CNC Machining China blog - Precision CNC Machining Solution for Metals

In typical automotive filtration applications, laminar flow occurs, so you can consider the application of log-normal pore distribution technology. A more important structure is that loose paper not only has a larger number of pores than compact paper, but also finer. The hole size has a wide range, so it is impossible to use conventional papermaking methods to produce a paper sheet with a large number of uniform pores. In the case of organic liquid with a certain pressure head as the background, let air pass through the paper in a boosted state, and then analyze the air flow to obtain the distribution of pores. Unfortunately, it is not yet possible to establish a correlation between the measured pore distribution and the filter paper's particle removal efficiency. The main reason lies in the complexity of the mechanism by which particles are removed when the liquid flows through the filter medium. A simple filtration process, in fact, it is very danger

1, process Construction preparation → Material input, inspection → Cutting → Drainage line, hanger manufacturing / construction → Welding → Welding polishing → Pickling → Welding inspection → Pipeline pressure test, flushing As shown in Figure 2. 2.1 Construction preparation (1) Develop a construction plan and construction schedule, and establish high-quality work standards. (2) Workers are mainly pipeline engineering, argon arc welders, and other works, and argon arc welders require certificates from related departments. (3) Construction materials are prepared according to the material plan, delivered to the site, and guaranteed to be supplied as planned. (4) Field workers prepare technical tests, field technicians, and safety tests. 2.2 Preparation of welding material (1) Piping and fitting selection is based on environmental factors, chemical composition and working pressure, and the appropriate product grade is selected to ensure the metal structu

  The material selection and machining accuracy of the worm gear are also very important. Use 10P polyoxymethylene (POM), or use glass fiber reinforced nylon or reinforced polycarbonate (PC). However, pOM has good comprehensive performance, high bowing, rigidity, impact, fatigue, and creep resistance. In particular, it has outstanding fatigue resistance and is easy to form. It is the best among thermoplastic engineering plastics. It has a small and stable friction coefficient, low water absorption, good dimensional stability, and low price, so it is our best choice. In order to buffer the impact force generated by starting in the forward and reverse directions and ensure the life of the transmission parts, the transmission disc needs to be equipped with a rubber transmission disc with good oil resistance, wear resistance, high bow change and good elasticity under high temperature and low thirst. The structure size is matched with the worm gear. , Embedded

I always hear maintenance people talking about spark plugs. What is the role of spark plugs? How long does it take to replace? How to choose a spark plug? What are the symptoms of a broken spark plug? This is a series of questions that some novice car owners* love to ask. There are spark plugs on gasoline engines, one for each cylinder, and individual high-speed gasoline engines are equipped with two spark plugs per cylinder. Although the spark plug is a small part, it is extremely important. The function of the spark plug is to introduce the pulse high voltage electricity generated by the ignition coil into the combustion chamber, and use the electric spark generated by the electrode to ignite the mixture to complete the combustion. 1. How often do I need to change the spark plug? Due to the different spark plug materials, the types of spark plugs can be divided into: ordinary copper core, yttrium gold, platinum, iridium, platinum-iridium alloy spark plu

Import: After the development of Swiss watchmaking technology encountered a bottleneck, watch brands have begun to attach great importance to watch materials. After stainless steel and precious metal materials, there are new materials such as ceramics, sapphire glass and titanium. Watch merchants appreciate the excellent performance of these materials and use these materials as covers. For example, ceramics are very wear resistant and titanium is very light. Titanium bracelet Table of Contents Titanium bracelet Titanium alloy case Lightweight watch Pressure resistance does not deform Super corrosion resistance Can this titanium alloy be used as a mechanical surface material? Titanium is used as a metallic material, and its appearance has improved the shortcomings of previous watch materials. Watchmakers see the excellent performance of this material, and designers love the avant-garde texture. With constant technological advances, titanium watches have

