Plasma Coating to Replace Cast Iron Cylinder Liners in Production

2012 ◽  
Author(s):  
Thomas Zorn ◽  
Gunter Nentwich ◽  
Anton Pichler
Keyword(s):  
Cast Iron ◽  
Plasma Coating ◽  
Cylinder Liners

Cylinder Liner in Ductile Cast Iron for High Loaded Combustion Diesel Engines

2011 ◽  
Author(s):  
Edney Deschauer Rejowski ◽  
Edmo Soares ◽  
Ingo Roth ◽  
Steffen Rudolph
Keyword(s):  
Mechanical Properties ◽  
Cast Iron ◽  
Wall Thickness ◽  
Diesel Engines ◽  
Ductile Iron ◽  
Gray Cast Iron ◽  
Young Modulus ◽  
Gray Cast ◽  
Cast Material ◽  
Cylinder Liners

With the increase of combustion loading and the trend to reduce engine size, there is a need for thinner but stronger wet cylinder liners. While most of the current cylinder liners are made of gray cast iron, due to its good tribological behavior, machinability performance and competitive price, alternative casting materials like compact graphite iron, ductile iron and even steel are being considered to cover the future engine demands. In this paper, a new ductile iron (DI) cast material for wet cylinder liners is presented. The material has about 60 and 70% higher limits respectively for tensile stress and fatigue resistance as compared to conventional gray cast irons, but without penalty on the tribological properties. There is also a potential improvement to avoid cavitation on the outside surface due to its higher young modulus, which also equates to a higher stiffness. The tested cylinder liners were induction hardened on the running surface and a slide hone process was used to improve wear and scuffing resistance. The liners were tested in a HDD engine with PCP of 245 bar and showed similar wear as observed with conventional cylinder liners of gray cast iron material. The DI cylinder liners were also tested in an abusive scuffing engine test without any concern. The improved mechanical properties of the described new DI material introduce possibilities to reduce liner wall thickness or increase specific output. The preliminary evaluation in this paper showed that this new material is feasible for HDD diesel engines with PCP up to 250 bar. In cases that the customer needs to increase the bore diameter for output reasons there is the potential to reduce the liner wall thickness up to 25% based on high mechanical properties (UTS, Young Modulus and fatigue strength). In both cases, it’s recommended a FEA analysis to support the new component design.

Influence of chemical composition and microstructure of gray cast iron on wear of heavy duty diesel engines cylinder liners

Wear ◽  
2007 ◽  
Vol 263 (7-12) ◽  
pp. 1158-1164 ◽  
Author(s):  
J. Keller ◽  
V. Fridrici ◽  
Ph. Kapsa ◽  
S. Vidaller ◽  
J.F. Huard
Keyword(s):  
Cast Iron ◽  
Chemical Composition ◽  
Diesel Engines ◽  
Gray Cast Iron ◽  
Gray Cast ◽  
Heavy Duty ◽  
Heavy Duty Diesel ◽  
Cylinder Liners

Study of Sea Transportation Effects on Corrosion of Cast Iron Cylinder Liners

2001 ◽  
Author(s):  
Gilson A. Vicentini ◽  
Jan Vatavuk ◽  
João Carmo Vendramim ◽  
Daniel Rodolpho Domingues
Keyword(s):  
Cast Iron ◽  
Sea Transportation ◽  
Cylinder Liners

The Study of Cavitation Erosion Protection Performance of Heavy-Duty Engine Coolants

2014 ◽  
Vol 651-653 ◽  
pp. 948-952
Author(s):  
Jin Mao Chen ◽  
Guan Jun Leng
Keyword(s):  
Cast Iron ◽  
Corrosion Inhibitor ◽  
Cavitation Erosion ◽  
Freezing Point ◽  
Test Time ◽  
Test Duration ◽  
Heavy Duty ◽  
Acid Type ◽  
Cylinder Liners ◽  
Erosion Protection

Ultrasonic vibratory cavitation erosion tests were carried out on studying the cavitation erosion protection performance of different type of heavy-duty engine coolants for cast iron material of wet sleeve cylinder liners. The influence of coolant type, freezing point, corrosion inhibitor content and test duration on anti-cavitation performance were analysed. The experimental results showed that the anti-cavitation erosion performance of organic acid type heavy-duty engine coolants were better than the inorganic salt type heavy-duty engine coolants. For the same formulation coolant, increasing the content of ethylene glycol or corrosion inhibitor can improve the anti-cavitation erosion performance. With the extension of ultrasonic vibration test time, the anti-cavitation erosion protection performance for cast iron was reduced.

MEEHANITE GE

Alloy Digest ◽  
1955 ◽  
Vol 4 (10) ◽  
Keyword(s):  
Fracture Toughness ◽  
Shear Strength ◽  
Cast Iron ◽  
Machine Tools ◽  
Heat Treating ◽  
Damping Capacity ◽  
Iron And Steel ◽  
Medium Strength ◽  
Cylinder Liners ◽  
Lubricating Properties

Abstract MEEHANITE GE is a medium strength iron having high damping capacity, self-lubricating properties, and good machinability. It combines the good properties of both cast iron and steel. Applications include machine tools, gears, shafts, housings, pump bodies, valve bodies, steam cylinders, cylinder liners, casings, cylinder heads, and governor frames. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fracture toughness. It also includes information on casting, heat treating, and machining. Filing Code: CI-12. Producer or source: Meehanite Metal Corporation.

Researches Regarding the Influence of Alloying Elements on the Mechanical Properties of Lamellar Graphite Cast Iron

2018 ◽  
Vol 16 (15) ◽  
pp. 11-16
Author(s):  
Elena Valentina Stoian ◽  
Vasile Bratu ◽  
Cristiana Maria Enescu ◽  
Dan Nicolae Ungureanu
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Cast Iron ◽  
Manganese Content ◽  
Alloying Elements ◽  
Silicon Iron ◽  
Graphite Cast Iron ◽  
Hardness Increase ◽  
Lamellar Graphite ◽  
Cylinder Liners

Abstract Aim of the study is to present the technological process of obtaining cast iron with lamellar graphite for use in the manufacture of cylinder liners, and to identify the main alloying elements and track their influence on the mechanical properties of cast iron with lamellar graphite. Also paper presents analysis of 20 batches of cast iron with lamellar graphite, which are made of cylinder liners, in terms of chemical composition and the mechanical properties. After the analysis of the 20 castings of cast iron Fc 250 it is observed that: the increase in the carbon content shows a decrease of the tensile strength and hardness of the gray cast iron; the increase in silicon content shows a decrease in hardness and tensile strength. Decreasing the amount of graphite and especially the alloy of silicon iron lead to hardness increase 1% Si increases hardness by 50 HB). A statistical analysis has been performed on the data obtained that accounts for changes in alloying additions. A modeling and optimization of mechanical properties (tensile strength and hardness) was performed according to the percentages of carbon, silicon and manganese. Mathematical modeling found that the hardness and traction resistance of the cast iron decreased with the increase in carbon, silicon and manganese content.

Effect of structure on the wear of quenched martensitic cast iron for diesel cylinder liners

1990 ◽  
Vol 32 (12) ◽  
pp. 931-934
Author(s):  
B. M. Astashkevich ◽  
O. M. Eparkhin ◽  
G. A. Maznova
Keyword(s):  
Cast Iron ◽  
Diesel Cylinder ◽  
Cylinder Liners ◽  
Effect Of Structure
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