Introduction to Stainless Steel Polishing Technology
The various surface treatments provided by stainless steel have broadened its application fields, and different surface treatments make stainless steel surfaces unique and unique in their applications. There are many reasons why the surface processing of stainless steel is important in the field of construction applications.
1、 Basic Types of Surface Processing
There are roughly five types of surface processing that can be used for stainless steel, which can be combined to produce more final products.
There are five types:
1. Rolling surface processing
2. Mechanical surface processing
3. Chemical surface processing
4. Mesh surface processing and color surface processing
There are also some specialized surface treatments, but regardless of which surface treatment is specified, the following steps should be followed:
1. Agree with the manufacturer on the required surface processing, preferably preparing a sample as the standard for future mass production.
2. When used in large areas, such as composite boards, it is necessary to ensure that the substrate rolls or materials used are from the same batch.
3. When selecting surface processing, consideration should be given to the manufacturing process, such as grinding the weld seam to remove weld beads and restoring the original surface processing. Patterned boards are difficult or even unable to meet this requirement.
4. For some surface processing, grinding, or polishing patterns, there is directionality and they are called unidirectional. If this pattern is made vertical rather than horizontal when used, dirt will not easily adhere to it and it is easy to clean.
2、 Rolling surface processing
There are three basic types of rolling surface processing for plates and strips, which are represented by the production process of plates and strips.
No.1: After hot rolling, annealing, pickling, and descaling. The surface of the treated steel plate is a dull and somewhat rough surface.
No.2D: It has better surface processing than N0.1 and is also a dull surface. After cold rolling, annealing, descaling, and finally lightly rolling with a rough roller.
No.2B: This is the most commonly used method in construction applications. Except for the final light cold rolling with a polishing roller after annealing and descaling, other processes are the same as 2D, with a slightly shiny surface that can be polished.
No.2B Bright Annealing: This is a reflective surface that is rolled by polishing rollers and finally annealed in a controlled atmosphere. Bright annealing still maintains its reflective surface and does not produce oxide skin. Due to the absence of oxidation reactions during the bright annealing process, there is no need for further pickling and passivation treatment.
3、 Polished surface processing
No.3: Represented by 3A and 3B. 3A: The surface is evenly ground with an abrasive particle size of 80-100. 3B: Rough surface polishing, with uniform straight lines on the surface, usually made by polishing with a grit size of 180-200 on a 2A or 2B board in one go.
No.4: Unidirectional surface processing, with low reflectivity, may be the most widely used in construction applications. The process step is to first polish with coarse abrasive, and then grind with an abrasive with a particle size of 180.
No. 6: It is a further improvement on No. 4, which uses a Tempico polishing brush to polish the surface of No. 4 in abrasive and oil media. The surface finish is not included in British Standard 1449, but can be found in American standards.
No.7: Referred to as bright polishing, it refers to the process of polishing
1、 Basic Types of Surface Processing
There are roughly five types of surface processing that can be used for stainless steel, which can be combined to produce more final products.
There are five types:
1. Rolling surface processing
2. Mechanical surface processing
3. Chemical surface processing
4. Mesh surface processing and color surface processing
There are also some specialized surface treatments, but regardless of which surface treatment is specified, the following steps should be followed:
1. Agree with the manufacturer on the required surface processing, preferably preparing a sample as the standard for future mass production.
2. When used in large areas, such as composite boards, it is necessary to ensure that the substrate rolls or materials used are from the same batch.
3. When selecting surface processing, consideration should be given to the manufacturing process, such as grinding the weld seam to remove weld beads and restoring the original surface processing. Patterned boards are difficult or even unable to meet this requirement.
4. For some surface processing, grinding, or polishing patterns, there is directionality and they are called unidirectional. If this pattern is made vertical rather than horizontal when used, dirt will not easily adhere to it and it is easy to clean.
2、 Rolling surface processing
There are three basic types of rolling surface processing for plates and strips, which are represented by the production process of plates and strips.
No.1: After hot rolling, annealing, pickling, and descaling. The surface of the treated steel plate is a dull and somewhat rough surface.
No.2D: It has better surface processing than N0.1 and is also a dull surface. After cold rolling, annealing, descaling, and finally lightly rolling with a rough roller.
No.2B: This is the most commonly used method in construction applications. Except for the final light cold rolling with a polishing roller after annealing and descaling, other processes are the same as 2D, with a slightly shiny surface that can be polished.
No.2B Bright Annealing: This is a reflective surface that is rolled by polishing rollers and finally annealed in a controlled atmosphere. Bright annealing still maintains its reflective surface and does not produce oxide skin. Due to the absence of oxidation reactions during the bright annealing process, there is no need for further pickling and passivation treatment.
3、 Polished surface processing
No.3: Represented by 3A and 3B. 3A: The surface is evenly ground with an abrasive particle size of 80-100. 3B: Rough surface polishing, with uniform straight lines on the surface, usually made by polishing with a grit size of 180-200 on a 2A or 2B board in one go.
No.4: Unidirectional surface processing, with low reflectivity, may be the most widely used in construction applications. The process step is to first polish with coarse abrasive, and then grind with an abrasive with a particle size of 180.
No. 6: It is a further improvement on No. 4, which uses a Tempico polishing brush to polish the surface of No. 4 in abrasive and oil media. The surface finish is not included in British Standard 1449, but can be found in American standards.
No.7: Referred to as bright polishing, it refers to the process of polishing
