36results about How to "Guaranteed suspension stability" patented technology

The invention discloses early strength cement grout with low dehydration ratio for grouting. The stable early strength cement grout for pre-grouting of coal mineshaft surface comprises the following components in part by weight: 100 parts of silicate cement, 80-120 parts of water, 10-40 parts of suspending agent, 1 part of inorganic sodium salt and 0.03-0.1 part of organic alcohol early strength agent. The cement grout utilizes physical and chemical functions of composite admixture, improves the suspending stability of the cement grout and the early compression strength of a concretion body, improves the flow deformation feature and the movable shearing force of the grout and realizes controllable grout diffusion distance.

The invention relates to a method for maintaining the stability of a cherry plum juice and a stable cherry plum juice. The method comprises the following step: adding a hydrophilic colloid into the cherry plum juice, wherein the hydrophilic colloid is selected from two or more than two of a carrageenan, a gellan gum, a guar gum and a xanthan gum. According to the method, the variety, the proportion and the adding amount of the natural food colloids are confirmed in an optimization manner by tracking and measuring polysaccharides contained in cherry plums and the characteristics of electric charges carried by other macromolecular substances and different charged particles of the cherry plums, so that the Zeta potentials of the cherry plum juice are controlled. Thus, a stable weak gelatum state is obtained by utilizing the mutual repellent-attractive acting force formed among the polysaccharides, the macromolecular substances and the natural food colloid. Therefore, the cherry plum juice has the proper viscosity and pectin content, and the adding amount of the natural food colloid is reduced. As a result, the good floating stability of the cherry plum juice basically without color fading during a processing and storing process is realized.

The invention provides a delayed gelatinizing composite plugging liquid and a preparation method thereof, and the method comprises the following steps: adding 0-1.0% of a delay agent into 100% of fresh water according to the total percentage of fresh water, continuously adding 1-10% of a polymer suspending agent A and 0.5-3% of a polymer suspending agent B after the delay agent is dissolved, continuously adding 0.1-3% of a cross-linking agent after the polymer suspending agent is dissolved, and uniformly stirring to obtain the delayed gelatinizing composite plugging liquid. And then sequentially adding 50-100% of a curing main agent, 5-20% of a curing auxiliary agent, 0-100% of a density regulator, 0-2% of an activating agent and 0-3% of a retarder, and stirring for 20-60 minutes at the speed of 800r/min until solid-phase particles are uniformly dispersed, thereby obtaining the water-dispersion-resistant delayed gelatinizing composite plugging liquid suitable for the high-temperature fractured formation. The plugging working fluid disclosed by the invention is good in pumpability, controllable in crosslinking time and curing time, capable of resisting the temperature of 150 DEG C or above, simple in construction process and applicable to plugging operation in the high-temperature deep stratum drilling process.

The invention discloses a direct current converter valve with linear valve layer arrangement. Each valve layer comprises a first valve module and a second valve module which are connected in series. The first valve module comprises a first reactor, a first thyristor assembly and a second reactor. The second valve module comprises a third reactor, a second thyristor assembly and a fourth reactor. The first reactor, the first thyristor assembly, the second reactor, the third reactor, the second thyristor assembly and the fourth reactor are sequentially connected in sequence. The first thyristor assembly and the second thyristor assembly are linearly arranged to form a first arrangement line, and the first reactor, the second reactor, the third reactor and the fourth reactor are linearly arranged to form a second arrangement line. The first arrangement line and the second arrangement line are parallel with each other. The direct current converter valve of the invention is strong in shock resistance, and the projection area of the whole valve layers is greatly reduced.

The invention relates to a treatment method of a silica sol and belongs to the technical fields of microelectronics auxiliary materials and ultra precision machining processes. The treatment method comprises the following steps: performing regeneration treatment on a strong acid cation exchange resin and a strong base cation exchange resin, respectively, and mixing to obtain a strong acid and strong base mixed resin; putting a common silica sol and the strong acid and strong base mixed resin together, and then stirring at a controlled temperature until even mixing; an imidazole compound, an organic acid and an organic base are added in the stirring process. The treatment method of the silica sol has the advantages that the defects of the common silica sol in the prior art in CMP polishing application are overcome, the application range of the common silica sol in CMP polishing is expanded, the common silica sol is treated so as to stably exist in the range of pH 1 to 12, and the particle stability can be maintained in the CMP polishing process and the temperature stability in the polishing process can be kept, and as a result, an even surface can be obtained.

