Compressors are classified as follows according to different structural forms: according to their principles, they can be divided into: Reciprocating piston compressor, rotary compressor (turbine, water ring, turbine) compressor, axial compressor, jet compressor and screw compressor, among which reciprocating piston compressor is the most widely used. How are piston compressors classified ？ There are many classification methods and different names for piston compressor. There are usually the following classification methods: 1.According to the cylinder position (cylinder centerline) of the compressor, it can be divided into: (1) Horizontal compressor, all cylinders are horizontal (the center line of the cylinder is horizontal). (2) Vertical compressor cylinders are arranged vertically (vertical compressor). (3) For angular compressor, the cylinder is arranged in different angles such as L-type, V-type, W-type and star type. 2. According to the number of compressor cylinder sections (stages), it can be divided into: (1) Single stage compressor (single stage): the gas is compressed once in the cylinder. (2) Double stage compressor (two stages): the gas is compressed twice in the cylinder. (3) Multistage compressor (multistage): the gas is compressed many times in the cylinder. 3.According to the arrangement method of cylinders, they can be divided into: (1) Tandem compressor: multi-stage compressor with several cylinders arranged on the same shaft in turn, also known as single row compressor. (2) Parallel compressor: multi-stage compressor with several cylinders arranged in parallel on several shafts, also known as double row compressor or multi row compressor. (3) Compound compressor: a multi-stage compressor composed of series and parallel. (4) Symmetrical balanced compressor: the cylinders are arranged horizontally on both sides of the crankshaft whose journals are 180 degrees from each other, arranged in H-shape, and their inertial force can be basically balanced. (large compressors are developing in this direction). 4.According to the compression action of the piston, it can be divided into: (1) Single acting compressor: gas is compressed only on one side of the piston, also known as single acting compressor. (2) Double acting compressor: gas can be compressed on both sides of the piston, also known as compound or multi action compressor. (3) Multi cylinder single acting compressor: it uses one side of the piston for compression, while the compressor with multiple cylinders. (4) Multi cylinder double acting compressor: the two sides of the piston are used for compression, while the compressor with multiple cylinders. 5. According to the final discharge pressure of the compressor, it can be divided into: (1) Low pressure compressor: the end discharge pressure is 3 ~ 10 gauge pressure. (2) Medium pressure compressor: the final discharge pressure is 10 ~ 100 gauge pressure. (3) High pressure compressor: the final discharge pressure is 100 ~ 1000 ...

1. What are the main parts of the die casting machine? Answer: the die casting machine is mainly composed of closing mechanism, injection mechanism, ejection mechanism, power (hydraulic) system, control system It is composed of lubrication system, cooling system, etc. 2．What is the tonnage of die casting machine named after? A: the tonnage of die casting machine is named after the maximum clamping force (clamping force). For example, 180t die casting machine, its maximum clamping force is 180 tons. 3. What is the function of the closing mechanism of the die casting machine? Answer: the function of the closing mechanism is to install and fix the die and drive the moving die of the die-casting die to open or close the die. 4. What is the nominal pressure of the hydraulic system of the horizontal die casting machine? A: it is 12 MPa (or 120 kg / cm2). 5. What is the function of the injection mechanism? A: the injection mechanism is a key part of the die-casting process, which makes the metal liquid fill into the mold cavity at a certain speed and pressure from the injection chamber. 6. What are the cyclic action steps of the injection punch during normal production? Answer: the steps are: slow speed (from the beginning of the injection head to crossing the pouring port of the injection chamber)cold chamber die casting machine A rapid (the injection head allows the liquid metal to enter the runner and sprue) II. Fast (make the liquid metal go straight into the inner gate from the beginning to fill the mold cavity) Pressurization (when the liquid metal fills the mold cavity, the pressure of the injection cylinder increases rapidly to a certain value, and the filler metal is compacted and maintained for a period of time)horizontal die casting machine Tracking (at the same time of mold opening, the injection head continues to move forward some distance with the surplus material of gate sleeve) Return (the ejector head returns to the original state and completes a cycle) 7. What are the basic technical parameters of horizontal cold chamber die casting machine produced in China? Answer: there are (1) clamping force (KN), (2) injection force (KN), (3) jacking force (KN), (4) jacking stroke (mm), (5) moving formwork stroke (mm), (6) die thickness (mm), (7) injection chamber diameter (mm), (8) injection specific pressure (MPA), (9) maximum projected area of casting (cm2), (10) maximum metal pouring volume (aluminum alloy) (kg) (11) Working pressure of the system (MPA), (12) spacing within the column (mm), (13) main motor power (kw). 8. What process parameters can be adjusted during die casting production? Answer: (1) mold thickness, (2) mold closing speed, (3) mold opening speed, (4) mold closing time, (5) slow injection, (6) fast injection, (3) slow injection stroke, (8) fast injection stroke, (9) injection pressure (specific pressure), (10) tracking stroke, (11) tracking delay, (12) ejection stroke, (13) ejection speed, (14) ejection delay, (15) Cycle...

