Fasteners, commonly referred to as standard parts in the market, are a general term for mechanical components used to join two or more parts together. They are widely applied across various industries such as machinery, equipment, vehicles, ships, railways, bridges, buildings, tools, and instruments. According to Luo Baihui, Secretary General of the International Model Association, with the development of China's manufacturing industry, fasteners have become one of the most traded products, meeting international standards. This plays a crucial role in promoting Chinese fastener enterprises globally and encouraging their participation in international cooperation and competition.
Each type of fastener has specific requirements regarding specifications, dimensions, tolerances, weights, performance, surface conditions, marking methods, and packaging, which are defined in several national or industry standards. These include systems like the English, German, and American standards.
The machinery industry is one of the primary users of fasteners. However, due to China's late recognition of the importance of basic mechanical parts, there has been a long-term lack of investment, leading to a weak foundation and low technical level. With the advancement of mainframe technology, the bottleneck caused by the lag in basic mechanical components has become increasingly evident. Although the government has provided some support in areas like technology introduction, upgrades, and R&D, there is still a significant gap compared to domestic demand and international standards. This is reflected in limited product variety, unstable quality, high early failure rates, and poor reliability.
As key basic components in the machinery industry, fasteners face higher demands as the industry develops. Luo Baihui notes that while common standard fasteners are oversupplied domestically, high-end fasteners—such as those with special properties, high-temperature resistance, or titanium-plastic composites—are in short supply and still rely heavily on imports. The National Machinery Bureau has classified "common standard fasteners" as restricted development products, while "high-strength shaped fasteners" are encouraged for development. As China's industrialization and technological progress continue, the use of high-strength fasteners is gradually increasing.
During the 12th Five-Year Plan period, the number of construction machinery products like loaders, excavators, and road rollers is expected to reach 6 million units, with annual sales around 50,000 units. Based on this, the annual demand for high-strength fasteners is estimated at 20,000 to 30,000 tons. Fasteners, as essential components in China’s equipment manufacturing industry, also serve as a critical foundation across all sectors of the national economy. While maintaining cost advantages, the industry must rely on new strengths such as technological innovation, improved quality, and better cost-performance to achieve sustainable growth. It is projected that by 2015, the total output of the industry will reach 7.5 to 8 million tons. With growing exports, the industry's export volume is expected to rise, with an average annual growth rate of 8% to 10%, reaching 30 billion yuan by 2015.
Domestic fastener manufacturers should look ahead and seize opportunities from national key projects such as high-speed rail, aerospace, highways, and airports. These initiatives offer a chance for companies to move toward high-end markets. For instance, Boeing plans to add 3,400 aircraft over the next 20 years, and the National Development and Reform Commission has invested 800 billion yuan to build rail transit in six cities. With 36 urban rail projects planned, the new rail mileage will reach 6,560 kilometers, creating a demand for rail fasteners worth 5.5 to 7 billion yuan. These large-scale projects will significantly boost the demand for high-end fasteners like high-strength and titanium alloy components, making it possible to shed the "low-end" label.
TOF Ranging Sensor
TOF (Time of Flight) ranging sensor is a type of sensor that measures distance by calculating the time it takes for a light signal to travel from the sensor to the target object and back. It uses laser or infrared light to emit a signal and measures the time it takes for the signal to return to the sensor. By knowing the speed of light, the sensor can accurately calculate the distance between itself and the target object.
TOF ranging sensors are commonly used in various applications such as robotics, autonomous vehicles, industrial automation, and augmented reality. They provide accurate distance measurements and can be used for object detection, collision avoidance, gesture recognition, and mapping.
Compared to other distance measurement technologies like ultrasonic sensors or infrared proximity sensors, TOF ranging sensors offer several advantages. They provide higher accuracy, faster response times, and can work in various lighting conditions. They are also capable of measuring longer distances and can be used for both indoor and outdoor applications.
Overall, TOF ranging sensors are a versatile and reliable technology for measuring distances and are widely used in many industries for a range of applications.Long Distance Laser Sensor,TOF Sensor,TOF Laser Distance Sensor,Long Range Distance Sensor,Laser Range Finder Sensor
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