33results about How to "Effective resizing" patented technology

The invention discloses a method for preparing a Fe-Si-Al soft magnetic material with high microwave permeability, belonging to the field of magnetic materials with high-frequency magnetic properties. The method disclosed by the invention comprises the following steps of: (1) sieving 100-mesh Fe-Si-Al raw powder by using a 100-mesh sieve, a 200-mesh sieve and a 300-mesh sieve, wherein the powder being 75-150 microns is called as the A-class powder, and the powder being 48-75 microns is called as the B-class powder, and the Fe-Si-Al raw powder comprises the following components in weight percentage: (82.6-x-7) percent of Fe, (10.3+x) percent of Si and (7.1+y) percent of Al; the absolute value of x is not more than 0.7 and the absolute vale of y is not more than 1.7; (2) carrying out flaky treatment and controlling the ratio of average grain size/thickness of the powder body to be 14-26; and (3) mixing the powder again to obtain the soft magnetic alloy powder body with high microwave permeability according to the mass ratio of the A-class powder to the B-class powder of 0.5-2. The method for preparing the Fe-Si-Al soft magnetic material with high microwave permeability disclosed by the invention has a simple process and is convenient to operate; the Fe-Si-Al alloy powder is sieved before mechanical ball milling, so that the microwave permeability is improved favorably; if the flaky treatment is further carried out, the microwave permeability can be improved by a large margin.

The invention relates to a preparation method of a thermoplastic polyurethane micro air bag elastomer material. The preparation method comprises the following steps of (1) feeding liquid raw materials such as diisocyanate molecules and a solid additive into a twin screw reactor, and carrying out polymerization chain extending reaction to obtain a high molecular weight hot melt; (2) pushing the high molecular weight hot melt into a mixing extrusion molding machine, and carrying out continuous reaction to produce a macromolecular thermoplastic polyurethane melt; (3) continuously adding the obtained macromolecular thermoplastic polyurethane melt, polymer particles and the like in a foaming extrusion molding machine, and then extruding the material from a mold head to an underwater pelletizing chamber in a form of a high-pressure hot melt; and (4) carrying pelletization by process water, sending the pellet-carrying process water to a separation machine by a multi-stage pressure relief and expansion process water pipeline, and carrying out separation, screening and drying to obtain a target product. Compared with the prior art, by adopting the preparation method provided by the invention, the thermoplastic polyurethane elastomer material can be directly prepared from the liquid raw materials such as MDI, so that the energy consumption and the material consumption are greatly lowered, the yield of a product is increased, the production efficiency of the product is improved and the like.

The invention relates to a degradable antifouling thermoplastic micro-airbag polymer elastomer material which is prepared from the following ingredients in percentage by weight: 88 to 98% of polymer raw material, 0.05 to 0.5% of nucleating agent, 0.4 to 2% of foaming agent and 0.1 to 10% of environment-friendly degradable organic perfluorosebacamidine material. A preparation method specifically comprises the steps: (1) feeding the polymer raw material, the nucleating agent and the environment-friendly degradable organic perfluorosebacamidine material from a feeding opening in the front end of a twin-screw extruder, feeding the foaming agent from a feeding opening in a middle section of the twin-screw extruder, hot melting and fully mixing all the raw materials, then sending into a static mixer to be further homogenized and then controlling pressure and quantitatively conveying by a melt pump; (2) sending hot melt sent out by the melt pump into an underwater pelletizing chamber to be pelletized, bringing out by technological water to be separated and screening and drying the particles to obtain a target product. Compared with the prior art, the degradable antifouling thermoplastic micro-airbag polymer elastomer material disclosed by the invention effectively achieves performance of antifouling, soiling-resistant, oil-resistant, contamination-resistant, attractive and good touch and is especially suitable for being applied to the fields of shoe materials, food package and the like.

The invention relates to a thermoplastic micro-sac polymer elastomer material and a preparation method thereof. The material is prepared from the following components in percentage by weight: 0.1-97 percent of a support frame polymer material, 0.1-97 percent of pressure-resistance slow-rebound polymer material, 0.01-0.5 percent of a nucleating agent, and 0.1-10 percent of a foaming agent, wherein the support frame polymer material is a high-molecular-weight, high-hardness, high-crystalline or high-polarity polymer material; the pressure-resistance slow-rebound polymer material is a low-molecular-weight, low-hardness, low-crystalline to no irregular shape, low-polarity/no-polarity polymer material. Compared with the prior art, the material has the advantages that a winding network formed by the micro-sac structure and opening pores achieves an interpenetration structure, the rebound force and other material physical performance are excellent, buffer feedback is quick, contact and comfortable performance are high, exfoliated volume is controllable and the like.

