• 2021-11-30

Seven polishing methods for marble Marble decoration is often used for cabinet countertops or floor decoration, and has the characteristics of beautiful decoration and good wear resistance. The marble needs to be polished during use, otherwise it will affect the gloss of the marble surface. So what are the marble stone polishing methods? 1. Dry grinding There are many steps in marble polishing, and it is very complicated. The first step is dry grinding. The purpose of dry grinding is to "peel" the marble. You need to use a stone refurbishment machine to remove stains on the surface of the stone, and polish to make the pores of the stone fine. 2.Dealing with stone stains There are usually many stains on the marble surface, so to polish the marble better, you need to deal with the surface stains. If the stain is difficult to handle, you can use some chemical treatment, then the stain is easy to remove. 3.Waterproof Waterproof treatment is also a good foundation for marble polishing. Waterproof treatment is mainly to prevent wet grinding in the later stage. Some sewage enters the stone, which will have a certain impact on the polishing, and the sewage entering the interior will also affect the quality of the marble. 4. Cut and fill gaps  In order to ensure that the marble surface is very beautiful, slitting, caulking and uniform slitting are very important. The easiest way is to patch the glue, which can easily achieve the beautiful effect. 5. Simple stone polishing Simple stone polishing can be waxed, cleaned, and then polished with steel wool. 6. Surface crystallization Use the crystal surface machine, scouring pad and crystal powder to make a protective layer on the surface of the marble to prevent stains on the stone, prevent scratches, and improve the brightness of the stone. It is understood that the duration of this protection is about one year. 7. Waxing Waxing can also increase the brightness of the marble and also protect the surface of the marble. The validity period of waxing can be maintained for 3 months. But it is not recommended to wax.

• 2021-11-27

Technical terminology of the flooring industry 1. Tack-free time For a certain thickness of wet paint film, the time it takes for the surface to change from liquid to solid 2. Working time The time required from the application of a certain thickness of the liquid paint film to the formation of a solid paint film 3. Transparency Transparency can indicate whether varnishes and paints contain mechanical impurities and the ability of turbid substances to transmit light 4. Density Under the specified humidity, the common unit of mass per unit volume of an object is kilogram per cubic meter (kg/m3), gram per cubic centimeter (g/cm3) 5. Viscosity The internal resistance of a liquid to flow 6. Solid content The amount of non-volatile matter contained in the coating is generally expressed as a percentage of the mass of the non-volatile matter, and can also be expressed as a volume percentage 7. Storage stability Under the specified conditions, the degree of resistance of the coating product to changes in performance such as peculiar smell, consistency, crusting, coarsening, sinking, agglomeration, etc. after storage 8. Compatibility The ability to mix one product with another without causing adverse consequences (such as precipitation, coagulation, thickening, etc.) 9. Grinding fineness A measure of the degree of dispersion of pigments and extender pigments in paints, that is, under specified conditions, the reading obtained on a standard fineness meter. This reading indicates the depth of a groove on the fineness meter, generally expressed in microns. 10. Hiding power The ability of the color paint to eliminate the color or color difference on the substrate 11. Recoatability The difficulty and effect of multi-layer coating of the same paint 12. Paint film thickness A measure of the thickness of the paint film, generally expressed in microns 13. gloss An optical property of a surface is expressed by its ability to reflect light 14. Constructability The difficulty of paint application. Good paint application. Generally, it means that the paint is easy to apply and has good leveling, no sagging, wrinkling, edge shrinkage, bleeding, biting, moderate dryness, easy sanding, and good recoatability. And low requirements for construction environmental conditions 15. Adhesion The firmness of the bond between the paint film and the coated surface The coated surface can be a bare substrate or a painted substrate 16. Hardness The ability of the paint film to resist mechanical forces such as collision, depression, scratching, etc. 17.flexibility The ability of the paint film to deform with its substrate without being damaged 18. Wear resistance Resistance of paint film to friction 19. yellowing The tendency of the paint film to turn yellow during the aging process 20. Temperature resistance The ability of the paint film to maintain its original performance after being subjected to alternating temperature changes with cold and heat 21. Send flowers Color paints contai...

