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1)  as-cast gray iron
铸态灰铁
2)  gray iron
灰铸铁
1.
Micro-plasma arc surface treatment of gray iron;
灰铸铁微束等离子弧表面处理的研究
2.
The melt treating techniques used for the production of low alloyed hi-strength gray iron and vermicular iron cylinder blocks and heads were summarized.
综述了用作发动机缸体缸盖的低合金高强度灰铸铁和蠕墨铸铁的铁液处理技术。
3.
The factors influencing the cutting machinability of gray iron cylinder blocks were summarized including chemical composition, melting and inoculating processes, graphite and hard particles in the matrix.
综述了影响灰铸铁缸体切削加工性的因素,包括化学成分、熔炼及孕育处理方法、石墨和基体组织中的硬质点。
3)  gray cast iron
灰铸铁
1.
Effect of tin on the microstructure, properties and corrosion resistance of gray cast iron;
锡对灰铸铁组织性能及耐蚀性的影响
2.
Friction and wear of ceramics against gray cast iron in distilled water;
水润滑下陶瓷与灰铸铁副的滑动磨损特性
3.
The gray cast iron samples reinforced by surface modified SiC nano-powders were prepared under industrial conditions by foundry method.
在生产条件下采用冲入铸造法制备了改性纳米SiC粉体强化灰铸铁材料。
4)  gray cast iron
灰口铸铁
1.
Tensile behavior of gray cast iron with directional graphite flakes
定向石墨灰口铸铁的拉伸行为
2.
This pure α-Al2O3 coating were used to high speed cutting of gray cast iron in our study,for solving the problem that κ-Al2O3 coating or κ-Al2O3 and α-Al2O3 coating couldn't be applicative stably in high speed cutting.
采用一种全新的过渡层工艺,在过渡层上进行Al2O3化学气相沉积涂层,制备了单一α-Al2O3涂层,取代传统的κ-Al2O3涂层或κ-Al2O3和α-Al2O3混合涂层,应用于灰口铸铁高速切削加工,解决了传统的κ-Al2O3涂层或者是κ-Al2O3和α-Al2O3混合涂层高速切削中稳定应用的问题。
3.
8%SiC)suggested by multi-factor regression analysis,the wear resistance layers on the surface of HT200 gray cast iron of about 3mm depth is obtained,and its wear resistance is 2.
用该配方可以在灰口铸铁HT200表面获得一层3mm左右的耐磨复合层,其耐磨性约为基体试样的2。
5)  gray iron
灰口铸铁
1.
The study of behavior of graphite phase in the laser hardening layer of gray iron;
珠光体灰口铸铁激光硬化层中石墨相行为研究
2.
In order to find a quick and accurate test method for discriminating the nodular iron from the gray iron on the production spot, ultrasonic attenuation tests were conducted on both the nodular iron and gray iron specimens with different thicknesses by adopting the ultrasonic waves with different frequencies.
为了找到快速准确鉴别球墨铸铁件与灰口铸铁件的现场检测方法,采用不同频率的超声波对不同厚度的球墨铸铁和灰口铸铁试样进行了超声衰减测试,发现灰口铸铁件超声衰减明显,而球墨铸铁件超声衰减微乎其微。
3.
Through the single factor test on gray iron added with Cr、Al、Cu respectively,the effect of the three elements on the cast structure and corrosion resistance has been analyzed.
采用单因素试验方法研究了Cr、Al、Cu三元素对灰口铸铁组织及耐蚀性的影响,结果表明,分别加入少量的Cr、Al、Cu,对铸态组织有不同的影响,三元素均提高铸铁的耐蚀性,其中Al的作用最为显著。
6)  grey cast iron
灰口铸铁
1.
The microhardness of nodular cast iron and grey cast iron treated by the technology of low temperature gas multicomponent permeation was studied.
采用低温气体多元共渗处理工艺,对经处理的球墨铸铁和灰口铸铁的显微硬度进行研究。
2.
The NiCrBSi powder alloying on the surface of grey cast iron was realized successfully by means of light beam heating.
用NiCrBSi合金粉末对灰口铸铁表面实现光束合金化的实验研究表明 ,光束线能量及合金粉末用量是表面合金化区合金化程度的重要决定因素。
3.
The cavitation erosion behavior of TiN, CrN and (Ti,Cr)N hard coatings produced by arc ion plating on the surface of grey cast iron was studied with an ultrasonic cavitation erosion testing apparatus and a scanning electron microscope.
利用磁致伸缩振动空蚀试验装置 ,研究了灰口铸铁表面多弧离子镀 Ti N、Cr N及 (Ti,Cr) N硬质膜的抗空蚀性能 。
补充资料:铸态高铬屈氏体磨球的生产
摘要:本文从优化成分设计、熔炼、变质处理、铸造及热处理等工艺控制措施入手,综合介绍了铸态高铬屈氏体磨球的生产过程,并经生产试验使各工艺参数达最佳匹配,为生产出高质量的铸态高铬屈氏体磨球提供了强有力的理论支撑。
                关键词:高铬屈氏体磨球 优化 工艺控制 
                
            含铬大于11%的铬系白口铸铁成为高铬铸铁,马氏体Cr15高铬铸铁是目前国内外广泛应用的较典性的耐磨铸铁,用于制造磨球、衬板等,取得了较好的节材降耗效果。马氏体高铬铸铁磨球具有较高的硬度,但韧性较差。马氏体Cr15磨球是经热处理淬火加回火的工艺获得的,因此需要一套专用的热处理设备。这不仅投资及能源消耗大、生产周期长、生产成本也较高,从而影响了它的广泛应用。
                
            我们的目的是研制一种既有高铬铸铁的耐磨性和韧性,生产工艺简单、成本低廉的材料:铸态高铬屈氏体磨球。它与淬火马氏体Cr15磨球相比,具有省工、省时、省能耗、省原材料消耗的的优势。它的生产应用能产生较大的社会效益。
                一.成分设计
                
            碳:碳为生成共晶碳化物(Cr·Fe)7C3的主要元素,共晶碳化物在耐磨性方面起着重要作用。碳含量决定碳化物的数量。选择较高的碳含量,可获得较多的高硬度碳化物。为提高耐磨性,碳的质量分数应控制在2.8~3.1%。
                
            铬:铬含量决定碳化物的类型。为保证碳化物以M7C3为主,铬含量必须大于12%,过低不能形成高硬度的(Cr·Fe)7C3型碳化物;过高则成本提高。因此铬的质量分数为12~14%。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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