China Shenzhen Perfect Precision Product Co., Ltd. company news

The common types of wear in precision parts processing plant mainly include running wear, hard grain wear, surface fatigue wear, heat-like wear, phase change wear and hydrodynamic wear. Run-in wear is the wear of machinery under normal load, speed and lubrication conditions, this kind of wear is generally slow to develop, the short-term impact on the quality of processing is not significant.   Hard particle wear is due to the parts themselves dropped abrasive particles or hard particles from the outside into the machine tool, mixed into the processing area, subject to mechanical cutting or grinding, causing damage to the parts, which is more serious impact on the quality of processing.   Precision parts processing plant surface fatigue wear is machinery under the action of alternating load, resulting in tiny cracks or class point-like craters, thus causing damage to the parts. This type of wear is usually closely related to the pressure size, load characteristics, machine parts materials, size and other factors. Heat-like wear is the parts in the friction process generated by the heat on the parts, so that the parts have tempering softening, scorching creasing and other phenomena. This type of wear usually occurs in the high-speed and high-pressure sliding friction, wear is more destructive, and accompanied by the nature of accidental wear.   Corrosion wear is a chemical effect, that is, chemical corrosion caused by wear. When the surface of the parts and acid, alkali, salt liquid or harmful gas contact, it will be chemical erosion, or the surface of the parts and oxygen combined to generate easy to fall off the hard and brittle metal oxide and make parts wear.   Phase change wear is parts of long-term work at high temperatures, parts of the surface metal tissue grain heat becomes large, the grain boundaries around the oxidation, resulting in small gaps, so that parts fragile, wear resistance decreased, resulting in parts wear.

cnc four-axis machining in the process of processing will occur in many different situations, oil leakage is a frequent occurrence, to solve this problem, we must find out the root cause to solve things, for processing when the phenomenon of oil leakage is also seen, then which conditions will cause oil leakage? Oil change does not meet the requirements.   Cause cnc machining center oil leakage. The problems in oil change are mainly manifested in three aspects.   Oil change with too much oil, especially in the parts with rotating parts, due to the churning effect of rotating parts, more likely to appear oil overflow phenomenon.   For the parts with high viscosity lubricating oil, change the oil to low viscosity lubricating oil at will, it will make the corresponding box, shaft hole and other sealing performance is affected to a certain extent, sometimes will greatly reduce the sealing of these parts. When changing oil without cleaning the oil tank, the dirt in the oil tank may enter the lubrication system, blocking the oil path, wear seals caused by oil leakage.   The choice of lubrication system parts and adjustment is not appropriate and cause oil leakage:.   For example, cnc machining maintenance personnel maintenance selected too high pressure or too much oil out of the oil pump, or adjust the system pressure, relief valve, safety valve, pressure reducing valve and other pressure adjustment is too high, CNC machine tool lubrication system flow is too large, etc. with the oil return system and sealing system does not match, it will cause oil leakage.

Mechanical parts processing industry is the pillar of the national economy, with a very promising future. When processing precision mechanical parts, processing plants have many requirements and regulations for the processing process to ensure the qualification rate of the factory parts. So what are the factors that affect the processing of precision parts? Let's take a look below! Precision parts machining technology was proposed in the 1960s, it is to improve the performance, quality, service life and reliability of electromechanical products, as well as the cross-section of the bar can be an important method, precision machining refers to machining errors less than 0.1m, surface roughness less than RA0.025IXM processing technology, also known as sub-micron processing, precision parts machining level is the level of national manufacturing Important symbol.   In addition to the fluctuations of hydraulic and pneumatic sources in precision parts machining, the working environment has a great impact on the quality of processing, so the working environment is necessary to ensure the quality of processing, the working environment mainly temperature, purification and anti-vibration requirements.   Environmental temperature changes on the machine tool accuracy is particularly significant, including temperature changes due to processing errors caused by thermal factors, the total machining error (4070) % of dust can lead to surface scratches on the workpiece and affect the surface quality process, such as vibration occurs, the surface of the workpiece has been processed streaks or fabric traces, the surface finish is significantly reduced. With the high precision of parts processing requirements, the requirements of the processing environment more and more stringent, only from the precision parts processing on the impact of gas pressure fluctuations, ambient temperature changes, external and self-vibration three aspects of the analysis, the impact of precision parts processing factors are many, in order to improve the accuracy of ultra-precision machining, not only to understand the impact of factors, but also must master the solution.

