在线一本码道高清

Manufacturing and application of other products
  • Construction method and process of solitary blasting
    The invention relates to shield construction, in particular to a solitary stone blasting construction method. During the rock breaking process of the shield tunneling machine, the solitary rock is high in strength and widely distributed, with a maximum strength of 110mpa. If the holding power between the solitary rock and the surrounding soil is insufficient, the lone rock will rotate with the cutter head and cause damage to the cutter head and tools. Moreover, the use of the cutter head to break the rock requires a large thrust, which requires high structural strength of the reaction force frame and high cost. In addition, if the size of the broken stone is larger than the grid ...
  • Pre-split blasting combined charge structure, method and process
    The invention relates to pre-split blasting in open-air step blasting, and in particular to a pre-split blasting combined charge structure and method. In large hydropower projects and open-air bench blasting, special blasting technology is often used in order to form slopes. The main purpose is to reduce the damage of explosives to slopes or retain rock mass, protect the integrity of slopes, and reduce the slopes. Maintenance costs. It is generally achieved by using low-power explosives or using uncoupled charging, where uncoupled loading ...
  • Ice melting method, ice melting device and process of blasting hole bottom ice column
    The invention belongs to ice melting at the bottom of a blast hole, and particularly relates to an ice melting method and an ice melting device at the bottom of an blast hole. Medium and deep hole bench blasting is one of the main production processes of open pit mines. In the high and cold areas, due to the extremely low temperature, the blasting holes that have been drilled can easily freeze into ice due to groundwater or surface seepage. The stagnant water at the bottom of the blast hole is mainly the seepage of the rock formation (the underground aquifer conducts water), the weathered water of the slope rock mass (the surface ...
  • Smooth surface blasting method and process for vertical shaft excavation in high stress environment
    The invention relates to a smooth surface blasting method for vertical shaft excavation in a high stress environment, which belongs to mine development. The excavation and mining depth of resources continue to increase. As the mining depth increases, the problems faced also gradually increase. For example, high stress conditions in deep environments. As the mining depth increases, the original rock stress and tectonic stress of the mine continue to strengthen And grows linearly. And blasting operations under high stress conditions can easily cause rock bursts (impact ground pressure ...
  • Method and process for determining delay time of blasting adjacent rows of gun holes
    The invention relates to a blasting technology, and particularly to a method for determining the optimal delay time of adjacent rows of blast holes in a step blasting of an open-pit mine. In the open-air blasting, in order to achieve the best blasting effect, we need to use the differential blasting technology, that is, the delayed initiation of the rear blasthole. The problem is too high. At the same time, the differential blasting can also effectively reduce the blasting vibration on the opposite side ...
  • Controlled blasting method and process for cutting well formed by deep-hole extrusion blasting
    The invention relates to rock drilling and blasting, in particular to a controlled blasting method for forming a cutting well by deep-hole extrusion blasting. At present, mines with middle-deep hole blasting and mining are used. Generally, 1.5-2.0m square-cylinder vertical cutting wells are set up in the stope section mine to compensate for the free compensation space of the caved-in rock during the mining and drawing process. The section height of the middle and deep hole blasting stope is generally between 12-15m, and the height of the cutting well is consistent with the height of the section mine, which is 12 ...
  • Device for transferring ammunition or explosives
    The invention belongs to explosives transfer, and particularly relates to a device for transferring ammunition or explosives. The safety and reliability of ammunition transportation has been widely concerned by countries all over the world. With the rapid improvement of the army's mobility, the rapid and safe supply of ammunition has become an important factor affecting the generation of combat effectiveness. Whether in road or water transportation, the ammunition box is always vulnerable to shock and vibration. The existing ammunition and explosive ...
  • Manufacturing method of reusable launch vehicle landing buffer device
    The invention belongs to a soft landing slow of a launch vehicle, and particularly relates to a reusable launch vehicle landing buffer device. The lander will experience a large impact acceleration at the moment of landing. If the impact load is too large, the detection equipment on the lander will be damaged, resulting in the failure of the detection mission. Therefore, it is of great significance for the development of space science and technology to realize the soft landing of the lander on the surface of the planet. At present, the landing buffer can be roughly divided ...
  • Manufacturing method of environmental protection firecracker with paper tube structure
    The invention relates to an environmentally-friendly firecracker with a paper tube structure, which belongs to the production of fireworks. In the prior art, traditional firecrackers adopt a structure in which several small bobbins are connected in series by a lead wire, and then a plastic film is wrapped around the outer glue. The drug components in each bobbin are mainly potassium perchlorate and potassium nitrate. , Metal powder and sulfur, etc., its sensitivity is high, explosion accidents are prone to occur during production, transportation, storage, extremely low safety, and ...
  • Manufacturing method of outdoor high-altitude shooting robot
    The invention relates to an outdoor high-altitude shooting robot, which belongs to a shooting robot. At present, domestic flexible target shooting robots have appeared on the ground, which are characterized by flexible maneuverability, ready to shoot at any time, and high stability. Occasion of moving object at high altitude. If the application number is cn201910091265.x ...
