6 results about "Wet grinding" patented technology

The invention relates to a foamed heat insulation material and a preparation method thereof. The heat insulation material is prepared from the following raw materials: 30-50 parts of high-alumina fly ash, 50-70 parts of waste glass powder, 10-30 parts of a fluxing agent and 0.5-1.5 parts of a foaming agent. The preparation method comprises the following steps: 1) mixing the high-alumina fly ash, waste glass powder, fluxing agent and foaming agent, adding water, carrying out wet grinding and mixing, so that slurry is obtained; 2) drying the slurry to obtain mixed powder, granulating the mixed powder, and carrying out dry pressing, so that a green body is obtained; and 3) carrying out high temperature sintering on the green body, so that the foamed heat insulation material is obtained. The heat preservation material provided by the invention has the advantages that the raw materials are selected from industrial waste, cost is low, the whole preparation process is simple in working procedure, and equipment requirement is low, so that popularization is easy.

The invention relates to the technical field of steel slag utilization, in particular to a treatment method for gradient utilization of steel slag, and solves the problems of low metal recovery rate, unsatisfactory crushing effect, high energy consumption, short service life of wear-resistant devices and incapability of realizing 'more crushing and less grinding' of a steel slag treatment system due to the fact that steel slag is generally treated by hot braising, cooling and decomposing and then waste steel and magnetically separated powder with large particle sizes are selected in the prior art. The steel slag is treated through the processes of crushing, magnetic separation, screening, wet grinding and the like to obtain fine iron particles, fine iron powder, tailings, tail mud and other products, and the fine iron particles and the fine iron powder can be directly sold out. The secondary crushing process is designed to fully crush the steel slag, thereby reducing the average particle size of the steel slag, reducing the loss of wear-resistant devices of a ball mill, fully realizing 'more crushing and less grinding' and reducing the energy consumption; Multiple magnetic separation processes are matched with one another to improve the recovery rate of metal resources, and the existing problems of low grinding efficiency and high cost of steel slag are solved.

The invention discloses a stabilizer for a PCB and a preparation method of the stabilizer. According to the invention, calcium-zinc salt is used as a matrix of the stabilizer, and soybean oil, activecalcium, an antioxidant, Q40 and YL-100 are added to modify the matrix, so the demolding and smoothness of the stabilizer matrix are improved; meanwhile, in order to improve the performance uniformityand stability of the prepared stabilizer, an adhesive and modified calcium-zinc stabilizer are added; on one hand, smooth demolding of the PCB matrix in the preparation process is achieved through the proportioning of all the components, and on the other hand, the stability of the stabilizer is improved through coordination and cooperation of the components. In the preparation process, conventional wet grinding is firstly adopted for preparation; but different from the prior art, after liquid is completely evaporated, constant-temperature standing is adopted for aging treatment on the stabilizer, and the aging treatment is mainly used for improving the mechanical properties of the stabilizer, so when the stabilizer is used, the mechanical properties of the matrix is improved.