How to Keep Chemical Fertilizer in Winter

Some people mistakenly believe that the winter weather is cold, the temperature is low, chemical fertilizers do not evaporate, they do not burn and they are not corrosive. actually not.

Ammonium bicarbonate, ammonia, and ammonium sulfate in nitrogen fertilizers are not non-volatile under low temperature conditions, but they are slower in volatilization and less in volatilization than summer and autumn heat seasons; ammonium nitrate in nitrogen fertilizers, and potassium in fertilizers Potassium nitrate, sodium nitrate, etc. are prone to combustion explosions at high temperatures, but they are also stored in the vicinity of the kitchen or heating stove in the winter. There is also a great risk; the corrosiveness of SSP has little to do with the temperature. Bags, sacks, etc. will be corroded as long as they come in contact with superphosphate, and the contents of bags such as seeds, salt, and soda ash will deteriorate. When nitrogen fertilizers evaporate into water vapor in the air, they will turn into highly corrosive ammonium hydroxide. When seeds are encountered, the embryo will lose its germination power. When it meets grain, it will deteriorate, and when it encounters pesticides, it will fail, and it will encounter wood products. Iron will cause it to corrode and peel off.

In view of the above reasons, it is also necessary to store fertilizers in the cold season:

First, keep it sealed to prevent evaporation. Many nitrogen fertilizers, such as ammonium sulfate, ammonium bicarbonate, ammonium nitrate, etc., due to their extremely unstable nature, tend to decompose and volatilize and reduce fertilizer efficiency during storage. Therefore, for this type of fertilizer, airtight plastic bags or other containers with sealed and corrosion-resistant containers should be used.

Second, waterproof moisture. Nitrogen fertilizers in nitrogen fertilizers can be dissolved in water, and are easily agglomerated or drained when dampened or wetted. Therefore, during storage and storage, be sure to keep it dry and prevent breakage of the bag. If the bag breaks, it begins to absorb moisture and agglomerate, then it will dissolve the dripping water, causing loss.

Third, pay attention to fire prevention. Ammonium nitrate fertilizers are flammable and flammable. They easily oxidize at high temperatures and cause fire or explosion. Therefore, it is necessary to pay attention to fire prevention when storing such fertilizers. Do not store them near stoves or store them together with flammable materials. Fertilizers that react chemically with each other are best stored separately.

Fourth, prevent pollution. Ammonia fertilizer, etc. can not be placed in the bedroom, hall, so as to avoid volatile ammonia gas stimulate people's eyes, nose and respiratory tract, endangering health.

Fifth, anti-corrosion. Chemical fertilizers are more or less corrosive and must be strictly selected for storage containers. Carbon ammonia, calcium superphosphate, etc., must not be stored in sacks, sacks, and paper bags and should be stored in plastic bags or porcelain jars. All fertilizers cannot be stored in a house with seeds, grain, oil, farm implements, etc.

CNC Turning

What is CNC Turning

In CNC turning, a chuck (or specialized clamp) holds bars of material and, as they are rotated, a tool is fed to the piece to remove material to create a specific shape. A turret, which holds a group of tools, is programmed to move along the work piece in three different axes of motion to shape the material according to the assigned specifications.

Since CNC turning involves removing material from a work piece, it`s considered a [subtraction machining" process. It is done on a lathe machine, which can be used on all types of material, from wood to metal to plastic. It can also be done on a mill or a drill press.

Turning is primarily used to create cylindrical parts. It can be completed on the outside or the inside of a work piece, which is known as boring. The process can also be used to conduct various other operations, including:

· Grooving: Cuts grooves or creates narrow cavities in work pieces.

· Taper turning: Creates a gradually decreasing diameter in a cylindrical shape.

· Drilling: Produces round holes, which are typically for screws and bolts.

· Facing: Cuts a flat surface perpendicular to the axes of the milling cutter.

· Parting: Separates one part of the work piece from another.

· Knurling: Creates vertical, horizontal or crossing lines on the work piece.

· Threading: Makes grooves that can be screwed into other objects.

CNC Turning process

l Creating a digital representation of the part in CAD

l Creating the machining code from the CAD files

l CNC lathe setup

l Manufacturing of the turned parts

Capabilities

Suitable Materials for Turning

In turning, the raw form of the material is a piece of stock from which the workpieces are cut. This stock is available in a variety of shapes such as solid cylindrical bars and hollow tubes. Custom extrusions or existing parts such as castings or forgings are also sometimes used.

Turning can be performed on a variety of materials, including most metals and plastics. Common materials that are used in turning include the following:

l Aluminum

l Brass

l Magnesium

l Nickel

l Steel

l Thermoset plastics

l Titanium

l Zinc

When selecting a material, several factors must be considered, including the cost, strength, resistance to wear, and machinability. The machinability of a material is difficult to quantify, but can be following characteristics:

l Results in a good surface finish

l Promotes long tool life

l Requires low force and power to turn

l Provides easy collection of chips

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