2) 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。
3) 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。
4) 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 。
5) grey iron
灰口铸铁
1.
Influences of Technological Parameters on As-Cast Bainite Grey Iron;
工艺参数对铸态贝氏体灰口铸铁的影响
2.
A measuring method taking views of hydrogen behaviours under microscope is applied to study the redistributive and bubbling-up course of the residual diffusible hydrogen in the grey iron weldments welded with both the homogenous and the heterogenous electrodes.
采用显微镜下摄影测氢法，从微观上研究了灰口铸铁母材同质焊缝及异质焊缝焊接区扩散氢的分布及其逸出动态过程，说明了由于石墨的储氢及阻碍氢向前扩散的作用，使进入灰口铸铁焊接接头热影响区的扩散氢很少，因此，氢对灰口铸铁热影响区的冷裂纹倾向影响也小。
6) "Casting,gray iron"
铸灰口铁
补充资料：灰口铸铁
铸铁的一种。一般指含碳量2.7～4.0％、含硅量0.5～3％和锰、磷、硫总量不超过2％的铁、碳、硅合金。碳量的75～90％为片状石墨，断口呈暗灰色，因而得名。由于石墨的强度很低(2kgf/mm2),且呈片状分布于基体中（图1）,所以石墨在灰口铸铁中起着割裂基体（图2）、恶化机械性能的作用；但石墨在铸铁中可起吸震和自润滑作用，所以广泛用灰口铸铁制作机器的机座。中国是最早使用灰口铸铁的国家（见冶金史）。 灰口铸铁的抗拉强度一般为12～30kgf/mm2,随着碳、硅量的降低，机械性能也相应提高。但是，当抗拉强度超过20kgf/mm2时，如果再降低碳、硅量,又会使机械性能恶化。1922年出现了一种"孕育铸铁"，实际上是一种高强度灰口铸铁。这种铸铁在浇铸时严格控制化学成分，加入石墨化元素，改变其凝固过程,降低过冷度,使共晶团细化，片状石墨的尺寸及分布也得到改善，可使抗拉强度超过30kgf/mm2。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条