Briefly introduce some basic knowledge of sandpaper
Release time:
2021-04-30
Sandpaper is often used as an auxiliary material for abrasive tools. The larger the label, the finer the sandpaper and the smaller the particles. No. 100 sandpaper is also called 100 mesh.
Sandpaper is often used as an auxiliary material for abrasive tools. The larger the label, the finer the sandpaper and the smaller the particles. No. 100 sandpaper is also called 100 mesh. The labeling rule means that the sand is sieved with different screens after crushing. The aperture of the screen is marked by the number of holes per square inch. That is, how many meshes per square inch. After the sand is sieved from coarse to fine screens, sands of different thicknesses are obtained. According to the thickness of the sand, different grades of grinding wheels, oilstone, sandpaper, etc. can be produced.
For softer woods like pine, No. 600 is sufficient. For hardwood materials similar to Fraxinus mandshurica, use No. 1000 sandpaper. Redwood needs to use No. 2000. Use 1000 or more for polishing paint.
Water mills are generally used for machine tools, vehicles and high-grade woodware. Water milling machine tools and vehicles generally start to use water milling from the time the putty is approved. Woodware generally uses water milling in the painting process. The so-called water mill is wet sanding with water when sanding. Generally, clean water and soapy water are used. Depending on different requirements and experience when painting, sometimes painters also use kerosene as a medium. The water mill is mainly to prevent the paint surface from heating and damaging the paint surface during sanding. It also prevents the sandpaper from getting greasy. Dry grinding is to directly polish the workpiece with sandpaper. Water milling cannot be used before the wood is unpainted. Because wood is easily deformed by moisture. Special sandpaper must be used for water milling. That is, water sandpaper. Now I find that many woodworkers and painters don't distinguish water sandpaper, wood sandpaper, or iron sandpaper at all. Water and sandpaper are used a thousand times. In fact, it should be used separately in order to play its due role. Because of various sandpapers according to different requirements, the distribution and density of sand particles on the paper surface and cloth surface are different. Wood sandpaper has a thinner arrangement of sand grains. The main reason is that the wood is relatively soft, and it is not easy to get greasy when it is thinner, and sanding is more efficient. Whetstone is made by pressing and sintering very fine sand grains. There are alumina and carbonization. Generally, more carbonization occurs. And it is generally more green carbon (the color is green).
The mesh number of whetstone is generally above 7-800. Generally used for precision grinding. The machine factory generally uses the lathe to grind the cutting edge. The model worker is used to grind the model. Metering is used for grinding measuring tools and so on.
Phone: +86-13771995217
Phone: +86-18962105917
E-mail: DSA@longabrasive.com
Whatsapp: 0086-13771995217
Whatsapp: 0086-18962105917
Skype: 0086-13771995217
Address: No. 88, Tongjiang Road, Xinbei District, Changzhou City