34results about How to "Small expansion deformation" patented technology

The invention discloses a low smoke zero halogen high-temperature (100 DEG C) and flame resistance multi-core control cable core insulation rubber comprising the following components by weight part: 100 parts of polyolefin elastomer (POE), 2-5 parts of organic peroxide curing agent, 1-4 parts of assistant sulfur agent and 1-4 parts of reinforcing agent. Preferentially, the POE is POE8450, the organic peroxide curing agent is dicumyl peroxide (DCP), the assistant sulfur agent is triallyl isocyanurate (TAIC), and the reinforcing agent is deposited white carbon black. The multi-core control cable core insulation rubber has good comprehensive performance, excellent electrical performance, good heat resistance, ageing resistance and wear resistance, high temperature resistance level and long service life.

The invention provides a flow rectifier. The flow rectifier comprises a radio frequency cover and a spraying plate. The radio frequency cover comprises an upper part and a lower part which are fixedly connected into a whole. The upper part of the radio frequency cover is a first disc body, and the lower part of the radio frequency cover is a first annular connecting part. The outer diameter of the first connecting pat is smaller than the diameter of the first body. The spraying plate comprises an upper part and a lower part which are fixedly connected into a whole. The upper part of the spraying plate is a second annular connecting part, and the lower part of the spraying plate is a second disc body. The outer diameter of the second connecting part is greater than the diameter of the second body. The outer side wall of the first connecting part and the outer side wall of the second connecting part are provided with matching clamping parts in the axial direction correspondingly, so that the radio frequency cover is fixedly connected with the spraying plate. Through the flow rectifier provided by the invention, the problem of non-ideal machining processes caused by gas leakage and deformation can be effectively solved, and the flow rectifier has good conduction characteristic.

The invention discloses a polyolefin thermoplastic elastomer cable sheathing material and a preparation method thereof. The raw materials comprise a polyolefin thermoplastic elastomer, natural rubber, zinc oxide powder, nano titanium dioxide, modified nano aluminum hydroxide, a curing agent VA-7, an accelerator BF, tetraisopropyl di(dioctylphosphate) titanate, calcium stearate, catechol, an anti-dripping agent KY-G80 and chlorinated paraffin. The material provided by the invention adopts a polyolefin thermoplastic elastomer as a main material, has excellent electrical properties, good heat resistance, good aging resistance, good wear resistance, small expansion deformation under high temperature, and is conducive to secondary vulcanization processing, low-smoke, flame-retardant environment-friendly and safe; and through the modification treatment on a flame retardant nano aluminum hydroxide, the cable sheath gains greatly improved flame retardance and has obvious flame retardant effect.

The invention discloses a multi-reinforced granular material pile, which is arranged inside soft soil, and comprises hollow cylindrical vertical reinforcement and filler filled in the vertical reinforcement, and the vertical reinforcement circumferential surface in the filler is evenly arranged along the axial direction There are horizontal reinforcements, the horizontal reinforcements are placed between the fillers, and the axial reinforcements are evenly arranged along the radial direction of the vertical reinforcements. The multi-reinforced granular material pile of the present invention is more suitable for soft soil. The present invention also provides a construction method of the above-mentioned multi-reinforced granular pile.

The invention discloses a halogen-free environmentally-friendly power cable material for wind power generation, and its preparation method. The cable material comprises the following raw materials, by weight, 90-110 parts of a polyolefin elastomer (POE) 8450 / American DuPont, 50-60 parts of PVC resin powder, 40-60 parts of wollastonite powder, 60-80 parts of nanometer attapulgite, 50-80 parts of ethylene-propylene-diene terpolymer rubber, 40-50 parts of nitrile butadiene rubber, 20-30 parts of nanometer pottery clay, 30-40 parts of aluminum hydroxide, 1-4 parts of precipitated white carbon black, 60-80 parts of light calcium carbonate, 3-5 parts of insoluble sulfur, 1-4 parts of triallyl isocyanurate, 3-5 parts of an antiager TPPD, 4-6 parts of dicumyl peroxide (DCP), 3-8 parts of dibasic lead phosphite, 5-7 parts of an antioxidant 1010, 2-5 parts of monoglycerin stearate and 50-70 parts of antimony trioxide. The cable material has the advantages of simple preparation method, excellent electrical property, good heat, ageing and wear resistances, small swelling deformation at a high temperature, secondary vulcanizing processing benefiting, low smoke and fire resistance, and environmental protection and safety.