The invention relates to a hair-washing and hair-caring composition and a preparation method thereof, relating to the field of daily use chemical. According to the hair-washing and hair-caring composition, trihydroxystearin is taken as a suspending agent and can form a net-shaped structure with a relatively weak bonding force with other components by virtue of the actions forces of hydrogen bondsand molecules, so that the suspension stability of a formula can be well maintained. The net-shaped structure with a relatively weak bonding force can be broken along with twisting in the use processof the product, so that a conditioning agent can be adequately released so as to in contact with hair. The twisting of hair caused by a traditional macromolecule suspending agent is avoided, and the conditioning agent can be in adequate contact with hair so as to take effects, so that relatively good washing and caring effects are maintained, meanwhile, the addition amount of the conditioning agent is reduced, and the production cost is lowered. The preparation method of the hair-washing and hair-caring composition is simple in operation, low in requirements on equipment and process conditionsand suitable for industrial large-scale production and can be used for preparing the hair-washing and hair-caring composition by virtue of simple mixed operations.

The invention relates to a skin percutaneous absorption drug of adjuvant-containing mometasone furoate and adjuvant-containing water. The skin percutaneous absorption drug comprises mometasone furoate and water, wherein the packing manner of the mometasone furoate adopts the individual packing, the mometasone furoate contains one or a plurality of solid medicine adjuvants, and is insoluble, the D90 particle size is 0.1-10 mum, the packing manner of the water adopts the individual packing, and the water contains one or a plurality of soluble medicinal adjuvants.

The invention relates to a transdermally absorbed medicine comprising adjuvant-containing pharmaceutical microparticles and adjuvant-containing water for skin use, which is consisted of an individually-packaged skin pharmaceutical preparation that contains one or more solid pharmaceutical adjuvants, is insoluble in water and has a D90 particle size of 0.1-10 mum, and individually-packaged water containing one or more water-soluble pharmaceutical adjuvants.

The present invention provides a processing method of buckwheat drink and belongs to the field of food processing. The method comprises the following steps: the buckwheat drink is mainly prepared frombuckwheat as a raw material and by mixing other cereals; and the buckwheat drink is prepared by raw material pre-treating, cereal porous structure modifying and stabilizing, blending and homogenizing, and sterilizing and canning. The pressing method is characterized in that the cereal is used as the raw material; the raw material is subjected to superheated steam pressurized puffing combined action; an oxygen-free environment during the superheated steam treatment can fully and effectively inactivate lipase and at the same time reduce damages of easily oxidized active ingredients in the cereals; moreover, the superheated steam is also used as puffing power; a closed state of high pressure is instantaneously reduced to normal pressure; so that tissue is fully puffed; no other puffing methods of squeezing, granulating, etc. are needed; added low polymerization degree konjac linear dextrin for solubilizing and stabilizing can partially penetrate into pores of cereal powder under the action of temperature and pressure; the other part dissolves in water to be acted as a surfactant. The processing method increases the water solubility and stability of the cereals and achieves purposes of not adding thickeners and stabilizers.

The invention relates to a transdermal absorption drug for skin prepared from hydrocortisone butyrate containing adjuvant and water containing adjuvant. The transdermal absorption drug is prepared from single-packaged hydrocortisone butyrate and single-packaged water, wherein the hydrocortisone butyrate contains one or several kinds of solid pharmaceutical adjuvant and is difficult to dissolve in water, and the D90 grain size of the hydrocortisone butyrate is 0.1-10mum; and the water contains one or several kinds of water-soluble pharmaceutical adjuvant.

The invention relates to a transdermal absorption medicament used for skins and comprising adjuvant-containing methylprednisolone aceponate and adjuvant-containing water. The medicament comprises individually packaged methylprednisolone aceponate which contains one or several solid pharmaceutic adjuvants, is insoluble in water and has D90 particle sizes of 0.1-10mum, and individually packaged water containing one or several pharmaceutic adjuvants soluble in water.

