pharmaceutical api manufacturing process

No matter how old dogs are, they seem to love to touch noses with people and other animals. In fact, dogs touch noses as a way of socializing, just like humans shake hands and hug when they meet. But dogs don’t nuzzle every human or every animal. They pick and choose who to nuzzle. If they don’t like you, or don’t know you at all, they won’t touch your nose. However, adult dogs will touch almost every puppy’s nose, and they will not only touch the puppy’s nose, but also smell the puppy’s body.

Galvanized wire is processed by low carbon steel wire rod. It is made of low carbon steel, after drawing forming, pickling and rust removal, high temperature annealing, hot dip galvanizing, cooling and other processes. Electrogalvanized iron wire using low carbon steel as raw materials, after drawing, galvanized and other processes completed. It has the characteristics of galvanized layer, strong corrosion resistance, strong galvanized layer, and so on. Galvanized iron wire is widely used in construction, highway walls, Zahua, weaving and other industries.

Post time: 14-06-24

In the purchase of large rolls of galvanized wire, see the hardness of galvanized wire first, only after the hardness reaches the standard can be used. The hardness standard of large roll galvanized wire is a very important performance index and an economic test method. But for the hardness of metal materials, there is not a unified and clear definition including all test methods at home and abroad.

Post time: 23-06-22

The coating on the surface of the welding core is called the coating. The coating of electrode plays a very important role in the welding process. If the photoelectrode without drug skin is used for welding, in the welding process, oxygen and nitrogen in the air will invade a large number of molten metal, metal iron and beneficial elements such as carbon, silicon, manganese oxidation and nitriding to form various oxides and nitrides, and residual in the weld, resulting in slag inclusion or cracks in the weld. The gas in the weld pool may produce a large number of pores in the weld. These factors can greatly reduce the mechanical properties of the weld and make it brittle.

First, the commonly used stainless steel plate is divided into two types of 201 and 304, the actual composition of the Nestor cage is different, 304 stainless steel Nestor cage quality is better, but the price is expensive, 201 is worse. Anping 304 for imported stainless steel plate, Anping 201 for domestic stainless steel plate.

In white iron, its carbon and iron together into iron carbide, crack appears white, very strong and brittle quality, for the material of malleable steel. The alloy grade consists of various alloying elements with different compositions and structures. Because alloying elements in iron ore can make copper through the material thickening degree of strengthening, hardness, impact force, strength resistance, closing rate, elongation, so alloying iron in the exercise of high quality iron, is the primary supplementary element.

Fence use: The use of the fence is generally one meter two to two meters a height of the impregnated welding mesh, mesh mostly 6cm, wire diameter from 2mm to 3mm.

Heavy duty hexagonal mesh made of steel wire by special machinery woven into a hexagonal mesh net. This kind of mesh can be cut and assembled into fence mesh, mountain hanging mesh, vegetation three-dimensional mesh, composite, etc. Aliases: Gabion mesh, heavy hexagonal mesh, ecological mesh, wire mesh, etc.

Paint on the galvanized layer, the bonding force between each other has a great relationship with the baking temperature of the paint, and alkyd paint is coated after galvanized, and the adhesion is not a problem. After galvanized to do amino paint, paint adhesion is not very good. Do two bottom two surface, adhesion is good, if the two bottom two surface changed to two bottom three surface, that is, more paint, more baked once, again test adhesion is very bad, bad enough to tear the paint from the galvanized layer.

Post time: 24-06-22

Post time: 24-02-23

But there are some necessary precautions in the production of galvanized wire. Remove all tools and piles on the work site and equipment that hinder activities, and slowly put the wire into the cylinder during pickling to prevent acid splashing on the body. When adding acid, the acid must be slowly poured into the water. Do not pour water into the acid to prevent acid spillage and injury. Workers should wear protective glasses when working. Then in the handling of wire and other items, it is strictly prohibited to push hard.

More network is the application of the stone cage net, stone cage net because it is used in water conservancy engineering more, so the anticorrosion performance requirements for wire is relatively high, so the general use of zinc aluminum alloy wire or high galvanized wire. Common wire diameter has 2.0mm, 2.2mm, 2.5,mm, 2.7mm and so on.

Fence use: generally used as a fence is a plastic-impregnated welded wire mesh with a height of 1.2 meters to 2 meters. Most of the mesh holes are 6cm, and the wire diameter varies from 2mm to 3mm.