3results about How to "Solve segregation" patented technology

The invention discloses a (Ti, W) C-AlCrCoNiMo high-entropy metal ceramic material as well as a preparation method and application thereof, and belongs to the technical field of metal ceramic materials. The invention provides a metal ceramic material which is prepared by taking (Ti, W) C ceramic as a matrix, adding Al, Cr, Co, Ni and Mo as a high-entropy alloy binding phase, carrying out two-step wet-dry composite ball milling process treatment and carrying out spark plasma coupling high-frequency induction sintering. The problem of segregation can be solved after two-step wet-dry composite ball milling process treatment, ideal pre-alloyed powder is obtained, the components are more uniform, the dispersity is better, and the composite powder treated by an optimized ball milling method is sintered through spark plasma coupling high-frequency induction. And the high-entropy metal ceramic material with high bending strength, high hardness and excellent fracture toughness can be obtained at the sintering temperature of 1300 DEG C.

The present application belongs to the technical field of sintering mixed material batching, and relates to a method for reducing particle size segregation of mixed material in a multi-stage flat laying manner. According to the required batching ratio, each kind of material is divided into 3-4 stages according to particle size, the first stage is for the material with the largest particle size and the most segregation, the second stage is for the dust removal ash with fine particle size and large dust, and the third and fourth stages are for the material with uniform particle size. Before taking the material, the head and tail cutting operation is implemented, and the mixed material in this area is returned to the top of the new pile. The present application adopts the segmented flat laying manner, solves the particle size segregation, adds the dust removal ash in the second stage, and solves the problem of dust diffusion. Each bin can be used alternately, solving the problem of the number of bins. At the same time, small materials can be added in a certain stage, realizing the recycling of iron-containing resources.

The application discloses a copper alloy material with super-high strength and high conductivity and a preparation method thereof. The copper alloy material is composed of the following components in percentage by mass: Ni: 5-13 wt.%, Sn: 6-14 wt.%, Sn:(Ni+Sn)=40-70 wt.%, M: 0.01-0.5 wt.%, and the rest is Cu, wherein the M is at least one selected from In, Al, Cr, V, Mn and Fe. The preparation process comprises the following steps: performing multi-stage homogenization treatment on a columnar crystal ingot with the above components, obtaining a super-fine crystal structure by performing cycle 'processing-current treatment' on the homogenization-treated ingot, and performing processing-aging treatment. The copper alloy material provided by the application has super-high hardness, tensile strength and good conductivity.