CNC Machining China blog - Precision CNC Machining Solution for Metals

  As the rapid development of the domestic automobile industry has driven the rapid growth of the lubricant market, from the perspective of the product structure of the production plant, it mainly produces three oil series of internal combustion engine oil, hydraulic oil and gear oil, and its output accounts for the total output. This also reflects the current consumption structure of lubricants in China. From the quality point of view, although the proportion of medium and high-end lubricants in China has been steadily increasing in recent years, the proportion of medium and high-grade products in finished lubricants is basically, but the proportion is still far from that of developed countries. Demand forecast The lubricating oil market is closely related to the demand for oil in industries such as automobiles, machinery, and transportation. The entire machinery industry accounts for a quarter of the national industrial output value. The development a...

There are two types of automobile reducer commonly used, single-stage and double-stage, which are arranged horizontally or vertically on the axle housing. The automobile reducer housing with two drive axles has two types: through and non-through. The through-type reducer shell is divided into two types: single through and double through. The reducer housing of some segmented axle housings is integrated with the middle section of the axle housing. Heavy-duty trucks and mining dump trucks are required to have a larger reduction ratio and a larger ground clearance in order to adapt to multiple uses and complex road conditions. The heavy-duty vehicles produced by some foreign automobile manufacturers use planetary gear wheel reducers and bevel gear planetary wheel reducers. The advantage of this wheel-side reducer structure is that it has a smaller outline size to obtain a larger speed ratio, and it can be arranged inside the wheel. The materials of foreign red...

In the use of automobiles, oil leakage failures often occur, which will directly affect the technical performance of the automobile, cause the waste of lubricating oil and fuel, consume power, affect the cleanliness of the car, and cause environmental pollution. Due to oil leakage and the reduction of lubricating oil inside the machine, the machine parts are poorly lubricated and insufficiently cooled, which will cause early damage to the machine parts and even leave hidden accidents. 1. The main causes of common vehicle oil leakage 1. Product (accessories) quality, material or workmanship is poor; there are problems with structural design. 2. Improper high-speed assembly, unclean mating surface, damaged gasket, displacement or failure to install in accordance with operating regulations. 3. Uneven tightening force of the tightening nut, breakage of the sliding wire or looseness and fall off, etc. cause work failure. 4. After long-term use, the sealing m...

  The performance of gear oils for heavy-duty vehicles. Good anti-corrosion and cleaning performance. Because the working environment of heavy-duty vehicles is generally poor, the dust and sewage in the environment are easily brought into the lubricating oil, and the temperature of the lubricating oil is high during the operation of the vehicle, which may cause complex problems. The chemical reaction produces acidic substances. In order to prevent the gear from being affected by the acidic substances in the oil and the sludge generated by the deposition of insoluble substances, the gear lubricant must have a good anti-corrosion and cleaning effect. Good extreme pressure resistance The extreme pressure performance of lubricants refers to the maximum load that the lubricant can withstand when it does not cause scratches or seizures during the pressure bearing process. Under normal operating conditions, the gear is in the state of elastic hydrodynamic lubr...

Nature: Fire In addition to the hot weather, the aging of vehicle internal parts is also an important cause of spontaneous combustion of vehicles. Therefore, vehicle owners should be diligent in daily inspection and maintenance of vehicles. Engine gasoline filter failure, wiring failure, power line aging, or long-distance overloading of the car causes the engine components to keep running and the temperature rises, which may cause the car to spontaneously ignite. Fire extinguisher essential The fire extinguisher is a necessary device for the car. However, many car owners do not understand the correct use of fire extinguishers, or never check whether the fire extinguishers are working properly, so that in the event of an emergency, they cannot carry out self-rescue. Therefore, vehicle owners should learn the correct use of fire extinguishers at ordinary times; if the vehicle is equipped with a dry powder fire extinguisher, it is best to go to the local fi...

