser aided rock-breaking fixed gear drill bit. The laser aided rock-cracking fixed gear drill bit mainly comprises a drill bit body, a light path passage, a laser head, a mud passage, a cutting gear and a knife wing, wherein the drill bit body is also provided with the light path passage; the laser head is arranged on the end part of the light path passage. The drill bit has three independent rock-breaking ways, i.e. a hydraulic rock-breaking way, a mechanical rock-breaking way and a laser rock-breaking way, on the basis of the traditional mechanical rock-breaking way and hydraulic rock-breaking way, the laser aided rock-breaking way is added, and the light path passage independent of the mud passage is arranged. A rock layer is irradiated by laser emitted by the laser head arranged in the laser passage, and rocks are crushed, smelted or vaporized before being cut by the drill bit, so that the aims that the cutting difficulty of the drill bit is reduced, the drill bit is protected, the service life of the drill bit is prolonged, and the mechanical drilling speed of a ground layer which is difficultly drilled is increased are fulfilled.

The invention discloses a steel pipe discharging auxiliary device and a steel pipe laser drilling cutting machine. The steel pipe discharging auxiliary device comprise a bottom plate and a vertical plate fixedly connected with the bottom plate, the vertical plate is rotatably connected with two clamping power devices through two rotating shafts, the two rotating shafts penetrate through the vertical plate, clamping arms are fixedly connected to the other side of the vertical plate, and the clamping power devices are connected with reset mechanisms keeping the clamping arms swing trend towardsthe middle of the vertical plate. The steel pipe laser drilling cutting machine comprises a machine body, a machine head, a supporting wheel and a protective cover, a steel pipe blanking assisting device is arranged on the machine body on the rear portion of the protective cover, and a sliding way on the lower portion of the bottom plate is connected with a sliding rail of the machine body in a sliding mode under the action of external force. A material clamping and then dragging mode is selected, and the problem that due to the space problem of an industrial robot, a machined finished pipe product is inconvenient to take is solved.

The invention discloses a hydrocracking catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: performing water vapour spraying and modifying treatment on graphene to obtain modified graphene; uniformly mixing aluminium hydroxide dry glue powder with the modified graphene to obtain a carrier; providing an aqueous solution of a precursor of a metal active ingredient as a soaking solution, wherein the precursor of the metal active ingredient is selected from a water-soluble compound comprising VIB-family and / or VIII-family metal elements; the metal active ingredient is selected from a metal oxide; the carrier is soaked into the soaking solution, is subjected to microwave drying, is uniformly mixed with a molecular sieve, and isground, formed, dried and roasted to obtain the hydrocracking catalyst. The preparation method is simple, is low in cost, has the advantages of being good in activity, great in pore volume, great inspecific surface area and great in strength, is suitable for treating worse raw oil with a high dry point (higher than 560 DEG C), and has good activity stability.

An electrode holder for use in a furnace for melting a batch material to form molten glass is disclosed comprising a refractory coated nose member presented to and in contact with a molten glass material contained within the furnace. The refractory coating is preferably a flame- or plasma-sprayed ceramic such as alumina or zirconia. That protects the nose member from corrosion from the hot molten glass.

The invention discloses a hydrofining catalyst. The hydrofining catalyst comprises a metal active component, a carrier loaded with the metal active component and auxiliaries, wherein the carrier is mainly formed by mixing, extrusion-moulding, drying and roasting modified graphene and aluminium oxide; the metal active ingredient comprises metal oxides which comprise oxides of VIB-family and / or VIII-family metal elements; the auxiliaries comprise oxides of magnesium and / or barium; the average pore size of the catalyst is 30-80 nm, the specific surface area is 100-300 m<2> / g, and crushing strength is 300 N.cm<-1> or more. The invention further provides a preparation method for the catalyst and application thereof. Compared with a conventional hydrofining catalyst, the catalyst provided by theinvention has the advantages of high strength, intensive pore distribution, great pore volume and great specific surface area, is good in activity and stability, and is suitable for treating bad oilwith high asphalt content.

The invention relates to a process for improving the crushing resistance of rolled slices, which comprises the following steps of: (1) impregnating and defibring externally-added fibers in alkali liquor, and performing extrusion and oven-drying to obtain defibred dry fibers; (2) crushing and uniformly mixing 10 to 20 weight percent of defibred dry fiber, 70 to 80 weight percent of tobacco material and 2 to 10 weight percent of methylcellulose to form mixed fibers; (3) uniformly mixing the defibred dry fibers and slice glue, and then mixing the mixture, a phosphoric acid, glycerol and water toobtain slice glue mixed fibers; (4) mixing the mixed fibers and the slice glue mixed fibers according to the weight ratio of 1:1-2, and storing the mixture in a storage tank; and (5) rolling and forming the raw material, drying and cooling the formed raw material, and slitting the raw material to obtain slice shreds. Through the process, the toughness of tobacco slices is improved; and the prepared tobacco slices have strong mechanical strength and high crushing resistance.

The invention discloses a buffer plate and a manufacturing method thereof, wherein the buffer plate comprises the following compositions in parts by weight: 90 to 110 parts of natural rubber, 3 to 8 parts of active agent, 0.5 to 3 parts of peptizer, 1.2 to 2.7 parts of vulcanizing agent, 0.8 to 2 parts of accelerating agent, 0 to 2 parts of polyethylene glycol, 60 to 90 parts of reinforcing filler, 5 to 10 parts of machine oil, 2 to 6 parts of flow dispersant, 1 to 5 parts of anti-aging agent, and 0 to 1 part of scorch retarder. The buffer plate of the invention has the advantages of advancedand optimized formula, reasonable structure, strong compressive resistance and tear resistance, proper hardness, and good flexibility, can effectively reduce the damages on railway vehicles, and alsoease the impact force borne by a car dumper.

