Ito Ink recently successfully launched a new printing process that successfully solved the problem that the wheel label is not resistant to high temperatures. Interested parties please contact Ito Ink Coating Chemical Technology Co., Ltd. Unique printing technology, high temperature resistant ink, can be baked through 250 degrees 24 hours, the color does not change. Grinding wheel mesh: Material: reinforced glass fiber wheel mesh technology: The product is coated with phenolic resin with glass fiber mesh, and dried by die-cutting. Product classification: one is pure mesh and the other is non-woven. A cloth composite mesh and a black paper composite mesh are widely used as reinforcing substrates for resin bonding wheels. The grinding wheel made of the substrate has excellent weather resistance. 2, phenolic resin characteristics: at a temperature of about 1000 degrees Celsius, phenolic resin will produce high residual carbon, phenolic resin composite materials, especially in the aerospace industry (space vehicles, rockets, missiles, etc.) as transient high temperature and ablation Structural materials have very important uses. 3, enhanced glass fiber characteristics 1) glass fiber melting point is above 1000 ° C, no impact on 160 ° C hot asphalt pavement 2) 70193900 enhanced grinding wheel glass fiber mesh, mesh mesh is flawless, paper æ»A woven fabric made of glass fiber yarn. The mesh sheet is a mesh-shaped solid sheet which is punched and cut into a substrate by a resin. Mesh: width 115cm, thickness 0.44 ~ 0.68mm, mesh: round, outer diameter ∮ 70 ~ 800mm, inner diameter ∮ 10 ~ 60mm, resin content 26 ~ 34%. 4. Grinding wheel manufacturing process The resin grinding wheel curing process is as follows: The curing operation can be carried out in a fixed curing oven or in a flowing tunnel type curing kiln. Curing with a curing oven, the position of the grinding wheel is particularly important. Generally, the grinding wheel is fixed with a steel or ceramic disc to ensure that the grinding wheel does not deform during the curing process, and is evenly placed in the furnace. The furnace must have air circulation to make Each part is heated evenly, and then the heating process is started to cure; the tunnel type curing kiln is used for curing. The grinding wheel is fixed with a steel or ceramic disc, then placed in the trolley, pushed into the tunnel, and operated at the set speed. Generally, the initial temperature is 60-80 ° C, the final temperature is 160-190 ° C, the entire curing process takes 20-25 hours, and finally the temperature is lowered to 40-60 ° C. After opening the furnace door, the grinding wheel can be taken out. Physical and chemical changes occur throughout the heating process, and the following reactions occur mainly at various temperature stages: at 80 ° C, the resin begins to melt, water is distilled off, and the curing reaction begins; six times decomposition at 110 ° C causes cross-linking of the molten resin At the same time, ammonia, water and other gases are released; 110-180 ° C resin is cross-linked until it is completely cured, and a large amount of ammonia is released. If the high temperature zone is too long, the resin will be over-cured. When the hardness of the grinding wheel increases, the strength of the grinding wheel will decrease. Generally, different curing curves and curing temperature are selected according to the different requirements of the grinding wheel. The final temperature is 165-170 ° C, the grinding wheel is hard and tough; the final temperature is 175-180 ° C, the grinding wheel is hard; the final temperature is 185-190 ° C, the grinding wheel is hard and brittle.
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