A female internet celebrity with glasses and a guitar coverAmong the female internet celebrities who played the guitar and wore glasses was Chen Doudou, whose real name was Chen Xiaomin. She was a member of the female singing group KSGirls and an anchor on the live broadcast platform. The type of live broadcast was entertainment and she had more than seven million fans. She often held the guitar and sang by herself. Because of her clean and clear voice and unique works, she was accepted by the younger generation of audiences. In addition, there was a bespectacled girl who often appeared in the fast-handed videos of Handsome T. She was also good at playing the guitar.
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Design of the Lamp Reflecting Cover DieThere were many factors to consider when designing the mold for the car lamp. The first was the material. If a super hard material such as PVP was used (the shrinking rate was almost zero), there was no need to consider the shrinking rate when designing the mold, but the material had poor mobility.
From the appearance requirements and structural analysis of the plastic parts, if it is an appearance part and the surface needs to be plated (such as aluminum plating), the appearance requirements are extremely high, and there are no defects such as spots, gate marks, shrinking dents, heat lines, and flashing. At the same time, the design of the demoulding angle should be reasonable, generally at least 5°. If the shape of the plastic part is complex, the surface smoothness is high, and it is a left and right mirror image part, there is no need for a lateral core-pulling mechanism when there is no reverse on the inner and outer sides.
For the injection molding process of the PVP material, the chilled material was added to the special injection molding machine barrel, and the screw was rotated to generate the heat of melting at 25 degrees Celsius. Then, it was injected into the mold that was pre-heated to 140 - 160 degrees Celsius under high pressure. After chemical reaction at high temperature, it was solidified and formed. After the mold was opened, the plastic part was taken out and the air gun was used to blow away the rough edges and fragments in the cavity. The mold was closed for the next cycle.
In terms of mold structure, if the product is a mirror image, the number of cavities can be 1+1, and the pouring system can use a cold runner. If the inner and outer sides of the plastic parts are not inverted, there is no need for a side core-pulling mechanism. The mold was also a factor to consider, that is, if the protruding core (the working surface of the mirror) could not be equipped with a push-out device such as a push rod, it could be set in the fixed mold, and the concave cavity could be set in the moving mold. The mold needs to be heated by a heating tube and strictly controlled. The total power of the heating tube required for the fixed and moving mold can be calculated by the formula W = GCP(Tm-To)/3600yt.(W is the power, G is the total weight of the fixed and moving dies of the mold, CP is the specific heat capacity of the mold material, Ti is the temperature required for mold molding, To is the room temperature, y is the heater efficiency, t is the heating time). According to experience, the heating power of the mold can be calculated according to (40 - 50) W/kg. The distance between the molding surface and the electric heating tube is 40 - 50mm, and the distance between the two electric heating tubes is 80 - 100 mm. The four sides of the fixed and moving mold can be designed with 8mm thick Bakelite heat insulation boards. The electric heating pipes can be connected in series, but the temperature controller sockets cannot exceed 3.6KW per group. The temperature of each group of electric heating pipes should be controlled by a group of thermocouples. The thermocouples should be in the center of the temperature field and effectively contact the cavity.
In addition, in some special structural designs, such as the trouble of directly parting the mold, the inclined slide block is easy to fight, the position of the glue is difficult to determine (especially for transparent parts), and the product drop is too big, so it is necessary to consider whether the water is slanted or not. These problems need to be balanced in the mold design.
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Tell me the weeknd back story.Abel Tesfaye, known as The Weeknd, has a back story filled with hard work and a unique musical journey. He came from a relatively normal background in Toronto. In the early days, he was making music that was a departure from the typical mainstream sounds. His mixtapes were a blend of R&B, soul, and electronic elements. His image was also part of his allure, with his signature hairstyle and often mysterious public persona. He was able to build a huge fan base before getting major label support. His music videos, like those for 'Starboy', were also very creative and added to his overall brand. His story shows how an artist can rise from the underground music scene to global stardom through their talent and a distinct artistic vision.