The invention discloses a hydrocracking catalyst. The hydrocracking catalyst comprises a metal active ingredient, a carrier loaded with the metal active ingredients and a molecular sieve used as a cracking component, wherein the carrier is mainly formed by mixing modified graphene and aluminium hydroxide dry glue powder; the metal active ingredient comprises metal oxides which comprise oxides of VIB-family and / or VIII-family metal elements; and the specific surface area of the catalyst is 250-550 m<2> / g, and the pore volume is 0.20-0.60 ml / g. The invention further provides a preparation methodfor the catalyst and application thereof. The preparation method for the catalyst provided by the invention is simple, is low in cost, and has the advantages of good activity, great pore volume, great specific surface area and high strength, is suitable for treating worse raw oil with a high dry point (higher than 560 DEG C), has good activity stability, can further convert polycyclic aromatic hydrocarbon primarily saturated in hydrofining into hydrocarbons with smaller molecules, so that the hydrogenation tail oil yield is obviously reduced, and the light fuel oil yield is remarkably increased.

The invention discloses a hydrocracking catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: performing water vapour spraying and modifying treatment on graphene to obtain modified graphene; uniformly mixing aluminium hydroxide dry glue powder with the modified graphene to obtain a carrier; providing an aqueous solution of a precursor of a metal active ingredient as a soaking solution, wherein the precursor of the metal active ingredient is selected from a water-soluble compound comprising VIB-family and / or VIII-family metal elements; the metal active ingredient is selected from a metal oxide; the carrier is soaked into the soaking solution, is subjected to microwave drying, is uniformly mixed with a molecular sieve, and isground, formed, dried and roasted to obtain the hydrocracking catalyst. The preparation method is simple, is low in cost, has the advantages of being good in activity, great in pore volume, great inspecific surface area and great in strength, is suitable for treating worse raw oil with a high dry point (higher than 560 DEG C), and has good activity stability.

The invention provides an integrated die-cast alloy bicycle frame. The integrated die-cast alloy bicycle frame comprises a first bicycle frame pressing piece, a second bicycle frame pressing piece, a first rear beam pressing piece and a second rear beam pressing piece. The first bicycle frame pressing piece and the second bicycle frame pressing piece each comprise a front axle pressing part, a front beam pressing part, a saddle pressing part, a lower beam pressing part and a rear beam pressing part. The front axle pressing part, the front beam pressing part, the saddle pressing part and the lower beam pressing part of the first bicycle frame pressing piece and the front axle pressing part, the front beam pressing part, the saddle pressing part and the lower beam pressing part of the second bicycle frame pressing piece are press-formed correspondingly. According to the integrated die-cast alloy bicycle frame, the defects, caused by a traditional welding technique, that the strength is reduced and the attractiveness is affected by weld lines are avoided while the weight of the bicycle frame can be reduced. The invention further provides a pressing method of the integrated die-cast alloy bicycle frame. The pressing method of the integrated die-cast alloy bicycle frame comprises the steps of 3D designing, die opening, smelting, die manufacturing, gluing, pressing and the like. By the adoption of the method, the bicycle frame production process is simplified, and the bicycle frame production efficiency is improved.

The invention relates to a method for treating water seepage of a pavement structure in a plain area. The method includes: encircling an area, needing to be drilled, through a honeycomb-structure splash-proof unit; by the aid of a pile driver, subjecting the area needing to be drilled and gravel piles to hole drilling; filling drilled holes with mixed fillings by layers, and ramming the mixed fillings in every layer: coating circumferential walls of the drilled holes with asphalt layers after the mixed fillings in bottom layers of the drilled holes are rammed, continuously filling middle layers and upper layers of the drilled holes with the mixed fillings which are rammed in sequence; removing residual materials in the drilled hole area, filling seams and sealing the drilled holes with mortar or clay; paving a slurry seal layer. The method for treating the water seepage of the pavement structure has the advantages that a splash-proof function is achieved, compressive property and non-deformability of the mixed fillings in the drilled holes are improved, and water seepage treatment effect is improved.

The invention discloses a cleaning device for cauliflower vegetables for cleaning vegetables, and relates to the technical field of vegetable processing. The cauliflower vegetable cleaning device for cleaning vegetables includes a machine body. A feeding frame is inserted into the left side of the body, and the feeding frame communicates with the inner cavity of the body. A conveyor belt is installed laterally in the body, and the conveyor belt is located at Below the right side of the feeding frame, the right end of the conveyor belt is driven by a drive motor, and the drive motor is fixedly installed on the right side of the bottom of the body, and a cleaning box is arranged under the right side of the conveyor belt. The cauliflower vegetable cleaning device for cleaning vegetables uses the barb to fix the cauliflower on the conveyor belt, and the blade cuts off the root of the cauliflower. The effective cleaning of the inside of the cauliflower solves the problem that the existing cauliflower cleaning device cannot fully clean the inside of the cauliflower.

The invention discloses a hydrotreating catalyst for treating low-quality oil, which comprises a metal active component and a carrier that supports the metal active component, and the carrier is mainly formed by mixing modified graphene and alumina through extrusion and extrusion. Formed by drying and calcining, the metal active component includes metal oxides, and the metal oxides include oxides of metal elements in Group VIB and / or Group VIII; the average pore diameter of the catalyst is 30-80 nm, and the specific surface area is 100 nm. ~300m 2 / g, the crushing strength is 300N·cm ‑1 above. The invention also provides the preparation method and application of the catalyst. Compared with conventional hydrotreating catalysts, the catalyst provided by the present invention has the advantages of high strength, concentrated pore distribution, large pore volume, and large specific surface area, and has good stability to activity, and is suitable for treating inferior products with high asphaltene content. Oil.