The invention provides a heating anti-overload control method and device of an air conditioner and the air conditioner, and relates to the technical field of air conditioners. The method comprises thesteps of: continuously detecting the temperature of an indoor heat exchanger coiler during heating; controlling an operation state of an outer fan according to the temperature of the indoor heat exchanger coiler, a preset first numerical value and a preset second numerical value; judging if a compressor is overloaded for tripping; and correcting the first numerical value when judging that the compressor is overloaded for tripping. The method judges if an air conditioning system is located in a high-load state through detection if the compressor is overloaded, so that a parameter set value oftriggering the outer fan to stop operation is corrected, the start and top protection timeliness and effectiveness of the outer fan are guaranteed, the frequent overload tripping of the compressor isprevented, and the heating anti-overload control of the air conditioner is realized.

The invention provides a hollow roof bolt circulating pressure slip casting method and a special slip casting system. The system comprises a hollow roof bolt, a pulp stop plug, a slip casting joint, a pulp outlet pipeline, a pressure gauge, a slip casting machine and a pulp reservoir; one end of a pulp returning pipeline is connected with a pulp returning joint and the other end extends above the pulp reservoir; the other end of the pulp returning joint is inserted into a half-opening lancing on the pulp stop plug and extends into the anchor eye in which the hollow roof bolt is arranged; the pressure gauge and a disconnecting valve are arranged at the pulp returning pipeline. According to the designed slip casting pressure, circulating pressure slip casting is realized in the real sense, thereby greatly improving slip casting construction quality.

The invention discloses a water-cooled drilling machine mud collecting device, comprising a device body, the device body is composed of a mud suction device arranged on the side of the device body, a telescopic conduit arranged on the side of the suction device, and an end portion of the telescopic conduit. This kind of water-cooled drilling machine mud collection device can effectively adjust the size of the mud suction by using the free opening and closing of the movable arc plate, and then fix the two movable arc plates to a suitable Therefore, it is suitable for drill bits of different sizes and is easy to use. At the same time, the suction cup can effectively fix the suction cup and keep the suction cup stable, so as to absorb the mud stably, avoid leakage, and greatly improve the collection efficiency of the mud. It can effectively heat and dry the mud and remove the moisture in the mud, so as to facilitate subsequent treatment, and it is very practical.

The invention discloses a machining device suitable for cutting a round stainless steel sheet. The machining device comprises a cutting machine installing rack, a sheet fixing platform and a plasma cutting mechanism, wherein the sheet fixing platform and the plasma cutting mechanism are arranged on the cutting machine installing rack. The machining device is characterized in that the plasma cutting mechanism comprises a rotary rod with the top end connected to the cutting machine installing rack, and a plasma cutting head fixed to the bottom end of the rotary rod through a transversely-stretching rod; the transversely-stretching rod comprises an inner rod with an external thread and two outer rods; and one end of one outer rod is in threaded connection with the inner rod, the other end of one outer rod is fixedly connected with the bottom end of the rotary rod, one end of the other outer rod is in threaded connection with the inner rod, and the other end of the other outer rod is fixedly connected with the plasma cutting head. The machining device has the beneficial effects that operation is easy and convenient, and raw materials are saved.

The invention belongs to the technical field of non-woven fabrics and discloses an antibacterial spunlace non-woven fabric and a preparation method thereof. The method comprises the following steps ofperforming opening; performing film covering: stirring and dissolving protein hydrogel to obtain a film coating solution, immersing the opened non-woven fabric monomer fibers into the film coating solution at least once, performing drying, and performing compounding on the surfaces of the non-woven fabric monomer fibers to form a hydrogel film layer with a specified thickness; performing cardingto form a net, wherein the fiber net at least comprises two layers of non-parallel fibers, and the carding of each layer of fibers is as follows: laying, in a flat way, a plurality of non-woven fabricmonomer fibers coated with the hydrogel film layer in parallel through ultrasonic vibration; and performing spunlace molding: placing the carded and molded fiber net on an injector, first carrying out spunlace treatment on the fiber net for 5-10 minutes with a sodium hydroxide solution having the pH value greater than 11.5 and the temperature from 30 DEG C to 85 DEG C, and then carrying out the spunlace treatment on the fiber net for 25-30 minutes with atomized water to prepare the porous antibacterial spunlace non-woven fabric, wherein the uniformity of the sizes of through holes in the non-woven fabric can be effectively ensured based on the steps.

