The damage to the hydraulic valve parts during daily production and use of hydraulic presses is usually caused by the following reasons: 1. Deformation of physical structures due to long-term fatigue and overload. When the stress during work and external load stress during use exceed the yield strength of the part material, physical deformation of the external structure occurs, especially the bending deformation of the valve core of the overflow valve and the spring deformation, the reciprocating operation is inflexible, resulting in unstable system pressure or slow state transition process. 2. The valve core and valve body are seriously worn, and the gap is too large. The valve core and valve body (shelves), etc. are constantly friction during movement and use, causing changes in the size, shape and surface quality of the parts to change, and the quality is reduced and the effect is ineffective. The solenoid reversing valve core is worn and deformed, causing the valve to leak internally, resulting in reduced efficiency or unstable pressure, causing the system to not work normally. 3. The oil is not clean and causes the hairpin to wear, which will cause the hydraulic valve parts to not work normally, and may even cause hydraulic pressure.

2024 Chongqing Lijia Intelligent Equipment Exhibition

From April 23 to April 25, 2025, the highly anticipated Chengdu International Industrial Expo was grandly held in the Western China International Expo City! Our company is honored to participate and sincerely invites you to visit our booth. Our booth number is 16H - B097, and we look forward to meeting you at the exhibition site.

On April 3, our company was honored to welcome the on-site inspection and investigation by Hubei leaders. This inspection not only demonstrates the high attention of local governments to enterprise development, but also builds an important platform for in-depth exchanges between the two sides in industry development and regional economic construction.

Recently, good news came from relevant departments of national standardization management. Many important standards formulated by our company in-depth participation have been officially implemented, marking that our company has made a major breakthrough in the field of industry standardization construction and further consolidated its leading position in the industry. GB/T 44949 - 2024 'Intelligent Hot Stamping Forming Production Line' participating in the formulation of national standards will be officially implemented on November 28, 2024. This standard puts forward comprehensive and meticulous specifications and requirements for the planning, design, manufacturing, installation, debugging, acceptance and other aspects of the intelligent hot stamping production line, which is of great significance to improving the overall quality and reliability of the intelligent hot stamping production line and promoting the technological upgrading of the industry. With our deep technical accumulation and rich practical experience in the field of hot stamping forming technology, our company has deeply participated in the entire process of standard formulation, providing strong support for the scientificity, practicality and forward-looking nature of the standards. With this

Our company has completed assembly of 5 200-ton four-column hydraulic presses, which helps the production of electric heating pipes, 1. Efficient equipment, and completed assembly Recently, our company has successfully completed the assembly of 5 200-ton four-column hydraulic presses. This batch of equipment will be delivered to our well-known old customers, and will be put into the production process of electric heating pipes to contribute to the efficient production of customers.