66results about How to "Guaranteed modification effect" patented technology

The invention provides a preparation method for multi-functional hydrophilic polyester fibers. The method is characterized by specifically comprising the following steps: firstly, mixing terephthalic acid with ethylene glycol to prepare a paste; adding into an esterfying reactor to carry out first esterfying reaction; when the collecting quantity of byproducts reaches 82-95% of a theoretical value, adding sorbitol and polyethylene glycol to carry out second esterfying reaction; after finishing esterfying reaction, performing polycondensation reaction on obtained esterfied products so as to obtain a hydrophilic polyester chip; secondly, preparing nanometer coffee carbon powder; thirdly, preparing nanometer bamboo charcoal powder containing an ultraviolet resistor; fourthly, performing fusing granulation on the nanometer bamboo charcoal powder containing the ultraviolet resistor and the hydrophilic polyester chip so as to obtain functional master batch; fifthly, performing fusing spinning on the functional master batch and the hydrophilic polyester chip so as to obtain the multi-functional hydrophilic polyester fibers. The multi-functional hydrophilic polyester fibers have great hydrophilic performance and continuously have the functions of the ultraviolet resistor and the bamboo charcoal for a long term.

The invention provides a hydrophilic polyester fiber containing coffee carbon and a preparation method of the hydrophilic polyester fiber. The hydrophilic polyester fiber containing coffee carbon is characterized by comprising a hydrophilic polyester fiber body and nanoscale coffee carbon powder scattered in the hydrophilic polyester fiber body. The hydrophilic polyester fiber containing coffee carbon is good in hydrophilicity, can be used for deodorizing, warming and is dried quickly, and brings touch sensation of enjoying refreshing and comfort to consumers.

The invention discloses a control method for Ds inclusions of medium carbon sulfur-and-aluminum-containing deoxidized non-tempered steel. By adjusting the adding position of S and optimizing multi-component compositions of refined slag and molten steel compositions, on the premise of meeting the requirement of a product for oxygen, the inclusions are converted into a solid phase easy to float upwards, generation of liquid inclusions and CaS is avoided, the vacuum treatment time is further optimized, the removal efficiency of the inclusions, especially the large-particle Ds-type inclusions, inmolten steel is improved, the effect of controlling the Ds-type inclusions in the steel is achieved, and the Ds inclusions in a rolled material can be stably controlled to be 0.5 level or below duringactual production.

The invention relates to a preparation method of high-hydrophilicity flame-retardant polyester fiber, which comprises the steps of (1) enabling a copolymer flame retardant to react with polyalcohol to obtain CEPPA (carboxethyl phenylphosphinic acid)-polyalcohol; (2) enabling hydroxyl-terminated siloxane to react with ethylene glycol in the presence of a catalyst to obtain a hydroxyl-terminated siloxane-ethylene glycol solution; (3) preparing slurry, and adding the prepared slurry into an esterification reaction kettle to perform a first esterification reaction; (4) when the quantity of the collected byproducts reaches 82-95% of the theoretical value, adding polyalcohol, sodium sulfo bis(hydroxyethyl) isophthalate (SIPE) and polyethylene glycol (PEG) to perform a second esterification reaction; (5) after the esterification reaction, adding the products obtained by the steps (1) and (2) into a reaction kettle, and after the condensation polymerization reaction, performing melt spinning to obtain the high-hydrophilicity flame-retardant polyester fiber. The limit oxygen index of the polyester fiber prepared by the method provided by the invention is over 30%, the moisture regain is 0.6-2.0%, and the fiber has relatively high moisture regain and is comfortable to wear.

The invention relates to high-hydrophilic flame-retardant polyester and a preparation method thereof. The flame-retardant polyester comprises terephthalic acid, polyatomic alcohol, a copolymerization fire retardant and hydroxyl-terminated siloxane. The preparation method comprises the steps as follows: 1), the copolymerization fire retardant is reacted with the polyatomic alcohol, so that a reaction product CEPPA-polyatomic alcohol is obtained; 2), the hydroxyl-terminated siloxane is reacted with ethylene glycol under the effect of a catalyst, so that a hydroxyl-terminated siloxane-ethylene glycol solution is obtained; 3), a slurry is prepared, and the prepared slurry is added to an esterification reaction kettle for first esterification reaction; 4), when the collection amount of a by-product reaches 82%-95% of a theoretical value, the polyatomic alcohol, 5-sodium sulfo bis(-hydroxyethyl) isophthalate (SIPE) and PEG (polyethylene glycol) are added, and second esterification reaction is performed; and 5), after the esterification reaction, products obtained in the step 1) and the step 2) are added to the reaction kettle, and condensation polymerization is performed, so that the high-hydrophilic flame-retardant polyester is obtained. The high-hydrophilic flame-retardant polyester has a higher flame-retardant function and a higher hydrophilic function.