The invention discloses an automatic discharging, moving and swinging device of a geological exploration drill pipe, and belongs to the technical field of geological drilling. The device comprises a bottom frame body and a drill pipe vertical frame, one end of the bottom frame body is provided with a vertical driving hydraulic cylinder through a shaft, and the vertical driving hydraulic cylinder is connected with a supporting frame shaft arranged at the other end of the bottom frame body through a shaft; the bottom end of the rear portion of the drill pipe vertical frame is arranged in a sliding groove in the inner side of the bottom frame body through a shaft, and the supporting frame shaft is in shaft connection with the middle of the rear portion of the drill pipe vertical frame; a vertical limiting frame is arranged on the front side of the drill pipe vertical frame, a transverse sliding frame is arranged on the outer side of the vertical limiting frame, and a transverse driving module and a vertical sliding frame are arranged in the transverse sliding frame; a vertical driving module and a lateral sliding frame are arranged in the vertical sliding frame, a lateral driving module and a clamping mounting frame are arranged in the lateral sliding frame, and a clamping jaw is arranged on the clamping mounting frame. The problems that existing drill pipe discharging, moving andswinging equipment is tedious in step and low in flexibility are solved, drill pipes to be conveyed in batches can be vertically erected in advance, the drill pipes are clamped by clamping bodies oneby one, and the overall stability is improved.

The invention provides an oil way throttling device of a compressor, the compressor and an air conditioner, the oil way throttling device of the compressor comprises a main supporting seat, a first throttling channel and a throttling mechanism, the first throttling channel is arranged on the main supporting seat so that oil can flow, the throttling mechanism is arranged in the first throttling channel, and the throttling mechanism is arranged on the main supporting seat. The throttling mechanism can control the change of the throttling degree according to the rotating speed of a rotating shaft of the compressor, and then the pressure of the oil is controlled to change. The throttling capacity of the throttling mechanism is automatically adjusted through the rotating speed, the throttling capacity is weakened during high-frequency operation to avoid excessive back pressure, and the throttling capacity is enhanced during low-frequency operation to avoid energy efficiency reduction, so that the problem that the pressing force of the dynamic and static vortex plates is too large can be solved, and the problem that the movable vortex plates overturn can also be solved.

The invention discloses an arc-shaped plate fixed-distance conveying method for ampoules. By the adoption of an arc-shaped plate fixed-distance conveying device for ampoules, fixed-distance conveyance of ampoules is achieved. The method comprises the steps of 1, adjusting the distance between a first arc-shaped protective plate and a second arc-shaped protective plate on a trough base plate according to the size of the ampoules to be conveyed, and fixing the first arc-shaped protective plate and the second arc-shaped protective plate through bolts and nuts below the trough base plate; 2, placing the ampoules on the trough base plate, conveying the ampoules to a conveyer belt through a guiding channel formed by the first arc-shaped protective plate and the second arc-shaped protective plate, limiting the distance between the conveyed ampoules through ampoule clamping blocks on the conveyer belt, and finally conveying the ampoules with distance well limited out. The method is suitable for conveying ampoules in different specifications and sizes and has the advantages that the ampoules can be well protected and ampoule conveyance efficiency is not affected.

The invention discloses an adjustable shoe-like climber applied to the power field. The adjustable shoe-like climber comprises a shoe and a climber welded with a pad iron of a sole, wherein the climber comprises an upper part and a lower part; and sawteeth of the upper part and toothed buckles of the lower part are in toothed connection. The defects that a conventional shoe-like climber cannot adjust the size and a shoe mouth is larger are effectively overcome, and one climber which is capable of adjusting the size, provides a shoe mouth matched with one foot and is very high in practicability and adaptability is provided.