  • Manufacturing method of arrow target device
    The invention belongs to sports equipment and relates to an arrow target device. Archery refers to the sport that uses the elasticity of the bow to shoot the arrow. The accuracy of the game within a certain distance generally requires human eyes to determine the performance of the target. There is a certain distance from the archery to the target. Reporting targets in the past was not only time consuming, inefficient, but also dangerous. China's patent (public number: cn1955632; public ...
  • Manufacturing method of police anti-riot intelligent array multi-pulse microwave transmitter
    The invention relates to a police anti-riot intelligent array multi-pulse microwave transmitter, which belongs to police equipment. At present, during the counter-terrorism and anti-violence process, law enforcement officers of the public security front in our country are stationed at the police station or at the scene of anti-terrorism and anti-violence. When it comes to terrorists, police officers cannot correctly judge the use of firearms to combat violence and terrorists. Summary of the invention ...
  • Explosion-proof layer structure and its manufacturing method and process
    The invention relates to protective equipment, in particular to an explosion-proof layer structure and a manufacturing method thereof. Public safety is the cornerstone of national security and social stability. It is the basic guarantee for people to live and work in peace. It is a major strategic issue for building a harmonious society. Production safety is an important part of ensuring urban public safety. With the rapid development of economy and society, human protection technology in safety production gradually ...
  • Manufacturing method of wire rope quick-release bulletproof vest
    : The present invention relates to a wire rope quick-release bulletproof vest. : Bulletproof clothing is "a kind of clothing that can absorb and dissipate the kinetic energy of warheads and fragments, prevent penetration, and effectively protect the protected part of the human body." On the one hand, the performance requirements of bulletproof clothing means that without affecting the bulletproof ability, the bulletproof clothing should be as light and comfortable as possible, and people can still perform various actions more flexibly. On the other hand, clothing is a breeze for the "clothing-human" system ...
  • Manufacturing method of direct-viewing mirror with inclined surface type
    The invention belongs to observation equipment, and particularly relates to a direct-viewing mirror with a bevel type. Modern warfare is a confrontation between equipment systems. A single weapon must be integrated into the equipment system to achieve maximum effectiveness. The information capabilities of weapons and equipment determine the effectiveness of operations. Weapons and equipment that lack information capabilities cannot contribute to the system and will be phased out. Artillery computer system integration application artillery attitude measurement, autonomous positioning, firing calculation, autonomous ...
  • Manufacturing method of dehulling card flap for reducing fluid resistance
    The invention belongs to the field of underwater launching, and in particular relates to a shelling flap that reduces fluid resistance. With the development and application of new technologies, modern naval battles have imposed new requirements on various types of naval offensive and defensive weapons and equipment. The range of a large number of ammunition weapons has extended from the air and water to underwater. The underwater weapons have high penetration capabilities and concealment. Good sex has become the focus of the development of naval weapons and equipment of various countries. Supercavity projectile is a new concept weapon using the principle of supercavity drag reduction, ...
  • Device, method and process for handheld spacecraft debris collision simulation launch
    The invention belongs to aerospace, and relates to a spacecraft debris collision simulation launching device, in particular to a handheld spacecraft debris collision simulation launching device and method. With the development of the space industry in various countries, the number of space debris is increasing, and the safe operation of on-orbit spacecraft is seriously threatened. In order to realize impact source localization, impact damage pattern recognition, and damage degree assessment technology, it is necessary to first obtain ultra-high-speed impact acoustic emission signals. Broken on space ...
  • Manufacturing method of handheld long-distance biological tear gas launcher
    The invention relates to a handheld defense device used by police or security personnel, in particular to a handheld long-range biological tear gas launcher. Tear gas is a non-lethal bomb that releases the tear agent filled in the body of the bomb to stimulate the eyes and upper respiratory tract system of a living target and temporarily loses its resistance. Countries around the world have always attached importance to the development and production of tear gas equipment, and China started relatively late. With national martial ...
  • Manufacturing method of electromagnetic thrust transmitting device
    The present invention relates to electromagnetic orbits, and in particular to an electromagnetic thrust transmitting device. At present, the electromagnetic rail gun concept has been proposed for a long time, but it has not been put into practical use for many years. This is because there are still some problems with the electromagnetic rail gun that have not been well solved. One of them is the system will A large amount of heat is generated, which causes ablation wear or even failure on the track, which seriously affects the service life of the material. Summary of the invention ...
  • Manufacturing method of cross bow with disc spring
    The present invention relates to a weapon that does not use explosives or flammable propellant to launch a projectile, in particular to a durable and long-life crossbow with a disc spring. The crossbow is a cold weapon that does not need to be propelled by gunpowder. After a long period of improvement, the crossbow has various forms. As shown in FIG. 6, an existing crossbow includes a body 60 that is combined with A first arch arm 70a and a second arch arm 7 of the body 60 ...
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