Analysis of mould manufacturing enterprise facing reality problem

Mould design and manufacture, design experience and skills to play a key role. Design reasonable or not, through the test to be sure; While the mold need through many times test and modify repeatedly, can complete finally. Production practice, some mould once put into production line after use, often can produce all sorts of problems, can meet the production requirements or technical requirements, product production line caused by abnormal shutdown, etc. , bring many unstable factors. So, how to improve the stability of the mould, mould manufacturing enterprise are the realistic problems. The stability of the mould and stamping and influencing factors of what is stability? Stability is divided into process stability and stability. Process stability refers to satisfy the production of qualified products with the stability of the process; Production stability is refers to the stability of the production process of production capacity. Because most of the domestic mold manufacturing enterprises, for small and medium enterprises and a considerable part of the enterprise, is still stay on the production management of traditional cottage stage, the stability of the mould is ignored, causing mold development cycle is long, the manufacturing cost is high, seriously restricted the development of enterprise. First let's take a look at the main factors which influence the stability of mould and stamping, respectively: the use of the mold material; The strength of the mold structure requirements; The stability of the stamping material performance; Material thickness fluctuation characteristic; The change of the material; Tensile steel resistance; Blank-holder force range; The choice of lubricant. Weighing the various factors influencing the stability of it is worth noting that in the process of stamping, because each kind of pressing plate has its own chemical composition, mechanical properties and is closely related to the stamping performance characteristic value, stamping material performance is not stable, punching material thickness fluctuation, and the change of the stamping material, not only directly affects the precision of the stamping process and quality, and also may cause the damage of the mould. In the case of tensile reinforcement, its in stamping will occupy a very important position. In stretch forming process, products, need to have a certain size, shape and along the fixed around the appropriate distribution of tension, the pulling force from stamping device, edge part material deformation resistance, and flow resistance on the surface of the blank holder ring. And the generation of flow resistance, if only depend on the effect of blank holder force, the friction between mold and material is not enough. To this end, still must set on blank holder ring can produce larger resistance tensile reinforcement, to increase the feeding resistance, so that the material produces large plastic deformation, to meet the requirements of material of the plastic deformation and plastic flow. At the same time, by changing the size and distribution of the tensile reinforcement resistance control and material to the mold flow speed and feed rate, realize the tensile strain in the deformation area and its distribution of effective adjustment, thus preventing stretch forming product rupture, wrinkling, and deformation and other quality problems. By visible, in the process of stamping process and die design, the size of the stretching resistance must be considered, according to the range of blank-holder force will decorate tensile reinforcement and determine the form of tensile reinforcement, make each region according to the need of complete forming deformation mode and deformation extent.





decomposition of changshu mould company production process principle of aluminum alloy die casting in


as the aluminum alloy die casting technology is more and more mature, significantly enhance technology, more and more buyers tend to find can provide mould production after processing integrated production accessories products. As plastic mold large factory in changshu, changshu mould today with everyone share once production of aluminum alloy die casting has adopted what process principle, available for a preliminary judgment. Aluminum alloy die casting technology is the die casting machine, die mold and alloy elements organically combined and the synthetical use of
process. And die casting metal according to the process of filling cavity, is the technological parameters such as pressure, velocity, temperature and time and get a unified process. The mould structure design, heat treatment, mold manufacturing and mold assembly effect on the service life of aluminum alloy die-casting mould. Principle of mutual benefit in the production of die casting technology is the use of high pressure liquid metal into a high-speed precision metal mold cavity, metal castings, formed by the cooling and solidification under pressure. Cold and hot chamber die-casting is two basic way of die casting technology. Cold chamber die casting of liquid metal by manual or automatic pouring device poured into indoor, pressure injection punch heads made of then move forward, the liquid metal into the cavity. In the hot chamber die casting process, the pressure chamber is perpendicular to the crucible, liquid metal flows automatically by the pressure on the chamber inlet pressure chamber. Injection punch downward movement, push through gooseneck into the liquid metal cavity. Liquid metal solidification, die casting mould open, take out the casting, complete a die casting cycle.