Abstract: A method for making a profile with a micro-hole, in particular using a continuous composite extrusion process, comprises embedding, in a position in a matrix of the profile to be formed where a micro-hole is to be formed, a continuous wire having a shape and size consistent with that of the micro-hole; sawing a composite profile with the wire obtained by extrusion to a desired length; and removing the wire from the sawed composite profile using a predetermined physical or chemical method without changing the matrix of the composite profile so that the micro-hole of the predetermined size and shape is formed in the predetermined position in the profile. This method is simple, does not require any large, expensive, and sophisticated equipment, can produce continuous micro-holes of different specifications, and can be used in a wide variety of applications.

Abstract: A preparation method of a polyacrylonitrile-based three-dimensional macroporous carbon monolith. The process route of the method includes the following steps: completely dissolving polyacrylonitrile in an organic solvent, then carrying out drying, cutting, hot-pressing and punching to obtain a foam precursor, next, preparing a polyacrylonitrile foam with a controllable pore structure by a supercritical carbon dioxide batch foaming method, and finally carrying out pre-oxidation and carbonization treatment to obtain the polyacrylonitrile-based three-dimensional macroporous carbon monolith. The preparation method of the polyacrylonitrile-based three-dimensional macroporous carbon monolith of the present invention is simple, easy to control, environmentally friendly and low in cost, thus, the present invention is conducive to large-scale production of the carbon monolith.

Abstract: Disclosed is a processing technology for inhibiting weld coarse grains of magnesium alloy profiles, including the following steps: preparation of a magnesium alloy ingot, homogenization, scalping, extrusion, pre-stretching at room temperature, solution treatment, quenching, stretching correction, artificial aging, etc. The processing technology can effectively control the production of weld coarse grains in extrusion and heat treatment processes of magnesium alloy profiles, and all property indexes of final products are higher than standard requirements.

Abstract: Disclosed is a processing technology for inhibiting weld coarse grains of magnesium alloy profiles, including the following steps: preparation of a magnesium alloy ingot, homogenization, scalping, extrusion, pre-stretching at room temperature, solution treatment, quenching, stretching correction, artificial aging, etc. The processing technology can effectively control the production of weld coarse grains in extrusion and heat treatment processes of magnesium alloy profiles, and all property indexes of final products are higher than standard requirements.

Abstract: The present invention provides a single-beam double-physical-effect coordinating and distributing method applicable to uniform laser shock and application thereof, and belongs to the technical field of laser shock effect control. The present invention does not stipulate the specific adjusting and distributing mean, and only provides a coordinating principle and method. The present invention gives a universal and systematic method for setting absorption layer feature parameters applicable to mass laser shock uniform peening under a liquid constraint condition, so as to facilitate the relevant technician to quickly obtain the liquid constraint laser shock processing technology conforming to a distribution proportion of its double physical effects, thereby being beneficial to development and application of the laser shock peening treatment, and therefore having the good actual application value.

Abstract: A small angle laser scatterometer with a temperature-pressure-controllable sample cell and a characterization method, the scatterometer formed by sequentially arranging a laser source, an adjustable attenuator, a beam expanding lens, a polarizer, the temperature-pressure-controllable sample cell, an analyzer, a transmission-type projection screen and an image acquisition device. The temperature-pressure-controllable sample cell is composed of a visual autoclave, a temperature control component, a rapid cooling component and a pressure control component. An evolution process of microstructures of polymer materials in specific atmosphere and rapid temperature and pressure changing environments on a scale of 0.5 ?m to 10 ?m.

Abstract: A microscopic observation system with a temperature-pressure-controllable sample cell and methods. The system can be configured to perform common optical microscopic observation and polarizing microscopic observation. The system is composed of a visual autoclave, a temperature control component, a rapid cooling component, a pressure control component and an optical imaging system, and can be configured to observe an evolution process of microstructures of polymer materials in specific atmosphere and rapid temperature and pressure changing environments in a scale of 1 ?m-1 cm. A novel characterization means for researching a condensed state evolution law of polymers in high-pressure environments, and also a new thought for deep reveal of the polymer crystallization mechanism and regulation of crystallization and phase separation behaviors of the polymer materials.

Abstract: A method for making a profile with a micro-hole, in particular using a continuous composite extrusion process, comprises embedding, in a position in a matrix of the profile to be formed where a micro-hole is to be formed, a continuous wire having a shape and size consistent with that of the micro-hole; sawing a composite profile with the wire obtained by extrusion to a desired length; and removing the wire from the sawed composite profile using a predetermined physical or chemical method without changing the matrix of the composite profile so that the micro-hole of the predetermined size and shape is formed in the predetermined position in the profile. This method is simple, does not require any large, expensive, and sophisticated equipment, can produce continuous micro-holes of different specifications, and can be used in a wide variety of applications.

Abstract: A preparation method of a polyacrylonitrile-based three-dimensional macroporous carbon monolith. The process route of the method includes the following steps: completely dissolving polyacrylonitrile in an organic solvent, then carrying out drying, cutting, hot-pressing and punching to obtain a foam precursor, next, preparing a polyacrylonitrile foam with a controllable pore structure by a supercritical carbon dioxide batch foaming method, and finally carrying out pre-oxidation and carbonization treatment to obtain the polyacrylonitrile-based three-dimensional macroporous carbon monolith. The preparation method of the polyacrylonitrile-based three-dimensional macroporous carbon monolith of the present invention is simple, easy to control, environmentally friendly and low in cost, thus, the present invention is conducive to large-scale production of the carbon monolith.

Abstract: A microscopic observation system with a temperature-pressure-controllable sample cell and methods. The system can be configured to perform common optical microscopic observation and polarizing microscopic observation. The system is composed of a visual autoclave, a temperature control component, a rapid cooling component, a pressure control component and an optical imaging system, and can be configured to observe an evolution process of microstructures of polymer materials in specific atmosphere and rapid temperature and pressure changing environments in a scale of 1 ?m-1 cm. A novel characterization means for researching a condensed state evolution law of polymers in high-pressure environments, and also a new thought for deep reveal of the polymer crystallization mechanism and regulation of crystallization and phase separation behaviors of the polymer materials.

Abstract: A small angle laser scatterometer with a temperature-pressure-controllable sample cell and a characterization method, the scatterometer formed by sequentially arranging a laser source, an adjustable attenuator, a beam expanding lens, a polarizer, the temperature-pressure-controllable sample cell, an analyzer, a transmission-type projection screen and an image acquisition device. The temperature-pressure-controllable sample cell is composed of a visual autoclave, a temperature control component, a rapid cooling component and a pressure control component. An evolution process of microstructures of polymer materials in specific atmosphere and rapid temperature and pressure changing environments on a scale of 0.5 ?m to 10 ?m.

Abstract: A core-inlaid high manganese steel frog structure includes a high manganese steel frog body and an inlaid core. The high manganese steel frog body includes a swing track connecting section, a frog central section and a frog-and-track connecting section. The wing track connecting section and the frog-and-track connecting section are respectively arranged on front and rear ends of the frog central section. A mounting groove for cooperatively mounting the inlaid core is arranged in front of the frog central section. The high manganese steel frog body and the inlaid core are detachably connected. The high manganese steel frog body and the inlaid core are detachably connected, which facilitates replacement of vulnerable parts, saves cost, and meets user requirements. The material and production procedure for the high-manganese steel frog body can be different from those for the inlaid core, which helps further improve the performance of the inlaid core.