The Experts below are selected from a list of 1347 Experts worldwide ranked by ideXlab platform

Eddy S Siradj - One of the best experts on this subject based on the ideXlab platform.

  • development of Steel Wire Rope reinforced aluminium composite for armour material using the squeeze casting process
    Advanced Materials Research, 2011
    Co-Authors: Dwi Rahmalina, Bambang Suharno, Bondan Tiara Sofyan, Eddy S Siradj
    Abstract:

    Steel Wire Rope – reinforced aluminium composite - has been developed to improve the ballistic pRoperties and mobility of armour material. Critical to obtaining ballistic resistance is that the materials must be sufficiently hard and strong, especially at the surface where a projectile will first make impact. To obtain this resistance, aluminium alloys can be strengthened by adding Cu and Mg. This research studied the ballistic pRoperties of aluminium composites with varied Cu and Mg content. The matrix used in this study was an Al-7Si master alloy with 0.08-1.03 wt. % Mg and 0.05-3.75 wt. % Cu, both independently and in combination. A high carbon Steel Wire Rope was used as strengthening material. The samples were produced through the squeeze casting process with a pressure of 1 MPa at semi-solid melting temperatures of 590-610 °C. The slab was then rolled for 10 % reduction to increase the hardness. Ballistic testing was performed in accordance with ASTM F1233 by using a 9 mm calibre projectile and 900 direction. Micro structural observation was conducted in the as-cast and ballistic samples, performed with optical microscope and scanning electron microscope (SEM). The results showed that squeeze casting may improve interfacial wettability and reduce void. The increase in Mg resulted in the decline of interfacial voids, but Cu addition tended to increase them. The aluminium armour was able to withstand a 9 mm calibre projectile, although some cracks were visible. The Wire Rope was not effective in stopping the penetration of a 7.62 mm calibre projectile.

  • Development of Steel Wire Rope – Reinforced Aluminium Composite for Armour Material Using the Squeeze Casting Process
    Advanced Materials Research, 2011
    Co-Authors: Dwi Rahmalina, Bambang Suharno, Bondan Tiara Sofyan, Eddy S Siradj
    Abstract:

    Steel Wire Rope – reinforced aluminium composite - has been developed to improve the ballistic pRoperties and mobility of armour material. Critical to obtaining ballistic resistance is that the materials must be sufficiently hard and strong, especially at the surface where a projectile will first make impact. To obtain this resistance, aluminium alloys can be strengthened by adding Cu and Mg. This research studied the ballistic pRoperties of aluminium composites with varied Cu and Mg content. The matrix used in this study was an Al-7Si master alloy with 0.08-1.03 wt. % Mg and 0.05-3.75 wt. % Cu, both independently and in combination. A high carbon Steel Wire Rope was used as strengthening material. The samples were produced through the squeeze casting process with a pressure of 1 MPa at semi-solid melting temperatures of 590-610 °C. The slab was then rolled for 10 % reduction to increase the hardness. Ballistic testing was performed in accordance with ASTM F1233 by using a 9 mm calibre projectile and 900 direction. Micro structural observation was conducted in the as-cast and ballistic samples, performed with optical microscope and scanning electron microscope (SEM). The results showed that squeeze casting may improve interfacial wettability and reduce void. The increase in Mg resulted in the decline of interfacial voids, but Cu addition tended to increase them. The aluminium armour was able to withstand a 9 mm calibre projectile, although some cracks were visible. The Wire Rope was not effective in stopping the penetration of a 7.62 mm calibre projectile.

Jianjun Zhao - One of the best experts on this subject based on the ideXlab platform.

