According to the relevant provisions of the state "May 1" Labor Day holiday, now the company May 1 holiday time announced as follows: April 30th Saturday - May 4th (Wednesday) for the holiday time. From April 30, the information you post will be under review. We will review it after work on May 5 and ensure that the review will be completed within one working day. We apologize for any inconvenience caused to you. At the same time, the update of all quotation and SMS will be suspended during the holiday. It will be updated normally after work on May 5th, and the quotation updated as usual during the holiday will be reissued in time. Thank you for your support to your company. All the staff of Bengbu Longhua Die Casting Machine Co., Ltd. wish you a happy mood and good health during the May Day holiday! Bengbu Longhua Die Casting Machine Co. LTD April 30, 2022

I. Longhua Servo Spray machine description: Driven by servo reducer, the water mist device is put into the mold cavity for atomization and spraying through connecting rod structure. Two, Longhua servo spray machine technical characteristics 1. Controller and servo motor drive, efficient and stable; 2. Time and amount of release agent can be sprayed separately on fixed and moving die sides Make an adjustment; 3. Steady rising and falling speed, with standby function in advance; 4. With anti-falling device, buffer buffer function; 5.PLC control loop, touch screen adjustment, fault code display function, easy to check and repair. Third. Main parameters of the servo spray machine: 规格/机型Specification/model 2# 4# 5# 6# 适用压铸机型Applicable die casting machine 125-400T 450-900T 950-1250T 1300-1600T 空压源Air pressure source 5-6kgf/㎡ 5-6kgf/㎡ 5-6kgf/㎡ 5-6kgf/㎡ 离型剂Release agent 4.5kgf/㎡ 4.5kgf/㎡ 4.5kgf/㎡ 4.5kgf/㎡ 膜厚调整Film thickness adjustment ±200-250mm ±300-350mm ±400mm ±400mm 电源power supply 380V50HZ 380V50HZ 380V50HZ 380V50HZ 上升时间Rise Time 0.8-1.2s 1.6-2.0s 2.5s 2.5s 下降时间Fall time 1.2s 1.6-2.0s 2.5s 2.5s 机械重量Machine weight 400-450kg 500-550kg 630kg 630kg Fourth, servo spray machine main configuration: 名称 Name 研发单位 型号 R & D unit model 制造商（产地） Manufacturer (origin) 计算机编程 Computer Programming 中国科学院合肥院*蚌埠隆华 Hefei Institute of Chinese Academy of Sciences*Bengbu Longhua 蚌埠隆华（中国） Bengbu Longhua (China) 信捷伺服电机+驱动 Xinje servo motor + drive MS5G-13OSTE-CS05415BZ-20P8-S01 信捷（中国） Xinje (China) 宇形减速马达 Yuxin Gear motor GV18-200-10A 信捷（中国） Xinje (China) 电磁阀 The electromagnetic valve VXD252LG/RV5221-08QE4 SMC（日本） SMC (Japan) 电磁阀 The electromagnetic valve RV5221-08QE4 EMC（美国） EMC (U.S.A) 雾化器Atomizer ST-5 亚德克（中国台湾） Adek (Taiwan, China) 丝杆Screw SFNHRO2510C1DFG7-552-P0 TBI（中国台湾） TBI (Taiwan, China) 操作开关Operation switch XB2BD21C/XB2BD53C 施耐德（法国） Schneider (France) 轴承Bearing 62206-2RS/6206ZZCM/6306ZZCM/6208ZZCM/NJ204EM... NSK(日本) NSK (Japan) 端子盘Terminal board TBC-10 天得（台湾） TEND (Taiwan) 微动开关Micro Switch LXW5-11M 天得（台湾） TEND (Taiwan) 电源供应器Power Supplier NES-50-24 明纬（台湾） MEAN WELL (Taiwan) 可编程控制器PLC Programmable Controller PLC FX5U-40MT/ES 三菱（日本） Mitsubishi (Japan) 尼克拉斯减速机 Niclas reducer BX40E-121-F 苏州（中国） Suzhou (China) 我们有权做任何技术改进而不另行通知

