This document provides information about graphite products from Better Graphite (Tianjin) Technology Co., Ltd. It describes their medium-grain specialty graphite and high pure graphite block products, including typical sizes, dimensions, and technical specifications for properties like bulk density, specific resistance, compressive strength, and coefficient of thermal expansion. Contact information is also provided for Lynch at Bettergraf.
Based on physical and thermal properties graphite cast iron has got more strength than sand cast Mg alloy and it is clear from the results that the load carrying capacity of former is larger than the later. Hence Graphite cast iron is preferred for the manufacture of rack and pinion.
In static structural analysis the total deformation and von - mises stresses are more in sand cast Mg alloy than graphite cast iron. Hence graphite cast iron has better strength than Sand cast Mg alloy.
In modal analysis the number mode shapes are higher for graphite cast iron than sand cast Mg alloy.
Under transient conditions the total deformation of Graphite CI is less than that of Sand cast mg alloy. Hence former is preferred under Transient conditions.
Under fatigue loads the damage is more in sand cast Mg alloy. Hence graphite CI is preferred for manufacturing of Rack and pinion.
Hence Keeping all the analysis in view the graphite cast iron is preferred over sand cast Mg alloy.
Based on physical and thermal properties graphite cast iron has got more strength than sand cast Mg alloy and it is clear from the results that the load carrying capacity of former is larger than the later. Hence Graphite cast iron is preferred for the manufacture of rack and pinion.
In static structural analysis the total deformation and von - mises stresses are more in sand cast Mg alloy than graphite cast iron. Hence graphite cast iron has better strength than Sand cast Mg alloy.
In modal analysis the number mode shapes are higher for graphite cast iron than sand cast Mg alloy.
Under transient conditions the total deformation of Graphite CI is less than that of Sand cast mg alloy. Hence former is preferred under Transient conditions.
Under fatigue loads the damage is more in sand cast Mg alloy. Hence graphite CI is preferred for manufacturing of Rack and pinion.
Hence Keeping all the analysis in view the graphite cast iron is preferred over sand cast Mg alloy.
Abrasion wear performance of quenched wear resistant steelsNiko Ojala
The wear resistance of commercial quenched wear resistant steels is commonly categorized by their Brinell hardness. The hardness grades are considered almost as standards, although they are not and there are no earlier evidence about their wear performance.
In this study the differences of 15 different comercially available 400 HB grade steels were tested with natural granite gravel as abrasive material. The outcome was that the difference in abrasive wear perfomance can be more than 50 %.
Nominally similar 400 HB grade quenched wear
resistant steels do not perform equally under heavy
abrasion wear, and hardness alone is not an accurate predictor of the steel’s wear performance. Alloying and manufacturing of the steel and thus its microstructure has a significant effect particularly on the work hardening behavior of the steel during abrasion, leading to different wear performances under such conditions.
This presentation material is concerned with research results for Ultra High Performance Concrete. The research was focused on the behavior of shrinkage in UHPC.
"Mechanical characterisation of braided BFRP rebars for internal concrete rei...TRUSS ITN
This study investigates the tensile behaviour of basalt fibre reinforced polymer (BFRP) composites that were developed using braiding as a manufacturing technique. Those materials will be introduced in concrete reinforcement applications. Three BFRP rebar sizes with a circular constant cross section and different braided configurations are developed and characterised with respect to their internal architecture. The braid angle on each layer of the rebar, varying from 10◦ to 45◦, is an important parameter that has a direct impact on its performance characteristics. The effective longitudinal in-plane modulus (ExFRP) of each braided sample is calculated numerically using the classical laminate theory (CLT) approach and then, tensile tests are performed according to the relevant standard. Comparisons between analytical and experimental data demonstrate a significant influence of braiding parameters, like braiding angle and number of braiding layers, on the mechanical properties of BFRP rebars. In addition, it is noteworthy that all predicted moduli determined with CLT numerical approach are found to be higher than the test results and overestimate rebar’s stiffness, most probably due to the degree of undulation from braiding process.
High-stress abrasion and impact-abrasion testing of wear resistant steelsVilma Ratia
A conference presentation given in International Tribology Conference 2011.
For full article please visit https://www.jstage.jst.go.jp/article/trol/8/2/8_152/_article
A STUDY ON TENSILE AND COMPRESSIVE STRENGTH OF HYBRID POLYMER COMPOSITE MATER...IAEME Publication
Hybrid composite Materials have extensive engineering application where strength to weight ratio, low cost and ease of fabrication are required. Hybrid composites provide combination of properties such as tensile modulus, compressive strength and impact strength which cannot be
realized in composite materials.
Abrasion wear performance of quenched wear resistant steelsNiko Ojala
The wear resistance of commercial quenched wear resistant steels is commonly categorized by their Brinell hardness. The hardness grades are considered almost as standards, although they are not and there are no earlier evidence about their wear performance.
