41results about How to "Meet preparation needs" patented technology

The invention discloses a dressing with functions of stopping bleeding and accelerating wound healing, which comprises small molecule polydeoxyribonucleotide (SMPDRN) extracted from salmon. The SMPDRN is extracted from salmon tissues, and the salmon tissues include salmon testis, semen, and eggs. Experiments of the present invention have proved that the effects of hemostasis, pain relief, anti-inflammation, promotion of wound healing and the like can be achieved. The small molecule polydeoxyribonucleotide (SMPDRN) used in the present invention is obtained by the preparation method provided in the present invention, and has the characteristics of molecular weight concentrated in the high-efficiency region, relatively simple components, high purity, simple process, and stable components. It meets the needs of the preparation of hemostatic dressings, enables the hemostatic dressings to obtain stable curative effect and ideal safety, overcomes the difficulty of animal preparations in the preparation of hemostatic dressings, and develops small molecule polydeoxyribonucleotides in the field of medicine of new applications.

Disclosed are a mobile concrete mixing plant and a batching machine thereof. The batching machine is provided with a batching machine body (100) supported on a predetermined base (510) by supporting legs (300), a conveying machine (400) and multiple supporting legs (300). The conveying machine (400) is suspended below the batching machine body (100) via a suspension component. The batching machine has a working state and a conveying state. When the working state is switched to the conveying state, the vertical height of the supporting legs (300) is reduced and the outline of the batching machine is reduced so that before transferred and transported the batching machine body (100) does not need to be separated from the conveying machine (400) and materials do not need to be conveyed respectively thereby enabling the batching machine to possess better transfer and transportation performance. At the same time, the batching machine has a larger outline size in the working state so as to meet the requirement of the mobile concrete mixing plant on the preparation of concrete.

The invention relates to a carbon fiber oiling agent with a non-silicon oiling agent and a silicon-containing oiling agent compounded for use and a preparation method of the carbon fiber oiling agent. The carbon fiber oiling agent is obtained by compounding the non-silicon oiling agent and the silicon-containing oiling agent. The non-silicon oiling agent is prepared from, by mass, 100 parts of high heat-resisting compound A, 1-5 parts of antioxygen and 20-30 parts of surface active agent. The silicon-containing oiling agent is prepared from, by mass, 100 parts of side chain aminopropyl modified silicon oil, 3-10 parts of matter B and 20-30 parts of surface active agent. The carbon fiber oiling agent solves the problem of insufficient heat resistance of an existing oiling agent in the high-performance carbon fiber preparation process, and the non-silicon oiling agent and the silicon-containing oiling agent are matched for use, the preparation need of high-performance carbon fibers under different technological conditions can be met, so that the quality of the carbon fibers is improved.

The invention relates to a method for preparing a neodymium chloride hydrate through a programmed temperature increasing method. The method comprises: loading a granular crystal NdC13.6H2O into a dehydration reaction kettle, starting the dehydration reaction kettle to stir, introducing nitrogen being subjected to low temperature steam preheating, starting a vacuum pump, vacuumizing, setting a temperature increasing program to start heating when the vacuum degree achieves 50 kpa, and naturally cooling the kettle temperature to 50 DEG C to obtain the neodymium chloride hydrate product, wherein the temperature increasing program comprises that the heating is performed for 2 h at the heating rate of 0.625 DEG C / min within the temperature range from room temperature to 100 DEG C and the thermal insulation time is 3 h at a temperature of 100 DEG C, the heating is performed for 2 h at the heating rate of 0.167 DEG C / min within the temperature range of 100-120 DEG C and the thermal insulation time is 6 h at a temperature of 120 DEG C, the heating is performed for 2 h at the heating rate of 0.167 DEG C / min within the temperature range of 120-140 DEG C and the thermal insulation time is 4 h at a temperature of 140 DEG C, and the heating is performed for 2 h at the heating rate of 0.15 DEG C / min within the temperature range of 140-158 DEG C and the thermal insulation time is 10 h at a temperature of 158 DEG C.

The invention discloses a preparation method of a thin-walled tubular part with a revolution curved surface and aims at solving the problems that when a titanium alloy sheet tubular part is machined, machining and clamping are difficult to realize and the processing quality is difficult to guarantee; raw materials are low in utilization rate, long in processing period and high in cost; cold bending and forming difficultly meets the design requirement; and stamping and hot-bugling processing is rigorous in requirements on equipment and process, and is higher in cost. The invention provides a simple preparation method of the thin-walled tubular part with the revolution curved surface, in particular to a simple preparation method of a titanium alloy thin-walled tubular part with the revolution curved surface. According to the simple preparation method, the preparation demand of the titanium alloy thin-walled tubular part can be met. The method comprises the steps of preparing a fixed mold, cutting raw materials, as well as performing assembling and thermal treatment. The preparation method disclosed by the invention has the advantages of simplicity in operation, convenience in use, no need of expensive equipment, high utilization rate of the raw materials, short period, low production cost, high precision of products and better application prospect.