1. What parts does the die casting machine die consist of? A: the structure of the die casting die can be divided into the following parts according to its function: (as shown below)aluminum die casting machines  (1)Molding part (dynamic and fixed die casting mold core, molding insert, core pulling, etc.) (2) Mold base part (movable and fixed mold clamping plate, AB plate, supporting plate and mold foot) (3) Bypass system (gate sleeve, splitter cone, runner, inlet bypass) (4) Overflow system (overflow tank, steam exhaust tank) (5) Ejector mechanism (ejector pin, ejector pin fixing plate, ejector plate, reset lever) (6) Guide parts (guide post, guide sleeve, middle guide post, middle guide sleeve) (7) Core pulling mechanism (core pulling slider, inclined guide post, clamping block, spring, etc.) (8) Others (cooling system, heating system, reinforcing column, etc.) 2. What material is the die casting die made of? Answer: the die casting die of our company is mainly made of the following Steels: (1) H13 (heat resistant steel) as front and rear mold core, core pulling core, gate sleeve, shunting cone, etc.) (2) 45 steel (as a and B plates, sliding blocks, inclined guide posts, etc.) (3) T8, T10 (guide post, guide sleeve, thimble, reset rod, etc.) (4) A3 steel (front and rear die clamping plates, supporting plates, thimble plates, die feet, etc.) 3. What is the heat treatment hardness of die casting machine die core? What are the consequences of being too soft and too hard? Answer: the maximum hardness of mold core heat treatment is hrc45 ~ 48. If the treatment is too soft (lower than hrc43), the die core is easy to collapse, deform and stick during die production; If the treatment is too hard (higher than HRC50), the mold core is easy to crack. After nitriding, the hardness of some parts will reach hrc58-60 (such as gate sleeve, insert, etc.). 4. What are the factors considered when selecting the die casting machine for the die casting die? Answer: (1) mold installation (i.e. whether the die casting machine can fit the mold is related to the distance between the inner rod of the Golin column and the position of the pressure chamber); (2) Pouring amount of molten metal (whether the capacity of injection chamber of die casting machine is sufficient); (3) Clamping force (when setting a reasonable specific pressure, the clamping force is enough to lock the mold); (4) Injection specific pressure (to ensure casting quality); (5) Mold opening stroke (able to take out the product).

1. What is die casting? A: pressure casting is referred to as die casting for short. Die casting is the process of rapidly filling the mold cavity with liquid metal under pressure, changing from liquid to solid to form the required products. 2. What are the types of die casting? A: the injection chamber can be divided into hot chamber die casting (commonly used for zinc alloy) and cold chamber die casting (commonly used for aluminum alloy). The pressure can be divided into low-pressure casting (such as automobile wheel shell) and pressure casting (such as pressure casting in our company). The exhaust mode can be divided into ordinary die casting and vacuum die casting. 3. What are the die casting alloy materials? What are their characteristics? A: the commonly used materials suitable for die casting are zinc alloy, aluminum alloy, magnesium alloy and copper alloy. They have the following characteristics: 1). good fluidity in liquid state; 2). Relatively fixed melting point and freezing point; 3). small shrinkage; 4). it has certain high temperature strength; 5). it has good processability and corrosion resistance. 4. What are the main components of die cast aluminum alloy? What are the impurities ? A: the main ingredients are: aluminum, silicon, copper, magnesium, manganese, zinc, etc. Impurities include: iron, zinc, copper, tin, aluminum, sulfur, phosphorus, etc. Different alloy grades have different requirements for their main components and impurity components. 5. What are the main defects of die castings? A: there are under casting (insufficient material), cracks, deformation, cold separation, cold lines, shrinkage, pores (sand holes), mechanical strain, die sticking strain, delamination, wrong die, slag inclusion, surface cavitation, blistering, fleshy, lack of meat, etc. 6. What is the temperature of aluminum alloy liquid suitable for die casting production? Answer: 650 ℃ ~ 720 ℃ 7.What are the characteristics of die casting production? Answer: (1) high production efficiency, which can realize mechanized or automatic production; (2) Good product quality: A. high dimensional accuracy and high surface finish; B. Good mechanical properties; C. Good interchangeability; D. The contour is clear, the casting wall is thin and complex, and the pattern, pattern and text can obtain high definition; (3) Good economic effect: A. excellent economic indicators; B. Low cost of die castings; C. It can be used as part combination; (4) The investment cost of die casting equipment and mould is high, which is not suitable for small batch production.