MQL is a green manufacturing technology. During the cutting process, high-speed mist particles are sprayed to the cutting point, which increases the permeability of the lubricant, improves the lubrication effect, and improves the surface quality; the amount of lubricating oil is between 5-50ml/h (The number of nozzles set according to the needs is the main factor that determines the consumption), which is one ten thousandth of the cutting fluid. The advantages are: reduced lubricant costs, workpiece drying without cleaning processes, no waste liquid treatment, improved processing environment, etc. … At present, MQL micro-lubrication technology has been used in domestic auto parts manufacturing equipment, such as crankshaft oil hole special machine, balancing machine, main journal cylindrical car, connecting rod and gear machine tool. While the micro-lubrication technology is generally recognized by machine tool manufacturers and end users, it is also facin

Classification, main functions and performance of lubricating oil for heavy-duty vehicles At present, lubricating oils for heavy-duty vehicles can be divided into diesel engine lubricating oil according to their purpose (heavy vehicles are mostly diesel engine vehicles, and only diesel engine lubricating oil is introduced here), gear oil and grease Three categories. The main function and performance of diesel engine lubricating oil. The main function of diesel engine lubricating oil, anti-friction effect Diesel engine lubricating oil must be able to reduce the friction of all parts of the engine, prevent excessive wear between the contact points of metal parts, and ensure the normal operation of the engine. Purifying and dispersing effect. Due to the high sulfur content and soot content of diesel fuel during combustion, there are more insoluble components in the engine oil. When the deposits formed by these substances block the engine piston ring, it will af

In order to set off a climax to resist counterfeit and inferior auto parts in the city, relevant news was publicized and reported through Beijing TV, “Market News”, “Beijing Daily” and “Auto Maintenance Information” newspapers. In order to mobilize the masses of purchasers to attack the counterfeit and inferior auto parts, the Auto Maintenance Committee of the Municipal Highway Transport Association has set up a special reporting hotline: 3271620 to receive incidents of exposing counterfeit and inferior parts, and assist in digging the root “pupa”, and adopt appropriate methods to deal with it. exposure. After the lecture, many purchasers suggested that more such activities be held in the future, so that fake and inferior accessories have nowhere to hide. The purchasing staff of Anda Automobile Maintenance Department in Mentougou District called on the special line the next day to report that the Volga steering gear purchased by the factory in Wukesong Auto

Anyone who knows CNC equipment knows that the processing configurations used by CNC equipment for processing different types of products are different, that is to say, if you want to process more precise parts, you need to use communication equipment five-axis processing, but if the control is not good, it will affect the quality of the parts. In order to avoid this situation, it is necessary to pay attention to the following points when using five-axis machining. 1. Pay attention to strictly abide by personnel operating regulations Table of Contents 1. Pay attention to strictly abide by personnel operating regulations 2. Pay attention to the trial run before processing 3. Pay attention to the parts inspection before starting up Equipment such as five-axis processing is relatively dangerous during operation. Careless operation of personnel can lead to injuries. As long as the operation specifications are followed to avoid personal injury, such as wearin

  The current car ownership in Shanxi Province has reached 760,000, Taiyuan has 160,000, Taiyuan has 1,853 spare parts stores, and more than 90 repair shops have customer recognition and brand trust. The result is extremely low. Stable market share and weak market development capabilities force merchants to only make profit to ensure the market. A single auto parts company cannot conduct scientific research on service standards. It is precisely because of the huge market capacity that cannot be scientifically and rationally deployed, the macro-scale advantage cannot be fully utilized, which eventually causes huge operating risks and economic losses. It can be seen that it is very necessary to introduce a kind that can make full use of the advantages of the same industry’s scale, and can ensure the intensive use of resources in management, and conduct a comprehensive clean-up of the local market. It is very necessary to rectify. In the past few years, the i

Compared with the traditional cutting fluid lubrication method, the sawing oil-air lubrication device has great advantages: ● The sawing machine no longer needs to add filtering facilities, which saves the initial investment. ● There is no need to process the materials after oil-air lubrication, and you can directly enter the following types of work. ● The oil consumption of oil-air lubrication is very low, and the cost of lubricating oil is greatly reduced. ● It will make the processing process clean and environmentally friendly, which is more conducive to the maintenance of the machine tool. ● The surface of the workpiece is dry and can prevent rust without subsequent cleaning. To increase the life of the saw blade, it is necessary to choose a more suitable lubrication method. The oil-air lubrication device has an undoubted effect in improving the lubrication effect and life of the saw blade. According to statistics, the oil-air lubrication greatl

