Most of the solid material are constructed from a variety of different shapes of the particles become, therefore, fine particulate material shape and size has an important impact on the structure and properties of the material. Especially for nanomaterials custom contact angle measurement, the particle size and shape on the properties of the material plays a decisive role. Therefore, nanomaterials particle size, shape, characterization and control of great significance. General solid material particle size can be used to describe the concept of particle size. However, due to the complexity of the shape of particles, generally difficult to directly use a scale to describe a particle size, and therefore, the particle size is widely used in the description of the process of the concept of equivalent particle size. For different principles of particle size analysis instrument, the measurement principle is based on the different characteristics of the particle is not the same, only the equivalent contrast touchscreen contact angle measurement, direct comparison can not be laterally. Such as sedimentation particle size analyzer is based on an equivalent particle settling velocity contrast, the measured vertical diameter equivalent diameter droplets settling velocity angle measurement made, namely by homogeneous spherical particles with the measured settling velocity of the particles with the same to represent the size of the actual diameter of the particles. Diameter of the laser particle size analyzer is the use of laser light diffraction and scattering characteristics as an equivalent contrast, the measured particle size of the equivalent scattering equivalent diameter, i.e., with the actual measured particles having the same effect of scattering spherical particles to represent the actual size of the particles. When the measured particles are spherical, the equivalent diameter is its actual diameter. Molding process is one of the most common plastic material, the oldest molding method, and a process for the most commonly used research material properties. It has a simple molding device, a small investment in equipment, simple mold structure and other characteristics, in mechanization and automation of production highly developed today, still one of the one of the most popular means of production. However, the contact angle, compression molding mold design can refer to the literature in addition to textbooks, monographs written several predecessors, mold design legend, few people die design summary of key skills. Buried discharge heat pipe, preferably the inner tube of the same media were filled with magnesium oxide powder, in order to reduce the heat load on the heating tube surface, this method can reduce the surface oxidation of the tube, effectively extending the life of the tube. Able to do so, the mounting holes are the best heating pipes poured into magnesium oxide powder. Insulation measures to strengthen the mold can reduce heat loss of the mold, the mold will reach a predetermined temperature in a short production time and reduce energy waste. Each engineering and technical personnel on this issue has a unique solution, I only talk about my experience. Touchscreen contact angle measurement | ShengDing instrument (certified) | contact angle provided by the Dongguan Sheng Ding Precision Instrument Company. Dongguan Sheng Ding Precision Instrument Co., Ltd. (www.dgshengding.com) is Dongguan, Guangdong, dedicated instrumentation leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Sheng Ding instrument in leadership with the staff warmly welcome all inquiries negotiations to create ShengDing instrument a better future.