  • Structure and character analysis of a new type of Steel Wire Rope NDT detector apparatus
    2009 IEEE International Conference on Mechatronics and Automation ICMA 2009, 2009
    Co-Authors: Xiuli Chai, Zhihua Gan, Yang Lu, Jianjun Zhao
    Abstract:

    A new type of Steel Wire Rope non-destructive testing (NDT) detector apparatus is presented. It is composed of the magnetizer and the sensor array. The magnetizer, consisting of permanent magnets and armature, is used for magnetizing the Steel Wire Rope to saturation. The high sensitive and giant magneto-resistance (GMR) micro sensor is adopted to inspect the inner and outer flaws of the Steel Wire Rope. Some giant magnetoresistance sensors constitute the sensor array, distributed homogeneously and symmetrically. The differential signals are picked up and outputted for the following signal interpretation. In contrast with previous detectors, the detector can attain the precise and high sensitive measurement of the flaws. In the experiments, the Steel Wire Rope with its diameter being 11 mm is adopted, and its surface flaws are detected. The experiment results show that qualitative detection of surface defects is attained. The apparatus can also be used for the flaw test of the ferromagnetic bars.

Jiang Min - One of the best experts on this subject based on the ideXlab platform.

  • tightening device of suspension bridge type belt conveyor
    2015
    Co-Authors: Wang Madou, Guan Yongxiang, Xie Wu-jie, Qin Lei, Jiang Min
    Abstract:

    The utility model discloses a tightening device of a suspension bridge type belt conveyor. The tightening device of the suspension bridge type belt conveyor comprises a suspension bridge frame and a belt conveyor arranged on the suspension bridge frame, the belt conveyor is composed of an annular belt, rollers arranged at the upper and lower ends of the annular belt, and a belt drive device arranged at the middle of the annular belt, the roller at the lower end of the belt conveyor is connected with a sliding trolley, the sliding trolley is connected with a Steel Wire Rope, the Steel Wire Rope winds a guide pulley set, and the end of the Steel Wire Rope is connected with a balancing weight. The tightening device is arranged at the tail of the belt conveyor, the tightening mode is changed into tail tightening from middle tightening, and the tension loss is avoided; the tightening device simultaneously provides force to the upper belt and lower belt to duly tighten the belt so as to avoid the dead press and ore accumulation of the belt and guarantee the normal and stable running of an ore crushing system.

  • combination device utilizing light type railway to carry heavy device
    2013
    Co-Authors: Zhang Guocheng, Yao Nan, Li Hailiang, Zhang Chunwang, Liu Shuangzhen, Jiang Min, Wang Hongbing, Zhang Huai, Wang Qing, Dong Degang
    Abstract:

    The utility model provides a combination device utilizing a light-type rail to carry a heavy device. The combination device utilizing the light-type rail to carry the heavy device aims at saving manpower and materials and protecting finished products, and solves the problems that a large-scale lifting device can not be used for carrying the heavy device in a special zone. The combination device utilizing the light-type rail to carry the heavy device comprises a traction device, a load bearing trolley, the light-type rails, steering pulleys and a Steel Wire Rope. The combination device utilizing the light-type rail to carry the heavy device is characterized in that the steering pulleys are installed at the bottom of the load bearing trolley, the steering pulleys walk on the light-type rails, the light-type rails comprise angle rails and main rails, the angle rails are fixed with the main rails in an anchoring mode through bolts, the main rails are composed of U-Steel in a lap joint mode, the angle rails are composed of U-Steel welded in an angular mode, one end of the Steel Wire Rope is connected with the load bearing trolley, the other end of the Steel Wire Rope is connected with the traction device, and the traction device is a small-scale winding machine and provides traction motive power for the load bearing trolley.

Dwi Rahmalina - One of the best experts on this subject based on the ideXlab platform.

