POLISHING
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10-08-2015 - 09:57 AM ) - Lượt xem: 3813
There are 8 types of surface for stainless steels. Surface No. 3, 4, 6, 7 and 8 is the way which polish by mechanics using abration components and nonwoven disc.
No. 1 The surface of product is very blurr . The surface look at microscope is not flat . This product can be used in heat resistance industry and eroded and no need the flat surface such as industrial tank, tools in chemical .
No. 2D This product is not shinning . It often use in producing products with deep drawing . And it can be polished after producing. It usually use for petrochemical factory, automatic parts, construction material, stainless steel pipe.
No. 2B This product was treated from No.2D . This product is more shiny and wellknown than No. 2D . This is the standard surface. It use popular in all complicated deep drawing using. It is more easier to polish than No.1 and No. 2D .
No. 3 This product was polished with density 100-120 mesh . It can be used in many fields : constructions, interior and exterior decorations, family instruments and kitchen tools.
No. 4 This product was polished with density 150-180 mesh. It is more shinny than than No.3 . It is silver . It often used to make bathtub, interior and exterior decoration of buildings and food industry.
BA The surface likes mirror . It often use in family instruments , kitchen tools , contruction materials and other things with mirror surface.
HL This product is the surface with along stripped . This vein was made from polish machine same as No. 4 . It usually use in interiror and exterior decorations , windows and frame of doors.
Dull The surface is blurred and dull . It was made from decreasing the shinny rate of No. 2B and making rough for surface . It can use in interior exterior decorations , making wall and ceiling for elevators.
Electro-polishing This surface is smooth , flat and shinny . Products such as medical equipments , beds , wardrobes ....
Comparison table
The difference betwen industrial polishing and mechanical polishing . The rate of roughness on the surface before and after e-polishing :
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Type
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Size
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The roughness before e-polish, Ra
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The roughness after e-polish, Ra
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micrometer
|
microinches
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micrometer
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microinches
|
|
2B
|
60
|
3.56 max
|
140 max
|
1.78-2.25
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70-90
|
|
No.3
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120
|
1.14 max
|
45 max
|
0.57-0.75
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23-30
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|
No. 3
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180
|
0.64 max
|
25 max
|
0.32-0.40
|
13-16
|
|
Dull
|
240
|
0.20-0.51
|
8-20
|
0.10-0.26
|
4-10
|
|
E-polish
|
320
|
0.15-0.38
|
6-15
|
0.08-0.19
|
3-8
|
|
E-polish
|
500
|
0.10-0.25
|
4-10
|
0.05-0.13
|
2-5
|
|
* Estimate value. E-polish often decrease the result of measuring the roughness before e-polishing 50%.
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