Seven-servo three-machine integrated technical characteristics The amount of soup can be accurately set according to the size of the product to reduce the cost loss caused by artificial operation and fatigue; in addition, it also avoids human safety hazards and increases the output, especially for the fundamental guarantee of product quality. Technical characteristics of servo ladle machine: 1.The main accessories and electrical components are imported and controlled by PLC.Select and set any function of the touch screen; 2.Link structure, double servo motor drive, direct connection of reducer;Improve the stability and service life of the machine; 3.High precision for soup, enhance arm line.Advance speed and smooth operation, efficient production capacity; 4.Arm forward/backward and soup injection/take soup servo motor control, speed;Adjustable speed; motor brake function, aluminum soup is not easy to overflow; 5. With fault code display function, easy to check and repair. Main parameters of servo ladle machine: 规格/机型Specification/model 2# 4# 5# 6# 适用压铸机型Applicable die casting machine 50-400T 450-900T 950-1300T 1600-3000T 最大给汤量Maximum amount of soup 4.5KG 10KG 20kg 35kg 给汤精度Give soup precision +/-1% +/-1% +/-1% +/-1% 给汤速度Speed of soup Max.5-8sec Max.10-15sec Max.15-25sec Max.35sec 坩锅内径Crucible inner diameter Min.300-480mm Min.520-550mm Min.800mm Min.850mm 取汤深度Depth of soup Max.350mm Max.350-450mm Max.500mm Max.500mm 手臂驱动电源Arm drive power 1500W 4P 2000W 4P 2500W 4P 3000W 4P 汤勺驱动电源Drive power for soup spoon 750W 4P 1000W 4P 1500W 4P 2000W 4P 电源power supply 2ø-380V 50-60HZ 2ø-380V 50-60HZ 2ø-380V 50-60HZ 2ø-380V 50-60HZ 电源容量battery capacity 1.5KVA 1.5KVA 1.5KVA 1.5KVA 操作电源Operating power DC24V DC24V DC24V DC24V The main configuration of the servo ladle machine: 名称 Name 研发单位 型号 R & D unit model 制造商（产地） Manufacturer (origin) 计算机编程 Computer Programming 中国科学院合肥院*蚌埠隆华 Hefei Institute of Chinese Academy of Sciences*Bengbu Longhua 蚌埠隆华（中国） Bengbu Longhua (China) 信捷伺服电机+驱动 Xinje servo motor & drive MS5G-130STE-CS07220BZ-21P5 信捷（中国） Xinje (China) 信捷伺服电机+驱动 Xinje servo motor & drive MS5H-60STE-CS0133OB-20P4 信捷（中国） Xinje (China) 人机界面 HMI TG765-MT 信捷（中国） Xinje (China) 轴承 Bearing 6208/6207/6206... NSK(日本) NSK (Japan) 链条 Chain 40M/50# KCM（日本） KCM (Japan)  继电器 Relay RXM2L2B2BD/24VDC/24AC 施耐德（法国） Schneider (France) 高温线 High temperature wire 2.7m*4=10.8m 克拉比（日本） Krabi (Japan) 操作开关 Operation switch XB2BD21C/XB2BD53C 施耐德（法国） Schneider (France) 电源供应器 Power Supplier NES-50-24 明纬（中国台湾） MEAN WELL (Taiwan, China) 尼克拉斯RV减速机 Niclas RV reducer BX40E-153-F 苏州（中国） Suzhou(China) 尼可拉斯行星减速机 Niclas planetary reducer AB60-40 苏州（中国） Suzhou(China) 可编程控制器PLC Programmable Controller PLC FX5U-40MT/ES 三菱（日本） Mitsubishi (Japan) We have the right to make any technical improvements without notice....

In casting production,industrial robots can not only replace people in high temperature, pollution and dangerous environment, but also improve work efficiency, improve product accuracy and quality, reduce costs, reduce waste, and can obtain flexible and durable high speed production process. Longhua technology will be casting technology, casting equipment, industrial robot organic combination, continuous research and development of casting projects in the field of application, has covered die casting machine automation, die casting casting, casting grinding and other fields, mainly involved in core making, modeling, cleaning, grinding, transport and palletizing processes. 1. Gravity casting -- new servo ladle machine The traditional casting mode of gravity casting is artificial spoon to take liquid aluminum casting, high temperature, large handling strength, especially large castings need two spoons to take liquid aluminum casting. This mode will cause poor stability of casting process and fluctuation of casting product quality due to the limitation of operator's physical ability. Not only manpower is too much to bear, quality is also affected. And the use of industrial robot casting, by the robot pouring management software automatic control of the robot according to the set of casting process, product repeatability is consistent, greatly improve the quality of products, the liberation of labor. · 2, die casting machineextract-- new servo auto extractor Die casting workshop high working temperature, labor intensity, the use of robots to replace manual picking and spraying operations, can improve production efficiency and reduce the dependence on manual, more and more die casting factories began to use robots in the die casting link. 3. Die-casting demoulding machine -- new servo auto sprayer The demoulding process in the production of traditional investment casting is generally completed by manual. Some demoulding agent has heavy weight and large labor intensity, while industrial robot has high movement accuracy and large load quality, which can replace manual demoulding operation of die casting parts. Automatic robot in casting production has the characteristics of improving working conditions, saving labor, reducing scrap rate and product cost, improving productivity and product quality, ensuring production safety, accelerating product renewal, and reducing equipment loss, saving resources, clean production and so on.Therefore, improve the level of automation in the foundry industry, strengthen the application of industrial robots in the foundry industry, so as to achieve clean production, increase enterprise benefits. Bengbu Longhua die casting Machine Co., Ltd. has mature experience and technology in the application of automatic die casting machine industry, and is a strong partner of large casting enterprises to realize machine replacement and intelligent production. Longhua, let the world love Made i...

