| 1. | How is timing controlled to prevent nodular iron fade
如何控制球铁孕育时间？防止石墨退化 |
| 2. | Foundry methods for nodular iron castings with medium and small size
中小球墨铸铁件的铸造工艺 |
| 3. | Ductile iron , also known as nodular iron , was developed in 1949 as a substitute for steel
作为钢的替代品， 1949年人类开发了球墨铸铁。 |
| 4. | The bracket of as - cast ferritic nodular iron breaks due to brittle fracture when it is assembled
摘要铁素体球铁铸件支架在装配时发生脆性断裂失效。 |
| 5. | The quality control of cored - wire injection process used for production of as - cast ferrite nodular iron was described
摘要介绍用喂线球化工艺生产优质铸态铁素体球墨铸铁的质量控制要点。 |
| 6. | Abstract : the constitution , process principle and parameters of a continuous desulphurization system used to desulphurize the base iron for nodular iron was introduced . the characteristics of the system and its operation instruction was explained
文摘:介绍了一种炉外球铁原铁液连续脱硫系统的组成、工艺原理及有关参数，说明了该系统的使用方法及特点。 |
| 7. | In order to overcome the shortages of brittleness and poor wear - resistant of the grinding ball in use , according to non - equilibrium crystallizing properties of metal mould nodular iron balls , a new process design project was put forward
为克服磨球在使用过程中性脆、耐磨性不好的缺陷，根据金属型球铁磨球非平衡凝固特性，提出了金属型球铁磨球的工艺设计方案。 |
| 8. | Vermicular iron has graphite shape between flake graphite of gray iron and nodular graphite of nodular iron , tensile strength higher than that of gray iron by 70 % , and some lower than that of nodular iron , so is a sort of excellent material for structural parts
摘要蠕墨铸铁的石墨形状介于灰铁的片状石墨与球铁的球状石墨之间，抗拉强度高于灰铸铁70 % ，略低于球墨铸铁，是结构件的优良材料。 |
| 9. | The main reasons causing increased chilling tendency of nodular iron are as follows : using metal charge containing trace and alloy elements which can increase chilling tendency ; molten iron being holded at high temperature too long ; abnormal nodularizing and / or inoculation treatment , as well as abnormal composition control
摘要引起球铁白口倾向大的主要原因是：炉料稳定性差、电炉保温、球化处理及铁液成分控制和孕育处理出现异常。 |
| 10. | Abstract : it was verified through experiment and measurement that there was growth phenomenon taking place with nodular iron castings after graphitizing annealing at low temperature . the emergence mechanism and reason of the “ annealing growth nature ” was dicussed , and its prevention measures was proposed
文摘:通过试验和测试，证实了球铁件经低温石墨化退火后存在的生长现象，并对这种“退火生长性”产生的机理及原因进行探讨，提出了防止措施。 |