The invention relates to a liquid steel secondary refining method for steelmaking, in particular to a new method for modifying the top dross in a steel ladle of rimmed steel. The method is achieved bystirring the top dross by adopting a mechanical stirring way to promote the contact and reaction of a modifier and the top dross and react, wherein the modifier comprises the main components as follows in parts by weight: 30-70 parts of CaO and 70-30 parts of Al. The method is suitable for aluminum killed low carbon steel with the carbon content of 150-500ppm or aluminum killed ultralow carbon steel with the carbon content less than 60ppm. Compared with the prior art, the invention effectively ensures the modifying effect of the top dross of the rimmed steel and lowers the FeO content in steel slag to below 4 percent and can be used for producing steel for cold-rolled sheets with high cleanliness.

The invention relates to a laser cladding device. The laser cladding device comprises a supporting base and a nozzle which is located below the supporting base. The supporting base is provided with a spectroscope and at least two reflection focus lenses. The spectroscope receives an incident beam and reflects the incident beam into a reflection beam, and the reflection focus lenses receive the reflection beam and convert the reflection beam into focused beams. The supporting base is further provided with a first cooling system and a second cooling system, wherein the first cooling system is used for enabling a cooling medium to circularly flow so as to cool the reflection focus lenses, and the second cooling system is used for enabling the cooling medium to circularly flow so as to cool the spectroscope. The laser cladding device is provided with two independent water path systems, water or cooling liquid at different temperatures is input to the spectroscope and the reflection focus lenses according to the heat on the spectroscope and the heat on the reflection focus lenses, the purpose of respective cooling is achieved, a relatively-good cooling effect is achieved, the service life of the spectroscope and the reflection focus lenses is prolonged, thermal deformation of the focus lenses and the spectroscope is reduced, and the modification or repairing situation of a cladded base body is guaranteed.

The invention discloses a method for enhancing air poison resistance of Zr2Fe alloy. The method for enhancing the air poison resistance of the Zr2Fe alloy includes steps: S1, simultaneously loading Zr2Fe alloy particles and stainless steel balls into a stainless steel vacuum ball milling tank, and connecting the stainless steel vacuum ball milling tank with a hydrogen storage performance test system; S2, pumping gas out of the stainless steel vacuum ball milling tank, and inflating the stainless steel vacuum ball milling tank with argon gas; S3, performing ball milling on the Zr2Fe alloy particles; S4, inflating the stainless steel vacuum ball milling tank with the argon gas, and passivating the Zr2Fe alloy particles; S5, placing the stainless steel vacuum ball milling tank into a glove box, controlling air inflow of air, and exposing Zr2Fe alloy powder to air; S6, sieving the Zr2Fe alloy powder; S7, preparing silicon dioxide sol; S8, adding the Zr2Fe alloy powder into the silicon dioxide sol and stirring the Zr2Fe alloy powder so as to form cream; S9, heating and drying the cream. The method for enhancing the air poison resistance of the Zr2Fe alloy solves the problem that the Zr2Fe alloy is poor in air poison resisting ability, strengthens use stability of the Zr2Fe alloy, and prolongs use life of the Zr2Fe alloy.

The invention discloses a thick-wire single-power-source shallow-fusion-depth high-efficiency submerged-arc automatic surfacing process method. The method comprises the following steps that a weldingwire is used for winding six fine welding wires around one center welding wire to be spiraled into a spiral structure; and the prepared welding wire is fed into a welding area of a submerged-arc automatic trolley through a wire guide pipe and is connected with a welding power source to transmit welding current, the submerged-arc automatic trolley can move along the joint of a base material, meanwhile, a flux is applied to the welding area in an assisted mode until surfacing is completed. According to the method, the rotation motion of the welding arc is further driven under the action of mechanical rotation generated during feeding of the spiral-shaped single wires, a liquid molten pool is forced to carry out fluid motion perpendicular to the fusion depth direction so as to reduce the convection motion of the metal in the molten pool to the bottom, so that the heat inside the molten pool is conducted in the width direction of a weld joint, then the melting amount of the root of the molten pool is reduced, and a welding bead is enabled to be expanded in the width direction. According to the process method, the cable type welding wire shallow fusion depth with the diameter of 6.0 mmand wide-bead submerged-arc automatic surfacing are achieved, extremely high surfacing efficiency is realized, meanwhile, the welding cost can be further reduced.

