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本项工作的主要目的是利用流线型浇注系统的原理减小浇注系统的质量,提高出品率,从而减少对铁液的需求量,降低熔炼能量消耗。实际铸造生产线上的试验证明,应用流线型浇注系统能减少浇注系统的质量。把垂直分型,每箱3个阀体铸件的浇注系统由传统布置改为流线型布置,浇注系统的质量减少了1.1 kg,即减少了20%。在本项试验中,浇注系统由传统的转变为流线型后同时消除了铸件对热处理的需求,这在铸造车间是巨大的能量节约。此外,流线型浇注系统的球铁阀体铸件浇注试验证明,浇注温度从1 400℃降低到1 300℃,铸件未出现冷隔的危险。这可能是因为流线型浇注系统充型速度快以及扇形内浇道有减速作用。本项目还通过玻璃板前铸型试验对上述问题进行了研究。
The main purpose of this work is to use the principle of streamlined pouring system to reduce the quality of pouring system and improve the production rate, thus reducing the demand for molten iron and reducing the energy consumption of melting. Experiments on actual foundry production lines have demonstrated that the use of streamline casting systems can reduce the quality of the casting system. The vertical type, the casting system of castings of three valves per box was changed from the traditional arrangement to the streamlined arrangement. The quality of the pouring system was reduced by 1.1 kg, which means a reduction of 20%. In this test, casting system from traditional to streamlined at the same time eliminating the casting heat treatment needs, which is a huge savings in the foundry workshop. In addition, the cast-in-place casting system of ductile iron castings shows that the pouring temperature is reduced from 1 400 ° C to 1 300 ° C and there is no risk of cold separation of the castings. This may be due to the fast filling of the streamlined casting system and the deceleration of the fan-shaped runner. The project also through the glass front mold test on the above issues were studied.