In accordance with the spirit of the National Day holiday notice of the General Office of the State Council, combined with the actual situation of Bengbu Longhua Die Casting Machine Co., Ltd., after research and decision, the holiday arrangements for the National Day holiday in 2021 are as follows: It will be closed from October 1st to 7th for a total of 7 days. Officially went to work on October 8. 1. The National Day holiday is arranged for a long time. You can arrange to travel and visit relatives and friends. I hope that all colleagues can completely relax themselves during the long holiday so that they can devote themselves to work after the long holiday. 2. The company's security personnel must do the company's security work during the holiday season, patrol from time to time, and report suspicious phenomena in time. 3. All departments must do a good job of safety self-inspection before the holiday, put an end to all sources of fire, turn off the power supply, lock the doors and windows, and ensure safety after leaving the holiday. 4. During the holidays, all departments shall properly arrange the personnel on duty, and the list of personnel on duty shall be reported to the Personnel Department in time. 5. During the holiday, I hope my colleagues can pay attention to the safety of traffic, personal and property. Finally, I wish you all a safe and happy National Day holiday. Bengbu Longhua Die Casting Machine Co., Ltd.

The global die casting machines market size was valued at $3,633.6 million in 2018, and is projected to reach $4,978.7 million by 2026, registering a CAGR of 3.9% from 2019 to 2026. Die casting machine engages in the process of forcing molten metal into reusable metal die under high pressure. Dies are classified into single & multiple cavity and combination dies. This process is utilized to manufacture accurately dimensioned, defined, smooth, and textured surface alloy and metal parts. These metal parts include chassis, air valve, flywheel & bracket, smart locks, and automobiles appliances. Get more information on this report : Request Sample Pages Factors such as growing market for light weight vehicles and increase in adoption of high pressure die casting (HPDC), owing to technological advancements fuel the die casting machines market growth. Moreover, many automotive component producers utilize aluminum die casting machines to manufacture lightweight aluminum cast parts, which are used in automotive assembly. This growing trend of producing light weight metals in the automotive industry, coupled with the growth in automobile sales boost the demand for die casting machinery. However, the volatile prices of raw material may hinder growth of the die casting machine market. Furthermore, technical advancements in die casting machines are expected to offer lucrative growth opportunities for the die casting machines market during the forecast period. For instance, in January 2018 Italpresse Gauss, part of Norican company, developed two energy efficiency solutions, namely, ECO-FIT Mode and ECO-FIT Plus. These solutions are integrated in advanced die casting cells to reduce the energy consumption of machines. On installation, ECO-FIT Plus reduced energy consumption by up to 60%. In addition, the Switzerland based Buhler AG Company offers modern die casting machine, called Datanet, which is equipped with a cell control system that integrates all activities of the system peripherals. These die casting machines include advance diagnosis systems that enhances the die casting process. The global die casting machines market is segmented on the basis of type, material, end-user, and region. By type, it is divided into cold chamber die casting machine, hot chamber die casting machine, and gravity die casting machine. Die Casting Machines Market By Type Gravity Die Casting Machine Segment is projected to grow at a significant CAGR Get more information on this report : Request Sample Pages By material, the die casting machines market is divided into aluminum, zinc, magnesium, and others. By end-user, it is segmented into transportation, mechanical & manufacturing equipment, building & construction, and others. Die Casting Machines Market By End-User Transportation Segment holds dominant position in 2018 and would continue to maintain the lead over the forecast period. Get more information on this report : Request Sam...

