1. Begin by thoroughly cleaning the stone surface to remove any dirt, debris, or concrete residue from joints. Use a utility knife to scrape out any remaining slurry between the stones and then clean the area with a stiff brush, vacuum cleaner, or other suitable tools. Ensure the ground is completely dry, free of sand, and free from any impurities before proceeding.
2. Once the entire surface is cleaned, address small damaged areas and joints between stones using marble adhesive that closely matches the stone color. Apply the adhesive to the damaged sections, then use a specialized stone cutting machine to re-cut the joints, ensuring even spacing. Fill the gaps with matching marble glue and allow it to fully cure before continuing. This step is crucial for achieving a seamless finish.
3. After the adhesive has dried, use a floor sander to level the entire surface. Pay special attention to the joints between stones, wall edges, and any decorative or irregular shapes to ensure a smooth and even finish. Perform the first round of polishing, then reapply the marble glue in the joints and proceed with a second grinding session. Use a stone refurbishment machine equipped with steel grinding discs, starting from coarse to fine, completing a total of seven grinding stages. Finish with steel wool for a polished look. The final shine should meet the design specifications, with no visible gaps between the stones. For granite, always use bridge mills and professional grinding discs—never resin ones. Coarse grinding must be done with consistent passes and proper disc selection. A 60-mesh disc is typically used to address height differences, color variations, and minor imperfections. Fine grinding should maintain the same number of passes and disc usage for optimal results.
4. Once the polishing is complete, use a water extraction machine to remove any moisture from the floor. Dry the entire surface with a heat dryer if possible, or allow natural air drying if time permits. Ensuring the stone is fully dry is essential for the next steps.
5. Apply a crystalizing solution evenly across the surface. Use a marble polishing machine with a red scouring pad to work the solution into the stone. Sprinkle an equal amount of water and syrup on the floor, then begin grinding. The heat generated during this process helps activate the crystallization, forming a glossy, durable surface layer. This enhances the stone's appearance and provides long-lasting protection.
6. For large gaps or areas requiring additional reinforcement, apply a marble protective agent and re-polish the surface. This step increases the hardness and durability of the crystalized finish, making the floor more resistant to wear and tear.
7. Finally, perform a thorough cleaning and maintenance. Use a vacuum to remove any residue or moisture left after the treatment. Polish the entire floor with a high-quality polishing pad until it achieves a mirror-like finish. If there are any localized damages, they can be addressed immediately without affecting the overall quality. Once the stone surface is fully dry and hardened through crystallization, it should reach the desired gloss level—60 degrees for travertine and over 80 degrees for granite—with no visible height differences between the stones.
The globe valve is used to cut off the flow of the medium. The globe valve is suitable for frequently opened occasions. The sealing parts of the globe valve are the disc and the valve seat. In order to make the globe valve close tightly, the mating surface of the disc and the valve seat should be grinding or using gaskets. The sealing surface can also be inset with bronze, stainless steel and other corrosion-resistant and wear-resistant materials. The disc and stem of the globe valve are connected with each other, so that the disc and stem are closely fitted. The lifting of the disc of the globe valve is generally controlled by the stem. The upper part of the stem of the globe valve is the handwheel, and the middle part is the thread and packing sealing section. The role of the packing is to prevent the internal medium of the valve body from leaking along the stem.
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