16results about How to "Prevent discoloration" patented technology

The invention discloses a steel structure rust removal device for a construction site. The steel structure rust removal device comprises a walking plate trailer, a stirring box, a water storage box, a material storage box, a high-pressure pump, a liquid conveying pipe and an air compressor. The stirring box is fixed on the top surface of the walking plate trailer; a liquid outlet is formed in the bottom of one side wall of the stirring box; a water outlet communicated with the inner cavity of the stirring box is formed in the bottom wall of the water storage box; grinding materials are contained in the storage box, and a discharging gate is hinged to the bottom end of the storage box so that the grinding materials can be put into the stirring box and stirred and mixed with water to form grinding liquid; the high-pressure pump is fixed on the outer wall of the stirring box; an inlet of the high-pressure pump communicates with the liquid outlet; one end of the liquid conveying pipe is detachably connected with an outlet of the high-pressure pump, and a high-pressure nozzle is fixed at the other end; the air compressor is fixed to the top face of the walking plate trailer to provide high-pressure air, and an air outlet of the air compressor communicates with the liquid conveying pipe through an air pipe. Water and grinding materials are stirred to form mixed grinding liquid, the mixed grinding liquid is sprayed to the surface of the steel structure through high pressure for rust removal operation, and secondary pollution to the environment is avoided.

An arrangement for the degradation stable storage and transport of a liquid comprising a non-substituted saturated aliphatic C6-12 carboxylic acid in which the liquid is surrounded by a metallic container and covered with an oxygen free or at least heavily oxygen depleted inert gas phase atmosphere above the liquid.

The utility model discloses a safety type multi-chamber peritoneal infusion bag, and relates to the field of medical devices. A safety type multi-chamber peritoneal infusion bag comprises a bag body used for infusion. The infusion cavities are formed in the bag body and used for containing liquid medicine; the isolating strip is formed by welding an upper layer and a lower layer of the bag body and used for separating the infusion cavities, and when the infusion cavities are extruded by external force, the upper layer and the lower layer of the isolating strip are separated so that the adjacent infusion cavities can be communicated; the safety chamber is arranged on the bag body and is separated from the infusion chamber through an isolating strip; the number of the liquid filling openings is the same as that of the infusion cavities, and each liquid filling opening is communicated with one infusion cavity; the easily-broken plug is connected with the liquid filling opening and is used for closing the liquid filling opening when infusion is not carried out to the infusion cavity; the liquid guide port is communicated with the safety chamber and is used for guiding out the liquid medicine; and the breaking plug is connected with the liquid guide port and is used for closing the liquid guide port when the liquid medicine is not output. According to the utility model, the problems of inconvenience and sterile risk of the dosing plug opening are solved.

The invention belongs to the technical field of electrolyte additives, and particularly relates to an estersil compound and a preparation method and application thereof. Wherein the general formula of the estersil compound is as shown in formula (I) to formula (IV), R1 is methyl, ethyl, isopropyl, vinyl or phenyl, and R2 is CH2 = CH <->, CH3 <->, CH3CH2 <->, (CH3) 2CH <->, (CH3) 3C <-> or H <->. The estersil compound provided by the invention can be used as an electrolyte additive, and can inhibit discoloration of an electrolyte in an electrochemical device, so that the storage time is prolonged, and the comprehensive performance of the electrochemical device is improved.

The utility model provides an automatic tea picking machine which comprises a picking action mechanism, the picking action mechanism comprises a shell and a bionic mouth clamp arranged on the front side of the shell, the bionic mouth clamp is composed of an upper clamp body and a lower clamp body which are vertically symmetrical, the upper clamp body and the lower clamp body are rotationally connected with the front side of the shell respectively, and an upper blade and a lower blade are arranged on the front sides of the opposite sides of the upper clamp body and the lower clamp body respectively. When the bionic mouth clamp is closed, the upper blade and the lower blade perform cutting action; the picking driving mechanism is arranged in the shell and used for driving the bionic mouth clamp to be closed or opened; the collecting mechanism comprises a backpack, a suction mechanism is arranged in the backpack, the backpack is communicated with the interior of the shell through a pipeline, and when the bionic mouth clamp is closed, a cavity formed in the bionic mouth clamp is communicated with the interior of the shell. The tea leaf picking machine is light and easy to operate, the backpack and the suction mechanism can automatically collect tea leaves, physical labor is relieved, the duckbilled scissors complete the pruning and temporary storage process, the size of the duckbilled scissors is suitable for the tea leaves with the average size, and the accurate picking precision and quality are guaranteed.

