Treatment method of mould scale of plastic products in Jiangmen project
It is necessary to strengthen the maintenance of the mould when we can't eliminate the mould scale by various methods.
Mold scale on the surface of the mold is relatively simple to remove at the initial stage, so it is necessary to clean and maintain the mold cavity and exhaust channel on time (for example, after each batch of molding production). If the mould is not maintained for a long time, it is not simple and time-consuming to remove the mould scale after forming a thicker layer.
Injection mold maintenance and maintenance of the spray used are mainly: mold release agent, rust inhibitor, thimble oil, gel remover, mold cleaning agent, etc.
The chemical composition of mold scale is very complex, so it is necessary to use and check new methods to eliminate the scale, such as general solvents and various special solvents, oven spray, lemonade containing caffeine, etc. There are special rubber track cleaning methods used together.
When hot runner molding and thermal activation data are used, the residence time of melt will be longer, which will increase the risk of data differentiation and forming mold scale. The screw of injection molding machine is sorted.
The standard large runner and gate should be used when forming the data of active shear force. The multi-point gate can reduce the moving distance, lower the injection speed and reduce the risk of mold scale.
Efficient mold exhaust can reduce the possibility of mold fouling, and appropriate mold exhaust should be set in the mold design stage. The improvement of exhaust system often leads to the reduction of mold scale.
The special non stick coating on the surface of mould cavity can prevent the formation of mould scale, so the effect of coating should be checked and evaluated. Titanium nitride treatment on the inner surface of the mould can prevent the formation of mold scale on the mold.
Source: Jiangmen engineering plastics http://m.nbs666.com/
-
09-14
What kinds of Jiangmen engineering plastics have good thermal conductivity
What engineering plastics have good thermal conductivity? Most of the traditional thermal conductive plastics are thermal insulation materials. The thermal conductive plastics developed by Zhaoke company bring new key to this field. The commercial application of thermal conductive plastics began in 1998, and more than one million pieces have been made. The products have been successfully applied in various fields, such as consumer electronics, power electronics, cars, motorcycles, lighting, medi
-
09-14
What are the application fields of Jiangmen engineering plastics
Five major application fields: 1. Film materials: various kinds of food, medicine, non-toxic and aseptic packaging materials; packaging materials of textiles, instruments and electrical components; base materials of audio tapes, video tapes, film films, computer floppy disks, metal coated films and photosensitive films; 2; Electrical insulation materials, capacitor films, flexible printed circuit boards and membrane switches and other electronic and mechanical fields. 2. The application of packa
-
09-14
What are the thermal functions of Jiangmen engineering plastics
Engineering plastics have been widely used in our daily life as engineering materials and substitutes for metal manufacturing machine parts. In the selection of engineering plastics, the data engineer should consider not only the mechanical function and aging resistance function of the data, but also its thermal function. There are many tests on thermal function of engineering plastics. What do we need to know? 1. The continuous working temperature indicates the heat resistance of plastic moldin
-
09-14
What are the types of Jiangmen engineering plastics
Engineering plastics have the characteristics of high rigidity, small creep, high mechanical strength, good heat resistance and good electrical insulation, which make it can be used in harsh chemical and physical environment for a long time, and can replace metal as engineering structural materials. With the development of technology, the application of engineering plastics has been extended to cars, home appliances, aviation, sports, electronics, construction and other fields. PA is a kind of e