• 2021-11-20

Why does the polishing machine need to set the speed? Because when everyone uses the polishing machine, they use different turntables and grinders. Use a coarse polishing disk such as a wool disk to increase the speed to easily wear through the polished part, so the speed is generally set at 800 to 1200/min. Similarly, if a coarser abrasive is used, the speed also needs to be lowered. In other cases, in order to improve the polishing quality, it needs to be carried out in different steps. Rough polishing and fine polishing are performed. The speeds of these two stages are different. Rough polishing requires a low rotation speed of the turntable, preferably not more than 600r/min; the polishing time should be longer than the time required to remove the scratches, because the deformed layer must be removed. After rough polishing, the grinding surface is smooth, but dull and dull, and there are even and fine wear scars observed under the microscope, which need to be eliminated by fine polishing. The speed of the turntable can be appropriately increased during the fine polishing, and the polishing time is appropriate to throw away the damaged layer of the rough polishing. That's roughly the reason for the above.

• 2021-11-17

How to deal with the different abrasive wear of floor grinders After the floor construction, the floor grinder needs to be maintained and repaired frequently to avoid machine failure during construction without knowing it. In addition, any problems arising from the floor grinder during floor construction must be dealt with in time, otherwise, it will affect the resulting ground effect. The difference in abrasive wear is also a problem that needs attention. Learn to judge and deal with it. Whether the abrasive wear of the machine is different can be judged from these points: ①The buffer rubber is aging or damaged; ②The grinding disc is not in the same working plane; ③The buffer spring is damaged. According to construction practice and technical experience, these two methods can be adopted to solve the problem: ①Replace the cushion rubber pad; ②Adjust the fastening bolts to keep the grinding disc on the same plane

• November 12, 2021

The specific role of concrete curing After the concrete is poured before the floor construction, we need to choose the appropriate maintenance method according to the actual situation. The curing time also varies with different cements. However, how does the curing agent work? What is concrete curing? The process of ensuring the smooth progress of cement hydration in fresh concrete is called curing. Concrete curing generally refers to maintaining a certain degree of humidity. In the case of sufficient moisture curing, the cement can reach the maximum degree of hydration, but in the case of rapid drying, only a limited degree of hydration can be achieved. If the cured concrete is not good enough, the quality will not be achieved. The role of conservation Generally, the mixing water consumption of concrete must be greater than the water requirement of cement hydration. However, after the initial setting of concrete, water loss due to evaporation or other reasons will affect the full hydration of the cement. Especially on the surface layer of concrete, when the concrete dries to a relative humidity below 80%, the hydration of the cement tends to stop, which damages the various properties of the concrete. The surface concrete is very important to the durability, abrasion resistance and appearance of the concrete structure, so the maintenance of the surface concrete is very important. The loss of surface moisture not only affects the surface layer of the concrete, but also because the moisture inside the concrete exists in the capillaries, the moisture will rise or fall along the capillaries. When the surface moisture is insufficient, the moisture in the capillaries will continue to rise to the concrete. On the surface, the moisture will evaporate further and will gradually affect the insufficient moisture inside the concrete. Therefore, during the curing of concrete, it is necessary to ensure that the surface of the concrete has sufficient humidity, and at the same time, the evaporation of water must be prevented. Generally, the concrete must be kept wet after pouring. The curing time varies from cement to cement, and generally takes 7-14 days. If conditions permit, you can take cover wet cover, you can also sprinkle cover. For structures that do not have conditions to cover wet curing and water spray curing, concrete curing agent can be sprayed on the concrete surface for curing. For example, some complex parts of structures, water-deficient areas and so on. The curing agent curing method can effectively prevent the concrete moisture from evaporating, keep the internal moisture of the concrete, and enable the hydration to proceed fully.