On February 18, bengbu city andHEFEI Institute of Physical Matter, Chinese Academy of Sciencesheld thethird cooperation coordination meeting.Huang Xiaowu, secretary of CPC Hefei Municipal Committee, and Liu Jianguo, president of Hefei Institute of Physical Science, Chinese Academy of Sciences attended the meeting and delivered a speech.Mayor Cao Longcan presided over the meeting.Song Yuntao and Cheng Yan, vice presidents of Hefei Institute of Material Science, Chinese Academy of Sciences; Jiang Haihe, Chairman of Hefei Science Island Holding Co., LTD.;City leaders Ma Tianqi, Wang Qingwu, Ge Rui, secretary general of the municipal government Wu Daojun attended the meeting.Conference heard the work report zhongke bengbu technology transfer center, reviewed the "zhongke bengbu special technology transfer project management method (revised), CST Rio passed medicine scientific research co., LTD., China north industries. 214 research institute, BengbuLonghua die casting machine co.LTD. and other units to report the college cooperation.Participants had discussions and exchanges on strengthening cooperation between the Institute and enterprises and promoting the transformation of achievements. Huang xiaowu welcomed Liu jianguo and his delegation to Bengbu and thanked hefei Institute of Physical Science of The Chinese Academy of Sciences for its support to bengbu's economic and social development.He said that at present, according to the deployment requirements of the provincial Party Committee and the provincial government, Bengbu is focusing on six emerging leading industries such as silicon-based bio-based new materials and new-generation information technology, making every effort to attract investment and promote innovation, speeding up the building of "three places and one district" and two centers, and striving to build a happy Bengbu.Hefei Institute of Physical Science, Cas is one of the largest comprehensive scientific research institutions under cas, with strong innovation capacity and many innovative talents.In recent years, the two sides have deepened practical cooperation and achieved fruitful results.In the face of the new situation and new tasks, the two sides hope to further strengthen communication and exchanges, innovate cooperation mechanisms, and strive for more focused, deeper and more effective cooperation between the Academy and local governments. Huang xiaowu stressed that enterprises should increase visits and research efforts, give full play to the role of Technology transfer center in Bengbu, focus on the scientific and technological needs of enterprises, precise docking and strengthening services, increase efforts to tackle key technologies, enable enterprises to innovate and increase efficiency, and enhance the sense of technology acquisition of enterprises.It is necessary to further build a cooperation platform, further strengthen coordination and cooperation between the two sides, increase the exchan...

01. Brief introduction of die casting industry   At present, the vast majority of die casting machines belong to hydraulic transmission die casting machines, the power of hydraulic transmission system is provided by the motor driven oil pump.  In the process of die casting cycle changes, die casting machine in different processes need different flow and pressure, must rely on flow valve and pressure valve to adjust the different flow and pressure required by different processes.  And when the load change is relatively large, because the output power of the quantitative pump can not be adjusted, so the excess energy can only be consumed in the baffle, oil leakage, oil temperature rise, which also aggravates the wear of various valves, and causes high oil temperature, excessive noise of the motor, and shortened mechanical life and other phenomena.  And usually in the design of the capacity of the motor is much higher than the actual need, there is a "big horse car" phenomenon, resulting in a lot of waste of electric energy.  Therefore, it is of great significance to promote the application of frequency converter in die casting machine to reduce energy waste.       02, die casting machine hydraulic system principle overview     1. Overview of working principle of die casting machine   Hydraulic injection machine is a kind of typical equipment periodic duty, in a complete working cycle (processes) can be roughly divided into clamping, for soup, and shoot, core-pulling, open mode, thimble, cooling, accumulator and so on several stages, each stage is through the oil pump motor pump out of the hydraulic oil into each cylinder drive transmission mechanism through a series of actions,  Each stage requires different pressures and flows.  For hydraulic system, each stage requirements for pressure, flow rate of each different, and the oil pump motor power is based on the maximum load allocation in the process of operation, and the die casting machine of a work cycle, only high pressure clamping and then shoot stage work load is bigger, the other work stage generally small, during the process of cooling load is almost zero.  For oil pump motor, the process of die casting machine is driven by changes in the load state, quantitative pump in hydraulic system, the oil pump motor at a constant speed to provide a constant flow, and the working pressure and flow required size is depends on the pressure proportional valve and flow proportional valve to regulate, by adjusting the pressure or flow proportional valve opening to control pressure or flow rate.  The excess hydraulic oil flows back through the relief valve. This process is called high pressure closure, and the energy loss caused by it is generally around 50%.       2. Overview of energy saving reform principle of die casting machine   According to the working principle ...

