Caizhuan technical material: Shanghai a product pigment (red, yellow plastic molds, blue) brightener plastic molds, cement, sand, gravel one. Red brick: a first hit the surface layer: the first 70 kg of coarse sand sieve, and then, and a generation (50 kg) black cement, stir, then add the red pigment 2.5--3 kg Stir, then add 2.5 kg of water brightener stir, can not remember the sand and paint together first China Plastic Mould Network, because eating sand pigment 2. first open platform vibration switch, mounted above the floor, usually a spoonful of mold, then shake plastic mold steel, stopping 15 general release in the summer minutes to start loading bottom material. winter is generally 25 minutes or so at the end of material loading. Remember the time to grasp, not too dry .3 main ingredients are expected at the end, cement, sand, gravel after stir into the mold box vibration .4 stripper stripping is best to use the summer it normally takes 2 - 3 days stripping, stripping two winters generally 5--7 days. Yellow Brick: the ratio of the same fabric and red brick. However, the surface layer must be of good quality white cement. Three. Green Brick: fabric must be of good quality white cement, brightener bigger proportion less. The proportion of green pigments also better than red, yellow brick slightly. Trench cover mold our lives in a very important position, try to imagine, if there is no trench cover mold, the world will become? Would not it be all the danger zone? Trench cover mold the entire mold making process selection is a very important aspect. Trench cover mold material selection needs to meet three principles :( a) satisfy a mold, wear 2. Strength and toughness 3. 4 fatigue fracture properties. 5 high-temperature performance. 6 resistance to thermal fatigue properties. Corrosion resistance and other work requirements; (b) satisfy a mold. 2 malleable. Annealing of three. Machinability 4. Oxidation, decarbonization sensitivity 5. Hardenability 6. Hardenability 7. 8 deformation hardening tendency to crack. Grinding and other processes may require; at the same time the mold should meet the economic suitability. Covers plastic mold, mold Guohui (certified), plastic mold mold by Baoding Guohui Machinery Co. Baoding Guohui Die Machinery Co., Ltd. (www.bdguohui.com) (www.bdguohui.com) Hebei Baoding, plastic building materials leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. Guohui mold in leadership with the staff warmly welcome all inquiries negotiations to create a better future Guohui mold.