6results about How to "Improve surface brightness" patented technology

The invention relates to the technical field of grinding tools, in particular to a preparation process of a grinding oilstone, silicon nitride and diamond are adopted as raw materials to prepare the grinding oilstone, the silicon nitride has high hardness, high wear resistance and good chemical stability, and the diamond as the hardest substance in the nature has extremely high cutting capacity and wear resistance; silicon nitride and diamond are effectively combined to prepare the composite grinding oilstone, the grinding efficiency of the oilstone can be remarkably improved, the service life of the oilstone can be remarkably prolonged, and compared with an existing mode, the performance during use is improved; meanwhile, by adopting one or at least two of an oil-based binder, a wax-based binder, an oil-wax-based binder and a polyaldehyde binder as the binder, the surface brightness, smoothness, strength and abrasion resistance of the grinding oilstone can be improved, and the problems that in the prior art, the grinding oilstone is poor in performance in actual use, and the grinding oilstone is prone to being damaged are solved in this way. And the surface brightness and smoothness of the oilstone are poor.

The invention provides an aluminum alloy wire and a preparation method thereof. The aluminum alloy wire comprises the following elements in percentage by mass: 0.1 to 7.0 percent of Zn element, 0.2 to 9.6 percent of Mg element, 0.1 to 6.0 percent of Cu element, 0.01 to 1.2 percent of Mn element, 0.1 to 2.0 percent of Fe element, 0.1 to 2.5 percent of Si element, less than or equal to 0.15 percent of inevitable impurities and the balance of Al element, the surface brightness L of the aluminum alloy wire is greater than 60, and the surface brightness color difference E is less than or equal to 0.5; the average roughness Sa is less than or equal to 0.4 mu m, and the maximum peak height Sp is less than or equal to 2.0 mu m; the aluminum alloy wire does not crack after 85% compression deformation; under the test conditions that the temperature is 35 DEG C, and the aluminum alloy wire is placed in a mixed solution of a 57g / L NaCl solution and a 10mL / L H2O2 solution to be soaked for 6 hours, the corrosion depth of the aluminum alloy wire is smaller than or equal to 10 micrometers.

The invention relates to a high-strength low-warpage 3D printing nylon modified material and a preparation method thereof, the high-strength low-warpage 3D printing nylon modified material comprises the following raw materials by weight: 64-87 parts of nylon resin, 1-2 parts of a crystallization accelerator, 1-2 parts of a maleic anhydride grafted flexibilizer, 1-2 parts of a benzene ring-containing hyperbranched polymer, 5-15 parts of modified silicon carbide whisker, 5-15 parts of modified carbon fiber, and 0.2-0.5 part of a lubrication dispersant TAF. Wherein the modified silicon carbide whisker is obtained by coating the surface of a silicon carbide whisker with a layer of conductive polymer and then performing electrochemical treatment; the modified carbon fiber is obtained by coating a layer of layered dihydroxy compound on the surface of carbon fiber and introducing a functional substance between the dihydroxy compound layers through ion exchange. According to the 3D printing nylon modified material disclosed by the invention, the modified silicon carbide whiskers and the modified carbon fibers are added, so that the tensile strength and the bending strength of the material are improved, and the deformation and warping of the material are reduced.

The invention provides superfine ground calcium carbonate for a PVC (polyvinyl chloride) cable as well as a preparation method and application thereof, and belongs to the technical field of mineral fillers. The preparation method comprises the following steps: sequentially carrying out primary crushing and secondary crushing on calcite raw ore, carrying out ring roller grinding and primary grading on the obtained crushed material, carrying out ball milling on the obtained ground calcium carbonate powder, a grinding aid, a silane coupling agent and stearic acid, and carrying out secondary grading to obtain the superfine ground calcium carbonate for the PVC cable. The obtained superfine heavy calcium carbonate is small in fineness, high in oil absorption value, high in activation degree and good in processing fluidity and dispersity in the PVC cable preparation process, and the mechanical property and the surface brightness of the prepared PVC cable are improved.

The utility model discloses a novel MCD spiral milling cutter belongs to cutter technical field, including the cutter bar and the MCD spiral tool bit of lower end, the outer diameter of spiral tool bit is not greater than the outer diameter of cutter bar, the end of spiral tool bit is radially equipped with n end edges, and the outer circular surface of spiral tool head is equipped with n spiral edges, and the spiral chip groove is formed between two adjacent spiral edges, n spiral edges all are equipped with the staggered blade surface, and the staggered blade surface on two adjacent spiral edges is axially staggered arrangement. The utility model discloses a spiral tool bit of welding fixed MCD material is arranged at the lower end of cutter bar, utilizes the multiple end edges of spiral tool head end and the multiple spiral edges of all around and processes the product, can improve product surface brightness, improves processing efficiency simultaneously, prolongs the service life of cutter, improves the performance of chip removal with the spiral chip groove of all around, utilizes the staggered blade surface on spiral edge can make spiral edge staggered arrangement, can make the surface of processing no knife line, further improves product processing surface quality.

The invention discloses an environment-friendly high-performance titanium alloy polishing composition as well as a preparation method and application thereof, and relates to the technical field of metal material surface treatment. According to the environment-friendly high-performance titanium alloy polishing composition, the pH value of a basic system is adjusted to 9.5-10.0 through a pH adjusting agent; the base system comprises the following components in percentage by mass: 10-30% of silica sol, 3-4% of an anti-gel stabilizer (urea or methylurea), 2-3% of a heat transfer improvement and surface defect inhibitor (ethylene glycol or propylene glycol), 0.1-0.2% of a wetting leveling agent, 1-2% of an alcohol amine complexing agent and 0.5-1% of an aminopolycarboxylic acid chelating agent besides water. According to the environment-friendly high-performance titanium alloy polishing composition, on the premise that an oxidizing agent is completely abandoned, perfect balance of high stability, high polishing rate and excellent surface quality is achieved through unique formula design, and the environment-friendly high-performance titanium alloy polishing composition has the advantages of being environmentally friendly and high in safety.