Market Overview The die casting machinery market was valued at USD 2 billion in 2020, and it is expected to reach 4 billion in 2026 by registering a CAGR of above 6% during the forecast period, 2021-2026. The COVID-19 pandemic had a profound impact on manufacturing operations, and the market witnessed a slowdown due to supply chain disruptions and trade restrictions worldwide. However, as the production of raw materials is increasing, the market is expected to witness optimistic growth. Factors, such as the growing market for lightweight vehicles and the increase in adoption of high pressure die casting, due to technological advancements fuel the die casting machines market growth. Moreover, many automotive component producers utilize aluminum die casting machines to manufacture lightweight aluminum cast parts used in automotive assembly. This growing trend of producing lightweight metals in the automotive industry, coupled with the growth in automobile sales, boosts the demand for die casting machinery. Additionally, increasing production in the automotive sector has catalyzed the demand for die casting machines in the market. Asia Pacific is estimated to hold a prominent share in the global die casting machines market, due to growing manufacturing industries across the region. Emerging economies, like China, India, etc., are expected to have significant growth in the automotive and other manufacturing industries. Thus, this is projected to significantly drive the demand for die casting machines in the region. Furthermore, the growing demand for industrial instruments is expected to propel the market growth of die casting machines in the North American region. Scope of the Report Die casting is a metal casting process in which molten metal is forced into a mold cavity under high pressure. The machine used for that purpose is known as a die casting machine, used to produce complex shapes with high accuracy, consistency, and precision. The report offers details about the latest trends, technologies, and recent developments. The scope of the report covers segmentation based on machine type, industry, raw material, and geography. By machine type, the market is segmented into cold chamber die casting machines, and hot chamber die casting machines. By industry, the market is segmented into automotive, 3C industry, and other industries. By raw material, the market is segmented into aluminum, magnesium, and others. By geography, the market is segmented into North America, Europe, Asia Pacific, and Rest of the World. For each segment, market sizing and forecast have been done on the basis of value (in USD million). Report scope can be customized per your requirements. Click here. Key Market Trends Growing Adoption of Aluminum in Die Casting Machinery Market The largest segment automobile manufacturers are increasingly looking to is aluminum instead of steel and iron to produce components and parts using die casting machinery, as aluminum is much lighter ...

Main performance of high-precision intelligent energy-saving die casting machine: After Bengbu Longhua Die Casting Machine Co., Ltd. has improved its skills on the basis of innovation and research and development improvements, the supporting motors have been greatly reduced, the product performance has been improved, and the effect of energy saving and emission reduction has been achieved, which is in line with the national die casting machine product quality standards. The latter hydraulic circuit makes the slow injection speed faster, reduces the fast injection opening distance, so that the metal solution achieves a good exhaust effect, thereby reducing the air contained in the solution, increasing the compactness of the product itself, and improving the die casting Quality.   Innovative series of die-casting machine, precision die-casting machine, (high precision, fast speed, good efficiency, good energy saving) Clamping part:   1.The static template, the movable template, the closing cylinder seat, the gantry, the elbow, etc. are made of high-quality precision steel castings, tempered and prestressed, with higher strength, good rigidity, not easy to deform, and not easy to break.   2.The high-precision full gear mold adjustment design ensures that the synchronization accuracy of the four tie rods during mold adjustment is kept above 1:1000 (guide pillar pitch), and the mold adjustment is stable and accurate. 3. The toggle (five holes, three holes, two hollows, crosshead) adopts hydraulically driven mechanical toggle force expansion and clamping mechanism, the clamping expansion force can be enlarged by 16-26 times, and the opening and locking can be multi-level pressure and speed Adjust, and have the function of low-pressure mold protection. According to the production characteristics of die casting, correct mechanics, kinematics calculations and scientific simulation tests ensure that the toggle opens and locks the mold in high-speed operation. Injection part: 1. The injection system adopts a piston-type fast and pressurized nitrogen energy storage design to ensure that the hydraulic system generates sufficient speed and powerful thrust at the moment of injection, and at the same time, it can accurately respond to the control signal of the PLC. , In order to realize the fine adjustment of the injection process.   2. Four-stage injection system: a, slow injection, b, one fast injection, c, two fast injection, d, pressurization, system pressure speed can be adjusted arbitrarily.   3.The hydraulic system adopts dual-circuit (injection, pressurization is relatively independent), dual-proportion (system pressure, system flow are separately regulated), with fast acceleration and short pressure building time, and the qualified rate of die-casting products can reach 96.3%.