The invention discloses a sub-mN superconductive plane suspension type vacuum attitude and orbit control test system, which specifically comprises a superconductive translation magnetic suspension system, a dual-mode motion measurement device and an ultralow-temperature refrigeration system, and realizes a large-area low-damping translation suspension method based on complete diamagnetism of a superconductor under zero-field cooling. A superconductive fence structure is introduced to inhibit the fringe effect of a superconductive plane, and more than 80% of an effective translation area is realized; in order to achieve a high-suspension air gap exceeding 10 mm, the superconductive temperature of the ultralow-temperature refrigerating system is required to be lower than 5 K; in order to realize sub-mN level translation resistance, the low-temperature uniformity of a superconducting plane is required to be superior to 0.5 K, the mounting planeness is required to be superior to 0.5 mm, and the magnetic field uniformity of a circular ring magnetic structure below a permanent magnetic levitation platform is controlled to be 1% or less; in order to measure the [mu]N-level micro force, a combined measurement mode of circumferential distribution of four precision nm-level displacement sensors is adopted; and in order to evaluate the large-range motion control capability of the micro-thruster, binocular vision is adopted to collect motion trails.

A multiple magnetic suspension device comprises a base and a suspension body arranged on the base, a wireless power supply transmitting coil is arranged in the base, a wireless power supply receiving coil corresponding to the wireless power supply transmitting coil is arranged in the suspension body, the base comprises a first-order base and a second-order base, and the suspension body comprises a first-order suspension body and a second-order suspension body. A first-order suspension body is arranged on the upper portion of the first-order base, a second-order base is arranged on the first-order suspension body, and a second-order suspension body is arranged on the upper portion of the second-order base. A multi-magnetic suspension structure is formed, the suspension stability of the suspension structure is ensured through uniform mass distribution and counterweight increase in the suspension structure, magnetic field interference is shielded through a metal material with high magnetic permeability, and the bearing capacity and the suspension height of a suspension body are enhanced; up-down adjustment is carried out through the displacement mechanism, left-right adjustment is carried out through the guide rail, man-machine mutual-aid experience is improved through the voice recognition system, the voice mutual-aid system and the display screen, and the user experience of an existing magnetic suspension device is overall improved.

The invention discloses a recyclable bearing box which comprises a box body, a base and a cover plate, wherein the base is arranged under the box body, the cover plate is arranged above the box body,at least a pair of bearing supports for supporting a mandrel wrapped by a coiled material are arranged in the box body, limiting parts for axially limiting the mandrel are arranged on the bearing supports, and a mandrel pressing plug plate for tightly pressing the mandrel is arranged in the box body above the bearing supports. The recyclable bearing box disclosed by the invention has high structural strength and strong bearing ability and compression resistance and can effectively ensure an accuracy requirement of the metal coiled material; furthermore, the recyclable bearing box is recyclable, so that resources are saved.

The invention discloses molybdenum disulfide nano lubricating oil capable of stably existing and a preparation method thereof, and the molybdenum disulfide nano lubricating oil is composed of molybdenum disulfide powder, a dispersant mixed solution and base oil; in the molybdenum disulfide nano lubricating oil, the mass fraction of the dispersing agent mixed solution is 8-15 wt%, and the mass fraction of the molybdenum disulfide powder is 0.1-1.0 wt%; the preparation method comprises the following steps: adding molybdenum disulfide powder into a dispersing agent mixed solution to obtain a mixed reaction system; heating the mixed reaction system, magnetically stirring, and naturally cooling after the reaction is finished, so as to obtain a dispersant-modified molybdenum disulfide mixed solution; and mixing the dispersant modified molybdenum disulfide mixed solution with the base oil, and carrying out ultrasonic dispersion treatment to obtain the molybdenum disulfide nano lubricating oil. The MoS2 nano lubricating oil can exist stably, the wear scar diameter under the extreme pressure condition can be remarkably reduced, and the lubricating property of base oil is remarkably improved.

The invention discloses a preparation and application method of a dispersing agent, carbon dioxide and silica fume discharged by a silicon iron plant are collected and form slurry to be used as a cement admixture, closed-loop treatment of waste at a production end is completed, meanwhile, the use amount of cement in building materials can be reduced, and the strength and durability of concrete or mortar can be improved.