Recycled sand equipment manufacturers talk about what should be paid attention to in the production of coated sand equipment?
Release time:
2022-05-27
Recycled sand equipment manufacturers talk about what should be paid attention to in the production of coated sand equipment?
Recycled sand equipment manufacturers: coated sand equipment production need to pay attention to what?
Coated sand equipment has high strength, good comprehensive performance, uniform film coverage, full monitoring, effective guarantee of finished sand quality, low energy consumption and high production efficiency. Here, reclaimed sand equipment manufacturers introduce some precautions in the production of coated sand equipment.
Matters needing attention in the production of coated sand equipment:
1. Dust removal and dust prevention work should be carried out regularly, check whether the dust collector is running normally, and replace the dust removal bag that is damaged or used for too long to prevent excessive dust from affecting the quality of the coated sand.
2. Improve the utilization rate of old sand, the recycling of old coated sand reflects the use and circulation of resources, reduces the casting waste, turns the old sand into raw materials, realizes the recycling, reduces the environmental pollution of the old sand, saves raw materials, improves the bonding strength and reduces the amount of phenolic resin.
3. Pay attention to the ambient temperature: the silicon oxygen bond activity of recycled sand becomes stronger, which improves the coating characteristics of phenolic resin, thus improving the adhesion of sand and resin, preventing slag inclusion in castings, adjusting the ambient temperature can improve productivity, reduce sand mold damage and casting defects, reduce the amount of resin added, save costs and reduce environmental pollution.
In order to reduce the impact of emergencies in the production process, the coated sand equipment should be carefully checked before production every day. For the damaged ground, the lubricating part and the mechanical part should be repaired and replaced in time. After the sand coating equipment is completed, the use of the equipment should be registered.
Recycled sand equipment manufacturers talk about the causes of sand core deformation of coated sand production equipment
Coated sand production equipment is now more and more people are familiar with, coated sand production equipment sand core why deformation? This has become a question in the minds of many people, the specific reasons are as follows:
When the pressure of the mold is under the action of the air cylinder or the air cylinder and the positioning pin at the front end is an inclined plane, the mold of the coated sand production equipment may be tight, but the sand core will still return to the original fracture or deformation state in the mold opening and static state. In this case, the sand will run away and the sand core size of the coated sand production equipment will become larger. In this case, the mold should be adjusted in time.
In the production of hollow sand core of shell core machine, it is necessary to pour unhardened sand from the core sand of coated sand production equipment by using coated sand without doping: 7 to ensure the surface quality and strength of the core sand of coated sand production equipment.
The spring at the top of the hot core box mold will break or deform the sand core of the coated sand production equipment due to the elastic damage caused by long-term work at high temperature, so the spring should be replaced in time.
The sand core will stick to phenolic resin and sand, and must be cleaned in time and sprayed with release agent, otherwise the sand core of the coated sand production equipment will accumulate and open when it breaks or deforms.
The above is the content explained by the small editor of the recycled sand equipment manufacturer. I hope it can help you. Thank you for your patience. See you next time.
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