Die casting machine operation specification 1. Pre shift preparation 1.1 die casting workers must wear labor protection articles as required at work, including work clothes, work shoes and work hats. It is strictly prohibited to wear vests, shorts and shirtless. 1.2 the die casting worker must arrive at the post 20 minutes in advance for pre job preparation, including: View shift change records Prepare class II tools and inspection tools required for production Check the product quality of the last shift, this shift and other shifts 1.3 15 minutes before shift handover, the team leader shall gather the team members to hold a pre shift meeting, including: The shift leader shall arrange and adjust the work on duty The monitor shall convey the company's decision The monitor introduces various problems existing in the work time, reminds employees and puts forward requirements. 2. Production preparation verification 2.1 before production, it must be verified according to production preparation verification, including process verification: Check whether the actual process on site is consistent with the process card Input and check the process without input item by item 3. Machine start 3.1 before starting the machine tool, the aluminum die casting machine tool must be comprehensively checked to ensure that the die-casting machine tool is in normal state. 3.2 before starting the machine tool, manually lubricate it for 3 times before starting it. 3.3 jog to start the machine tool and observe the operation of the machine tool. If there is any abnormality, stop the machine immediately. 3.4 after the machine tool is started, the cooling water shall be turned on to prevent the oil temperature from rising. 3.5 in case of machine tool failure or alarm signal, immediately check the cause and report for repair. It is strictly prohibited to work with machine tool failure. 4. Mold installation for pressure casting machine

Problems easily ignored in horizontal type cold chamber die casting machine production site 1: The correct connection, coordination and maintenance are as shown in (Figure: 1): (1) the injection plug rod, injection rod assembly and molten cup hole shall be coaxial and the axis shall be repeated. The connection shall be firm without obvious looseness. There shall be no obvious gap at the cladding. (2) : the cushion block shall be replaced frequently (prepared according to the actual size between the injection rod and the piston rod). (3) : the connection between the ejector rod, transition joint and ejector head shall be kept tight. (4) : keep the cooling water unblocked. (5) : the injection head shall be well lubricated. Special precautions: (1) : do not use a bent ejector rod. (2) : do not use the injection head with different inner hole thread and outer circle core, and the melting cup with different inner and outer circle core. 2: Incorrect connection and fit are shown in (Figure: 3) Cause of the problem: due to thousands of injection shocks every day, the length of the cushion block between the injection rod and the piston rod is gradually shortened, resulting in the gap between the injection rod, the piston rod and the inclusion part of the split wrap clamp. When the gap is large to a certain amount, the results shown in (Figure: 3) will appear. This is a problem that many factories have neglected for a long time. It causes permanent deformation of the end face of the injection piston rod (the end face is not perpendicular to the axis) or even fracture. Make the injection head, injection rod assembly and molten cup operate under the condition that different axes and axes do not repeat. Main features of fault: (1). The ejector rod is often bent and deformed. (2). Excessive joints often break. (3). Always jam the ejector head. The service life of the ejector head is short. (4). The single side wear of the injection head, the melting cup and the gate sleeve on the die is very fast. Aluminum liquid often splashes outward from the gap between the molten cup and the injection head. Or the flash on one side of the material handle is very large. (5). The repeated precision of equipment injection action is poor, so that the product quality is unstable. Once this problem is formed, the ejector head will often be replaced in the production process, and the general technicians will give the wrong conclusion of "poor quality of ejector head and no wear resistance". 3: The simple judgment method of brass alloy die casting machine is shown in (Figure: 4) (1) Simple measurement: carry out physical die casting machine with manual program. After the die casting action is completed, measure whether there is obvious difference between the surrounding gap between the injection rod and the molten cup. If there is a large difference, it indicates that the injection rod or piston rod has been deformed (generally, it is normal if the center deviation is within 0.2mm...

