Choosing a Screw Barrel

When choosing a screw barrel, it is important to consider the material and alloy it is made from. There are several common alloys, such as HASTELLOY and MULTIMET. A bimetallic screw barrel will allow you to have smooth production without sacrificing strength. It also works with a variety of recycled materials, including plain plastic pipes, drip irrigation, and agricultural tubing.

ULTIMET

ULTIMET bimetallic screw barrels increase screw life by 2-5 times. The corrosion resistance of a bimetallic screw barrel is significantly increased in comparison to a single steel screw barrel. Single steels wear out very quickly and are expensive to replace. In addition, superalloy screw barrels require special machining and milling processes.

These screw barrels are available in different sizes. The outer and inner diameters of the barrels range from 14mm to 300mm. They are available in a variety of mixes.

HASTELLOY

A screw's compression ratio (CR) is its length from the first flight to its last flight, typically between two and four. It is also sometimes taken as the ratio of the first to last channel depths in a constant-pitch screw. This value can be indefinite, but is important for screw selection. Typically, screws are made of machinable steel. A hard alloy is applied to the flight surfaces closest to the barrel to delay wear. In some cases, the entire surface is hardened through nitriding. In many cases, the treatment simply involves placing a cap of hard alloy on the flight surfaces, which reduces wear on the entire screw.

The process of nitriding the screw barrel is very simple and effective. It produces a dense, chemically stable layer on the surface of the screw, which is much more resistant to corrosion in both water and alkaline solutions. Nitriding also reduces the barrel's stickiness, which is another factor that improves the machine's performance.

MULTIMET

When you purchase a Multimetal screw barrel, you are buying precision. Precision is something that is extremely important in screwing together materials. These types of barrels come in a variety of sizes, ranging from fourteen to three hundred and thirty millimeters. When choosing a Multimetal screw barrel, you should look for the inner and outer diameter of the screw. These measurements will determine the appropriate barrel design for your screw.

The most common problem with screw extruders is rapid wear of the screw and barrel. This can result in a variety of production issues and increase maintenance costs. In order to solve this problem, Extrutech is currently researching ways to improve screw barrel service life.

Designed for optimum performance, The outer and inner diameters of each barrel can range from 14mm to 300mm. They are designed to meet the specifications specified in the drawing.

The bimetallic coatings can be of various thicknesses, ranging from 0.025mm to 4mm in screw and barrel dimensions. Various coating techniques, including laser cladding, thermal spray and weld overlaying, are used to provide optimum performance. The two primary materials used in the process are Cobalt alloys and Cermet-carbides of Tungsten.

 The screw barrel is available in different diameters and can accommodate screws with inner and outer diameters ranging from 14mm to 300mm. The screw is the key component in many applications, and the screw barrel can help to make this process more efficient.

The bimetallic screw barrel is constructed in international standards and is designed to provide maximum performance at a lower energy consumption. The barrel is user-friendly and of high standard quality. It is an ideal choice for construction and manufacturing processes, and it does not suffer from corrosion problems.

Its innovative design allows it to be used for multiple plastic resins, and offers superior performance for specialized applications. screw barrels are custom designed to suit individual customer needs, and its patented designs and processes help plastics processors improve their processes and products.

The screw barrel's bimetallic design consists of a screw barrel made from a base metal and a second metal that acts as a hardened, corrosion-resistant layer. Depending on the type of screw barrel, it can have a bimetallic coating of more than 20 different types of metal.