How to identify the quality of color stainless steel plates
1. Look at the material
Color stainless steel plates are commonly used materials for 201 stainless steel, 304 stainless steel. Among them, 304 stainless steel plates are high than the 201 stainless steel plate resistance, and the original material is flat and brighter than the pressure delay. Because the difference is large, many merchants are charged in the secondary, and they are used to impersonate plants with pressure and use 201 to impersonate 304. Therefore, the first task when checking the goods is to verify whether the plate is specified.
201 and 304 can be distinguished by detecting potions, while the original material and pressure ingredients are mainly distinguished by observing the quality of the surface of the plate surface. The plate surface is darker, uneven color, often black or stripes, roller printing, more sand eye, and peeling marks on the back. The thickness difference of the plate surface can reach 2 to 3 wires.
However, with the improvement of many large -scale pressure -extended manufacturers, the gap between the official material and the pressure lax material is slowly narrowing. Some imitation plate boards can even be faked. Professionals with rich experience can be distinguished.
2. Observation effect
Color stainless steel plates are mainly used in the field of decoration, and have high requirements for ornamental and decorativeness of the board. Good colored stainless steel plates should have no color difference between color disisture, colorless color difference, uniform color, good color, no scratching bend without fading under the direct sunlight. The surface of the stainless steel mirror panel should not be grinded with head and horseshoe.
3. Tearing film
Color stainless steel boards will be affixed with a protective film before the factory. Many slow -selling boards have been placed in the warehouse for a long time, and the protective film has been powdered. It is difficult to tear, or after tearing, the surface of the board is still sticky to a lot of glue, that is, it is ugly and difficult to remove, and it takes time to work.
Even if it is a transparent film, when you check the goods, you must tear away a large piece to look at the quality of the film. If you need to cut the bending formation later, it is best to post a protective film of more than 6C to avoid scratching the board.
After the colored stainless steel plate is installed, the membrane layer should be torn off as soon as possible, and it should be covered with glue. Especially outdoor decoration, due to direct sunlight, it is best to tear off the protective film immediately after construction.