The working speed of the hydraulic press is significantly slower than the return speed. This is not because it is technically impossible to achieve high speed, but because it is an active design trade-off based on power balance and molding process requirements. The core logic revolves around the inherent constraints of the hydraulic system 'pressure-flow-power' and is combined with the core demands of its industry application scenarios. The following is a detailed analysis from the four dimensions of principle, difference comparison, design consideration and application adaptation: 1. Core principle: 'Power Balance Law' of the hydraulic system The operating speed of the hydraulic machine is directly determined by the flow rate of the hydraulic oil (the greater the flow rate, the faster the actuator is pushed), and the core constraint of the system comes from the power limit of the hydraulic pump. The relationship can be expressed intuitively through the formula: Pump power (P) = Working pressure (p) × Flow (Q) (Note: The formula is a simplified model, the actual system efficiency needs to be considered, but the core logic is the same) The rated power of the hydraulic pump is a fixed value (determined by the motor power), so 'pressure

The return spring of the reversing valve of the hydraulic press not only has insufficient elasticity, but also has a skew phenomenon, causing the spool of the reversing valve to fail to return to its original position after a power outage. Therefore, the opening of the slide valve is too small, which throttles the oil passing through the reversing valve. The initial movement of the hydraulic cylinder is slow. When the temperature is low, the viscosity of the hydraulic oil is relatively high and the mobility is poor, resulting in the slow movement of the hydraulic cylinder. If the outside temperature is really too low, you can use a heater or corresponding insulation measures to increase the oil temperature at startup. The contamination of the oil should be checked; check whether dirt or colloid deposits are blocking the valve core or valve hole, and check the wear of the valve body. The throttling resistance in the control pipeline may be too large, the flow valve is improperly adjusted, the control pressure is inappropriate, and the pressure source is interfered with. The control pressure of the hydraulic system of the hydraulic press is too low. The piston rod of the hydraulic press is stuck with the cylinder or the hydraulic cylinder is blocked. The way to cover it is to promptly replace the hydraulic oil with better viscosity and temperature resistance. If the outside temperature

When a failure of the hydraulic press cannot rise, it usually manifests as if the pressure-regulating handwheel is fully tight, the pressure can only rise to a certain value and cannot continue to rise, especially when the oil temperature is high, which is particularly obvious. So what are the reasons for the pressure not rise? 1. Check whether the cartridge valve and the reversing valve are stuck 2. Check the circuit failure, which may be the main reason for the inability to rise under normal circumstances. It is recommended to use a screwdriver to stab the small reversing valve to see if it is stuck, and then check whether the indicator light of the rising small valve is on. 3. The main relief valve in the four-column press system is worn seriously, causing overflow and debris, which is why it is stuck. 4. The flush valve on the upper part of the oil cylinder is not opened, so it cannot rise under normal circumstances. 5. Check whether the oil cylinder is broken. 6. Whether the four-column press system is adjusted and balanced and stuck the beam, of course, there are not many such problems. 7. Total pump flow

You can use the following methods to determine whether the oil filter of the oil press is blocked: 1. Observe the appearance of the oil filter: Check the oil filter housing. If there is obvious accumulation of sludge and dirt, or there is obvious oil stain attachment in the inlet and outlet pipelines of the oil filter, it may imply that the oil filter is blocked. In addition, some oil filters have clogged indicators that indicate that the oil filter is clogged when the indicator shows a red or a warning sign pops up. 2. Feel the oil temperature change: blockage of the oil filter will cause the oil to flow poorly, causing the system to heat up and the oil temperature to rise. Therefore, if it is found that the oil temperature rises faster than usual during normal operation of the oil press, or the oil temperature is significantly higher, consider whether the oil filter is blocked. However, the increase in oil temperature may also be caused by other reasons, such as cooling system failure, and comprehensive judgment is required. 3. Check system pressure: Blockage of the oil filter will increase oil flow resistance, resulting in system pressure drop or instability. If the hydraulic press is working

At present, it is the peak period for mosquito-borne infectious diseases such as chikungunya fever. In order to effectively prevent and control mosquito-borne diseases such as chikungunya fever and dengue fever, and to ensure the health of the people, the party organizations in Banfu Town have taken active actions. The Bada Party Branch actively responded to the call. From late July to early August, it organized party member volunteers to participate in chikungunya fever prevention and control and human settlement environment improvement volunteer activities, contributing to protecting residents' health. On July 28, party member volunteers from Bada Branch went to Huzhou Village to carry out prevention and control volunteer activities. During the event, volunteers found that some residents had piles of wooden huts and wet wooden huts in their homes. These hidden and humid environments are very likely to become breeding grounds for mosquitoes. Volunteers worked together to help residents rectify these areas, pick and remove some houses with hidden dangers, reduce mosquito habitats from the source, and reduce the risk of mosquito-borne infectious diseases.

Thanksgiving comes, and we open a new chapter together - Our company debuts at the first Shanxi (Dingxiang) Flange Forging Industry Expo in July, and the forging industry is in full swing. The grand opening of the first Shanxi (Dingxiang) Flange Forging Industry Expo not only sets up a new platform for exchanges and cooperation for the industry, but also gives us the honor to gather at the booth with the leaders of the Shanxi Provincial Department of Commerce, the Dingxiang County People's Government and the Hubei Forging Association, draw strength to forge ahead through careful guidance and anchor the development direction in in-depth exchanges. This trust and affirmation is not only a recognition of our deep cultivation and forging of strength in the field, but also an expectation for us to take root in Shanxi and serve regional industrial upgrading. As active participants in the first expo, we are well aware of the milestone significance of this grand event - it is not only a concentrated display of the industrial heritage of Dingxiang' 'China's Forging Hometown' but also an important signal for Shanxi's forging industry to move towards high-quality development. From displaying technical achievements at the booth to the same as the industry