From inner to outside, the composite pipe consisted of alumina ceramic layer, metal transition layer, white cast layer, carbon atom diffusion layer and nodular cast iron layer.
复合管从里到外由氧化铝陶瓷层、金属过渡层、白口铸铁层、碳原子扩散层、球墨铸铁层组成。
Nodular cast iron specimens with typical mesostructure are tested to study the meso damage evolution and failure mechanism at different triaxial stress states.
选用具有典型细观结构特征的球墨铸铁材料进行试验，探讨这种金属材料在各种三轴应力状态下的细观损伤破坏。
Smithing cast iron. Nodular cast iron.
可锻铸铁。球墨铸铁。
The company products mainly rely on nodular cast iron and alloy casting iron.
公司产品主要以球墨铸铁及合金铸铁为主。
In this article, the influence of silicon content and temperature on impact toughness of malleable nodular cast iron has been studied.
研究了硅量和温度对球墨可锻铸铁冲击韧性的影响。
As an important engineering material, nodular cast iron is widely used in each department of national economy.
作为一种重要的工程材料，球墨铸铁广泛应用于国民经济各部门。
The direct bonding joint between cemented carbide and nodular cast iron and the indirect bonding joint by using nickel foil as intermediate layer were obtained by HIP diffusion bonding process.
用热等静压扩散连接法获得了硬质合金与球墨铸铁的直接连接接头和以镍箔为中间夹层的间接连接接头。
Defects of crankshaft surface and body will produce important effect on engine reliability. This paper probes into flaw detection technology of forging steel and nodular cast iron of crankshaft.
曲轴表面及本体的缺陷，对发动机的可靠性有重要影响，对锻钢和球墨铸铁曲轴的探伤技术进行探讨。
The RE(Y)-Mg-Si-Fe nodularizer had been used to cast heavy sectioned high ductile nodular iron cooling wall castings.
应用钇基重稀土镁复合球化剂，铸造厚大断面高韧性球铁冷却壁，成功地获得了铸件中心部位铸态高性能。
This problem could be solved by using ferrite nodular graphite cast iron.
采用以铁素体为基的蠕墨铸铁可解决此问题。
The influence of composition, structure and defects of pig irons from different producing areas on the heredity of nodular cast iron was investigated by.
研究了不同产地原料生铁的成分、组织和缺陷在生产球墨铸铁时对铸件的遗传性影响。
According to the requirements of automobile exhaust pipes on material and its properties, a high strength and toughness nodular cast iron of thin section castings has been developed.
针对汽车发动机排气管材质及性能要求，研制了一种薄壁高强韧铸态球墨铸铁排气管，确定了其化学成分和铸造工艺。
The technology of low temperature gas multicomponent permeation for nodular cast iron was studied.
对球墨铸铁的低温气体多元共渗技术进行了研究。
The domestic and foreign nodular graphite cast iron standard samples were analyzed with vacuum direct-reading spectrometer and were applied in the routine analysis.
运用真空直读光谱仪分析国产和国外产球墨铸铁标样，并应用在生产实践、炉前分析中；
The effect of wind cooling on microstructure and mechanical properties of nodular cast iron (QT450-10) was investigated.
研究了风冷热处理对低牌号球墨铸铁(QT 450 - 10)组织和性能的影响。
It is a basic demand for evaluating the microstructure and performance to determine the graphite size and its spheroidization rate in nodular cast iron.
正确测定球墨铸铁中石墨大小及球化率，是对球墨铸铁组织性能进行评定的基本要求。
This paper is the research of wear resistance for the specimen of grey cast iron and nodular iron by laser treating, induction hardening and nitrocarburizing.
本研究针对常用的灰铸铁及球墨铸铁材料分别进行激光处理、感应淬火和氨化处理，然后进行耐磨性对比试验。
Because of the grain refining and recrystallization, the matrix was strengthened and the synthetic properties of nodular cast iron were improved.
由于晶粒细化和再结晶结果，基本得到强化，提高了球墨铸铁的综合性能。
This paper has discussed the wearability of groy cast iron and nodular cast iron and provided several surface treating methods for increasing their wear-resistance.
本文借助实验，探讨了铸铁、球墨铸铁的磨损特性，同时指出了几种提高其耐磨性的表面处理方法。
Adding copper into nodular iron caused change of its structure and properties both in as - cast as well as heat - treated condition that expanded application scope of nodular iron.
加铜的球墨铸铁无论铸态或热处理都引起了组织及性能的变化，这种改变拓宽了球墨铸铁的应用范围。
The chemical composition and heat treatment process of alloy nodular cast iron bloom rollers were experimentally studied.
对合金球墨铸铁初轧辊的化学成分和热处理工艺进行了试验研究，提出了最佳热处理工艺。
The forming mechanism of pinhole defect in no-solvent polyurethane coat on centrifugal nodular cast iron pipe is analyzed, some effective measures to eliminate offered.
分析了离心球铁管无溶剂聚氨酯涂层针孔缺陷形成的机理，给出了消除这一缺陷的有效措施。
This article introduces the principles and methods of the technology of thermal spraying, and specific application in the restoration of nodular cast iron crankshaft.
介绍了热喷涂技术的原理、方法及其在球墨铸铁曲轴修复中的具体应用。
Grey cast iron, nodular cast iron, cast steel, stainless steel.
灰铸铁，球墨铸铁，铸钢，阀体不锈钢。
From birth to now, nodular cast iron play an important part in the field of wear resistance.
球墨铸铁从诞生以来，在耐磨领域起到了重要作用。
Nodular cast iron crank shaft which has not been processed by adding nitrogen, its surface fatigue strength is lower, this is the reason that results in the fracture.
球墨铸铁曲轴未经过氮化处理，表面疲劳强度低是导致曲轴断裂的原因；
Medium silicon heat-resisting nodular cast iron has been chosen instead of common grey iron to make cast aluminium crucible according to the work condition. making process and cost of the crucible.
依据铸铝坩埚的服役条件，制造工艺和成本要求，选择中硅耐热球铁取代普通灰口铸铁制造铸铝坩埚。
Main points in design and construction concerning the large diameter nodular cast iron pipeline are described by means of Taiyuan water supply engineering from the Huanghe River.
介绍了大口径球墨铸铁管的主要性能特点，并通过黄河水源太原市城市给水工程，就大口径球墨铸铁管在设计与施工中的要点进行了论。
Main points in design and construction concerning the large diameter nodular cast iron pipeline are described by means of Taiyuan water supply engineering from the Huanghe River.
介绍了大口径球墨铸铁管的主要性能特点，并通过黄河水源太原市城市给水工程，就大口径球墨铸铁管在设计与施工中的要点进行了论。
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