66results about How to "Improve forming rate" patented technology

The invention relates to an electromagnetic microwave drying device for gypsum boards. The electromagnetic microwave drying device comprises a microwave heating box, wherein an air introduction pipe is arranged at the top of the microwave heating box. Microwave generators are arranged at the top ends of the microwave heating box, and water coolers are arranged at the tops of the microwave generators. The water coolers are communicated with a water pump. Conveying rollers are arranged in the microwave heating box and are in transmission connection with driven wheels and engaged wheels through chains. The driven wheels are in transmission connection with a motor. Temperature sensing probes are arranged on the microwave heating box. The microwave heating box can effectively ensure that microwaves move in the box, the boards can fully absorb microwaves and vapor is evaporated after heat absorption, and thus the purpose of drying the boards can be achieved; the microwaves emitted by the microwave generators can penetrate through the boards and be absorbed by the boards and move uniformly in the box, and the heated faces of the boards are uniform; the dried boards are tidy and free of expansion deformation, and the forming rate is greatly increased; no gas polluting the atmosphere is generated, and thus the electromagnetic microwave drying device is environmentally friendly, safe and low in energy consumption.

The invention provides a releasing agent used in a process of forming a magnetic material, which comprises the following components: 0.1-2 percent by weight of graphite powder, 0.1-5 percent by weight of fatty acid derivative, 0.1-2 percent by weight of paraffin, 0.1-0.5 percent by weight of sodium dodecyl benzene sulfonate, 0.1-2.5 percent by weight of glyceride and 88-99.5 percent by weight of gasoline mixture. The invention also discloses a preparation method of the releasing agent. According to the releasing agent provided by the invention, the problem of adhesion in the process of forming the magnetic material is solved, and the surface quality of a permanent magnet material casting is improved, especially the annular permanent magnet material product with large long diameter ration; and by using the releasing agent, the surface roughness of the permanent magnet material blank product is reduced, and the forming qualified rate of products is improved.

The invention provides a laser melting forming dust-removing system with multifunctional circulating air flow and a dust-removing method. The dust-removing system comprises an upper cavity and a lower cavity. Three induced air ways are led out of an air inlet of the upper cavity and are the first induced air way, the second induced air way and the third induced air way. The first induced air way communicates with a dust-removing subsystem in a scanning area. The second induced air way communicates with a dust-removing subsystem of a laser protection mirror. The third induced air way communicates with a dust-removing subsystem of a movement sliding table cavity. The laser melting forming dust-removing system with multifunctional circulating air flow and the dust-removing method have the beneficial effects that in the whole laser melting forming process, smoke-shaped dust generated when lasers act on metal powder can be absorbed into a dust filter in time under the effect of a draught fan, dust generated by part forming is filtered out in time through the dust filter, the influences, on the subsequent forming quality, of the smoke-shaped dust are prevented, and the forming rate is increased; and in addition, the dust is prevented from rising to the position near the laser protection mirror located over the scanning area, and the dust is prevented from entering a sliding table guide rail in the sliding table cavity.

The invention discloses an isothermal superplastic deformation method for a micro / nano particulate reinforced titanium matrix composite. The method comprises the following steps of A, preparing a titanium boride and rare earth oxide micro / nano particulate hybrid reinforced titanium matrix composite by utilizing an in-situ synthesis technique, and performing vacuum consumable electrode arc melting on the composite for more than two times; B, performing cogging forging on the composite in a Beta single-phase region, wherein deformation amount is greater than or equal to 50 %; performing isothermal forging on the composite in an (Alpha + Beta) two-phase region to obtain a titanium matrix composite forging blank, wherein deformation amount is greater than or equal to 60 %; and C, performing hot rolling on the titanium matrix composite forging blank in a near Beta phase region, wherein deformation amount is greater than or equal to 80 %, and performing annealing treatment to obtain the micro / nano particulate reinforced titanium matrix composite. The micro / nano particulate reinforced titanium matrix composite is formed by the isothermal forging technology and hot rolling, and thus, the matrix structure can be effectively refined, and the material forming rate is increased; and a plate has good superplasticity within the deformation process range of 800-1000 DEG C and 5 x 10<-3>-10<-4>s<-1>.