What processes are required for the construction of the paint during construction? What is the acceptance criteria after the construction of the paint?
1. Check and clean the base layer for dust, oil, and impurities on the surface of the base. Is the base layer firm and firm, whether the base layer has cracks, whether it is flat, vertical, and dry.
2, the grassroots treatment is qualified is the base layer is the protection of the paint beautiful, durable, due to the grassroots factors (such as cement mortar or wall cracking) caused by cracking of the putty layer, coating layer is a common disease. The treatment of bandages in the base layer is a common method for interior wall finishing. If the original white wall surface is inferior glue, it should be reinforced with alkali-resistant primer, and the powder on the wall should be removed.
3. The wooden board is closed to avoid deformation and transparency of the board surface.
4. The patchwork bandage ensures the flatness and firmness of the interface around the seam, which is the key point of the seam. Applying two layers of bandages reduces cracking in the coating layer.
5. The flatness of the local batch of putty base layer is not enough. It is necessary to level the scraping putty for the local uneven parts. However, when the deviation of the flatness of the base layer exceeds 8mm, the thick layer of the putty can not be leveled, and the cement mortar is used for leveling.
6. Smooth the putty to ensure that the base layer is roughly flat.
7, the first road full of putty construction efforts to not expose the bottom, no leakage, no seams.
8, the second full of putty putty is generally scraped twice to survive, each time the putty layer scraping time should not be too long, the thickness of putty is 1~3mm.
9. Ensure that the yin and yang angles are linear.
10, the third full of putty putty When there is a high demand for the flatness of the wall surface, the putty scrap can be increased once, but the thickness of the final putty putty should not be less than 0.8mm.
11. The fine grinding leveling paint has higher requirements on the flatness of the putty layer. It should be polished and smoothed when grinding. The putty layer should not be too hard, so as to avoid the smoothness of the putty layer after polishing, no fine sand marks, which is not conducive to the bite of the paint on the putty layer.
12. The function of the primer layer in the first pass is alkali-resistant closure. Reinforce the putty and cover the fine sand marks, so the first coat layer should try to make the putty layer penetrate.
13. The putty layer appears broken during the grinding of the putty. When sanding the hole, make up the putty after finishing the first coat.
14. After the smoothing of the putty, leave traces, which should be smoothed to avoid affecting the integrity of the paint.
15. The second time of the primer to ensure the surface coating effect, the total thickness of the primer should be 30mm, should not be tempted to save labor, save material and only the primer.
16. Smoothing the leveling of the primer is not enough. It should be polished in the upper layer to ensure the smooth surface coating.
Rotary Lobe Pumps In Food Sauce
Sanitary grade lobe pump is one of the products specially developed by Durrex pumps company to meet the customers in the production process of high hygiene requirements. Working chamber has sanitary rotor, rotor locking nut O - ring, pump body without sanitary dead angle and Higher hygienic grade. Support CIP, SIP. The surface roughness is 0.2--0.8um, in accordance with 3A, FDA standards. Can be widely used food, medicine and other materials with high requirements for hygiene level.
Lobe pumps in food industry/ rotor pump in food industry/ Rotary lobe pumps
NINGBO DURREX PUMPS CO.,LTD , https://www.durrexlobepump.com