Develop the right casting process

Casting process is a manifestation of die-casting factory technical level , he can die casting machine characteristics , mold characteristics , casting characteristics , production factors such as die-casting alloy correctly combine the lowest cost , the production of casting products to meet customer requirements . Therefore, we must pay attention casting process selection and training of engineers . Die Casting Die Casting Process Engineer is responsible for the total production site Custom injection moulding technical person , in addition to develop the right casting process , based on the factors of production changes promptly amend casting process , also responsible for the installation and adjustment work mold , die casting operatives, mold maintenance worker training and awareness .
⑴, determine the most reasonable productivity, every predetermined cycle time ofthe injection cycle . Low productivity is certainly not conducive to improving economic efficiency, high productivity, often at the expense of die life and casting a pass rate of the cost of reckoning Xi Zhang economic benefits may be even worse .⑵, determine the correct casting parameters. In casting meet customer quality standards to ensure the premise should make the injection speed , injection pressure , the lowest temperature of the alloy . This will help reduce machine , mold load , reduce failures, and increased life expectancy . According to the characteristics of die casting machine , mold characteristics , casting characteristics , die-cast Custom plastic moldaluminum features an isosceles triangle to determine the fast injection speed , injection pressure , boost pressure , slow injection stroke , rapid injection stroke , punch with the distance , launch stroke , dwell time , push the reset time , the alloy temperature, mold temperature.⑶, use water-based paint , must develop a strict detailed spraying . Paint brands , the proportion of paint and water , sprayed every part of the amount of mold ( or spraying time ) and spraying sequence , air pressure from the gun and the molding surface of the molding surface spraying direction angle .
⑷, according to the actual die casting mold cooling determine the correct solution . Right mold cooling solutions on production efficiency , quality of castings , die life have a great impact . Opening the program should provide for a method of cooling water , die casting mold several times began to cool , separated by a few minutes several times a mold cooling water valve opening to a predetermined opening . Cooling intensity point of the cooling system should be adjusted on-site casting process engineer , with mold spray reaches thermalequilibrium .⑸, provides for different slide moving parts, such as punch, guide post , guide sleeve, pulling mechanism , putter, reset lever and other parts of the different lubrication frequency.⑹, formulate rules for each die casting die casting , die casting and training and supervising workers accordance with procedures .⑺, according to the complexity and newness dies , molds to determine the appropriate preventive maintenance cycle. Appropriate mold mold preventive maintenance cycle should be using will be faulty and not faulty die casting times. Mold has failed in use , can not continue to produce , was forced to repair , not being advocated methods.⑻, according to the complexity of the mold , recency and stick mold degree of risk , determine the module to eliminate the stress cycle ( typically 5000-15000 die times once ) and the need for surface processing . Such as nitriding, nitriding depth . 0.33 , max 0.55 .