31results about How to "Not prone to oxidation reactions" patented technology

The invention relates to a celery seed extract composition and a preparation method thereof. The composition contains 30-90 parts by weight of celery seed extract, 10-70 parts by weight of thinner, 0.01-1 part by weight of antioxidant, and optional suspending agent, surfactant and preservative. The invention further relates to a soft capsule preparation containing the composition or an oral liquid preparation containing the composition, and the preparation method of the composition or a preparation method of the preparation. The composition is reasonable in types of accessories and a main drug, reasonable in matching dose and convenient to administrate, and has the advantages of stability, safety, rapid response, high bioavailability, small side effects, small administration dose and the like. The preparation method has the characteristics of simple process and stable product quality, and is easy to control.

The invention relates to the technical field of cutting machines. Aiming at the problem of burrs on the cutting surface of cardboard during cutting, it aims to provide a carton cutting device, which includes a mounting frame and a worktable installed on the mounting frame. A lifting component is installed on the frame, a laser component is installed in the sealed box, a laser drive component is installed in the sealed box, and a ventilation component and a vacuum component are installed on one side of the mounting frame. Using the laser cutting method, when the laser component is cutting, the laser component with the function of a cutting knife does not directly contact the cardboard, so that the cutting surface of the cardboard is not easy to appear burrs, and the cutting quality of the cardboard is improved; Inert gas is filled, and the inert gas belongs to the gas that is not easy to oxidize, so that when the cardboard is cut, it is not easy to locally burn at the cutting place, and the cardboard is not easy to be locally carbonized, so that the cutting effect of the cardboard is better.

The invention relates to a composition of a hazel leaf extract and a preparation method thereof. The composition provided by the invention comprises the following constituents in parts by weight: 30-90 parts of hazel leaf extract, 10-70 parts of diluents, 0.01-1 part of antioxygen, as well as optional parts of suspending agent and surface active agent and preservative. The invention also relates to a soft capsule or an oral liquid preparation containing the composition and the preparation method of the composition or the preparation. In the invention, the kind and the proportioning dose of the auxiliary materials and the main drug in the composition are reasonable and the composition has the advantages of stability and safety, quick results, high bioavailability, little side effect, little administration dose, convenience for drug administration and the like. The preparation method provided by the invention has the characteristics of simple process, easiness in controlling and stable product quality.

The invention provides a fireproof material for protective building materials and a preparation method thereof, wherein the fireproof material for protective building materials includes the following raw materials in parts by weight: 15-60 parts of magnesium chloride, 12-55 parts of magnesium oxide, triethylenetetramine 10-30 parts, ethylenediamine 7-12 parts, aluminum hydroxide 10-30 parts, resin 10-30 parts, expandable graphite 15-55 parts, hydrotalcite 8-12 parts, flame retardant 20-33 parts; The flame retardant is ammonium phosphate, pecan husk, and borax with a volume ratio of 0.1 to 0.3: 1 to 5: 1.2 to 3; each raw material in the present invention is combined with each other to synergistically exert flame retardant performance, and in specific process parameters Under the condition of adjusting speed, temperature and time, the best flame retardant effect can be achieved.

The invention discloses an agricultural planting support frame based on temperature self-adaptive adjustment, which belongs to the field of agriculture. It is an agricultural planting support frame based on temperature self-adaptive adjustment. The T-shaped block is displaced, and the distance between multiple longitudinal sliding rods is adaptively adjusted, and the sliding efficiency of the T-shaped block inside the T-shaped groove is improved through balls. The dew reacts with the heating insulation block inside the storage tank and releases heat, so that the horizontal fixed rod and the vertical sliding rod maintain a constant temperature state, reducing the damage to plants caused by low temperatures. The pole is used to limit the position. When waterlogging occurs in the planting area, the water-expanding rubber expands when encountering water, thereby increasing the height of the horizontal fixing pole and reducing waterlogging damage to the plants at the upper end of the horizontal fixing pole.

The invention provides a method for preventing nodulation of carbon sleeve rolls in a continuous annealing furnace. The method includes: after cold rolling, the non-oriented silicon steel is washed with alkali, rinsed and dried to remove residual oil and iron on the surface of hard rolled coils, and then enter the pH value In 4‑6 sodium chromate solution, surface passivation treatment, rinse and dry. The sodium chromate concentration in the sodium chromate solution with a pH value of 4-6 is 20-50g / L, the pH value is 4-6, and the solution temperature is 35-50°C. A dense passivation film is formed on the surface of the passivated cold-rolled non-oriented silicon steel, which can effectively prevent the oxidation of the surface of the non-oriented silicon steel during the annealing process, thereby preventing the formation of nodules on the carbon rollers in the furnace. The method of the invention can effectively prolong the service life of the carbon sleeve rolls, reduce the occurrence of surface scratches and dent defects caused by nodules on the carbon sleeve rolls, and improve the surface quality of non-oriented silicon steel products. In addition, since the non-oriented silicon steel is not easily oxidized in the annealing furnace, the use of H 2 , greatly reducing the cost of the annealing production process, while improving the safety of the production process.