搜索结果: 1-15 共查到“机械工程 properties”相关记录26条 . 查询时间(0.187 秒)
MODELING THE INTERDEPENDENCE OF ELECTROCHEMICAL AND MECHANICAL PROPERTIES IN PER SULFONATE ACID PROTON EXCHANGE MEMBRANES
PEM fuel cell membrane Conductivity Measurement
2015/1/12
Proton exchange membrane fuel cells (PEMFC’s) offer an attractive alternative energy resource over traditional fossil fuels. The advantages such as high power density, relatively quick start-up, rapid...
Effect of Heat Input on the Microstructure and Mechanical Properties of 07MnCrMoVR Weld Joints
07MnCrMoVR heat input microstructure impact toughness
2011/8/4
As a new type of low cracking suscepbility high strength steel, 07MnCrMoVR steel has excellent weldability, with low carbon equivalent and cold cracking susceptibility coefficient. However, there are ...
Study on the Thickening and Rheological Properties of Crystalline Polyester Using in Low Pressure Sheet Molding Compounds
low pressure low pressure sheet molding compound (LPMC)
2011/8/4
Low pressure sheet molding compound (LPMC, 1.0 MPa–3.0 MPa, 95 ℃–103 ℃) is a new kind of thermosetting material with crystalline polyester as a physical thickenner. LPMC is different from conventional...
Properties and Applications of the Eccentric-gear Drive
eccentric gear transmission property variable speed transmission
2011/8/4
The eccentric-gear can be used for variable speed transmission. But, due to the vibrations caused by variation of backlash in working process, the eccentric-gear is seldom applied in engineering proje...
Effect of Heat Input on the Microstructure and Mechanical Properties of 07MnCrMoVR Weld Joints
07MnCrMoVR heat input microstructure impact toughness
2011/8/4
As a new type of low cracking suscepbility high strength steel, 07MnCrMoVR steel has excellent weldability, with low carbon equivalent and cold cracking susceptibility coefficient. However, there are ...
Mechanical and electrical properties of mined coal filled polyethylene and polyamide
Mined coal Filled polymers Polymer composites
2009/12/3
Purpose: The purpose of the present paper is to present results of basic mechanical properties research of high-density polyethylene and polyamide 6 filled with two kinds of mined coal particles. Beca...
Microstructure and properties of FSW joints of 2017A/6013 aluminium alloys sheets
Friction Stir Welding Aluminium alloy 2017A Aluminium alloy 6013
2009/12/2
Purpose: The aim of the studies was to analyse the structure and mechanical properties of FSW joints. Experiment were perform in order to study possibilities to join different aluminium alloys 2017A a...
Influence of the method of heating/cooling moulds on the properties of injection moulding parts
Engineering polymers Working properties of materials and products Crystallinity
2009/12/2
Purpose: The main purpose of carry out research was estimate the influence thermal conditions of the mould on
properties of injection moulded parts.
Design/methodology/approach: The properties of st...
Properties of seam welds produced with different extrusion parameters
Mechanical properties Seam weld Extrusion Aluminum
2009/12/1
Purpose: This study focuses to investigate the effects of different extrusion parameters on microstructural
properties of seam (longitudinal) welds in aluminum extrusion profiles.
Design/methodolo...
Mechanical and service properties of low carbon steels processed by severe plastic deformation
severe plastic deformation (SPD) ECAP low carbon steel submicrocrystalline structure
2009/10/23
The structure and properties of the 0,09% C-Mn-Si-Nb-V-Ti, 0,1 %C-Mn-V-Ti and 0,09% C-Mo-V-Nb low-carbon steels were studied after cold equal-channel angular pressing (ECAP). ECAP leads to the formati...
THE EFECT OF COOLING RATE ON THE PROPERTIES OF ALLOYED CAST-IRON SIZING ROLL
alloyed grey cast iron sizing roll indefinite chill
2009/10/23
Directional heat transfer was investigated by temperature measurements in the casting and in the mould using
thermocouples. Measurements were performed in operating conditions during pouring, solidif...
Effects of Weld Zone Properties on Burst Pressures and Failure Locations
Weld zone e ects DOT-39 refrigerant cylinders Nonlinear FEA analysis Burst pressures
2009/10/10
The effects of weld zone properties on the burst pressures and burst failure locations of DOT-39 nonre-allable refrigerant cylinders were examined using the nite element analysis (FEA) approach. In o...
The Effects of Wall Properties on Peristaltic Transport of a Dusty Fluid
Peristaltic transport Wall properties Dusty fluid
2009/9/30
The interaction between peristaltic transport of a dusty fluid (Saffman’s model) in a 2-dimensional uniform channel and the elasticity of the channel’s flexible walls was studied under long wavelength...
Wave properties of the elastic half-space loaded by a periodic distribution of vibrating punches: An analytical approach
Wave properties Vibrating punches Analytical results
2010/9/27
An analytical approach is developed to study the wave properties of an elastic half-space subjected to harmonic vibrations applied on its free surface by a periodic array of rigid punches. In the fre...
Mechanical properties of friction stir butt-welded Al-5086 H32 plate
Friction stir welding Al-alloys Joint performance
2010/2/4
Findings: The experimental results indicated that the maximum tensile strength of the joints, which is about 75% that of the base plate, was obtained with a traverse speed of 200 mm/min at the tool ro...