The quality of plastic molds includes the following aspects:
(1) Product quality: the stability and conformity of the product scale, the smoothness of the surface of the product, the utilization rate of the product information, etc.;
(2) Service life: the number of work cycles or the number of parts produced by the mold under the premise of ensuring the quality of the product;
(3) Application and maintenance of the mold: whether it is the most convenient to use, the demoulding is simple, and the production time is as short as possible;
(4) Repairing the cost, repairing the periodicity, and so on.
The fundamental way to advance mold quality: mold planning is the most important step in the quality of the forward mold. Many factors need to be considered, including the selection of mold materials, the usability and safety of the mold structure, the machinability of mold parts and the mold. The convenience of repairing should be considered as much as possible at the beginning of planning. The manufacturing process of the mold is also an important part of ensuring the quality of the mold. The processing method and processing precision in the mold manufacturing process also affect the service life of the mold. The accuracy of each component directly affects the overall installation of the mold. In addition to the influence of the accuracy of the equipment itself, it is necessary to improve the machining accuracy of the mold parts by improving the machining method of the parts and the skill level of the fitter in the mold grinding process. Surface strengthening of the primary molded part of the mold to advance the surface wear resistance of the mold part, and then better advance the mold quality. The correct use and maintenance of the mold is also a major factor in the quality of the forward mold.
For example, the equipment debugging mode of the mold should be appropriate. In the case of warm flow channels, the power supply wiring should be correct, the cooling water circuit should be satisfactory to the planning requirements, and the parameters of the injection molding machine, die casting machine and press in the production of the mold should be consistent with the planning requirements. and many more. When the mold is used correctly, the mold needs to be maintained in a punctual manner. The guide post, guide sleeve and other parts with relative motion of the mold should be filled with lubricating oil frequently. For the molds such as forging die, plastic die and die-casting die, A lubricant or mold release agent should be applied to the surface of the formed part before each molding.
With the development of society, the quality of molds has been paid more and more attention. With the improvement of planning and manufacturing molds, the realization of new mold skills, mold quality has received more and more attention. Quality is a frequently-changed topic, and quality is moving along with the mold skills.