• 2021-11-05

Little knowledge about industrial vacuum cleaners（2） What can be done to extend the service life of industrial vacuum cleaners? If you want to extend the service life, you need to pay more attention to the maintenance of industrial vacuum cleaners. 1. Before use, first check whether the garbage in the vacuum cleaner is cleaned, and then check whether the plug and socket are clean and free of foreign matter. The last thing is to check whether the machine is normal, and then you can start using it. 2. In use, of course, maintenance is also required during use. Industrial vacuum cleaners want to extend the service life, and you must pay more attention to the usual bit by bit, so you must not allow the machine to be transported alone when using it. It must be supervised by someone, and then it is not possible to keep the industrial vacuum cleaner running for a long time, because the power of the industrial vacuum cleaner is very large, if it is operated for a long time without stopping, it is easy to cause damage, so if the machine is found to be damaged If it is hot, you need to stop and stick to it. Finally, you need to pay attention when using it. Do not let the industrial vacuum cleaner clean up corrosive garbage or glass and other sharp garbage, which will easily cause damage to the industrial vacuum cleaner. 3. After use, the industrial vacuum cleaner needs to be cleaned after use. At the same time, when wiping the industrial vacuum cleaner, it must not be cleaned with corrosive cleaning agents. At the same time, the body must be wiped clean after cleaning. Come down. Therefore, in fact, industrial vacuum cleaners need to be maintained before, during, or after use. Industrial vacuum cleaners can extend their service life only when they are maintained in the usual spot.

• 2021-11-02

Little knowledge about industrial vacuum cleaners（1） With the advancement and development of science and technology, industrial vacuum cleaners have become indispensable equipment in factories. After long-term use, we will find that the suction power of industrial vacuum cleaners gradually decreases. So why? Insufficient suction: 1. The suction power is insufficient when opened for the first time Please check whether the links between all the components are installed properly, just reinstall the components that are not installed. If the link between the parts is not sealed, it will cause insufficient suction. 2. The suction power is found to be insufficient while in use Please check if there is any foreign matter blocking the air inlet; Please check if there is any foreign matter blocked in the hose; Please check whether the dust or water in the collection bucket is full; Please check whether the exhaust vent is blocked by foreign objects; Please check if the filter is blocked by dust； Please check whether the links between all components are falling off; Please check if the liquid level protector is blocking the air inlet of the motor compartment.

• 2021-10-30

Safety regulations and precautions for floor construction In the construction of the floor, there is a very critical thing that surrounds all the construction phases. It is not the lowest level solution, nor is it the application of raw materials. The most critical thing is the hidden danger of construction safety. Floor construction safety measures must be learned from the beginning of the floor construction team entering the site. The elite team of floor construction must implement safety measures at every stage before, during, and after floor construction. Let's take a look at how the elite construction team has taken safety measures. Electricity safety measures 1. Wiring must be undertaken by full-time personnel and monitored by full-time personnel. 2. Connection without a power plug is strictly prohibited. 3. Machinery and equipment with grounding device regulations must have good grounding devices. 4. If the route of machinery and equipment is damaged, it cannot be applied if it is not solved. 5. It is strictly forbidden to touch the machinery and equipment on the spot. Avoid fire accidents 1. New decorative materials, adhesives and other flammable raw materials should be stored in a warehouse that is free from open flames. 2. Fireworks are strictly prohibited on the construction site. 3. If the road surface is wet and cold, it must be air-dried. It should be sprayed on the epoxy floor before the raw materials enter the spot. Avoid flammable vapor damage 1. New decorative materials and adhesives should be stored in a closed manner. 2. The portable agitator at the construction site should be used in a cool place outside the site. 3. The application of electric grinders on the spot must be carried out under the conditions of dry roads and natural ventilation in the natural environment. Other security measures 1. Remove dirt on the road surface, ensure the safety passage is unobstructed, and avoid injury caused by falling over. 2. Keep water on a quiet road or set up grass mats to prevent injuries from falling. 3. In winter construction, the working temperature of the construction site should be ensured to avoid safety production accidents caused by excessive wearing and inconvenient actual operation. 4. Pay attention to heat reduction during summer construction, and pay great attention to avoid the damage of volatile vapors in spraying new projects. Rotating work hours should be reduced. 5. Lighting fixtures with sufficient chromaticity should be ensured during night construction. 6. Drunk construction is strictly prohibited. 7. Construction with diseases is strictly prohibited. 8. It is strictly forbidden to work day and night and the staff tired due to the tight schedule.