What kind of metal recycling bin
is good? With the increase in environmental protection awareness and aesthetic ability, there are more and more types and shapes of metal recycling bins, which can be described as diverse. However, when it comes to materials, there are currently three types of metal recycling bins on the market: cold-rolled steel, galvanized steel and stainless steel.
So what kind of metal recycling bin
1. When choosing a metal recycling bin, it depends on its weight. A good metal recycling bin will be very heavy in weight. The steel plate of a good metal recycling bin must be a little thicker than that of an ordinary trash can. If the steel plate is too thin, it is easy to deform, and is not resistant to damage or wear. Cold-rolled steel mainly depends on whether there are ‘small bubbles’. Too many ‘small bubbles’ means that the quality is not good enough.
2. Look at the paint and color on the outside. You have to consider whether the paint is even or not. It is just right. If the paint is too thick, it may be to cover up the quality problem on the steel plate.
3. If there are no welding traces at the welding port at the interface of the metal recycling bin
, it means that the tightness of the link is very good. You can also see the strength of a factory 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. Commonly used stainless steel plates are divided into two types, 201 and 304. The difference between the two types is their composition. 304 contains more chromium, and the surface is matte and does not rust; 201 has high manganese content, the surface is very bright and slightly dark black, high manganese content, easy to rust. The quality of 304 is better, so the price is also expensive. Therefore, when making trash cans, people generally choose 201 stainless steel. However, the use of stainless steel to make trash cans also has a disadvantage, that is, the thickness must be at least 1.0mm. Otherwise, the panel of the recycle bin is easy to dent and deform due to external forces. Of course, if the stainless steel is thicker, the higher the cost is obvious. Therefore, considering the overall cost performance, the proportion of stainless steel trash cans on the market is relatively small. I will provide you with a few pictures of stainless steel trash cans, you can take a look at them to increase your understanding
Next, let's talk about the trash can made of galvanized sheet. After all, galvanized sheet is actually a kind of steel sheet. However, due to the poor rust resistance of the steel plate under the influence of external factors, it caused too much trouble and loss for everyone, so the galvanized sheet came out later. In other words, in order to prevent the surface of the steel plate from being corroded too quickly and to prolong the service life of the steel plate, a layer of metallic zinc is coated on the surface of the steel plate. This kind of zinc-coated steel plate is called a galvanized steel plate. Due to the high cost performance of galvanized sheet material, it is used more in the trash can industry, including galvanized pipes. Here I will show you a picture of the galvanized sheet trash can for your reference.
Speaking of cold-rolled steel plate, its anti-corrosion performance is weak, and it is easy to oxidize and rust after being in contact with air for a long time. Therefore, the surface of the product generally requires painting, 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 more level of protection than cold-rolled steel sheet, and the service life is relatively longer. This is why the price of cold-rolled sheet trash cans is cheaper than galvanized sheet and stainless steel. As the saying goes, it is a price that you pay for, so customers should also consider many aspects when choosing to buy.