The invention discloses a ureido-containing compound and a preparation method and application thereof.The structure of the ureido-containing compound contains a ureido structure, a double-bond structure and a nitrogen heterocyclic structure, and the preparation method of the ureido-containing compound is simple; the modulus and resolution of the photosensitive resin sheet can be improved by adding the photosensitive resin sheet into the photosensitive resin sheet, the adhesiveness of the photosensitive resin sheet with a base material after being cured at a low temperature of 200 DEG C can be improved, and the discoloration of a copper or copper alloy base material can be inhibited.

This invention discloses a cooking appliance and its cooking control method, as well as a computer-readable storage medium. The cooking appliance includes a pot body and a heating element. The pot body forms a cooking cavity, and the heating element heats the cooking cavity. The cooking control method includes the following steps: based on the working stage of the cooking appliance, entering a deactivation stage; controlling the treatment of the cooking cavity, the treatment including at least one of heating, vacuuming, and oxygen removal; controlling the working stage of the cooking appliance to enter the cooking stage. The technical solution of this invention aims to enable the cooking appliance to undergo deactivation treatment before steaming or boiling, preventing the food to be cooked from discoloring and turning yellow after high-temperature cooking, thereby improving the cooking effect and reliability of the cooking appliance.

This utility model discloses a conductive structure, a battery string, and a photovoltaic module, relating to the field of photovoltaic module manufacturing technology. The conductive structure specifically includes: a strip-shaped insulating tape, comprising an insulating layer and a tape substrate laminated to one side of the insulating layer; the insulating layer includes light-transmitting insulating regions and reflective insulating regions alternately arranged along the length of the insulating tape; and a conductive element corresponding to the insulating layer, the conductive element extending in the same direction as the insulating tape, with a first conductive region corresponding to the light-transmitting insulating region located on the side of the tape substrate away from the insulating layer, so that the first conductive region is electrically connected to the grid lines of the battery cells in the photovoltaic module. This conductive structure utilizes the light-transmitting insulating region to achieve effective contact between the first conductive region of the conductive element and the battery cells, and utilizes the reflective insulating region to reflect laser light spots outside the light-transmitting insulating region, effectively avoiding the problem of discoloration of the insulating adhesive.

This invention belongs to the field of coating technology and provides a wear-resistant coating for drone shells and its preparation method. The raw materials of the coating include: hydrogenated bisphenol A epoxy resin, vinyl-terminated fluorinated polybutadiene resin, core-shell powder, aluminum borate nanofibers, polyetherimide micro powder, wear-resistant additives, silane coupling agent KH-792, light stabilizer, leveling agent and environmentally friendly solvent. The preparation method includes: (1) mixing hydrogenated bisphenol A epoxy resin and vinyl-terminated fluorinated polybutadiene resin to form a resin matrix; (2) first adding core-shell powder and aluminum borate nanofibers to the resin matrix for dispersion; after cooling to 25-30℃, adding other raw materials, stirring and defoaming to obtain the finished product. This coating has high wear resistance, wind and sand erosion resistance, low temperature crack resistance, microcrack self-repair, strong UV aging resistance and high adhesion, which can significantly improve the long-term service stability and service life of drone shells in complex and harsh environments such as high altitude, wind and sand, high and low temperature alternation, and strong ultraviolet radiation.

The present application relates to a kind of herbicide composition and its preparation method and application.The active ingredient of the herbicide composition includes acetochlor, oxaziclomefone, 2,4-D isooctyl ester;Wherein, the mass ratio of acetochlor, oxaziclomefone, 2,4-D isooctyl ester is (1-60) :(1-25) :(1-35).The herbicide composition has good control effect on annual weeds in spring soybean field and spring corn field, and each active ingredient synergistic effect can significantly reduce the use dosage, and the dispersion effect is good, the weeding effect is excellent, has no influence on the following crops, is environment-friendly, high safety and stable system.