Introduction: before industrial robots brought vitality to the automobile industry, the application scope of industrial robot technology in the manufacturing industry in the world has become wider and wider. It has been extended from traditional manufacturing industry to other manufacturing industries, and then to various non manufacturing industries, but the automobile industry is still the main application field of industrial robots. It is understood that% of industrial robots in the United States are used in automobile production; Used in the automotive industry worldwide. Before industrial robots brought vitality to the automotive industry, the application scope of industrial robot technology in the manufacturing industry has become wider and wider in the world. It has been extended from traditional manufacturing industry to other manufacturing industries, and then to various non manufacturing industries. However, the automotive industry is still the main application field of industrial robots. It is understood that% of industrial robots in the United States are used in automobile production; Industrial robots used in the automotive industry in the world have reached 37% of the total consumption, and industrial robots used in automotive parts account for about 24%. In China, the initial application of industrial robot is in automobile and construction machinery industry, mainly used for spraying and welding of automobile and construction machinery. At present, due to the backwardness of robot technology and R & D, industrial robots are mainly used in manufacturing and less in non manufacturing. According to statistics, in recent years, more than half of the industrial robots produced by domestic manufacturers are provided to the automotive industry. It can be seen that the development of automobile industry is one of the driving forces for the growth of industrial robots in China in recent years. At the same time, in the "notice on organizing and implementing the development of intelligent manufacturing equipment" issued by the national development and Reform Commission, the Ministry of finance, the Ministry of industry and information technology and other ministries and commissions, according to the current situation of the development of intelligent manufacturing equipment in China, the "special" will focus on supporting the research and development of intelligent complete sets of equipment and key intelligent components required in automobile manufacturing and other fields, In the near future, it will focus on promoting the application of industrial robots and key intelligent components, such as robot automobile welding automation production line related to automobile, digital workshop and intelligent logistics system. Among the new national major technical equipment projects with demand as the traction, process as the guide, emphasis on user participation and finally aiming at the industrialization and transformation results, there ar...

Introduction: save the release agent: the amount of robot spray and artificial spray release agent is the same. It saves more than half of the dosage of the release agent, and the spray position is more accurate than that of the traditional sprayer. It can improve the quality of the product. The copper tube sprays, because of the air pressure reason, the copper tube will be changed after a few hours, and it needs to be adjusted manually, while the robot fixed the spray. High accuracy and many stored programs: can the robot be right.  Save release agent: The dosage of the robot spray and the artificial spray release agent is the same, which saves more than half of the releasing agent dosage than the traditional sprayer The spray position is accurate: it can improve the quality of products. The copper tube sprays, because of the air pressure reason, the copper tube will be changed after a few hours, and it needs to be adjusted manually. Storage program: robot can store more than 99 spray programs for different molds, write programs, and then tune them out for use. Life expectancy: after 4 years of conventional sprayers, there are many problems, such as slideway and guideway wear, and the robot will live longer than 8 years under proper operation. Robot flexibility is high: the traditional sprayer can only spray, and when the robot changes the fixture, it can also be used for picking or other purposes. Program changes are simple: The robot has a hand-held programmer for easy operation.  The fault rate is low: the traditional sprayer will be repaired several times on average, but the robot will hardly fail at the correct operation.

Congratulations to our company for winning the certificate of the standing director unit of the Anhui Chamber of Commerce for Import and Export

working principle of natural gas compressor maintenance and repair of natural gas compressor   Working principle of natural gas compressor When the compressor is running, the motor drives the crankshaft to rotate, and the piston moves back and forth through the connecting rod. When the crankshaft rotates for one cycle, the piston moves back and forth once, and the process of suction, compression and exhaust is realized successively in the cylinder, that is, a working cycle is completed. (1) During the suction process, when the piston moves to the left, the working volume in the cylinder gradually increases and the pressure gradually decreases. When the pressure drops slightly below the pressure in the intake pipe, the gas in the intake pipe will push open the suction valve and enter the cylinder until the piston reaches the leftmost position (also known as the inner dead center), the working volume is the maximum and the suction valve begins to close. (2) During compression, when the piston moves to the right, the working volume in the cylinder decreases and the gas pressure increases gradually. Because the suction valve has a check function, the gas in the cylinder cannot flow back to the intake pipe. At the same time, because the gas pressure in the exhaust pipe is higher than that in the cylinder, the gas in the cylinder cannot flow out of the exhaust valve, and the gas in the exhaust pipe cannot enter the cylinder due to the check effect of the exhaust valve. At this time, the amount of gas in the cylinder remains constant, and the gas pressure increases with the right movement of the piston. (3) During the exhaust process, when the piston moves to a certain position to the right, the gas pressure in the cylinder rises to slightly higher than the gas pressure in the exhaust pipe, and the gas will push open the exhaust valve and enter the exhaust pipe until the piston moves to the rightmost position (also known as the outer dead center). When the exhaust valve is closed, the piston moves left again, and the above process repeats.   Difference between natural gas compressor and ordinary compressor Natural gas compressor is different from ordinary compressor. Natural gas compressor mainly compresses natural gas (including content, methane, propane, etc.) with high pressure and high risk level. Ordinary compressor mainly compresses air, which is very single to medium and low pressure. Compressed natural gas has the same composition as pipeline natural gas, The main component is methane (CH4). CNG can be used as vehicle fuel. LNG (liquefied natural gas) can be used to make CNG. This CNG fueled vehicle is called NGV (natural gas vehicle). Liquefied petroleum gas (LPG) is often confused with LNG. In fact, they are obviously different. The main component of LPG is propane (more than 95%), there is also a small amount of butane. LPG is stored in liquid tank container under appropriate pressure and is used as civil fuel and vehicle fuel. Main...

