There are many different categories into which metals can be placed. Some metals may be ductile, some may be brittle. Other metals could be magnetic, and some have no magnetism at all. Some types of alloys can be precipitation hardened, and others cannot. The aforementioned are important distinctions; however, when categorizing metals, one of the most important differences worth noting is whether the metal in question is ferrous or non-ferrous.

What is a Ferrous Metal?

A metal with the descriptor “ferrous” means that it has iron in its composition. When the term ferrous metal is used, it also usually implies that iron is a large percentage of the elemental composition. If it’s not the most abundant element, it would probably be the second or third most prolific. If a metal only contains trace amounts of iron, as many metals do, then that small amount is not considered enough to declare the metal ferrous.

What are the Common Properties of Ferrous Metals?

About 78% of our atmosphere is made up of nitrogen. It's in the air we breathe and is necessary for plants (and humans) to survive. So how do you help your plants get all the nitrogen they need to thrive? The answer is garden soil inoculant. By inoculating your legume plants, you help to add nitrogen to your soil, which in turn lets the rest of your garden get the nitrogen it needs.

Nitrogen is a gas that occurs naturally in our atmosphere. It's one of the big three nutrients that plants need to survive, the others being phosphorus and potassium. Plants need nitrogen to grow because it helps them perform photosynthesis, which is the process that gives the plant its food – and in turn, our food.

Plants can't absorb nitrogen from the air; they need it to be in the soil to access it. That's where inoculation comes in. Inoculation helps certain plants, namely legumes, to fix nitrogen in the ground where it can be accessed more readily.

I will admit to taking my peas and beans for granted. I put the seeds in the ground, and a short while later I'm enjoying delicious legume-based meals. After harvesting, I put the plants in the compost pile to start the process over again next year. I didn't realize that I was missing an important step by leaving out a garden inoculant. If you aren't using an inoculant, you're not doing everything you can to make your plants happy.

What Is Silicon Slag Used For

Silicon slag

 is a solid residue after alumina extraction by fly ash sintering. The mainstream silicon slag is ferrosilicon slag and silicon metal slag in the market because of main content containing silicon. At present, silicon slag can be used not only for deoxidation in the steel making industry, but also in cement, concrete, calcium silicate board and permeable brick industry. However, due to high alkali content, silicon slag applications are quite limited in the building materials industry. The what is silicon slag used for? Today, we will enjoy knowledge about silicon slag applications for our customers.

Types of Deoxidizers

There are different possible ways to prepare a solution that will meet your requirement of preparing surfaces for treatment processes. This can be accomplished by preparing a solution of a strong acid and any other suitable chemical agent. The solutions based on nitric, sulfuric, or chromic acids are most commonly used for the deoxidation of aluminum. The nitric acid and sulfuric acid-based solutions are interchangeably used as deoxidizers. As nitric acid is most commonly used so in this article nitric acid-based solutions are discussed in detail.

Nitric acid can act as an autocatalytic and also slowly attack aluminum. Because of these abilities, nitric acid-based deoxidizers are most commonly used. The metals which are rich in magnesium cannot be treated efficiently with caustic etching or with other surface treatment processes. In those cases, the nitric acid-based solution is preferred because they are more effective deoxidizers in the case of magnesium. The oxidizers containing nitric acid produce the finishes of satin type. It does not remove the shine from the finished metal part and also helps in making the old parts serviceable by improving their surface finish. Nitric acid opens the pore structure which makes the anodizing process easier. After processes like painting, anodizing, or any other surface treatment, oxidizers based on nitric acid can be used. For example, the solution of 15-20% nitric acid, 60-70% ferric sulfate, and ammonium bifluoride can be used to remove the layer of aluminum oxide, before any surface treatment process. As these solutions are chromium-free, they are environment-friendly. Furthermore, no fume exhaust is required in this case. The 316 Stainless Steel or Polyvinylidene Fluoride (PVFD) liner is used to make the tanks for this type of deoxidation.

What Does Curing Agent Mean?

A curing agent is a substance that is used to harden a surface or material. It is typically applied to polymer surfaces to facilitate the bonding of the molecular components of the material. The stronger the molecular bonds are, the harder the material surface is.

There are three types of curing agents, namely: curing agents that react with the surface upon which they are applied to facilitate hardening; catalytic agents that do not react with the material surface; and initiator agents that only begin the necessary hardening reactions but do not continue to react with the system.