The invention provides a stator assembly and a motor with the stator assembly. The stator assembly includes a stator bracket and a stator core installed on the stator bracket, and the stator bracket includes a support shroud, formed between the support shroud of the stator bracket and the radial side surface of the stator core. There is a first axial airflow passage, and the stator assembly further includes an airflow conveying unit for supplying the first cold airflow to the first axial airflow passage, so that the cold airflow flows in the axial direction. According to the embodiment of the present invention, during the operation of the motor, a cold airflow can be introduced to the other side of the stator opposite to the air gap, so that both radial sides of the stator can be cooled at the same time, reducing the expansion and deformation of the stator core and preventing The air gap is narrowed, and at the same time, it prevents the stator from high-temperature baking of the magnetic poles, protects the magnetic poles, and prolongs the service life of the motor.

The invention provides a vacuum modified weedtree composite wooden door and a processing method thereof. The processing method comprises the following steps of arranging two rubber thin films between an upper thin film air cushion and a lower thin film air cushion of a double-surface thin film air cushion press, and putting a wooden door substrate between the two rubber thin films to form a workpiece to be pressed; lifting a lower pressing plate to attach to the upper surface of the workpiece to be pressed to the upper thin film air cushion, and heating the workpiece to be pressed to 95-110 DEG C for 20-40 seconds; compressing air in an upper air cushion and a lower air cushion of the double-surface thin film air cushion press under the air pumping pressure being 0.5-0.8Mpa for 300-500 seconds; meanwhile, vacuumizing a sealed cavity formed between an upper pressing plate and the lower pressing plate; releasing the pressure to obtain the vacuum modified weedtree composite wooden door. The steps of the processing method of the vacuum modified weedtree composite wooden door are scientific, reasonable and environment-friendly and can be used for processing a wooden door with a specially-shaped surface.

An objective of the present invention is to provide a tile panel whereby a tile is not prone to peeling from a substrate even in a poor environment such as an atmosphere including an acidic gas. A tile panel is configured from: a cement board (2) whereupon is positioned a plurality of tiles (1, 1...); interim locking jigs (3) which are positioned in joints of the vertical tiles (1, 1...), and which further comprise lower edge locking portions (3a) which lock with the lower edges of the tiles (1, 1...) which are immediately thereabove, upper edge locking portions (3b) which lock with the upper edges of the tile (1, 1 ...) which are immediately therebelow, and attachment portions (3c) therebetween; rivet members (4) which anchor the attachment portions (3c) to the cement board (2); and vertical locking jigs (5), further comprising vertical edge locking portions (5a) which lock either the upper edges or the lower edges of either the uppermost part or the lowermost part of the plurality of tiles (1, 1...), covered locking portions (5b) which lock in a covered manner either upper part small cut ends (2a) or lower part small cut ends (2b) of the cement board (2), and locking tongue portions (5c, 5c...) which either face straight down or straight up between the vertical edge locking portions (5a) and the covered locking portions (5b), and which are inserted between either the uppermost parts or the lowermost parts of the tiles (1, 1...) and the cement board (2).

The invention discloses an optical module, which includes a housing, a sealing shell arranged in the housing, an optoelectronic component and a circuit board, the optoelectronic component is disposed in the sealing housing, the circuit board and the photoelectric module in the sealing housing The components are electrically connected, wherein the circuit board includes a first board and a second board disposed on the surface of the first board, the thickness of the second board is smaller than the thickness of the first board, and the second board is arranged on the surface of the first board. The board includes a high-speed link layer arranged on the surface layer and a reference layer arranged below the surface layer, and the second board extends into the sealed casing to be electrically connected with the photoelectric component; one of the side walls of the sealed casing includes The carrier and the insulating board, the second board of the circuit board passes through the opening between the carrier and the insulating board and is sealed and connected with the carrier and the insulating board, and the insulating board is arranged on the high-speed chain of the second board road layer side. The optical module has good high-speed transmission performance, low cost and good airtightness.

The invention discloses an optical fiber drawing technique, comprising the steps of 1) performing melt drawing, to be specific, melting a preform at 2200-2300 DEG C, and drawing by gravity sagging; 2)performing setting and cooling, to be specific, cooling the sagged yarn via a setting pipe to 500-600 DEG C; 3) performing drawing and cooling, to be specific, further cooling the yarn via a coolingdevice to 30-80 DEG C. The setting pipe in the step 2) is cooled by cooling water, the cooling water is cyclically utilized by a circulation system, and cleaning is performed during the cyclic use; acooling layer of the setting pipe has guide ribs inside, and the guide ribs are spiraled on a first metal pipe; the cooling water is introduced into the cooling layer and moves along the guide ribs. The optical fiber drawing technique designed herein has the advantages that the cooling water in the setting pipe is cleaned and cyclically utilized, the influence of scale upon heat exchange effect isrelieved, cooling effect of the cooling water is more effectively ensured, and the guide ribs in spiral arrangement can prevent deformation and exchange heat.