  Car lubricants are used very frequently during maintenance. In addition to protecting the engine and reducing the number of oil changes, high-quality lubricating oil can also save gasoline costs. In this season, we must also be careful not to cause car breakdowns due to improper use of lubricants. The “improper” use method generally stems from the four “misunderstandings” of car friends about lubricants. Misunderstanding XNUMX: Add more lubricating oil The amount of lubricating oil should be controlled between the upper and lower marks of the oil dipstick. Because too much lubricating oil will escape from the gap between the cylinder and the piston into the combustion chamber and burn to form carbon deposits. These carbon deposits will increase the compression ratio of the engine and increase the tendency of knocking; the carbon deposits in the cylinder are red hot and easily cause pre-ignition. If they fall into the cylinder...

  At present, there are mainly two types of four-wheel alignment instruments on the market: conventional and advanced. The conventional two-wheel alignment has 2D four-wheel alignment and the more advanced 3D four-wheel alignment. Types of four-wheel alignment There are several types of four-wheel alignment devices, such as toe ruler, optical level locator, cable locator, CCD locator, laser locator, and 3D image locator. Among them, 3D, CCD and laser products are the three mainstream products on the market. 3D products are the most advanced four-wheel positioning on the market. The measurement method is advanced and the measurement time is only one-fifth of the traditional locator. It has gradually matured. . Beijing exhibition, major four-wheel alignment manufacturers have shown V3D four-wheel alignment products, and V3D has become the biggest highlight of the exhibition. The major four-wheel positioning manufacturers have launched their own V3D pro...

1. Change the engine lubricating oil from time to time Table of Contents 1. Change the engine lubricating oil from time to time 2, replace the oil filter from time to time 3. Replace the air filter from time to time 4. Change the brake oil from time to time 5. Replace the antifreeze from time to time Under normal circumstances, the manufacturers of naturally aspirated engine models sold in China will require users to change the lubricating oil when driving 5000 km-15,000 kilometers, while the supercharged engine models require replacement when driving 5000 kilometers. If the car does not drive too much Or it has been in a stopped state, and it is best to change the oil every six months. Of course, if your environment and oil quality are good, you can extend the oil change interval and time appropriately. 2, replace the oil filter from time to time The function of the oil filter element is to filter impurities, so it must be replaced with the oil. If it...

The traffic conditions in the city are getting worse and worse. Stop-and-go in traffic jams is exhausting for owners of manual-shift cars. Therefore, the light and trouble-saving automatic transmission car has almost become the first dazzle of most urban residents. Although the automatic transmission car is easy to use, but because the automatic transmission system is a very sophisticated assembly, especially the manual automatic transmission Its structure is even more complicated. Therefore, once the automatic transmission fails, it is very troublesome and expensive to repair. In view of this, automatic gearboxes need more careful care and maintenance. Regularly check the transmission oil A kind of lubricating oil called ATF is injected into the automatic gearbox. In addition to lubricating and cooling down, its role is to transmit the power between the engine and the gearbox. The working temperature of ATF oil is generally around 120 degrees Celsius, so ...

In winter, there is a difference in temperature between morning and evening. When the temperature is colder at night, it is inevitable to turn on the car air conditioner to keep warm. Someone once asked whether turning on the car air conditioner would waste oil? Some people say no, because the refrigeration compressor of the air conditioner does not work, and the main energy consumed is the electric power of the electric fan, which is negligible. However, some people said that they would, and Master Sun, who was specially asked by the editor, asked him to explain it for us. In fact, the person who said he was basically right, but not quite right. why? Now let me explain the relationship between heating air and fuel consumption. The engine works normally and has certain requirements for the water temperature. Under normal engine operation, the water temperature is around 80°C to 95°C. If this temperature is not reached, the engine’s electronic injectio...

