The Significance of Machining Accuracy in Refrigerator Compressor Cylinder Blocks: Traditional Shaving vs. Sequential Shaving
In the world of refrigeration, the compressor is the heart of the system, and its performance directly impacts the overall efficiency and reliability of the appliance. Within the compressor, the cylinder block is a critical component that plays a vital role in the refrigeration process. The manufacturing cost, treatment rate, and quality of treatment of the cylinder block directly determine the competitiveness of the manufacturer of refrigerator compressors.
As the saying goes, "If you want to do a good job, you must first refine your tools." To ensure higher treatment accuracy, faster treatment rhythms, and stronger competitiveness of products, it is crucial to choose competitive treatment equipment.
In the quest for better surface shape, geometric shape, and dimensional precision, machining processes such as shaving have become an essential part of the manufacturing process. Two primary methods are widely employed in the industry: traditional shaving and sequential shaving.
Traditional Shaving: A Proven Method
Traditional shaving, also known as grinding, involves applying a certain supply pressure to the inner wall of the treatment hole while making rotation and continuous alternation. The supply of shaving oil stones can be carried out in two ways: fixed pressure supply and quantitative feed. The mainstay and alternative movement of the grinder continue until the treatment reaches the size of the whole, typically taking around 30 seconds to 1 minute per room or more.
Sequential Shaving: A Game-Changer in Machining Accuracy
Sequential shaving is a treatment method that utilizes a set of diameter-diameter heads (or cubic boron nitride) in order of size and size. The sequential shaving process is developed on the basis of traditional shaving. The main characteristics of sequential shaving are their sequential shaving heads and real grooving process. Compared to traditional shaving, the sequential shaving head is placed in advance for the final treatment size required by the room. Consequently, the sequential shaving process requires only 1 to 3 alternative moves to finish. The thickness of each shaving head eliminates the metal layer is 2 to 20 μm.
After sequential shaving, the shape and dimensional precision of the hole can be improved significantly, with surface roughness values reaching RA0.2. This processing method does not require tools to supply tools, processing beats are rapid, and it also improves the accuracy of the hole position to some extent.
Market Overview: A Growing Demand for Sequential Shaving Machines
In the domestic market, users who rely on imports to use this type of machining equipment, massive machine tools with high prices, machine tool accessories, and after-sales services have scared off imported sequential shaving machines. However, this scenario is changing rapidly. In 2008, the third branch of Beijing First Machine Tool Factory launched its first domestic sequential shaving machine tool, which has been well-received by many users and achieved several sales.
The machine tools produced by this company use SSI Siemens servomotors in Germany and the CNC 810D system to achieve flexible speed adjustment and real-time adjustment of machining time, with precise positioning and rapid rotation speed and the vision of the ball and the vision of the landing ball reaching 0.69). The spindle box, improvement tools, tool joints, and parts all adopt an entirely floating structure, which can ensure the accuracy of machining to 0.001 mm, cylindrical to 0.002 mm, and surface roughness to RA0.2 μm.
These machine tools also adopt a modular design, providing users with the best treatment solution according to the requirements of the user process and user parts. The machine tool will be exhibited at the 5th Exhibition China CNC Machine Tool on April 21, 2008.
Conclusion
In conclusion, the machining accuracy of piston holes and crankshaft holes in the cylinder block of refrigerator compressors plays a crucial role in determining the competitiveness of the manufacturer. Traditional shaving and sequential shaving are two primary methods employed in the industry, with the latter offering higher treatment accuracy, faster treatment rhythms, and stronger competitiveness. As the market demand for sequential shaving machines grows, domestic manufacturers are stepping up to the challenge, offering high-quality machine tools that can compete with their international counterparts. The future of machining in the refrigerator compressor industry looks promising, with innovative technology and cutting-edge manufacturing processes driving the industry forward.


