  • development of Steel Wire Rope reinforced aluminium composite for armour material using the squeeze casting process
    Advanced Materials Research, 2011
    Co-Authors: Dwi Rahmalina, Bambang Suharno, Bondan Tiara Sofyan, Eddy S Siradj
    Abstract:

    Steel Wire Rope – reinforced aluminium composite - has been developed to improve the ballistic pRoperties and mobility of armour material. Critical to obtaining ballistic resistance is that the materials must be sufficiently hard and strong, especially at the surface where a projectile will first make impact. To obtain this resistance, aluminium alloys can be strengthened by adding Cu and Mg. This research studied the ballistic pRoperties of aluminium composites with varied Cu and Mg content. The matrix used in this study was an Al-7Si master alloy with 0.08-1.03 wt. % Mg and 0.05-3.75 wt. % Cu, both independently and in combination. A high carbon Steel Wire Rope was used as strengthening material. The samples were produced through the squeeze casting process with a pressure of 1 MPa at semi-solid melting temperatures of 590-610 °C. The slab was then rolled for 10 % reduction to increase the hardness. Ballistic testing was performed in accordance with ASTM F1233 by using a 9 mm calibre projectile and 900 direction. Micro structural observation was conducted in the as-cast and ballistic samples, performed with optical microscope and scanning electron microscope (SEM). The results showed that squeeze casting may improve interfacial wettability and reduce void. The increase in Mg resulted in the decline of interfacial voids, but Cu addition tended to increase them. The aluminium armour was able to withstand a 9 mm calibre projectile, although some cracks were visible. The Wire Rope was not effective in stopping the penetration of a 7.62 mm calibre projectile.

  • Development of Steel Wire Rope – Reinforced Aluminium Composite for Armour Material Using the Squeeze Casting Process
    Advanced Materials Research, 2011
    Co-Authors: Dwi Rahmalina, Bambang Suharno, Bondan Tiara Sofyan, Eddy S Siradj
    Abstract:

    Steel Wire Rope – reinforced aluminium composite - has been developed to improve the ballistic pRoperties and mobility of armour material. Critical to obtaining ballistic resistance is that the materials must be sufficiently hard and strong, especially at the surface where a projectile will first make impact. To obtain this resistance, aluminium alloys can be strengthened by adding Cu and Mg. This research studied the ballistic pRoperties of aluminium composites with varied Cu and Mg content. The matrix used in this study was an Al-7Si master alloy with 0.08-1.03 wt. % Mg and 0.05-3.75 wt. % Cu, both independently and in combination. A high carbon Steel Wire Rope was used as strengthening material. The samples were produced through the squeeze casting process with a pressure of 1 MPa at semi-solid melting temperatures of 590-610 °C. The slab was then rolled for 10 % reduction to increase the hardness. Ballistic testing was performed in accordance with ASTM F1233 by using a 9 mm calibre projectile and 900 direction. Micro structural observation was conducted in the as-cast and ballistic samples, performed with optical microscope and scanning electron microscope (SEM). The results showed that squeeze casting may improve interfacial wettability and reduce void. The increase in Mg resulted in the decline of interfacial voids, but Cu addition tended to increase them. The aluminium armour was able to withstand a 9 mm calibre projectile, although some cracks were visible. The Wire Rope was not effective in stopping the penetration of a 7.62 mm calibre projectile.

Xiuli Chai - One of the best experts on this subject based on the ideXlab platform.

  • Structure and character analysis of a new type of Steel Wire Rope NDT detector apparatus
    2009 IEEE International Conference on Mechatronics and Automation ICMA 2009, 2009
    Co-Authors: Xiuli Chai, Zhihua Gan, Yang Lu, Jianjun Zhao
    Abstract:

    A new type of Steel Wire Rope non-destructive testing (NDT) detector apparatus is presented. It is composed of the magnetizer and the sensor array. The magnetizer, consisting of permanent magnets and armature, is used for magnetizing the Steel Wire Rope to saturation. The high sensitive and giant magneto-resistance (GMR) micro sensor is adopted to inspect the inner and outer flaws of the Steel Wire Rope. Some giant magnetoresistance sensors constitute the sensor array, distributed homogeneously and symmetrically. The differential signals are picked up and outputted for the following signal interpretation. In contrast with previous detectors, the detector can attain the precise and high sensitive measurement of the flaws. In the experiments, the Steel Wire Rope with its diameter being 11 mm is adopted, and its surface flaws are detected. The experiment results show that qualitative detection of surface defects is attained. The apparatus can also be used for the flaw test of the ferromagnetic bars.