Calliper has a variety of measuring modes, easy to operate, durable, versatile and low cost, can be said to be the most common measuring tool in the tool box. However, there are a lot of matters needing attention to the correct use of calipers. Let's start with the error factors that affect the measurement results.   Error component When measuring with calipers, there are many factors that cause errors, such as parallax, error caused by structure not in accordance with Abbe principle, thermal expansion caused by temperature difference between calipers and workpieces, and so on. In addition, because the caliper has no constant pressure device, it is difficult to grasp the appropriate and uniform force measurement when measuring, which is another factor causing errors. The structure of calipers does not conform to Abbe's principle   The structure of calipers doesn't conform to Abbe's principle The reading number axis and measuring axis o...

Air filter: The function is to filter the dust and impurities in the air, allowing clean air to enter the engine, which is very important for the life and normal operation of the engine. If the air filter absorbs more dust and impurities, it will be blocked and affect the operation of the engine, so it must be replaced regularly. If you drive in a dusty place, such as a place with sandstorms, the replacement cycle of the air filter will be shortened. Battery: Needless to say, it stores electrical energy. Generally lead batteries, the electrolyte is dilute sulfuric acid. Brake fluid: Brake fluid as usual. Nowadays, the braking of a car is generally hydraulic, that is, the brake fluid is used as a medium to transmit the force of the brake pedal to the brake disc. Ignition coil: Converts low voltage to high voltage, and generates electric spark through the spark plug below it, which ignites the fuel-air mixture and burns to do work. Engine oil: Needless to sa...

With the party branch as the core of the bank's guidance, the socialist state-owned enterprise must have a strong and combative party organization, so that the majority of employees can have cohesion and the enterprise can compete with the outside world. The three are complementary and mutually supportive. Promoted. The key to the problem lies in whether the party organization has combat effectiveness. If the leadership team has fully played its role, it can unite the masses closely and enable the enterprise to forge ahead toward a common goal. In turn, if the mass foundation is good and the enterprise situation is good, the party organization can be more effective. Work well. The success of Zhanjiang Auto Parts Company fully illustrates this point. They mainly focused on the following tasks: The first is to enhance the combat effectiveness of the leadership team. Party branches and leading cadres are required to have a higher political level and profess...

In various industrial fields, five-axis linkage Cnc Machining centers are tools that have been widely used in recent years. Especially when researching and developing five-axis machining of products, due to the development of new products, metropolises need special-shaped, new or complex parts, so its utilization rate is even higher. But precisely because of the extremely high complexity of five-axis machining of research and development products, the probability of tool collision is high. How can we avoid knife collision as much as possible? Adding optional module programming Op to the simulation solution can effectively allow users to improve the NC program according to the motion mode of each machine tool, and use efficient lateral motion to automatically find a better orientation without collision for multi-axis machining. It allows programmers to avoid errors to a great extent when manually optimizing the axis position. The overall improvement process ...

Although the car is made of steel and has no flesh and blood, its life span and physical condition are similar to that of a human, and it also has a “life cycle”. Cars in different periods have very different “physical conditions”. The author roughly divides the life cycle of a car into five stages: “peak period”, “Microsoft period”, “menopausal period”, “twilight period” and “dangerous period”. In these five stages, the maintenance and repair focus of the car are also different. You can take corresponding “maintenance” measures according to the life stage of your car. 1-2 years-“peak period” The first two years of the car are the “peak period” of life. It can be said that when the car is in the best condition, it is equivalent to a person’s youth. People in this period are full of passion, bold words and lofty ambitions, daring to ...

  Combining equipment for point inspection and regular repair, carry out simple diagnosis of main production equipment, equipment on-line monitoring and management of key equipment status maintenance, tendency to manage fault degradation curve drawing of mine crushing equipment status management, comprehensive diagnosis of rotating equipment faults, fault diagnosis of cone crushers, Predict the failure cycle of mining equipment, analyze failure modes, and grasp the probability of failure. Early detection of potential equipment failures, making maintenance decisions, and realizing predictive maintenance of equipment. In recent years, the failure rate has increased, and common failures and sudden failures have increased year by year with the growth of service life. The overhaul is difficult, the overhaul cost is high, and the equipment operation performance is declining year by year. Analysis of the current situation of the moving cone bevel gear cone cru...