Ⅰ. What kind of metal trash can is good?
With the enhancement of everyone's awareness of environmental protection and the improvement of aesthetic ability, there are more and more types and shapes of trash cans, which can be described as diverse.
However, in terms of materials, there are currently no more than three types of metal trash cans on the market, stainless steel trash cans, cold-rolled steel trash cans and galvanized steel trash cans.
1. When choosing a metal trash can, look at its weight. A good metal trash can will be heavy in weight. The steel plate of a good metal trash can must be a little thicker than that of an ordinary trash can. The steel plate is too thin and easy to deform, not resistant to damage and wear. Cold-rolled steel mainly depends on whether there are "small bubbles". Too many "small bubbles" means that the quality is not enough.
2. Look at the paint and color on the outside of the metal trash can. Whether the paint is uniform must also be considered. It is just right. If the paint is too thick, it may be to cover up the quality problems on the steel plate.
3. If there is no trace of welding on the welding port at the interface of the metal trash can, it means that the tightness of the connection is very good, and the strength of a factory can also be seen by looking at the welding. In fact, welding is also very simple, but if you really want to weld well, that is a technical job.
Stainless steel is better than the first two in terms of anti-corrosion. The commonly used stainless steel trash cans, such as stainless steel pedal trash can, are divided into two types: 201 and 304. The difference between the two models lies in their different components. 304 contains more chromium, and the surface is matte and not raw;
Model 201 contains high manganese, the surface is very bright and slightly dark black, high manganese content, easy to rust. The 304 is of better quality and therefore more expensive. Therefore, when making trash cans, people generally choose 201 stainless steel.
The metal trash can, like metal trash can with foot pedal, made of galvanized sheet is also a kind of steel plate. However, due to the influence of external factors, the rust resistance of steel plates is poor, causing too much trouble and loss to everyone, so it was only later that galvanized plates were said.
That is to say, in order to prevent the surface of the steel plate from being corroded too quickly, and in order to prolong the service life of the steel plate, a layer of metal zinc is coated on the surface of the steel plate. This zinc-coated steel plate is called a galvanized plate.
Due to the high cost performance of galvanized sheet material, including galvanized pipe, it is used more in the metal trash can industry.
When it comes to cold-rolled steel plate, its anti-corrosion performance is weak, and it is easy to oxidize and rust after being in contact with the air for a long time. Therefore, the surface of the product generally needs painting, plastic spraying and other processes.
All in all, under the same production process and the same outdoor conditions, the anti-corrosion performance of galvanized sheet is one level more protection than that of cold-rolled steel sheet, and the service life is relatively longer.
This is why the price of cold-rolled sheet metal trash cans is cheaper than that of galvanized sheet and stainless steel. As the saying goes, you get what you get for every price, so customers should also consider many aspects when choosing to buy.
As mentioned above, when you buy metal trash cans, you can use them, but when buying metal trash cans, you should choose a factory that has been in the trash can field for a long time, with more experience and good technology.