In this study the differences of 15 different comercially available 400 HB grade steels were tested with natural granite gravel as abrasive material. The outcome was that the difference in abrasive wear perfomance can be more than 50 %.
Nominally similar 400 HB grade quenched wear
resistant steels do not perform equally under heavy
abrasion wear, and hardness alone is not an accurate predictor of the steel’s wear performance. Alloying and manufacturing of the steel and thus its microstructure has a significant effect particularly on the work hardening behavior of the steel during abrasion, leading to different wear performances under such conditions.
This presentation material is concerned with research results for Ultra High Performance Concrete. The research was focused on the behavior of shrinkage in UHPC.
"Mechanical characterisation of braided BFRP rebars for internal concrete rei...TRUSS ITN
This study investigates the tensile behaviour of basalt fibre reinforced polymer (BFRP) composites that were developed using braiding as a manufacturing technique. Those materials will be introduced in concrete reinforcement applications. Three BFRP rebar sizes with a circular constant cross section and different braided configurations are developed and characterised with respect to their internal architecture. The braid angle on each layer of the rebar, varying from 10◦ to 45◦, is an important parameter that has a direct impact on its performance characteristics. The effective longitudinal in-plane modulus (ExFRP) of each braided sample is calculated numerically using the classical laminate theory (CLT) approach and then, tensile tests are performed according to the relevant standard. Comparisons between analytical and experimental data demonstrate a significant influence of braiding parameters, like braiding angle and number of braiding layers, on the mechanical properties of BFRP rebars. In addition, it is noteworthy that all predicted moduli determined with CLT numerical approach are found to be higher than the test results and overestimate rebar’s stiffness, most probably due to the degree of undulation from braiding process.
High-stress abrasion and impact-abrasion testing of wear resistant steelsVilma Ratia
A conference presentation given in International Tribology Conference 2011.
For full article please visit https://www.jstage.jst.go.jp/article/trol/8/2/8_152/_article
A STUDY ON TENSILE AND COMPRESSIVE STRENGTH OF HYBRID POLYMER COMPOSITE MATER...IAEME Publication
Hybrid composite Materials have extensive engineering application where strength to weight ratio, low cost and ease of fabrication are required. Hybrid composites provide combination of properties such as tensile modulus, compressive strength and impact strength which cannot be
realized in composite materials.
Mejora del acceso a la población de “El Rebolledo" Provincia de Alicante, sit...Mara Guirado
La adecuación y reforma del corredor de Levante A-31 (antigua N-330) en el tramo entre Alicante y el límite de provincia con Albacete surge de la voluntad, expresada por la Subdirección General de Conservación de la Dirección General de Carreteras del Ministerio de Fomento, de adaptar los corredores de autovías denominadas de primera generación, que se construyeron aprovechando en su mayor parte las carreteras existentes y duplicando su calzada; a las exigencias y necesidades actuales de los usuarios. El criterio principal que guía estas actuaciones es la mejora de la seguridad vial.
No obstante dicha adecuación no se ha llevado a cabo, por lo que en la actualidad surge la necesidad de mejorar ciertos aspectos de la Autovía A-31, como es objeto de este Trabajo Fin de Grado.
La salida situada en el P.K. 230+000 de la Calzada Izquierda (CD) de la Autovía A-31, da acceso a El Rebolledo y La Alcoraya.
La pedanía de El Rebolledo, perteneciente a la ciudad de Alicante, la cual cuenta con 1.217 habitantes, según datos del INE 2009, de los cuales 914 viven en el núcleo urbano que cuenta con 12 Km2. Esta pedanía se encuentra a una distancia de 13 Km de Alicante y a 18 de Elche.
Se han detectado problemas de seguridad en dicho enlace y acceso, por lo que se va a estudiar la mejora de la salida del P.K. 230+000 para que en la medida de lo posible los alcances y colisiones sean nulos y que los usuarios de la vía posean mayor seguridad. Además se estudiará la supresión las intersecciones peligrosas que dan acceso a vías de servicio y caminos rurales.
The Master's Degree and Why It's Important danieljacobes
In today's education trends, there's been great debate on whether a Master's Degree is necessary to obtain employment. More than 20% of the jobs in the US economy requires graduate-level education, only 11% of the population hold MBA's. There are several reasons that an MBA is important and here are a few for you to consider.
we are a prestressed concrete steel strand mafactuer, located in Tianjin China. Our factory wes founded in 1994. Now we developed into the biggest production capacity with 260000 tons per year for pc strand.
Aluminum Foil for Li-ion Battery Manufacturing Targray
Targray aluminium foil is a cathode material (current collector) used in lithium-ion battery manufacturing. The foils offer excellent performance and are available in a number of different standards, strengths and thicknesses.