7 results about "Machinability" patented technology

The invention discloses a shoulder wedge composite material and a manufacturing method thereof. The shoulder wedge composite material consists of the following raw materials in part by weight: 100 parts of natural rubber, 10 to 50 parts of carbon series nano thermal conducting filler, 10 to 35 parts of coarse particle size carbon black, 2 to 6 parts of octyl phenolic resin, 2 to 4 parts of surfactant, 1 to 8 parts of silane coupling agent, 1.5 to 9 parts of vulcanizing agent and the balance of other common aids. The preparation method comprises the following steps of: plasticating the rubber in an internal mixer, adding the coarse particle size carbon black, the carbon series nano thermal conducting filler, the octyl phenolic resin, the surfactant and the other aids into the internal mixer, mixing and controlling the temperature to be between 80 and 120 DEG C; adding the silane coupling agent into the mixture, controlling the temperature to be between 120 and 160 DEG C, and discharging the sizing material; adding a master batch and the vulcanizing agent into the internal mixer and discharging products until the temperature is 80 to 120 DEG C, wherein if the other aids contain scorch retarder, the scorch retarder and the vulcanizing agent are added together. The shoulder wedge composite material provided by the invention meets the requirements of mechanical properties, and is low in themogenesis, high in thermal conductivity, and excellent in machinability.

The invention provides a 550MPa-grade steel plate and a manufacturing method of the 550MPa-grade steel plate. The 550MPa-grade steel plate is prepared from the chemical components of, by mass, 0.08 to0.1 percent of C, 0.25 to 0.35 percent of Si, 1.78 to 1.88 percent of Mn, 0 to 0.015 percent of P, 0 to 0.005 percent of S, 0.017 to 0.027 percent of Als, 0.23 to 0.33 percent of Cr, 0.05 to 0.07 percent of V, 0.05 to 0.06 percent of Nb, 0.001 to 0.0025 percent of Ca, 0.01 to 0.02 percent of Ti, and the balance iron and inevitable impurities. Through the technical scheme provided by the invention, the 550MPa-grade steel plate is added with a small number of valuable alloy elements such as Nb, V and Ti, so that the production cost is low, and the machinability is favorable.

The invention discloses a PVC (polyvinyl chloride) decoration plate prepared from acidification modified white ash and belongs to the field of PVC materials. The plate comprises the following ingredients in parts by weight: 100 parts of PVC, 40-70 parts of acidification modified white ash compound lead salt, 5-10 parts of acidification modified white ash compound basic lead phosphite, 5-8 parts ofMBS (methyl methacrylate-butadiene-styrene), 4-6 parts of CPE (chlorinated polyethylene), 4-6 parts of ACR (acrylate), 1-4 parts of paraffin and 2-3 parts of barium stearate. The acidification modified white ash compound lead salt and acidification modified white ash compound basic lead phosphite substitute tribasic lead sulfate and dibasic lead phosphite for manufacturing the PVC decoration plate; comprehensive utilization of a white ash slag resource is achieved; and the plate has a high economic value added, is clean, environment-friendly and good in product performance, exceeds technicalindex requirements of the like products, is better in extrusion and lamination performance, machinability and stability and has a wide application value in an aspect of interior decoration.