Mold use and maintenance manual After the acceptance of the mold, in order to make the mold to maintain the best performance state and prolong the service life, to ensure the normal production and product quality, to reduce the production cost as far as possible, when the mold is used, please follow the following items for necessary maintenance and maintenance. Mold production specification Inspection and installation requirements before mold production Before starting work, you must wear protective equipment, such as hard hat, work clothes and labor protection shoes. Wearing short-sleeved shirts, shorts and slippers is strictly prohibited. Before the installation of the mold, first of all to confirm the die casting machine specifications and mold design requirements to match. The die caster must have a thorough knowledge of the mold structure, including: Check whether the mould has core pulling (dynamic mould core pulling, static mould core pulling, oblique rod core pulling and hydraulic core pulling).         Whether it is necessary to install the pre-reset pull rod or strong spring of the ejector rod. Check whether the combination size of sprue sleeve, flange and melting cup is consistent. Confirm if it is the center sprue. Check the top bar position for no interference and ejection balance. Replace the molten cup punch according to the mold condition and adjust the injection lifting mechanism when necessary. Check the outer fastening bolt of the mold again, and confirm that there is no loosening phenomenon, the mold can be installed on the machine to ensure reliable installation of the mold. Check the die casting machine and mold moving template and static template mounting surface: no foreign body, no high point. Mould in die casting machine, to the right after tighten-up platen and installation is firm, and then to idle mode of the mould, check whether mold opening and closing smoothly and observe its each part movement is flexible, whether there are abnormal phenomenon, the ejection stroke, open schedule is in place, it fits the profile at the closing time, closely linking piece screws are tight, waterway, the oil was clear. Check the running of sliding parts on the mold. Such as guide post, guide sleeve, thimble, push rod ejection and other moving parts (bit) should be observed at any time, regular inspection, timely scrub and add lubricating grease, in order to ensure the normal and flexible operation of these sliding parts, to prevent tight biting dead. Adjust die closing, ejection pressure and distance, and install various auxiliary parts (such as water pipe, oil pipe, air extraction device). During the debugging process, check whether there is any damage, leakage or blockage in the connection of water pipe and oil pipe. When the pressure plate bolts of the mold installation are firm and do not become loose, the mold will continue to open and close the die casting machine for three or four times for debugging. ...

1. It will make the alloy structure in the die casting discontinuous; 2. Reduce the air tightness of the workpiece; 3. Die castings are easily corroded; 4. Reduce the strength and plasticity of die castings; 5. Die castings are prone to cracks; 6. The difficulty of later processing increases; 7. The scrap rate of die castings has increased; 8. Harmful impurities cannot pass through environmental protection.

1. Control the quality of raw materials; 2. The use of secondary materials is strictly in accordance with a reasonable ratio; 3. Use high-quality refining agents for metal smelting; 4. Use ceramic filter; 5. Vacuum melting and conveying; 6. Use ceramic spoons, crucibles, protective tubes, and discard iron tools; 7. Regularly clean up molds, tools, and working surfaces; 8. Use high-quality release agent and other auxiliary materials; 9.Keep the working environment clean.

When summer comes, the maintenance and maintenance of the die-casting machine becomes very critical. As the temperature rises, there will be various small problems of the die-casting machine. So how to maintain the die-casting machine in summer? Longhua die-casting machine is Your detailed explanation: The main reason for the die-casting machine is that its summer is relatively hot, so the oil temperature will be about 20% higher than in the past.In this case, we need to perform necessary replacement and maintenance of the seals during the maintenance process. The reliability of its use can be guaranteed. Die-casting machines have a large demand for cooling water in summer, so the scale in the cooling system of the die-casting machine must be very large, so the waterway needs to be cleaned, and a scale cleaner should be used for cleaning and descaling. Check during the use of the die-casting machine Nitrogen is very sufficient, and ensuring sufficient nitrogen is the key to the use of die casting machine. Before the workers leave work every day, carefully check the oil stains on the die-casting machine, metal, etc., if it is necessary to clean the oil stains on the machine, etc., the most important thing in the maintenance and maintenance of each part of the die-casting machine finishing agent The cleaning of the shooting chamber, etc., clean up the garbage and foreign objects on all parts of the machine, so as to avoid damage to the die casting machine parts when it is turned on again. Check the die-casting machine oil tank, hydraulic pump, hydraulic cylinder, hydraulic motor, hydraulic valve, pipe joints and pressure gauges, and oil circuit board connections for oil leakage before leaving get off work every day. If the die-casting machine has oil leakage, it should be updated immediately. deal with.

Features of Longhua Ladle machine  [use for die casting machine]： 1. Diversified functional options and multi-directional operation methods improve the performance and versatility of this model. 2. the overall structure is driven by a servo motor and a turbo integrated box, and a linkage arm is used. It runs smoothly, accurately and efficiently. It can brake smoothly even if it is told to move, and the filtrate does not overflow. 3.the soup machine is used as an absolute value servo motor, and the coordinates will never be lost, which prevents the use of proximity switches for the soup machine in the past to control the original coordinates. The coordinates cannot be found after a power failure and need to be reset.

Check and analysis of die casting machine fault-Injection pressure: If the pressure of punch drops sharply during injection, check: 1) Whether the injection hydraulic cylinder, pressure reducing valve and cartridge valve are internally discharged. 2) Whether the globe valve is tightened. 3) Whether there is nitrogen, insufficient nitrogen pressure or too high nitrogen pressure. 4) Accumulator is out of order.

After our company's innovation and R&D improvements to improve skills on the original basis, 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 meets the national die casting machine product quality standards. The improved hydraulic circuit, Make the slow injection speed faster, reduce the fast injection opening distance, so that the metal solution achieves a good exhaust effect, and then the air contained in the solution is reduced, so as to increase the compactness of the product itself and improve the quality of the die casting.   Innovative series 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 and so on 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 maintained at 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 carry out 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 at high speed. Injection part: 1. The injection system adopts piston type fast and pressurized nitrogen energy storage design to ensure that the hydraulic system generates sufficient speed and strong 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 and 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%. Hydraulic part:   1. The hydraulic pump adopts Japanese Yuken double pump, which has high efficiency, low noise, energy saving and long life.   2. The hydraulic valve adopts the German Union hydraulic valve, and the PQ valve adopts t...