In the application of micro-lubrication system, the generation of oil mist is very critical.There are many factors that affect the effectiveness of MQL micro-lubrication. At present, most users do not have a clear understanding of the characteristics of oils used under micro-lubrication conditions. They believe that as long as the oil can be used in micro-lubrication processing, this is a wrong understanding. The correct selection of micro-lubricating products is very important. First of all, mineral oil cannot be used in micro-lubrication processing, mainly because the oil mist particles produced by mineral oil are harmful to the human body, and the particle size generated by mineral oil atomization is large, the lubrication effect is not good, and mineral oil is not suitable for high-speed processing Lubrication in the state. When the micro-lubrication system is used in cutting processing, the oil is very important. First of all, the oil must be environ

PCs need the right amount of cooling holes during operation, and for safety the holes need not be too large, which poses an unnecessary danger. For UL and CSA, the inner diameter of the round hole must not exceed 2 mm. For SLOT, the width should be 1.5 mm or less and the length should be 20 mm or less. Due to EMI issues, the top and bottom covers are difficult to join when in close contact. In the absence of interference, EMI cannot pass through, so debris can be added intermittently to create ground between the top and bottom covers. Pc sheet metal processing hole Table of Contents Pc sheet metal processing hole 1.Thickness 2. Internal and external angles 3. Rib 4. Bushing 5. Fusion line Draft angle (1) The larger the range, the better, as long as the appearance and shape of the case are not harmed. (2) A draft angle of about 1/10 to 1/30 (1 to 2 °) is appropriate. (3) The minimum practical value is 1/120 (about 0.5 °). (4) The surface is treated

Quick-drying sand core sand binder To To The quick-drying adhesive is a room temperature quick-drying adhesive that is very suitable for combined installation between complex cores after molding. At room temperature, the tensile strength can reach more than 0.4 MPa in 10 minutes, the tensile strength can reach more than 0.6 MPa in 15 minutes, the tensile strength can reach more than 1 MPa in 20 minutes, and the final tensile strength can reach 4 MPa. product name: Quick-drying adhesive Product performance: The appearance of this product is milky white viscous paste, with the following excellent features: 1. High-quality features such as fast hardening speed, high end strength, and small air volume; 2. Overcome the shortcomings of traditional adhesives such as long drying time and high curing temperature; 3. Meet the needs of timely assembly and timely core loading after the efficiency of the hot core box and cold core box core making process has been

  Analysis and improvement of vehicle water radiator, whether it is to reduce the number of water pipe rows in the thickness direction of the radiator core or reduce the geometric size of the water pipes, the result will cause a reduction in the heat dissipation area, which will obviously affect the heat dissipation of the entire radiator performance. In order to make up for the loss of performance due to the reduction of heat dissipation area, the most effective method is to develop high-efficiency heat sinks. The louver-shaped zigzag heat sink is a high-efficiency heat-dissipating element, which is the result of increasing the local heat release coefficient after developing a cut on the heat transfer surface in the direction of the air flow. Polhausen explained the basic way to improve the heat dissipation coefficient of the notched heat sink, and applied this theory to various notches formed at intervals. According to sand, if the fluid velocity and phys

The secondary spring system of the original electric locomotive consists of 4 sets of the same ordinary cylindrical compression springs. Its parameters are: spring material diameter d=48mm, maximum working circle diameter D=230mm, effective working circle number n=6.6, free height H0= 528mm, working height H=431mm. The characteristic curve of the spring is approximately straight, with stable stiffness and simple structure. However, the spring stiffness is mainly along the axial direction, and its transverse shear and bending stiffness is very poor, and its anti-resonance ability is poor. After the train speeds up, its snake-like movement and shaking phenomenon intensify. Therefore, it is necessary to improve the spring system of electric locomotives. Improvement of the spring system. The improved spring parameters and characteristics take into account the special position of the secondary spring (between the bogie and the car body) and specific functions (s

