球墨铸铁

认为球墨铸铁存在损伤阈值，其大小随球化率提高而呈直线增大，但损伤阈值皆小于屈服强度；

The damage threshold of nodular cast iron increases with nodularity , but it is below the yield strength .

改性纳米SiC粉体强化球墨铸铁的耐磨损性能

Wear Resistance of Surface Modified SiC Nanometer Powders Reinforced Nodular Cast Iron

3D动画技术在球墨铸铁检测仪上的应用

Application of 3D Studio Technique in Nodular Cast Iron Testing Instrument

球墨铸铁铸造工艺CAD软件开发

Development of Foundry Method CAD Software for Nodular Iron Castings

Ni对球墨铸铁热处理的影响

Influence of Ni on the Heat Treatment of Ductile Cast Iron

Ni在球墨铸铁中的行为及作用

The behavior and function of Ni in ductile iron

运用Windows环境下的VC++开发了球墨铸铁铸造工艺CAD软件。

By using VC + + in the environment of Windows , a foundry method CAD software was developed .

确定了利用大量废钢生产合成铸态QT450-10球墨铸铁的工艺。

The process to produce composition QT450-10 cast using a great deal waste steel was defined .

Cr合金铸态球墨铸铁的组织和性能&Cr在铸态球墨铸铁中的应用（1）

Microstructure and Properties of Cr-Alloyed As-Cast Nodular Iron & Application of Cr in As-Cast Nodular Iron (ⅰ)

采用华铸CAE软件对球墨铸铁轮毂的凝固过程进行了模拟。

The simulation of ductile iron hub during solidification was conducted by means of Huazhu CAE software .

对马氏体球墨铸铁在不同pH值石英砂浆中的静载三体腐蚀磨损特性进行了试验研究，并与低铬白口铸铁进行了对比。

The three body corrosion wear behaviors of martensitic ductile iron and low chromium white cast iron under the test conditions of different pH value slurries have been studied .

PIXE分析技术在球墨铸铁元素微分析中的应用

An Application of PIXE Analysis on the Trace Elements of Nodular Cast Iron

采用Cu、Sb合金化元素和余温正火工艺获得铸态高强度和具有良好韧性的珠光体球墨铸铁。

An as-cast high-strength pearlite ductile iron with good toughness was fabricated by method of the addition of Cu , Sb alloying elements in conventional nodular cast iron .

测定了各类球墨铸铁在低应力下疲劳裂纹扩展界限应力强度因子△K（th）值，肯定了球铁是存在ΔK（th）值的。

Estimation of threshold value Δ Kth in fatigue crack growth of different REMg ductile irons under lower stress revealed that the existence of Δ Kth in the irons is affirmed .

当W足够小时，两条热分析曲线的差别也足够小，其对应的两种球墨铸铁铁液6h凝固组织中石墨形态的差别也足够小；

And when W of two thermal analysis curves is small enough , the graphite morphologies of the samples that solidify in 6 hours are similar .

球墨铸铁经过气体多元共渗后可在其表面形成氮化层，通过X射线衍射和扫描电镜对渗层的相结构与形貌进行分析。

The nitride layer was formed on the surface of ductile cast iron by gas multi-element penetration , and the phase structure and section appearance of nitride layer were analyzed by the XRD and SEM .

新显色剂AsA-TB直接光度法测定球墨铸铁中铈组稀土

Direct photometric determination of ce-group rare earth elements with the new reagent asa-tb

DN1600×90°T型双承口球墨铸铁弯管研制

Development of DN1600 × 90 ° T-Type Double Socket Ductile Iron Elbow Pipe

用超声疲劳试验技术研究了球墨铸铁GS52在20kHz时的疲劳寿命。

The fatigue life of GS 52 nodular graphite cast iron was studied with the ultrasonic fatigue technique at 20 kHz .

B-Al球墨铸铁球化工艺研究

Spheroidizing Treatment Investigation of B-Al Spheroidal Graphite Cast Iron

Fe-C-Sb，Fe-C-Sb-Ce，Fe-C-Sb-YFe-Nb-Ce溶液的热力学和稀土、镁与锑在球墨铸铁中行为的研究

Thermodynamics of fe-c-sb , fe-c-sb-ce , fe-c-sb-y and fe-nb-ce liquid solutions and behaviour of re , mg and Sb in ductile iron

介绍了高速线材轧机φ410mm离心铸造复合球墨铸铁轧辊的试制过程。

This paper describes the trial production process of 410 mm centrifugally double poured nodular cast iron rolls used in high speed wire rolling mills .

运用冲天炉熔炼试制QT400-18球墨铸铁，作为锌锭模的材质，提高锌锭模使用寿命。

To use pick cupola smelting triM-produced QT400-18 ductile iron , zinc ingots module as material , improve zinc ingots mode using life .

报道了用千瓦级Nd：YAG脉冲激光器对球墨铸铁QT600进行表面重熔的实验。

It report that the experiment of surface remelting for nodular cast iron ( QT600 ) with a pulsed 1 ? kW Nd : YAG laser .

应用S600数字图像处理系统提取球墨铸铁断口纵剖面线，根据经典的Mandelbrot分形模型和Underwood修正分形模型对其分形特性进行了研究；

The fracture profile of ductile iron has been extracted by means of an S 600 digital image processing system and its fractal characteristics are studied with a classical Mandelbrot fractal model and an Underwood modified fractal model .

对经正火、气体氮化、圆角滚压三种工艺的球墨铸铁曲轴进行弯曲疲劳试验，测出其疲劳极限M-1（50%）分别为1471、1935和3010N·m。

As bending fatigue test result , the bending fatigue limite M - 1 ( 50 % ) of three sorts of nodular iron crankshafts treated with different processes including normalization , gas-nitridation and round cor-ners rolling , was respectively : 1471,1935and3010N · m.

根据泵承受的最大压力，泵体和泵盖材质采用灰口铸铁（1.6Mpa）、球墨铸铁（2.0Mpa）、铸钢（2.5Mpa，包括不锈钢）。

According to the maximum pressure to bear , pump body and cover can be made of grey cast iron ( 1.6Mpa ), spheroidal graphite cast iron ( 2.0Mpa ) or cast steel ( 2.5Mpa , including stainless steel ) .

结果表明，经多元共渗处理后，在球墨铸铁表面形成含有碳化物和氮化物的钝化层、共渗层和过渡层，其表面硬度可达807HV，渗层厚度40um。

The results show that passivation layer , permeated layer and buffer layer which contain carbide and nitride were formed on nodular cast surface after gas multicomponent permeation . The surface hardness reaches to 807 HV and depth of permeated layer is 40 um .

球墨铸铁生产技术的应用与展望

Application and Outlook of the Manufacturing Technology of Nodular Cast Iron

用喂线法工艺生产厚大球墨铸铁件

Using Cored Wire Injection Process to Produce Heavy Nodular Iron Castings