CNC milling machining is a CNC machine tool trajectory by means of computer controlled machine, using high speed rotating cutting tool if you want to shape the material. With the size of products have become increasingly demanding, machining from the original two gradually changed to 3 axis machining, 4 axis machining, 5 axis machining center, precision can reach 0.001mm. us the maximum machine processing size: 500mm * 1000mm *600mm, 800kg machine under the maximum weight of workpiece, Machine tool spindle speed 20000RPM to ensure that the surface of the workpiece is smooth and clean.we often processed material of aluminum,steel, copper, stainless steel, titanium, POM, Teflon and so on. At the completion of high quality, high dimensional accuracy of CNC milling machining parts process, we will divided into rough machining and processing method fine to get the best effect, the margin size coarse and finish machining is 0.5 * 1mm. after processing some of the products after surface treatment such as plating polishing surface passivation.Sand (powder), anodic treatment (aluminum common CNC anodized black red blue anode, anode, anode). CNC milling machining is widely used in aviation, automotive, communications, medical equipment, electrical appliances, drone.
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In addition to,we also provide high precision machining and precision machined parts,supply custom machining services and cnc machining services for small batch.
Filter and pressure control valve maintenance methods
The air cleaner and pressure regulator PCV are easily overlooked when routinely servicing the vehicle. Moreover, it is often the case that when they become clogged and endanger the normal operation of the engine, they will be replaced and replaced. In order to avoid premature engine wear (abnormal) and to maintain the best working condition, the air filter and pressure regulator valve PCV regular inspection and replacement is crucial. We emphasize that preventive maintenance of air filters is not an exaggeration. The air cleaner filters out airborne dust, carbon and other debris before the air is mixed with the fuel, thus ensuring clean air intake. In fact, about 10,000 units of air are required to pass through the filter per unit volume of fuel burned. And then the tiny particles of dirt can lead to serious wear and tear of the engine related internal components. Normally, the manufacturer recommends that the replacement interval of the air filter be maintained at 48,000 km and that it be routinely checked every 24,000 km. The recommended replacement period for conservative maintenance is 24,000 km. The atmosphere contains three basic particulate pollutants of different densities, namely dust, debris and carbon particles. On open freeways, its dust content is lower than in rural and built-up areas. In areas with a high dust concentration, the air filter should be tested and replaced more frequently. In highways and areas with heavy traffic, carbon levels in the air are significantly higher because of the concentration of car emissions. In the daily replacement of oil, incidentally check the air filter after all, is a good way to get the best of both worlds. At this point, take the filter and carefully examine the inner depths of its folds. Occasionally, the exterior of the filter appears to be clean, but its interior is already so dirty that it must be replaced immediately. The PCV system introduces the mixture of blowby into the crankcase into the intake system and then the secondary combustion in the combustion chamber. Over time, oil, gasoline, and other condensate deposits inside the PCV valve into a sludge gel that clogs the PCV valve and increases the gas pressure inside the crankcase. This pressure build-up causes oil to leak from the seal or gasket, causing additional oil and engine leaks. In addition, increased pressure on the crankcase allows PCV vapor to pass through the air filter, which sticks to the oil and HC compound particles, which inevitably reduces its proper filtration accuracy. When the foreign matter sticking to the PCV can not be completely shut down, an inappropriate amount of air will be introduced into the combustion chamber, which in turn dilutes the air / fuel mixture, eventually leading to deterioration of the idle speed of the vehicle and flameout. The recommended replacement cycle for PCV valves provided by most manufacturers is 96,000 km. The conservative maintenance cycle is 48,000 km. In any event, be sure to check that the PCV valve is clogged and bonded while checking the air cleaner. The recommended replacement cycle for Ford PCV valves ranges from 9.6 to 160,000 km depending on the specific models. General Motors also offers the recommended replacement cycle for PCV valves based on different models, with a wide range of values. When you have doubts about the PCV valve change intervals for the vehicle being serviced, please consult the owner's manual or repair information in good time.