Molten gold machine large casting defect serious segregation and inclusions.Because of improper design, there is gas, inclusions and other defects, leading to the casting yield and low qualification rate. Machining allowance, casting the energy and raw material consumption is serious, long processing cycle, low production efficiency,has become the restriction
Bottleneck of the development of the industry. 4 common casting production capacity surplus, manufacture of high precision casting is still difficult, the core technology andkey products still rely on an entrance. The last century 80’s, the government carried out specialized adjustment on the small scale, low level of technology, pollution isserious business, you hit machine
Improve enterprise degree of intensification, but the extensive features of forgingproduction has not been fundamentally changed.
Energy consumption of jewelry equipment precision forging industry machineryindustry accounted for 25% of total energy - 30% uniform, energy utilization rate of 17%, energy consumption is about 2 times the forging of developed countries. Large steel castings and ingot in solidification after the end, in the riser, jewelry equipmentcastings with thick section
In the macro segregation, coarse grain. At present, the situation is better, jewelry toolsbut in the purchase of forging simulation software in the enterprise, can play its role israre, the urgent need for software application training to employees.
Carving wax forging production of pig iron, scrap steel, the burden is mainly coke,limestone, sand, sand core. In our country every production energy consumption of 1 tons of qualified castings is 550 - 700 kg standard coal, 300 - 400 kg scale of foreigncoal, our country every production energy consumption of 1 tons of qualified castings
800 - 1000 kg standard coal, 500 - 800 kg scale foreign coal. Is the original sand,clay, coal powder, resin as binder, curing agent, the old sand transport, sand,molding, core making, melting, pouring, baking, cooling, falling sand, cleaning andpost-treatment processes,
In terms of the homework is in mechanical vibration and noise, homework and some are still high temperature melting, pouring, aureate water some irritating smell, dustwork environment is bad. According to statistics, materials and energy castingsproduced in the process of input - output value accounts for about 70% of 55%
.
Because of the lack of guidance of scientific design, process design staff with experience is difficult to control the deformation, machining allowance wax injectionmachine forging general than foreign big 1 - 3 times. Simulation software is not widely used. China casting weight than the foreign average of more than 10% - 20%, steel casting process yield
An average of 55%, the foreign can reach 70%. The gating system design is not reasonable. The simulation started earlier in China forging industry computer, steam cleaning machine is the core computing department development ability, but the overall software package ability is poor, joint lead to trade software developmentmaturity far behind
In developed countries, a considerable part of the computer simulation technology offorging enterprises daunting, a lack of trust. Magnetic polishing machine forgingprocess simulation is a necessary link, castings produced in foreign countries, if notthe computer simulation technology, not to take orders.
In China, except for a few large enterprises such as FAW, the steam, big weight,Shenyang Liming company production equipment, precision forging technologyadvanced, environmental protection measures in place, the majority of forgingfactories produce obsolete equipment, backward technology, general rarely take into account the environmental issues.
Ultrasonic cleaning machine precision forging machining allowance. The severity of these shows that our precision forging industry environmental issues, green forging is the hub of the current problems need to be solved by using high technology. Chinaforging industry environmental problems but also in excess of natural resources
Consumption.