This invention provides a heat-resistant, migration-resistant, and moisture-adhesive starch-based material. By weight, the starch-based material comprises the following components: 60-85 parts natural starch, 3-8 parts composite crosslinking agent, 5-12 parts heat-resistant modified filler, 8-15 parts low-migration composite plasticizer, 2-6 parts moisture-adhesive functional regulator, 0.5-2 parts coupling agent, 0.3-1.5 parts antioxidant stabilizer, and 30-60 parts deionized water. This invention also provides a preparation method and application of the starch-based material. Through oxidative crosslinking composite modification, functional additive compounding, and three-dimensional network structure reconstruction technology, this invention constructs a dense and stable crosslinked network, effectively inhibiting the migration and precipitation of small molecule additives, significantly improving the material's high-temperature thermal stability and resistance to moisture-heat aging, while simultaneously endowing the material with durable and controllable moisture adhesion properties. The preparation process of this invention is simple, the raw materials are inexpensive and readily available, and the material is green and biodegradable. The resulting material can be widely used in food packaging, composite adhesives, medical bonding materials, daily-use moisture-adhesive products, and biodegradable coatings.

The utility model relates to the field of rhinestone production and processing, and provides a semi-open-close type rhinestone drying component which comprises a material frame capable of being opened and closed and further comprises a conveying device used for conveying the material frame. The drying device is provided with a drying box which is arranged above the conveying device and is used for drying the rhinestones; a first drying cavity, a second drying cavity and a third cooling cavity are formed in the drying box; the drying mechanism is arranged on the inner side walls of the first drying cavity and the second drying cavity, and the cooling mechanism is arranged on the inner side wall of the third cooling cavity and used for cooling the water drill. The turnover device is arranged in the middle of the first drying cavity and used for turning over the material frame so that the rhinestones in the material frame can be evenly heated. The equipment adopts the multiple drying cavities, moisture is rapidly dried through the high-temperature cavity, internal combined water is slowly discharged through the low-temperature cavity, and the drying efficiency is improved.

This utility model relates to the technical field of wide-angle rearview mirror lenses, and discloses a wide-angle lens for automotive exterior rearview mirrors, including a mirror frame. A fixing frame is fixedly connected to the inner wall of the mirror frame, and a connecting frame is connected to the inner wall of the fixing frame via a snap-fit ​​assembly for assembling and disassembling the lens body. The lens body is fixedly connected to the front end of the connecting frame, and a baffle is provided at the front end of the lens body. Both ends of the baffle are connected to the mirror frame via magnetic assemblies for assembling and disassembling the baffle. The lens body and the baffle have similar shapes. The snap-fit ​​assembly includes a spring fixedly connected to both sides of the inner wall of the connecting frame. In this utility model, the lens body can be pushed backward to remove it forward, providing convenient tool-free operation, avoiding damage from prying, tearing, or twisting, and offering strong compatibility with multi-material functional lenses and different vehicle models. This lowers the barrier to entry, saves time and costs, and ensures driving safety.

The invention discloses a boiling-resistant modified polypropylene material and a preparation method thereof. The boiling-resistant modified polypropylene material is prepared from the following raw materials in parts by mass: 50-70 parts of low-melt-index polypropylene, 2-10 parts of ultrahigh-melt-index polypropylene, 20-30 parts of talcum powder, 3-15 parts of a toughening agent, 1-5 parts of a compatilizer, 0.2-1 part of an antioxidant and 0.3-2 parts of carbon black. The low-melt-index polypropylene is co-polypropylene with the melt index of 10-50g / 10min at 230 DEG C / 2.16 kg; the ultrahigh melt index polypropylene is homo-polypropylene of which the melt index is 1200-1800g / 10min at 230 DEG C / 2.16 kg. The boiling-resistant modified polypropylene material disclosed by the invention has better high-temperature boiling resistance and can meet the experimental requirement of boiling for 4 hours at 99 DEG C, the foaming grade can reach 0-1 grade, and the color difference value change is less than 1.

The present invention provides an eyeglass lens having a lens substrate and an inorganic layer, and further having a metal-containing layer between the lens substrate and the inorganic layer, the metal-containing layer containing silver and one or more metals selected from the group consisting of cobalt, nickel, zinc, copper, zirconium, molybdenum, lead, gold, and palladium.