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球墨铸铁管件铸造工艺方法选择原则

作者: -1    发布时间: 2018-07-26    次浏览
球墨铸铁管件铸造工艺方法选择原则之优先采用低成本铸造工艺。
Low cost casting process is preferred for ductile iron pipe casting.

球墨铸铁管件铸造工艺方法选择原则之铸造方法应和生产批量相适应。
The casting method of ductile iron pipe fittings should be suitable for production batch.

球墨铸铁管件铸造工艺方法选择原则之造型方法应适合工厂条件。
The casting method of ductile iron pipe fittings should be suitable for factory conditions.

球墨铸铁管件铸造工艺方法选择原则之要兼顾铸件的精度要求和成本。
The selection principle of ductile iron casting process should take into account the precision and cost of casting.

不同口径管件的最佳工艺:
Best process for pipe fittings of different caliber:

≤DN300:黏土砂、覆膜砂、V法等铸造工艺;
Less than or equal to DN300: clay sand, coated sand, V method and other casting processes;

≥DN400:消失模、树脂砂、V法等铸造工艺。
Greater than or equal to DN400: lost die, resin sand, V method and other casting process.

对于管件铸造工艺方法选择当下客户对铸铁管件产品质量、铸造精度、使用性能等要求在不断提高,铸铁管件生产技术向着精密化、高质量、自动化和清洁化、绿色制造的方向发展。
Methods select the customers on the cast iron pipe casting process for pipe fittings products quality, precision casting, using performance and other requirements in constantly improve, cast iron pipe production technology towards motors, high quality and automation and the direction of clean production and green manufacturing.

球墨铸铁铸铁管件生产的工艺过程包括:金属熔炼、模型制造、浇注凝固和脱模清理打压精整等。铸铁管件生产常用黏土砂铸造工艺;覆膜砂铸造工艺;树脂砂铸造工艺;消失模铸造工艺;V法铸造等工艺;采用什么工艺要根据企业自身实际情况进行选择。
The production process of ductile iron pipe fittings includes: metal smelting, model making, casting solidification, mould cleaning and finishing. Common clay sand casting process in production of cast iron pipe fittings; Film-covered sand casting process; Resin sand casting process; Epc process; V process of casting; The process should be chosen according to the actual situation of the enterprise.

单件小批是大口径和特大口径铸铁管件生产的特点及特性,树脂砂手工造型仍是重要的方法,手工造型能适应各种复杂的要求,比较灵活,不要求很多工艺装备。树脂砂铸造对于单件小批量生产的大型球墨铸铁管件最为适宜,采用地坑造型法成本低,投产快。
Sheet small batch is large diameter and super-large diameter cast iron pipe fittings production characteristics and properties of resin sand manual modeling is still important, the method of manual modelling is able to meet the requirements of a variety of complex, more flexible, does not require a lot of process equipment. Resin sand casting is most suitable for large ductile iron pipe fittings produced in small batch.

小口径球墨铸铁管件采用机械造型覆膜砂芯工艺,其生产效率快;质量保证;合格率高;出口和几何尺寸与表面质量要求高的产品优先选择V法铸造工艺。
Small diameter ductile iron pipe fittings adopt the technology of mechanical moulding film - coated sand core. Quality assurance; High pass rate; V casting process is preferred for products with high requirements of export and geometric dimensions and surface quality.

不同的企业生产条件(包括设备、场地、员工素质等)、生产习惯、所积累的经验各不一样,球墨铸铁管件铸造工艺方法选择标准也不相同。企业应该根据这些条件考虑适合做什么和不适合做什么?各种铸造方法所获得的铸件精度不同,初投资和生产率也不一致,最终的经济效益也有差异。因此,要做到多、快、好省,就应当兼顾到各个方面。应对所选用的铸造工艺方法进行初步的成本估算,以确定经济效益高又能保证铸件要求的。
Different enterprise production conditions (including equipment, sites, staff quality, etc.), production habits, accumulated the experience of each different, ductile iron pipe casting method choice standard is not the same. What is the right thing to do and what is not? The casting precision obtained by various casting methods is different, the initial investment and productivity are different, and the final economic benefit is different. Therefore, in order to achieve more, faster and more efficient, we should give consideration to all aspects. A preliminary cost estimate should be made for the selected casting process to determine the casting requirements with high economic benefits.