Stainless steel gate valve shaft packing requirements:
1, valve packing should also withstand frequent opening and closing, the sealing effect of the permanent;
2, in view of the above requirements, valve shaft packing for life or do not change for more than 10 years;
3, If the packing needs to be replaced, the design of the pneumatic valve should consider the measures that can be replaced under the condition of water pressure;
4, due to the network of soft seal gate valve, usually not frequently open and close, requiring filler inactivity within a few years, the filler is not aging, long-term sealing effect.
Die casting: an important cornerstone of the foundry industry
Die casting technology is an important metal forming method, which is widely used in the casting industry. As the core component of die casting process, die casting mold frame plays a crucial role in ensuring the quality and production efficiency of die casting parts. This paper will discuss the related knowledge of die casting mold frame, including its structure, characteristics, application and development trend.
First, die-casting mold frame overview
Die casting mold frame is used to fix and support die casting mold frame structure, mainly composed of base, guide system, pouring system and overflow system. In the die casting process, the role of the die casting frame is to ensure the stability and accuracy of the die, thereby improving the quality and production efficiency of the die casting.
Second, the development of die casting mold frame
The development of die casting technology has gone through many stages. The earliest die casting mold frame is mainly made of wood and steel, and with the continuous development of technology, it has gradually evolved into a modern mold frame made of advanced alloy steel and aluminum alloy materials. In recent years, with the rise of 3D printing technology, personalized die-casting mold stands have also become possible.
3. Maintenance and maintenance of die casting mold frame
As the core equipment of die casting production, its maintenance and maintenance is of great significance for prolonging its service life, improving production efficiency and reducing production cost. The following are common maintenance and maintenance measures for die casting mold frames:
1. Regular inspection: Regular inspection of the various parts of the die casting mold frame, including the guide column, guide sleeve, gate, runner and other parts to ensure its normal operation.
2. Lubrication maintenance: Regularly lubricate the sliding part of the die casting mold frame to reduce wear and improve the service life of the equipment. Generally, professional grease is used for lubrication.
3. Cleaning and maintenance: Regularly clean the dust, oil and other impurities on the surface of the die casting mold frame to keep the equipment clean and tidy.
4. Preventive maintenance: For the common faults and wear parts of the die casting mold frame, preventive maintenance and replacement are carried out in advance to avoid the failure of the equipment in the production process.
5. File management: Establish the file management of the die casting frame, record the purchase time, use time, maintenance records and other information of the equipment, so as to facilitate the tracking and management of the equipment.
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