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Yuhuan Mingzhe Hydraulic Tools Co., Ltd

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04

2023

How to deal with oil leakage in four column hydraulic press

Oil leakage is a concern for the operator of a four column hydraulic press. Subsequently, there is a decrease in hydraulic press pressure, waste, and contamination of hydraulic oil. The oil leakage at different positions has different effects on the four column hydraulic press, so it should be noted not to ignore them.

04

2023

Maintenance methods for hydraulic press

1、 Pre use maintenance (1) Check whether the oil pool, oil level, and oil gauge meet the specified standards. If they do not meet the standards, they should be replenished in a timely manner.

04

2023

Forming of Elastomer Materials and Epoxy Resin Rubber Plastic Products

Elastic Resin Molding (ERM) is a new technology application that emerged in Europe and America in the 1980s. It uses flexible material (open cell polyurethane foam) as the core plate and penetrates into the epoxy resin paste. This kind of foam containing epoxy resin paste is left in the middle of the well formed ERM raw materials. Foam plastic reduces the relative density of goods made by ERM, and improves the impact strength and stiffness, so it can be regarded as a composite structure goods formed by pressing.

04

2023

What should a multi-functional hydraulic press do when encountering slow or even low-speed crawling?

When a multi-functional hydraulic press is working, the hydraulic press has a large load and high working pressure. Therefore, in order to ensure that the hydraulic pump is not overloaded, it is necessary to reduce the flow rate, that is, to reduce the working speed of the multi-functional hydraulic press. When the hydraulic press returns, its load will be smaller and the working pressure will be lower. Therefore, while ensuring that the output power of the hydraulic pump is not exceeded, the flow rate can be increased, thereby increasing the working speed of the hydraulic press. Generally speaking, the starting speed of a multifunctional hydraulic press is only related to the flow rate. In other words, if the traffic is large, the speed is fast, the traffic is small, and the speed is slow. So, what should a multi-functional hydraulic press do when encountering slow or even low-speed crawling?

04

2023

How to prevent corrosion of four column hydraulic press

The four column hydraulic press has light corrosion, affects work efficiency, reduces production, severely shuts down, and even pays maintenance costs.

04

2023

Do you know the correct oil change process for a 400 ton stamping machine?

There are many hydraulic components on a 400 ton hydraulic press that require sufficient hydraulic oil. When hydraulic oil deteriorates due to prolonged use, some people mistakenly believe that only the oil in the hydraulic tank needs to be drained and filled with new hydraulic oil. But currently, there is still a large amount of old hydraulic oil in the hydraulic oil pipes and hydraulic control valves, and the equipment for mixing new and old oil will accelerate the conversion rate of new oil. The correct oil change process for a 400 ton hydraulic press should mainly discharge the hydraulic oil tank, clean the tank, add new hydraulic oil, and then remove the circuit main pipe. It is recommended to operate the oil pump at low temperatures, arrange for each operation, and rely on the hydraulic oil to discharge the old oil one by one until new oil flows out of the pump main pipe and stops. Finally, the pump main pipe is connected to the oil tank to replenish new hydraulic oil to the specified position.

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