Carbide drawing die polishing Which is better? Jinan zirconium through high-precision, superb professional team advanced equipment technology, superb technology, Jinan zirconium-trade Ltd provide you with quality carbide drawing die polishing technology, professional processing, quality trust. Die polishing is generally used stone, sandpaper, polishing paste, wool round of the mold cavity surface was polished, work surface of the mold can be bright as a mirror of the process, called Die grinders. Die polishing generally the first to use crude stone mold cavity surface machining coarse grinding, grinding to machining tool marks, then use fine sanding to rough Whetstone Whetstone grinding marks, and then use fine sandpaper whetstone for fine grinding polished surface, and finally a polishing paste or grinding paste on the surface of the mold cavity of the final fine polishing, so as to achieve bright as a mirror. This is generally the whole process of mold polishing. Of course, if possible, you can use ultrasonic polishing machine for polishing the mold, so that a higher efficiency. People are more powerful province. To obtain high-quality polished effect, the most important thing is to have high-quality of the stone, sandpaper and diamond polishing paste polishing tools and aids. Polishing procedures selected depend on the surface condition after the pre-processing, such as machining, electrical discharge machining, grinding and so on. General mechanical polishing process as follows: ① rough polishing: The surface craft after milling, EDM, grinding, etc., may choose the speed at 35 000-40 000 rpm rotary surface polishing machine or ultrasonic grinding machine for polishing. Commonly used methods use a diameter Φ3mm, WA # 400 of wheels removed layer of white sparks. Then hand Whetstone grinding, strip Whetstone add kerosene as a lubricant or coolant. The general order of use of # 180 to # 240 to # 320 to # 400 to # 600 to # 800 to # 1000. Whetstone polishing method, the most important job is the job difficult, depending on the specifications of the processed, of approximately 70 degrees angle balanced cross lapping. And from the best range of about 40 mm to 70 mm. Whetstone jobs will vary according to the material processed. Many mold manufacturers in order to save time and choose from # 400 begins. ② semi-fine polishing: Semi-fine polishing mainly used sandpaper and kerosene. After Whetstone sandpaper job is a job, when the job sandpaper, pay attention to mold core of rounded edges, rounded corners and orange peel produce. So try to make it the finest Whetstone flow processing. Sandpaper polishing focus. Sandpaper stick with the hard work like stone, like about 70 degrees to cross grinding, polishing sandpaper side about 10 times to 15 times. If the grinding time is too long, grinding force sandpaper will reduce, which would lead to the machined surface uneven phenomenon (which is also one of the causes of cellulite). When jobs are generally used sandpaper polished bamboo, low-stretch material actually used a small stick or rod hardness of about 45 degrees is the most ideal grinding. Polished surface can not use rubber or elastomeric materials with high, can not form a 45 degree angle grinding can be an acute angle. Number of sandpaper were: # 220 - # 320 - # 400 - # 600 - # 800 to # 1000 to # 1200 to # 1500. # 1500 sandpaper actually only suitable for hardened tool steel (52HRC above), does not apply to pre-hardened steel, as this may result in pre-hardened steel surface burns. ③ fine polishing: fine polishing diamond polishing paste is mainly used. If mixing diamond abrasive powder or polishing paste grinding wheel with a polishing cloth, then the usual grinding order is 9μm (# 1800) ~ 6μm (# 3000) ~ 3μm (# 8000). 9μm diamond polishing paste and polishing cloth wheel can be used to remove the # 1200 and # 1500 grit grinding marks left by hairy. Followed by sticky carpets and diamond polishing paste for polishing, the order of 1μm (# 14000) ~ 1 / 2μm (# 60000) ~ 1 / 4μm (# 100000). Accuracy in 1μm or more (including 1μm) polishing process in mold polishing workshop in a clean-room can be carried out. If a more precise polishing is absolutely necessary for a clean space. Dust, smoke, dandruff and saliva foam are likely to be scrapped after a few hours of work to get the high-precision polishing surface. Learn more about Jinan polished carbide, carbide drawing die polishing, polishing carbide information, please visit www.jngaotong.com