The essence of high pressure die casting (die casting for short) is a method that makes liquid or semi-liquid metal fill the cavity of die casting mold (die casting mold) at a high speed under high pressure, and forms and solidifies under pressure to obtain the casting. First, high pressure casting process 1.1 High pressure casting plane layout At present, the general die-casting island will consider the following configuration; Die-casting machine with vacuum, heat preservation furnace is equipped with quantitative casting system, do and product with the type of spraying system, shorten the spraying time, the robot to take parts, slag bag, code cutting and other work, the last cutting to the gate system; The die-casting island can also be upgraded for automated cleaning under high volume conditions. 1.2 APPLICATION of CAE simulation software CAE analysis is more and more widely used in die casting industry, represented by PROCAST, MAGMA, flow-3D, etc. According to the calculation results of filling flow and velocity distribution, the simulation can accurately predict the defects such as enrolling, inclusion and bad filling, which greatly improves the yield and saves a very objective cost. It is a very useful tool to quickly and scientifically design the whole casting system (gate, sprue and overflow tank, etc.) for die casting. Optimize casting process parameters, reduce the number of mold testing, reduce casting cost, improve product quality. CAE software was used for general analysis of filling, solidification, porosity distribution and velocity distribution reports (as shown in Figure 2). 1.3 Application of vacuum die casting With the continuous supply of product quality requirements, the use of vacuum to solve the problem of filling and air tightness of castings has been well developed, and vacuum valve is generally used, the most commonly used vacuum valve has the following two structures. Figure 3 is the schematic diagram of the vacuum valve. Like ordinary die casting process, after aluminum water enters the chamber, vacuumization begins to start. Then, when the die casting machine starts at high speed, the kinetic energy of aluminum water is relied on to touch the spring plate of the vacuum valve. When using a mechanical vacuum valve, it is generally closed when preheating the mold. When the preheating is complete, the vacuum valve can be used only when the high speed and pressurization is started. Mechanical vacuum valve has the advantages of simple use, but the processing accuracy of vacuum valve is high, and the cost of vacuum valve is relatively high. Figure 4 is the schematic diagram of the hydraulic vacuum valve. The principle of the mechanical vacuum valve is the same. When the punch starts, the vacuum starts, but the principle of closing the vacuum valve is different. When the hydraulic vacuum valve is generally started at high speed, the type is sent to the hydraulic system o...

Ways to improve the service life of die casting The durability of the mold depends on: 1) Choose high-quality die steel. 2) Good mold design and manufacturing process. 3) Optimized processing technology. 4) Operation specification, maintenance and maintenance in the process of use. ----------------------------------------------------------------------------------------------------- 1. Mold material selection Material selection determines many important properties of the die, such as plasticity, toughness, thermal conductivity, hardenability, creep strength, high temperature yield strength, resistance to backfire, thermal expansion coefficient and so on. 1) The plasticity, strength and creep strength of materials at high temperature are the main factors to determine the degree of crack generation. The toughness of the material determines the degree of crack propagation. 2) High thermal conductivity can reduce mold temperature difference and reduce thermal stress. 3) Low thermal expansion coefficient means small expansion volume and thermal stress accumulation. 4) High temperature yield strength is beneficial to resist mold cracking. 5) Resistance to backfire is to make the mold has a long time of high temperature resistance to softening performance. 6) Choose high-quality die steel, high purity and uniformity of steel, less impurities is the key to durability. ----------------------------------------------------------------------------------------------------- 2. Good die design 1) The mold structure should meet the requirements of die casting technology, machinability, heat treatment and use. 2) The rationality of the structure: the rationality of the structure is the rational design of the pouring system. After the structural form and layout of the pouring system are determined, it provides the basic basis for the overall design of the mold. 3) Mold wall thickness: the strength and stiffness requirements of the mold should be fully taken into account. When the mold wall thickness is insufficient, the cavity is easy to deform under high pressure. After deformation, the sharp corner or fillet radius which is easy to cause stress concentration will crack. 4) Cooling channel: the reasonable design of the position, spacing and size of the cooling channel can ensure that the mold works within a reasonable and constant temperature range, and avoid the thermal deformation of each part of the mold due to the large temperature difference.