Current situation of natural gas compressor industry The domestic natural gas compressor industry started relatively late and began to explore the new market of natural gas compressor at the end of last century. Natural gas compressor belongs to high-pressure ratio large industrial centrifugal compressor, while Shengu group occupies most of the domestic market share in the field of centrifugal compressor and basically monopolizes in the field of high-end technology, The annual total value of the domestic compressor market is less than 10 billion yuan, belonging to a small industry. The centrifugal compressor is a high-grade industrial customized product. Shangu group was the first three-line factory dispatched by Shengu group to support the construction. The two sides have made clear the main direction. Shangu group mainly focuses on axial compressors and occupies most of the domestic market share. Around 2015, due to the domestic adjustment of supply and demand structure, The axial flow machine market has shrunk seriously. Shangu group has vigorously developed the field of centrifuges and began to participate in the market competition of long-distance pipeline compressors. In the natural gas compressor industry, it is called long-distance pipeline compressor. It is a centrifuge with relatively standard design specifications, and the model needs to be fixed. It was first driven by PetroChina's west to east gas transmission project. At that time, China did not have a company capable of production. All imported compressors, American GE, German Siemens, etc. were used in the construction of the West first line and part of the west second line. The sky high price equipment was provided on-site guidance. Under the guidance of the State Council's localization, the compressor of Shengu long-distance pipeline officially entered the field of vision. Around 2011, the 20MW long-distance pipeline compressor of Shengu group was successfully commissioned, and then successfully entered the west to east gas transmission project, ensuring that the lifeline of the country is in its own hands. After the entry of Shengu group, the price of foreign units has shrunk significantly and the price has been reduced by more than half. So far, foreign units have basically lost their advantages in the domestic market competition and gradually withdrew from the Chinese market. Later, Sinopec also began to vigorously develop long-distance natural gas transportation. Sinopec's new Guangdong Zhejiang pipeline and China Russia natural gas pipeline project basically established the position of Shengu group as the core supplier of long-distance natural gas pipeline compressor for heart equipment. So far, the state of completely grasping China's destiny of high-end centrifugal compressor from abroad has ended. Shangu group participated in the supply of a long-distance pipeline compressor of Shangu group. It is said that the supply cycle is long, beyond t...

Precautions for oil used in hydraulic system of die casting machine The hydraulic system is the heart of the cold chamber die casting machine, and the hydraulic oil is the blood of the die casting machine. What problems should be paid attention to when using the hydraulic oil in the hydraulic system of the die casting machine? From two aspects: the first is the selection of hydraulic oil, and the second is the precautions for the use of hydraulic oil. 1、 Selection of hydraulic oil: For the die-casting machine, the quality of hydraulic oil directly affects the service life of the die-casting oil valve. The damage of any oil valve will affect the normal operation of the machine. If the oil selected at the beginning is inappropriate, the harm to the machine has already occurred, but it is not easy to find. In this way, it will be difficult to repair in the future. Therefore, the selection of hydraulic oil with appropriate variety and viscosity is the primary condition to ensure the normal operation of the system of automatic high precision die casting machine. 1. Selection of hydraulic oil varieties The variety selection of hydraulic oil is determined by the working environment and working conditions of hydraulic equipment. There are many kinds of hydraulic oil, including anti-wear hydraulic oil, anti combustion hydraulic oil, low pour point hydraulic oil, etc. Generally speaking, anti-wear hydraulic oil should be selected for the hydraulic system of aluminium alloy die casting machine. It is developed from anti rust and anti oxygen hydraulic oil. It not only has good anti rust and anti-oxidation, but also has more outstanding anti-wear performance and longer service life. 2. Selection of hydraulic oil viscosity When selecting hydraulic oil, it is important to select the appropriate viscosity grade. Temperature is the main reason affecting the viscosity of hydraulic oil. If the viscosity is too low, it will cause leakage and increase wear, resulting in the pressure of hydraulic system not meeting the standard, and the product quality does not meet the requirements. If the viscosity is too high, it will increase the suction resistance of the pump, easily produce cavitation, cause vibration and noise, reduce the response performance of the hydraulic system and reduce the action sensitivity. Generally, No. 46 hydraulic oil shall be selected in winter and No. 68 hydraulic oil shall be selected in summer. 3. Comprehensive technical and economic analysis of oil separation In the use of hydraulic oil, economy is an indispensable and important part. People often only pay attention to the price of oil products, ignoring the variety and quality of the selected oil. It is understood that the improper selection of oil products in the operation failure of hydraulic system is an important aspect. Therefore, in order to prolong the service life of oil products, save equipment maintenance costs, prolong the service life of hydraulic components and improve operation...