The invention relates to a step releasing type solidifying stabilizing remediating method for heavy metal polluted soil. The method comprises the steps of (1) preparing a step releasing control agent;(2) treating the heavy metal polluted soil by a medicine; (3) stacking the polluted soil after medicine treating; and detecting for inspection and acceptance; and (4) backfilling the heavy metal polluted soil into a planned backfilling area after passing the inspection. According to the method, the heavy metal can be efficiently stabilized for a long time; the cost is low; the effect is good; andthe heavy metal can be released by steps.

The invention relates to the technical field of expansive soil treatment processes, in particular to a construction process of cement modified soil. The construction process mainly comprises the following steps: first, the expansion level of an expansive soil material is tested, and a physical property test and a compaction test are carried out on the cement modified soil subjected to filling replacement; second, after the property of the cement modified soil is detected, regulated and controlled, mixing and filling preparation is conducted; third, operation construction is conducted through mechanical equipment; 4, the construction quality of the cement modified soil for filling construction is subjected to quality control and detection; and fifth, real-time detection and timed maintenance are conducted. The construction process is used for improving expansive soil and the construction quality of a channel section and a construction section to ensure the cement modifying effect of theexpensive soil and the filling quality of the modified soil material, by regulating construction data to standard parameters, the functions of high water content quick decreasing, ultra-large soil mass breaking, cement mixing uniformity improving and the like can be quickly realized, meanwhile construction operation is efficient and easy, the quality is controllable, construction is reliable, thecost is saved, and the construction process has obvious social benefits and economic benefits.

The invention relates to the technical field of processing of materials and particularly relates to multi-specification type aluminum profile sand blasting equipment. The multi-specification type aluminum profile sand blasting equipment comprises a base, wherein a sand blasting box is fixedly mounted on the base; base tables are fixedly mounted in the sand blasting box; a driving shaft is rotatably mounted on each base table; a rotating wheel is fixedly mounted on each driving shaft; a connecting rod is rotatably connected with each rotating wheel; each connecting rod is rotatably connected with a sliding seat; a limiting groove is formed in each sliding seat; a screw is rotatably mounted in each limiting groove; each screw is connected with a servo motor and is in threaded connection with a nut seat; a caster is rotatably mounted on each nut seat and is movably connected with the interior of a guide groove; a double-sided clamping mechanism is designed in the sand blasting box in allusion to aluminum profile workpieces; two clamping blocks are mainly used as main clamping parts; and flexible limiting mechanisms are formed on the clamping blocks through clamping columns which are arranged and mounted, so that the multi-specification type aluminum profile sand blasting equipment can be perfectly attached with the surface shapes of the workpieces and can adaptively fix different specifications of aluminum profiles.

The invention provides a low-temperature thermosetting waterborne peelable adhesive and a preparation method thereof. The peelable adhesive comprises the following components: 50-70 parts of waterborne polyurethane resin, 3-7 parts of a silane coupling agent, 3-7 parts of nano graphene, 1-2 parts of a dispersing agent, 1-5 parts of a film-forming agent, 0.1-1 part of a wetting agent, 1-1.5 parts of a defoaming agent, 0.5-2 parts of a thickening agent, 0.3-0.5 part of color paste and 20-40 parts of filler. The preparation method comprises the following steps: weighing the raw materials; diluting the thickening agent and preparing a nano graphene dispersion liquid; uniformly mixing the nano graphene dispersion liquid and the waterborne polyurethane for three times, sequentially adding the silane coupling agent, the film-forming agent, the wetting agent, the defoaming agent, the color paste, the thickening agent and the filler, and uniformly stirring to obtain the low-temperature thermosetting waterborne peelable adhesive. The low-temperature thermosetting waterborne peelable adhesive is curable at low temperature, good in flexibility, good in adhesive force, peelable and capable of adapting to CNC operation, and the preparation method is simple and environmentally friendly.