29 degree fully threaded screw is a common mechanical transmission element, which is widely used in various machinery and equipment. Its processing technology is an important technology in the field of machinery manufacturing, involving many links and processes. This article will introduce in detail the processing technology of 29 degree full-thread screw, including material selection, heat treatment, turning, threading, surface treatment and other links, and its process characteristics and development trends.
First, the selection of materials.
The material selection of the 29 degree fully threaded screw is an important part of the machining process. Commonly used materials are carbon steel, alloy steel, stainless steel, etc., among which carbon steel is one of the most commonly used materials. Choosing the right material needs to consider the working environment and performance requirements of the screw rod, such as corrosion resistance, high strength, wear resistance, etc. At the same time, the quality and purity of the material also need to be guaranteed to improve the mechanical properties and stability of the screw.
2. Heat treatment.
Heat treatment is an important part of 29 degree full thread screw processing, the purpose of which is to change the internal structure of the material and improve its mechanical properties and stability through heating, heat preservation and cooling. Common heat treatment processes include quenching, tempering, surface treatment, etc. Through a reasonable heat treatment process, the hardness and wear resistance of the screw can be significantly improved, and its service life can be prolonged.
3. Turning.
Turning is an essential process in the machining of 29-degree fully threaded screws, the main purpose of which is to machine the bar into the desired cylindrical shape and size. In the turning process, it is necessary to select the appropriate cutting parameters according to the specifications and requirements of the screw, such as cutting speed, feed, cutting depth, etc. At the same time, the quality and efficiency of turning operations can also be affected by factors such as tool, fixture, and machine accuracy.
Fourth, thread processing.
Threading is the core link in the processing of 29 degrees full thread screw, and its quality directly affects the assembly and use performance of the screw. Common threading methods include cutting, rolling, and thread rolling. In the process of threading, it is necessary to ensure that the size, shape and surface roughness of the thread meet the requirements, and at the same time, it is also necessary to control the parameters such as the rotation direction, pitch and tooth shape of the thread. In addition, in order to improve the wear and corrosion resistance of threads, surface treatment and coating treatment can be carried out after machining.
5. Surface treatment.
Surface treatment is the final process in 29 degree full thread screw machining, the purpose of which is to improve the corrosion resistance and appearance quality of the screw. Common surface treatment methods include shot peening, plastic spraying, galvanizing, etc. Choosing the right surface treatment method needs to be based on the working environment and appearance requirements of the screw rod. At the same time, the quality and effect of the surface treatment also need to be tested and controlled to ensure that the quality and performance of the screw rod meet the requirements.
VI. Conclusions. The machining technology of 29 degree fully threaded screw involves multiple links and technological processes, and it is necessary to comprehensively consider factors such as material selection, heat treatment, turning, threading and surface treatment. With the development of machinery manufacturing industry and the continuous progress of technology, the processing technology of 29 degree full thread screw is also constantly improving and perfecting. In the future, with the application of new materials and new processes, the processing technology of 29 degree full-thread screw will be more efficient, environmentally friendly and intelligent.