Micro-lubrication technology is to mix a small amount of environmentally friendly and harmless lubricating oil mist particles into the compressed air to replace the cooling and lubrication of the cutting fluid during metal cutting: MQL is a green manufacturing technology. During the cutting process, high-speed mist particles are sprayed to the cutting point, which increases the permeability of the lubricant, improves the lubrication effect, and improves the surface quality; the amount of lubricating oil is between 5-50ml/h (The number of nozzles set according to the needs is the main factor that determines the consumption), which is one ten thousandth of the cutting fluid. The advantages are: reduced lubricant costs, workpiece drying without cleaning processes, no waste liquid treatment, improved processing environment, etc. Economic benefits brought by micro-lubrication: 1. Saving cutting fluid brings huge savings, including cutting fluid procurement, s

Recalling that in the 1950s and 1960s, foreign automobiles such as Warsaw, Volga, Skoda, Kyrgyzstan, Kyrgyzstan, etc. were the mainstay of China’s automobile flow, and the parts industry also mainly operated some parts. In the 1970s and 1980s, Japanese cars flocked to people. Toyoda, Nissan, Mitsubishi, Hino, Isuzu, Mazda and other cars continued to flow in China. The auto parts of these models also entered the currency auto parts market through different channels. . Nowadays, domestically produced Dongfeng, Jiefang, Santana, Cherokee, Peugeot, Xiajiao, Zhuli, Chang’an, and Changhe parts markets are also surrounding parts stores such as Jilin, which have become the mainstream of China's automobiles, and the development of automobile accessories and the operation of new domestic automobiles. Hao Chunsun spread all over the north and south of China. The new car special maintenance service system integrating vehicle sales and parts supply is expanding day

  The continuous increase in the cost of using cars is forcing people to not let go of any detail that saves money. Tires are actually a cost-intensive consumable in the process of using the car. 4 tires are worth thousands of dollars. If improper use leads to abnormal wear and tear, it is also a test for the owner’s wallet. How to reduce tire wear and maximize the service life of tires is the knowledge that car owners must master. Good and skilled driving skills can effectively reduce tire wear, extend the service life of tires, and improve driving safety at the same time. Insufficient or high tire pressure can easily lead to a puncture “You must inflate the tires on high speeds.” Many riders think that only when you get enough gas to go on high speeds can the car have the “strength” to run at high speeds,” but in fact, this idea is wrong. Dongfeng Fengshen 4S According to the store staff, if the tire pressure is too high, the contact area between the ti

Keywords: Cnc Machining manufacturer,CNC Machining ave you ever thought that when users question CNC Machining manufacturers, do you think that this material is actually very related? For CNC Machining, what you can see is basically some superficial things. Most of these things can't meet the actual needs of customers. They can only be satisfied with the roughness of the surface, and the potential technical content is not seen by many people. of. In fact, the true strength of a CNC Machining manufacturer is not just spoken out, but is fed back through the real experience of a number of cooperative users. Perhaps one or two say it well, but it does not mean that CNC Machining manufacturer How powerful, but the number is enough to prove the overall processing strength of this CNC Machining manufacturer, you can rest assured that it will not be bad. Therefore, choosing CNC Machining parts has advantages. For CNC Machining, because there are too many us

Technical requirements for sheet metal drawings Sheet metal processing Generally, the technical requirements are “S’X0 R / P% Y” 1. Unmarked tolerance requirements IT01, IT0, IT1, IT2 to IT18 2. Details of some requirements (eg sanding) 3. Do I need 0 M $ r * D6 for surface treatment? And |. ] 3 {& h + w} r 4. If there is welding, the weld bead must be processed. Technical requirements for sheet metal Table of Contents Technical requirements for sheet metal Material ** (You must specify the name and specification of the material, some require the creation of a national standard code). Material thickness and quality should comply with national standards. The material used should show a performance test report and manufacturer’s certificate. Material appearance: Smooth, rust-free, no cracks or deformation. Part size: According to drawings and national standards, the important size is zero defects. Performance: Test components and performanc