admin

      With the development of society, the production and consumption of cars grows sharply. However, this brings problems of fuel consumption, environmental disruption and potentially safety hazard at the same time when it brings convenience to people. According to statistics, 60% of the fuel that combusted by car is for the vehicle weight […]

      At the end of the 20th century, the national development strategy went smoothly and presented an upward trend. In particular, the proposal and development of the “921” project greatly improved China’s comprehensive national strength and international status. The boom in high-tech  fields means that there is a pressing demand for new technologies,

      Aluminum is widely used in ship building industry for its low density, high specific strength, good plasticity and toughness, good thermal and electrical conductivity, and strong corrosion resistance. With high strength and ductility, the composite material composed of steel possesses both physical and chemical properties and good comprehensive properties. Therefore, it is

      Titanium alloy is a new metal developed in recent years and is widely used in various industries. Because of its low thermal conductivity, cutting emperature is much higher. For example, it is higher almost twice than 45 steel in the same cutting force.　　       At the same time, due to

      The protection requirements of titanium and titanium alloy welding are very strict. When the carbon content of the welding seam is 0.55%, the plasticity of the welding seam will almost disappear and become a very brittle material. Moreover, the thermal treatment after welding cannot eliminate this brittleness.       There are

      Pipe cutting and groove machining; Pipe cutting and groove processing should be carried out in a special workplace using mechanical processing methods. During processing, non-polluting medium clean water should be used for cooling to prevent oxidation. Machining tools should be dedicated and kept clean to prevent iron contamination. The finished pipe mouth

      I. Traditional Plasma Rotary Electrode Technology (PREP)       Traditional plasma rotary electrode technology (PREP) was invented by Nuclear Metals/Starmet and later acquired by TIMET. Traditional PREP technology using rod electrode as cathode, transferred arc plasma torch as the anode, stimulate the argon gas that the ionization of argon ion of

      The brake housing is the rack of the brake device on which the brake disc and cylinder block are mounted. The brake housing is basically a cylinder body with a flange. The torque of the brake is transmitted to the landing gear by the flange of the brake housing or the torque

      Rolls-Royce, a British aero-engine manufacturer, has announced that it has begun work on blades for a demonstration prototype of its new UltraFan engine. The blade, which has a diameter of 3.56m, is made of hundreds of layers of carbon fibre and high performance toughening resin at high temperatures and pressures, while the

      The geometric accuracy deviation of titanium alloy bar is mainly caused by the elastic complex after the hot forming, the geometric precision does not meet the quality requirements, must carry on the heavy manual dressing.       TC4 titanium alloy has a series of advantages, such as excellent corrosion resistance, low