The concrete block making process needs to go through five links, raw material selection, mixing, forming, demoulding, yard maintenance and other links. In the process of concrete block product forming, it is inseparable from the formal operation of the staff. Only by correctly producing bricks according to the process, can qualified brick products be produced. The rise of oil temperature is a very difficult hidden danger for mechanical equipment, and the rise of oil temperature caused by equipment operating friction is inevitable. How to prevent the rise of oil temperature has become the object of discussion for many brick machine users.
Automatic brick machine forming process steps
1. Raw material technical requirements:
Cement: Ordinary Portland cement 32.5Mpa is preferred, and the cement storage period shall not exceed three months. ?
Sand: Yellow sand with a fineness modulus of 2.0-2.5 should be used, and its mud content should not exceed 5%.
Stone: should comply with the provisions of GB/T14685, and should use crushed stone with a maximum particle size of ￠0-6mm. The mud content shall not exceed 1.5%, and the mud content shall not exceed 0.7%.
2. Mixing:
Mixing time: not less than 1 minute for dry mixing, not less than 2 minutes for wet mixing. , It should be slightly extended in winter. During the mixing process, water should be added as appropriate according to the moisture content of the sand. Before discharging, it should be checked whether the material meets the production requirements. It can be formed into a ball when kneaded by hand, and it can be spread out when the hand is loosened. The humidity of winter material should be a little dry, and the humidity of summer material should be a little wet.
3. Pressurized vibration:
Pull the directional valve of the upper die to naturally drop to the material level, then pressurize, adjust the pressure to 4MPa, press the vibration button, and the vibration time should be adjusted to 3-5 seconds. Height and density consistency. The hydraulic system is controlled at about 4MPa, and it is strictly forbidden to be too high.
4. Demoulding:
After the vibration molding is completed, turn the handle of the directional valve of the drawer to the unloading position, turn the directional valve handle of the upper die to the neutral position to lock the upper die on the product, and then turn the handle of the directional valve of the drawer back to the neutral position. Pull the handle of the lower mold directional valve to raise the lower mold to an appropriate height (the same height as the molded product), then pull the upper mold directional valve to raise the upper mold to the highest point, and then eject bricks. When the finished product is pulled out, it should be checked whether there are slight missing corners, lack of material, cracks, etc. If it is available, it can be repaired manually on site before it can be put on the yard.
5. Yard maintenance:
When stacking the product, gently remove the bricks with forklift and place them on the special iron plate, and clean up the sundries on the iron plate; when moving the bricks, pay attention to the lower half of the product and not touch the surface of the blocks.
After the finished product is demolded for 6 hours (4 hours in summer), the surface of the product should be sprinkled for maintenance; it should be sprinkled normally 24 hours after it is placed on the yard. No less than 4 times a day in summer; no less than 2 times a day in winter. After a week of watering, it can be naturally maintained for 28 days before leaving the factory.
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