Large cnc machining plant for the use of semi-closed-loop servo system cnc machining center, the existence of backlash will affect the positioning accuracy of the machine tool and repeat positioning accuracy, resulting in unstable machining accuracy, will lead to processing parts round is not round enough, square is not square enough, there is always contour error. First, the first mechanical adjustment, first tighten the screw lock nut, whether the screw shaft end coupling locking taper sleeve loose or coupling damage, each guide and paste plastic surface contact dye point is not uniform, re-precision with shovel, so that the contact surface dye point up to 80% or more, 0.02mm stopper does not enter for qualified. Second, check the screw nut preload force is too strong or too loose. Adjust the preload force and check the axial rotation value so that the error is not more than 0.005mm. Third, check the screw nut end face and combined surface is not vertical, combined with too loose, repair adjustment and repair processing, screw bearing seat preload force is too tight or too loose adjustment repair. Fourth, the ball screw manufacturing error is large or axial falloff, with the control system automatic compensation can also eliminate the gap, measuring and adjusting the screw falloff with the instrument, insufficient lubricating oil or no adjustment of each guide surface lubricating oil.

High standards and high requirements are the basic principles that must be observed in the precision parts processing industry, because the quality of precision parts is related to the performance of the use of equipment, there must be a high sense of responsibility, we have been in the high quality on the continuous innovation and progress. Precision parts processing factory how to improve the quality level on the progress? 1、Design ability   Precision parts processing to meet customer needs and make design suggestions, so that the customer's products are easier to process and stable quality. We mainly design and manufacture processing of various types of precision parts, and through the support of partners in a wide range of areas of design and manufacturing.   2、Production management   We make full use of the company's equipment and technical personnel to streamline and diversify process management to manage the processing and production of CNC machined parts in an ideal form. Using an excellent order management system and process management, we can quickly respond to shrink customer orders in terms of delivery time and achieve the goal of on-time delivery.

The isolation layer solution of hardware CNC is to carry out the solution to the rough surface of hardware CNC, especially in the whole process of hardware CNC machining and deep drawing, and carry out the isolation layer solution with lubricating liquid. Together with this process, it can make the hardware CNC from processing gradually to finish can maintain a high efficiency and smooth processing rate and precision, reduce the waste caused. What are the advantages of large CNC processing plant CNC for isolation layer processing? In the hardware CNC processing plant, the processing CNC machining parts must be lubricated with grease, which is indispensable in the whole process of deep drawing. The application of lubricating oil in the whole process of die casting is to better reduce the friction, enhance the service life of the mold shell, reduce the risk position of the thinning of the deep-drawing parts, and enhance the quality of the surface layer of hardware CNC. Thus, in the whole process of hardware CNC processing, sometimes how to use the isolation layer to solve the CNC gross?   This kind of isolation layer solution is used for the thinning and deep drawing process of CNC. In the thinning and deep drawing, the lubricating fluid is used to reduce friction and cool the mold shell. Dry friction should not be applied. In the whole process of pulling thinning, in addition to the normal application of lubricating fluid, there are some materials must also carry out the isolation layer solution. For example, in pulling cast iron parts, often in the embryo surface layer to carry out copper plating and pickling phosphating, in order to produce an isolation layer in the embryo surface layer and die shell and the middle, in the deep drawing process can store liquid and have self-lubricating characteristics; in pulling stainless steel plate, high-temperature carbon steel and other parts, die shell clamping is more serious, strengthen the compressive strength, and therefore must choose the isolation layer to solve the embryo surface layer.   In the technical professional CNC manufacturers, a clearer understanding of the entire process of CNC processing process, and its clearer grasp of the customer's idealization of the parts required goods, so the selection of manufacturers is a very important stage, can assist customers to reduce costs and delivery of high-quality goods from the source

Would casting the metal make it stronger? Cast parts will cool very slowly from the molten state. This promotes the formation of relatively larger grains, so the strength of the part is reduced. When forging an ingot, the reduction in cross-section helps break up individual grains and "refine" their size.

Why is casting cheaper than forging? For medium to high volumes, forgings are the most cost-effective. Castings can be efficiently purchased in small, medium and large quantities. Castings generally have lower raw material costs than forgings because the initial process of casting an ingot and machining it into a billet is eliminated.

Which four types of molds are used in casting? Types of casting molds Vacuum form. Vacuum forming can produce many thin and fragile molds in a short time. ... Ceramic mold. Ceramic molds are often produced using a "lost wax" casting process. ... permanent mold. Permanent molds are usually made of steel, iron, silicone or polyurethane. ... Die casting.

Which is better, silicone mold or plastic mold? Price and Quality: Plastic is by far less expensive than silicone molds. However, plastic items generally don't last that long and require great care to prevent scratches. Silicone molds will cost more upfront, but they will be more forgiving in terms of usage and literal flexibility.