36results about How to "Play a strengthening effect" patented technology

The invention discloses an in-situ growth SiC nanowire modified SiC f The preparation method and application of SiC ceramic matrix composite materials, the preparation method is to place the graphite sheet containing metal coating and the carbon fiber preform together in a chemical vapor deposition furnace without contact, and deposit it on the carbon fiber preform by chemical vapor deposition In-situ growth of SiC nanowires on the pores and surfaces to obtain SiC fiber preforms with SiC nanowires, and then obtain SiC matrix by chemical vapor deposition, that is, SiC nanowires modified SiC f / SiC ceramic matrix composite material, the present invention introduces the metal catalyst indirectly, and the metal catalyst diffuses to the surface and internal pores of the SiC fiber preform in the gas phase, the catalyst distribution is more uniform, and the SiC nanowire density of the catalyzed growth is moderate. The resulting SiC nanowire-containing SiC f / SiC composite material, the maximum crushing load can reach 1175.0N, and SiC nanowire modified SiC in the prior art f Compared with the SiC ceramic matrix composite material, the obtained tubular SiC of the present invention f The crush performance of / SiC composite material is greatly improved.

The invention discloses an instant food containing five red foods and a preparation method, belongs to the technical field of agricultural product deep-processing. Small red beans, red dates without cores, peanuts with red skin, medlar and brown sugar are used as raw materials, wherein the instant food block dry product containing five red foods is obtained by soaking the small red beans, red dates without cores, peanuts with red skin and medlar, boiling, heat-preserving, adding brown sugar, boiling, cooling, applying on mode, quick freezing, and freezing drying in vacuum; and the technical advantage of the vacuum freeze drying technology for maintaining the effective ingredients such as nutrient ingredient, pharmacology effect and color, aroma and taste of each component is sufficiently utilized, each component can sufficiently play the self effect, the obtained product has the food therapeutic effect of tonifying Qi, cultivating blood, beautifying skin, delaying senility if being eaten often. The instant food block dry product containing five red foods produced by the invention is ruddy in color, convenient for carrying, rapid in rehydration, and ready to use by adding warm water or hot water; the color is ruddy and natural after rehydration, the aroma is strong, and the taste is sweet; and the instant food has excellent color, aroma and taste, and is convenient for eating and good in flavor.

A direct-boost double-fed switched reluctance generator converter system, which is composed of a battery, a main circuit, a charging and energy feeding circuit, a bidirectional isolator, and an output capacitor. The main circuit is composed of a phase circuit of each phase winding, and each phase circuit is mutually Parallel connection, the battery provides excitation, each phase circuit can realize the enhanced excitation effect of doubling the excitation voltage during excitation, and can directly realize that the voltage on the output side is significantly higher than the battery voltage on the input side, and at the same time solve the problem of output during the excitation phase of the switched reluctance generator. The problem that the continuous output current cannot be obtained on the side, and the battery participates in the output during the excitation phase, so that the power quality of the output side is higher; the charging and energy feeding circuit can automatically charge the battery in the forward direction, and can also reverse the battery power in extreme cases The output is to the load side, which improves the adaptability of the system; it is suitable for application in medium and high speed medium and small switched reluctance generator systems driven by various powers.

The invention discloses a high-strength and tough carbon nanotube-reinforced aluminum-based composite material with a non-uniform structure and a preparation method thereof, belonging to the technical field of composite material preparation. In the process of ball milling, pre-grind high-content carbon nanotube / aluminum composite material powder, then add low-content carbon nanotube / aluminum composite material powder for ball milling at regular intervals, and finally add aluminum alloy powder, thus in the cold Gradient change of carbon nanotube content formed in the micro-area of ​​composite material under welding action. In addition, due to the short ball milling time of the composite material powder added later, the degree of grain refinement is small, thereby forming a grain size gradient distribution of micro-domains. The powder is subjected to subsequent densification and secondary processing to obtain the final composite material, which exhibits much higher strength and toughness than the homogeneous structure composite material.