The molding and processing methods of plastic products for home appliances mainly include injection molding, extrusion molding, thermoforming, hollow molding, lamination molding, compression molding, transfer molding, foam plastic molding, casting molding, insert casting, sealing casting, etc., among which Mainly injection molding. In recent years, some new plastic processing technologies and new equipment have been widely used in the molding of home appliance plastic basin products, such as precision injection molding, rapid prototyping technology, melt core injection technology, gas assisted / water assisted injection molding technology, electromagnetic dynamic injection molding technology and coating Film injection molding technology. Precision injection Can guarantee the product in terms of size and weight with high precision and high repeatability. The injection molding machine using this technology can achieve high pressure and high speed injection. Because its co...
Relevant experts from the Provincial Academy of Environmental Sciences said that there are two main hazards of white pollution: visual pollution and potential hazards. Visual pollution refers to the scattering of plastic bags, boxes, cups, bowls, etc. in the environment, which brings bad stimulation to people's vision and affects the overall beauty of the city, especially the scenic tourist area. The potential hazards are multifaceted. For example, in use, if the temperature reaches 65 ° C, harmful substances in disposable foamed plastic tableware will penetrate into the food, causing damage to the human liver, kidneys and central nervous system. Discarded plastic products can deteriorate the soil environment and seriously affect crop growth. According to reports, the degradation time of plastic products currently used in China requires at least 200 years. If the waste agricultural film and plastic bags in the farmland remain in the soil for a long time, it will affect the absorp...